JP2015053130A - Lighting fixture specification device, lighting system, and lighting fixture specification method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a lighting fixture specification device which allows for easy and reliable association of identification information of each lighting fixture and installation places thereof, regardless of the manpower.SOLUTION: A processing section 25 accumulates illuminance data detected by a detector 10 for a predetermined time, by changing illuminance of a plurality of searched lighting fixtures with frequencies different from each other in a control section 26, calculates the illuminance for each frequency by performing frequency analysis of the illuminance data, and then specifies each of the plurality of searched lighting fixtures among a plurality of lighting fixtures, based on the illuminance for each frequency and a lookup table 21.

Description

  The present invention relates to a lamp specifying device, a lighting system, and a lamp specifying method.

  For example, Patent Literature 1 below discloses an illumination control system according to the background art. The system includes a plurality of lighting fixtures capable of dimming, and a dimming terminal that controls a dimming rate of a desired lighting fixture in the plurality of lighting fixtures according to ambient illuminance detected by an illuminance sensor. I have.

JP 2008-204897 A

  In the dimming control system disclosed in Patent Document 1, in order to control the dimming rate of a desired lighting fixture by the dimming terminal, each of the plurality of lighting fixtures is individually specified by the dimming terminal. There is a need. That is, it is necessary to associate in advance the identification information of each lighting fixture such as the MAC address or product serial number and the installation location of each lighting fixture.

  However, since the identification information of the luminaire and the installation location are usually irrelevant, in order to make these associations, the operator checks the identification information and the installation location individually when introducing the system. After installing the fixtures or randomly installing the fixtures, the operator needs to confirm the identification information of each fixture and make an association. Therefore, the work is complicated and there is a possibility that an erroneous association is made due to a work mistake.

  The present invention has been made in view of such circumstances, and in an illumination system in which a plurality of lamps having a dimming function are installed in a predetermined area, the identification information and the installation location of each lamp are manually determined. It is an object of the present invention to obtain a lamp specifying device, a lighting system, and a lamp specifying method that can be easily and reliably associated with each other.

  The lamp specifying device according to the first aspect of the present invention is an illumination system in which a plurality of lamps having a dimming function are installed in a predetermined area, wherein the area is used to associate identification information of each lamp with an installation location. It is a lamp specifying device arranged at a predetermined location, a control unit that controls the luminance of each lamp by communication, a detection unit that detects illuminance at the predetermined location, and a plurality of search target lamps by the control unit By changing the luminance at different frequencies, the illuminance data detected by the detection unit is accumulated for a predetermined time, and the illuminance data for each frequency is calculated by frequency analysis of the illuminance data. And a processing unit that identifies each of the plurality of search target lamps from the plurality of lamps based on correlation information of illuminance and distance. That.

  According to the lamp specifying device according to the first aspect, the processing unit accumulates the illuminance data detected by the detection unit for a predetermined time by changing the luminance of the plurality of search target lamps at different frequencies by the control unit, An illuminance value for each frequency is calculated by frequency analysis of the illuminance data, and each of a plurality of search target lamps is selected from a plurality of lamps based on the illuminance value for each frequency and the correlation information of illuminance and distance. Identify. As a result, it is possible to easily and reliably associate the lamp identification information and the installation location without depending on the hand. In addition, since it is not necessary to additionally mount a function for specifying a lamp on the side of a large number of lamps, an increase in system introduction cost can be minimized. Furthermore, since the brightness of each lamp is changed at a specific frequency, it is easy to distinguish it from outside light, so that it is possible to accurately specify the lamp without being affected by outside light.

  The lamp specifying device according to the second aspect of the present invention is characterized in that, in the lamp specifying device according to the first aspect, the processing unit changes the luminance of the plurality of search target lamps simultaneously. is there.

  According to the lamp specifying device according to the second aspect, the processing unit simultaneously changes the luminance of the plurality of search target lamps. Therefore, since a plurality of lamps can be specified collectively by a single search process, it is possible to speed up the process as compared with a case where a plurality of lamps are searched sequentially. Moreover, since the brightness of the plurality of search target lamps is changed at different frequencies, each search target lamp can be clearly distinguished by frequency analysis, and as a result, each of the plurality of search target lamps can be accurately identified. Is possible.

  The lamp specifying device according to the third aspect of the present invention is characterized in that, in the lamp specifying device according to the first aspect, the processing unit sequentially changes the luminance of the plurality of search target lamps. It is.

  According to the lamp specifying device according to the third aspect, the processing unit sequentially changes the luminance of the plurality of search target lamps. Therefore, since the processing load of the processing unit can be reduced as compared with the case where a plurality of lamps are searched simultaneously, it is possible to specify a plurality of lamps even when the processing capability of the processing unit is low. In addition, since the brightness of each lamp is changed at a specific frequency, it is easy to distinguish it from outside light. Therefore, it is possible to accurately specify the lamp without being affected by outside light.

  The lamp specifying device according to the fourth aspect of the present invention is the lamp specifying device according to any one of the first to third aspects, in particular, the detection unit includes a plurality of light receiving directions limited to different directions. It has a light receiving element.

  According to the lamp specifying device according to the fourth aspect, the detection unit has a plurality of light receiving elements whose light receiving directions are limited to different directions. Therefore, it is possible to estimate not only the distance from the predetermined location where the lamp specifying device is disposed to the lamp, but also the direction in which the lamp is installed at the predetermined location. As a result, even when a plurality of lamps are installed in a matrix, each lamp can be accurately identified.

  The lamp specifying device according to the fifth aspect of the present invention is the lamp specifying device according to any one of the first to third aspects, in particular, the detection unit includes a light receiving element having a limited light receiving direction and a light receiving direction. And a drive unit for driving the light receiving element so as to change the light receiving element.

  According to the lamp specifying device according to the fifth aspect, the detection unit includes the light receiving element whose light receiving direction is limited and the driving unit that drives the light receiving element so as to change the light receiving direction. Therefore, it is possible to estimate not only the distance from the predetermined location where the lamp specifying device is disposed to the lamp, but also the direction in which the lamp is installed at the predetermined location. As a result, even when a plurality of lamps are installed in a matrix, each lamp can be accurately identified.

  The lamp specifying device according to a sixth aspect of the present invention is the lamp specifying device according to any one of the first to third aspects, in particular, the detection unit includes a plurality of light receiving elements, and the plurality of light receiving devices. The element is arranged at a plurality of locations in the area.

  According to the lamp specifying device according to the sixth aspect, the detection unit has a plurality of light receiving elements, and the plurality of light receiving elements are arranged at a plurality of locations in the area. Therefore, it is possible to estimate the distances from the arrangement positions of the respective light receiving elements to the lamps. As a result, even when a plurality of lamps are installed in a matrix, each lamp can be accurately identified.

  The lamp specifying device according to the seventh aspect of the present invention is the lamp specifying device according to any one of the first to sixth aspects, in particular, a storage unit for storing the correlation information, and a lamp specifying unit by the processing unit. And a correction unit that corrects the correlation information stored in the storage unit based on the result.

  According to the lamp specifying device according to the seventh aspect, the correcting unit corrects the correlation information stored in the storage unit based on the result of the lamp specifying by the processing unit. Therefore, even if there is an error in the correlation information prepared in advance, it is possible to accurately specify the lamp thereafter by correcting the correlation information based on the actual measurement result.

