CN105634604A - Long-distance photon LIFI energy-saving communication system - Google Patents
Long-distance photon LIFI energy-saving communication system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/70—Photonic quantum communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/45—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
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Abstract
The invention discloses a long-distance photon LIFI energy-saving communication system, which comprises a signal modulation control device, an LED searchlight having a certain transmitting power and beam divergence angle, a receiving antenna, an optical detector, a signal processing circuit, a display terminal, a central processor, a field-programmable gate array circuit and a power circuit. The power circuit is connected with the central processor and the field-programmable gate array circuit; the power circuit is internally provided with a solar cell panel, a voltage stabilizing circuit, a power source controller and a DC power supply circuit; the signal processing circuit is used for processing video electrical signals and determining the shape, size and average reception optical power of received light spots; an atmospheric channel is formed between the searchlight and the receiving antenna; and light output by the light source is transmitted through the atmospheric channel.
Description
Technical field
The present invention relates to wireless communication technology field, especially a kind of long distance energy-conservation communication system of photon LIFI.
Background technology
Visible light communication technology, be the high speed light and shade flash signal being invisible to the naked eye utilizing luminescent lamp or photodiode etc. to send to transmit information, the wire device of high-speed Internet is connected on means of illumination, insertion attaching plug can use. The system utilizing this kind of technology to make can cover the scope that indoor light reaches, and computer does not need electric wire to connect, and thus has DEVELOPMENT PROSPECT widely. Visible light communication technology can be divided into indoor visible light communication (IndoorVisibleLightCommunication) and outdoor visible light communication (OutdoorVisibleLightCommunication). Indoor visible light communication is generally under the indoor conditions such as office, public place, and the emphasis studied is in high speed short range transmission, and transmission range is near, is easy to location, launches, receives, and current Japanology mechanism has completed indoor 1Gbps speed rates; Outdoor visible light communication is generally used in intelligent transportation system, is used for transmitting road condition information and vehicle information distinguishes. These years, the Application Areas of road traffic intelligent communication system is constantly expanded and extend, and road traffic signal lamp has occurred, road traffic signal lamp that the LED of some motor vehicles forms and motor vehicle and motor vehicle headlamp be to this two type systematic of vehicle taillight.
In the middle of outdoor visible light communication system, visible light communication is that channel transmits taking air, so its transport property can be subject to the impact of various different weather condition, the atmospheric attenuation effect wherein caused by rain, snow, haze etc. is the key factor affecting visible light communication performance. Atmospheric attenuation mainly shows as the loss minimizing of luminous energy in transmitting procedure, causes the reason of atmospheric attenuation to have a lot, wherein affects absorption and the scattering effect of the bigger molecule comprising in air and aerosol. The density of the air that weather condition, optical source wavelength, transmission range, light pass through and atmospheric layer thickness affect the degree of atmospheric attenuation.
Summary of the invention
The goal of the invention of the present invention is, overcomes the deficiency of art methods, it provides a kind of baseband signal be modulated on visible ray that LED sends, is that channel transmits taking air, and receiving end uses CCD to carry out the remote visible light communication system received.
For achieving the above object, it is proposed that following technical scheme:
A kind of long distance energy-conservation communication system of photon LIFI, comprises the LED searchlight of signal madulation operating device, certain transmitted power and beam divergence angle, receiving antenna (camera lens), photo-detector, signal treatment circuit and oscilloscope, central processing unit, field programmable gate array, power source circuit; Described power source circuit connects central processing unit and field programmable gate array respectively; Solar panel, voltage stabilizing circuit, power-supply controller of electric and DC power-supply circuit, other display terminals it are provided with in described power source circuit; Described signal madulation equipment is responsible for modulating the original electrical signal of generation; Described LED searchlight is white light LEDs, it is also possible to be the LED of other monochromes; Described photo-detector adopts visible light wave range to respond good CCD electrooptical device; Described receiving antenna is the optical lens of variable multiple; Described signal treatment circuit and photo-detector adapt, such as CCD photo-detector, described signal treatment circuit is used for the process of video electrical signal, and determines the shape of light spot received, size and the average received optical power (change of received signal strength indicator RSSI; Being atmospheric channel between described searchlight and described receiving antenna, the light that light source sends is transmitted by atmospheric channel; Owing to RSSI level and received optical power (signal power plus noise power) exist certain mapping relation, by oscilloscope to the collection of RSSI level and display, it is possible to obtain received optical power and (comprise slow change and change soon) situation over time. Described CCD sensor devices has parameter gray-scale value, is used for representing the size of light intensity, by camera software kit, it is possible to by data acquisition of terminal such as computers, obtains the change of light intensity.
