CN1723639A - Illumination light communication device - Google Patents
Illumination light communication device Download PDFInfo
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- CN1723639A CN1723639A CN200380104093.2A CN200380104093A CN1723639A CN 1723639 A CN1723639 A CN 1723639A CN 200380104093 A CN200380104093 A CN 200380104093A CN 1723639 A CN1723639 A CN 1723639A
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Abstract
The present invention has been developed considering the above-described problems and aims to provide various structures and applications for illuminative light communication. According to the first aspect of the prevent invention, a broadcast system includes an LED light source (115) for lighting, a power line (103) that supplies electric power to the LED light source (115), a data modulator (102) that modulates and multiplexes a plurality of pieces of data, superimposes the resulting signal on an electric power waveform, and then transmits the resulting superimposed signal waveform to the power line (103), and a filter (112) that selectively separates one or more of a plurality of pieces of modulated data on the power line so as to control light intensity or blinking of the LED light source (115). Data is transmitted through changes in light intensity or blinking of the LED light source.
Description
Technical field
The present invention relates to the technology of utilizing illumination light to communicate.
Background technology
In recent years, along with having utilized the communication system of electric wave, portable terminal device etc. universal become at one's side thing.Recently along with the exhaustion of frequency, and then the utilization of the short infrared ray of wavelength etc. is also prevailed.But electric wave also obtains confirming to the influence of Medical Devices or various precision equipments except the exhaustion of frequency, also worries its influence to human body (for example eye-safe etc.) about infrared ray in addition.For this reason, utilize the communication of light just to be paid close attention to as the way that can communicate safely by the people.
On the other hand, the exploitation by blue led has realized White LED.White LED compares with in the past white heat electric light or fluorescent lamp etc. that to have power consumption especially few, the feature of small-sized in addition and long-life and so on.For this reason, with regard to considering this White LED is utilized as lighting source.White LED and then also have for fast and so on the feature of the electric power answer speed of being imported.Be conceived to this feature, carry out by the research that makes it to have signal transfer functions with electric means control light on and off or light quantity.
Make the signal transfer functions of having utilized this White LED, also carry out with the research that as described above electric line communication system merges by means of light.For example at electronic information communication association technical research report, electronic information communication association of civic organization, on March 12nd, 2002, Vo1.101, No.726, the quick man of virtue and ability of inventor Xiao Mine among the pp.99-104 etc., Tanaka is abundant one, and the positive hero in middle river has proposed the emerging system of power line signal transmission " transmission of White LED illumination sign with ".In this system, so owing to used light can human body not influenced ground, communicate safely.And its further application also waits in expectation.
Summary of the invention
The present invention finishes in view of said circumstances, and the various formations and the application examples that provide realization to utilize the communication of illumination light are provided.
The purpose of the 1st invention provides a kind of by power line signal transmission with utilized the illumination optical signal transmission of LED, the broadcast system of most information of providing and delivering, and a kind of illuminating bulb used in such broadcast system is provided.
In broadcast system, it is characterized in that having: the led light source that is used to throw light on as its formation; Be used for power line to this led light source supply capability; To a plurality of information modulate with demultiplexing after make it overlapping and pass out to the information modulating device of this power line with power waveform; And a plurality of information after ovennodulation are separated one or more selectively and are controlled the light quantity of above-mentioned led light source or the filter apparatus of light on and off from the power line, wherein, come transmission information according to the variation or the light on and off of the light quantity of above-mentioned led light source.
In the 1st invention, make a plurality of information take advantage of to be loaded on the power line and transmit like this.And, for example as filter apparatus, be provided for selecting the choice device of information, if control the light quantity or the light on and off of led light source, come broadcast message by light selectively from this led light source with regard to that according to selected information.The selection of information except the filter by physically waits carry out, can also constitute according to the indication information on the power line and select, perhaps carry out the selection of information at the receiver side device.
More particularly, can constitute in the information modulating device by frequency division and pass out to power line after with a plurality of information demultiplexings, the different separately a plurality of band pass filters of frequency band are set in filter apparatus, and select one to come separate information.Perhaps, can constitute in the information modulating device by the time and cut apart, in filter apparatus, come identifying information and separate information selectively according to label information with a plurality of information demultiplexings and through passing out to power line after the additional marking information on the information of over-segmentation.
In addition, provide a kind of used in such broadcast system, utilize the electric power of being supplied with to come bulb luminous and that throw light on, it is characterized in that having: the led light source that is used to throw light on; And a plurality of information after ovennodulation of the electric power of supplying with from being overlapped in are separated one or more and the light quantity of control led light source or the filter apparatus of light on and off selectively.Generally speaking the electric power that is utilized is to exchange, below adopting under the situation about using, constitute with alternating electromotive force, promptly, the AC/DC converting means that exchange conversion is become direct current is set, and the electric power that will be overlapped in the informational content that filter apparatus separated by the direct current of AC/DC converting means institute conversion comes the driving LED light source.Only use this bulb, just the information on the power line can be sent by light by replacing general used bulb.Thereby, just can use original ligthing paraphernalia to realize dispensing, and need not carry out the constructions such as change of ligthing paraphernalia by means of the information of light.
The purpose of the 2nd invention provides a kind of in the communication that has utilized illumination light, utilize illumination light to carry out down link, and also communicate for up link, and realization is by means of the illuminating light communication device of the two-way communication of light by light (comprising infrared light etc.).
As being used for the transmitter side of its down link, become in addition in the illuminating light communication device of receiver side of up link, it is characterized in that having: the luminous and lighting device that throws light on; The modulating device that data-driven is controlled the flicker of above-mentioned lighting device or light quantity and illumination light is modulated; And, wherein, send data, and receive data by above-mentioned infrared rays receiver according to the illumination light that above-mentioned lighting device sent to the infrared rays receiver that the light modulated of sending here from the outside is accepted.According to this formation, just can also be undertaken by the infrared rays receiver up link, and realization is by means of the two-way communication of light with the down link that utilizes illumination light by light.
In addition, can constitute by one or more LED, can carry out down link by means of the illumination light of the characteristic of having applied flexibly LED as lighting device.In addition, infrared rays receiver can be accepted infrared light or visible light as light modulated.And then, can constitute by enough dimension sensors as infrared rays receiver.Thus, just can remove noise contributions such as upsetting light well by the signal efficiency that the part of light modulated and other parts are accepted in utilization.In addition,, just can separate and accept light modulated, receive up link from a plurality of light emitting sources from a plurality of positions by utilizing optical system such as lens.
In addition,, become in addition in the illuminating light communication device of transmitter side of up link, it is characterized in that having: accept according to the illumination light of data after ovennodulation to obtain the infrared rays receiver of above-mentioned data at receiver side as down link; And send light-emitting device according to data to be sent light after ovennodulation.According to this formation, just can accept down link at infrared rays receiver by means of illumination light, realize up link by light-emitting device by means of light.Thus, just can realize two-way communication by means of light.For example also can carry out two-way communication at portable terminal etc.
The light that light-emitting device can be sent is made as infrared light or visible light.By adopting light-emitting device to have, just can realize more reliable up link in addition with the formation of luminous light towards the tracking means of the infrared rays receiver of outside.
And then a kind of receiver side as down link becomes other illuminating light communication devices of the transmitter side of up link in addition, it is characterized in that having: accept according to the illumination light of data after ovennodulation to obtain the infrared rays receiver of above-mentioned data; And reflect above-mentioned illumination light and send according to data to be sent catoptrical reflection modulation device after ovennodulation.With this formation, also can carry out down link, and utilize the reverberation of this illumination light to carry out up link, the two-way communication that all realizes by means of light by means of illumination light.And then illumination light is very large electric power as described above, just can communicate more reliably by using it for up link.In addition, owing to do not need new light-emitting device etc.,, can also help very much province's electrification so just power consumption can be suppressed to the desired electric power degree of modulation.
As this reflection modulation device, can adopt the formation that comprises one or more corner reflectors (below, abbreviate CCR as).CCR has the character of the incident direction that reflects light to light, can send reverberation by the light source of used illumination light in down link.Utilize this reverberation to realize up link.In this formation, do not need to be used for the follower of the light that up link is used towards infrared rays receiver.In addition, owing to can will reflect towards separately light source from the light of a plurality of light source incidents, so under by the situation of accepting down link from the illumination light of a plurality of light sources, just can return the reverberation that is used for up link to light source separately, can alleviate garble etc., and communication quality is improved.
In addition, as the device that is used to modulate, can utilize optical gate to control through reaching blocking catoptrical, to modulate according to data.Perhaps can change, the reflection characteristic of CCR is changed modulate by the reflecting surface that makes CCR.
The reflection modulation device can adopt and have the corner modulation array of having arranged a plurality of CCR in addition; Be configured to image in the lens of above-mentioned corner modulation array; With the formation of the one or more CCR in the above-mentioned corner modulation array being controlled one by one the modulating device of catoptrical modulation.As described above since CCR have towards the catoptrical character of the incident direction of light, so imaging the CCR of light source of illumination light return reverberation towards its light source.If there are a plurality of light sources, then light source separately the CCR of imaging just corresponding light source is returned reverberation.Utilize this,, just can transmit side by side by carrying out catoptrical modulation one by one by one or more CCR corresponding to separately light source.
In the case as the device that one or more CCR are carried out catoptrical modulation one by one, can also constitute and utilize optical gate in addition, perhaps change and modulate by the reflecting surface that makes CCR.
Because illumination is extinguished sometimes, also can communicate when turning off the light so the 3rd purpose of inventing provides a kind of, seek in addition infrared communication effective utilization illuminating light communication device and be suitable for the illumination component of this illuminating light communication device.
In illuminating light communication device, the formation as being used for it is characterized in that, has: the luminous and lighting device that throws light on; The modulating device that data-driven is controlled the flicker of above-mentioned lighting device or light quantity and illumination light is modulated; Send the communicator of above-mentioned data by the optical communication mode beyond the illumination light; And according to the bright lamp of above-mentioned lighting device and the switching device shifter of the action of switching above-mentioned modulating device and above-mentioned communicator of turning off the light, wherein, above-mentioned switching device shifter switches with above-mentioned communicator when above-mentioned lighting device is turned off the light and moves.Can constitute as communicator and to utilize infrared communication to send data
Like this, send by modulating device by lighting device and to have carried out illumination light after the modulation, carry out illuminating light communication, and the communicator that combination is always carried out as infrared communication, with the bright lamp of lighting device the time, carry out illuminating light communication, when turning off the light, utilize the communication of the communicator of infrared communication etc.Thus, also can proceed communication when being extinguished in illumination.
In addition, can built-inly on a plurality of LED elements of lighting device optionally send the infrared light light-emitting component portion of infrared light and constitute being arranged under the situation of carrying out infrared communication as communicator.Thus, just do not need to be arranged on separately communicator used when turning off the light, and can the such lighting device that disposes of shadow can not occur in indoor utilization and carry out infrared communication, can reduce the influence of shade and carry out stable infrared communication.
In addition, in illuminating light communication device, it is characterized in that, have: the luminous and lighting device that throws light on; The modulating device that data-driven is controlled the flicker of above-mentioned lighting device or light quantity and illumination light is modulated, wherein, above-mentioned modulating device carries out modulating control accordingly with above-mentioned data while supplying with sufficient electric power to above-mentioned lighting device in order to throw light on when the bright lamp according to bright lamp and the switching of turning off the light indication, carries out modulating control accordingly with above-mentioned data and make the necessary flicker of only communicating by letter of above-mentioned lighting device when turning off the light.
In this formation, the communication during the bright lamp that also can carry out having sufficient light quantity as illumination is with in the light quantity communication when only communicating by letter needed luminous turning off the light when not required.Thereby, the bright lamp that the user can be thrown light on and turning off the light, and when turning off the light, also can carry out communication by means of light.
And then the illumination component as sending illumination light is characterized in that, comprising: the illumination light-emitting element portion of sending the white light that is used to throw light on; And the infrared light light-emitting component portion that sends the infrared light that is used for infrared communication.Can constitute and modulate driving by above-mentioned illumination light-emitting element portion and above-mentioned infrared light light-emitting component portion difference and can utilize communicating by letter of illumination light, can carry out as described above as illumination when bright lamp by means of the illuminating light communication of illumination light-emitting element portion, when the turning off the light of illumination, carry out infrared communication in addition by means of infrared light light-emitting component portion.Thus, in illuminating light communication in the past, can't communicate turn off the light the time also can communicate.In addition, communicator need be set separately, and can reduce the stable infrared communication of the influence of shade, can improve the possibility of infrared communication for infrared communication.
In addition, formation as illumination component, can be suitable for red, blue, green light-emitting component portion and infrared light light-emitting component portion have been carried out the formation that disposes side by side, perhaps will carry out constituting of configuration arranged side by side etc. with on every side illumination light-emitting element portion that fluorescer constituted and the infrared light light-emitting component portion that are arranged at this light-emitting component portion by the light-emitting component portion of indigo plant or ultraviolet light.
The purpose of the 4th invention provides a kind of lighting device that has used optical fiber that utilizes, and can carry out at a high speed, the illuminating light communication mode of high-quality communication.
As the formation that is used for it,, it is characterized in that having: the light source of the light that radioluminescence is used utilizing illumination light to transmit in the illuminating light communication mode of information; The light source control device that light modulated is radiated by light on and off or light quantity according to information Control light source to be sent; To carry out the optical fiber of conducting from the light modulated that light source radiated; And the end that is arranged on optical fiber carries out the light-scattering body that radiates after the scattering to conducting in the light modulated of optical fiber, wherein, will be used for illumination from the scattered light that light-scattering body radiated and come transmission information by this scattered light.
Optical fiber and above-mentioned light-scattering body can constitute by enough plastic materials.In addition, optical fiber and light-scattering body can integratedly constitute.
Light source can use the light source of radiation ultraviolet ray or blue light in addition, at this moment, can constitute and sneak into fluorophor throw light on and communicate by letter by fluorescence light in light-scattering body.Perhaps, can be provided with and send a plurality of light sources of the light of different colours separately.Can constitute light source control device this moment among a plurality of light sources at least one carried out the control of light on and off or light quantity.
The purpose of the 5th invention provides a kind of cable laying operation that does not need cable or optical fiber, and can as the communication that utilizes lamp cord, not produce the restriction of frequency band or wave radiation, noise problem such as overlapping illuminating light communication system and in this illuminating light communication system used lighting device and lighting source.
As the formation that is used for it, in the illuminating light communication system that utilizes illumination light to communicate, it is characterized in that, have: a plurality of lighting devices that send illumination light, and the optical communication apparatus that above-mentioned lighting device is sent information in the space by light, wherein, above-mentioned lighting device is accepted from the light of above-mentioned optical communication apparatus obtaining information, and according to above-mentioned information illumination light is modulated.The present invention in addition in identical illuminating light communication system, is characterized in that, has: a plurality of lighting devices that send illumination light; And the optical communication apparatus that one or more above-mentioned lighting devices is sent information in the space by light, wherein, one or more above-mentioned lighting devices are accepted light from above-mentioned optical communication apparatus to obtain information, other lighting devices are communicated to send above-mentioned information by light in the space, in each lighting device, illumination light is modulated and come transmission information by illumination light according to the above-mentioned information that receives from above-mentioned optical communication apparatus or other lighting devices.
According to this formation,, the information that sends is sent here by light the space from optical communication apparatus or other lighting devices on every side for lighting device with function that modulate illumination light communicates.Even utilize the communication of identical light, utilizing under the situation of optical fiber, also need to lay this optical fiber, if but in the space, communicate then do not need by light.For this reason, can construct illuminating light communication system very simply.In addition, as utilize the problem of the restriction of the frequency band the situation of power line or wave radiation etc. and so on also can not take place.
In addition, optical communication apparatus can constitute between optical communication apparatus or other lighting devices and carry out two-way communication.And then, accept the infrared rays receiver of light modulated by being provided with the terminal installation that receives information from accepting illumination light, can also carry out and terminal installation between two-way communication.Lighting device can utilize the semiconductor light-emitting elements of LED etc. as lighting source in addition.As lighting device for example both can be indoor illuminating lamp, also can be street lamp etc.
In addition, a kind of lighting device used in illuminating light communication system as described above is characterized in that having: the one or more light-emitting apparatus that send illumination light; Be used for and be arranged at the light R-T unit that the space between the light-emitting device of other devices communicates by light; And based on controlling above-mentioned light-emitting apparatus by the received information of above-mentioned light R-T unit, and control with according to above-mentioned information to modulate the control device that above-mentioned information is sent from the illumination light of above-mentioned light-emitting apparatus.
According to this formation, owing to do not need laying of cable or optical fiber etc. as described above, so, just can construct illuminating light communication system by for example only original lighting device being replaced with the so simple construction of lighting device of the present invention.
In addition, can constitute light R-T unit is configured in the different a plurality of positions of communication direction, will the space, send other devices from other light R-T units by the received information of certain light R-T unit by light.In view of the above, but just the degree of freedom is given in the configuration of illumination apparatus, and no matter how the configuration of lighting device all can carry out transmission of Information.In addition, can constitute light R-T unit can and other the device between carry out two-way communication.And then, accept the infrared rays receiver of light modulated by being provided with the terminal installation that receives information from accepting illumination light, can also carry out and terminal installation between two-way communication.Light-emitting apparatus can utilize the semiconductor light-emitting elements of LED etc. as lighting source in addition.As lighting device for example both can be indoor illuminating lamp, also can be street lamp etc.
And then, in being installed on the used lighting source of lighting device, it is characterized in that having: the one or more illumination light-emitting elements that go out illumination light; Be used for and be arranged at the light R-T unit that the space between the light-emitting device of other devices communicates by light; And based on controlling above-mentioned illumination light-emitting element by the received information of above-mentioned light R-T unit, and control with according to above-mentioned information to modulate the control device that above-mentioned information is sent from the illumination light of above-mentioned illumination light-emitting element.
By light R-T unit or control device are set on lighting source like this, just original lighting device can be intactly utilized, only just illuminating light communication system can be constructed by for example fluorescent lamp or bulb and lighting source of the present invention being changed so simple construction.
Can constitute on the different a plurality of positions of communication direction and dispose light R-T unit, will the space, send other devices from other light R-T units by the received information of certain light R-T unit by light.In addition, the transmit-receive position ground of the light by variable light R-T unit constitutes, and just all can carry out correspondence under the situation of the lighting device that is installed in what kind of configuration.And then, for example as the lighting device that utilizes fluorescent lamp, situation for a plurality of lighting sources of corresponding assortment, as light R-T unit be provided for and other lighting sources of adjacency between the device that communicates by light of space, and and be installed on device that the space between other lighting sources of other lighting devices communicates by light for well.
In this lighting source, also can constitute light R-T unit can and other the device between carry out two-way communication.And then, accept the infrared rays receiver of light modulated by being provided with the terminal installation that receives information from accepting illumination light, can also carry out and terminal installation between two-way communication.As the illumination light-emitting element, the semiconductor light-emitting elements that uses LED etc. is for well.In addition, this lighting source except room lighting with the light source, can also be outdoor use light sources such as street lamp.
The 6th invention as the 1st application examples, its objective is being used for making for people the semiconductor light-emitting elements of the used LED of the direct visible display unit of light etc., is used in the communication between device.
As the formation that is used for it, in electric equipment with the semiconductor light-emitting elements that shows usefulness, it is characterized in that having: control the light on and off of above-mentioned semiconductor light-emitting elements or the control device of luminous quantity according to information, and utilize the above-mentioned semiconductor light-emitting elements that shows usefulness to come transmission information.For example, be used for display unit state led light source or, the illuminating led light source of display unit etc. always is provided with according to separately demonstration purpose, by this semiconductor light-emitting elements being used in the communication of equipment room, just can carrying out transmission of Information and new communicator need not be set.In addition, even at device, also can make the new function such as the original function of this decoration is held transmission of Information with the led light source that is used for decorating.In addition, parts can not increase yet in appearance, and can not damage design same.
Utilized the message transmission that shows the semiconductor light-emitting elements of usefulness, can send to other equipment information of carrying out from this machine, as the formation that is used to the information that receives, the ultrared receiving system that can intactly utilize the use that for example in television receiver or cassette video tape etc., extensively utilized.Perhaps, can also constitute the infrared rays receiver of acceptance from the light of outside is set, receive by light is modulated the information of being sent here, send to receive and all can utilize light to communicate from other devices.
In addition, has the controller that electric equipment is indicated of being used for that utilizes above-mentioned ultrared receiving system, it is characterized in that having: accept according to the light that sends from the transmission information via modulation of electric equipment to receive the infrared rays receiver of transmission information; And the infrared communication device that is used for electric equipment is sent indication information.According to this formation, just can come reception information by the light that semiconductor light-emitting elements sent as described above with the demonstration usefulness that is arranged at electric equipment, by infrared ray electric equipment is sent information in addition, and carry out indication for electric equipment.
And then, having the controller that electric equipment is indicated of being used for of above-mentioned infrared rays receiver, it is characterized in that having: semiconductor light-emitting elements; And according to the indication information of above-mentioned electric equipment transmission is controlled the light on and off of above-mentioned semiconductor light-emitting elements or the modulating device of light quantity.Particularly, if be provided for the light from the semiconductor light-emitting elements emission is carried out the optical system of optically focused, the light that then is used to the information of transmitting just arrives electric equipment as optically focused light.As covering flashlight, the electric equipment that can send information to desire is towards optically focused light, just can be reliably and selectively, electric equipment is come transmission information by light.
In addition, in the case, by be provided with acceptance from above-mentioned electric equipment send and according to the light after sending the information via modulation to receive the infrared rays receiver of above-mentioned transmission information, send and receive the communication that all can carry out by means of light.
In addition, can in the formation of the controller that is provided with infrared rays receiver, be provided for infrared rays receiver is carried out the optical system of optically focused.According to this formation, even light emitting source externally exists under a plurality of situations, also can select light emitting source, and can receive transmission information selectively by optical system.
The 7th invention, as the 2nd application examples, its objective is that providing a kind of has that electrical efficiency is good, the emergency light of long-life light source, and a kind of emergency light wireless system for transmitting data that the data transmission source of this emergency light when unusual utilized and the emergency light that is utilized in this system are provided.
As the formation that is used for it, carrying storage battery, when unusual, do not have external power source and make in the emergency light of the bright lamp of light source, it is characterized in that: used LED as light source.Because as the feature of LED is higher electrical efficiency, the miniaturization of the device that the consumption, realization that just can suppress storage battery brings because of the miniaturization of storage battery or fluorescent lifetime long-term.In addition, owing to be the long-life, thus can the service intervals of the replacing of light source etc. is elongated, and can cut down maintenance cost.And then LED is also outstanding on impact resistance, and the emergency light that can not utilize when violent disaster can be provided damagedly.
And then, can constitute the storage device of storing the data of when unusual, transmitting being provided with on this emergency light; And control the electric power of supplying with to LED and control the luminous quantity of LED or the optic modulating device of light on and off based on the data that storage device is stored, transmit data by light.Because its response characteristics of LED is better,, the light that is used to show intactly can be used for transfer of data as described above so can carry out modulation based on such data.According to this formation, just can will only apply flexibly in the emergency light of demonstrations such as emergency exit or the emergency staircase information source when unusual in the past.At this moment, owing to intactly utilize light source as emergency light, can be very not high-power so almost can solve as different consumption with light source the voice output etc. with the power consumption degree in the light source.Thereby need not carry jumbo storage battery again, can show and use the storage battery degree of being carried to carry out action as information source for this data-transformation facility.
And then, the state that drives by external power source when can also constitute beyond being arranged on when unusual will be overlapped in down that data that the voltage of external power source sends here are separated and the demodulating equipment of demodulation, make by the resulting storage of this demodulating equipment in storage device.According to this formation, just can in beyond the data of transmission when unusual are when unusual, provide and deliver to emergency light separately by power line.Thus, just can easily carry out the setting of the data that when unusual, send or renewal etc.
The present invention in addition, utilize the emergency light that when unusual, do not have external power source and make the bright lamp of light source with transfer of data in the emergency light wireless system for transmitting data of terminal installation, it is characterized in that emergency light has: storage battery; LED as light source; Storing the storage device of the data of when unusual, transmitting; And control the electric power of supplying with to LED and control the luminous quantity of LED or the optic modulating device of light on and off based on the data that storage device is stored, terminal installation has: accept from the light of the LED radiation of emergency light and be transformed into the infrared rays receiver of electric signal; And to carrying out demodulation to obtain the demodulating equipment of data from the electric signal of this infrared rays receiver output.According to this formation, just can be when unusual from emergency light by light with transfer of data to terminal installation.For example, can make take refuge route or various information such as circular target etc. be presented at terminal installation, can when unusual, successfully carry out user's refuge guide with the map of floor or article etc.
The 8th invention as the 3rd application examples, its objective is that the lighting devices that provide a kind of on the way majority to be provided with are used in the purposes beyond throwing light on, and realize traffic smoothly, and provide all information to the user of road.
As the formation that is used for it, road lighting control system that set a plurality of lighting devices throw light on satisfying the need on being used for by the road and road lighting control method, it is characterized in that: lighting device with one or more illumination group that are made as, is carried out the control of illumination of the color etc. of for example light on and off or light quantity or luminous light one by one by illumination group.
Accident etc. for example can on the way take place when unusual, operation that the user is taken place unusually or perception automatically detect unusually unusually, determine the illumination group of the control of throwing light on according to this abnormality detection, with regard to determined illumination group control light on and off or light quantity, color etc., to report the unusual generation on the road.Because the lighting device on the road is configured every several 10 meters, so unusual generation can be passed to the road user meticulously.In addition, thus since lighting device to be arranged at higher position observability also high, can notify unusual generation widely.
In addition, under the situation that lighting device constitutes with semiconductor light-emitting elements, because generally speaking semiconductor light-emitting elements has response characteristics at a high speed, so by making semiconductor light-emitting elements send light modulated according to information, just can come transmission information by illumination light.Illumination light is very large electric power, comes transmission information just can communicate by letter reliably by utilizing it.In addition, lighting device generally is configured to make and becomes not dark on the road, so if send identical information from many lighting devices, even mobile communication can not interrupted yet.Otherwise,, also can communicate one by one comparing narrow region so change the information that will send one by one by lighting device by a place or number place because the zone of a lighting device lighting is so broad.
And then, under the situation of utilizing from semiconductor light-emitting elements from lighting device the information of transmission as described above, a plurality of above-mentioned semiconductor light-emitting elements are set for well on the substrate of bending.According to this formation, the lightness in the place that the lighting device from the road leaves is improved a little, and keep high-quality communication.Particularly, directive property is narrowed down,, just can further bring into play this effect to throw light at a distance by end at the substrate of the bending of lighting device.
The 9th invention, as the 4th application examples, its objective is provide a kind of can be at a high speed and high-qualityly carry out the moving body optical communication system and the moving body optical communication method of mobile communicating.
As the formation that is used for it, moving body is being sent in the moving body optical communication system of information, it is characterized in that: the leakage optical fiber that carries out conducting according to the light signal after the information via modulation and from the surface light signal the is leaked mobile route along above-mentioned moving body is laid, above-mentioned moving body has, and roughly above-mentioned vis-a-vis leakage optical fiber setting is also accepted from the infrared rays receiver of the light signal of above-mentioned leakage optical fiber leakage; And the light signal of being accepted by above-mentioned infrared rays receiver carried out demodulation to obtain the demodulating equipment of information, by means of light information is sent to above-mentioned moving body by above-mentioned leakage optical fiber.
In addition, moving body is being sent in the moving body optical communication method of information, it is characterized in that: will lay by the mobile route along above-mentioned moving body from the leakage optical fiber of surface leakage light signal, acceptance is provided with from the roughly above-mentioned vis-a-vis leakage optical fiber of infrared rays receiver of the light signal of above-mentioned leakage optical fiber leakage, and be provided with the light signal of accepting with above-mentioned infrared rays receiver is carried out demodulation to obtain the demodulating equipment of information, light signal after making above-mentioned leakage optical fiber conducting according to the information via modulation also makes the surface leakage of light signal from above-mentioned leakage optical fiber, behind the light signal of the surface leakage of above-mentioned leakage optical fiber, carry out demodulation by the above-mentioned infrared rays receiver acceptance that is arranged at above-mentioned moving body with above-mentioned demodulating equipment, and obtain information, by means of light information is sent to above-mentioned moving body by above-mentioned leakage optical fiber thus.
Like this moving body is being sent under the situation of information, light signal is leaked from the leakage optical fiber in the path of the moving body that is laid in, accepting the light signal that is leaked by the infrared rays receiver that is arranged at moving body.In the interval that is laid with continuous leakage optical fiber, owing to leak identical light signal, so if even moving body moves also and can accept identical light signal in this interval from leakage optical fiber.At this moment, owing to be to accept the light that leaks along mobile route rather than from the light of fixing point, so can roughly keep the distance of leakage optical fiber and moving body and become in-plant transmitting-receiving light with moving body.Thereby just can carry out high-quality communication.So use up the influence that is difficult to be subjected to the multipath decline as electric wave owing to making in addition, also can keep communication quality even in the tunnel, wait, also can realize communication at a high speed in addition.
And then, sending the moving body optical communication system of information from moving body, it is characterized in that: above-mentioned moving body has, the modulating device that information is modulated; The light-emitting device that will the information after ovennodulation radiates as light signal; And the leakage optical fiber that the light signal from the radiation of above-mentioned light-emitting device is carried out conducting and from the surface light signal leaked, the roughly above-mentioned leakage optical fiber setting of above-mentioned moving body vis-a-vis in addition, light signal that acceptance is leaked from above-mentioned leakage optical fiber and the infrared rays receiver that is transformed into electric signal are a plurality of with the arranged spaced of regulation along the mobile route of above-mentioned moving body, information are sent from above-mentioned moving body by means of light by the above-mentioned leakage optical fiber that is arranged at above-mentioned moving body.
