JP4642439B2 - Lighting control system - Google Patents

Description

  The present invention relates to an illumination control system, and more particularly to an illumination control system that controls illumination in an indoor space in which a plurality of illumination devices with variable illuminance are arranged.

  In order to keep the illuminance in the room appropriately, the illuminance of the lighting device is widely controlled. For example, when the person is not present, the illumination is turned off, and when a person comes, the movement is detected and the illumination is turned on. In addition, systems that turn on at night and turn off during the day according to the detection of the illuminometer are widely used. Further, Patent Document 1 discloses a position information terminal-linked streetlight control system, in which communication between a portable terminal and a streetlight is enabled, and it is detected that a portable terminal has entered a communicable area of the streetlight. It is described that the light of the streetlight becomes high illuminance by the illuminance controller, and that the light is lowered when the portable terminal comes out of the communicable area of the streetlight.

JP 2003-157984 A

  As described above, the illuminance control according to the prior art is often based on the detection of the movement of a person or the like or the illuminance detection of an illuminometer. By the way, in the detection of the movement of a person or the like, if the person stops moving, the detection cannot be performed, and for example, the illumination may be turned off despite the presence of a person. In the method using entry / exit detection from the communication area as in Patent Document 1, lighting / extinguishing is complicated when there is a person near the area boundary or when entering / exiting the area is severe. Also, in the method of controlling the illumination with the illuminometer, the illuminometer is generally placed on the ceiling or wall and is separated from the desk or person where you want to illuminate, so illuminate the place to be illuminated with appropriate illuminance Is difficult.

  Thus, in the prior art, it is difficult to perform illumination control that appropriately secures the illuminance at the destination location of illumination.

  An object of the present invention is to provide an illumination control system that can appropriately ensure the illuminance of a target place.

An illumination control system according to the present invention includes a plurality of illuminance variable illumination devices arranged in an indoor space to be illuminated, a plurality of wireless base stations arranged in the indoor space to be illuminated, and an illuminance sensor. A wireless portable terminal that communicates with a plurality of wireless base stations including sensor detection data, a plurality of lighting devices and a plurality of wireless base stations connected by a network, and the plurality of wireless base stations and wireless portable terminals A control unit configured to set the illuminance of each lighting device based on the communication content, and the control unit is specified as means for specifying the position of the wireless portable terminal by communication between the plurality of wireless base stations and the wireless portable terminal. change the illumination closest illumination device positions, seen including a changing unit, a to illuminance detection data of the radio portable terminal is arbitrarily set illuminance, change means, most specified position Close to lighting equipment There change the illuminance, whereby when less than the illuminance set arbitrarily is characterized by having a switching means to switch to another lighting apparatus is close to the position specified target illuminance changes.

  Moreover, it is preferable that a control part performs control of a corresponding illuminating device according to at least one of the designation | designated of the illumination intensity from a wireless portable terminal, the designation | designated of lighting ON / OFF, or the designation | designated of an illuminating device.

In addition, an illumination control system according to the present invention includes a plurality of illumination devices with variable illuminance arranged in an indoor space to be illuminated, a plurality of wireless base stations arranged in the indoor space to be illuminated, and an illuminance sensor. A wireless portable terminal that communicates with a plurality of wireless base stations including detection data of an illuminance sensor, a plurality of illumination devices and a plurality of wireless base stations connected by a network, and the plurality of wireless base stations and the wireless portable terminal based on the communication contents of a control unit for setting a illuminance of the illumination devices are arranged in an indoor space of the illumination target, and a luminometer, which is connected by the control unit and the network, the control unit, the wireless mobile terminal Although the setting of the illuminance of the lighting devices based on the illuminance detection data from the luminance setting of the lighting devices based when the illuminance detected data from the wireless mobile terminal is not in illuminance detection data luminometer And wherein the Ukoto.

  In addition, the control unit sets the illuminance of each lighting device so that the illuminance detection data of the illuminometer becomes arbitrarily set low until communication from the wireless portable terminal via the wireless base station is acquired. Preferably it is done.

  With the above configuration, a plurality of wireless base stations are provided in an indoor space where a plurality of lighting devices are arranged, and these are connected to a control unit that controls lighting. And the wireless portable apparatus which can communicate with a wireless base station has an illuminance sensor. Therefore, when a person with this wireless portable device is in the indoor space, the illuminance sensor of the wireless portable device detects the illuminance at the place where the person is located, so that the detected data is communicated with the wireless base station through the network. Since the illumination device can be controlled based on the transmission to the control unit, the illuminance at the place where the person is present can be appropriately secured.