To better implement the present invention, it is possible to meet and make sun power carry out generating electricity or still meet when night not in illuminance whole system to be powered;
In use, unnecessary electric energy will be stored in secondary battery, and occur that solar illuminating is not or rainy weather or during night, secondary battery will carry out releasing electricity, and it is delivered in DC power-supply circuit by the output circuit of power-supply controller of electric, central processing unit and field programmable gate array are powered, reaches 24 hours and round-the-clock make whole system works.
Described remote visible light communication system equipment mainly comprises launches end and receiving end; Launch end and can use the modulation systems such as OOK, PPM, the optical signal modulated is launched by light source with the rule of high speed, light and shade change, adopt high-power low beam divergence angle array LED as light source, owing to modulation rate is in 100 bit magnitudes, micro-chip can be adopted to coordinate C++ software programming to carry out launching the design of hardware and software of end, it is achieved the transmission of character string; Receiving end, adopts CCD as photo-detector, and hardware device uses high frame rate (more than 100fps), highly sensitive, high-responsivity CCD camera. Camera is taken with frame frequency identical with light source, and CCD camera is carried out the acquisition and processing of data by design software, the rule of modulation signal is presented, and obtains corresponding gray-scale value, thus completes the transmittance process of information, it is achieved the reception of character string.
Described modulation system is OOK modulation system; OOK bandwidth demand is low, and hardware implementing is the simplest, only needs the method by direct-detection when decoding, when determining, by judging the presence or absence of light, the information received 0 or 1. Wherein, " bright " state represents with " 1 ", and " going out " state represents with " 0 ",
Described field programmable gate array, inside comprises configurable logic blocks CLB, input/output module IOB and inner line three parts; FPGA utilizes small-sized table (16 �� 1RAM) of searching to realize combinational logic, each searches the input terminus of list catenation to a d type flip flop, triggering device drives other logical circuits again or drives I/O, thus constitute and not only can realize combinational logic function but also the basic logic unit module of sequential logic function can be realized, between these modules, utilize metal connecting line interconnection or be connected to I/O module; The logic of FPGA loads programming data by internally static storage cell and realizes, store value in a memory cell and determine the connecting mode between the logic function of logical block and each module or between module and I/O, and finally determining the function achieved by FPGA, FPGA allows unlimited programming.
Described transmitting module adopts white light LEDs, in order to increase transmitted power, it may also be useful to LED array, is specially the LED array of 3*4, and each LED power can reach 4W, and beam divergence angle is 5.3 ��.
Described receiving end adopts CCD camera to receive, and for 100fps, the camera spacing such as within 1 second takes 100 images, optical information received lower after, be stored in the middle of image.
Described light receiver aerial is one group of optical lens, cooperatively interacts with CCD camera, configuration motorized zoom lens and encoder, it is possible to realizes computer control and automatically becomes burnt.
Described remote visible light communication system also comprises optical signal data acquisition processing module, completes the acquisition process of the flashlight sent by LED for the program by writing. This program is that framework is write taking MFC, completes the treatment and analysis to the picture information sended over from camera. When the Frequency Synchronization of light source and camera, camera can accurately capture the information that light source sends.
Described remote visible light communication system also comprises visible light communication data transmission module, and synchronous during for completing transfer, coordinates with Adaptive Transmission module, completes rate-compatible adaptive information and transmits. Comprise transfer set-up procedure, data rate identification process, data synchronization process, data transmission procedure. Being followed successively by transfer by order to set up, the time length is 1T, protection interval 2T; Rate identification code sends time 3T; Protection interval 4T; The data syn-chronization time; Finally carry out data transmission.
Described remote visible light communication system specifically comprises:
Modulator, launching end for visible light communication needs baseband signal is modulated to light carrier, and the effect of modulator is exactly according to different modulation systems, such as OOK modulation, PPM modulation etc., information to be first modulated into electrical signal. Modulator hardware can adopt 51 conventional micro-chip series, in order to reach higher speed and the requirement of precision, it is also possible to select FPGA etc.