And then, sending the moving body optical communication method of information, it is characterized in that: the modulating device that information is modulated is set on above-mentioned moving body in addition from moving body; The light-emitting device that will the information after ovennodulation radiates as light signal; And the leakage optical fiber that the light signal from the radiation of above-mentioned light-emitting device is carried out conducting and from the surface light signal leaked, light signal that leaks from the above-mentioned leakage optical fiber of above-mentioned moving body and the roughly above-mentioned vis-a-vis leakage optical fiber of infrared rays receiver that is transformed into electric signal will be accepted, mobile route along above-mentioned moving body is a plurality of with the arranged spaced of regulation, in above-mentioned moving body, information is modulated with above-mentioned modulating device and be emitted to above-mentioned leakage optical fiber as light signal with above-mentioned light-emitting device, accept from the light signal of the surface leakage of above-mentioned leakage optical fiber and be transformed into electric signal by above-mentioned infrared rays receiver, carry out transmission thus from the information of above-mentioned moving body.
Sending under the situation of information from moving body like this, also is that light signal is leaked from the leakage optical fiber that is arranged at moving body, by the light signal of accepting with the infrared rays receiver that the interval was disposed of regulation along the mobile route of moving body to be leaked.Even moving body moves, leakage optical fiber moves, light signal leaks in the interval of the length that is equivalent to leakage optical fiber.Thereby,, just can receive information from moving body if at least one of the infrared rays receiver of a plurality of configurations accepted the light signal that leakage optical fiber leaked from moving body.In addition, because the leakage optical fiber on the moving body and the distance of infrared rays receiver roughly keep constant, so can carry out high-quality communication.So use up the influence that is difficult to be subjected to the multipath decline as electric wave owing to making in addition, also can keep communication quality even in the tunnel, wait, also can realize communication at a high speed in addition.
According to these the 9th inventions, just can carry out to the transmission of the information of moving body or from the transmission of the information of moving body.In the case, the leakage optical fiber on mobile side or infrared rays receiver can be arranged in the floor of moving body, can be with the leakage optical fiber of ground upside or infrared rays receiver setting in orbit.Because moving body covers track when communicating,, carry out high-quality and communication at a high speed so can reduce the influence of upset light such as sunlight so can carry out communication in the dark by means of light.
Description of drawings
Fig. 1 is the block diagram of the 1st execution mode of the broadcast system of expression the application the 1st invention.
Fig. 2 (A) is the key diagram of an example of the signal waveform on the electric wire, and Fig. 2 (B) is its part enlarged drawing.
Fig. 3 is the block diagram of the 2nd execution mode of the broadcast system of expression the application the 1st invention.
Fig. 4 (A) is the concept map of expression applicable to an execution mode of the bulb of the broadcast system of the application's the 1st invention, and Fig. 4 (B) is the key diagram of the loading and unloading form of bulb.
Fig. 5 is the key diagram of the 1st application examples of the application's the 1st invention.
Fig. 6 is the key diagram of the 2nd application examples of the application's the 1st invention.
Fig. 7 is the summary pie graph of expression the application the 2nd invention the 1st execution mode.
Fig. 8 is the key diagram of the variation in the light accepting part 13 of illumination side communicator 1.
Fig. 9 is the key diagram of the variation in the illuminating part 22 of end side communicator 2.
Figure 10 is the summary pie graph of the 2nd execution mode of expression the application the 2nd invention.
Figure 11 utilizes the key diagram of mirror as a configuration example of reflection modulation portion 24.
Figure 12 is the key diagram of the summary of CCR.
Figure 13 is the key diagram that has utilized an example of the modulator approach under the situation of CCR, and Figure 13 (A) has been to use the key diagram of the form of optical gate, the key diagram that Figure 13 (B) has been to use dielectric form, the key diagram that Figure 13 (C) has been to use the form of adjuster.
Figure 14 is the key diagram to the incident light of reflection modulation portion 24 and the catoptrical example after ovennodulation, Figure 14 (A) is the oscillogram of the example of data transmission bauds when comparing high speed with the data transmission bauds of up link of expression down link, and Figure 14 (B) is the oscillogram of the data transmission bauds degree of the data transmission bauds of expression down link and the up link example quite or below it time.
Figure 15 is the key diagram that CCR has been carried out the example of utilizing form of the illuminating light communication device that carries as reflection modulation portion 24.
Figure 16 is the key diagram of an example that is provided with the synthetic method of the received signal under the situation of a plurality of illumination side communicators in an example of utilizing form of the illuminating light communication device that CCR has been carried out as reflection modulation portion 24 carry.
Figure 17 is the key diagram of the configuration example that can send side by side in the reflection modulation portion 24 of end side communicator 2.
Figure 18 is the block diagram of the 1st execution mode of the illuminating light communication device of expression the application the 3rd invention.
Figure 19 is the key diagram that utilizes an example of the action that the connection of switch 12～14 cuts off.
Figure 20 is the ideograph of an example of illumination component of the application's the 3rd invention of the expression illuminating light communication device that is suitable for the application the 3rd invention.
Figure 21 is the key diagram to the suitable example of the illuminating light communication device of the application's the 3rd invention of an example of the illumination component of the application the 3rd invention.
Figure 22 is the ideograph of other examples of illumination component of the application's the 3rd invention of the expression illuminating light communication device that is suitable for the application the 3rd invention.
Figure 23 is the key diagram to the suitable example of the illuminating light communication device of the application's the 3rd invention of other examples of the illumination component of the application the 3rd invention.
Figure 24 is the block diagram of the 2nd execution mode of the illuminating light communication device of expression the application the 3rd invention.
Figure 25 is the pie graph of an example of general White LED, and Figure 25 (A) expression is provided with the example of the light-emitting component of 3 looks, and Figure 25 (B) expression has utilized the example of fluorescent material.
Figure 26 is the concept map of the 1st execution mode of expression the application the 4th invention.
Figure 27 is the concept map of the 1st variation in the 1st execution mode of expression the application the 4th invention.
Figure 28 is the concept map of the 2nd variation in the 1st execution mode of expression the application the 4th invention.
Figure 29 is the concept map of the 2nd execution mode of expression the application the 4th invention.
Figure 30 is the summary pie graph of variation of the 2nd execution mode of expression the application the 4th invention.
Figure 31 is the key diagram of the application examples of the application's the 4th invention.
Figure 32 be in the past utilization the key diagram of one example of lighting device of optical fiber.
Figure 33 is the concept map of the 1st execution mode of the illuminating light communication system of expression the application the 5th invention.
Figure 34 is the concept map of the 2nd execution mode of the illuminating light communication system of expression the application the 5th invention.
Figure 35 is the plane graph of an example of the ligthing paraphernalia in the 2nd execution mode of illuminating light communication system of expression the application the 5th invention.
Figure 36 is the concept map of the 1st variation of the 2nd execution mode of the illuminating light communication system of expression the application the 5th invention, and Figure 36 (A) is a sectional view, and Figure 36 (B) is an oblique view.
Figure 37 is the concept map of the 2nd variation of the 2nd execution mode of the illuminating light communication system of expression the application the 5th invention.
Figure 38 is the concept map of the 3rd variation of the 2nd execution mode of the illuminating light communication system of expression the application the 5th invention.
Figure 39 is the concept map of the 3rd execution mode of the illuminating light communication system of expression the application the 5th invention.
Figure 40 is other concept maps of the 3rd execution mode of the illuminating light communication system of expression the application the 5th invention.
Figure 41 is the key diagram of an example of the lighting source in the 3rd execution mode of illuminating light communication system of the application the 5th invention.
Figure 42 is the concept map of the 4th execution mode of the illuminating light communication system of expression the application the 5th invention.
Figure 43 is the key diagram of an example of the lighting source in the 4th execution mode of illuminating light communication system of the application the 5th invention.
Figure 44 is the concept map of the 5th execution mode of the illuminating light communication system of expression the application the 5th invention.
Figure 45 is the block diagram of an execution mode of the electric equipment of expression the application the 6th invention.
Figure 46 is the skeleton diagram of the 1st application examples in the execution mode of electric equipment of expression the application the 6th invention.
Figure 47 is the skeleton diagram of the variation of the 1st application examples in the execution mode of electric equipment of expression the application the 6th invention.
Figure 48 is the skeleton diagram of the 2nd application examples in the execution mode of electric equipment of expression the application the 6th invention.
Figure 49 is the skeleton diagram of the variation of the 2nd application examples in the execution mode of electric equipment of expression the application the 6th invention.
Figure 50 is the skeleton diagram of the 3rd application examples in the execution mode of electric equipment of expression the application the 6th invention.
Figure 51 is the skeleton diagram of the 4th application examples in the execution mode of electric equipment of expression the application the 6th invention.
Figure 52 is the skeleton diagram of the 5th application examples in the execution mode of electric equipment of expression the application the 6th invention.
Figure 53 be in electric equipment with LED as the key diagram that shows with an example of the form of utilizing, the example of Figure 53 (A) expression television receiver, the example of expression audio frequency apparatus among Figure 53 (B), the example of the instrument of Figure 53 (C) expression tester etc.
Figure 54 is a key diagram of LED being used other examples of the form of utilizing in electric equipment as demonstration, Figure 54 (A) expression is provided with the example of the equipment of liquid crystal panel, the example of Figure 54 (B) expression node personal computer, Figure 54 (C) expression is used in the example of the lamp decoration of Christmas tree.
Figure 55 is the block diagram of an execution mode of the emergency light of expression the application the 7th invention and emergency light wireless system for transmitting data.
Figure 56 is the key diagram as an example of the led array of light source, the dismantle outward appearance of lampshade of emergency light of Figure 56 (A) expression, and an example of the led array that Figure 56 (B) expression is used, Figure 56 (C) expression is arranged at other examples that the picture of lampshade shows.
Figure 57 is the block diagram of other execution modes of the emergency light of expression the application the 7th invention and emergency light wireless system for transmitting data.
Figure 58 is the block diagram of the 1st execution mode of the road lighting control system of expression the application the 8th invention.
Figure 59 is the key diagram of an example of form of the illumination of the illuminating lamp when taking place unusually.
Figure 60 is the summary pie graph of the 2nd execution mode of the road lighting control system of expression the application the 8th invention.
Figure 61 is the summary sectional view of an example of substrate shape of the luminous component of expression illuminating lamp.
Figure 62 is the summary pie graph of an execution mode of expression the application the 9th invention.
Figure 63 is the key diagram of one example of the action of (down link) when sending information of the moving body 11 in an execution mode of the application the 9th invention.
Figure 64 is the key diagram of one example of the action of (up link) when sending information of the moving body 11 from an execution mode of the application the 9th invention.
Embodiment
＜the 1 invention 〉
At first, just the application's the 1st invention describes.The 1st invention relates to by light coming the broadcast system of distribution information and being suitable for the bulb of this broadcast system.
As one of communication system, electric line communication system is studied.This electric line communication system is that the power line that will be laid in house or building, supply capability remains untouched and transmits information as signal transmission medium.Power line is the very high basic facilities of popularity rate, can communicate with the equipment room that power line linked basically.But, for example as portable terminal device etc., then can't communicate between not with the equipment that power line linked.The invention provides following broadcast system to not with the equipment that this power line linked, particularly to the equipment distribution information of majority.
Fig. 1 is the block diagram of the 1st execution mode of the broadcast system of expression the application the 1st invention.Among the figure, the 101st, information source, the 102nd, power line modulator, the 103rd, power line, 104, the 105th, consent, the 106th, the LED ligthing paraphernalia, the 107th, be subjected to optical terminus, the 111st, the AC/DC transformation component, the 112nd, band pass filter, the 113rd, selection portion, the 114th, stack portion, the 115th, LED group.Information source 101 can also be by TV or CATV except computer, and the equipment of the tuner of radio receiver, wired broadcasting etc. or receiver etc., the various information of output constitutes.Thereby,, can also be various information such as reflection or music, sound, image, lteral data as the information of broadcasting.The information of broadcasting can also be established a plurality of information here and be output for one or more.
102 pairs of one or more information from information source 101 outputs of power line modulator are modulated and demultiplexing, and pass out to power line 103 after being overlapped in power waveform.In addition, more in order to realize that two-way communication also has the situation of demodulating equipment in common power line communication, but owing to be that unidirectional signal post is not to need demodulating equipment in broadcast system.In addition, the example as the demultiplexing method of information is carried out demultiplexing by frequency division in this example.
Owing to, be transformed into direct current so AC/DC transformation component 111 is the alternating electromotive forces that will supply with from power line 103 in order to make LED organize 115 luminous need drivings by direct current power.Can use existing technology as AC/DC transformation component 111.In addition, also carry out the adjustment of voltage in conjunction with the operation voltage of LED group 115.And then, in band pass filter 112, also move the supply of needed electric power.In addition, as described above since on power line 103 overlapping the waveform of the information after ovennodulation, so for example wish to make the waveform of information not appear on the dc waveform as far as possible by smoothing circuit etc.
Band pass filter 112 for extract on power line 103 the signal of overlapping information be provided with.As described above, in this example since separately information by frequency division by demultiplexing, so can among a plurality of information, separate an information selectively by the band pass filter 112 that characteristic frequency is passed through.In example shown in Figure 1, express and be set up in parallel the example that makes the different a plurality of band pass filters of the frequency passed through respectively.Perhaps, can also the band pass filter of the frequency band that passes through be constituted by changing.In addition, about waveform through the information after separating, can also applying bias or enforcement shaping or amplification etc.
Selection portion 113 is chosen in one or more filters that will use among a plurality of filters that are arranged at band pass filter 112, selects to use up the information of providing and delivering thus.Selection is except with manually carrying out, the control signal that demodulation is selectively sent here as certain characteristic frequency, and constitute like this etc., also can be to select such formation by additive method according to the selection that this control signal is carried out filter.Perhaps, also can be the formation that adopts the frequency that can change tape bandpass filter 112 makes it to pass through, 113 pairs of band pass filters of selection portion 112 are set the such formation of information correspondent frequency with dispensing.Though in Fig. 1, selection portion 113 is arranged on the prime of band pass filter 112, also can be arranged at level thereafter.In addition, under the situation of the formation of the frequency band that can change tape bandpass filter 112 makes it to pass through, also can be according to the control signal of characteristic frequency band pass filter 112 to be set the such formation of frequency bands as selection portion 113.And then, next selection portion 113 is not set in the situation of the information sent here with fixing frequency of only providing and delivering as this LED ligthing paraphernalia 106, possesses the filter that fixing frequency band is passed through as band pass filter 112 and get final product.
Being subjected to optical terminus 107 is to have an infrared rays receiver, accepts from the light of LED ligthing paraphernalia 106 irradiations and extracts the signal of information, carries out demodulation to receive the terminal of information.As long as the words that are subjected to optical terminus 107 to have infrared rays receiver just can be to install arbitrarily, except personal computer or portable terminal device, portable phone etc., can also be display device of the audio frequency apparatus that is provided with infrared rays receiver, television set etc. etc., various equipment.
Next, just an example of the action in the 1st execution mode of the broadcast system of the application's the 1st invention describes simply.As information source 101, prepare the various contents of broadcasting.For example except data, be ready to TV or CATV, radio receiver, wired broadcasting etc., various information according to purposes from computer.
By power line 103, electric power and information are sent to LED ligthing paraphernalia 106 from consent 105.In LED ligthing paraphernalia 106, obtain to be loaded with the electric power of signal waveform from consent 105.Then, on the one hand it is rectified into the direct current power that is used for driving LED group 115, sends to stack portion 114 with AC/DC transformation component 111.Use the frequency content of only taking out regulation by the filter in the selection portion 113 selected band pass filters 112 on the other hand.At this moment, as required applying bias or carry out the shaping of waveform or amplification etc. for well.
The signal of the information that is transformed into the power waveform of direct current with AC/DC transformation component 111 like this and extracts with band pass filter 112 is synthesized the outer LED group 115 that adds in back with stack portion 114.Change printing the voltage that adds signal waveform on the LED group 115 according to the information after synthesizing.The luminous quantity of LED group 115 just changes according to the signal waveform of information thus, thereby can send information.
Be subjected to the photo detector of optical terminus 107 sides to carry out sensitization from the light of these LED group 115 emissions by being arranged at.Then, the variation by extracting the light quantity accepted and carry out demodulation and just can be subjected to optical terminus 107 to obtain information.Like this, among the information that provides from information source 101, selected information just is sent with illumination light in LED ligthing paraphernalia 106, and receives in being subjected to optical terminus 107.At this moment, even the light accepting part that is subjected to optical terminus 107 can be correctly not relative with LED ligthing paraphernalia 106 (LED group 115) yet, as long as can accept the signal that illumination light just can obtain information by the excellent communications quality to a certain extent.This be according to because of the LED illumination light be for illumination use thus apparent on transmission electric power very big.Sending with same signal strength signal intensity under the situation of signal by used infrared ray always, the influence of human body (for example eyes) is not added avoidance, also is favourable even utilize the transmission of Information of light on this meaning.
In addition, though only represent a LED ligthing paraphernalia 106 here, for example nearby dispose under the situation of a LED ligthing paraphernalia 106, broadcast by selecting identical information, just can just become very strong for shade, in addition can be corresponding for mobile also becoming.Even otherwise the LED ligthing paraphernalia 106 that exists other information of selection to broadcast nearby, if near a LED ligthing paraphernalia 106, receive, so owing to the optical attenuation influence from other LED ligthing paraphernalias 106 diminishes.In addition, such as like this and the interference of other LED ligthing paraphernalias become under the situation of problem to when modulating from the information of information source 101, the modulation system of interference is good in employing, for example OOK-RZ (On-Off Key ing, Return-to-Zero) or OFDM (Orthogonal Frequency Division Multiplexing) etc. modulate and get final product.
In addition, in example shown in Figure 1, be located at and AC/DC transformation component 111 or band pass filter 112 etc. are set in the LED ligthing paraphernalia 106 are illustrated.But be not limited to this, for example also can constitute on the metope switch etc. of usefulness is cut off in the connection of illumination these circuit are set, the direct current of the waveform of partly supplying with information overlapping at power line from the metope switch to LED ligthing paraphernalia 106.In the case, also can connect the switch that cuts off usefulness as the switch of selection portion 113 and be arranged at metope with illumination.Certainly, being not limited to these examples about each configuration of components can be arbitrarily.
Fig. 3 is the block diagram of the 2nd execution mode of the broadcast system of expression the application the 1st invention.Among the figure, to additional same-sign of the part identical and omission explanation with Fig. 1.The 116th, band pass filter, the 117th, detection unit, the 118th, selection portion.In this example, distribute fixing identifying information (IP, PN code etc.) one by one by LED ligthing paraphernalia 106 or information, broadcast by the information specific of more only selecting of identifying information.
In LED ligthing paraphernalia 106, comprise band pass filter 116, detection unit 117, selection portion 118 grades and constituting with LED group 115 and AC/DC transformation component 111.Band pass filter 116 is removed the signal component of the alternating component of electric power with separate information.In this example, the signals whole about a plurality of information pass through band pass filter 116.
Extract header portion the signal of the information of detection unit 117 after separating, compare, judge whether the information of being sent here should send by light with predefined identifying information by band pass filter 116.Then, under the situation that is the information that should send, select the signal of message parts to make it output to stack portion 114 to selection portion 118.Signal by selection portion 118 carries out overlapping with the power waveform that is transformed into direct current with AC/DC transformation component 111 in stack portion 114 and supply LED group 115.Later on same with the 1st above-mentioned execution mode, light quantity is become LED group 115 signals according to information or the control light on and off, to utilize the transmission of Information of light.In addition, the luminous illumination by LED group 115.
In the 2nd execution mode,, just can control the information of broadcasting one by one by LED ligthing paraphernalia 106 in a side that information is passed out to power line 103 if for example distribute identifying information one by one by LED ligthing paraphernalia 106.In addition, constitute, just can select the information of broadcasting from LED ligthing paraphernalia 106 separately by setting identifying information ground.In the case, can also constitute and to set a plurality of identifying informations, select a plurality of information to send by light.
In this 2nd execution mode, also can take various forms equally with above-mentioned the 1st execution mode.In addition, also implement equally about its advantage with the above-mentioned the 1st.
Except these execution modes, can also constitute for the information of providing and delivering and not select, but will all utilize light to provide and deliver by the information that power line 103 is sent here with illumination light, in the end side that receives information is selected.
Fig. 4 is the concept map of expression applicable to an execution mode of the bulb of the broadcast system of the application's the 1st invention.Among the figure, the 121st, bulb, the 122nd, lamp holder, the 123rd, lamp socket.Example shown in Figure 4 can be suitable for as the part of the LED ligthing paraphernalia 106 in each execution mode of above-mentioned broadcast system.As the always general usage of ligthing paraphernalia is the white heat bulb to be installed utilize.Set in advance lamp socket 123 at ceiling etc., as Fig. 4 (B) be screwed into bulb 121 on the lamp socket that is shown in 123 lamp holder 122 be electrically connected realizing.In this example, partly remain untouched and utilize original equipment, shown in Fig. 4 (A), in bulb 121, be contained in the formation in the LED ligthing paraphernalia 106 shown in the above-mentioned the 1st or the 2nd execution mode about distribution up to power line 103 or lamp socket 123.For example can be contained in the part of the lamp holder 122 of bulb 121.In addition, different with the point-source of light of the such use filament of white heat bulb in the past, dispose most LED owing to be, so can hold circuit part in its inside planarly.
By using this bulb 121, just can be only with the bulb 121 of general white heat bulb replacement cost application the 1st invention, bulb 121 is used as the transmission source by means of the information of light.
Certainly, the shape of used various bulbs is also used the bulb of different shape except shape as shown in Figure 4 in the past certainly.Also be not limited to as shown in Figure 4 shape about the shape of the bulb 121 of the application the 1st invention, can constitute with shape arbitrarily.For example can also as fluorescent lamp, constitute the bulb 121 of the shape of having arranged LED linearlyly.
Secondly, just the application examples of the broadcast system invented of the application the 1st is carried out some explanations.Fig. 5 is the key diagram of the 1st application examples of the application's the 1st invention.Among the figure, the 131st, the LED ligthing paraphernalia, the 132nd, works, the 133rd, be subjected to optical terminus.Example shown in Figure 5, expression are applicable to the broadcast system of the application's the 1st invention one example in the Art Museum or museum etc.In the Art Museum or museum etc., works or display material (below, be called works 132) are implemented one by one such as the such illumination of spotlight, also adhered to the explanation of works 132 in addition.As the ligthing paraphernalia of these works 132 of illumination, use the LED ligthing paraphernalia 131 of the application's the 1st invention.On the other hand, send at the descriptive information of overlapping works 132 on the power line 103 of LED ligthing paraphernalia 131 supply capabilities.The descriptive information that overlap power line 103 this moment carries out overlapping to most works 132 in advance.Then, in the LED ligthing paraphernalia 131 that each works 132 is provided with one by one, extract selectively about the descriptive information of works separately, light quantity or the light on and off by the control illumination light utilize light that descriptive information is sent as described above.
Light is irradiated to and is subjected to optical terminus 133 if the appreciator will be taken out by optical terminus 133 will before works 132, by take out that its light quantity changes or light on and off carry out demodulation just can be with reference to the descriptive information of these works 132.In addition, if the appreciator moves to before next works, then the descriptive information of these works is transmitted by the light of these works that throw light on, if with reference to being subjected to the optical terminus 133 just can be with reference to the descriptive information of these works.
Like this, be overlapped in power waveform at the descriptive information that makes each each works 132 and pass out to power line 103, in the LED ligthing paraphernalia 131 that each works is thrown light on, utilize light to send by the descriptive information of selecting corresponding works 132, just can the descriptive information of each works 132 be prompted to the appreciator with the illumination of works 132.
Each descriptive information of each works is not limited to one.For example under the situation of the descriptive information that each works is provided one by one a plurality of language of foundation, in LED ligthing paraphernalia 131, select to send by light corresponding to a plurality of descriptive informations of the works 132 that throw light on.Then, a plurality of descriptive informations of sending by light are separated respectively and demodulation by optical terminus 133 sides, getting final product from wherein selecting descriptive information according to the specified language of appreciator to be prompted to the appreciator.Perhaps can also constitute adult's descriptive information of usefulness and the descriptive information that the juvenile uses etc., works 132 are sent from same LED ligthing paraphernalia 131 a plurality of descriptive informations by light.In addition, descriptive information is not limited to Word message, for example both can be that acoustic information also can be image or animation etc.In addition, can also be with they suit the combination information.
Fig. 6 is the key diagram of the 2nd application examples of the application's the 1st invention.Among the figure, the 141st, the LED ligthing paraphernalia, the 142, the 143rd, the seat, the 144th, be subjected to optical terminus.The 2nd application examples, expression is to the example of the broadcast system of aviation machine or suitable the application's the 1st invention such as electric car, bus.In example shown in Figure 6, each seat is provided with LED ligthing paraphernalia 141 one by one, and carries out the illumination at seat separately.With its while, will utilize light to send by the information that power line 103 is sent here.In addition, the back side at seat 142 forwardly is being provided with and is being subjected to optical terminus 144, and the passenger who is seated at seat 143 can be with reference to the picture that is subjected to optical terminus 144.By accepted by optical terminus 144, utilize information that this light sends from the light of LED ligthing paraphernalia 141 irradiation by obtained by optical terminus 144.The passenger can be subjected to optical terminus 144 to select desired information to carry out audiovisual by operation.
Particularly, in comprising the aviation machine of spaceship etc., so owing to worry to avoid in machine, using electric wave to the influence of instrument etc.But if light does not then have the influence to instrument etc., in addition not to the influence of human body yet.For this reason, as shown in Figure 6 just can be by the wireless dispensing of carrying out information.In addition, the selection of information can also be carried out by optical terminus 144 1 sides except carrying out with LED ligthing paraphernalia 141.
In addition, in aviation machine or electric car, bus etc., use direct current mostly as the electric power that is used to throw light on.Thereby, in Fig. 1 or formation shown in Figure 3, just do not need to be provided with AC/DC transformation component 111.For example band pass filter 112 or stack portion 114 etc. also do not need under the situation of utilizing light to send by the full detail that power line 103 is sent here, as long as the electric power of the waveform of the overlapping information driving LED group that remains untouched just can utilize light to send information by what supply with from power line 103.
More than, here just the broadcast system of the application's the 1st invention has been represented two application examples.But be not limited to these application examples, go for coming all purposes of distribution information by light.For example except in general office etc. also with the delivery system of doing the personal computer on the desktop, also can in factory, be used for to the message transmission of each engineering etc.And then, can also carry out the dispensing of television set in the family or radio receiver broadcasting, also can carry out audiovisual in room arbitrarily by portable display.In the case, also can constitute the selection portion that to be equivalent to tuner and be arranged in the LED ligthing paraphernalia, carry out channel selection by the selection portion in the LED ligthing paraphernalia being controlled with TV set controller etc.In addition, can also constitute for example in sports ground that moves or program meeting-place etc., the various information of relevant ongoing motion or program or the information in other meeting-place etc. are overlapped in illumination light send, portable terminal device that has with spectators etc. is accepted to obtain information.
Like this,, just can intactly utilize the equipment that is used to throw light on, by light most information of providing and delivering according to the application the 1st invention.At this moment, do not need to be provided with separately as in the past dispensing device, do not need to lay again telecommunication cable etc. yet.Thereby, just can low-cost carry out constructing of broadcast system.In addition, do not have that eye-safe etc. can not be restricted in addition yet, and can construct safe broadcast system the influence of human body in the application at aviation machine etc. as infrared ray as electric wave yet.
＜the 2 invention 〉
Secondly, just the application's the 2nd invention describes.The 2nd invention is to be used for realizing two-way communication by light, is to utilize illumination light on its unidirectional (down link) at least.
As once illustrating in above-mentioned the 1st invention, utilize the communication of illumination light, transmit at the signal from lighting device to portable terminal (below, be referred to as down link) in, owing to huge electric power can be used in communication, so have excellent characteristic.But illuminating light communication in the past only is the unidirectional of down link, is then discussed as yet about the signal from portable terminal to lighting device transmission (below, be referred to as up link).Carrying out under the situation of the general communication of broadcasting, need between communication equipment, carry out exchanging with the various data headed by the exchange of the control signal that is used to carry out handing-over such as ACK or NACK.For this reason, up link is extremely important.
Fig. 7 is the summary pie graph of the 1st execution mode of expression the application the 2nd invention.Among the figure, the 201st, illumination side communicator, the 202nd, end side communicator, the 211st, modulation portion, the 212nd, illumination light source, the 213rd, light accepting part, the 214th, filter, the 221st, light accepting part, the 222nd, illuminating part, the 223rd, handling part.Illumination around illumination side communicator 201 is used to as ligthing paraphernalia has illumination light source 212 luminous and that throw light on.Though establish light source here is LED, is not limited to this certainly, also can utilize LD or other answer speeds light-emitting component faster.
And then in illumination side communicator 201, have modulation portion 211 and light accepting part 213 as the formation that is used to carry out illuminating light communication.Modulation portion 211 is provided with in order to realize down link, controls the electric power that is used to drive illumination light source 212 based on data to be sent.Thus, the light quantity or the light on and off of illumination light source 212 are controlled, and made based on the light of data after ovennodulation and launch.By in end side communicator 202 described later, accepting this illumination light after ovennodulation, just can carry out transfer of data (down link) from illumination side communicator 201 to end side communicator 202.