  In addition, because the position of the wireless portable device is specified by communication with a plurality of wireless base stations, and the illuminance of the lighting device in the vicinity of the specified position is changed, compared to the illuminance change of a distant lighting device, The illuminance at the position of the wireless portable device can be made appropriate efficiently.

  Also, change the illuminance of the illuminating device closest to the specified position, and when it is not the target, switch to the illuminance change of the nearby illuminating device, for example, the illuminating device closest to the obstacle such as a partition or screen Even when the illumination from the lighting device is not efficient, it is possible to automatically switch to changing the illuminance of another illuminating device and to make the illuminance at the position of the wireless portable device appropriate.

  In addition, since the corresponding lighting device is controlled by designation from the wireless portable device, it is possible to determine the owner of the wireless portable device or adjust the illuminance according to the preference.

  Moreover, since the data of the illuminometer fixed in the indoor space is used together, complementary illuminance control can be performed.

  Moreover, since it controls so that it may become low illumination intensity according to an illuminometer until there is communication from a wireless portable device, illumination can be suppressed so as not to be unnecessarily bright when there is no person.

  As described above, according to the illumination control system of the present invention, it is possible to appropriately ensure the illuminance at the destination location. In particular, it is possible to appropriately ensure the illuminance at the place where the holder of the wireless portable device is present.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In the following description, an office is taken up as an object of lighting, but other indoor spaces such as a lobby, a lavatory, a warehouse, and a staircase may be used. In addition, the illuminance sensor is provided in the mobile phone, but other wireless portable devices, for example, a PDA (Personal Digital Assistant) with a wireless communication function, or a dedicated wireless portable device having only the illuminance sensor. It may be a device.

  FIG. 1 is a diagram illustrating a configuration of a lighting control system 10 in the office 6. FIG. 1 shows a case where there are two users 8 and 9 in the office room 6, but the number of users varies every moment, and is not limited to these two persons. The positions of the named users 8 and 9 are not fixed in the office room 6 but are changed by movement or the like. In the lighting control system 10, a plurality of illumination devices 12 with variable illuminance, a plurality of wireless base stations 14 for wireless LAN (Local Area Network), etc., and a plurality of illuminometers 16 having fixed positions are provided on the ceiling of the office 6. Are connected to the control unit 30 via the LAN (18). In addition, the users 8 and 9 have wireless mobile terminals 20 and 21, and the wireless mobile terminals 20 and 21 have an illuminance sensor 22, and communicate with the wireless base station 14 to communicate with the illumination control system 10. Part of

  The control unit 30 includes a wireless control unit 32 having a function of controlling wireless communication between the wireless portable terminals 20 and 21 and the wireless base station 14, an illuminance sensor 22 of the wireless portable terminals 20 and 21, and an illuminance meter provided on the ceiling. The illumination control part 34 which has a function which controls the illumination intensity change of the illuminating device 12 based on 16 data, and the light control part 40 which has a function which controls the electric power supplied to the several illuminating device 12 are provided. The illuminance control unit 34 includes a position detection module 36 that detects a current position of the wireless portable device from a communication state between a specific wireless portable terminal, for example, the wireless portable terminal 20 and the plurality of wireless base stations 14, And an illuminance changing module 38 for giving an instruction to change the illuminance of the lighting device to the dimming control unit 40 based on the detected position. The control unit 30 can be configured by a dedicated control device or a computer. When configured using a computer, these functions can be realized by software, specifically by executing a corresponding lighting control program. Further, a part of each function, in particular, a high-frequency signal processing part of the wireless control unit 32, a power control part of the dimming control unit 40, and the like can be realized by hardware.

  Specifically, the illumination device 12 is a light emitter such as a lamp or an LED (Light Emission Device). Moreover, the illuminating device 12 is normally provided with the drive circuit of a light-emitting body. And the illumination intensity of the illuminating device 12 is varied by the controlled electric power supplied from the dimming control unit 40 to the drive circuit.

  The wireless base station 14 is a transmission / reception base station for communicating with a plurality of wireless devices in the office 6 and is arranged so that there are no blind spots or blind spots in the arrival area of radio waves from the plurality of wireless devices. A plurality are arranged on the ceiling. Of course, you may provide in the wall etc. of the office room 6 as needed. The wireless device to be communicated with is, for example, a mobile phone, an office device with a wireless function, or the like.