  The lamp specifying device according to the eighth aspect of the present invention is particularly detected in the lamp specifying device according to any one of the first to seventh aspects by the detection unit before changing the luminance of the arbitrary lamp. A first register for holding the first illuminance data relating to the illuminance, and a second register for holding the second illuminance data relating to the illuminance detected by the detection unit after changing the luminance of the arbitrary lamp , And the processing unit, based on the first illuminance data held by the first register and the second illuminance data held by the second register, The illuminance value for each frequency is calculated.

  According to the lamp specifying device according to the eighth aspect, the first illuminance data related to the illuminance detected by the detection unit before changing the luminance of the lamp is held in the first register, and the luminance of the lamp is changed. The second illuminance data relating to the illuminance detected by the detection unit after the image is stored is held in the second register. Then, the processing unit calculates an illuminance value for each frequency based on the first illuminance data held in the first register and the second illuminance data held in the second register. As a result, it is possible to remove the influence of external light that fluctuates at a frequency that is the same as or approximate to the frequency of the lamp, and thus it is possible to calculate the illuminance value for each frequency easily and accurately.

  The lamp specifying device according to the ninth aspect of the present invention is the lamp specifying device according to any one of the first to eighth aspects, in particular, the processing unit sequentially updates the plurality of search target lamps. The plurality of lamps are specified in order.

  According to the lamp specifying device according to the ninth aspect, the plurality of lamps are sequentially specified by sequentially updating the plurality of search target lamps. Thereby, it becomes possible to specify all of the plurality of lamps installed in the area.

  The lamp specifying device according to the tenth aspect of the present invention is the lamp specifying device according to the ninth aspect, in particular, the processing unit excludes the lamp that has been specified or the lamp that has failed to be specified from the update target. It is characterized by.

  According to the lamp specifying device according to the tenth aspect, the lamp that has been specified or the lamp that has failed to be specified is excluded from the update target. By excluding the lamp that has been specified from the update target, it is possible to avoid a situation in which the specific process is performed again on the lamp that has been specified. Further, by excluding the lamp that has failed to be specified from the update target, it is possible to avoid a situation in which the specifying process is performed again for a lamp that cannot be specified. When there is a lamp that has failed to be specified, the lamp can be specified by changing the arrangement location of the lamp specifying device and performing the specifying process again.

  An illumination system according to an eleventh aspect of the present invention is an illumination system in which a plurality of lamps having a dimming function are installed in a predetermined area, and is connected to each of the plurality of lamps and adjusts the connected lamps. A lamp control device that performs light control, a main control device that controls the lamp control device in order to perform dimming control of the plurality of lamps based on environmental factors of the area, and identification information and installation locations of each lamp. A lamp specifying device arranged at a predetermined location in the area for associating, the lamp specifying device controlling a luminance of each lamp by communication, and a detection unit for detecting illuminance at the predetermined location And by changing the luminance of the plurality of search target lamps at different frequencies by the control unit, the illuminance data detected by the detection unit is accumulated for a predetermined time, and the illuminance data is A process of calculating an illuminance value for each frequency by analyzing and specifying each of the plurality of search target lamps from the plurality of lamps based on the illuminance value for each frequency and correlation information of the illuminance and the distance And a portion.

  According to the illumination system of the eleventh aspect, the processing unit accumulates the illuminance data detected by the detection unit for a predetermined time by changing the luminance of the plurality of search target lamps at different frequencies by the control unit, Calculate the illuminance value for each frequency by frequency analysis of the illuminance data, and identify each of the multiple search target lamps from the multiple lamps based on the illuminance value for each frequency and the correlation information of the illuminance and distance To do. As a result, it is possible to easily and reliably associate the lamp identification information and the installation location without depending on the hand. In addition, since it is not necessary to additionally mount a function for specifying a lamp on the side of a large number of lamps, an increase in system introduction cost can be minimized. Furthermore, since the brightness of each lamp is changed at a specific frequency, it is easy to distinguish it from outside light, so that it is possible to accurately specify the lamp without being affected by outside light.

  The lamp specifying method according to the twelfth aspect of the present invention is a lamp specifying method for associating identification information of each lamp with an installation location in an illumination system in which a plurality of lamps having a dimming function are installed in a predetermined area. A method comprising: (A) controlling the brightness of each lamp by communication; (B) detecting illuminance at a predetermined location in the area; and (C) a plurality of search objects by the step (A). By changing the brightness of the lamps at different frequencies, the illuminance data detected in the step (B) is accumulated for a predetermined time, and the illuminance data for each frequency is calculated by frequency analysis of the illuminance data. Identifying each of the plurality of search target lamps from the plurality of lamps based on the illuminance value of the lamp and the correlation information of the illuminance and the distance. It is an feature.

  According to the lamp specifying method according to the twelfth aspect, in step (C), the illuminance data detected in step (B) is obtained by changing the luminance of the plurality of search target lamps at different frequencies in step (A). Is calculated for a predetermined time, and an illuminance value for each frequency is calculated by frequency analysis of the illuminance data, and based on the illuminance value for each frequency and the correlation information of the illuminance and distance, the lamp is selected from the plurality of lamps. Each of the plurality of search target lamps is specified. As a result, it is possible to easily and reliably associate the lamp identification information and the installation location without depending on the hand. In addition, since it is not necessary to additionally mount a function for specifying a lamp on the side of a large number of lamps, an increase in system introduction cost can be minimized. Furthermore, since the brightness of each lamp is changed at a specific frequency, it is easy to distinguish it from outside light. Therefore, it is possible to accurately specify the lamp without being affected by outside light.

  According to the present invention, in a lighting system in which a plurality of lamps having a dimming function are installed in a predetermined area, the identification information of each lamp and the installation location can be easily and reliably associated with each other without depending on human hands. A possible lamp specifying device, lighting system, and lamp specifying method can be obtained.

It is a figure which shows an example of the installation environment of the illumination system which concerns on embodiment of this invention. It is a figure which shows an example of the installation environment of the illumination system which concerns on embodiment of this invention. It is a figure which shows the structural example of the illumination system which concerns on this Embodiment. It is a figure which shows the communication aspect between the apparatuses which comprise an illumination system. It is a figure which shows the modification of the communication aspect between the apparatuses which comprise an illumination system. It is a figure which shows the modification of the communication aspect between the apparatuses which comprise an illumination system. It is a block diagram which shows the internal structure of the lamp identification device shown in FIG. It is a figure which shows typically the external appearance structure of a detection part. It is a figure which shows typically the modification of a structure of a detection part. It is a flowchart which shows the flow of the lamp specific process which a lamp specific device performs. It is a figure which shows an example of grid data. It is a figure which shows the grid data in which the arrangement | positioning location and arrangement direction of a lamp specific device were set. It is a figure which shows an example of grid data. It is a figure which shows typically the external appearance structure of one detection part. It is a flowchart which shows the flow of the lamp specific process which a lamp specific device performs. It is a figure which shows the grid data in which the arrangement | positioning location of each detection part was set. It is a block diagram which shows the internal structure of the lamp identification device shown in FIG. It is a flowchart which shows the flow of the lamp specific process which a lamp specific device performs.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the element which attached | subjected the same code | symbol in different drawing shall show the same or corresponding element.