Modulation system can be utilized OOK (ON-OFF Keying) or BPSK etc., modulation system arbitrarily.In addition, the LED that light quantity or light on and off are controlled both can be the whole of the illumination light source 212 that disposes in order to throw light on, perhaps also can only utilize a part.In addition, as described above because LED has response characteristics at a high speed, so the variation of light quantity or light on and off can be by people's eyes perception, and feel carry out continuously luminous.Even thereby carrying out transfer of data, illumination light source 212 is also undertaken the task of illumination in addition.
In addition, the data that send by illumination light also can be data that receive from the outside or the data that keep or generate in illumination side communicator 201.In addition, about the data that receive by light accepting part 213, except outputing to the outside, also can be the formation of in illumination side communicator 201, handling.
The control circuit etc. that illuminating part 222 comprises light source such as LED or LD for example and light source carried out drive controlling receives the data to be sent from handling part 223, and based on data the light of back emission after ovennodulation is controlled in the light quantity or the light on and off of light source.Modulation system is any.Luminous in addition light can utilize infrared ray or visible light, ultraviolet light etc.This light modulated is subjected to light to realize up link thus by the light accepting part 213 of above-mentioned illumination side communicator 201.
As described above, in illumination side communicator 201, throw light on every side, modulate this illumination light based on data simultaneously, send data by illumination light thus by 212 pairs of illumination light sources.Light accepting part 221 by end side communicator 202 receives this illumination light, just can receive the data that send from illumination side communicator 201 thus.Carry out down link like this.In addition, in end side communicator 202, send light modulated to send data from illuminating part 222 based on data.By accepting this light modulated by the light accepting part 213 of illumination side communicator 201, the data that send from end side communicator 202 are just received illumination side communicator 201.Carry out up link like this.So, down link, up link all can communicate by light, just can realize utilizing the two-way communication of light.
For example end side communicator 202 is terminal installation movably, and for example node personal computer or PDA, portable phone etc., portable terminal installation do not need stube cable etc.Particularly in PDA that is with camera or portable phone etc., this camera can be utilized as light accepting part 221.In addition, utilize environment, for example, in hospital or the train, also can utilize in aviation machine, spaceship, leader's the user environment of living etc., also do not need permission etc. what the communication that utilizes electric wave was restricted.Certainly, can under general office or shop, family, communal facility etc., various environment, utilize.In addition, be not limited to indoorly, for example also can be used for spectacular sign or advertising lighting, perhaps in traffic system, be used between car and the car communicate by letter or the road on facility and car between the utilization under the various purposes such as communicate by letter.
And then, because light wavelength is shorter, so can carry out communication very at a high speed more than electric wave.And then generally speaking ligthing paraphernalia extensively is provided with, and also can throw light on certainly in utilizing the environment of terminal installation in addition.Because can utilize this ligthing paraphernalia that illumination side communicator 201 is set communicates, also can reduce very much so cost is set.
In addition, can be under the environment that as office etc., disposes a plurality of ligthing paraphernalias with separately ligthing paraphernalia as illumination side communicator 201, to dispose a plurality of illumination side communicators 201.In the case, can in a plurality of illumination side communicators 201, accept luminous light from 1 station terminal side communicator 202.By in a plurality of illumination side communicators 201, being subjected to light that communication quality is improved like this.In addition, even for example by waiting shade is taking place because of the people, can't be subjected to 1 illumination side communicator 201 also can be by the problem of shade is solved by light in other illumination side communicators 201 under the situation of light.
Secondly, the some main variation in should the 1st execution mode describes.Fig. 8 is the key diagram of the variation in the light accepting part 213 of illumination side communicator 201.Among the figure, the 231st, dimension sensor, the 232nd, lens.Can constitute and use the light accepting part 213 of dimension sensor 231 as illumination side communicator 201, scioptics 232 make its roughly imaging on sensitive surface.In this formation, for example the luminous light from end side communicator 202 carries out imaging at the sensitive surface of dimension sensor 231, accepts luminous light from end side communicator 202 by a part of light receiving unit among the most light receiving units that are arranged at dimension sensor 231.At this moment, because other light receiving units are accepted surround lighting, so, can carry out high-quality communication by using it just can remove background noise etc.
In addition, for example in the light area, exist under a plurality of end side communicator 202,202 ' the situation, as shown in Figure 8 in dimension sensor 231 from separately end side communicator 202,202 ' luminous photoimaging in different positions.For this reason, just can receive side by side from end side communicator 202 separately, 202 ' data.Certainly, like this too for the situation that has the end side communicator more than 3.
And then, in the environment that many illumination side communicators 201 are set, can accept luminous light by the dimension sensor 231 that is arranged at illumination side communicator 201 separately from separately end side communicator 202,202 '.In the case, can communication quality be improved by the same fixed of luminous point that be subjected to that position etc. carries out in separately the dimension sensor 231 that be provided with of light receiving position on the dimension sensor 231 and illumination side communicator 201.
Fig. 9 is the key diagram of the variation in the illuminating part 222 of end side communicator 202.Among the figure, the 241st, tracking portion, the 242nd, led light source, the 243rd, minute surface, the 244th, lens.In basic comprising shown in Figure 7, using under the situation of led light source 242 as the light source of the illuminating part 222 of end side communicator 202, luminous light will be dispersed, the light quantity of the hard to bear light of energy will tail off in illumination side communicator 201.In example shown in Figure 9, light beam is dispersed, drawn in to expression for what prevent this luminous light, and the example of minute surface 243 and lens 244 is set.By being set, this optical system just can carry out excellent communications with the luminous optical efficiency of led light source 242 well towards illumination side communicator 201.Certainly, use the sharp-pointed LD of directive property etc. as the situation of light source under minute surface 243 or lens 244 etc. just do not need.
In addition, drawing like this light beam in or using under the situation of LD as light source, will communication quality to take place low if luminous light does not correctly shine the light accepting part 213 of illumination side communicator 201, the state of affairs that perhaps can't communicate by letter and so on.For this reason in example shown in Figure 9, be provided with and be used for the tracking portion 241 of light beam towards the light accepting part 213 of illumination side communicator 201.Tracking portion 241 is except the formation of the movable agency of direction that available manual change light beam is set, can also adopt and utilize illumination light etc. automatically or according to the formation of moving, all formations such as formation of perhaps utilizing down link to control from illumination side communicator 201 from the control of terminal installation body.
More than, be illustrated with regard to each one of the variation in the illuminating part 222 of variation in the light accepting part 213 of illumination side communicator 201 and end side communicator 202.The application's the 2nd invention is not limited to these examples.Formation for example shown in Figure 8 also can be applicable to the light accepting part of end side communicator 202.Thus, just can send different data side by side by illumination light, in end side communicator 202, they be separated and receive from a plurality of illumination side communicators.
In addition, except the data wire that uses special use transmits, can also utilize the power line of supplying with the electric power that is used to throw light on, make data be overlapped in power waveform and transmit from the data of illumination side communicator 201 transmissions and the data that received.Certainly, need not superfluous words except also carrying out all distortion them.
Figure 10 is the summary pie graph of the 2nd execution mode of expression the application the 2nd invention.Among the figure, the part identical with Fig. 7 added identical symbol, and also the repetitive description thereof will be omitted.The 224th, reflection modulation portion.In the above-described first embodiment, expression is provided with illuminating part 222 for up link on end side communicator 202, carry out luminous example in end side communicator 202.With respect to this, in the 2nd execution mode, expression is remained untouched and is used illumination light used in down link, uses catoptrical formation in up link.Illumination light is very large electric power as described above, by using it for up link, just can communicate more reliably.In addition, owing to need illuminating part 222 be set,, also can go far towards province's electrification so can suppress the power consumption of end side communicator 202 significantly at end side communicator 202.In addition, because the formation of illumination side communicator 201 is same with above-mentioned the 1st execution mode and variation thereof, so omit explanation here, the while diagram of modulation portion 211 is also omitted.In addition, also same about the light accepting part 221 of end side communicator 202 with above-mentioned the 1st execution mode and variation thereof etc.
Formation as be used for using illumination light on up link is provided with reflection modulation portion 224 in end side communicator 202.224 pairs of illumination light of reflection modulation portion reflect, and send the reverberation of data after ovennodulation that sends according to by up link simultaneously.
Figure 11 is the key diagram that has utilized a configuration example of mirror as reflection modulation portion 224.Among the figure, the 251st, mirror, the 252nd, optical gate, the 253rd, containment wall, the 254th, tracking portion.As the device of indirect illumination light, use mirror 251 merely, be provided with variation shown in Figure 9 in the same 254 pairs of reflection directions of tracking portion of tracking portion 241 control and get final product.In addition, make Optic gate 252 here as modulator approach, can be by carrying out to seeing through/interdict to the incident light of mirror 251 and from the reverberation of mirror 251.For example use liquid crystal photic gate as optical gate 252, can carry out catoptrical switch control to modulate by the orientation of liquid crystal being controlled based on data.Can certainly be other modulator approaches, for example can also only the reflection direction of minute surface be changed and modulate based on data.That is, owing to change by the reflection direction that makes minute surface, the light quantity that incides the light accepting part 213 of illumination side communicator 201 changes, so just data can be taken out if detect this variation.In the case, can also for example tracking portion 254 be also used as modulating device.
In example shown in Figure 11, around mirror 251, dispose containment wall 253 in addition.This is to reflect by mirror 251 from the light of the light source beyond the illumination side communicator that communicates 201 in order to prevent, the eyes that enter into the user become and dazzle and be provided with.The illumination light source 212 of illumination side communicator 201 and light accepting part 213 near and under the situation about being disposed, only the light from illumination light source 212 is reflected so that it returns light accepting part 213 and get final product, so other reflection of light does not just need.Be provided with containment wall 253 in order to prevent so unwanted reflection.Also can also be made as minute surface by the inner face with this containment wall 253 increases reflection light quantity.Certainly, containment wall 253 also can be set constitutes.
In addition, except this unit shown in Figure 11 is used separately, can also dispose and a plurality ofly constitute.
In reflection modulation portion 224,, can utilize CCR (Corner Cube Reflector) as the device of indirect illumination light.Figure 12 is the key diagram of CCR summary.CCR has makes 3 inside orthogonal shapes of reflecting surface.For example as shown in Figure 12, orthogonal 3 inner faces on 1 summit by will forming cube or Nogata body are made as reflecting surface and obtain.
As the feature of this CCR, have towards the radiative characteristic of the incident direction of light.Thereby, if illumination light is just come indirect illumination light towards the light source of this illumination light by incident.Though in the application's the 2nd invention illumination light is used for down link, by being reflected in illumination light used in this down link, just can remain untouched also is used in up link.Particularly owing to reflect, so just can accept reverberation as long as light accepting part 213 is set near the lighting source of illumination side communicator 201 towards lighting source.In addition, since directive property better, stronger reverberation incides the light accepting part 213 of illumination side communicator 201, so be difficult to be subjected to the advantage of the influence that causes because of Zhou Bianguang in addition.In addition, illumination side communicator 201 is set at arbitrarily that the position gets final product, otherwise even end side communicator 202 is present in position arbitrarily, reverberation also reflects towards illumination side communicator 201.
Figure 13 is a routine key diagram that has utilized the situation modulated method of CCR.Among the figure, the 261st, CCR, the 262nd, optical gate, the 263rd, dielectric, the 264th, adjuster.Can illumination light be reflected towards illumination side communicator 201 by CCR as described above, expression is used for this reverberation has been carried out according to data the Several Methods of modulation.Expression is configured in the example that modulate the CCR front with optical gate 262 in Figure 13 (A).Can constitute with the liquid crystal photic gate that has for example used liquid crystal indicator as optical gate 262.Liquid crystal photic gate makes the change in orientation of liquid crystal according to adding of voltage, with seeing through and blocking of switches light.Use this liquid crystal photic gate, for example if the control liquid crystal photic gate so that light transmission, then is incident to CCR261 from the illumination light of illumination side communicator 201 as described above, reverberation is just towards illumination side communicator 201.Otherwise, then all just become and to accept reverberation by the light accepting part 213 of blocking, illumination side communicator 201 to the incident light of CCR261 and reverberation if the control liquid crystal photic gate is so that light blocking.So just can carry out catoptrical switch control by the liquid crystal aligning of control liquid crystal photic gate.Just the reverberation after ovennodulation can be delivered to illumination side communicator 201 by carry out this switch control according to data.Certainly exist variously as liquid crystal, can suit to use these all liquid crystal.For example can also to light see through and reflection is switched.In addition, though used liquid crystal photic gate as optical gate 262 in this example, in addition so long as can be controlled to illumination light and the catoptrical shutter mechanism of going into bright dipping of CCR261, then how constituting optical gate can both utilize.
In the example shown in Figure 13 (B), by the minute surface that constitutes CCR261 partly or entirely with dielectric 263 near (λ/3) configuration, make the amount decay of the total reflection of inner face.Can make dielectric change in location by data-driven, control the reflection light quantity among the CCR261, and can will deliver to illumination side communicator 201 through ovennodulation back reflection light thus.In addition, this mode has been utilized the coherence of light, is limited to utilize LD as situation of the light source of illumination side communicator 201 etc.
Example shown in Figure 13 (C), at 1 installation adjuster 264 of the minute surface that constitutes CCR261, data-driven changes minute surface.For example the angle by changing minute surface or the reflection of light angle between each minute surface among the crooked CCR261 of making of minute surface is changed can be destroyed reverberation and turn back to the such relation of incident direction of light.Can the reverberation after ovennodulation be delivered to illumination side communicator 201 by carry out this control according to data.Except driving, can also be suitable for all formations such as distortion of utilization as adjuster 264 by means of piezoelectric element etc. by means of microcomputer of machinery etc.
Figure 14 is the key diagram to the incident light of reflection modulation portion 224 and the catoptrical example after ovennodulation.Incide the illumination light after ovennodulation of only launching of reflection modulation portion 224 as described above from illumination side communicator 201.Thereby, according to controlling light quantity or light on and off by the data that down link sent.If the data when former state reflects then on reverberation also overlapping down link with CCR261 remain unchanged.But, almost no problem under the slower situation of the data transmission bauds of comparing up link with the data transmission bauds of utilizing down link.For example Figure 14 (A) if under the situation that the light quantity of the illumination light that is shown in changes at a high speed the data transmission bauds of up link slow in 1 transfer of data the light quantity of illumination light will change several times.For example modulating as illustrated in fig. 13, with CCR261 incident light is being carried out reflex time, the average light quantity of the part that brightens that exists in 1 transfer of data and the part of deepening just is subjected to light at the light accepting part 213 of illumination side communicator 201.With respect to this not with CCR261 under the situation that light source reflects, even average light quantity all can't be subjected to light at the light accepting part 213 of illumination side communicator 201.Thereby, also can transmit data well even the illumination light that the data redundancy of down link is constant is used for up link.
Otherwise when the data transmission bauds degree of the data transmission bauds of utilizing down link and up link is quite or below it, under the situation of the time that does not exist illumination light to be interdicted fully, the reverberation of illumination light can be used for up link.The expression down link situation identical in Figure 14 (B) with the data transmission bauds of up link.In this example,, utilize subcarrier BPSK as the data-modulated mode of down link.In the case, because in the transmission time of 1 data, the illumination light quantity can not be 0 continuously, so even be used for the modulation that utilizes switch of up link also can come receiving uplink at the light accepting part 213 of illumination side communicator 201 according to the variation of light income data.
Like this, even illumination light is modulated, by reflecting this illumination light after ovennodulation, and modulate the up link that also can realize from end side communicator 202 to illumination side communicator 201 according to the data of up link.Illumination light is high-power, also has bigger electric power about its reverberation.Thereby also can carry out high-quality communication about up link.In addition, in utilizing the formation of CCR261,, can not realize up link with easy formation so do not need fully to follow the tracks of because reverberation turns back to the light source of incident light.And then, do not need in addition to obtain such advantage synchronously with down link.And then, utilizing under the situation of CCR261, because of the situation rareness that irregular reference etc. makes light enter user's eyes, can feel such advantage of dazzling in addition hardly.
Figure 15 is the routine key diagram that utilizes form that CCR has been carried out the illuminating light communication device that carries as reflection modulation portion 224, and Figure 16 is the key diagram of an example of the synthetic method of the received signal in identical a plurality of illumination side communicators.Among the figure, the 271st, photo detector, the 272nd, postpone correction portion, the 273rd, synthetic portion, the 274th, demodulation section.CCR has the characteristic that reverberation is returned towards light source as described above, and this specific character is like this too under the situation of a plurality of direction incidents at light.For example as shown in Figure 15 at a plurality of illumination side communicators 201,201 ', 201 " send illumination light respectively; when inciding end side communicator 202; by being arranged at the CCR of end side communicator 202; illumination light from illumination side communicator 201 reflects towards illumination side communicator 201, equally from the illumination light of illumination side communicator 201 ' towards illumination side communicator 201 ' reflect, from illumination side communicator 201 " illumination light towards illumination side communicator 201 " reflect.Thus, from the data of the up link of end side communicator 202 just at a plurality of illumination side communicators 201,201 ', 201 " in received.
At a plurality of illumination side communicators 201,201 ', 201 " in, just can receive data reliably by the synthetic electric signal that obtained by light.The example that the circuit of this moment shown in Figure 16 constitutes.Be arranged at illumination side communicator 201,201 ', 201 separately " light accepting part 213 in photo detector 271, the light of being accepted is transformed into electric signal.In the future since then the electric signal of photo detector 271 with to separately illumination side communicator 201,201 ', 201 " after the retardation set one by one postponing correction portion 272 and revise, synthesize in synthetic portion 273.Synthetic except for example merely carrying out add operation, can also obtain average electric power or be weighted the back synthetic.Power is heavy more just is made as big more weight and gets final product for signal strength signal intensity.Carry out demodulation by the electric signal after will synthesizing at demodulation section and just can obtain the data of sending here from end side communicator 202.
Like this, owing to can send the data of up link to a plurality of illumination side communicators, even, therefore just can communicate by light no problemly so for example take place by waiting shade that makes light not arrive an illumination side communicator because of the people.At this moment, the mechanism etc. that follows the tracks of CCR does not just need, and can solve the shade of hindering as optical communication with simple formation.In addition, though figure 15 illustrates 3 illumination side communicators, even be not limited to this like this too more than 2 or 4.
Though be illustrated with regard to a CCR in the above description, disposing under the situation that a plurality of CCR constitute so too, for example can 2 dimension shapes be configured and constitute.Under the situation that has disposed a plurality of CCR, as long as shown in Figure 13 the formation that is used to modulate is arranged on CCR261 separately, all similarly controlling and just can making itself and CCR is that one situation is similarly moved.Under the situation of passing through the formation that optical gate 262 modulates shown in for example Figure 13 (A), can also constitute common optical gate 262 is set on a plurality of CCR.
Disposing under the situation of a plurality of CCR like this, can also modulate control one by one to one or more CCR.If utilize such formation, carry out just becoming possibility from the data transmission arranged side by side of end side communicator 202.Figure 17 is the key diagram of the configuration example that can send side by side in the reflection modulation portion 224 of end side communicator 202.Among the figure, the 281st, CCR array, the 282nd, lens.CCR array 281 has disposed a plurality of CCR, can modulate control ground one by one by one or more CCR and constitute.About each CCR in the CCR array 281, if the modulation control of optical gate 262 of having carried out for example utilization shown in Figure 13 (A) is then disposed controllable optical gate 262 one by one to one or more CCR and got final product.In addition, if the formation that the minute surface of CCR is changed then can be provided with same formation to CCR separately, its control is carried out one by one to one or more CCR.
Incident (outgoing) side at CCR array 281 is provided with lens 282, adjust so that the illumination light from illumination side communicator 201,201 ' roughly image near the minute surface of CCR or its.In this formation, for example only incide among the CCR array 281 separately a part of CCR from the luminous light of illumination side communicator 201,201 '.Then, just illumination side communicator 201 is returned reverberation according to the characteristic of CCR from a part of CCR of the illumination light institute incident of illumination side communicator 201, just illumination side communicator 201 ' is returned reverberation from a part of CCR of the illumination light institute incident of illumination side communicator 201 '.At this moment, about the CCR of separately illumination light institute incident, just can be as above-mentioned Figure 15 is illustrated identical data be sent to a plurality of illumination side communicators 201,201 ' as long as similarly modulate control.
Here, the CCR about separately illumination light institute incident can also modulate control based on different data respectively.Promptly, can control so that about from the illumination light of illumination side communicator 201 by incident, illumination side communicator 201 is returned catoptrical CCR modulates control based on the 1st data, about from the illumination light of illumination side communicator 201 ' by incident, illumination side communicator 201 ' returned catoptrical CCR then modulate control based on the 2nd data different with the 1st data.Thus, just can send the 1st data, illumination side communicator 201 ' is sent the 2nd data illumination side communicator 201.These data can walk abreast and send, and can transmit side by side.
In addition, about determining of the CCR of incident illumination light, except being predetermined, can also constitute with CCR and dispose simple photo detector, perhaps on the minute surface of CCR, make up photo detector, perhaps constitute, to determine the position of illumination side communicator as the light accepting part 221 usefulness dimension sensors of end side communicator 202 and lens combination etc.Certainly, adopt additive method also harmless.
More than, represented that as the 2nd execution mode indirect illumination light is used for the example of up link.In this 2nd execution mode, also same with above-mentioned the 1st execution mode, illumination side communicator 201 can similarly be provided with the general ligthing paraphernalia that utilizes, about end side communicator 202 node personal computers or portable terminal installation such as PDA, portable phone for well.In addition, about purposes in general office or shop, family, communal facility so utilize that the communication of electric wave is restricted utilize environment, for example, in hospital or the train, aviation machine, spaceship, leader's the user environment of living etc. also can utilize, and then be not limited to indoor, for example also can be used for spectacular sign or advertising lighting, perhaps in traffic system, be used between car inter-vehicle communication or bus the utilization under communication etc., the various purposes.
In addition, in this 2nd execution mode, also can carry out the various distortion same with above-mentioned the 1st execution mode.Can be suitable for the light accepting part 213 in the illumination side communicator 201 shown in Figure 8 formation, and end side communicator 202 shown in Figure 9 in the formation of illuminating part 222, also can utilize power line communication about data that send from illumination side communicator 201 and the data that received.Certainly, need not superfluous words and can also carry out all distortion in addition to these.
Like this, though in illuminating light communication in the past only down link use up and carry out, according to the application's the 2nd invention, up link also can be undertaken by light, utilizes the two-way communication of light just to become possibility.
In addition, can also indirect illumination light to be used for up link, in the case, can utilize powerful illumination light to carry out high-quality communication.And then realize utilizing the up link of light with simple formation by utilizing CCR not need to follow the tracks of.
＜the 3 invention 〉
Secondly, just the application's the 3rd invention describes.Under the situation of the communication of using illumination light, exist if the problem that then can't communicate and so on is extinguished in illumination.The 3rd the invention in, even the expression and with infrared communication so that the formation that when turning off the light, also can communicate.At first, about used illuminating light-emitting diode (LED:Light Emitting Diode) in this application's the 3rd invention, represent general formation.
Figure 25 is the pie graph of an example of general White LED.Among the figure, the 331, the 341st, LED element, the 332nd, red light-emitting component portion, the 333rd, green light-emitting component portion, the 334th, blue light-emitting component portion, the 342nd, light-emitting component portion, the 343rd, fluorescer.One example of the White LED shown in Figure 25 (A) is illustrated in the red light-emitting component portion 332 that sends red light of having disposed side by side in the LED element 331, send green light green light-emitting component portion 333, send the formation of the blue light-emitting component portion 334 of blue light.The mixed back of light of the red, green, blue that sends from separately light-emitting component portion is looked and is recognized as white light.
In an example of the White LED shown in Figure 25 (B), in LED element 341, be provided with the light-emitting component portion 342 that indigo plant or ultraviolet are used in addition, and around this light-emitting component portion 342, be provided with fluorescer 343.This LED element 341 is same with fluorescent lamp, sends white light if blue light that light-emitting component portion 342 is radiated or ultraviolet lighting are mapped to 343 fluorescers 343 of fluorescer.White light is just launched thus.
In a such LED element, so the illumination light-emitting amount is less to be utilized as having compiled a plurality of led array usually in order to be used for now.Sometimes also led array is referred to as LED in the explanation afterwards.This led array for example be used in a part traffic signals or, the rear portion lamp of automobile, desk lamp, footlights etc.LED compares with lighting sources in the past such as white heat bulb or fluorescent lamps, has the excellent characteristic of long-life, small-sized, low power consumption and so on, is expected to be regarded as lighting source in the future.
In addition, so do not need very fast and so on the characteristic of answer speed warm-up time because light-emitting component such as LED has.Be conceived to this answer speed fast, and can electrical control, the research that overlapped signal makes it to have signal transfer functions on the illumination light of having utilized LED is carried out now.
Carrying out on ceiling or metope etc. ligthing paraphernalia being set extensively under the lighting condition, perhaps by building electric pole etc. from higher position irradiates light, spreading all over certain zone, the situation of shadow can not occur more.General in comprising the radio communication of light, signal strength signal intensity is reduced in the shade that causes fault in the communication in the shade of object just becomes problem.But, as described above since illumination to be configured to can not to occur the situation of shadow more, just mean and can communicate with not producing shade so illumination is used in communication.In addition, owing to can utilize bigger illuminating power, also uprise such advantage so also have the quality of communication.
But,, extinguish the problem that then can't utilize and so on so exist if make to throw light on because this illuminating light communication used illumination light.Certainly,, do not obtain the situation of user's understanding and exist yet carrying out bright lamp when not required from province's viewpoint of energy though carry out bright lamp when not required yet and get final product in illumination, for example also more in the situation of the lamps that do not work such as night.And exist if turn off the light and just can not communicate, or not the time or the night or the problem that can not communicate during at the use projector etc. and so on.
On the other hand, be widely used from infrared communication in the past, the standardization of IrDA etc. is carried out.In infrared communication, so because worry eye-safe etc. can not be carried out powerful communication to the influence of human body.In addition, have because of the characteristic of light if the barrier that has a user etc. then being easy to of reducing of communication quality be subjected to the feature of the influence and so on of shade.Since such reason, and have the narrow situation that can not stablize utilization of scope of utilizing.
At such problem, even the formation by as described below and also available communicator such as realize when turning off the light with illumination light and infrared light.
Figure 18 is the block diagram of the 1st execution mode of the illuminating light communication device of expression the application the 3rd invention.Among the figure, the 311st, modulating sections, 312～314th, switch, the 315th, power divider, the 316th, Lighting Division, the 317th, Department of Communication Force, the 321st, information terminal, the 322nd, light accepting part.In Lighting Division 316, be provided with and be used for the light source that throws light on by luminous.As White LED element etc., utilize semiconductor light-emitting elements as light source, can carry out illuminating light communication by the control of light on and off or light quantity with high-speed responsive characteristic.Department of Communication Force 317 can send data by optical communication mode, for example infrared communication beyond the illumination light in addition.In addition, Lighting Division 316 can be formed in the components identical with Department of Communication Force 317 as described later.Certainly, also can be used as different devices constitutes.
Modulating sections 311 and power divider 315 are corresponding to the modulating device of the application's the 3rd invention, and data-driven is controlled with modulate illumination light the flicker or the light quantity of Lighting Division 316.In this example, modulating sections 311 modulation system is according to the rules modulated the data of being imported, and will the data after ovennodulation be overlapped in power waveform and inputs to power divider 315 via switch 313, is input to Department of Communication Force 317 via switch 314 in addition.Thus, carry out controlling or fader control for the ON/OFF (connection/cut-out) of Lighting Division 316 and Department of Communication Force 317.
Switch 312～314 constitutes the switching device shifter of the application's the 3rd invention, according to the ON/OFF (connection/cut-out) that switches switch separately for the bright lamp of lighting device and the indication of turning off the light etc. from the indication of outside.Switch 312 switches the ON/OFF that supplies with for the electric power of power divider 315, to the bright lamp of illumination and turn off the light and switch.Whether whether switch 313 switchings, switched and utilized this illumination light to send data (illuminating light communication) when throwing light in Lighting Division 316 to the data of power divider 315 supplies after ovennodulation.Whether switch 314 switchings are to the data of Department of Communication Force 317 supplies after ovennodulation.In addition, switch 312 and switch 313 are some to be ON, and perhaps both sides become OFF.
Figure 19 is the key diagram that utilizes an example of the action that the connection of switch 312～314 cuts off.Cut off in the connection by above-mentioned switch 312～314, switch 312 is connected, and under the situation that switch 313 cuts off, utilizes the communication of Department of Communication Force 317 if use Lighting Division 316 to throw light on as Figure 19 shown in 1. while switch 314 is connected.Though in Figure 19, carry out infrared communication as the communication that utilizes Department of Communication Force 317 and be recited as " infrared communication " in addition, utilize the communication of Department of Communication Force 317 to be not limited to this.If switch cuts off under the identical situation of the setting of switch 312,313, then only throwing light on shown in 2. as Figure 19 does not communicate.Illumination light in the case is not used in communication.Cut off at switch 312, under the situation that switch 313 is connected, if switch 314 is connected, then utilize the illumination of Lighting Division 316 to communicate by this illumination light as Figure 19 shown in 3. on one side, the while is also carried out the communication of identical data in Department of Communication Force 317.If switch 314 cuts off under same case, then the illumination that utilizes Lighting Division 316 shown in 4. as Figure 19 with utilize communicating by letter of this illumination light.At switch 312, the situation that switch 313 all cuts off is next does not use Lighting Division 316, utilizes the communication of Department of Communication Force 317 shown in 5. as Figure 19 if switch 314 is connected, if switch 314 cuts off as Figure 19 6. shown in illumination and communication all do not carry out.