LED drives, for electrical signal is converted into optical signal. The electrical signal being adjusted to, for completing the driving function to LED/light source, is converted into optical signal simultaneously and is loaded on LED/light source by LED drive module. Such as 51 micro-chips, its triggering mode is that TTL triggers, and completes to be driven by LED/light source.
LED is the launching device of visible light communication system, in order to meet the demand of communication system, should select that power is big, beam divergence angle is little, white LED light source as far as possible. In addition, select array format LED/light source can increase luminous power, and beam divergence angle is generally reached 4 degree.
LED controller, is used for controlling the equipment of light source and camera, completes subsidiary function.
Atmospheric channel, the flashlight being adjusted to is launched by light source, is transmitted by atmospheric channel, will be subject to the impact of atmospheric channel in transmitting procedure.
Camera lens, namely camera lens is receiving antenna, mainly completes the seizure receiving function of optical signal, and camera lens can carry out becoming burnt, change field of view of receiver angle, it is possible to zoom in or out target. For the ease of cooperatively interacting with CCD camera, it is configured with motorized zoom lens and encoder, it is possible to realize conputer controlled and automatically become burnt.
CCD camera, CCD is sensitive component, and optical signal is mainly converted into electrical signal reimaging.
CCD camera needs the speed that can mate light source, and CCD camera can complete high frame rate collection. CCD camera is connected on computer by gigabit Ethernet, and is completed the acquisition and processing of view data by program.
Imaging processing process, the modulated optical signal for receiving carries out receiving imaging, analyzes its gray-level light intensity, demodulates raw information, complete receives information.
Display terminal: at oscilloscope, computer or with document form, result can be shown, store.
This beneficial effect of the invention:
The remote visible light communication system of the present invention, OOK modulation system is have employed at transmitting end, OOK bandwidth demand is low, to better implement the present invention, it is possible to meets and makes sun power carry out generating electricity or still meet when night not in illuminance whole system to be powered;
In use, unnecessary electric energy will be stored in secondary battery, and occur that solar illuminating is not or rainy weather or during night, secondary battery will carry out releasing electricity, and it is delivered in DC power-supply circuit by the output circuit of power-supply controller of electric, central processing unit and field programmable gate array are powered, reaches 24 hours and round-the-clock make whole system works.
And hardware implementing is the simplest, when decoding, only need the method by direct-detection, when determining, by judging the presence or absence of light, the information received 0 or 1; Make to launch end cost reasonable; At receiving end, adopting CCD as photo-detector, hardware device uses high frame rate (more than 100fps), highly sensitive, high-responsivity CCD camera; Camera is taken with frame frequency identical with light source, and CCD camera is carried out the acquisition and processing of data by design software, the rule of modulation signal is presented, and obtains corresponding gray-scale value, thus completes the transmittance process of information, it is achieved the reception of character string. Selecting CCD as photo-detector, its sensitivity and responsive are much higher than traditional PIN photodiode. It in contrast to conventional photodiode, adopt CCD camera that the position of light source can be made to show clearly in the picture, like this, as long as the position of signal can be judged, multiple light source can be used in the future, within the ability to accept of receiving end, increase exponentially transfer rate. And CCD can also simultaneously in the middle of APT communication system as photo-detector.
Accompanying drawing explanation
Fig. 1 is the remote visible light communication system appliance arrangement schematic diagram of the present invention;
Fig. 2 is the remote visible light communication system function module principle block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a kind of long distance energy-conservation communication system of photon LIFI of the present invention is further described in detail:
As shown in Figure 1, a kind of long distance energy-conservation communication system of photon LIFI, comprises the LED searchlight of signal madulation operating device, certain transmitted power and beam divergence angle, receiving antenna (camera lens), photo-detector, signal treatment circuit, central processing unit, field programmable gate array, power source circuit; Described power source circuit connects central processing unit and field programmable gate array respectively; Solar panel, voltage stabilizing circuit, power-supply controller of electric and DC power-supply circuit, oscilloscope or other display terminals it is provided with in described power source circuit; Described signal madulation equipment is responsible for modulating the original electrical signal of generation; Described LED searchlight is white light LEDs, it is also possible to be the LED of other monochromes; Described photo-detector adopts visible light wave range to respond good CCD electrooptical device; Described receiving antenna is the optical lens of variable multiple; Described signal treatment circuit and photo-detector adapt, such as CCD photo-detector, described signal treatment circuit is used for the process of video electrical signal, and determines the shape of light spot received, size and the average received optical power (change of received signal strength indicator RSSI; Being atmospheric channel between described searchlight and described receiving antenna, the light that light source sends is transmitted by atmospheric channel; Owing to RSSI level and received optical power (signal power plus noise power) exist certain mapping relation, by oscilloscope to the collection of RSSI level and display, it is possible to obtain received optical power and (comprise slow change and change soon) situation over time. Described CCD sensor devices has parameter gray-scale value, is used for representing the size of light intensity, by camera software kit, it is possible to by data acquisition of terminal such as computers, obtains the change of light intensity.