  The illuminometer 16 is a device that is fixed to the ceiling of the office 6 and measures the illuminance in the vicinity of the provided position. Specifically, a photosensitive semiconductor sensor, a photomultiplier tube, or the like can be used.

  Specifically, the wireless mobile terminals 20 and 21 with the illuminance sensor 22 are mobile phones provided with an illuminance sensor. Therefore, except for having the illuminance sensor 22, it has a function of a general mobile phone, and can communicate with a plurality of radio base stations 14 in the office 6, for example, make a call with another mobile phone, Data can be transmitted, and depending on the function, the operation of other wireless devices can be controlled. The illuminance sensor 22 is a small light-sensitive semiconductor sensor, and is provided, for example, at a suitable place on the surface of the mobile phone housing, preferably at a portion facing upward when inserted into a pocket or the like. Or when using a mobile telephone, you may provide in the site | part which faces just upward. The detection data of the illuminance sensor 22 is converted into a radio signal via an appropriate interface circuit, and transmitted from the antenna to the outside as one of the transmission signals of the mobile phone.

  In addition, the wireless portable terminals 20 and 21 have a function of performing settings related to illuminance. The setting relating to the illuminance can include setting of the target illuminance converted to the detection value of the illuminance sensor 22 that the illuminance has. For example, normally, assuming that the target illuminance is set to A lux as a standard value, B lux different from A lux can be set as a new target illuminance. The new set value of target illuminance is converted into a radio signal, transmitted to the control unit 30 via the radio base station 14, and the detection value of the illuminance sensor 22 becomes B lux by the function of the illuminance control unit 34 of the control unit 30. In addition, the illuminance adjustment of the plurality of lighting devices 12 is performed. A specific illuminance adjustment procedure will be described later.

  In addition, the setting related to illuminance can include designation of lighting ON / OFF. That is, by using the “illumination ON / OFF designation” mode of the wireless portable terminals 20 and 21, the wireless portable terminals 20 and 21 can be used as the ON / OFF switch of the lighting device 12. The ON / OFF designation may be a designation to turn on / off all the lighting devices 12 in the office 6 at the same time. An identification number is assigned to the lighting device 12 and only a specific lighting device 12 is designated to be turned on / off. May be. The designated ON / OFF signal is converted into a radio signal, transmitted to the control unit 30 via the radio base station 14, and ON / OFF control is performed for the designated lighting device 12 by the function of the control unit 30. .

  The operation of the illumination control system 10 having such a configuration, particularly each function of the control unit 30, will be described with reference to a flowchart. In the following description, the user is represented by one user 8. FIG. 2 is a flowchart showing a basic procedure for controlling the lighting of the office 6 based on the detection value of the illuminance sensor 22 of the wireless portable terminal 20. First, the office room 6 is controlled to the initial dimming state (S10). Specifically, an initial supply power corresponding to a preset initial illuminance is set by the function of the dimming control unit 40 and supplied to each lighting device 12, whereby the inside of the office 6 is predetermined. Illuminated at an initial illuminance of.

  Regarding the setting of the initial dimming, the initial supply power supplied to the individual lighting devices 12 may be different depending on circumstances such as the size of the office 6 and the arrangement of the indoor facilities. Further, until the signal from the wireless portable terminal 20 is received, it may be interpreted that there is no person in the office 6 and the initial dimming may be set to low illuminance. The low illuminance in this case may be set to a level that does not hinder human walking, considering that a person enters the office 6 and does not immediately receive a signal from the wireless portable terminal 20. preferable.

  Next, when a person carrying the wireless portable terminal 20 enters the office room 6, the illuminance data detected by the illuminance sensor 22 is transmitted from the wireless portable terminal 20 (S12). Since this process is not a process of the control unit 30, it is indicated by a broken line in FIG. This illuminance data is received by a plurality of radio base stations 14 in the office 6 (S14). Since this process is also not a process of the control unit 30, it is indicated by a broken line.

  Signals received by the plurality of radio base stations 14 are transmitted to the control unit 30 via the LAN (18). Then, necessary signal processing is performed in the wireless control unit 32, and the current position of the wireless portable terminal 20 is specified by the function of the position detection module 36 of the illuminance control unit 34 (S16). The current position of the wireless portable terminal 20 can be specified using a known technique such as a comparison of received signal strength at each wireless base station 14, for example. As a wireless signal used for position detection, a position detection standard signal transmitted by the wireless portable terminal 20 may be used in addition to the illuminance data signal. The position of the wireless portable terminal 20 is specified on the three-dimensional coordinates in the office 6.