For example under the situation about when needs throw light on, communicating if connect switch 312 like that shown in 1. as Figure 19, cut off switch 313, connect switch 314, or 3., 4. cut off switch 312 shown in like that as Figure 19, connect switch 313, switch on or off 314 on switch and can carry out by means of the communication of Department of Communication Force 317 or used communication by means of the illumination light of Lighting Division 316.In addition, in the unwanted situation of illumination, by making switch 312 as Figure 19 like that shown in 5., switch 313 all cuts off, makes switch 314 to connect the communication that just can carry out by means of Department of Communication Force 317.
Like this, when utilizing illumination, just can utilize the communication of illumination light, even under the situation that illumination is extinguished, also can communicate simultaneously.Adopting under the situation of infrared communication as the communication mode of Department of Communication Force 317 as described above, even so, thereby under the state that extinguished of illumination, can communicate because infrared light can not seen to communicate by eyes can not perceive brightly concerning people yet.
Figure 20 is the ideograph of an example of illumination component of the application's the 3rd invention of the expression illuminating light communication device that is suitable for the application the 3rd invention, and Figure 21 is the key diagram to the suitable example of the illuminating light communication device of the application's the 3rd invention of an example of the illumination component of the application's the 3rd invention.Among the figure, the part identical with Figure 25 added identical symbol, and also the repetitive description thereof will be omitted.The 335th, infrared light light-emitting component portion.General illuminating LED also only sends visible light certainly like that as shown in figure 25, and does not send infrared light., carrying out under the situation of infrared communication with Department of Communication Force 317 as described above for this reason, the LED of infrared light need be set separately as Department of Communication Force 317.Certainly, the used LED of Lighting Division 316 and Department of Communication Force 317 can also be set respectively, but both also can have similar structure, constitute integratedly.The example of one shown in Figure 20.
Example shown in Figure 20 is provided with infrared light light-emitting component portion 335 sending red, green, blue 3 coloured light on the LED as white light like that shown in Figure 25 (A).Almost do not have to change with general LED even the size of infrared light light-emitting component portion 335 encapsulation is set like this, width is for number mm, highly also for counting the mm degree.
Such illumination component is being applicable under the situation of illuminating light communication device, as shown in figure 21 with red light-emitting component portion 332, green light-emitting component portion 333, the distribution of light-emitting component portion 334 is connected to that the electric power of power divider 315 when the illumination is supplied with and the electric power accepted after ovennodulation during illuminating light communication is supplied with.In addition, infrared light light-emitting component portion 335 can constitute via switch 314 and be connected to modulating sections 311, modulates driving by modulating sections 311 under the situation that switch 314 is cutting out.In addition, common electrode is grounded with modulating sections 311 or power divider 315 etc. and gets final product.
In common illumination, make red light-emitting component portion 332, green light-emitting component portion 333, blue light-emitting component portion 334 luminous, visually send the illumination light of white by the light of 3 looks.Just can carry out illuminating light communication by modulating this illumination light at high speed.In addition, though infrared light light-emitting component portion 335 is luminous visually also to be cannot see even if make, by luminous light being modulated at high speed the radio communication that just can utilize infrared light.
By diverter switch 312～314 as described above just can suit to switch to red light-emitting component portion 332, green light-emitting component portion 333, blue light-emitting component portion 334 has carried out the illuminating light communication of modulation at high speed and the infrared communication that infrared light light-emitting component portion 335 is modulated at high speed utilizes.Red light-emitting component portion 332, green light-emitting component portion 333, blue light-emitting component portion were modulated at high speed with transmission information 334 luminous whiles.Thus, owing to the desired luminous power of illumination also can be used in communication, so can carry out the high-quality communication of high speed.In addition, do not need but the situation of needs of communicate by letter is next makes it send infrared light to communicate by modulating driving infrared light light-emitting component portion 335 in illumination.So visually cannot see and under the state of turning off the light, to communicate owing to infrared light in the case.In addition, nobody's situation is more when turning off the light usually, and eye-safe etc. also can alleviate the influence of human body.
Certainly, also can when throwing light on, also modulate driving, utilize the communication of infrared light infrared light light-emitting component portion 335.In the case, usually only receive infrared light at receiver side and get final product, so constitute simplification because not corresponding a plurality of wavelength just can solve to make.
Perhaps, can also be when throwing light on driving be modulated by red light-emitting component portion 332, green light-emitting component portion 333, blue light-emitting component portion 334, and infrared light light-emitting component portion 335 also modulates driving, utilize infrared light to communicate with illumination light.In the case, thus since can utilize whole power can carry out than each above-mentioned mode also at a high speed, high-quality communication.
In addition, in formation shown in Figure 20, because red light-emitting component portion 332, green light-emitting component portion 333, blue light-emitting component portion 334, infrared light light-emitting component portion 335 can independently drive respectively, so if the differentiation wavelength just can send a plurality of information simultaneously.
Figure 22 is the ideograph of other examples of illumination component of the application's the 3rd invention of the expression illuminating light communication device that is suitable for the application the 3rd invention.Figure 23 is the key diagram to the suitable example of the illuminating light communication device of the application's the 3rd invention of other examples of the illumination component of the application the 3rd invention.Among the figure, the part identical with Figure 25 added identical symbol, and also the repetitive description thereof will be omitted.The 344th, infrared light light-emitting component portion.Example shown in Figure 22 is provided with infrared light light-emitting component portion 344 in the LED element 341 of the formation shown in Figure 25 (B).
Such illumination component is being applicable under the situation of illuminating light communication device, as shown in figure 23 the distribution of light-emitting component portion 342 is being connected to that the electric power of power divider 315 when illumination is supplied with and the electric power accepted after ovennodulation during illuminating light communication is supplied with.In addition, infrared light light-emitting component portion 335 can constitute via switch 314 and be connected to modulating sections 311, modulates driving by modulating sections 311 under the situation that switch 314 is cutting out.In addition, common electrode is grounded with modulating sections 311 or power divider 315 etc. and gets final product.
When common illumination, the blue light of light-emitting component portion 342 radiation or ultraviolet light are irradiated to fluorescer 343 and send white light thus.At this moment, just illumination light can be used for communication by light-emitting component portion 342 being modulated at high speed drive.In addition, by driving is modulated by infrared light light-emitting component portion 344, though visually cannot see the radio communication that to carry out by means of infrared light.
Same with example shown in Figure 20, for example under the situation that illumination needs and communication also needs, driving is modulated by light-emitting component portion 342 and come transmission information.Thus, owing to the desired luminous power of illumination also can be used in communication, so can carry out the high-quality communication of high speed.In addition, do not needing to throw light on but make it send infrared light to communicate by infrared light light-emitting component portion 344 being modulated drive under the situation of the needs of communicating by letter.So visually cannot see and under the state of turning off the light, to communicate owing to infrared light in the case.In addition, nobody's situation is more when turning off the light usually, and eye-safe etc. also can alleviate the influence of human body.
Certainly, same with example shown in Figure 20, also can when throwing light on, modulate driving to infrared light light-emitting component portion 344, used the communication of infrared light, perhaps light-emitting component portion 342 and 344 both sides of infrared light light-emitting component portion are modulated driving.In addition, though in formation shown in Figure 22, driven light-emitting element portion 342 and infrared light light-emitting component portion 344 are parallel to send different data can distinguish, but can not send different data one by one according to the wavelength of the red, green, blue of Mingguang City.
Figure 24 is the block diagram of the 2nd execution mode of the illuminating light communication device of expression the application the 3rd invention.Symbol among the figure is identical with Figure 18.In above-mentioned the 1st execution mode, under the situation that the state that is extinguishing illumination communicates, undertaken by the Department of Communication Force 317 that is provided with separately.In this 2nd execution mode, expression is not provided with the example that Department of Communication Force 317 also communicates with Lighting Division 316 when turning off the light.
In this example, for the bright lamp that switches illumination and turn off the light and use switch 312, whether to communicate and use switch 313 in order to switch in addition.
For example under switch 312 and switch 313 pent situations, Lighting Division 316 is modulated with illumination condition, realized illuminating light communication.In addition, under switch 312 quilt openings, switch 313 pent situations, Lighting Division 316 is driven, and make Lighting Division 316 luminous communicating of utmost point short time according to the information that will send according to the modulation signal that utilizes modulating sections 311.If make the luminous of utmost point short time then visually can perception.For this reason, even owing to make it luminous but concerning people's eyes, can regard as and turn off the light actually, so when turning off the light, also can communicate.In addition, be closed at switch 312, switch 313 carried out common illumination under the open situation, switch 312,313 all by open situation next turn off the light and communicate by letter do not carry out yet.
Like this, by controlling but make its utmost point short time luminous according to information when turning off the light, not make Lighting Division 316 continuous bright lamps, just can be with the state of with regard to people's eyes, turning off the light, the communication that utilizes Lighting Division 316 to carry out by means of visible light.
As described above, except the luminous communication that utilizes the utmost point short time, can also make Lighting Division 316 luminous communicating with the more weak luminous intensity of the degree that can communicate by letter.In the case, though turned off the light fully, if even for example also more consideration under the situation that the light quantity of guard lamp degree then also is allowed to when turning off the light.
Like this, according to the application's the 3rd invention, a kind of illuminating light communication device that also can communicate when turning off the light just can be provided, and a kind of illumination component that is suitable for such illuminating light communication device is provided.
Under the situation of lighting apparatus, the situation that also had often utilize in 24 hours, difference according to circumstances, or not the time or have under the situation of sunlight around or turn off the light sometimes when utilizing projector etc.Under these circumstances if only carry out message transmission then because so time illumination also must have problem by bright lamp in information flow with illumination light.In the application the 3rd invention, by when turning off the light, utilizing infrared communication, even perhaps utilize the communication of short time or more weak luminous intensity when turning off the light, also can communicate.
In addition, utilizing under the situation of infrared communication the light-emitting component that the light-emitting component of illuminating light-emitting component and infrared light is accumulated by providing, just can when turning off the light, utilize the communication of infrared light as described above.And then, can be luminous by carrying out from visible light to the incorporate element of ultrared light, can make device constitute miniaturization.That is, can construct utilization and be the different system of infrared communication for illumination, infrared communication by the system of the new compactness of incorporate illumination component rather than illumination.If the change viewpoint, though then just know the wireless messages transmission that has utilized infrared light and the system of irrespectively having constructed of throwing light on from the past.That is, distinguish mutually at ceiling etc. with illumination and be provided with transceiver.For this reason, be difficult to be provided with in the scope of ceiling broadness, because of the influence of shade etc. exists situation about hindering more on utilizing, but by utilizing the illumination component of the application's the 3rd invention, just can be easily that infrared communication system and illuminator is integrated.So also be arranged at broad range easily because illumination is provided with the scope of broadness at ceiling etc. in message transmission, the influence of shade also reduces, and just can stablize the radio communication of utilization by means of infrared light.
＜the 4 invention 〉
At first, just the application's the 4th invention describes.In above-mentioned the 1st to the 3rd invention, the example of having represented to use the illumination light directly sent from ligthing paraphernalia to communicate.In the application's the 4th invention, expression constitutes until the place of using optical fiber to throw light on and communicate by letter, and makes the example that arrives according to the illumination light after the information via modulation.
Figure 32 be in the past use the key diagram of one example of lighting device of optical fiber.Among the figure, the 401st, light source, the 402nd, optical fiber.Use in the past optical fiber 402 ligthing paraphernalia shown in figure 32 from an end incident of optical fiber 402 from the light that light sources 401 such as Halogen lamp LED, LED, laser are radiated, make light be transmitted into the space from the other end.The light utilization of being launched this this is thrown light on.
In this mode and since light from the point-source of light of end of optical fiber 402 and so on send, in addition straightline propagation preferably light radiated, so at the narrow a large amount of light of angle of visual field emission.For this reason, just quite twinkling under the situation of the end of looking at optical fiber 402 with eyes straight.In addition, shortcoming that in addition can't broad range of illumination and so on.For this reason, at the exit end of optical fiber 402 diffuser plate being set makes light diffusion from the end radiation of optical fiber 402, light is radiated and reduces twinkling processing and also carried out in wide to a certain degree scope.
On the other hand, be accompanied by the high-speed communication Progress in technique, used the indoor wireless communication technology of light to be utilized.Particularly utilized ultrared LAN to be not limited to office etc., also become in family etc. and popularize.But infrared ray LAN just needs specially to be provided as at ceiling the transceiver of access point in order to utilize it.In addition if from this access point to there being barrier then generally speaking just can not send reception the terminal.And then because of the influence to human body such as eye-safe needs to suppress power, existence can't be carried out the problem of high-quality communication of high speed and so on.
As solving such problem communication mode, considered to use the communication mode of illumination light, in this application's the 4th invention, represent with regard to the formation of using optical fiber to throw light on and to communicate by letter.
Figure 26 is the concept map of the 1st execution mode of expression the application the 4th invention.Among the figure, the 411st, light source control portion, the 412nd, light source, the 413rd, optical fiber, the 414th, light-scattering body, the 415th, reflecting plate, the 421st, receiver, the 422nd, light accepting part, the 423rd, demodulation section.The light that light source 412 radioluminescences are used has for example used LED or laser diode etc. to have the element of high-speed responsive characteristic.
Light source control portion 411 controls the light on and off or the light quantity of light source 412 according to information to be sent.Light modulated is radiated from light source 412.
Light-scattering body 414 is arranged at the end of optical fiber 413, and conducting is carried out the scattering radiation in the light of optical fiber 413.Can use high-luminance light scattering polymerization light conductor as light-scattering body 414.That high-luminance light scattering polymerization light conductor for example can be used in is that the heterogeneity structure that makes micron order in the sub-polymer of optics forms, high-luminance light scattering light-conducting body (HSOT) polymer constitutes, and becomes the scattering object of high efficiency visible light as ligthing paraphernalia.Using as optical fiber 413 under the situation of POF, because light-scattering body 414 and optical fiber 413 usefulness plastics formation, so can also carry out both integrated.For example except both are made respectively integrated, additive that can also be when adjust making or create conditions etc. and make integratedly.Light-scattering body 414 be shaped as arbitrarily, for example in Figure 26, be made as hemispheric shape therein the heart connecting the end of optical fiber 413.
Reflecting plate 415, the face relative with light-scattering body 414 is made of minute surface, will be from the scattered light on the top of light-scattering body 414 back light scattering object 414 once more, the scattered light from the bottom of light-scattering body 414 is increased.This reflecting plate 415 can also be by forming reflecting surface making on the face of its reflection the coating reflecting material or its evaporation is waited except being provided with other material.In addition, the light-scattering body 414 that imagination is used semi-spherical shape as shown in figure 26 in this example situation of for example throwing light on from indoor ceiling etc.In this case,, do not need to come the radiation of the scattered light of face since then, so reflecting plate 415 is set so that illumination efficiency is improved at the planar section of light-scattering body 414 because the planar section of hemisphere is the ceiling side.But, under situations such as form that does not need to make illumination or the improvement of illumination light rate, this reflecting plate 415 also can be set constitute.
Example with regard to the action in the 1st execution mode of above-mentioned the application's the 4th invention describes.In the application's the 4th invention, under the situation that does not send information, can remain untouched and utilize as lighting device.That is, make the light that is radiated from light source 412 incide optical fiber 413, after optical fiber 413 conductings, be incident to light-scattering body 414.In light-scattering body 414, make from the light of optical fiber 413 incidents and carry out scattering with the radiation scattered light.In addition, incide light-scattering body 414 once more after the light that radiates from the upper plane of semi-spherical shape is reflected by reflecting plate 415 and carry out the scattering radiation.Will be like this by light-scattering body 414 carry out scattering, postradiation radiating light gets final product as illumination light.
Like this as under the situation of lighting device also the exit end at optical fiber 413 light-scattering body 414 is set, the light by optical fiber 413 radiates as scattered light.For this reason, the brightness of unit are with compare with regard to step-down from method of optical fiber 413 end direct irradiations etc.Thereby, even direct-view can not feel so twinkling yet.In addition, can by 414 pairs of light-scattering bodies widely scope throw light on.
And then, under with light-scattering body 414 and optical fiber 413 integrated situations about constituting, only get final product, and do not need as ligthing paraphernalia in the past, to be provided with large-scale utensil at the indoor light-scattering body 414 that is provided with.In addition, because light source 412 exists everywhere, light sends with optical fiber 413 and gets final product, so can also not be at the indoor light source that is provided with as ligthing paraphernalia in the past.Thereby, for example become and light source 412 can also be set in other rooms under the situation about utilizing in the place of problem and optical fiber 413 is applied to this place at electric short circuit etc., utilize as illumination.Thus, problems such as electric leakage or short circuit just can not take place throws light on safely.
When transmission information, give light source control portion 411 with this information to be sent.Light source control portion 411 controls the light on and off or the light quantity of light source 412 according to the information to be sent that receives, and radiates from light source 412 according to the light after the information via modulation to be sent in view of the above.Same with the situation of above-mentioned illumination, from the light modulated of light source 412 radiation by incident optical 413, after optical fiber 413 conductings, be incident to light-scattering body 414.In light-scattering body 414, to carrying out scattering from the light modulated of optical fiber 413 incidents, and the radiation scattered light.Even if produce scatterings, just can not be affected if the frequency ratio light frequency during modulation is low at light-scattering body 414.Thereby the scattered light after ovennodulation just radiates from light-scattering body 414.
In addition, so owing to use the element with high-speed responsive characteristic can utilize the light on and off or the fader control of the high speed of light source control portion 411 as light source 412, the scattered light after ovennodulation that radiates from light-scattering body 414 also carries out the change of light on and off or light quantity at high speed as described above.But, even carry out the change of light on and off or light quantity, if its be high speed then the change of light on and off or light quantity can be by the perception of people's eyes institute, and regard luminous as with roughly certain light quantity.Thereby the scattered light from light-scattering body 414 is radiated also can intactly utilize as illumination light even carried out modulation.
Receiving under the situation of information, got final product by light through the scattered light of ovennodulation by the light accepting part 422 of receiver 421 from light-scattering body 414 radiation.The light of being accepted by light accepting part 422 is transformed into electric signal and passes to demodulation section 423.Just can obtain information by carrying out demodulation then at demodulation section 423.
So, just can when throwing light on, carry out transmission of Information.In the communication that utilizes optical fiber in the past, need make receiver move the comparison difficulty with the optical fiber backguy up to receiver.But in the application the 4th invention, then where can both receive information as long as allow to accept the place of illumination light.In addition owing to not needing directly to be connected, so receiver can move with optical fiber.Receiver 421 is combined on the portable terminal device to be utilized.In addition, under situations such as original infrared communication or radio communication, need special-purpose transmitter be set with the ligthing paraphernalia difference.But in the application the 4th invention, usually, light-scattering body 414 is set, and replaces electric wire and lay optical fiber 413, just can communicate thus with throwing light on as being arranged at indoor ligthing paraphernalia.
In addition, by light-scattering body 414 emission scattered lights, thus illumination zone is broadened, so the scope that can communicate by letter also can broaden.And then, need several watts to the high like this power of tens of watts in order to throw light on, owing to can in communication, utilize this power, so can carry out at a high speed, high-quality communication.
Figure 27 is the concept map of the 1st variation in the 1st execution mode of the application the 4th invention.Symbol and Figure 26 among the figure are same, and the repetitive description thereof will be omitted.Because in formation as described above, as long as receiver 421 can accept illumination light and just can communicate,, can utilize various shapes so the shape of light-scattering body 414 etc. are any.In the 1st variation, utilized the example of flat light-scattering body 414 as an example expression.In addition, except that light-scattering body 414 is the tabular, formation and action are all same as described above.
By utilizing this flat light-scattering body 414, the light that incides light-scattering body 414 from optical fiber 413 carries out scattering to horizontal direction, and the light to the vertical direction scattering just radiates from the plane simultaneously.By utilizing lighting source to utilize as illumination light from the scattered light of this plane radiation with regard to can be used as two-dimentional shape.Thus, just can realize such, the very slim lighting device of thickness degree of light-scattering body 414.
In addition, also can on this face, form the reflecting surface that is equivalent to reflecting plate shown in Figure 26 415 or reflecting plate 415 under the situation of the face that the radiation that does not need scattered light is arranged.In example shown in Figure 27, be illustrated in flat light-scattering body 414 above be provided with the example of reflecting plate 415.By this reflecting plate 415, just can illumination efficiency be improved the scattered light that above light-scattering body 414, radiates back light scattering object 414 once more.
In addition, the light by optical fiber 413 has straightline propagation, existence only can not be carried out abundant scattering with 1 light-scattering body 414 situation.Overlapping in this case use multi-disc light-scattering body 414 is for well.Thus, angle of scattering is increased, in broader angular range, radiate the more scattered light of homogeneous.In addition, can also on the relative face of the joint face with optical fiber 413 of light-scattering body 414 reflecting plate be set, the light to straightline propagation reflects and changes direction, makes it carry out sufficient scattering.Perhaps come incident light also can obtain sufficient scattering by means of a plurality of optical fiber by a plurality of directions from scattering object 414.
Figure 28 is the concept map of the 2nd variation in the 1st execution mode of expression the application the 4th invention.Symbol and Figure 26 among the figure are same, and the repetitive description thereof will be omitted.The 416th, fluorophor.In the 2nd variation, use ultraviolet or blue LED or laser diode as light source 412.In addition, on light-scattering body 414, sneak into fluorophor 416 in advance.
Incide light-scattering body 414 from the ultraviolet ray or the blue light of light source 412 radiation by optical fiber 413.So, make fluorophor 416 excitations and emission white light in the light-scattering body 414 by means of the ultraviolet ray of institute's incident or blue light equally with fluorescent lamp etc.This white light comes out from light-scattering body 414 radiation.The light that is radiated from this light-scattering body 414 can be thrown light on as illumination light.In addition, by light source 412 being carried out light on and off or fader control according to information to be sent, if ultraviolet ray or blue light after ovennodulation are radiated from light source 412, just from the white light of light-scattering body 414 radiation after ovennodulation, so the light accepting part 422 that needs only with receiver 421 is subjected to light just can carry out transmission of Information.
In addition, to be not limited to semi-spherical shape as shown in figure 28 can also be tabular as shown in figure 27 etc., all forms to the light-scattering body 414 under this situation.
Figure 29 is the concept map of the 2nd execution mode of expression the application the 4th invention.Symbol and Figure 26 among the figure are same, and the repetitive description thereof will be omitted.In this 2nd execution mode, expression is connected to a light-scattering body 414 with many optical fiber 413, optical fiber 413 is separately made the logical example of photoconduction of different wave length respectively.In example shown in Figure 29, as the light source of light source 412 use red, green, blues, difference incident is from the light of the color of each light source 412 radiation on 3 optical fiber 413.
The optical fiber 413 of light by separately that is incided the red, green, blue of optical fiber 413 separately incides light-scattering body 414.Incided light-scattering body 414 color separately light by in light-scattering body 414, carry out scattering mixed, become white light and radiate.Thereby, as under the situation of illumination light, just can utilize as white light source at the light that will be radiated from light-scattering body 414.Certainly, except using as white light source, can also be by the light intensity adjustment of color separately being produced the illumination light of random color.
When communicating, except these a plurality of light sources 412 being carried out simultaneously drive controlling, can also realize by only a part being carried out drive controlling.In example shown in Figure 29, expression is only carried out drive controlling to LED or the laser diode that sends red light, to other green, blue LED or the laser diode example that do not carry out drive controlling.If handle like this, then only red light light modulated, other colors is just modulated.For example in the sensitivity of the light accepting part 422 of receiver 421 to red or infraredly have formation such under the situation such as peak value just effectively.
Like this light of a part of color is being carried out under the situation of modulation, wish in receiver 421, to accept this after ovennodulation light component and carry out demodulation.If for example the example shown in the image pattern 29 like that can be by being provided with the filter that sees through red light under the situation of red light having been implemented modulation, perhaps use red light is had the light accepting part 422 that height is subjected to photo sensitivity, the method of perhaps using prism red light to be carried out myriad of well known such as beam split is accepted red light selectively, and carries out demodulation with demodulation section 423 and just can receive information more reliably.
In addition, be sent to by many optical fiber 413 only arbitrarily, be not limited to the light of red, green, blue as described above, its light intensity also can freely change.For example can also establish all is that light with color increases light quantity.In addition, utilize as described above under the situation of light source 412 of red, green, blue, can also constitute the light that makes 3 looks and incide 1 optical fiber 413.In addition, the color of the light of modulating when transmission information is not limited to redness, modulates for other light more than 1 look to get final product.
In addition, in formation shown in Figure 29, can also be according to the indivedual drive controlling of different separately information light source 412 separately, to send a plurality of information.That is, can come transmission information 1, come transmission information 2, come transmission information 3 by blue light by green light by red light.In the case as long as select to be subjected to the color of the light of light, just can receive the information that the light by selected color sends in receiver 421 1 sides.
And then, except for example illuminating light being sent the one or more logical optical fiber 413, can also constitute the optical fiber that configuration information sends usefulness, control comes transmission information corresponding to the light source of this optical fiber.In the case, can send information by the color ground that uses white light source for example not change illumination light.In addition, can also carry out transmission by utilizing infrared light for example by means of ultrared information.
Figure 30 is the summary pie graph of variation of the 2nd execution mode of expression the application the 4th invention.Under the situation of only light of a part of color having been implemented modulation can also be for example shown in Figure 30, only by optical fiber 413 light modulated is supplied with light-scattering body 414, make the formation of the direct incident light-scattering body 414 of luminous light for the light source 412 that sends other colors for the light source 412 that carries out drive controlling by drive control part 411.The light that also can sneak into the color of institute's incident in light-scattering body 414 synthesizes in the case, uses as illumination light.Meanwhile, the light of special color is modulated, can be by being subjected to light to separate the reception information of transferring with the light accepting part 422 of receiver 421 this light component with demodulation section 423.Though expression is not limited to this to the example of red light enforcement modulation in Figure 30, both can also can implement modulation to blue, green light enforcement modulation is other to any 2 looks among 3 looks.
Figure 31 is the key diagram of the application examples of the application's the 4th invention.In this example, be illustrated in the example of a plurality of indoor distribution information.In the application's the 4th invention, can also be used as ligthing paraphernalia as described above.For this reason, be illustrated in the example that is provided with light-scattering body 414 on the indoor ceiling.Under situation about communicating, if then just reduction of communication quality of shadow occurs by illumination light.Like this light-scattering body 414 is being arranged under the situation of ceiling, so because the problem that the shadow that causes because of people or thing etc. is difficult to occur can doing one's utmost to avoid shade.
In addition, be illustrated in the example that is provided with a plurality of light-scattering bodies 414 in the A chamber.By the influence that a plurality of light-scattering bodies 414 just can further alleviate shadow is set like this.Be provided with like this under a plurality of light-scattering body 414 situations, can sending light modulated from same light source to a plurality of light-scattering bodies 414 by optical fiber 413.For this reason, do not need illumination apparatus that light source control portion 411 or light source are set one by one, the cost that is provided with of transmitter is significantly reduced.Certainly, also can constitute from a plurality of light-scattering bodies 414 and send different information, in the case by being subjected to the illumination light of light just can select the information that will receive in the selection of receiver 421 sides.
And then light-scattering body 414 is being set too in the B chamber.At this moment, can light modulated also be delivered to the B chamber from the light source identical with the A chamber.Thereby, identical information even the room difference also can be provided and delivered.In the case, even the room difference also can make light source control portion 411 commonization, and then also can commonization for light source 412.
In addition, in the above-mentioned the 1st and the 2nd execution mode, establish and carry out unidirectional transmission of Information and be illustrated.But, because optical fiber 413 is the two-way conducting light that comes, so also can carry out two-way communication.That is, be present in light that the light source of the outside of light-scattering body 414 sends from light-scattering body 414 by the end outgoing of optical fiber 413 from light source 412.Utilize this, the light source of the outside that is present in light-scattering body 414 is carried out drive controlling, make it send light modulated.This light modulated is by the end outgoing of optical fiber 413 from light source 412 sides.For example light separator such as semi-transparent semi-reflecting lens is set between the end of light source 412 and optical fiber 413, makes from the light of the end outgoing of light source 412 sides of optical fiber 413 and separate and be subjected to light, just can receive the information of being sent here as long as carry out demodulation.Thus, can carry out two-way communication.In addition, though incide the light quantity of optical fiber 413 because the scattering of light-scattering body 414 becomes very faint by light-scattering body 414, the raising by being subjected to photo sensitivity or the raising of blipology just can fully realize.
According to the application's the 4th invention,, just can in illumination, utilize this illumination light to communicate like this, just not need as in the past ligthing paraphernalia and communicator to be arranged at ceiling etc. respectively if optical fiber and light-scattering body are set.In addition, owing to use illumination light to communicate, so can communicate with high-power.For this reason, can carry out at a high speed, high-quality communication.In addition, in the powerful while, usually the illumination place that is configured to produce shadow does not occur as far as possible, for example becomes the such shade of problem, just just can significantly alleviate because of barrier makes the phenomenon of communication disruption with infrared ray LAN.And then, though from the light of light source radiation by optical fiber from the light-scattering body outgoing only make owing to do not use electric circuit in the middle of it and to use up, so system becomes simply, leak electricity in addition or problems such as short circuit can not take place yet.
＜the 5 invention 〉
Secondly, just the application's the 5th invention describes.In the application's the 5th invention, the formation that expression is also undertaken by light about the reception and registration of the information between each ligthing paraphernalia.
Ligthing paraphernalia is perhaps built electric pole and can not occurred shadow from higher position irradiates light to spread all over certain zone in extensively settings such as ceilings, throws light on.This illumination light is used in communication owing to can not cause shade and can utilize bigger illuminating power, so the advantage that can carry out high-quality communication and so on is arranged.