Preferably, described remote visible light communication system equipment mainly comprises transmitting end and receiving end; Launch end and can use the modulation systems such as OOK, PPM, the optical signal modulated is launched by light source with the rule of high speed, light and shade change, adopt high-power low beam divergence angle array LED as light source, owing to modulation rate is in 100 bit magnitudes, micro-chip can be adopted to coordinate C++ software programming to carry out launching the design of hardware and software of end, it is achieved the transmission of character string; Receiving end, adopts CCD as photo-detector, and hardware device uses high frame rate (more than 100fps), highly sensitive, high-responsivity CCD camera. Camera is taken with frame frequency identical with light source, and CCD camera is carried out the acquisition and processing of data by design software, the rule of modulation signal is presented, and obtains corresponding gray-scale value, thus completes the transmittance process of information, it is achieved the reception of character string.
Preferably, described modulation system is OOK modulation system; OOK bandwidth demand is low, and hardware implementing is the simplest, only needs the method by direct-detection when decoding, when determining, by judging the presence or absence of light, the information received 0 or 1. Wherein, " bright " state represents with " 1 ", and " going out " state represents with " 0 ",
Described field programmable gate array, inside comprises configurable logic blocks CLB, input/output module IOB and inner line three parts; FPGA utilizes small-sized table (16 �� 1RAM) of searching to realize combinational logic, each searches the input terminus of list catenation to a d type flip flop, triggering device drives other logical circuits again or drives I/O, thus constitute and not only can realize combinational logic function but also the basic logic unit module of sequential logic function can be realized, between these modules, utilize metal connecting line interconnection or be connected to I/O module; The logic of FPGA loads programming data by internally static storage cell and realizes, store value in a memory cell and determine the connecting mode between the logic function of logical block and each module or between module and I/O, and finally determining the function achieved by FPGA, FPGA allows unlimited programming.
To better implement the present invention, it is possible to meet and make sun power carry out generating electricity or still meet when night not in illuminance whole system to be powered;
In use, unnecessary electric energy will be stored in secondary battery, and occur that solar illuminating is not or rainy weather or during night, secondary battery will carry out releasing electricity, and it is delivered in DC power-supply circuit by the output circuit of power-supply controller of electric, central processing unit and field programmable gate array are powered, reaches 24 hours and round-the-clock make whole system works.
Preferably, described transmitting module adopts white light LEDs, in order to increase transmitted power, it may also be useful to LED array, is specially the LED array of 3*4, and each LED power can reach 4W, and beam divergence angle is 5.3 ��.
Preferably, described receiving end adopts CCD camera to receive, and for 100fps, the camera spacing such as within 1 second takes 100 images, optical information received lower after, be stored in the middle of image.
Preferably, described light receiver aerial is one group of optical lens, cooperatively interacts with CCD camera, configuration motorized zoom lens and encoder, it is possible to realizes computer control and automatically becomes burnt.
Preferably, described remote visible light communication system also comprises optical signal data acquisition processing module, completes the acquisition process of the flashlight sent by LED for the program by writing. This program is that framework is write taking MFC, completes the treatment and analysis to the picture information sended over from camera. When the Frequency Synchronization of light source and camera, camera can accurately capture the information that light source sends.
Preferably, described remote visible light communication system also comprises visible light communication data transmission module, and synchronous during for completing transfer, coordinates with Adaptive Transmission module, completes rate-compatible adaptive information and transmits. Comprise transfer set-up procedure, data rate identification process, data synchronization process, data transmission procedure. Being followed successively by transfer by order to set up, the time length is 1T, protection interval 2T; Rate identification code sends time 3T; Protection interval 4T; The data syn-chronization time; Finally carry out data transmission.