  When the position of the wireless portable terminal 20 is specified, the process proceeds to illuminance change (S18). In the illuminance change, the illuminance data transmitted from the wireless portable terminal 20 is compared with a predetermined standard illuminance, and the illuminance of the illuminating device 12 is changed so as to become brighter when darker than the standard illuminance. Specifically, according to the function of the illuminance changing module 38 of the control unit 30, an instruction is given to the dimming control unit 40 according to a predetermined illuminance change rule, and the power supplied to each lighting device 12 is changed. As a rule for changing the illuminance, for example, when the difference between the detected value of the illuminance sensor 22 and the standard illuminance is 10% of the standard illuminance, the supply power can be changed by 10%. The illuminance change rule may be determined in the form of a look-up table, and the command value to the dimming control unit 40 may be output by inputting the detection value of the illuminance sensor 22. Alternatively, this rule may be determined in the form of calculation software, and the dimming control unit 40 may be controlled according to the detection value of the illuminance sensor 22.

  The illumination device 12 for changing the illuminance may of course change the illuminance uniformly for all of the illumination devices 12 regardless of the position of the wireless portable terminal 20. It is preferable to change the illuminance of only the nearby lighting device 12. Due to circumstances such as the size of the office room 6 and the arrangement of indoor facilities, not only the nearest lighting device 12 but also a plurality of lighting devices 12 in the vicinity of the current position of the wireless portable terminal 20 are uniformly or previously determined. It is good also as what changes those illumination intensity according to. At this time, the number of lighting devices 12 for changing the illuminance can be determined in advance according to the circumstances of the office 6. As an example, the illuminances of the three lighting devices 12 are changed from the closer distance around the position of the wireless portable terminal 20 specified in S16, and the illuminance change may be changed uniformly. . Or it is good also as what changes illumination intensity by the weight which becomes the inverse proportion of distance.

  After the illuminance change, the illuminance data of the illuminance sensor 22 of the wireless portable terminal 20 is again compared with the predetermined value determined by the standard illuminance (S20). If there is a difference from the predetermined value, the process returns to S18 and the illuminance change is performed again. That is, feedback control is performed in which the standard illuminance is set as a command value, illuminance data is input, and the difference between the illuminance data and the standard illuminance is zero. If the difference between the illuminance data and the standard illuminance is permanently zero, this flow ends, but in reality, the wireless portable terminal 20 may move, and the processing from S18 to S20 is performed by the wireless portable terminal. Continue until 20 goes out of office 6.

  FIG. 3 is a flowchart showing a procedure of illumination control when the standard illumination cannot be achieved by illumination control of the illumination device 12 closest to the wireless portable terminal 20 due to circumstances such as arrangement of indoor facilities in the office 6. In this case, since the steps from S10 to S16 in FIG. 2 are the same, the description thereof will be omitted, and a step subsequent to S16 will be described. In S16, the position of the wireless portable terminal 20 is specified, and as described above, as the most efficient and simple lighting control, the illuminance change of the lighting device 12 nearest to the specified position is performed (S30). The content of the illuminance change is determined as described above, for example, when the difference between the detected value of the illuminance sensor 22 and the standard illuminance is 10% of the standard illuminance, the supplied power is changed by 10%. I can do it. Then, the illuminance data of the illuminance sensor 22 of the wireless portable terminal 20 is compared again with a predetermined standard illuminance value (S32). When there is a difference, the illumination device 12 whose illuminance is changed is switched (S34). In other words, the rules for changing the illuminance are usually set in advance so that the standard illuminance can be reached sufficiently by changing the illuminance according to the rule. There is a possibility that an object exists between the latest lighting device 12 and the wireless portable terminal 20. Therefore, the illuminance change target illumination device is switched to another illumination device 12 in the vicinity of the wireless portable terminal 20. Preferably, the lighting device 12 is switched to the next closest to the wireless portable terminal 20. At the time of this switching, the illumination of the latest lighting device 12 may be turned off or may be turned on as it is. Then, again through S32, it is determined whether or not the standard illuminance is satisfied. If there is still a difference, the lighting device 12 is switched to the next closest lighting device 12. If there is no difference, the process returns to S18 in FIG. 2 and the feedback control for the standard illuminance is continued for the switched illumination device 12.

  FIG. 4 is a flowchart showing a procedure when the illuminance setting function of the wireless portable terminal 20 is used. The initial dimming process is the same as S10 in FIG. When the wireless portable terminal 20 enters the office 6 and the lighting instruction is set by the user using the illuminance setting function of the wireless portable terminal 20 as described above, the setting data is transmitted (S40). . This data is received by the plurality of radio base stations 14 (S42), transmitted to the control unit 30 via the network 18, and the indication illumination is changed (S44). The contents of S44 differ as follows depending on the contents of the indicator lighting.