But, in illumination as described above because utensil is set at the ceiling equal-height position, so the problem of difficulty such as construction and so on is arranged.For example under situation about communicating by illumination light as described above, need the direct information ligthing paraphernalia that will send by means of communicating by letter.As method, for example consider to lay the method for the cable that is used for network or optical fiber etc. with the direct information ligthing paraphernalia.But,,, also need the expense of great number in addition so can't utilize illuminating light communication simply owing to must be used for the new construction of cabling or optical fiber.
As the method for laying that does not need to carry out new cable or optical fiber, for example as in the application the 1st invention, also carrying out, also consideration also make signal overlap at the power line that is used to throw light on, be transferred to the method for ligthing paraphernalia.But, signal overlap is transmitted at power line under the situation picture of information, if the higher situation that then causes electric wave radiation etc. of the frequency of signal also more, also have the situation that radio communication is become interference.In addition, also has the problem that makes signal be easy to be affected and so on because of electric moter noise or inverter noise etc.
Like this, as in order to carry out the device that illuminating light communication is used to ligthing paraphernalia transmission information, there was not best device in the past, and became the obstacle that is used to carry out illuminating light communication.In the application's the 5th invention, to provide in order carrying out and to pass on and best device to the information of each ligthing paraphernalia.
Figure 33 is the concept map of the 1st execution mode of the illuminating light communication system of expression the application the 5th invention.Among the figure, the 501st, optical communication apparatus, the 502nd, ligthing paraphernalia, the 503rd, terminal installation, the 511,522, the 531st, light receiving and transmitting part, the 512nd, telecommunication cable, the 521st, light-emitting component, the 523rd, photo detector.In example shown in Figure 33, expression uses the ligthing paraphernalia that is provided with for room lighting to realize the example of the situation of illuminating light communication system.
Be used for ligthing paraphernalia 502 is transmitted the optical communication apparatus 501 of the message transmission of usefulness to ligthing paraphernalia 502 by illuminating light communication indoor being provided with.This optical communication apparatus 501 is connected to network, carries out the transmitting-receiving of information by network.Network is the cable network that is arranged at office or school, factory, family etc., is made of optical fiber or coaxial cable, twisted wire etc., is also connected to outside telephone network or internet etc. mostly.The terminal of such network be arranged at like that as shown in figure 33 the situation of wall etc. also more, utilize telecommunication cable 512 that metope terminal and optical communication apparatus 501 are coupled together with electric means under these circumstances.
In light receiving and transmitting part 511, be provided with light-emitting component and photo detector, make light-emitting component send light modulated by modulating according to information to drive, ligthing paraphernalia 502 transmission information.By means of the luminous light of light-emitting component, in this example, wish and in a plurality of ligthing paraphernalias 502, to be subjected to light.For this reason, directive property is not too sharply for well.Perhaps, can also will can determine that luminous light each ligthing paraphernalia 502, that directive property is sharp-pointed shines towards separately ligthing paraphernalia 502.
Photo detector is accepted the light that sends from the light receiving and transmitting part 522 of ligthing paraphernalia 502, to receive the information of sending here from ligthing paraphernalia 502.In addition, owing to accept, need to separate and obtain the information of sending from light receiving and transmitting part 522 that light obtained by ligthing paraphernalia 502 from the illumination light of ligthing paraphernalia 502 radiation.Under situation about not receiving, also photo detector can be set from the information of ligthing paraphernalia 502.
According to this formation, optical communication apparatus 501 is as the gateway performance function of utilizing communication with the conversion of communicating by letter that utilizes light of wired telecommunication cable 512.In addition, owing to carry out for the signal post of a plurality of ligthing paraphernalias 502 also to finish function as the base station of wireless (light) communication.In addition, to be not limited to visible light also can be infrared light to the light that is used to communicate by letter at light receiving and transmitting part 511.
Be provided with not shown control part in the inside of ligthing paraphernalia 502, be passed to control part with 522 acceptance of light receiving and transmitting part and through the information after the demodulation.Control part is controlled the driving of light-emitting component 521 according to the information that receives, and makes according to this information via modulation back lighting light emission.Thus, carry out transmission from the ligthing paraphernalia 502 that utilized illumination light to the information of terminal installation 503.
In example shown in Figure 33, represent light-emitting component 521 with zero, dispose usefulness therebetween ● shown in photo detector 523.Though light-emitting component 521 is the elements that throw light on as described above, so owing to be to send light modulated according to information to use response characteristics element at a high speed.For example semiconductor light-emitting elements such as LED or LD is best.
In above-mentioned the 1st execution mode, the luminous of light receiving and transmitting part 511 controlled optical communication apparatus 501 from the information that network is sent here, in the space, send thus by light.Use the light receiving and transmitting part 522 of ligthing paraphernalia 502 separately to accept from the light that the light receiving and transmitting part 511 of this optical communication apparatus 501 is launched with reception information.Then, in ligthing paraphernalia 502 separately, come driven light-emitting element 521, make the illumination light after ovennodulation radiate out according to accepting resulting information at light receiving and transmitting part 522.Terminal installation 503 accept this after ovennodulation illumination light and carry out demodulation, information incoming terminal device 503 thus.
Otherwise the information of terminal installation 503 then is the light receiving and transmitting part 531 from terminal installation 503 sends light modulated, and accept it with reception information with the photo detector 523 of ligthing paraphernalia 502, send according to the light after the information via modulation to optical communication apparatus 501 transmission information at the light receiving and transmitting part 522 of ligthing paraphernalia 502.Accept from the light modulated of ligthing paraphernalia 502 and be transformed into electric signal at optical communication apparatus 501 usefulness light receiving and transmitting parts 511, be sent to network.Thus, just in the future the information of self terminal device 503 send to network.
Figure 34 is the concept map of the 2nd execution mode of the illuminating light communication system of expression the application the 5th invention.Figure 35 is the plane graph of an example of expression equal illumination utensil.Symbol among the figure and Figure 33 are same and the repetitive description thereof will be omitted.502-1～4th, ligthing paraphernalia, the 541st, lamp socket, the 542nd, bar-shaped lighting source.In above-mentioned the 1st execution mode, represented that ligthing paraphernalia 502 accepts the example from the light modulated of optical communication apparatus 501 respectively, in the 2nd execution mode, be illustrated in the example that message switch is carried out in ligthing paraphernalia 502-1～4.In addition, different with example shown in Figure 33 as ligthing paraphernalia 502-1～4, expression is by having arranged the example of light-emitting component 521 with the same shape of the general straight tube fluorescent lamp that utilizes.In addition, ligthing paraphernalia 502-1～4th, same ligthing paraphernalia does not describe as ligthing paraphernalia 502 when making any distinction between.
In this 2nd execution mode, like that at the four sides of ligthing paraphernalia 502 configuration light receiving and transmitting part 522, light receiving and transmitting part 522 also and between the ligthing paraphernalia 502 communicates as shown in figure 35.In addition, among a plurality of ligthing paraphernalias 502, only the light receiving and transmitting part 522 of some or a plurality of ligthing paraphernalias 502 communicates with optical communication apparatus 501, not the ligthing paraphernalia 502 that directly communicates with optical communication apparatus 501 by with the handing-over of the information of carrying out of communicating by letter of other ligthing paraphernalias 502.
In example shown in Figure 34, directly communicate by ligthing paraphernalia 502-1 and optical communication apparatus 501, ligthing paraphernalia 502-2 and ligthing paraphernalia 502-3 and ligthing paraphernalia 502-1 communicate, communicate by ligthing paraphernalia 502-4 and ligthing paraphernalia 502-2 or ligthing paraphernalia 502-3 in addition, obtain information thus from optical communication apparatus 501, or with message transmission to optical communication apparatus 501.For example, be sent to ligthing paraphernalia 502-1 from the information of optical communication apparatus 501, the information that is sent to ligthing paraphernalia 502-1 is sent to ligthing paraphernalia 502-2, ligthing paraphernalia 502-3.Convey a message to ligthing paraphernalia 502-4 from ligthing paraphernalia 502-2 or ligthing paraphernalia 502-3 then.Thus, to the information of ligthing paraphernalia 502-1～4 reception and registration from optical communication apparatus 501, transmission information is come by illumination light respectively in ligthing paraphernalia 502-1～4 separately, and information is sent to terminal installation 503.Otherwise if with ligthing paraphernalia 502-4 acceptance from the light modulated of terminal installation 503 then its information be passed to ligthing paraphernalia 502-2 or ligthing paraphernalia 502-3, and then convey to ligthing paraphernalia 502-1 from ligthing paraphernalia 502-2 or ligthing paraphernalia 502-3, information reaches optical communication apparatus 501 from ligthing paraphernalia 502-1, and information just is sent to network.
The communication that ligthing paraphernalia separately is 502 utilizes light to carry out in the space by light receiving and transmitting part 522.Thus, just can not lay ground such as telecommunication cable or optical fiber carry out 502 of ligthing paraphernalias separately from optical communication apparatus 501 communication.In addition, also consider in distance optical communication apparatus 501 ligthing paraphernalia 502 far away at the 1st execution mode, the decay quantitative change of carrying out the light quantity of communicating by letter between optical communication apparatus 501 and the ligthing paraphernalia 502 is big, so but in the 2nd execution mode because ligthing paraphernalia 502 separately is provided with because of the reduction that the communication quality that causes the position is set of ligthing paraphernalia 502 etc. with roughly certain interval can not take place.And then, owing to communicate transmission information 502 of ligthing paraphernalias, thus for not at the ligthing paraphernalia in the area of visual field of optical communication apparatus 501 502 also by communicating thus and can on illuminating light communication, utilize with optical communication apparatus 501 indirectly with communicating by letter of other ligthing paraphernalias 502.
Pass through the two-way communication of 501 of light receiving and transmitting part 522 502 of ligthing paraphernalias of realization and ligthing paraphernalia 502 and optical communication apparatus like this.In addition, as broadcast-type with one-way communication for good situation under, as certain constitutes in light receiving and transmitting part 522 usefulness light-emitting components or the photo detector, get final product be provided with so relative of ligthing paraphernalia 502 chien shih light-emitting components of handing-over information with photo detector.
In this 2nd execution mode, the example with the bar-shaped lighting source 542 of the same shape of straight tube fluorescent tube has been used in expression as shown in figure 35 like that.Configuration 1 and even ordered series of numbers light-emitting component 521 on this bar-shaped lighting source 542 disperse to exist photo detector 523 therebetween.Being shaped as arbitrarily of lighting source under the situation that the new luminaire tool is set decided the shape of ligthing paraphernalia etc. according to lighting source and design etc.But utilizing under the situation of original ligthing paraphernalia, then wishing the bar-shaped lighting source 542 of utilization and the same shape of straight tube fluorescent tube.Can throw light on by 541 pairs of bar-shaped lighting source 542 supply capabilities of lamp socket that bar-shaped lighting source 542 are installed between fluorescence.At this moment, in bar-shaped lighting source 542, assemble not shown control part in advance.In addition, light receiving and transmitting part 522 is configured around original ligthing paraphernalia, is electrically connected with bar-shaped lighting source 542 to get final product.So, just can utilize original ligthing paraphernalia to realize the ligthing paraphernalia of the application's the 5th invention.By utilizing original ligthing paraphernalia just can be than the situation that is replaced with the new luminaire tool with more low-cost realization illuminating light communication.
Certainly, the shape of lighting source is not limited to bar-shaped as the straight tube fluorescent tube, and is like this too with the circular grade that pipe fluorescent tube (annular) is same.Can be the lighting source of electric light blister as described later also in addition.
Figure 36 is the concept map of the 1st variation of the 2nd execution mode of the illuminating light communication system of expression the application the 5th invention.In example shown in Figure 34, represent ligthing paraphernalia is arranged at the example of ceiling face, for example also have such as shown in figure 36 ligthing paraphernalia 502 to be embedded into the situation of ceiling face.In the case, for example can make light receiving and transmitting part 522 also will be projected into the bottom as shown in figure 36 like that, just can carry out the communication that utilizes light of 502 of ligthing paraphernalias thus than ceiling face.
Figure 37 is the concept map of the 2nd variation of the 2nd execution mode of the illuminating light communication system of expression the application the 5th invention.This example shown in Figure 37 is also represented example that ligthing paraphernalia 502 ceiling-mounteds are provided with.The above space that embeds ligthing paraphernalia 502 under with the situation of ligthing paraphernalia 502 ceiling-mounteds in ceiling is empty.Can also constitute the space that utilizes in this ceiling is arranged on light receiving and transmitting part 522 in the ceiling and communicates 502 of ligthing paraphernalias and with optical communication apparatus 501.
Figure 38 is the concept map of the 3rd variation of the 2nd execution mode of the illuminating light communication system of expression the application the 5th invention.The example that this is shown in Figure 38, the example that expression utilizes under the situation that hangs lampshade as ligthing paraphernalia 502.Under underslung situation, utilize bulb mostly, in the application's the 5th invention, also use lighting source with the same shape of bulb as light source.In addition, light receiving and transmitting part 522 is arranged on the inboard top of the lamp umbrella of ligthing paraphernalia 502.Certainly, the position of light receiving and transmitting part 522 is set so long as the position that can communicate with other ligthing paraphernalias 502 or optical communication apparatus 501 etc. then is arbitrarily.
It is just comparatively useful that the situation of underslung ligthing paraphernalia 502 formation more, shown in Figure 38 in such purposes for example is set on each objective seat in shop etc.For example just can be only when offering internet coffee etc. by utilizing light to carry out that 502 of ligthing paraphernalias and ligthing paraphernalia 502 provide broadband connections with communicating by letter of optical communication apparatus 501 and need be in the shop cabling etc.
Figure 39, Figure 40 are the concept maps of the 3rd execution mode of the illuminating light communication system of expression the application the 5th invention.Figure 41 is the key diagram of an example of equal illumination light source.Among the figure, the 551st, lighting source, the 552nd, in abutting connection with light receiving and transmitting part between light source, the 553rd, light receiving and transmitting part between ligthing paraphernalia.In the example shown in above-mentioned Figure 35 waits, even also need under the situation of original ligthing paraphernalia light receiving and transmitting part 522 to be installed utilizing with lighting source.In this 3rd execution mode, the example that expression constitutes lighting source and light receiving and transmitting part 522 integratedly.
The lighting source 551 of the application the 5th invention is for example in example shown in Figure 41, with same expression and straight tube fluorescent tube and same bar-like shape such as Figure 35.Lighting source 551 is provided with light-emitting component 521 and photo detector 523, also is provided with not shown control part simultaneously in inside.In addition, be provided with in abutting connection with light receiving and transmitting part 552 between light source at belly, be set up in parallel a plurality of fluorescent tubes dispose like this be useful under the situation of lighting source 551 and the lighting source 551 of adjacency between the light receiving and transmitting part that communicates.In addition, the situation of the lighting source 551 more than 3 is set also, is provided with in advance in abutting connection with light receiving and transmitting part 552 between light source to well in the both sides of belly.
In addition, be provided be used for and the lighting source 551 of adjacency beyond lighting source 551 or the ligthing paraphernalia that communicates of optical communication apparatus 501 between light receiving and transmitting part 553.Because light receiving and transmitting part 553 corresponding various ligthing paraphernalias between ligthing paraphernalia are so adjustable grounds such as length or direction constitute.In addition, though in Figure 41, light receiving and transmitting part 553 between ligthing paraphernalia is separately positioned on both ends, also can be only a certain side.
Install after the fluorescent tube replacing with this lighting source 551 and original ligthing paraphernalia.At this moment, in advance lighting source 551 is installed for well keeping remaining untouched on the lamp socket of fluorescent tube.The electric power of lighting source 551 just can be accepted supply from the lamp socket of ligthing paraphernalia thus.Then as long as the length or the direction of light receiving and transmitting part 553 between ligthing paraphernalia are regulated the transmission of Information that just can use illumination light.
Example shown in Figure 39, expression are applicable to the situation of the formation of the 1st execution mode that the application shown in Figure 33 the 5th invents.In the case, light receiving and transmitting part 553 gets final product towards optical communication apparatus 501 between the ligthing paraphernalia of lighting source 551 separately with being arranged on.In the case, light receiving and transmitting part 553 is arranged at a lighting source 551 in separately the ligthing paraphernalia between ligthing paraphernalia, about other lighting sources 551 light receiving and transmitting part 553 ground can also be set between ligthing paraphernalia and use and carry out transmission of Information in abutting connection with light receiving and transmitting part between light source 552.
Example shown in Figure 40 represents to be applicable to the example of formation of the 2nd execution mode of the application shown in Figure 34 the 5th invention.In the case, optical communication apparatus 501 and being arranged between the ligthing paraphernalia of certain lighting source 551 communicates between the light receiving and transmitting part 553, about 551 of other lighting sources by between the adjacency light source between light receiving and transmitting part 552 or ligthing paraphernalia light receiving and transmitting part 553 communicate.If as at least one stroke, communicating route is set, just can all carry out illuminating light communication in the lighting source 551.Can certainly set a plurality of communicating routes in advance.
In addition, be illustrated on the ligthing paraphernalia that is embedded into ceiling the situation that lighting source 551 is installed among Figure 39, Figure 40, in this case between ligthing paraphernalia light receiving and transmitting part 553 to be projected into the bottom as shown like that comparatively effective.Equally, according to the difference of the ligthing paraphernalia that lighting source 551 is installed, the lampshade around also having also will extend to the situation of bottom according to source, Mingguang City 551.It is comparatively effective to make between ligthing paraphernalia light receiving and transmitting part 553 be projected into the bottom under these circumstances too.
Figure 42 is the concept map of the 4th execution mode of the illuminating light communication system of expression the application the 5th invention.Figure 43 is the key diagram of an example of equal illumination light source.In the 4th execution mode, be illustrated on lighting source 551 or the ligthing paraphernalia 502 light receiving and transmitting part 522 is not set, the example that substitutes by light-emitting component 521 and photo detector 523.The lighting source 551 that has been equipped with light-emitting component 521 and photo detector 523 is as shown in figure 43 like that used in expression here, and the example that lighting source 551 is constructed illuminating light communication system thus is installed on original ligthing paraphernalia.As comparing as can be known, in the example of lighting source shown in Figure 43 551, be not provided with in abutting connection with light receiving and transmitting part 553 between light receiving and transmitting part 552 and ligthing paraphernalia between light source with lighting source 551 shown in Figure 41.
In addition, sending from terminal installation 503 under the situation of information, the light modulated of sending from terminal installation 503 is accepted by the photo detector 523 of lighting source 551 and is carried out demodulation, arrives lighting source 551 from the information of terminal installation 503.According to the information that receives the luminous light of light-emitting component 521 is modulated the illumination light of emission after ovennodulation then.If accept it and carry out demodulation at the light receiving and transmitting part 511 of optical communication apparatus 501, then the information from terminal installation 503 just arrives optical communication apparatus 501.
Like this, in this 4th execution mode, no matter optical communication apparatus 501 or terminal installation 503 are perhaps accepted the illumination light that lighting source 551 sends with regard to being luminous to lighting source 551 all.Compare by the situation that light carries out direct communication with terminal installation 503 with optical communication apparatus 501, just can utilize the high-power of illumination light, simultaneously because ligthing paraphernalia is set at the place that ceiling etc. is difficult to occur shadow,, and can realize excellent communications so the influence of shade can alleviate.Certainly, do not need laying to the telecommunication cable of ligthing paraphernalia 502 or optical cable etc. yet.
In addition, though in example shown in Figure 42, expression utilizes the example of dedicated illumination light source 551 as shown in Figure 43, but like this too under the situation of for example utilizing such as shown in figure 33 dedicated illumination utensil, the light receiving and transmitting part 522 that can not be provided with in the ligthing paraphernalia 502 constitutes.
Figure 44 is the concept map of the 5th execution mode of the illuminating light communication system of expression the application the 5th invention.Among the figure, the 561st, street lamp.The street lamp 561 that is provided with on the way is a main flow with mercury vapor lamp or sodium vapor lamp, fluorescent lamp etc. now, but also considers the application of semiconductor light-emitting elements such as LED.Used at lighting source under the situation of semiconductor light-emitting elements, can various information have been sent vehicle or pedestrian in current by illumination light as street lamp 561.At this moment, for information to be sent being transmitted separately street lamp 561 and being laid telecommunication cable or optical fiber etc., this will spend cost.
In the application's the 5th invention, light receiving and transmitting part 522 is set on street lamp 561, same with above-mentioned the 2nd execution mode, carry out the handing-over of information by light in the space of 561 in street lamp.Thus, just can come transmission information to separately street lamp 561 transmission information and by the illumination light of street lamp 561.When constituting like this, thus since only carry out in separately the street lamp 561 construction just can and need not to lay telecommunication cable or optical fiber etc. comparatively economical.
In addition, the interval of street lamp 561 is wide compared with above-mentioned indoor situation, however is the 30m degree on the expressway, for can fully utilizing the scope of the communication of light.In addition, although because of the structure of landform or road etc. need adjust so that the direction of light receiving and transmitting part 522 towards the street lamp of adjacency, so long as the interval of common street lamp does not then have difficulty so.And then, though also the problem that mist covers the visual field and so on takes place in imagination, so this can not become very big problem yet owing to be spaced apart the 30m degree.
As the example of outdoor network,, represented to be undertaken the example of the communication between street lamp here, but the application examples of the application's the 5th invention is not limited to this by light about street lamp on the way is set.For example can also be used in the guiding lamp of aviation machine or the various purposes such as illuminating lamp in program meeting-place.
More than, just the application's the 5th invention description plurality of embodiments and variation thereof.In the above description, to give (being referred to as ligthing paraphernalia etc. here) such as ligthing paraphernalia 502 or lighting source 551, street lamps 561 from the message transmission of optical communication apparatus 501, but there is no need in separately ligthing paraphernalia etc., the information that receives intactly to be sent by illumination light.For example also can constitute extra address or ID etc. on the header of signal transmitted etc., ligthing paraphernalia etc. is accepted or rejected information and is selected the back to transmit by illumination light based on this.In addition, also can there be the transmission of Information of not carrying out utilizing illumination light, but as the ligthing paraphernalia of a kind of repeater or router performance function etc.
As described above, according to the application's the 5th invention, each ligthing paraphernalia or lighting source etc. communicate by light in the space, thus each ligthing paraphernalia of carrying out illuminating light communication or lighting source etc. are conveyed a message, so do not need the cable laying operation of telecommunication cable or optical fiber but qurer is constructed illuminating light communication system.At this moment, can also utilize original ligthing paraphernalia to construct, can and then reduce cost.In addition, in the communication that utilizes light, just can carry out transmission of Information and the restriction of frequency band can not take place or the problem such as overlapping of wave radiation, noise as the communication that utilizes lamp cord by high communication quality.
＜the 6 invention 〉
Below, just utilize the application examples of the communication of this illumination light to represent some inventions.The 6th invention describes with regard to the application.The 6th invention is illustrated in the example that utilizes tame electrical article or electricity decorations etc., various illuminations in the communication.
In the past in various electric equipments, LED semiconductor light-emitting elements such as (Light Emitting Diode) as show with and used.Figure 53, Figure 54 are the key diagrams of LED being used an example of the form that is used in electric equipment as demonstration.The example of Figure 53 (A) expression television receiver is provided with that the connection that is used for display power supply is cut off or when showing and the LED of the difference during standby or the difference of input terminal etc.In Figure 53 (B), represent the example of audio frequency apparatus in addition, but still be provided with the LED of the connection cut-out of expression power supply in the case.And then the example shown in Figure 53 (C), on the instrument that is arranged at tester etc., LED is set respectively, showing the operate condition of instrument separately or the state of the value shown in the instrument etc.
Be not only with simple like this and luminously pass on displaying contents, but also on the display unit that is used for character display or picture etc., also utilize semiconductor light-emitting elements such as LED the user.For example expression is provided with the example of equipment of liquid crystal panel in Figure 54 (A).In this liquid crystal panel, light LED is extensively obtained utilizing as a setting.In Figure 54 (B), represent the example of node personal computer equally, but also many time, utilize the liquid crystal panel of band bias light in this case as display unit.Also utilize LED as the bias light under this situation.In addition, the display unit of having arranged the electric light billboard etc. of most LED also is able to development and utilization.
And then except make the such purposes of user's acquired information by as described above luminous of identification, for example use semiconductor light-emitting elements such as also extensively having utilized LED at decoration.In the example shown in Figure 54 (C), expression is used in the example of the lamp decoration of Christmas tree.Same in addition, be used in the decoration of the billboard in shop or interior decoration etc.Also on various electric equipments, utilize semiconductor light-emitting elements such as LED is arranged in addition.
The semiconductor light-emitting elements such as LED that are arranged at such electric equipment make light directly see for people, and cause transmission of Information or beautiful sensation.The situation that only is used for this purposes was just arranged in the past but be not used to other purposes.
Figure 45 is the block diagram of an execution mode of the electric equipment of expression the application the 6th invention.Among the figure, the 601st, electric equipment, the 602nd, receiver, the 611st, LED, the 612nd, control part, the 621st, light accepting part, the 622nd, optical system, the 623rd, demodulation section.Used the example of LED611 here as an example expression of semiconductor light-emitting elements.Laser diode or EL element and Plasma Display element etc., other semiconductor light-emitting elements are like this too in addition.
LED611 is the led light source that is used to show always set on electric equipment, is used to show for example state of the device of power supply etc. here.In addition, a plurality of element of usefulness that constituted of the single element of usefulness that has of LED611 constitutes.In addition, light-emitting zone etc., the element that has polychrome in single part constitutes various in addition.
Control part 612 is controlled light on and off or the luminous quantity of LED611 according to information, and the luminous light of LED611 is modulated with transmission information.LED611 has very fast and so on the character of answer speed as described above, can be by coming transmission information according to control light on and off of high speed information ground or luminous quantity.In addition, even carry out the light on and off at a high speed or the control of luminous quantity, the such light on and off or the variation of luminous quantity also can't be found out by people, but be seen as continuous bright lamp.Thereby, the constant transmission of carrying out information of lighting lamp state that can keep LED611 in the past.In addition, modulation system is for being suitable for the modulation system of various numerals or simulation arbitrarily.
According to this formation, just can utilize always on electric equipment as showing with set LED611, keep the constant transmission of carrying out information of its Presentation Function.Electric equipment requires many functions but need on the limited area and among the simple design function be increased.For this reason, by utilizing set in the past LED611, just can append the sending function of information and device is maximized.
Receiver 602 is accepted the LED611 light that send, after ovennodulation of electric equipment 601, with reception information.As the formation that is used for it, comprise and accept light and be transformed into the light accepting part 621 of electric signal and electric signal is carried out demodulation and constitute with the demodulation section 623 that takes out information.Light from above-mentioned electric equipment 601 is accepted with light accepting part 621, with demodulation section 623 taking-up information, realizes thus from the message transmission of electric equipment 601 to receiver 602.
Optical systems 622 such as lens can also be set at light accepting part 621 in addition.Just can the light source of the light that is subjected to light be limited by this optical system 622 is set, and can come reception information by enough needle points.For this reason, even under the situation that similarly electric equipment is being arranged, also can receive the interference that can not be subjected to from the information of specific electric equipment from the message transmission of other electric equipments.
Figure 46 is the skeleton diagram of the 1st application examples in the execution mode of expression the application the 6th invention electric equipment.Among the figure, the 631st, television receiver, the 632nd, LED, the 633rd, infrared ray light accepting part, the 641st, remote controller, the 642nd, light accepting part, the 643rd, infrared light sending part, the 644th, display part, the 651st, portable terminal device, the 652nd, camera.In example shown in Figure 46, expression is applicable to the application's the 6th invention the example of television receiver.
In television receiver 631, always utilize the remote operation of remote controller 641.Generally is to utilize infrared ray from remote controller 641 to the communication of television receiver 631.In example shown in Figure 46, as the formation that is used for it, infrared light sending part 643 is set on remote controller 641, in television receiver 631 sides infrared ray light accepting part 633 is set in addition.According to this formation, if the information of operating then corresponding to this operation remote controller 641 users just is sent to television receiver 631 by infrared ray.For example if carry out the selection operation of channel with remote controller 641, then the information of selected channel is just delivered to television receiver 631 by infrared ray from infrared light sending part 643, the infrared ray light accepting part 633 of television receiver 631 receives, and switches to selected channel.In addition, in general television receiver 631, only carry out from the one-way communication of remote controller 641 to television receiver 631.
Usually be provided with on television receiver 631 that the connection that is used for display power supply is cut off and be one or more LED632 of show state or holding state.In the application's the 6th invention, this LED632 is carried out the transmission of information as LED611 shown in Figure 45.That is, functions such as the connection cut-out of the power supply that LED632 has always to be carried out or state demonstration also have simultaneously to carry out modulating accordingly with information and drive and launch the function that visual light modulated sends information.
Thus, just can realize from the message transmission of television receiver 631 to remote controller 641.As communicating by letter between the television receiver 631 of one-way communication and the remote controller 641, just can become two-way communication in the past, and just can receive the state of television receiver 631 and be transferred to the user at remote controller 641 side joints.Utilize it just the method for operating of for example television receiver 631 or displaying predetermined programme state etc. can be sent to remote controller 641 from television receiver 631, receive and be presented on the display part 644 in remote controller 641 sides and confirm.Can also confirm that at the display part 644 of remote controller 641 state of television receiver 631 carries out various operations on one side on one side in addition.
In Figure 46, expression further is provided with the example of the portable terminal device 651 of camera 652.The information of using the LED632 transmission of television receiver 631 can not be with the isolated plant as remote controller 641 grades, but in the reception that can accept the information of carrying out on the various devices of visible light.In recent years, the portable phone of band camera or PDA are in vogue to be utilized, and they can be utilized as portable terminal device 651, to receive the information of sending here from television receiver 631.In addition, digital camera or digital camera etc. are had like that originally and pinch hold communication function as the equipment of function.