As shown in Figure 2, described remote visible light communication system specifically comprises:
Modulator, launching end for visible light communication needs baseband signal is modulated to light carrier, and the effect of modulator is exactly according to different modulation systems, such as OOK modulation, PPM modulation etc., information to be first modulated into electrical signal. Modulator hardware can adopt 51 conventional micro-chip series, in order to reach higher speed and the requirement of precision, it is also possible to select FPGA etc.
LED drives, for electrical signal is converted into optical signal. The electrical signal being adjusted to, for completing the driving function to LED/light source, is converted into optical signal simultaneously and is loaded on LED/light source by LED drive module. Such as 51 micro-chips, its triggering mode is that TTL triggers, and completes to be driven by LED/light source.
LED is the launching device of visible light communication system, in order to meet the demand of communication system, should select that power is big, beam divergence angle is little, white LED light source as far as possible. In addition, select array format LED/light source can increase luminous power, and beam divergence angle is generally reached 4 degree.
LED controller, is used for controlling the equipment of light source and camera, completes subsidiary function.
Atmospheric channel, the flashlight being adjusted to is launched by light source, is transmitted by atmospheric channel, will be subject to the impact of atmospheric channel in transmitting procedure.
Camera lens, namely camera lens is receiving antenna, mainly completes the seizure receiving function of optical signal, and camera lens can carry out becoming burnt, change field of view of receiver angle, it is possible to zoom in or out target. For the ease of cooperatively interacting with CCD camera, it is configured with motorized zoom lens and encoder, it is possible to realize conputer controlled and automatically become burnt.
CCD camera, CCD is sensitive component, and optical signal is mainly converted into electrical signal reimaging.
CCD camera needs the speed that can mate light source, and CCD camera can complete high frame rate collection. CCD camera is connected on computer by gigabit Ethernet, and is completed the acquisition and processing of view data by program. Gather after storing, it is necessary to image is carried out information extraction process. For 100fps, resolving power often adopts 480*320, and resolving power is the criterion of the accurate degree of image. If resolving power is 480*320, then have 153600 pixels, and a pictures is made up of these 153600 points exactly. Pixel is the fundamental unit on CCD, forms piece image by multiple pixel, and the size of pixel is weighed by gray scale usually. Under the prerequisite adopting black and white camera, pixel value has 8,12 etc. Here pixel selects 8, then the scope of each pixel value is 0��255, and more close to 0, this point is more close to black; More close to 255, this point is more close to white. In black white image, this concept of pixel value is exactly gray-scale value in fact, and gray-scale value refers to the depth of shade of image mid point, and under 8 conditions, the size of value, from 0 to 255, is up to 255, and minimum is 0, respectively corresponding white and black. Utilize this characteristic, after camera alignment light source, if light source is " bright " state, the gray-scale value of image just corresponding height after camera shooting; If " going out " state, gray-scale value is just corresponding low. Like this, thresholding is set by respective algorithms, then it is judged as " 1 " higher than this thresholding, be then judged as " 0 " lower than this thresholding, can find by experiment, differ greatly in the difference of " bright " state Yu the gray-scale value of " going out " state, judge than being easier to.
Imaging processing process, the modulated optical signal for receiving carries out receiving imaging, analyzes its gray-level light intensity, demodulates raw information, complete receives information.
Display terminal: at oscilloscope, computer or with document form, result can be shown, store.
Claims (7)
1. the one kind long distance energy-conservation communication system of photon LIFI, it is characterized in that, comprise the LED searchlight of signal madulation operating device, certain transmitted power and beam divergence angle, receiving antenna, photo-detector, signal treatment circuit, display terminal, central processing unit, field programmable gate array, power source circuit; Described power source circuit connects central processing unit and field programmable gate array respectively; Solar panel, voltage stabilizing circuit, power-supply controller of electric and DC power-supply circuit it is provided with in described power source circuit; Described signal madulation equipment is responsible for modulating the original electrical signal of generation; Described LED searchlight is monochromatic LED; Described photo-detector is that visible light wave range responds good CCD electrooptical device; Described receiving antenna is the optical lens of variable multiple; Described signal treatment circuit and photo-detector adapt, and for the process of video electrical signal, and determine the shape of light spot received, size and average received optical power; Being atmospheric channel between described searchlight and described receiving antenna, the light that light source sends is transmitted by atmospheric channel.