  1 and 2 are diagrams illustrating an example of an installation environment of a lighting system according to an embodiment of the present invention. In the example of the present embodiment, the lighting system is installed in area 1 which is a room in the office. In the area 1, a plurality of lamps 2 (9 lamps 2A to 2I in this example) having a dimming function are arranged in a grid at regular intervals. The lamp 2 is, for example, a straight tube type Hf lamp or an LED lamp. Each lamp 2 is given unique identification information such as a MAC address or a product serial number. However, the installation location of each lamp 2 is random, and there is no direct relationship between the identification information of the lamp 2 and the installation location. Note that the lighting system according to the present embodiment is not limited to an office, but can be applied to any environment where a plurality of lamps are installed in a certain area, such as a school, a hospital, a library, a station, an airport, a store, etc. it can.

  FIG. 3 is a diagram illustrating a configuration example of the illumination system according to the present embodiment. The illumination system includes a lamp control device 3 connected to each lamp 2, a main control device 4, and a lamp specifying device 5. In this example, the lamp control devices 3A to 3I are connected to the lamps 2A to 2I, respectively.

  The lamp control device 3 is based on a command from the main control device 4 or the lamp specifying device 5, and includes PWM (Pulse Width Modulation), PAM (Pulse Amplitude Modulation), PDM (Pulse Density Modulation), PFM (Pulse Frequency Modulation), etc. Dimming control of the lamp 2 connected to itself is carried out by arbitrary control methods. The main control device 4 communicates using wireless communication, PLC communication, or dedicated wired communication in order to perform dimming control of the lamps 2A to 2I based on various environmental factors (external light illuminance or presence / absence of a person) in the area 1 The lamp control devices 3A to 3I are controlled by an arbitrary communication method such as communication using general-purpose Ethernet (registered trademark) (a plurality of communication methods may be combined). The lamp specifying device 5 performs lamp specifying processing (details will be described later) for associating the identification information of each lamp 2 with the installation location.

  FIG. 4 is a diagram illustrating a communication mode between devices constituting the illumination system. The lamp specifying device 5 can directly communicate with the lamp control device 3 and the main control device 4, and the main control device 4 can directly communicate with the lamp control device 3 and the lamp specifying device 5. Can communicate directly with the lamp specifying device 5 and the main control device 4. Communication between the devices is performed by the above-described arbitrary communication method.

  5 and 6 are diagrams illustrating a modification of a communication mode between devices constituting the illumination system. In the example shown in FIG. 5, the lamp specifying device 5 can communicate directly with the main control device 4 and can communicate with the lamp control device 3 via the main control device 4. The main control device 4 can directly communicate with the lamp control device 3 and the lamp specifying device 5. The lamp control device 3 can communicate directly with the main control device 4 and can communicate with the lamp specifying device 5 via the main control device 4.

  In the example shown in FIG. 6, the function of the lamp specifying device 5 is mounted on the main control device 4, so that the dedicated lamp specifying device 5 is omitted. The main control device 4 and the lamp control device 3 can directly communicate with each other.

  FIG. 7 is a block diagram showing an internal configuration of the lamp specifying device 5 shown in FIG. As shown in the connection relationship of FIG. 7, the lamp specifying device 5 includes a detection unit 10, amplification circuits 111 to 114, low-pass filters 121 to 124, current-voltage conversion circuits 131 to 134, a selection circuit 14 such as a multiplexer, and an AD converter 15. , A CPU 16, an input unit 17, a communication unit 18, a register 19, and a storage unit 20 such as a semiconductor memory or a magnetic disk. The detection unit 10 includes light receiving elements 101 to 104 such as photodiodes. The CPU 16 functions as a processing unit 25, a control unit 26, and a correction unit 27 by operating according to a predetermined program. The storage unit 20 stores a lookup table 21 that represents correlation information between illuminance and distance. The input unit 17 is data input from an operation switch or a touch panel provided in the lamp specifying device 5, or data input using a keyboard or a mouse connected to the lamp specifying device 5, or a PC or Data received from a general-purpose terminal such as a portable terminal via an arbitrary communication path such as a LAN is input to the CPU 16.

  FIG. 8 is a diagram schematically illustrating an external configuration of the detection unit 10. FIG. 8A is a top view, and FIG. 8B is a side view. A cross-shaped light shielding plate 31 is fixed on the substrate 30. Each of the light receiving elements 101 to 104 is formed in each region divided by the light shielding plate 31. Thereby, the light receiving direction of each of the light receiving elements 101 to 104 is limited by the light shielding plate 31. In addition, instead of the above-described configuration in which the light receiving direction is limited using the light shielding plate 31, a directional lens (or a prism, a mirror, or the like) is disposed on each of the light receiving elements 101 to 104, thereby The light receiving direction of the elements 101 to 104 may be limited. Further, instead of the above configuration in which the light receiving direction of 360 degrees is divided into four by the four light receiving elements 101 to 104, for example, a configuration in which the light receiving direction is divided into eight by eight light receiving elements may be employed. With this configuration, the direction detection accuracy can be improved and the dynamic range of the detection unit 10 can be expanded.

  FIG. 9 is a diagram schematically illustrating a modified example of the configuration of the detection unit 10. FIG. 9A is a perspective view, and FIG. 9B is a top view. A lens 52 (or a simple opening window) may be disposed on a part of the light-shielding dome-shaped case 51 that covers the light receiving element 101. Thereby, the light receiving direction of the light receiving element 101 is limited. Further, the sensor unit including the light receiving element 101, the case 51, and the lens 52 is rotationally driven along the outer circumferential direction as shown in FIG. 9B by a driving unit 53 such as a motor attached to the bottom of the sensor unit. The Thereby, the limited light receiving direction of the light receiving element 101 is changed.

  FIG. 10 is a flowchart showing the flow of the lamp specifying process executed by the lamp specifying device 5.

  First, before starting the lamp specifying process, a lookup table 21 corresponding to the environment of area 1 is created in advance by the processing unit 25, and the lookup table 21 is stored in the storage unit 20.

  The operator obtains data on the ceiling height of area 1, work surface height (desk height), lamp 2 installation status (interval, direction, number, layout, etc.), light distribution curve, and direct horizontal plane illuminance characteristics. , Input from the input unit 17. The processing unit 25 creates grid data corresponding to the installation environment of the lamp 2 based on these input data.

  FIG. 11 is a diagram illustrating an example of grid data. The grid intersections P <b> 1 to P <b> 9 correspond to the center point of each lamp 2. In this example, the installation interval of the lamp 2 in the X direction is 1.6 m, and the installation interval of the lamp 2 in the Y direction is 1.85 m. The ceiling height is 2.7 m, and the work surface height is 0.7 m.

  The processing unit 25 turns on only the lamp 2 corresponding to any one of the intersections P1 to P9 (in this example, the central intersection P5) with a predetermined luminance (for example, the highest luminance), and turns off all other lamps 2. The illuminance at the work surface height at each of the intersections P1 to P9 when the above situation is assumed is calculated. For the calculation of the illuminance, any illuminance calculation method such as a point method can be used. In the point by point method, the illuminance is proportional to the inverse square of the distance. In this example, the illuminance at the intersection P5 is 249 lx, the illuminance at the intersections P2 and P8 is 117 lx, the illuminance at the intersections P4 and P6 is 84 lx, and the illuminance at the intersections P1, P3, P7, and P9 is 54 lx. The processing unit 25 creates a lookup table 21 representing correlation information between the illuminance and the distance by parameterizing the correlation between the horizontal illuminance and the horizontal plane distance based on the result of the illuminance calculation. Then, the created lookup table 21 is stored in the storage unit 20.