Any one is all so same at remote controller 641 and portable terminal device 651, for example the programme content that receives with television receiver 631 can be sent from television receiver 631, be presented at the display part of portable terminal device 651, also carries out sound reproduction from loud speaker.The program (lining program) different with television receiver 631 shown check, perhaps for example not make text broadcast etc. be presented at the picture of television receiver 631 but show and watch in remote controller 641 and portable terminal device 651 sides.
Because this transmission of Information of visible light of having utilized is as long as just can carry out under the state of the bright lamp of LED632, so for example also can communicate under the situation of the holding state that does not carry out audiovisual.In addition, owing to be provided with the situation of optical systems such as lens or in the camera 652 of portable terminal device 651 etc. at the light accepting part 642 of remote controller 641, can accept light selectively, so even if under the situation that for example is set up in parallel many television receivers, also can receive information selectively from specific television receiver from light source.
Figure 47 is the skeleton diagram of the variation of the 1st application examples in the execution mode of expression the application the 6th invention electric equipment.Among the figure, the part identical with Figure 46 added identical symbol, and also the repetitive description thereof will be omitted.The 34th, light accepting part, the 45th, illuminating part.In example shown in Figure 46, undertaken by infrared ray to the message transmission of television receiver 631 from remote controller 641, but in variation shown in Figure 47, the example of expression about also being undertaken to the message transmission of television receiver 631 by visible light from remote controller 641.In addition, about also same to the message transmission of utilizing visible light of remote controller 641 with above-mentioned example from television receiver 631.
In order realizing, to be provided with illuminating part 45 in remote controller 641 sides and to be provided with light accepting part 34 in television receiver 631 sides simultaneously from the message transmission of utilizing visible light of remote controller 641 to television receiver 631.They are corresponding to infrared light sending part 643 shown in Figure 46 and infrared ray light accepting part 633.
Sending under the situation of information from remote controller 641 sides, making illuminating part 45 carry out luminous getting final product according to the signal that has carried out modulation according to information.In the light accepting part 34 of television receiver 631 sides, be subjected to light and demodulation just can receive the information of being sent here from remote controller 641 thus through the light after the ovennodulation.
On the illuminating part 45 that is arranged at remote controller 641, optical systems such as speculum or lens are set, constitute like this with the light beam of gathering from the light modulated of illuminating part 45 emissions.Thus, but to television receiver 631 just efficient the light after ovennodulation is arrived.Meanwhile since in this communication the only visible light that utilized, so for example same if the light beam that is drawn in arrives 631 in television receiver with flashlight etc., like that the face of television receiver 631 is thrown light on brightly as shown in figure 47.Thus, can identification by the zone that light shone from remote controller 641 emissions.Even for example under the situation that many television receivers 631 exist, also can determine reliably the information that becomes the transmission target television receiver and confirm to come transmission information.
Because infrared light can not be seen by eyes,, under the situation that many television receivers exist, just need change the setting operation of ID etc. in addition in the controller side so can't determine the transmission target of information.But, in the application's the 6th invention, do not need such setting, be irradiated to eyes affirmation light and want that the television receiver of operating carries out the remote controller operation and gets final product, can operate reliably simply.
In addition, remote controller 641 is not limited to television receiver, for example also can be used in video camera or DVD, audio frequency apparatus, air conditioner, other various equipment, and above-mentioned the 1st application examples can be suitable equally in these equipment.
And then, in all facilities that have the merit of coming display power supply state or equipment state by semiconductor light-emitting elements such as LED, can be suitable for the present application, then expression is applied to the example of determinator etc.Figure 48 is the skeleton diagram of the 2nd application examples in the execution mode of expression the application the 6th invention electric equipment.Among the figure, the 661st, instrument, the 662nd, light-emitting diode display.In addition, portable terminal device 651 is provided with camera 652 with shown in Figure 46 same.
As shown in figure 48, in control board of the aircraft cockpit of flying machine, factory etc. etc., arranging various instruments 661.Meanwhile on instrument 661 separately, show by light-emitting diode display 662 whether equipment corresponding to this instrument 661 moves or the situation of its state etc. more.This light-emitting diode display 662 is carried out the transmission of information as LED611 shown in Figure 45.That is, light-emitting diode display 662 has the function of the operate condition of the display device that in the past carried out etc., also holds simultaneously and carries out modulating driving accordingly with information, launches visual light modulated to send the function of information.For example, can send the represented value of the state of the device that instrument 661 separately is responsible for or instrument 661, be provided with the various information such as handbook of the determinator or the control device of instrument 661.
Just can during being provided with portable terminal device 651 grades of camera 652 for example, receive from the light modulated of light-emitting diode display 662 emission that is arranged at instrument 661 like this.Particularly under the situation that a plurality of instruments 661 are set as shown in figure 48 like that by by camera 652 light-emitting diode display 662 of filming instrument 661 selectively, just can receive information thus from the light-emitting diode display 662 of specific instrument 661.For example wondering that the light-emitting diode display 662 of only taking the 4th instrument 661 under the situation of the detailed state of the 4th instrument 661 in a left side or handbook gets final product.Thus, just can only receive the information of light-emitting diode display 662 transmissions of the 4th instrument 661 selectively from a left side.At this moment, while as long as the user watches the position of catching light-emitting diode display 662 with camera 652 captured reflections just can obtain desired information reliably and can not make mistakes.
So if such information communicated with electric wave etc. then, and receive the information of other instruments because electric wave is propagated around and can't be caught by needle point sometimes.In addition, also need to make differences such as frequency, time, code to send, must select electric wave from specific instrument etc. at receiver side, the operation of trouble and affirmation.In narrow place multiple arrangement is arranged like this, can be from wherein directly not selecting one mistakenly, Here it is utilizes the advantage of the communication of visible light.
By carry out successively as described above with the communicating by letter of instrument 661, just be stored in the portable terminal device 651 from the information of instrument 661.The message transmission that this can be stored is handled to portable terminal device 651 or other-end or main frame.For example can also be applied to the inspection consumption in ammeter or water meter, the gas meter etc.
Figure 49 is the skeleton diagram of the variation of the 2nd application examples in the execution mode of expression the application the 6th invention electric equipment.Among the figure, the 653rd, illuminating part, the 663rd, light accepting part.Same with above-mentioned Figure 46, example shown in Figure 47, the light accepting part 663 of accepting visible light or infrared light also is set for instrument 661, the illuminating part 653 send visible light or infrared light is set on portable terminal device 651 in addition, also can constitutes and to carry out from portable terminal device 651 to the communication of instrument 661 to carry out two-way communication.By carrying out two-way communication like this, just can carry out for example carrying out the affirmation or the transmission of Information request of instrument 661 from 651 pairs of instruments of portable terminal device 661, perhaps the affirmation after the message transmission is turned back to instrument 661 grades and communicate by letter reliably.
In addition, between such instrument 661 and portable terminal device 651, carry out under the situation of handshaking, for example carry out light on and off that the user can see degree or change of color etc., just can also show the medium state of to communicate by letter or to communicate by letter with same light-emitting diode display 662 by the light-emitting diode display 662 that makes instrument 661.Thus, also just can it select the instrument 661 of communication object to communicate reliably and can be mistaken for the user with other instruments.
In addition, as once illustrating at Figure 47, illuminating part 653 in portable terminal device 651 sides is provided with optical system, light beam to light draws in, just can carry out message transmission thus to the needle point of specific instrument 661, can also judge to which instrument 661 transmission information by the optically focused light that shines instrument 661 in addition, visually confirm.
As described above, the application the 6th invention not only can be applicable to tame electrical article but also can be applicable to tester or the industry equipment of the control board of factory etc.In addition, can also be widely used in office equipment, automobile or aviation machine etc. transports with various purposes such as equipment.
Figure 50 is the skeleton diagram of the 3rd application examples in the execution mode of expression the application the 6th invention electric equipment.Among the figure, the 671st, audio frequency apparatus, the 672nd, liquid crystal panel, the 673rd, bias light LED.In above-mentioned the 1st, the 2nd application examples, expression LED comes the example of the power status of display unit or unit state etc. separately by LED, but the application's the 6th invention is not limited to this.In the 3rd application examples, expression will be assembled in the example that semiconductor light-emitting elements such as LED in the display unit are used in communication.In addition, portable terminal device 651 and Figure 46 or Figure 48, shown in Figure 49 identical are provided with camera 652 at least.
Here audio frequency apparatus 671 is represented as concrete example.On nearest audio frequency apparatus 671, be provided with liquid crystal panel 672 in order to show various information.The wide as a setting LED that utilize on this liquid crystal panel 672 more.This bias light is carried out the transmission of information with LED673 as LED611 shown in Figure 45.That is, show information on liquid crystal panel 672, the user can be with reference to the image that is mirrored at liquid crystal panel 672, and difference drives bias light LED673 by modulating according to the information that will send therewith, just can utilize the light of bias light to come transmission information.By for example in portable terminal device 651 grades, accepting the light of bias light and carrying out demodulation, just can receive information.
In addition, as the variation of above-mentioned the 1st application examples and variation or the 2nd application examples, under the situation of carrying out two-way communication, with the next door of LED673 or at the back side of the liquid crystal layer of liquid crystal panel 672 photo detector or sensitive layer are set, constitute like this to accept visible or infrared light at the bias light of liquid crystal panel 672.Pass through under the state of liquid crystal layer at the light of bias light, so owing to the light from the outside also can adopt the formation that light accepting part is set in the inside of liquid crystal panel 672 like this by liquid crystal layer with LED673.Then, the light-emitting component of visible light or infrared light is set on portable terminal device 651, sends the visible light or the infrared light that have carried out modulation according to the information that will send, accept and carry out demodulation to get final product by the light accepting part in the liquid crystal panel 672.Thus, about also carrying out to the message transmission of audio frequency apparatus 671, can carry out two-way communication from portable terminal device 651.
Certainly, if audio frequency apparatus 671 is to carry out apparatus operating by remote controller, then also can similarly carry out by means of having utilized the communication of bias light with the visible light of LED673 for situation about as above-mentioned the 1st application examples, using a teleswitch.In addition, be not limited to this, LED also can be used as the equipment of the various display unit of light source for having carried though carried out expression with audio frequency apparatus 671 as concrete example here.For example can be in electrical article display part or, wireless machine, node type personal computer, LCD, liquid crystal TV set, utilize from the liquid crystal display of the wainscot of motor-car etc., auto navigation etc., in utilizing all facilities of LED as the liquid crystal indicator of bias light.In addition, in above-mentioned portable terminal device etc., also can on display part, utilize illuminating LED similarly to communicate.
And then, can also be useful in the various display unit that the semiconductor light-emitting elements beyond the LED is utilized as light source, the display unit of response characteristics other modes of element very at a high speed is not limited to liquid crystal indicator, even so long as also can similarly be utilized the communication of visible light.
Figure 51 is the skeleton diagram of the 4th application examples in the execution mode of expression the application the 6th invention electric equipment.Among the figure, the 681st, Christmas tree, the 682nd, decorative lamp, the 683rd, LED, the 684th, photo detector.In this 4th application examples,, represent the situation of Christmas tree 681 as the one example for as decorating with having utilized the situation of LED to represent.In addition, portable terminal device 651 and Figure 46 or Figure 48, Figure 49, shown in Figure 50 same are provided with camera 652 at least.
On Christmas tree 681, implement various decorations, used decorative lamp 682 as one.Decorative lamp 682 is to dispose light source with appropriate interval on electric wire, makes the light source light on and off carry out decoration by means of light on Christmas tree 681 grades by it is hung over.
In recent years, developed the lamp that on decorative lamp 682, also utilizes LED683.This LED683 can be carried out the transmission of information as LED611 shown in Figure 45.That is, can when the bright lamp of LED683, make by modulating and drive and visible light after ovennodulation carries out luminous according to information.Can separate the reception information of transferring by in portable terminal device 651 grades for example, accepting this light modulated.So, for example, pedestrian etc. just can receive message or all information of sending here from Christmas tree 681 such as image, sound if covering portable terminal device 651 when watching Christmas tree 681.
In addition, owing in decorative lamp 682, also have the part of many LED683 of configuration, so can accept the photo detector 684 of visible or infrared light this part setting.Then, the light-emitting component of visible light or infrared light is set, sends the visible light or the infrared light that have carried out modulation according to the information that will send, be subjected to light and carry out demodulation to get final product by photo detector 684 at portable terminal device 651.Thus, about also carrying out to the message transmission of Christmas tree 681, can carry out two-way communication from portable terminal device 651.Certainly, photo detector 684 also can separately be disposed at Christmas tree 681 with other ornaments with decorative lamp 682.
Though in the 4th application examples, represented the example of the decorative lamp of Christmas tree, semiconductor light-emitting elements such as being used in various ornamental LED can also be used in communication in addition by means of visible light.For example can with implemented electric decorations clothing or, the semiconductor light-emitting elements such as LED that utilized in the electricity decorations of decoration, storefront or the building of the lamp decoration, interior decoration furniture etc. of the roller coaster of appearance etc., the various decoration in parade etc. are used for the communication of visible light.
Figure 52 is the skeleton diagram of the 5th application examples in the execution mode of expression the application the 6th invention electric equipment.Among the figure, the 691st, the electric light billboard.In recent years, the electric light billboard 691 that has disposed most light sources is extensively utilized, and utilizes LED mostly as its light source.In addition, the situation that also disposes the LED that is used to decorate except that the part of the information of carrying out demonstration is arranged in electric light billboard 691.These can be used to carry out the LED of information demonstration or the LED that is used to decorate etc. and carry out the transmission of information as LED611 shown in Figure 45.For example, pedestrian etc. just can receive message or all information of sending here from electric light billboard 691 such as image, sound if covering portable terminal device 651 grades of band camera on electric light billboard 691.
Certainly, if the photo detector of accepting visible or infrared light is set on electric light billboard 691, just can and be provided with between the portable terminal device 651 of light-emitting component of visible light or infrared light and carries out two-way communication.
Electric light billboard 691 is also utilized as billboard at storefront except show news etc. in the street corner, perhaps be used in train or bus etc. go to the destination to show or various purposes such as species demonstration, expense demonstration in demonstration.In such variety of applications, can be suitable for the application's the 6th invention on the used electric light billboard greatly.In addition, about the set sign lamp on the indicator light in the construction or guiding lamp that the pilot held, the road or road surface etc., utilize the variety of applications of semiconductor light-emitting elements, this semiconductor light-emitting elements can be used for using as communication, to carry out communication by means of visible light.
Like this, according to the application's the 6th invention, to be used for making light directly to see arrival transmission information or make the people remember that the used semiconductor light-emitting elements such as LED of display unit of aesthetic feeling remain untouched the function of effect display unit, drive the communication that just can be used in by means of visible light by modulating according to information for people.Need not reset dispensing device by utilizing original semiconductor light-emitting elements just can communicate like this, the maximization of device or the change that designs just no longer need.
In addition, in the electric equipment that in the past used a teleswitch, just can receive the information of sending here from electric equipment by carrying infrared rays receiver on its remote controller.Even the portable terminal device of also available band camera etc. carries out the reception of information beyond the remote controller.In the case, if as have optical system the camera etc. and can draw in and be subjected to light beam, just can determine light source, and available needle point receives as information transmission source.
And then, just can between electric equipment, carry out two-way communication as long as have the sending function of visible light or infrared ray etc.In addition, under the remote controller side has situation by means of the sending function of visible light, throw light on as the zone that sends target by the light beam that sends used light, thus just reliably the identification equipment that sends target determine, determine that easily the communication of the transmission target of information just becomes possibility.
＜the 7 invention 〉
Then as the 2nd application examples, just the application's the 7th invention describes.The application's the 7th invention is the application examples at emergency light.
In case even if emergency light also less in demonstration be if the situation that bright lamp then semipermanent ground throws light on and turns off the light.This is because must accidents such as preparation fire, disaster, in the building, arenas, cinema, hospital, airport, station etc., noticeable place be provided with a plurality of emergency lights.Present emergency light utilizes fluorescent lamp as light source mostly.Because imagination electric power of outside when disaster is cut off in emergency light, when unusual, use inner storage battery to show.Use in order to effectively utilize limited electric power compared with white heat bulb electrical efficiency fluorescent lamp preferably.But, the further reduction of the maintenance cost that expectation brings because of the electrical efficiency employing of utilization, long-life light source of light source preferably.Though the LED electrical efficiency is good and the life-span is long as described above, do not consider being suitable for to emergency light.Such as in the flat 9-19084 communique of Japan Patent Publication Laid-Open the record, the example that utilizes LED in demonstration in charging etc., the less important demonstration is only arranged, but do not utilize the situation of LED as the main light source of emergency light.
In addition, the emergency light of operated by rotary motion only visually shows where is it emergency exit or unusual stair.As information in addition, for example in the flat 8-299475 communique of Japan Patent Publication Laid-Open, put down in writing the guide that utilizes sound is set like that, put down in writing at the flat 8-67203 communique of Japan Patent Publication Laid-Open perhaps that to carry out radio receiver broadcasting etc. like that known.But voice output consumes electric power very much.For this reason, the visual demonstration with as the emergency exit of the fundamental significance of emergency light etc. needs to carry jumbo storage battery in order to carry out such voice output, the problem that also has equipment also to maximize and so on when price uprises.
On the other hand, utilize the high-speed responsive characteristic of LED can carry out High Speed Modulation, so also carried out LED is used in the research of light transfer of data.Utilize this point, it is also known with the idea of communicating by letter to throw light on simultaneously.But common ligthing paraphernalia stops then to extinguish if electric power is supplied with.For this reason, can't carry out any utilization when unusual, in addition, the transmission system of imagining when unusual is not constructed as yet.
For such problem, in this application's the 7th invention, the light that emergency light is sent in expression is used in the example of communication.
Figure 55 is the block diagram of an execution mode of the emergency light of expression the application the 7th invention and emergency light wireless system for transmitting data.Figure 56 is the key diagram as an example of the led array of light source.Among the figure, the 701st, emergency light, the 702nd, portable terminal device, the 711st, storage battery, the 712nd, switching part, the 713rd, led array, the 714th, department of modulation and demodulation, the 715th, data storage, the 716th, modulating sections, the 721st, light accepting part, the 722nd, demodulation section, the 723rd, display part, the 731st, lampshade.Emergency light 701 has storage battery 711 as power supply and external power source equally with general existing emergency light, has in addition to be used for supplying with the switching part 712 that switches under the situation about stopping from the electric power supply of storage battery 711 from the electric power of external power source.
In the application's the 7th invention, replace fluorescent lamp in the past and used led array 713 as illuminating light source.An example of the shape of expression led array 713 among Figure 56.In the example shown in Figure 56 (A), same with general emergency light, at souvenir be provided with led array 713 in the lampshade 731 of pictograph etc.Under situation about using, shown in Figure 56 (B), utilize and the same bar-shaped led array 713 of fluorescent lamp with such form.For example one or more LED elements being the row shape is configured and gets final product.In addition, if such led array 713, then can utilize, only the fluorescent lamp in the general emergency light that utilizes be replaced to shown in Figure 56 (B) emergency light that led array 713 like that also can constitute the application's the 7th invention as the substituting of fluorescent lamp of the bright lamp of direct current.At this moment, being transformed into direct current with the AC/DC converter under the situation of supplying with alternating electromotive force from power line drives and gets final product.In addition, in the emergency light that utilizes the fluorescent lamp that exchanges bright lamp, the DC/AC converter is built in the led array 713, when utilizing the driving of storage battery 711, uses to get final product.In addition, by utilizing led array 713 as the shape that substitutes of this fluorescent lamp, just can be in appearance with in the past emergency light without any variation.
Except constituting as this illumination pipe in the past alternative, for example shown in Figure 56 (C) like that, the demonstration that constitutes formed pictograph on lampshade 731 etc. directly shows by led array 713.If the pictograph of expression emergency exit etc. generally is to form pictograph with white and green, so can pictograph be displayed White LED and the suitable configuration of green LED.Certainly, also can constitute with colour display device and dispose LED equally, pictograph etc. is shown.In addition, use as lampshade 731 in the case transparent in well.
By the light source of such use led array as emergency light 701, the feature that has low power consumption and so on because of LED, so even less battery capacity also can realize lighting time same, and realize the miniaturization of storage battery 711 and then can realize the miniaturization of emergency light 701 and lightweight, low price.Otherwise, if identical battery capacity just can spread all over the long-time bright lamp that continues, can be in the demonstration of disaster duration time showing refuge guide.In addition, so, the number of upkeep operation is reduced, just can reduce maintenance cost because LED can prolong the service intervals of changing light source and so on the long-life.Bright lamp inspection when certainly, wishing to go to carry out the spot or the life of storage battery, disaster etc., be used for the maintenance that performance is kept.And then LED has higher impact resistance, can expect also to avoid the breakage of light source when violent disaster and continues to carry out bright lamp.
In the emergency light 701 of the 7th invention of the application shown in Figure 55, and then be built-in with department of modulation and demodulation 714, data storage 715, modulating sections 716.Utilize the communication mode of the power line that has used the supply external power source to come here, to emergency light 701 transmission data.Department of modulation and demodulation 714 will overlap the data of sending here on the voltage of external power source through ovennodulation to be separated, and is kept at after the demodulation in the data storage 715.For example, should be when unusual by utilize power line to be sent in from computer etc. from the data of emergency light 701 transmission, just can in beyond emergency light 701 is when unusual via the external power source data of providing and delivering, and can easily data be saved in data storage 715.In addition, can also to the data of being preserved in the data memory 715 or, all information such as state of emergency light 701 modulate the back and send by power line.Thus, even if also can carry out the rewriting affirmation of data or the confirming operation of emergency light 701 etc. in the distance.In addition, can also constitute as just demodulation function at the situation modulated demodulation section 714 that does not carry out two-way communication.In addition, under the data conditions of in store in advance transmission when unusual, this department of modulation and demodulation 714 does not just need in data storage 715.
Can in data storage 715, be kept at the data of sending when unusual in advance.Wish that this data storage 715 is low power consumption as far as possible, in addition, also the data that need store when power supply switches can not be eliminated.For example constitute with rewritable ROM, non-volatile RAM etc.
Modulating sections 716 switches to storage battery 711 grades when unusual with power supply from external power source if detect in switching part 712, the data of just reading when being kept at data storage 715 unusual are modulated, and make it be overlapped in the power waveform that is supplied to led array 713.The luminous light of led array 713 just can be according to by the data after modulating sections 716 modulation light on and off or light quantity being controlled thus.Utilize the transfer of data of light thus.The data of being preserved in also to data memory 715 beyond certainly, can also be when unusual are modulated and are supplied with led array 713 and carry out transfer of data.In the case, the data that also can should transmit when unusual are different.
Portable terminal device 702 be for example with the PDA of camera or portable phone etc. for well, comprise light accepting part 721, demodulation section 722, display part 723 etc. and constitute.Light accepting part 721 is accepted from the light of led array 713 radiation of emergency light 701 and is transformed into electric signal, and enough cameras of energy or photodiode etc. constitute.
Demodulation section 722 extracts according to the data-signal that has carried out modulation from the electric signal of light accepting part 721 outputs and carries out demodulation to obtain data.Obtained data can have all applying flexibly, and here are to be presented on the display part 723.Thus, when unusual, just be displayed on display part 723 by the data that light transmitted from emergency light 701.The relevant map that is arranged at the emergency exit of floor or the route of taking refuge etc., literal or image are presented in the display part 723.The boombox acoustic information in addition, can also transmit acoustic information, as long as also can be obtained simply as portable phone.
Describe with regard to an action in the execution mode of the emergency light of the application the 7th invention and emergency light wireless system for transmitting data and an example of utilization.In emergency light 701, in advance data memory 71 5 is carried out the preservation of the data that will send when unusual.As one of method, utilize as described above power line communication externally on the waveform of power supply overlapping data after ovennodulation send, in emergency light 701, carry out demodulation and obtain by obtaining the data of sending here from external power source through ovennodulation.Perhaps, also can constitute in advance data are stored in externally that ROM etc. is back to be installed ROM as data storage 715 on emergency light 701.The formation of storage card etc. and so on for example also can above be installed.
Modulating sections 716 is modulated from data storage 715 sense datas when unusual, and carries out overlapping on the power supply wave shape that is supplied to led array 713.Come driving LED array 713 by electric power, just can when led array 713 is luminous, control, data are sent by light to its luminous quantity or light on and off according to overlapping data through ovennodulation.
The holder of portable terminal device 702 just can receive the data of sending here by light from emergency light 701 by the portable terminal device 702 that will be held towards emergency light 701 when unusual in addition.It is also more for example not know to be positioned at situation where from branch when unusual, does not know that also what can be taken refuge and feel uneasy in addition even for example take refuge according to emergency light.But, in the application the 7th invention can from emergency light 701 visually diagram, how many m degree of back of obtaining the title of building or the number of plies, the map of floor or the route of taking refuge such as (perhaps and then also available sounds) emergency exit etc. is arranged, only with in the past can't obtain, more detailed various information of emergency light.For this reason, just can alleviate uneasiness to a certain extent, take refuge more apace.
Usually, because portable terminal device 702 mostly is battery-operated, so even when unusual, also can apply flexibly effectively.Thereby, by when unusual, using the portable terminal device 702 that does not have the luminous emergency light of external power source and do not need external power source, just can be unusually the time, particularly externally also can successfully carry out refuge guide etc. under the situation of dump.
In addition, though need to be used for the electric power of action such as modulating sections 716 grades in the emergency light 701 of the application the 7th invention, and be used to that its luminous electric power is compared, partly to move needed electric power considerably less for the electronic circuit that makes them.For this reason, also need to make the storage battery 711 of emergency light 701 to strengthen hardly even have this data-transformation facility of light that utilizes, compare with for example except that light, sending such formation such as electric wave or sound, just can significantly suppress electricity consumption, the other device that does not also need to be provided for separately sending data.For example promptly use infrared ray can not avoid electricity consumption too, also need to be provided with separately transmitter in addition.Comparatively favourable from the viewpoint utilization of this power consumption attenuating and device summary by means of the transfer of data of the light of led light source.
Certainly, emergency light 701 similarly throws light on by the luminous and common emergency light of led array 713, carries out the demonstration of the emergency exit or the route of taking refuge, even the people's also effectively not variation of this point when unusual for not having portable terminal device 702.Even if control luminous quantity or light on and off for transfer of data, the variation people's of such light quantity eyes fully can perception yet, just can not damage the function as emergency light.More than this, can also apply flexibly the characteristic of LED as described above, so can finish the function that surpasses in the past as emergency light.
In addition, utilize the transfer of data of this emergency light 701, be not limited to when unusual.The information of being preserved in the data storage 715 often can also be sent by light.In addition, if the data beyond the non-common data also are kept in the data storage 715, with modulating sections 716 when unusual with its beyond change sense data institute the time, just for example on every side store information or news etc. also can be transferred to portable terminal device 702.Emergency light 701 if in case bright lamp just can not extinguish, no matter frequent bright lamp round the clock.For this reason, the user of portable terminal device 702 just can be often from emergency light 701 acquired informations.In addition, as described above owing to can utilize the power line communication content of rewrite data memory at any time, and frequent update content, so in real time data distribution is arrived portable terminal device 702 in beyond can be when unusual.
In above-mentioned example, just obtain the example of data and in data storage 715, keep data conditions etc. in advance and be illustrated by power line communication.But be not limited to these,, can also utilize various methodologies as the method for data being sent into emergency light 701.Figure 57 is the block diagram of other execution modes of the emergency light of expression the application the 7th invention and emergency light wireless system for transmitting data.Among the figure, the 741st, antenna, the 742nd, department of modulation and demodulation.In the example shown in Figure 57, expression sends data from outside by electric wave, is kept at the example in the data storage 715 after receiving with emergency light 701.Carry out demodulation by the data that antenna 741 receives with department of modulation and demodulation 742, data are stored in the data storage 715.This data be received in when unusual beyond the time get final product.Owing in beyond when unusual, can accept to supply with, so also can carry out such Data Receiving of utilizing electric wave from the electric power of external power source.Certainly, only just can at the situation modulated demodulation section 742 of the data distribution of carrying out broadcast-type for demodulation function.
And then, beyond electric wave as shown in Figure 57, also can utilize order wire beyond optical cable or telecommunication cable etc., the power line to accept the dispensing of data in advance.In addition, by utilizing the power line communication shown in Figure 55 that the advantage of antenna or other cables etc. and so on need not be set separately with regard to having the dispensing that can accept data.
Like this, according to the application the 7th invention, by with LED as light source, just can suppress the consumption of storage battery according to high electrical efficiency, and the miniaturization of the device that brought by the miniaturization of storage battery of realization or fluorescent lifetime is long-term as the feature of LED.In addition, so owing to be the interval of the maintenance of the replacing of light source etc. can be prolonged the long-life, and can cut down maintenance cost.And then LED also does well on impact resistance, and just can be provided at can utilizable damagedly emergency light when the violent disaster yet.
In addition, because the response characteristics of LED is better, so can be used as utilizing the transmission source of the data of light to be used by control light on and off or light quantity.Emergency light carries storage battery in inside, even also continue under because of the situation of power cut such as disaster luminous.Utilize this luminous light just can when unusual, send the emergency exit of preserving in advance or the stair of taking refuge the position demonstration or to the route of taking refuge of emergency exit etc., all information when unusual.About the function of this transmission data, compare with the situation of the transmitting apparatus that electric wave or infrared ray etc. are set separately and also not spend cost, can't be with too big electricity consumption, so can not damage function luminous and so on when unusual as emergency light.