2. the one according to claim 1 long distance energy-conservation communication system of photon LIFI, it is characterised in that, described remote visible light communication system equipment is divided into launches end and receiving end; Described transmitting end is OOK or PPM modulation mode, and the optical signal modulated is launched by light source with the rule of high speed, light and shade change, and described light source is high-power low beam divergence angle array LED; Adopt and launch end described in micro-chip control, it is achieved the transmission of character string; Described receiving end, adopts CCD as photo-detector, and camera is taken with frame frequency identical with light source, and CCD camera carries out the acquisition and processing of data, the rule of modulation signal is presented, obtain corresponding gray-scale value, thus complete the transmittance process of information, it is achieved the reception of character string.
3. the one according to claim 1 long distance energy-conservation communication system of photon LIFI, it is characterised in that, described field programmable gate array, inside comprises configurable logic blocks CLB, input/output module IOB and inner line three parts; FPGA utilizes small-sized table (16 �� 1RAM) of searching to realize combinational logic, each searches the input terminus of list catenation to a d type flip flop, triggering device drives other logical circuits again or drives I/O, thus constitute and not only can realize combinational logic function but also the basic logic unit module of sequential logic function can be realized, between these modules, utilize metal connecting line interconnection or be connected to I/O module; The logic of FPGA loads programming data by internally static storage cell and realizes, store value in a memory cell and determine the connecting mode between the logic function of logical block and each module or between module and I/O, and finally determining the function achieved by FPGA, FPGA allows unlimited programming.
4. the one according to claim 1 long distance energy-conservation communication system of photon LIFI, it is characterized in that, described light receiver aerial is one group of optical lens, cooperatively interacts with CCD camera, configuration motorized zoom lens and encoder, it is possible to realize computer control and automatically become burnt.
5. the one according to claim 2 long distance energy-conservation communication system of photon LIFI, it is characterized in that, described remote visible light communication system also comprises optical signal data acquisition processing module, completes the acquisition process of the flashlight sent by LED for the program by writing; Described program is that framework is write taking MFC, completes the treatment and analysis to the picture information sended over from camera; When the Frequency Synchronization of light source and camera, camera can accurately capture the information that light source sends.
6. the one according to claim 2 long distance energy-conservation communication system of photon LIFI, it is characterized in that, described remote visible light communication system also comprises visible light communication data transmission module, synchronous during for completing transfer, coordinate with Adaptive Transmission module, complete the transmission of rate-compatible adaptive information.
7. a kind of long distance energy-conservation communication system of photon LIFI according to the arbitrary item of claim 1-6, it is characterised in that, described remote visible light communication system specifically comprises:
Modulator, launching end for visible light communication needs baseband signal is modulated to light carrier, and information is first modulated into electrical signal; Described modulator is 51 micro-chip series or FPGA;
LED drives, for electrical signal is converted into optical signal; The electrical signal being adjusted to, for completing the driving function to LED/light source, is converted into optical signal simultaneously and is loaded on LED/light source by described LED drive module; Described LED drive module is 51 micro-chips, and its triggering mode is that TTL triggers, and completes to be driven by LED/light source;
LED is the launching device of visible light communication system, and described LED/light source is that power is big, beam divergence angle is little, the LED array of white light;
LED controller, is used for controlling the equipment of light source and camera, completes subsidiary function;
Atmospheric channel, the flashlight being adjusted to is launched by light source, is transmitted by atmospheric channel, will be subject to the impact of atmospheric channel in transmitting procedure;
Camera lens, namely camera lens is receiving antenna, mainly completes the seizure receiving function of optical signal, and camera lens can carry out becoming burnt, change field of view of receiver angle, it is possible to zoom in or out target; For the ease of cooperatively interacting with CCD camera, it is configured with motorized zoom lens and encoder, it is possible to realize conputer controlled and automatically become burnt;
CCD camera, CCD is sensitive component, and optical signal is mainly converted into electrical signal reimaging;
Described CCD camera is connected on computer by gigabit Ethernet, and is completed the acquisition and processing of view data by program;
Imaging processing process, the modulated optical signal for receiving carries out receiving imaging, analyzes its gray-level light intensity, demodulates raw information, complete receives information;
Display terminal, at oscilloscope, computer or result shown with document form, store.