  In the case where the content of the instruction illumination is that the standard illuminance is A lux and the designated illuminance is B lux, the predetermined value in S20 is corrected to B lux in the flowchart of FIG. Other illuminance change procedures remain the same. Therefore, by performing the procedure of the flowchart of FIG. 2, the illuminance can be changed so that the illuminance at the position of the wireless portable terminal 20 becomes B lux.

  Further, when the content of the instruction illumination is designated to perform ON / OFF control of the illumination device 12, the instruction is transmitted to the dimming control unit 40 of the control unit 30, and all the illumination devices 12 are accordingly transmitted. ON / OFF control of the power supplied to is performed. Thereby, it is possible to control ON / OFF of the entire lighting device 12 in the office 6 by the hand of the wireless portable terminal 20.

  Further, when the instruction lighting is designated to perform ON / OFF control of a specific lighting device 12, the instruction is transmitted to the dimming control unit 40 of the control unit 30, and the designated lighting is accordingly performed. ON / OFF control of the power supplied to the device 12 is performed. Thereby, it is possible to control ON / OFF of only the designated lighting device 12 at the hand of the wireless portable terminal 20.

It is a figure which shows the structure of the illumination control system in embodiment which concerns on this invention. It is a flowchart which shows the basic procedure of the illumination control in embodiment which concerns on this invention. In embodiment which concerns on this invention, it is a flowchart which shows the other procedure of illumination control. In embodiment concerning this invention, it is a flowchart which shows the procedure of illumination control when using the illumination intensity setting function of a wireless portable apparatus.

Explanation of symbols

  6 offices, 8 and 9 users, 10 lighting control systems, 12 lighting devices, 14 wireless base stations, 16 illuminance meters, 18 networks, 20, 21 wireless portable terminals, 22 illuminance sensors, 30 control units, 32 wireless control units, 34 illuminance control unit, 36 position detection module, 38 illuminance change module, 40 dimming control unit.

Claims (4)

A plurality of illumination devices with variable illuminance arranged in the indoor space to be illuminated; and
A plurality of radio base stations arranged in an indoor space to be illuminated;
A wireless portable terminal having an illuminance sensor and communicating with a plurality of wireless base stations including detection data of the illuminance sensor;
A plurality of lighting devices and a plurality of wireless base stations are connected by a network, and based on the communication contents between the plurality of wireless base stations and the wireless mobile terminal, a controller configured to set the illuminance of each lighting device,
The control unit
Means for identifying the position of the wireless portable terminal by communication between the plurality of wireless base stations and the wireless portable terminal;
Changing means for changing the illuminance of the illuminating device closest to the specified position so that the illuminance detection data of the wireless portable terminal is arbitrarily set illuminance,
Only including,
Change means
Change the illuminance of the lighting device closest to the specified position, and when it is less than the arbitrarily set illuminance, it has a switching means to switch the illuminance change target to another lighting device close to the specified position Lighting control system characterized by. A plurality of illuminance variable lighting devices arranged in the indoor space to be illuminated; and
A plurality of radio base stations arranged in an indoor space to be illuminated;
A wireless portable terminal having an illuminance sensor and communicating with a plurality of wireless base stations including detection data of the illuminance sensor;
A controller that is connected by a network with a plurality of lighting devices and a plurality of wireless base stations, and that sets the illuminance of each lighting device based on the communication content between the plurality of wireless base stations and the wireless mobile terminal,
It is arranged in the indoor space to be illuminated and comprises a luminometer connected to the control unit via a network,
The control unit sets the illuminance of each lighting device based on the illuminance detection data from the wireless portable terminal, but when there is no illuminance detection data from the wireless portable terminal, each illumination is based on the illuminance detection data of the illuminometer. An illumination control system for setting the illuminance of the apparatus. The lighting control system according to claim 2 .
The control unit
Until the communication from the wireless portable terminal through the wireless base station is acquired, the illuminance detection data of the illuminometer is set so that the illuminance detection data is arbitrarily set low illuminance. Lighting control system. In the lighting control system according to any one of claims 1 to 3 ,
The control unit
A lighting control system that controls a corresponding lighting device according to at least one of designation of illuminance from a wireless portable terminal, designation of lighting ON / OFF, or designation of a lighting device.

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