And then the in a single day bright lamp of emergency light just can not turned off the light semipermanently, therefore can not be subjected to weather or seasonal effect, is arranged on noticeable place.For this reason, be not only non-common information and also can send general information such as advertisement on every side or guide, can expect when unusual, to utilize continually in addition, and improve the surcharge of emergency light.
＜the 8 invention 〉
Then as the 3rd application examples, just the application's the 8th invention describes.Though in foregoing invention,, in this application's the 8th invention, represent the example that is arranged at the control of the illuminating lamp on the road and utilizes this illuminating lamp to communicate also as how many records to some extent of application examples.
The purpose of road lighting is to become bright on the road by making, and guarantees the safety of vehicles or pedestrians and comfortable passing through, and then also is used for the criminal of preventing.Fluorescent lamp, Halogen lamp LED, sodium vapor lamp etc. are generally used in illumination on the road.In addition, also studied recently longer service life LED semiconductor light-emitting elements such as (Light Emitting Diode) illumination and be provided with actually.They from electrical efficiency, the lightness of light, be easy to see, viewpoint such as life-span and being adopted, extensively utilized from the Ordinary Rd to the expressway according to the characteristic of separately illumination, on road, be configured every several 10 meters.
Generally speaking, continue for a long time to use, can frequently not carry out light on and off in case such a illumination is as if bright lamp mostly.For example then turn off the light if become bright as if the then bright lamp of deepening.In addition, used for a long time day and night in the place as the tunnel.
On the other hand, traffic signals irrespectively develop with road lighting.Its objective is for vehicle on the road or people's traffic is rectified.So owing to fixedly install at the parting of the ways or crossing etc. just has mobile model that road construction uses etc.They are different with road lighting, change color like this or carry out light on and off to blue, yellow from red.Be to utilize the white heat bulb for this reason, in the past, also utilized LED recently.Require in utilization that easy light on and off and electrical efficiency are good, the life-span is also long as traffic signals.Though as the white heat bulb of light source on electrical efficiency than other light sources difference, owing to its light on and off are utilized.Recently, light on and off, electrical efficiency and then long-life LED will replace it.
Distinguished according to the characteristic of light source respectively with the used white heat bulb of used fluorescent lamp, Halogen lamp LED, sodium vapor lamp etc. and traffic signals etc. as road lighting in the past and used.In addition because such differentiation uses event that the idea of road lighting and traffic signals dual-purpose and so on was not existed in the past.
Accident on the road all has many numbers to be reported every year, but that later processing takes place accident is also very important.This is in order to prevent further accident, not cause traffic jam.Traffic signals are set at crossroad or crossing etc. as described above, carry out the traffic in set place and rectify, but on the way taken place this not to be carried out the function that traffic is rectified unusually under the unusual situation such as accident.Therefore after accident just takes place the present situation that follow-up vehicle is noted voluntarily exactly in the past.If have accident declaration soon the police be on the scene and carry out traffic and rectify.But, because before this safety has to depend on individual's attention, so for example cause that the possibility that takes place once more of the accident of running into accident vehicle, knocking into the back at the end of the obstruction of following accident and so on is very high.
Generally speaking there is under the situation that accident has taken place party wait and burns combustion tube, inform accident such as the follow-up vehicle method that calls attention to.But actual conditions are that combustion tube does not utilize easily.In addition, just dangerous near flammable thing because combustion tube emits on fire or cigarette, the situation that also has cigarette to obstruct the view.And then, so owing to be that lower position can't be noted from a distant place.In addition, can't carry out the shortcoming of remote operation etc. and so in addition.
Not to utilize combustion tube but that the situation of reflecting plate is set at the rear of accident vehicle etc. is also more.But, since be positioned over the situation nearby of accident vehicle more, be placed in lower position, just have and can't see, if keep off the problem that the front just can not the understanding accident and so on from a distant place.In addition, so because reflecting plate is that the people is provided with the problem that can't carry out remote operation and so in addition.
Hazard lamp as the method automobile that arouses at the accident generation or the attention of follow-up car is simple method.But vehicle self can't utilize lamp because of accident etc. sometimes.In addition owing to be arranged in the car body scope of automobile, so though can identification from several follow-up and peripheral automobiles etc., from a distant place or the behind of large car etc. can't identification situation more.So in addition in the case owing to operate by the people at separately automobile etc. and can't carry out remote operation.
In addition, the signalling that hand signal or plain type are set if the police is on the scene carries out the traffic rectification.But the back need take place from carryings such as police office in accident in the signalling of plain type, does not have adaptability for accident.In addition, can't carry out remote operation owing to plain type.
On super expressway or main line road etc., the configuration information display panel shows accident information or blockage information etc., and the user can visually obtain information.The information that shows sends to message panel by remote operation mostly.But because this message panel drives row setting into above-mentioned illumination or traffic signals five equilibrium, so the cost cost, it is provided with number and compares with illumination or traffic signals etc. also and do not lack comparably in addition.For this reason, utilize just the obtaining of information of message panel that very restricted and so on problem is arranged.
Illuminating light communication did not have to consider the application to as described above traffic system in the past, in the application's the 8th invention, represented that it is suitable for example.
Figure 58 is the block diagram of the 1st execution mode of the road lighting control system of expression the application the 8th invention.Among the figure, the 801st, abnormity detection portion, the 802nd, lighting control section, the 803rd, illuminating lamp.Detecting unusually on 801 pairs of roads of abnormity detection portion.For example emergency call can be set on super expressway, the use by the user of this emergency call detects as unusual the generation, perhaps indicates unusual generation at the central monitoring position corresponding to this phone by the operator.To indicate the situation of unusual generation to police's etc. circular as opportunity equally in addition.Perhaps, the monitoring arrangement that also can constitute by road is monitored detects unusually.
It is a plurality of that illuminating lamp 803 and general set illuminating lamp equally on the way are provided with, and when dark road thrown light on.Meanwhile, can constitute like this according to illuminations such as the control control of carrying out light on and off control or fader control or light color from the indication of lighting control section 802.Light source and in the past mercury vapor lamp etc. are different, use the light source below the several seconds of replying to the change of light on and off or light quantity.For example wish it is LED or LD semiconductor light-emitting elements such as (LAser Diode) as such light source.For example using mixing 3 coloured light to make under the situation of LED as light source of its mode of sending white light, just can easily change illuminant colour.
Figure 59 is the key diagram of an example of the illumination form of the illuminating lamp when taking place unusually.The 811st, the scene of the accident, the 812nd, emergency call device, 813～818th, illuminating lamp.In the example shown in Figure 59, be illustrated in the example under the situation of the accident that taken place on the super expressway, with * scene of the accident 811 represented.The emergency call device 812 that is set at curb side strip in this example is realized the function of abnormity detection portion 801, if accident party or other the 3rd usefulness emergency call device 812 are then passed to lighting control section 802 from this emergency call device with accident with the center etc. of passing to of accident.
As illumination control, for example can be for the nearest illuminating lamp 813 in the distance scene of the accident 811,814 glimmer soon passes to the driver with the scene of the accident 811 with regard to nigh situation, carrying out slow light on and off for illuminating lamp 815,816 passes to the driver with the scene of the accident 811 with regard to situation in front and controls like this.Perhaps, the control of look if illuminating lamp can throw light on, then can also be for example for the nearest illuminating lamp 813 in the distance scene of the accident 811,814 make the illumination look be altered to redness passes to the driver with the scene of the accident 811 with regard to nigh situation, for 815,816 of illuminating lamps is that the illumination look is altered to and yellow notes controlling like this to arouse the driver.
By carrying out the illumination control of such illuminating lamp, just can urge from the driver near the vehicle of the scene of the accident here and noting, can make its performance function as a kind of traffic signals.Particularly because illuminating lamp is set up on the way higher position, so even also identification well from a distant place.Because such illumination control can be carried out after accident takes place immediately, need not wait for police's arrival so can prevent second accident by calling attention to.In addition, so because illuminating lamp is configured road users such as different generation can being passed to meticulously the driver every several 10 meters.Because illuminating lamp generally is set on the road, do not need so can effectively utilize the infrastructure of having built up to be provided for separately to inform accident generation etc. to driver's display unit etc.
In addition, illumination control is not limited to above-mentioned example.The number of illuminating lamp or the position that for example constitute illumination group all are arbitrarily, can also make up except light on and off light quantity is changed or changes the look that throws light on etc., all means of illuminations with the change of light on and off or light quantity.Particularly, so especially dangerous owing to illuminating lamp being extinguished the illumination that just can not guarantee on the road at night.Under these circumstances for example every one to the illuminating lamp control of throwing light on, perhaps carry out light on and off control alternately to guarantee that illumination on the road is for well.
In addition,, for example also can constitute after having carried out circular, come guidance lighting control from the center by 812 pairs of centers of emergency call device etc. though the illumination control of carrying out illuminating lamp by the operation of emergency call device 812 has been described in above-mentioned example.In addition, except emergency call device 812, like this too under the situation of with monitor camera etc. accident etc. being discerned or being judged by the operator.And then, can also be according to for example from herald's information or judge the scale etc. of accident from the information of monitor camera, if the then only illumination control that calls attention to of indication such as minor accident or fault car.
In addition, except accident as described above took place, for example nearby accident was also more at the rear portion of blocking, and can also note to arouse the driver in this illumination control of carrying out illuminating lamp nearby.Can also be substituted in equally the attention lamp is set between the construction area separately, perhaps with note lamp etc. and usefulness, control by the illumination of illuminating lamp and call attention to.
And then, can also under the situations such as generation of the generation of crime or disasters such as acute disease people's generation, fiery thing, carry out the illumination control of illuminating lamp with the purpose of direct emergency vehicle.In the case, throw light on the control in that the place periphery takes place equally except with accident the time, the control of can also throwing light on to the illuminating lamp in the place ahead of travelling of emergency vehicle informs that to general vehicle the approaching of emergency vehicle constitutes like this.For example according to from the electric wave of emergency vehicle or from the throw light on illumination group of control of the selections such as guiding at center, the control of throwing light on gets final product.
Figure 60 is the summary pie graph of the 2nd execution mode of the road lighting control system of expression the application the 8th invention.Among the figure, the part identical with Figure 58 added identical symbol, and also the repetitive description thereof will be omitted.The 821st, vehicle, the 822nd, light accepting part, the 831st, pedestrian, the 832nd, portable terminal device.Just can be as above-mentioned the 1st execution mode to information such as reception and registration such as driver call attention to by the illumination control of carrying out illuminating lamp 803.If carry out the communication that such illumination control just can be used in the illumination light by means of illuminating lamp 803 information at high speed.Illumination light is very large power, comes transmission information just can communicate by letter reliably by using it.
If the light-emitting device as illuminating lamp 803 uses semiconductor light-emitting elements such as LED or LD just can carry out the control of light on and off or light quantity very at high speed.Under the situation of the control of carrying out light on and off or light quantity with the speed more than the speed to a certain degree, thus since people's eyes can't the perception light on and off or the change of light quantity feel that illuminating lamp 803 is continuous bright lamps, just can realize the function as road lighting.In addition, use up, so can communicate to the communication speed more than the number 100MHz with the degree of seeing clearly from people's eyes (below the number Hz) with regard to communication speed owing to make.
In the 2nd execution mode, give information to be sent to lighting control section 802.Then, according to this transmission information, light on and off or the light quantity or the color etc. of 802 pairs of illuminating lamps 803 of lighting control section are controlled, and Lighting Division 3 is sent according to the illumination light that sends after information via is modulated.
On the other hand, can on the vehicle 821 that just travels in the road, light accepting part 822 be set, accept after being transformed into electric signal, to transfer to obtain the information of sending from illuminating lamp 803 by separating from the light of illuminating lamp 803 emissions.Because generally speaking illuminating lamp 803 is to make to become not dark on the road and dispose like this, if so in a plurality of illuminating lamps 803, send identical information by illumination light, even vehicle 821 also can be obtained information by the illumination light from different illuminating lamps 803 under steam.For example can carry out the dispensing of program information such as transport information, news, music.
Same in addition, carrying pedestrian 831 under the situation of portable terminal device 832, by accepting just can obtain the information of sending here from illuminating lamp 803 from the illumination light of illuminating lamp 803 with this portable terminal device 832 with light accepting parts such as cameras.Sending under the situation of pedestrian 831 information, because the zone of illuminating lamp 803 illuminations is not broad like that, so also can change the information that will send one by one, narrow region is relatively communicated one by one by illumination group by one and even several illuminating lamps 803.Even pedestrian 831 is in moving, owing to want spended time from moving under next illuminating lamp 803 under certain illuminating lamp 803, so just can communicate and can on the way not be interrupted so long as not the situation of transmitting bulk information.For example consider the positional information of illuminating lamp 803 or cartographic information on every side etc. is provided and delivered, perhaps the information of near shop it or public institution etc. is provided and delivered etc.Certainly, the information that sends from illuminating lamp 803 is arbitrarily, is not limited to these examples.
In addition, can also for example as being willing to put down in writing in 2003-4560 number, Japanese patent application laid utilize the two-way communication of light by in illuminating lamp 803, light accepting part being set.Utilize the internet just to become possibility by carrying out two-way communication under steam by vehicle 821.In addition, owing to can obtain, so also can carry out interlock with traffic control or traffic monitoring system from the replying of vehicle 821.
In addition, can also carry out simultaneously can more effectively applying flexibly illuminating lamp 803 to driver's etc. the illumination that calls attention to control with in the illustrated illumination control that is used for message transmission of the 2nd execution mode as being used for illustrated in above-mentioned the 1st execution mode.
Generally speaking the light from illuminating lamp 803 irradiations just reduces along with leave its light quantity from illuminating lamp 803.If common road lighting is not then just tolerated as long as have obstacle light quantity to a certain degree to reduce to the driving of walking or vehicle etc.But, as illustrated in above-mentioned the 2nd execution mode, utilizing illumination light to communicate under the situation, the deterioration of the communication quality that causes with regard to the reduction of worrying because of light quantity.For this reason, prevent as far as possible that also light quantity from reducing such formation even just wish to leave from illuminating lamp 803.
Figure 61 is the summary sectional view of an example of substrate shape of the luminous component of expression illuminating lamp.Among the figure, the 841st, substrate, the 842nd, semiconductor light-emitting elements.Though generally under the situation of throwing light on, use most semiconductor light-emitting elements 842, here these most semiconductor light-emitting elements 842 be installed on the substrate 841 to be assembled into illuminating lamp 803.At this moment, if establish substrate 841 for the plane then from the light of semiconductor light-emitting elements 842 radiation just substantially towards the direction vertical with substrate 841.For this reason, though bright if leave just reduction of light quantity under illuminating lamp 803 from illuminating lamp 803.
In the application's the 8th invention, shown in Figure 61, make substrate 841 bendings like that for this reason.Particularly on the direction of the extension of road etc., it is bent into.If the semiconductor light-emitting elements 842 that like this substrate 841 bendings then is installed on the substrate 841 just is radial towards different directions.For this reason, not only under illuminating lamp 803, the direction around it is from the light of semiconductor light-emitting elements 842 also direct irradiation, the light quantity reduction under the situation that just can suppress to leave from illuminating lamp 803.
And then then also elongated to the distance on road surface from the semiconductor light-emitting elements 842 as light source as if leaving from illuminating lamp 803, light quantity reduces.For the light quantity that prevents to cause because of this distance reduces, for example the end the closer to substrate makes directive property narrow more, light is arrived constitute like this even make to tail off from the diffusion of the light of semiconductor light-emitting elements 842 radiation.Say simply, from the light of semiconductor light-emitting elements 842 radiation that surpass from the angle under the illuminating lamp 803 ± disposed on the part of the substrate 841 of δ degree, make its directive property become narrow and constitute like this for for example.Certainly, also can constitute along with under angle become big, make directive property become narrow lentamente.
According to this formation, even if from the position that illuminating lamp 803 leaves, so can suppress the light quantity reduction because the light after making directive property narrow arrives.Thereby, even leave also and can carry out high-quality communication by light from illuminating lamp 803 from illuminating lamp 803.
In addition, the control example of this directive property changes the encapsulation of separately semiconductor light-emitting elements 842 as considering, perhaps makes the Transparent lamp shade of street lamp 3 have lens function etc.
Like this, according to the application's the 8th invention, the lighting devices of on the way most settings are used in illumination purposes in addition, for example carry out the light on and off of illuminating lamp or the color control of fader control or illumination etc., thus just can be between accident generation or obstruction, construction area etc., promptly current people or vehicle are called attention to, prevent accident and realize traffic smoothly simultaneously.In addition, the light on and off that can be by carrying out illuminating lamp or the color control of fader control or illumination wait carries out transmission of Information, just can provide all information to the user of road thus.
In addition, use at light source under the situation of most semiconductor light-emitting elements, by making the curved substrate that this semiconductor light-emitting elements is installed, even if under situation about leaving, also can suppress the light quantity reduction and keep high-quality communication from illuminating lamp as illuminating lamp.
＜the 9 invention 〉
Then as the 4th application examples, just the application's the 9th invention describes.In this application the 9th invention, be illustrated in the example of communicating by letter that utilizes light between moving body such as train and the ground.
As moving bodys and communicator on the ground such as binding trains, used wireless mode in the past.Generally in used method such as portable phone, the base station is set, and between this base station and mobile radio station, communicates.But, so owing in the tunnel, waiting electric wave to be interdicted and can't communicate.For this reason, for example in phone etc., there is conversation to be interrupted or carrying out the problem that session under the situation of data communication is cut off and so on.In addition, so because electric wave can not improve transmission speed greatly according to the range attenuation with the base station.And then influence, the communication quality of also being decayed etc. are so not good.
In the Shinkansen etc. on the line or the circuit next door lay leakage coaxial cable (LCX:Leaky Coaxial Cable), be used in the communication of public telephone.This leakage coaxial cable has utilized and has crossed the high-frequency current and the character of radiated electromagnetic wave around at the cable upper reaches.Because this leakage coaxial cable lays near the trains such as the Shinkansen that travel,, can carry out high-quality communication so the attenuation that causes because of distance does not change like that.Also lay leakage coaxial cable and just can communicate if in the tunnel, wait in addition.But, so, have the shortcoming of remarkable deterioration of communication characteristic and so on owing to the reflection of the electric wave that causes at tunnel Nei Fashengyin metope is subjected to the influence of multipath decline stronger.In addition, also be the 2.6MBps degree about communication speed, wish further high speed.
Along with the improvement of in recent years network technology, advocate and construct the ubiquitous a networked society that can whenever communicate anywhere.As the communicator of undertaking so ubiquitous a networked society, communication speed, communication quality are all not enough in the past communicator as described above, and people wait in expectation can be with further high speed, the high-quality communication technology that communicates.
On the other hand, utilize optical fiber for the communication of carrying out the high-speed high capacity between fixed radio station.The technology of optical fiber is the technology that is used to suppress transmission loss in general optical fiber, and people make the light of optical fiber institute outgoing arrive sensitive side as possible as far as possible.For this reason, in optical fiber communication, constitute the leakage of doing one's utmost to suppress light.
As with this general different optical fiber of optical fiber communication, for example as putting down in writing at Japan Patent Publication Laid-Open 2001-133652 communique, the leakage optical fiber that light leaks from the surface of optical fiber has been developed, on exploitation way, various ways is arranged.In Japan Patent Publication Laid-Open 2001-133652 communique, put down in writing this leakage optical fiber be used to guide usefulness, perhaps decorate with, as the intention of light guide, and then, also record and can be used as communication with the intention of utilizing.But, though as communicating by letter with utilizing, about the not record fully of what use is made of leakage optical fiber.Optical fiber is utilized between fixed radio station as described above, but is utilizing under the situation that form uses leakage optical fiber with this, and the leakage of light just becomes transmission loss, just causes the deterioration of communication quality.For this reason, not only leakage optical fiber can't be used in the communication between fixed radio station in the past, in fact just the example that does not use leakage optical fiber to communicate.
Figure 62 is the summary pie graph of an execution mode of expression the application the 9th invention.Among the figure, the 911st, moving body, the 912nd, light accepting part, the 913rd, demodulation section, the 914th, modulation portion, the 915th, illuminating part, the 916th, leakage optical fiber, the 921st, network, the 922nd, signal control part, the 923rd, illuminating part, the 924th, leakage optical fiber, the 925th, light accepting part.Moving body 911 moves on certain path, for example considers train or carrier etc., and the application's the 9th invention is not limited to these.Establishing moving body 911 as an example here describes for train.
On the path that moving body 911 moves, the leakage optical fiber 924 of appropriate length lays along the path of moving body 911.For example in circuit, lay as the track of train, perhaps can also limit, online roadside or the sidewall of sound proof panel etc. or if electric car then lays with stringing.
Leakage optical fiber 924 can use the optical fiber put down in writing in the above-mentioned Japan Patent Publication Laid-Open 2001-133652 communique or all optical fiber of the characteristic with leak light in addition.Article 1, leakage optical fiber 924, for example if moving body 911 length that to be the then tens of m of train above for well.Decay that consideration causes because of the leakage of light etc. decides per 1 lay length to get final product.In addition, leakage optical fiber 924 also can lay and becomes to make that a part repeats to make it the crack not occur between the luminous zone except laying Cheng Yilie.
Be provided for light signal is delivered to the illuminating part 923 of leakage optical fiber 924 at an end of leakage optical fiber 924, carry out drive controlling by signal control part 922.Can use for example laser diode (LD:Laser Diode) or LED (Light Emitting Diode) etc. as illuminating part 923.Particularly LD has sharp-pointed directive property for preferred.All have the high-speed responsive characteristic in either case, modulate by the control of carrying out ON/OFF or light quantity by signal control part 922 at high speed, can be to leakage optical fiber 924 emergent light signals.
In addition, network 921 can be made of channel arbitrarily, is wired telecommunication cable etc.Certainly, also can be connected to the backbone network of internet etc. by this telecommunication cable.
It is roughly relative with the leakage optical fiber 916 that is arranged at moving body 911 that light accepting part 925 is configured to, and accepts the light that leaks from leakage optical fiber 916 and be transformed into electric signal, passes to signal control part 922.Can use photodiode photo detectors such as (PD:Photo Diode) as light accepting part 925.
On the other hand, on moving body 911, be provided with light accepting part 912 and demodulation section 913, be provided with modulation portion 914 and illuminating part 915, leakage optical fiber 916 as the formation that is used to the information that sends in addition as the formation that is used to the information that receives.Light accepting part 912 is configured to the leakage optical fiber 924 that roughly lays along mobile route vis-a-vis, accepts the light signal that leaks from leakage optical fiber 924 and is transformed into electric signal.This light accepting part 912 also can use photo detectors such as PD equally with above-mentioned light accepting part 925.
The signal that electric signal was accepted and be transformed into to 913 pairs of demodulation sections by light accepting part 925 carries out demodulation, the information of being sent here to obtain.Information after the process demodulation is sent to computer or the network in the moving body 911.
The information that sends from moving body 911 is passed to modulation portion 914, and modulation portion 914 is carried out drive controlling so that the ON/OFF of illuminating part 915 or light quantity change according to the information that will send.Illuminating part 915 and above-mentioned illuminating part 923 equally can enough LD or LED etc. constitute, according to the drive controlling of utilizing modulation portion 914 light signal is passed out to leakage optical fiber 916.
Leakage optical fiber 916 is same with above-mentioned leakage optical fiber 924, is provided with along the moving direction of moving body 911.Then, will leak from its surface from the light signal that illuminating part 915 is sent.
Figure 63 is the key diagram of an example of the action when the moving body 911 transmission information (down link) that the application the 9th invents in the execution mode.According to the information of moving body 911 of giving to be sent that receives from network 921 in advance illuminating part 923 is carried out drive controlling if moving body 911 is come on the leakage optical fiber 924 then signal control part 922, the light signal after ovennodulation is sent to leakage optical fiber 924 from illuminating part 923.
Advance leakage optical fiber 924 from the light signal of illuminating part 923 radiation, a part spills from the surface of leakage optical fiber 924.If the light accepting part 912 of moving body 911 is come on the leakage optical fiber 924, then light accepting part 912 is accepted the light signal that leaks from leakage optical fiber 924 and is transformed into electric signal shown in Figure 63 (A).Then, the light signal that is transformed into electric signal at light accepting part 912 can be carried out demodulation to obtain information with demodulation section 913.
For example be laid under the situation of track of circuit etc. at leakage optical fiber 924, light accepting part 912 is set under the floor of moving body 911.Generally speaking owing to shining light on every side such as sunlight or street lamp in orbit, so be easy to be subjected to the influence of these stray lights from the light signal of leakage optical fiber 924 leakages.But moving body 911 covers track under the situation that has moving bodys 911 such as train.Therefore, the light accepting part 912 of leakage optical fiber 924 and moving body 911 enters the shade of moving body 911, forms very dark state.Thereby the influence that can significantly alleviate the stray light etc. of sunlight or street lamp etc., can carry out high-quality communication, communication speed can also be improved.Certainly, even under the situation beyond leakage optical fiber 924 is laid in track, for example light signal and ambient light one are reinstated light accepting part 912 and are subjected to light, for example take in the signal processing afterwards to detect etc. with difference of ambient light etc., the common countermeasure at stray light just can detect light signal thus.In addition, moving body 911 is an electric car etc., though electromagnetic noise takes place continually because flash of light waits, light signal can not be subjected to this electromagnetic noise influence communicate.And then, even in the tunnel, wait the influence that also can not be decayed, compare with the situation of utilizing electric wave in the past and just can especially carry out high-quality communication, also can carry out high-speed communication in addition.
Moving body 911 former states are travelled in orbit.For example (A) from Figure 63 drives to (B).Therebetween, though light accepting part 912 also moves in the moving of moving body 911, with the distance of the leakage optical fiber 924 that on the moving direction of moving body 911, extends can very big change.In addition, because leakage optical fiber 924 spills wide the causing equally of institute's incident, so even moving body 911 moves, the intensity of the light signal that the light accepting part 912 of moving body 911 is accepted does not change like that yet.Thereby, even but moving body 911 moves also that former state continues to keep high-quality, high-speed communication.
If the end that moving body 911 further continues to move with regard to surpassing 1 leakage optical fiber 924 moves, but in the case by accepting the reception of the information of just can proceeding from the leak light of next leakage optical fiber that is laying 924.At this moment, for example just can not interrupt if make the leakage scope of the light of leakage optical fiber 924 repeat then to communicate by letter.
So, just can carry out sending (down link) to the information of moving body 911.In addition, under the situation of shown in Figure 62, laying a plurality of leakage optical fibers 924, can at random control which illuminating part 923 is carried out drive controlling.If for example train is then with the control system interlock at road junction etc. or survey train equally and get final product near the drive controlling of beginning illuminating part 923.In addition, under the situation of carrying out two-way communication between the moving body 911, also can survey situation about accepting from the light signal of moving body 911, begin the drive controlling of this illuminating part 923 with the light accepting part 925 of one or more fronts shown in Figure 62.Certainly, also can often carry out drive controlling to illuminating part 923 according to information.
One routine key diagram of the action when Figure 64 is moving body 911 transmission information (up link) from an execution mode of the application the 9th invention.Under the situation of the up link that sends information from moving body 911, also can similarly communicate with above-mentioned downlink scenario.In moving body 911,, carry out the drive controlling of illuminating part 915, light signal is shone in the leakage optical fiber 916 by the information after ovennodulation with modulation portion 914 modulation information to be sent.Advance leakage optical fiber 916 from the light signal of illuminating part 915 outgoing, a part spills from the surface of leakage optical fiber 916.
Like that if outside light accepting part 925 is come in the zone that the light of the leakage optical fiber 916 of moving body 911 spills, then light accepting part 925 is accepted the light signal that leaks from leakage optical fiber 916 and is transformed into electric signal shown in Figure 64 (A).Then, just can carry out demodulation to obtain information at the light signal that 922 pairs of signal control part have been transformed into electric signal.
Also the situation with above-mentioned down link is identical under this information transmission (up link) situation from moving body 911, for example under leakage optical fiber 924 is laid in the situation of tracks such as circuit, can in the shade of moving body 911 self, communicate, can alleviate the influence of stray light.In addition, so can carry out high-quality, high-speed communication because the influence of electromagnetic noise or decay etc. is less.
Moving body 911 former states are travelled in orbit.For example (A) from Figure 64 drives to (B).In the case, opposite with the situation of above-mentioned down link, leakage optical fiber 916 moves in the moving of moving body 911.But the leakage optical fiber 916 of moving body 911 can great changes with the distance that is arranged at outside light accepting part 925.In addition, because leakage optical fiber 916 spills wide the causing equally of institute's incident, even change so moving body 911 moves the position of the leakage optical fiber 916 relative with light accepting part 925, the intensity of the light signal that outside light accepting part 925 is accepted does not change like that yet.Thereby, even but moving body 911 moves also that former state continues to keep high-quality, high-speed communication.
Like this, just can carry out the transmission (up link) of information from moving body 911.In addition, and then under the situation that moving body 911 moves as long as by the light signal of accepting with next other light accepting part 925 that predetermined distance was disposed to leak from the leakage optical fiber 916 of moving body 911.Light accepting part 925 is configured with interior interval with the length of the leakage optical fiber 916 that is arranged at moving body 911 and gets final product.
Utilize by the communication of making up above-mentioned down link and up link, just can and moving body 911 between carry out two-way communication.Except the traffic use such as operational management of train, for example can utilize networks 921 such as internet from terminal installation by the user by bus to moving body 911.It can certainly be the formation that realizes one-way communication by only unidirectional formation.For example can also be the broadcast-type system that information is delivered to the only down link of moving body 911 of constructing, map information is distributed to the utilization of each moving body 911 grade and so on.