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| CN110808786A (en) * | 2019-11-20 | 2020-02-18 | 中国船舶重工集团公司第七0五研究所 | High-power underwater wireless optical communication transmitter |
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-
2016
- 2016-03-21 CN CN201610158953.XA patent/CN105634604A/en not_active Withdrawn
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| CN106056709A (en) * | 2016-06-01 | 2016-10-26 | 苏州杰姆斯特机械有限公司 | Entry-exit remote light control system |
| CN106054699A (en) * | 2016-06-02 | 2016-10-26 | 苏州杰姆斯特机械有限公司 | Microprocessor-based remote CCD automatic control system |
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| CN106100731A (en) * | 2016-06-03 | 2016-11-09 | 苏州杰姆斯特机械有限公司 | A kind of insert row control system of long-range LBS location navigation |
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| CN106168401A (en) * | 2016-06-03 | 2016-11-30 | 苏州杰姆斯特机械有限公司 | A kind of photovoltaic CCD light-operated intelligent humidifier |
| CN106059664A (en) * | 2016-06-03 | 2016-10-26 | 苏州杰姆斯特机械有限公司 | Remote LBS positioned and navigated automatic curtain control system |
| CN105869384A (en) * | 2016-06-06 | 2016-08-17 | 朱明德 | Photovoltaic CCD light-control intelligent home system |
| CN106094537A (en) * | 2016-06-06 | 2016-11-09 | 朱明德 | A kind of indoor wireless CCD controls intelligent controlling device |
| CN106094536A (en) * | 2016-06-06 | 2016-11-09 | 朱明德 | A kind of underground special CCD optic communication intelligent mobile interconnected control systems |
| CN105892373A (en) * | 2016-06-06 | 2016-08-24 | 袁福德 | Remote LBS positioning and navigation internet of things control system |
| CN105929743A (en) * | 2016-06-06 | 2016-09-07 | 袁福德 | LIFI remote CCD robot control-based Internet-of-Things system |
| CN105929742A (en) * | 2016-06-06 | 2016-09-07 | 袁福德 | Microprocessor artificial intelligent control-based system device |
| CN106092087A (en) * | 2016-06-13 | 2016-11-09 | 苏州迈奇杰智能技术有限公司 | The household navigator that the light-operated mobile terminal of a kind of photovoltaic controls |
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| CN106054706A (en) * | 2016-06-14 | 2016-10-26 | 苏州迈奇杰智能技术有限公司 | Robot automatic control system based on microprocessor visible light communication technology |
| CN106450947A (en) * | 2016-06-17 | 2017-02-22 | 苏州迈奇杰智能技术有限公司 | CCD light communication underground special intelligent socket |
| CN106452579A (en) * | 2016-06-17 | 2017-02-22 | 苏州迈奇杰智能技术有限公司 | Basement special-purpose CCD optical communication air purification device |
| CN106524520A (en) * | 2016-06-17 | 2017-03-22 | 苏州迈奇杰智能技术有限公司 | Special basement CCD photo-communication intelligent water heater |
| CN106160858A (en) * | 2016-06-20 | 2016-11-23 | 苏州迈奇杰智能技术有限公司 | A kind of photovoltaic energy-conservation CCD light-operated intelligent dirt removing device |
| CN106168402A (en) * | 2016-06-20 | 2016-11-30 | 苏州迈奇杰智能技术有限公司 | A kind of photovoltaic CCD light-operated intelligent air-conditioning heating system |
| CN106073439A (en) * | 2016-06-20 | 2016-11-09 | 苏州迈奇杰智能技术有限公司 | A kind of CCD Special Automatic curtain of optic communication partly-exposed basement |
| CN106406158A (en) * | 2016-06-20 | 2017-02-15 | 苏州迈奇杰智能技术有限公司 | Artificial intelligence control automatic curtain based on microprocessor |
| CN106388538A (en) * | 2016-06-20 | 2017-02-15 | 苏州迈奇杰智能技术有限公司 | Automatic curtain based on LIFI remote control |
| CN105929749A (en) * | 2016-06-21 | 2016-09-07 | 苏州迈奇杰智能技术有限公司 | Microprocessor-based artificial intelligence control intelligent water dispenser |