  In addition, the operator places the lamp specifying device 5 at an arbitrary position in the area 1 (in this example, directly below the central lamp 2F) at a work surface height. At that time, the operator adjusts the arrangement direction of the lamp specifying device 5 so that, for example, the light receiving element 101 faces the + X direction in FIG. 11 and the light receiving element 102 faces the + Y direction. Then, the arrangement location and the arrangement direction of the lamp specifying device 5 are input from the input unit 17.

  Referring to FIG. 10, in step SP101, processing unit 25 sets search conditions. Specifically, the location and orientation of the lamp specifying device 5 are set on the grid shown in FIG. FIG. 12 is a diagram showing grid data in which an arrangement location and an arrangement direction of the lamp specifying device 5 are set. In this example, the lamp specifying device 5 (detection unit 10) is disposed on the intersection P5.

  Next, in step SP102, the processing unit 25 initializes a search exclusion lamp list indicating the lamps 2 to be excluded from the update target.

  Next, in step SP103, the processing unit 25 sets different frequencies for a plurality of lamps to be searched (all lamps 2A to 2I in the example of the present embodiment). As an example, when the identification information of the lamps 2A to 2I is IDA to IDI, respectively, the processing unit 25 sets a frequency Fa (for example, 100 Hz) that is one times the basic frequency for the lamp 2A of the identification information IDA to identify the lamps 2A to 2I. A frequency Fb (200 Hz) that is twice the basic frequency is set for the lamp 2B of information IDB, and a frequency Fc (300 Hz) that is three times the basic frequency is set for the lamp 2C of identification information IDC. Similarly, for the lamps 2D to 2I of the identification information IDD to IDI, 4 times (400 Hz), 5 times (500 Hz), 6 times (600 Hz), 7 times (700 Hz), 8 times (800 Hz) of the fundamental frequency, Nine times (900 Hz) frequencies Fd to Fi are set. In addition, when an enormous number of lamps 2 are installed in the area 1 and different frequencies cannot be set for all the lamps 2 at once, the upper limit number of lamps 2 that can set different frequencies is set to all the lamps 2. What is necessary is just to select arbitrarily from among and set a mutually different frequency with respect to the lamp 2 of the selected upper limit number. After the position specification for the selected upper limit number of lamps 2 is completed, the position specification for the remaining unselected lamps 2 can be performed by updating the search target lamp.

  Next, in step SP104, the processing unit 25 simultaneously changes the luminance of all the lamps 2A to 2I at a frequency Fa to Fi set for each of the lamps 2A to 2I between a predetermined upper limit luminance and a lower limit luminance. The processing unit 25 periodically changes the luminance of each of the lamps 2A to 2I so that the luminance fluctuation becomes a sine wave. Moreover, the process part 25 starts the brightness | luminance fluctuation | variation of all the lamps 2A-2I simultaneously by controlling the start timing of a brightness | luminance fluctuation | variation. In the example of the present embodiment, the upper limit luminance is set to the highest luminance and the lower limit luminance is set to the lowest luminance (that is, extinguished) in order to increase the amount of variation in luminance and improve the lamp specifying accuracy. Periodic lighting and extinction are repeated periodically. For example, regarding the lamp 2A, the processing unit 25 inputs a command for repeating turning on and off at the maximum luminance at the frequency Fa to the control unit 26, and the control unit 26 transmits the command input from the processing unit 25 to the communication unit 26. This is transmitted to the lamp control device 3A via the unit 16. Accordingly, the lamp control device 3A repeats lighting and extinguishing of the lamp 2A at the maximum luminance at the frequency Fa. The same applies to the other lamps 2B to 2I. As a result, luminance fluctuations at the frequencies Fa to Fi are simultaneously performed for all the lamps 2A to 2I. In addition, when sufficient lamp specifying accuracy can be ensured even with a slight luminance fluctuation amount by using the high sensitivity light receiving elements 101 to 104, the upper limit luminance is set lower than the maximum luminance, or the lower limit luminance is set to the minimum luminance. May be set higher. As long as sufficient lamp specifying accuracy can be ensured, the luminance fluctuation amount of the lamp 2 may be at a level that cannot be detected by a human.

  Next, in step SP105, the detection unit 10 continuously detects the illuminance at the place where the lamp specifying device 5 is arranged for a predetermined time in a situation where the luminance of all the lamps 2A to 2I is simultaneously changed periodically at the frequencies Fa to Fi. The predetermined time is set to a time longer than the longest period corresponding to the lowest frequency among the frequencies Fa to Fi (desirably, a time that is several times longer than the longest period). Referring to FIG. 7, the current values output from light receiving elements 101 to 104 are amplified by amplification circuits 111 to 114, respectively, and noise is removed by low pass filters 121 to 124, respectively. Each of them is converted into a voltage value by 114. The voltage values output from the current-voltage conversion circuits 111 to 114 are sequentially selected by the selection circuit 14 based on the control of the CPU 16, input to the AD converter 15, converted into a digital value by the AD converter 15, and then sequentially input to the CPU 16. Entered. The processing unit 25 stores the voltage values (that is, the illuminance values detected by the light receiving elements 101 to 104) input from the AD converter 15 to the CPU 16 in the register 19.

  Next, in step SP106, the processing unit 25 performs frequency analysis on the illuminance data stored in the register 19 using a mathematical method such as a well-known Fourier series expansion, thereby changing the illuminance change amount for each frequency. Is calculated. Specifically, the processing unit 25 includes individual difference values D101 to D104 (frequency Fa) that are spectra corresponding to the difference values of illuminance detected by the respective light receiving elements 101 to 104 (difference values between the maximum illuminance value and the minimum illuminance value). (Individual difference value for each Fi) is calculated. In the present embodiment, the luminance fluctuations of all the lamps 2A to 2I are started simultaneously, and the recording of the illuminance data to the register 19 is also started simultaneously for all the lamps 2A to 2I. Therefore, the amplitude of the sine wave component and the cosine wave component Instead of calculating the spectrum of each frequency as a mean square with the amplitude of the sine wave, the amplitude of the sine wave component can be directly calculated as a spectrum. That is, the calculation for calculating the spectrum can be simplified.