As described above, moving body 911 is roughly same with the formation of ground upside in the application's the 9th invention.That is, have leakage optical fiber and illuminating part and illuminating part is carried out the formation of drive controlling, have light accepting part and demodulation section gets final product as the formation of receiver side as the formation of transmitter side.So can make information send with the communication speed when the information transmission of moving body 911 roughly the same to moving body 911 because formation is identical.Communication speed all also is possible more than 1GBps in up link and down link by leakage optical fiber is thought hard.Can guarantee sufficient communication speed even if for example utilize under the situation of outside network 921 passenger 100 people to communicate simultaneously also with 10MBps the passenger of moving body 911 as described above.
Like this,, utilize light,, and realize mobile communicating high-quality, at a high speed because of its characteristic can be got rid of the influence of decay or the influence of electromagnetic noise as the medium of radio communication according to the application the 9th invention.In addition, all can communicate two-way can identical communication speed communicating by same formation to the transmission (down link) of the information of moving body and from the transmission (up link) of the information of moving body.And then, for example can communicate with dark state in the shade at train communicating etc. under the situation in the floor of train and on the circuit, just the influence of stray light especially can be reduced and carry out high-quality communication.According to the application's the 9th invention, just obtain all effects that can't realize as described above such as in the mobile communicating that utilizes electric wave in the past.
More than, just the application's the 1st to the 9th invention is illustrated.But need not superfluous words the present invention and be not limited to the scope that they are recorded and narrated, also can carry out various distortion.
Claims (100)
1. broadcast system is characterized in that having:
The led light source that is used to throw light on;
Be used for power line to this led light source supply capability;
To a plurality of information modulate with demultiplexing after make it overlapping and pass out to the information modulating device of this power line with power waveform; And
Separate one or more selectively a plurality of information after ovennodulation from power line and control the light quantity of above-mentioned led light source or the filter apparatus of light on and off,
Wherein, variation or the light on and off according to the light quantity of above-mentioned led light source come transmission information.
2. according to the described broadcast system of claim 1, it is characterized in that: above-mentioned filter apparatus has the choice device that is used to select information.
3. according to the described broadcast system of claim 2, it is characterized in that: above-mentioned choice device is selected according to the variation of the light quantity of led light source or the information that light on and off send according to the indication information on the above-mentioned power line.
4. according to the described broadcast system of claim 1, it is characterized in that: light quantity or the light on and off to above-mentioned led light source under the multiplexed state of a plurality of information vias of above-mentioned filter apparatus are controlled, and carry out the selection of information at the receiver side device of accepting from the light of this led light source.
5. according to the described broadcast system of claim 1, it is characterized in that: with a plurality of information demultiplexings, above-mentioned filter apparatus is selected one and separate information from the different separately a plurality of band pass filters of frequency band to above-mentioned information modulating device by frequency division.
6. according to the described broadcast system of claim 1, it is characterized in that: above-mentioned information modulating device is cut apart with a plurality of information demultiplexings and in additional marking information on the information after the over-segmentation by the time and is sent, and above-mentioned filter apparatus comes identifying information and separate information selectively according to above-mentioned label information.
7. one kind is utilized the electric power of being supplied with to come bulb luminous and that throw light on, it is characterized in that having:
The led light source that is used to throw light on; And
A plurality of information after ovennodulation of the electric power of supplying with from being overlapped in are separated one or more selectively and are controlled the light quantity of above-mentioned led light source or the filter apparatus of light on and off.
8. bulb is characterized in that:
Above-mentioned electric power is to exchange, and the AC/DC converting means that exchange conversion is become direct current is set, and the electric power that will be overlapped in the informational content that above-mentioned filter apparatus separated by the direct current of above-mentioned AC/DC converting means institute conversion drives above-mentioned led light source.
9. illuminating light communication device is characterized in that having:
Luminous and throw light on lighting device;
Data-driven is controlled the flicker or the modulating device of light quantity so that illumination light is modulated of above-mentioned lighting device; And
The infrared rays receiver of the light modulated that acceptance is sent here from the outside,
Wherein, send data, and receive data by above-mentioned infrared rays receiver according to the illumination light that above-mentioned lighting device sent.
10. according to the described illuminating light communication device of claim 9, it is characterized in that:
Above-mentioned lighting device is made of one or more LED.
11., it is characterized in that according to claim 9 or the described illuminating light communication device of claim 10:
Above-mentioned infrared rays receiver is accepted infrared light as above-mentioned light modulated.
12., it is characterized in that according to claim 9 or the described illuminating light communication device of claim 10:
Above-mentioned infrared rays receiver is accepted visible light as above-mentioned light modulated.
13., it is characterized in that according to claim 9 any described illuminating light communication device to the claim 12:
Above-mentioned infrared rays receiver is a dimension sensor.
14. an illuminating light communication device is characterized in that having:
Acceptance according to the illumination light of data after ovennodulation to obtain the infrared rays receiver of above-mentioned data; And
Send light-emitting device according to data to be sent light after ovennodulation.
15., it is characterized in that according to claim 9 or the described illuminating light communication device of claim 10:
Above-mentioned light-emitting device sends infrared light.
16., it is characterized in that according to claim 9 or the described illuminating light communication device of claim 10:
Above-mentioned light-emitting device sends visible light.
17., it is characterized in that according to claim 14 any described illuminating light communication device to the claim 16:
Above-mentioned light-emitting device has the tracking means of luminous light towards the infrared rays receiver of outside.
18. an illuminating light communication device is characterized in that having:
Acceptance according to the illumination light of data after ovennodulation to obtain the infrared rays receiver of above-mentioned data; And
Reflect above-mentioned illumination light and send according to data to be sent catoptrical reflection modulation device after ovennodulation.
19., it is characterized in that according to the described illuminating light communication device of claim 18:
Above-mentioned reflection modulation device comprises one or more corner reflectors and constitutes, and sends reverberation towards the light source of above-mentioned illumination light.
20., it is characterized in that according to claim 18 or the described illuminating light communication device of claim 19:
Above-mentioned reflection modulation device is modulated by optical gate.
21., it is characterized in that according to the described illuminating light communication device of claim 19:
Above-mentioned reflection modulation device changes by the reflecting surface that makes above-mentioned corner reflector to be modulated.
22., it is characterized in that according to the described illuminating light communication device of claim 18:
Above-mentioned reflection modulation device has,
Arranged the corner modulation array of a plurality of corner reflectors;
Be configured to image in the lens of above-mentioned corner modulation array; With
One or more corner reflectors in the above-mentioned corner modulation array are controlled one by one the modulating device of catoptrical modulation.
23., it is characterized in that according to the described illuminating light communication device of claim 22:
Above-mentioned modulating device is an optical gate.
24., it is characterized in that according to the described illuminating light communication device of claim 22:
Above-mentioned modulating device changes by the reflecting surface that makes above-mentioned corner reflector to be modulated.
25. an illuminating light communication device is characterized in that having:
Luminous and throw light on lighting device;
Data-driven is controlled the flicker or the modulating device of light quantity so that illumination light is modulated of above-mentioned lighting device;
Send the communicator of above-mentioned data by the optical communication mode beyond the illumination light; And
According to the bright lamp of above-mentioned lighting device and the switching device shifter of the action of switching above-mentioned modulating device and above-mentioned communicator of turning off the light,
Wherein, above-mentioned switching device shifter switches so that above-mentioned communicator moves when above-mentioned lighting device is turned off the light.
26., it is characterized in that according to the described illuminating light communication device of claim 25:
Above-mentioned communicator sends above-mentioned data by infrared communication.
27., it is characterized in that according to the described illuminating light communication device of claim 26:
Above-mentioned lighting device is made up of a plurality of LED elements, and above-mentioned LED including components therein has the infrared light light-emitting component portion that optionally sends infrared light, and above-mentioned infrared light light-emitting component portion is utilized as above-mentioned communicator.
28. an illuminating light communication device is characterized in that having:
Luminous and throw light on lighting device; And
Data-driven is controlled the flicker or the modulating device of light quantity so that illumination light is modulated of above-mentioned lighting device,
Wherein, above-mentioned modulating device is supplied with the required sufficient electric power that throws light on to above-mentioned lighting device according to bright lamp and the switching of turning off the light indication on one side when the bright lamp and is carried out on one side modulating control accordingly with above-mentioned data, carries out modulating control accordingly with above-mentioned data when turning off the light so that above-mentioned lighting device communicates the flicker that institute must degree.
29. an illumination component that sends illumination light is characterized in that, comprising:
Send the illumination light-emitting element portion of the white light that is used to throw light on; And
Send the infrared light light-emitting component portion of the infrared light that is used for infrared communication.
30., it is characterized in that according to the described illumination component of claim 29:
Above-mentioned illumination light-emitting element portion drives and can utilize communicating by letter of illumination light by modulating with above-mentioned infrared light light-emitting component portion difference.
31., it is characterized in that according to claim 29 or the described illumination component of claim 30:
Above-mentioned illumination light-emitting element portion is made up of red, blue, green light-emitting component portion, and above-mentioned infrared light light-emitting component portion and each light-emitting component portion are configured side by side.
32., it is characterized in that according to claim 29 or the described illumination component of claim 30:
Above-mentioned illumination light-emitting element portion by the light-emitting component portion of indigo plant or ultraviolet light and be arranged at this light-emitting component portion around fluorescer constituted.
33. an illuminating light communication mode of utilizing illumination light to transmit information is characterized in that having:
The light source of the light that radioluminescence is used;
The light source control device that light modulated is radiated by light on and off or light quantity according to the above-mentioned light source of information Control to be sent;
The optical fiber that makes the light modulated of radiating carry out conducting from above-mentioned light source; And
The end that is arranged on above-mentioned optical fiber is carried out the light-scattering body that radiates after the scattering to conducting in the light modulated of above-mentioned optical fiber, wherein, will be used for illumination from the scattered light that above-mentioned light-scattering body radiated and send above-mentioned information by this scattered light.
34., it is characterized in that according to the described illuminating light communication mode of claim 33:
Above-mentioned optical fiber and above-mentioned light-scattering body are plastic materials.
35., it is characterized in that according to the described illuminating light communication mode of claim 33:
Above-mentioned optical fiber and above-mentioned light-scattering body are by integrated.
36., it is characterized in that according to claim 33 any described illuminating light communication mode to the claim 35:
Above-mentioned light source radiation ultraviolet ray or blue light have been sneaked into fluorophor in above-mentioned light-scattering body.
37., it is characterized in that according to claim 33 any described illuminating light communication mode to the claim 35:
Above-mentioned light source is provided with a plurality of, sends the light of different colours separately.
38., it is characterized in that according to the described illuminating light communication mode of claim 37:
Above-mentioned light source control device carries out the control of light on and off or light quantity among above-mentioned a plurality of light sources at least one.
39. an illuminating light communication system is characterized in that having:
Send a plurality of lighting devices of illumination light; And
Above-mentioned lighting device is sent the optical communication apparatus of information by light in the space,
Wherein, above-mentioned lighting device is accepted from the light of above-mentioned optical communication apparatus obtaining information, and according to above-mentioned information illumination light is modulated.
40. an illuminating light communication system is characterized in that having:
Send a plurality of lighting devices of illumination light; And
One or more above-mentioned lighting devices are sent the optical communication apparatus of information by light in the space,
Wherein, one or more above-mentioned lighting devices are accepted light from above-mentioned optical communication apparatus to obtain information, other lighting devices are communicated to send above-mentioned information by light in the space, in each lighting device, illumination light is modulated and come transmission information by illumination light according to the above-mentioned information that receives from above-mentioned optical communication apparatus or other lighting devices.
41., it is characterized in that according to claim 39 or the described illuminating light communication system of claim 40:
Above-mentioned lighting device is an indoor illumination.
42., it is characterized in that according to the described illuminating light communication system of claim 40:
Above-mentioned lighting device is a street lamp.
43., it is characterized in that according to claim 39 any described illuminating light communication system to the claim 42:
Above-mentioned lighting device and above-mentioned optical communication apparatus or other lighting devices between the space in utilize light to carry out two-way communication.
44., it is characterized in that according to the described illuminating light communication system of claim 43:
Above-mentioned lighting device comprises from accepting the infrared rays receiver that illumination light is accepted with the light modulated according to information that terminal installation was sent that receives information, and utilizes light to carry out two-way communication between above-mentioned lighting device and above-mentioned window machine.
45., it is characterized in that according to claim 39 any described illuminating light communication system to the claim 44:
Above-mentioned lighting device is used as lighting source with semiconductor light-emitting elements.
46. a lighting device is characterized in that having:
Send one or more light-emitting apparatus of illumination light;
Be used for and be arranged at the light R-T unit that the space between the light-emitting device of other devices communicates by light; And
Based on controlling above-mentioned light-emitting apparatus by the received information of above-mentioned light R-T unit, and according to above-mentioned information to modulating from the illumination light of above-mentioned light-emitting apparatus so that above-mentioned information sends the control device of controlling like this.
47., it is characterized in that according to the described lighting device of claim 46:
Above-mentioned light R-T unit is configured in the different a plurality of positions of communication direction, and above-mentioned control device is controlled will from other above-mentioned light R-T units above-mentioned other devices be sent by the received information of certain above-mentioned light R-T unit by light in the space.
48., it is characterized in that according to claim 46 or the described lighting device of claim 47:
Above-mentioned light-emitting apparatus throws light on indoor.
49., it is characterized in that according to claim 46 or the described lighting device of claim 47:
Above-mentioned light-emitting apparatus on the way throws light on.
50., it is characterized in that according to claim 46 any described lighting device to the claim 49:
Above-mentioned light R-T unit and above-mentioned other the device between the space in utilize light to carry out two-way communication.
51. according to the described lighting device of claim 50, it is characterized in that, also comprise:
To infrared rays receiver from accepting to accept with the light modulated that terminal installation was sent that receives information according to information by the illumination light of above-mentioned light-emitting apparatus emission, and and above-mentioned window machine between in the space, carry out two-way communication by light.
52., it is characterized in that according to claim 46 any described lighting device to the claim 51:
Above-mentioned light-emitting apparatus comprises one or more semiconductor light-emitting elements as lighting source.
53. a lighting source is characterized in that having:
Send one or more illumination light-emitting elements of illumination light;
Be used for and be arranged at the light R-T unit that the space between the light-emitting device of other devices communicates by light; And
Based on controlling above-mentioned illumination light-emitting element by the received information of above-mentioned light R-T unit, and according to above-mentioned information to modulating from the illumination light of above-mentioned illumination light-emitting element so that above-mentioned information sends the control device of controlling like this.
54., it is characterized in that according to the described lighting source of claim 53:
Above-mentioned light R-T unit is configured in the different a plurality of positions of communication direction, and above-mentioned control device is controlled will from other above-mentioned light R-T units above-mentioned other devices be sent by the received information of certain above-mentioned light R-T unit by light in the space.
55., it is characterized in that according to claim 53 or the described lighting source of claim 54:
The transmit-receive position ground of the variable light of above-mentioned light R-T unit constitutes.
56., it is characterized in that according to claim 53 any described lighting source to the claim 55:
Above-mentioned light R-T unit be provided with disposing be used under the situation of a plurality of these lighting sources and other lighting sources of adjacency between the device that communicates by light of space, and be used for and be installed on the device that the space between other lighting sources of other lighting devices communicates by light.
57., it is characterized in that according to claim 53 any described lighting source to the claim 56:
Above-mentioned light R-T unit and above-mentioned other the device between the space in utilize light to carry out two-way communication.
58. according to the described lighting source of claim 57, it is characterized in that, also comprise:
To infrared rays receiver from accepting to accept with the light modulated that terminal installation was sent that receives information according to information by the illumination light of above-mentioned illumination light-emitting element emission, and and above-mentioned window machine between in the space, carry out two-way communication by light.
59., it is characterized in that according to claim 53 any described lighting source to the claim 58:
Above-mentioned illumination light-emitting element is one or more semiconductor light-emitting elements.
60. the electric equipment with the semiconductor light-emitting elements that shows usefulness is characterized in that having:
Control the light on and off of above-mentioned semiconductor light-emitting elements or the control device of luminous quantity according to information, and utilize the above-mentioned semiconductor light-emitting elements that shows usefulness to come transmission information.
61., it is characterized in that according to the described electric equipment of claim 60:
Above-mentioned semiconductor light-emitting elements is the led light source that is used for the state of display unit.
62., it is characterized in that according to the described electric equipment of claim 60:
Above-mentioned semiconductor light-emitting elements is the illuminating led light source of display unit.
63., it is characterized in that according to the described electric equipment of claim 60:
Above-mentioned semiconductor light-emitting elements is the led light source that is used to decorate.
64., it is characterized in that also having according to claim 60 any described electric equipment to the claim 63:
Acceptance is from the infrared rays receiver of the light of outside, by above-mentioned light is modulated the information of being sent here that receives.
65., it is characterized in that also having according to claim 60 any described electric equipment to the claim 63:
Utilized ultrared receiving system.
66. one kind is used for controller that electric equipment is indicated, it is characterized in that having:
Accept according to the light that sends from the transmission information via modulation of above-mentioned electric equipment to receive the infrared rays receiver of above-mentioned transmission information; And
Be used for above-mentioned electric equipment is sent the infrared communication device of indication information.
67. one kind is used for controller that electric equipment is indicated, it is characterized in that having:
Semiconductor light-emitting elements; And
Control the light on and off of above-mentioned semiconductor light-emitting elements or the modulating device of light quantity according to the indication information that above-mentioned electric equipment is sent.
68., it is characterized in that also having according to the described controller of claim 67:
Be used for the light from above-mentioned semiconductor light-emitting elements emission is carried out the optical system of optically focused.
69., it is characterized in that also having according to claim 67 or the described controller of claim 68:
Acceptance from above-mentioned electric equipment send and according to the light after sending the information via modulation to receive the infrared rays receiver of above-mentioned transmission information.
70., it is characterized in that also having according to claim 68 or the described controller of claim 69:
Be used for infrared rays receiver is carried out the optical system of optically focused, and can receive above-mentioned transmission information selectively from the light emitting source of outside.
71. one kind carries storage battery, does not have external power source and make the emergency light of the bright lamp of light source when unusual, it is characterized in that:
Use LED as above-mentioned light source.
72., it is characterized in that also having according to the described emergency light of claim 71:
Storing the storage device of the data of when unusual, transmitting; And
The data of storing based on above-mentioned storage device are controlled the electric power supplied with to above-mentioned LED with the luminous quantity of controlling above-mentioned LED or the optic modulating device of light on and off,
Wherein, transmit above-mentioned data by light.
73., it is characterized in that also having according to the described emergency light of claim 72:
To be overlapped under the state that drives by external power source in beyond when unusual that data that the said external power source voltage sent here are separated and the demodulating equipment of demodulation, make by the resulting storage of this demodulating equipment in above-mentioned storage device.
The emergency light that makes the bright lamp of light source 74. a utilization does not have external power source when unusual is characterized in that the emergency light wireless system for transmitting data of transfer of data to window machine,
Above-mentioned emergency light has: storage battery; LED as above-mentioned light source; Storing the storage device of the data of when unusual, transmitting; And control the electric power supplied with to above-mentioned LED based on the data that above-mentioned storage device is stored with the luminous quantity of controlling above-mentioned LED or the optic modulating device of light on and off,
Above-mentioned window machine has: accept from the light of the LED radiation of above-mentioned emergency light and be transformed into the infrared rays receiver of electric signal; And
To carrying out demodulation to obtain the demodulating equipment of above-mentioned data from the above-mentioned electric signal of this infrared rays receiver output.
75. a road lighting control system that is used on the way throwing light on is characterized in that, comprising:
The a plurality of lighting devices that are arranged on the road and on the way throw light on; And
With the illumination control apparatus of this lighting device with one or more controls that are made as illumination group and can throw light on one by one by this illumination group.
76., it is characterized in that according to the described road lighting control system of claim 75:
Above-mentioned illumination control apparatus is controlled the light on and off or the light quantity of illumination one by one by above-mentioned illumination group.
77., it is characterized in that according to claim 75 or the described road lighting control system of claim 76:
The color of the luminous light of above-mentioned lighting device may command, above-mentioned illumination control apparatus is controlled the color of luminous light one by one by above-mentioned illumination group.
78., it is characterized in that according to claim 75 any described road lighting control system to the claim 77:
Above-mentioned illumination control apparatus is reported unusual generation on the road by the control of the illumination of above-mentioned illumination group.
79., it is characterized in that also having according to the described road lighting control system of claim 78:
Be arranged on the road and by user's operation or automatically detect the abnormal detector of the unusual generation on the road, above-mentioned illumination control apparatus is being detected by above-mentioned abnormal detector when unusual, is used to report the illumination control of the above-mentioned illumination group of above-mentioned unusual generation.
80., it is characterized in that according to the described road lighting control system of claim 79:
Above-mentioned illumination control apparatus determines to be used to report the illumination group of control of the illumination of unusual generation according to the abnormality detection of utilizing above-mentioned abnormal detector.
81., it is characterized in that according to claim 75 any described road lighting control system to the claim 80:
Above-mentioned lighting device constitutes with semiconductor light-emitting elements and according to making above-mentioned semiconductor light-emitting elements send light modulated from the received information of above-mentioned illumination control apparatus, above-mentioned illumination control apparatus is delivered to information to be sent above-mentioned illumination group and by illumination light above-mentioned information sent.
82., it is characterized in that according to the described road lighting control system of claim 81:
Above-mentioned lighting device is provided with a plurality of above-mentioned semiconductor light-emitting elements on the substrate of bending.
83., it is characterized in that according to the described road lighting control system of claim 82:
Above-mentioned lighting device constitutes in the end of the substrate of bending directive property is narrowed down to throw light at a distance.
84. one kind is used for the road lighting control method of on the way throwing light on by a plurality of lighting devices, it is characterized in that:
With above-mentioned lighting device with one or more illumination group that are made as, and the control of throwing light on one by one by illumination group.
85., it is characterized in that according to the described road lighting control method of claim 84:
The control of the illumination of above-mentioned each illumination group is to make above-mentioned lighting device light on and off or the light quantity of above-mentioned lighting device is changed.
86., it is characterized in that according to claim 84 or the described road lighting control method of claim 85:
The color of the luminous light of above-mentioned lighting device may command, the control of the illumination of above-mentioned each illumination group is that the color of the luminous light of above-mentioned lighting device is controlled.
87., it is characterized in that according to claim 84 any described road lighting control method to the claim 86:
When unusual generation the on above-mentioned road, report unusual generation on the road by the control of carrying out above-mentioned illumination.
88., it is characterized in that according to the described road lighting control method of claim 87:
When on the way taking place unusually, by user's operation or automatically detect this unusual generation, and detect the control of the above-mentioned illumination of reporting that is used to take place unusually by this.
89., it is characterized in that according to the described road lighting control method of claim 88:
According to above-mentioned unusual detection, determine to be used to report the illumination group of control of the illumination of unusual generation.
90., it is characterized in that according to claim 84 any described road lighting control method to the claim 88:
Above-mentioned lighting device constitutes with semiconductor light-emitting elements, information to be sent is offered this lighting device make above-mentioned semiconductor light-emitting elements send light modulated, and by illumination light above-mentioned information is sent.
91., it is characterized in that according to the described road lighting control method of claim 90:
Above-mentioned lighting device is provided with a plurality of above-mentioned semiconductor light-emitting elements on the substrate of bending.
92., it is characterized in that according to the described road lighting control method of claim 91:
End at the substrate of the bending of above-mentioned lighting device narrows down directive property, throws light at a distance.
93. the moving body optical communication system to moving body transmission information is characterized in that,
The leakage optical fiber that carries out conducting according to the light signal after the information via modulation and from the surface light signal the is leaked mobile route along above-mentioned moving body is laid,
Wherein, above-mentioned moving body has: roughly above-mentioned vis-a-vis leakage optical fiber setting is also accepted from the infrared rays receiver of the light signal of above-mentioned leakage optical fiber leakage; And the light signal of being accepted by above-mentioned infrared rays receiver carried out demodulation to obtain the demodulating equipment of information, by means of light information is sent to above-mentioned moving body by above-mentioned leakage optical fiber.
94., it is characterized in that according to the described moving body optical communication system of claim 93:
Above-mentioned leakage optical fiber is laid in the track of above-mentioned moving body.
95. the moving body optical communication system from moving body transmission information is characterized in that,
Above-mentioned moving body has: the modulating device that information is modulated; The light-emitting device that will the information after ovennodulation radiates as light signal; And the leakage optical fiber that the light signal from the radiation of above-mentioned light-emitting device is carried out conducting and from the surface light signal leaked,
Wherein, the roughly above-mentioned leakage optical fiber setting of above-mentioned moving body vis-a-vis, accept the light signal that leaks from above-mentioned leakage optical fiber and the infrared rays receiver that is transformed into electric signal is a plurality of with the arranged spaced of regulation along the mobile route of above-mentioned moving body, by means of light information is sent from above-mentioned moving body by the above-mentioned leakage optical fiber that is arranged at above-mentioned moving body.
96., it is characterized in that according to the described moving body optical communication system of claim 95:
Above-mentioned leakage optical fiber is arranged in the floor of above-mentioned moving body, and above-mentioned infrared rays receiver is arranged in the track of above-mentioned moving body.
97. the moving body optical communication method to moving body transmission information is characterized in that:
To lay by the mobile route along above-mentioned moving body from the leakage optical fiber of surface leakage light signal, acceptance is provided with from the roughly above-mentioned vis-a-vis leakage optical fiber of infrared rays receiver of the light signal of above-mentioned leakage optical fiber leakage, and be provided with the light signal of accepting with above-mentioned infrared rays receiver is carried out demodulation to obtain the demodulating equipment of information, light signal after making above-mentioned leakage optical fiber conducting according to the information via modulation also makes the surface leakage of light signal from above-mentioned leakage optical fiber, accept behind the light signal of the surface leakage of above-mentioned leakage optical fiber, to carry out demodulation by the above-mentioned infrared rays receiver that is arranged at above-mentioned moving body and obtain information, by means of light information is sent to above-mentioned moving body by above-mentioned leakage optical fiber thus with above-mentioned demodulating equipment.
98., it is characterized in that according to the described moving body optical communication method of claim 97:
Above-mentioned leakage optical fiber is laid in the track of above-mentioned moving body.
99. the moving body optical communication method from moving body transmission information is characterized in that:
The modulating device that information is modulated is set on above-mentioned moving body; The light-emitting device that will the information after ovennodulation radiates as light signal; And the leakage optical fiber that the light signal from the radiation of above-mentioned light-emitting device is carried out conducting and from the surface light signal leaked, wherein, light signal that leaks from the above-mentioned leakage optical fiber of above-mentioned moving body and the roughly above-mentioned vis-a-vis leakage optical fiber of infrared rays receiver that is transformed into electric signal will be accepted, mobile route along above-mentioned moving body is a plurality of with the arranged spaced of regulation, in above-mentioned moving body, information is modulated with above-mentioned modulating device and be emitted to above-mentioned leakage optical fiber as light signal with above-mentioned light-emitting device, accept from the light signal of the surface leakage of above-mentioned leakage optical fiber and be transformed into electric signal by above-mentioned infrared rays receiver, carry out transmission thus from the information of above-mentioned moving body.
100., it is characterized in that according to the described moving body optical communication method of claim 99:
Above-mentioned leakage optical fiber is arranged in the floor of above-mentioned moving body, and above-mentioned infrared rays receiver is arranged in the track of above-mentioned moving body.
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP309557/2002 | 2002-10-24 | ||
| JP2002309557A JP3827082B2 (en) | 2002-10-24 | 2002-10-24 | Broadcast system, light bulb, lighting device |
| JP352075/2002 | 2002-12-04 | ||
| JP4560/2003 | 2003-01-10 | ||
| JP37746/2003 | 2003-02-17 | ||
| JP70673/2003 | 2003-03-14 | ||
| JP82278/2003 | 2003-03-25 | ||
| JP84819/2003 | 2003-03-26 | ||
| JP161859/2003 | 2003-06-06 | ||
| JP177816/2003 | 2003-06-23 | ||
| JP323052/2003 | 2003-09-16 |
Related Child Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810130498 Division CN101350669A (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
| CN 200810130495 Division CN101350666B (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
| CN200910179120A Division CN101714898A (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
| CN 200810130497 Division CN101350668A (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
| CN 200810130496 Division CN101350667A (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1723639A true CN1723639A (en) | 2006-01-18 |
| CN100563130C CN100563130C (en) | 2009-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810130496 Pending CN101350667A (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
| CN 200810130497 Pending CN101350668A (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
| CN 200810130498 Pending CN101350669A (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
| CN200380104093.2A Expired - Fee Related CN100563130C (en) | 2002-10-24 | 2003-10-23 | Illuminating light communication device |
| CN 200810130495 Expired - Fee Related CN101350666B (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810130496 Pending CN101350667A (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
| CN 200810130497 Pending CN101350668A (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
| CN 200810130498 Pending CN101350669A (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200810130495 Expired - Fee Related CN101350666B (en) | 2002-10-24 | 2003-10-23 | Illumination light communication device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3827082B2 (en) |
| CN (5) | CN101350667A (en) |
| TW (1) | TW200410512A (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101350666A (en) | 2009-01-21 |
| JP2004147063A (en) | 2004-05-20 |
| CN101350666B (en) | 2012-07-04 |
| CN101350668A (en) | 2009-01-21 |
| CN101350669A (en) | 2009-01-21 |
| TW200410512A (en) | 2004-06-16 |
| CN100563130C (en) | 2009-11-25 |
| TWI309927B (en) | 2009-05-11 |
| CN101350667A (en) | 2009-01-21 |
| JP3827082B2 (en) | 2006-09-27 |
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