| CN105929750A (en) * | 2016-06-21 | 2016-09-07 | 苏州迈奇杰智能技术有限公司 | Microprocessor-based artificial intelligence control intelligent socket |
| CN106054835A (en) * | 2016-06-21 | 2016-10-26 | 苏州迈奇杰智能技术有限公司 | Intelligent haze preventing device based on artificial intelligent control of microprocessor |
| CN106099553A (en) * | 2016-06-21 | 2016-11-09 | 苏州迈奇杰智能技术有限公司 | One remotely controls smart jack based on LIFI |
| CN106094704A (en) * | 2016-06-21 | 2016-11-09 | 苏州迈奇杰智能技术有限公司 | A kind of control Intelligent electric-heating cup based on LIFI long-range CCD robot and may move system |
| CN106078740A (en) * | 2016-06-21 | 2016-11-09 | 苏州迈奇杰智能技术有限公司 | A kind of control to go haze to may move system based on LIFI long-range CCD robot |
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| CN106211428A (en) * | 2016-07-13 | 2016-12-07 | 苏州天擎电子通讯有限公司 | A kind of searchlighting system of multi-internet integration telecommunication |
| CN106195887A (en) * | 2016-07-13 | 2016-12-07 | 苏州天擎电子通讯有限公司 | A kind of photovoltaic energy-conservation intelligence absorption haze street lamp |
| CN105978627A (en) * | 2016-07-13 | 2016-09-28 | 苏州天擎电子通讯有限公司 | LBS located and navigated remote illumination and communication device |
| CN106179747A (en) * | 2016-07-13 | 2016-12-07 | 苏州天擎电子通讯有限公司 | The intelligence of a kind of multi-internet integration telecommunication goes haze system |
| CN106211427A (en) * | 2016-07-13 | 2016-12-07 | 苏州天擎电子通讯有限公司 | A kind of underground special CCD optic communication illuminator |
| CN106179740A (en) * | 2016-07-13 | 2016-12-07 | 苏州天擎电子通讯有限公司 | A kind of LBS positions artificial intelligence's dust arrester |
| CN106224808A (en) * | 2016-07-14 | 2016-12-14 | 苏州天擎电子通讯有限公司 | A kind of based on mobile interchange artificial intelligence's communications illuminating system |
| CN106195712A (en) * | 2016-07-14 | 2016-12-07 | 苏州天擎电子通讯有限公司 | A kind of based on microprocessor artificial intelligence control Intelligent flashlight |
| CN106195888A (en) * | 2016-07-14 | 2016-12-07 | 苏州天擎电子通讯有限公司 | A kind of communicate illumination dust pelletizing system based on mobile interchange artificial intelligence |
| CN106658814A (en) * | 2016-07-14 | 2017-05-10 | 苏州天擎电子通讯有限公司 | Intelligent anti-smog streetlight communication lighting system |
| CN106686799A (en) * | 2016-07-14 | 2017-05-17 | 苏州天擎电子通讯有限公司 | Smart searchlighting system for indoor short-range communication |
| CN106200463A (en) * | 2016-07-14 | 2016-12-07 | 苏州天擎电子通讯有限公司 | One removes haze system based on the artificial intelligence of microprocessor |
| CN108712678A (en) * | 2018-05-28 | 2018-10-26 | 许谐兴 | A kind of intelligent video frequency programme sharing method and its system based on LIFI communications |
| CN108712678B (en) * | 2018-05-28 | 2020-10-27 | 泰州市元和达电子科技有限公司 | Intelligent video program sharing method and system based on LIFI communication |
| CN109150305A (en) * | 2018-11-08 | 2019-01-04 | 徐州时空思维智能科技有限公司 | A kind of long distance laser communication device |
| CN109150305B (en) * | 2018-11-08 | 2024-02-02 | 徐州时空思维智能科技有限公司 | Remote laser communication device |
| CN110808786A (en) * | 2019-11-20 | 2020-02-18 | 中国船舶重工集团公司第七0五研究所 | High-power underwater wireless optical communication transmitter |
| CN114124219A (en) * | 2021-11-26 | 2022-03-01 | 浙江大学 | Detection bandwidth improving method based on series light emitting diode array applied to underwater wireless optical communication system |
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