  Next, in step SP107, the processing unit 25 looks up the maximum individual difference value DMAX (the individual difference value that is the maximum among the individual difference values D101 to D104 detected by the light receiving elements 101 to 104) for each of the frequencies Fa to Fi. Based on the table 21, the horizontal plane distance between the place where the lamp specifying device 5 is arranged and the place where the lamps 2A to 2I are installed is estimated. Referring to FIG. 11, for example, when the maximum individual difference value DMAX is 249 lx, the processing unit 25 estimates the horizontal plane distance as 0 m, and when the maximum individual difference value DMAX is 117 lx, the processing unit 25 sets the horizontal plane distance to 1. Estimated 6m. In the example of the present embodiment, since the maximum individual difference value DMAX related to the frequency Ff is approximately 249 lx, the horizontal plane distance between the lamp specifying device 5 and the lamp 2F is estimated to be 0 m. Further, since the maximum individual difference value DMAX for the frequencies Fg and Fh is approximately 117 lx, the horizontal plane distance between the lamp specifying device 5 and the lamps 2G and 2H is estimated to be 1.6 m. Further, since the maximum individual difference value DMAX regarding the frequencies Fc and Fi is approximately 84 lx, the horizontal plane distance between the lamp specifying device 5 and the lamps 2C and 2I is estimated to be 1.85 m. Further, since the maximum individual difference value DMAX for the frequencies Fa, Fb, Fd, and Fe is approximately 54 lx, the horizontal plane distance between the lamp specifying device 5 and the lamps 2A, 2B, 2D, and 2E is estimated to be 2.45 m. The processing unit 25 creates lamp-distance related information by associating the estimated horizontal plane distances with the identification information IDA to IDI of the lamps 2A to 2I, and stores the lamp-distance related information in the storage unit 20. Instead of creating the lookup table 21 in advance and storing it in the storage unit 20, an operation for calculating the horizontal plane distance from the maximum individual difference value DMAX by a point method or the like may be performed in step SP107.

  Next, in step SP108, the processing unit 25 selects any one of the lamps 2A to 2I whose identification information is described in the lamp-distance related information, for which the installation location has not been specified (the following lamps are described below). In the example, the lamp 2A is selected.

  Next, in step SP109, based on the horizontal plane distance of the lamp 2A described in the lamp-distance related information, the processing unit 25 determines whether the horizontal plane distance is within a range in which the installation location of the lamp 2A can be specified. To do. If the distance from the place where the lamp specifying device 5 is arranged to the place where the lamp 2A is installed is too long, the influence of the luminance change of the lamp 2A on the detected illuminance is small, so the maximum individual difference value DMAX becomes small. The estimated distance becomes longer. When this estimated distance becomes larger than a predetermined threshold, the accuracy of lamp specification is lowered. Therefore, the processing unit 25 excludes the identification information IDA of the lamp 2A from the search, assuming that it is out of the specifiable range in that case. It adds to a lamp list (step SP112). The search-excluded lamp list enumerates the sub-list (hereinafter referred to as “out-of-range list”) for identifying and managing lamp identification information determined to be outside the specifiable range, and lists the identification information for lamps that have been identified. And a sub-list (hereinafter referred to as “specific completion list”) for management. When the estimated distance regarding a certain lamp becomes larger than the threshold value, the processing unit 25 adds the identification information of the lamp to the out-of-range list.

  On the other hand, when the horizontal plane distance of the lamp 2A described in the lamp-distance related information is less than the threshold, the processing unit 25 next compares the individual difference values D101 to D104 with respect to the frequency Fa in step SP110. (Distribution analysis) is performed to estimate the direction of the place where the lamp 2A is installed with respect to the place where the lamp specifying device 5 is arranged. For example, when the individual difference values D101 to D104 are all large, the processing unit 25 estimates that the installation location of the lamp 2A is the center on the grid. Further, for example, when the individual difference value D101 is relatively large and the individual difference values D102 to D104 are relatively small, the processing unit 25 determines that the installation location of the lamp 2A is on the grid with respect to the arrangement location of the lamp identification device 5. Presumed to be in the upward direction (+ X direction). In addition, for example, when the individual difference value D104 is relatively large and the individual difference values D101 to D103 are relatively small, the processing unit 25 determines that the installation location of the lamp 2A is on the grid with respect to the arrangement location of the lamp identification device 5. Presumed to be in the left direction (−Y direction). Further, for example, when the individual difference values D103 and D104 are relatively large and the individual difference values D101 and D102 are relatively small, the processing unit 25 determines that the installation location of the lamp 2A is a grid with respect to the arrangement location of the lamp identification device 5. Presumed to be the upper left lower direction (−X and −Y directions). In this example, the individual difference values D101 to D104 related to the frequency Fa are relatively large in the individual difference values D101 and D104 and relatively small in the individual difference values D102 and D103. The installation location of the lamp 2A is estimated to be in the upper left direction (+ X and −Y direction) on the grid.

  Next, in step SP111, the processing unit 25 identifies an intersection corresponding to the lamp 2A among the intersections P1 to P9 on the grid, based on the distance estimation result in step SP107 and the direction estimation result in step SP110. In this example, it is narrowed down to the intersections P1, P3, P7, and P9 whose horizontal plane distance is about 2.45 m from the distance estimation result, and is narrowed down to the intersection P1 that is the upper left direction from the direction estimation result, so that the lamp 2A The corresponding intersection is identified as intersection P1.

  Here, after step SP111, the operator may determine whether the intersection is specified correctly. If the intersection identification result is incorrect, the setting of the lookup table 21 (that is, the correlation between illuminance and distance) may be incorrect. Therefore, the set value of the lookup table 21 may be reviewed so that a correct specific result is obtained, and a correction value for correcting the current set value to the correct set value may be input from the input unit 17. Referring to FIG. 7, the correction unit 27 corrects the lookup table 21 based on the input correction value. The correction unit 27 may calculate the correction value by itself and correct the lookup table 21 by inputting information indicating the correct intersection P1 from the input unit 17 instead of inputting the correction value.

  Referring to FIG. 10, next, in step SP112, the processing unit 25 adds the identification information IDA of the specified lamp 2A to the search exclusion lamp list. Specifically, the identification information IDA of the lamp 2A is added to the specific completion list.

  Next, in step SP113, the processing unit 25 determines whether or not an unselected lamp exists in all the lamps 2 whose identification information is described in the lamp-distance related information. If there is an unselected lamp 2, the identification information is updated, and then the processing after step SP108 is repeated. For example, by updating the identification information in the order of IDA → IDB → IDC →... → IDI, the installation location is specified in the order of lamps 2A → 2B → 2C →.

  Next, in step SP114, the processing unit 25 determines whether or not the search for all the lamps 2A to 2I has been completed. If there is an unsearched lamp 2, the identification information is updated, and then the processing after step SP103 is repeated. Here, the identification information listed in the search exclusion lamp list (out-of-range list and specific completion list) is excluded from the update target. On the other hand, when there is no unsearched lamp 2 (that is, when the search for all the lamps 2A to 2I is completed), the lamp specifying process is ended.

  When the lamp specifying process by the lamp specifying device 5 ends, the identification information IDA to IDI of each lamp 2A to 2I and the installation location are associated with each other. Information relating to the association between the identification information and the installation location is input from the lamp specifying device 5 to the main control device 4, and the main control device 4 uses the lamp control devices 3A to 3I for the desired lamps 2A to 2I based on the information. Dimming control is performed.

  In the above description, an example in which each lamp 2 is specified by the lamp specifying device 5 is described assuming an environment in which nine lamps 2A to 2I of 3 rows × 3 columns are installed in a grid shape. It is not limited to this example. By using the detection unit 10 with high light receiving sensitivity, it is possible to specify each lamp 2 by the lamp specifying device 5 even in a wider environment where a larger number of lamps 2 are installed.

<First Modification>
FIG. 13 is a diagram illustrating an example of grid data. In an environment such as a waiting room in a hospital or a large meeting room in an office where the area 1 is vast and a large number of lamps 2 are installed therein, it depends on the light receiving sensitivity of the light receiving elements 101 to 104. It is difficult to specify all the lamps 2 only by searching. Therefore, in such a case, the area 1 can be divided into a plurality of sub-areas R1 to R9, and the search can be sequentially performed while moving the arrangement location of the lamp specifying device 5 for each of the sub-areas R1 to R9. Or it can also search simultaneously about all the subareas R1-R9 by arrange | positioning the lamp specific device 5 (or detection part 10) in each subarea R1-R9, respectively. When searching in order while moving the arrangement location of the lamp specifying device 5, with respect to the lamp whose identification information has been added to the out-of-range list in the search at a certain arrangement location, at the start of the search at the next arrangement location By initializing the out-of-range list, it is included in the search target at the next arrangement location. On the other hand, for lamps for which identification information has been added to the specific completion list in a search at a certain arrangement location, by not initializing the specific completion list at the start of the search at the subsequent arrangement location, Excluded from the search target. As the search proceeds, the identification information of the lamps that have been specified is gradually accumulated in the specified completion list. Therefore, the number of lamps to be searched decreases as the search is performed later, and as a result, the time required for search is shortened.

<Second Modification>
In the embodiment described above, the four light receiving elements 101 to 104 are formed on the same substrate 30. However, the plurality of detection units 10 are configured independently by dispersing the light receiving elements 101 to 104. Also good.

  FIG. 14 is a diagram schematically illustrating an external configuration of one detection unit 10. One light receiving element 101 is formed on the substrate 30. Although not shown, the light receiving elements 102 to 104 are similarly formed on the substrates 30 for the other light receiving elements 102 to 104. Accordingly, the four detection units 10 (detection units 10-1 to 10-4) are configured independently.

  FIG. 15 is a flowchart showing the flow of the lamp specifying process executed by the lamp specifying device 5.

  Similar to the above embodiment, the lookup table 21 is created in advance and stored in the storage unit 20 before starting the lamp specifying process.

  Further, the operator places the four detection units 10-1 to 10-4 at any four positions in the area 1 (in this example, directly below the lamps 2A, 2B, 2D, and 2E at the four corners). Place with. Then, the arrangement location and the arrangement direction of the lamp specifying device 5 are input from the input unit 17.

  Referring to FIG. 15, in step SP201, processing unit 25 sets search conditions. Specifically, the arrangement location of each detection unit 10 is set on the grid shown in FIG. FIG. 16 is a diagram illustrating grid data in which an arrangement location of each detection unit 10 is set. In this example, detection units 10-1, 10-2, 10-3, and 10-4 are arranged on intersections P1, P3, P7, and P9, respectively.

  Next, in step SP202, the processing unit 25 initializes the search exclusion lamp list.

  Next, in step SP203, the processing unit 25 sets different frequencies Fa to Fi for the lamps 2A to 2I to be searched.

  Next, in step SP204, the processing unit 25 sets the brightness of all the lamps 2A to 2I between the predetermined upper limit brightness (the highest brightness in this example) and the predetermined lower limit brightness (the lowest brightness in this example). The period is simultaneously changed at frequencies Fa to Fi set to ˜2I.

  Next, in step SP205, the detection unit 10 continuously calculates the illuminance at the locations where the detection units 10-1 to 10-4 are arranged for a predetermined time in a situation where the luminance of all the lamps 2A to 2I is periodically changed at the frequencies Fa to Fi. To detect. The processing unit 25 stores the illuminance value detected by each of the light receiving elements 10-1 to 10-4 in the register 19.

  Next, in step SP206, the processing unit 25 calculates a spectrum by performing frequency analysis on the illuminance data stored in the register 19. Specifically, the processing unit 25 obtains individual difference values D101 to D104 (individual difference values for each frequency Fa to Fi), which are spectra corresponding to the difference values of illuminance detected by the detection units 10-1 to 10-4. calculate.

  Next, in step SP207, the processing unit 25, based on the individual difference values D101 to D104 and the lookup table 21 for each frequency Fa to Fi, and the locations of the detection units 10-1 to 10-4 and the lamps 2A to 2A. Estimate the horizontal distance from the 2I installation location. The processing unit 25 creates lamp-distance related information by associating the identification information IDA to IDI of each lamp 2A to 2I with the estimated horizontal plane distance, and stores the lamp-distance related information in the storage unit 20. .

  Next, in step SP208, the processing unit 25 selects any one of the lamps 2A to 2I whose identification information is described in the lamp-distance related information, for which the installation location has not been specified (the following lamps are described below). In the example, the lamp 2A is selected.

  Next, in step SP209, based on the horizontal plane distance (four horizontal plane distances) of the lamp 2A described in the lamp-distance related information, the processing unit 25 is within a range in which each horizontal plane distance can specify the installation location of the lamp 2A. It is determined whether or not there is. When two or more of the four horizontal plane distances are larger than a predetermined threshold value, the accuracy of lamp specification is lowered. Therefore, in this case, the processing unit 25 determines that the lamp 2A is out of the specifiable range. Is added to the search exclusion lamp list (out-of-range list) (step SP211).

  On the other hand, if three or more of the four horizontal plane distances are less than the threshold value, then in step SP210, the processing unit 25 determines the intersection points P1 to P9 on the grid based on the distance estimation result in step SP207. Among these, the intersection corresponding to the lamp 2A is specified. Specifically, the processing unit 25 draws four (at least three) circles with the radius being the horizontal plane distance from the location where the detector 10 is placed to the location where the lamp 2A is placed, with the location where the detector 10 is located as the center, The intersections P1 to P9 located on the intersections or contact points of the four circles are specified as the intersections corresponding to the lamp 2A.

  Next, in step SP211, the processing unit 25 adds the identification information IDA of the lamp 2A that has been specified to the search exclusion lamp list (specific completion list).

  Next, in step SP212, the processing unit 25 determines whether or not an unselected lamp exists in all the lamps 2 whose identification information is described in the lamp-distance related information. If there is an unselected lamp 2, the identification information is updated, and then the processing after step SP208 is repeated.

  Next, in step SP213, the processing unit 25 determines whether or not the search for all the lamps 2A to 2I has been completed. If there is an unsearched lamp 2, the identification information is updated, and then the processing after step SP203 is repeated. On the other hand, when the search for all the lamps 2A to 2I is completed, the lamp specifying process is ended.

<Third Modification>
In the said embodiment, the process part 25 performed the position specification of all the lamps 2A-2I collectively by changing the brightness | luminance of all the lamps 2A-2I simultaneously with frequency Fa-Fi at step SP104. Instead, the processing unit 25 may sequentially specify the positions of the respective lamps 2A to 2I by sequentially changing the luminance of the respective lamps 2A to 2I periodically at the frequencies Fa to Fi. For example, first, the position of the lamp 2A is specified by periodically changing the luminance of the lamp 2A at the frequency Fa, and then the position of the lamp 2B is specified by changing the luminance of the lamp 2B at the frequency Fb. The position of the lamp 2C is specified by periodically changing the brightness of 2C at the frequency Fc. In the same manner, the positions of the lamps 2D to 2I are sequentially specified by sequentially changing the luminance of the lamps 2D to 2I sequentially at the frequencies Fd to Fi.

<Fourth Modification>
FIG. 17 is a block diagram showing an internal configuration of the lamp specifying device 5 shown in FIG. Instead of the register 19 shown in FIG. 7, registers 191 and 192 are provided separately.

  FIG. 18 is a flowchart showing the flow of the lamp specifying process executed by the lamp specifying device 5.

  Similar to the above embodiment, the lookup table 21 is created in advance and stored in the storage unit 20 before starting the lamp specifying process.

  In addition, the operator places the lamp specifying device 5 at an arbitrary position in the area 1 (in this example, directly below the central lamp 2F) at a work surface height. At that time, the operator adjusts the arrangement direction of the lamp specifying device 5 so that, for example, the light receiving element 101 faces the + X direction in FIG. 11 and the light receiving element 102 faces the + Y direction. Then, the arrangement location and the arrangement direction of the lamp specifying device 5 are input from the input unit 17.

  Referring to FIG. 18, in step SP301, the processing unit 25 sets search conditions. Specifically, the location and orientation of the lamp specifying device 5 are set on the grid shown in FIG. As shown in FIG. 12, in this example, the lamp specifying device 5 (detecting unit 10) is arranged on the intersection P5.

  Next, in step SP302, the processing unit 25 initializes the search exclusion lamp list.

  Next, in step SP303, the processing unit 25 lights all the lamps 2A to 2I with a constant luminance. Thereby, the illumination of the worker who performs work in the area 1 is secured.

  Next, in step SP304, the detection unit 10 detects the illuminance at the place where the lamp specifying device 5 is arranged. The processing unit 25 stores the illuminance value detected by each of the light receiving elements 101 to 104 in the register 191.

  Next, in step SP305, the processing unit 25 sets different frequencies Fa to Fi for the lamps 2A to 2I to be searched.

  Next, in step SP306, the processing unit 25 sets the brightness of all the lamps 2A to 2I between the predetermined upper limit brightness (the highest brightness in this example) and the predetermined lower limit brightness (the lowest brightness in this example). The period is simultaneously changed at frequencies Fa to Fi set to ˜2I.

  Next, in step SP307, the detection unit 10 continuously detects the illuminance at the place where the lamp specifying device 5 is arranged for a predetermined time under a situation where the luminances of all the lamps 2A to 2I are simultaneously changed periodically at the frequencies Fa to Fi. The processing unit 25 stores the illuminance value detected by each of the light receiving elements 101 to 104 in the register 192.

  Next, in step SP308, the processing unit 25 calculates a spectrum by performing frequency analysis on the illuminance data stored in the registers 191 and 192. Specifically, the processing unit 25 calculates the first individual difference values D101p to D104p for the frequencies Fa to Fi based on the illuminance data accumulated in the register 191. Further, based on the illuminance data stored in the register 192, second individual difference values D101q to D104q for each of the frequencies Fa to Fi are calculated. Then, by subtracting the first individual difference values D101p to D104p from the second individual difference values D101q to D104q for each frequency Fa to Fi, the individual difference values D101 to D104 for each frequency Fa to Fi are calculated.

  Next, in step SP309, the processing unit 25 determines between the place where the lamp specifying device 5 is placed and the place where each lamp 2A-2I is placed based on the maximum individual difference value DMAX for each frequency Fa to Fi and the lookup table 21. The horizontal plane distance is estimated. The processing unit 25 creates lamp-distance related information by associating the identification information IDA to IDI of each lamp 2A to 2I with the estimated horizontal plane distance, and stores the lamp-distance related information in the storage unit 20. .

  Next, in step SP310, the processing unit 25 selects any one of the lamps 2A to 2I whose identification information is described in the lamp-distance related information, for which the installation location has not been specified (the following lamps are described below). In the example, the lamp 2A is selected.

  Next, in step SP311, based on the horizontal plane distance of the lamp 2A described in the lamp-distance related information, the processing unit 25 determines whether the horizontal plane distance is within a range in which the installation location of the lamp 2A can be specified. To do. When the horizontal plane distance of the lamp 2A is greater than the predetermined threshold, the processing unit 25 adds the identification information IDA of the lamp 2A to the search exclusion lamp list (step SP314).

  On the other hand, if the horizontal plane distance of the lamp 2A described in the lamp-distance related information is less than the threshold, the processing unit 25 next compares the individual difference values D101 to D104 regarding the frequency Fa in step SP312. By performing, the direction of the installation location of the lamp 2A with respect to the arrangement location of the lamp identification device 5 is estimated.

  Next, in step SP313, the processing unit 25 identifies an intersection corresponding to the lamp 2A among the intersections P1 to P9 on the grid, based on the distance estimation result in step SP309 and the direction estimation result in step SP312.

  Next, in step SP314, the processing unit 25 adds the identification information IDA of the lamp 2A that has been specified to the search exclusion lamp list (specific completion list).

  Next, in step SP315, the processing unit 25 determines whether or not an unselected lamp exists in all the lamps 2 whose identification information is described in the lamp-distance related information. If there is an unselected lamp 2, the identification information is updated, and then the processing after step SP310 is repeated.

  Next, in step SP316, the processing unit 25 determines whether or not the search for all the lamps 2A to 2I has been completed. If there is an unsearched lamp 2, the identification information is updated, and then the processes after step SP303 are repeated. On the other hand, when the search for all the lamps 2A to 2I is completed, the lamp specifying process is ended.

<Summary>
According to the lamp specifying device 5 according to the above-described embodiment, the processing unit 25 causes the control unit 26 to change the luminance of the plurality of search target lamps 2A to 2I at different frequencies Fa to Fi so that the detection unit 10 The illuminance data to be detected is accumulated for a predetermined time, and the illuminance value for each frequency Fa to Fi is calculated by frequency analysis of the illuminance data. Then, each of the plurality of search target lamps 2 </ b> A to 2 </ b> I is specified from among the plurality of lamps 2 based on the illuminance value for each frequency Fa to Fi and the lookup table 21. As a result, the identification information of the lamp 2 and the installation location can be simply and reliably associated with each other without depending on the hand. Further, since it is not necessary to additionally mount a function for specifying the lamp 2 on the side of the many lamps 2, an increase in the introduction cost of the system can be minimized. Furthermore, since the brightness of each lamp 2 is changed at a specific frequency Fa to Fi, it is easy to distinguish it from outside light. Therefore, it is possible to specify the lamp 2 accurately without being affected by outside light. .

  Further, according to the lamp specifying device 5 according to the above-described embodiment, the processing unit 25 simultaneously changes the luminance of the plurality of search target lamps 2A to 2I. Accordingly, since the plurality of lamps 2A to 2I can be specified collectively by a single search process, it is possible to increase the processing speed as compared with the case where the plurality of lamps 2A to 2I are sequentially searched. In addition, since the brightness of the plurality of search target lamps 2A to 2I is changed at different frequencies Fa to Fi, the search target lamps 2A to 2I can be clearly distinguished by frequency analysis. Each of the lamps 2A to 2I can be accurately specified.

  Further, according to the lamp specifying device 5 according to the third modification, the processing unit 25 sequentially changes the luminance of the plurality of search target lamps 2A to 2I. Therefore, since the processing load of the processing unit 25 can be reduced as compared with the case where a plurality of lamps 2A to 2I are searched simultaneously, the plurality of lamps 2A to 2I can be identified even when the processing capacity of the processing unit 25 is low. Can be done. In addition, since the brightness of each lamp 2 is changed at a specific frequency Fa to Fi, it is easy to distinguish it from outside light. Therefore, it is possible to specify the lamp accurately without being affected by outside light.

  Moreover, according to the lamp specifying device 5 according to the above-described embodiment, the detection unit 10 includes the plurality of light receiving elements 101 to 104 whose light receiving directions are limited to different directions as illustrated in FIG. Alternatively, as shown in FIG. 9, the light receiving element 101 whose light receiving direction is limited and the driving unit 53 that drives the light receiving element 101 to change the light receiving direction are included. Therefore, it is possible to estimate not only the distance from the predetermined place where the lamp specifying device 5 is arranged to each lamp 2, but also the direction in which each lamp 2 is installed with respect to the predetermined place. As a result, each lamp 2 can be accurately identified even in a situation where a plurality of lamps 2A to 2I are installed in a matrix.

  Further, according to the lamp specifying device 5 according to the second modified example, each of the detection units 10-1 to 10-4 includes the light receiving elements 101 to 104, and the light receiving elements 101 to 104 are in the area 1. Arranged at multiple locations. Accordingly, it is possible to estimate the distances from the arrangement locations of the light receiving elements 101 to 104 to the lamps 2 respectively. As a result, each lamp 2 can be accurately identified even in a situation where a plurality of lamps 2A to 2I are installed in a matrix.

  Further, according to the lamp specifying device 5 according to the above-described embodiment, the correction unit 27 corrects the lookup table 21 stored in the storage unit 20 based on the result of lamp specification by the processing unit 25. Therefore, even if there is an error in the lookup table 21 prepared in advance, it is possible to accurately specify the lamp 2 thereafter by correcting the lookup table 21 based on the actual measurement result. Become.

  Further, according to the lamp specifying device 5 according to the fourth modified example, the first illuminance data related to the illuminance detected by the detection unit 10 before changing the luminance of the lamp 2 is stored in the register 191 (first register ) And the second illuminance data relating to the illuminance detected by the detection unit 10 after changing the luminance of the lamp 2 is held in the register 192 (second register). Then, the processing unit 25 calculates an illuminance value for each of the frequencies Fa to Fi based on the first illuminance data held by the register 191 and the second illuminance data held by the register 192. Thereby, since the influence of the external light which fluctuates at the same frequency as the frequencies Fa to Fi of the lamp 2 can be eliminated, the illuminance value for each frequency can be calculated easily and accurately.

  Moreover, according to the lamp specifying device 5 according to the above-described embodiment, a plurality of lamps are specified in order by sequentially updating the search target lamps. Thereby, it is possible to specify all of the plurality of lamps 2 installed in the area 1.

  Further, according to the lamp specifying device 5 according to the above-described embodiment, the lamp that has been specified or the lamp that has failed to be specified is excluded from the update target by being added to the search exclusion lamp list. By excluding the lamp that has been specified from the update target, it is possible to avoid a situation in which the specific process is performed again on the lamp that has been specified. Further, by excluding the lamp that has failed to be specified from the update target, it is possible to avoid a situation in which the specifying process is performed again for a lamp that cannot be specified. When there is a lamp that has failed to be specified, the lamp can be specified by changing the arrangement location of the lamp specifying device 5 and redoing the specifying process.

DESCRIPTION OF SYMBOLS 1 Area 2 (2A-2I) Lamp 3 (3A-3I) Lamp control apparatus 4 Main control apparatus 5 Lamp specification apparatus 10,10-1-10-4 Detection part 101-104 Light receiving element 19,191,192 Register 20 Memory | storage Unit 21 Look-up table 25 Processing unit 26 Control unit 27 Correction unit 31 Light-shielding plate 53 Drive unit

Claims (12)

In a lighting system in which a plurality of lamps having a dimming function are installed in a predetermined area, the lamp specifying device is arranged at a predetermined location in the area in order to associate the identification information of each lamp with the installation location. ,
A control unit for controlling the brightness of each lamp by communication;
A detector for detecting illuminance at the predetermined location;
By changing the luminance of the plurality of search target lamps at different frequencies by the control unit, the illuminance data detected by the detection unit is accumulated for a predetermined time, and the illuminance value for each frequency is obtained by frequency analysis of the illuminance data. A processing unit that calculates and identifies each of the plurality of search target lamps from the plurality of lamps based on the illuminance value for each frequency and the correlation information of the illuminance and the distance;
A lamp specifying device.   The lamp specifying device according to claim 1, wherein the processing unit simultaneously changes luminances of the plurality of search target lamps.   The lamp specifying device according to claim 1, wherein the processing unit sequentially changes the luminance of the plurality of search target lamps.   The lamp specifying device according to claim 1, wherein the detection unit includes a plurality of light receiving elements whose light receiving directions are limited to different directions. The detector is
A light receiving element having a limited light receiving direction;
A drive unit that drives the light receiving element to change the light receiving direction;
The lamp identifying device according to any one of claims 1 to 3, further comprising: The detector has a plurality of light receiving elements,
The lamp identifying device according to any one of claims 1 to 3, wherein the plurality of light receiving elements are arranged at a plurality of locations in the area. A storage unit for storing the correlation information;
A correction unit that corrects the correlation information stored in the storage unit based on the result of lamp specification by the processing unit;
The lamp specifying device according to any one of claims 1 to 6, further comprising: A first register for holding first illuminance data relating to the illuminance detected by the detection unit before changing the luminance of the search target lamp;
A second register for holding second illuminance data relating to the illuminance detected by the detection unit after changing the luminance of the search target lamp;
Further comprising
Based on the first illuminance data held by the first register and the second illuminance data held by the second register, the processing unit has an illuminance value for each frequency. The lamp specifying device according to any one of claims 1 to 7, wherein   The lamp specifying device according to claim 1, wherein the processing unit sequentially specifies the plurality of lamps by sequentially updating the plurality of search target lamps.   The lamp specifying device according to claim 9, wherein the processing unit excludes a lamp for which specification has been completed or a lamp for which specification has failed from an update target. In a lighting system in which a plurality of lamps having a dimming function are installed in a predetermined area,
A lamp control device that is connected to each of the plurality of lamps and performs dimming control on the connected lamp; and
A main control device for controlling the lamp control device in order to perform dimming control of the plurality of lamps based on environmental factors of the area;
A lamp specifying device arranged at a predetermined location in the area to associate the identification information of each lamp with the installation location;
With
The lamp specifying device is:
A control unit for controlling the brightness of each lamp by communication;
A detector for detecting illuminance at the predetermined location;
By changing the luminance of the plurality of search target lamps at different frequencies by the control unit, the illuminance data detected by the detection unit is accumulated for a predetermined time, and the illuminance value for each frequency is obtained by frequency analysis of the illuminance data. A processing unit that calculates and identifies each of the plurality of search target lamps from the plurality of lamps based on the illuminance value for each frequency and the correlation information of the illuminance and the distance;
Having a lighting system. In a lighting system in which a plurality of lamps having a dimming function are installed in a predetermined area, a lamp specifying method for associating identification information of each lamp with an installation location,
(A) controlling the brightness of each lamp by communication;
(B) detecting illuminance at a predetermined location in the area;
(C) The illuminance data detected in the step (B) is accumulated for a predetermined time by changing the luminance of the plurality of search target lamps at different frequencies in the step (A), and the illuminance data is subjected to frequency analysis. Calculating the illuminance value for each frequency by the step, and specifying each of the plurality of search target lamps from among the plurality of lamps based on the illuminance value for each frequency and the correlation information of illuminance and distance;
A lamp identifying method comprising:

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