JP2014032830A - Control device, control method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To determine the position of a measuring device, from the illuminance in a predetermined frequency band.SOLUTION: A control device 100 includes an emission control unit 111 for changing the emission intensity for each of a plurality of luminaires 200-230 located at different positions according to such a variation pattern that the main frequency components fall within a predetermined frequency band, when the frequency is decomposed, a measurement value acquisition unit 112 for acquiring the change in illuminance measured by a measuring device for receiving the light irradiated by the plurality of luminaires, a specification unit 113 for associating the change in illuminance thus acquired with any one of the plurality of luminaires 200-230, a generation unit 114 for specifying the frequency component in a predetermined frequency band from the change in illuminance of each luminaire specified by the specification unit 113, and generating illuminance information representing the frequency component in a predetermined frequency band thus specified, and a position estimation unit 115 for determining the position of a measuring device 300 for the plurality of luminaires 200-230, from the magnitude relation of illuminance represented by the illuminance information of each luminaire generated by the generation unit 114.

Description

  The present invention relates to a control device, a control method, and a program.

  In order to set the illuminance of light emitted from an illuminating device arranged indoors to a target illuminance at a desired position, the position of the measuring device that measures the illuminance is obtained, and the illuminating device is determined according to the illuminance at that position. There exists an illumination system of patent document 1 as what adjusts the intensity | strength of the light irradiated from.

  In this lighting system, after changing the intensity of light emitted from each lighting device at random, it is measured when the intensity is changed and the intensity change amount indicating how the intensity changes. A regression coefficient with the amount of change in illuminance is obtained for each amount of change in intensity, and a position where the measuring device exists is obtained based on the obtained regression coefficient. Then, the lighting system adjusts the intensity of light emitted from the lighting device so that the illuminance measured at the obtained position becomes a target value.

  Moreover, there exists a lighting system for visible light communication of patent document 2 as what implement | achieves transmission of various information by carrying out blink control of the light irradiated from an illuminating device.

  In this illumination system for visible light communication, when the external light illuminance detected by the external light sensor (sensor for detecting external light illuminance) provided in the illumination device is equal to or greater than a threshold value, the number of transmissions of various information per unit time is set. increase.

JP 2008-243390 A JP 2007-266795 A

  Here, the illumination system described in Patent Document 1 does not take into consideration any influence on the illuminance caused by external light. For this reason, when reducing the influence of the external light on the illuminance, when the illuminance of the external light becomes equal to or greater than the threshold, it is possible to apply a configuration in which the number of times of changing the light is increased to the illumination system described in Patent Document 1. . However, in this case, the illuminance still includes the influence of external light. For this reason, as a result of obtaining the position of the measuring device from the illuminance including the influence of external light, there is a problem that the obtained position of the measuring device shows low accuracy.

  The same problem occurs when there is disturbance light from other light emitting devices that affects the illuminance other than outside light.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a control device, a control method, and a program for obtaining the position of a measurement device from illuminance in a predetermined frequency band.

  In order to achieve the above object, the light emission control unit of the control device according to the present invention has a main frequency component within a predetermined frequency band when the light emission intensities of a plurality of lighting devices arranged at different positions are frequency-resolved. Change according to the fluctuation pattern. The acquisition unit acquires a change in illuminance measured by a measurement device that receives light emitted from a plurality of illumination devices. The specifying unit associates the change in illuminance acquired by the acquiring unit with any of the plurality of lighting devices. The generation unit specifies a frequency component in a predetermined frequency band from the change in illuminance for each lighting device specified by the specifying unit, and generates illuminance information representing the frequency component in the specified predetermined frequency band. A position estimation part calculates | requires the position of the measuring device with respect to a some illuminating device from the magnitude relationship of the illumination intensity which the illumination intensity information according to illuminating device produced | generated by the production | generation part represents.

  According to the present invention, the position of the measuring device can be obtained from the illuminance in a predetermined frequency band.

It is the figure which showed the connection of the illumination system which concerns on Embodiment 1 of this invention. It is a block diagram of a control apparatus, an illuminating device, and a measuring device. It is a figure which shows the illumination intensity measured immediately under each of an illuminating device in the case of maximum intensity | strength (intensity setting value 100%). It is a figure which shows the content of the information memorize | stored in the irradiation information storage part. It is a figure which shows an irradiation pattern. It is a figure which shows transition of the general illumination intensity in the room by external light. It is a figure which shows the frequency distribution shown when the frequency conversion of the general illumination intensity in the room by external light is carried out. It is a figure which shows the measured value transmitted from the measuring apparatus. (A) is a figure which shows the frequency distribution shown when the illuminance which adapts to the time slot | zone whose elapsed time is 25000 seconds-27999 seconds is frequency-converted, (b) is the elapsed time of 28000 seconds-30999 seconds. It is a figure which shows the frequency distribution shown when the illumination intensity suitable for a time slot | zone is frequency-converted, (c) is shown when the illumination intensity suitable for the time slot | zone whose elapsed time is 31000 seconds-33999 seconds is frequency-converted. It is a figure which shows frequency distribution, (d) is a figure which shows frequency distribution shown when the illuminance which fits the time slot | zone whose elapsed time is 34000 seconds-36999 seconds is frequency-converted. It is a figure which shows the waveform at the time of let the illuminance transmitted from the measuring apparatus pass a high pass filter. It is a flowchart which shows a position estimation process. It is a figure which shows the content of the information memorize | stored in the irradiation information storage part of the control apparatus which concerns on Embodiment 2 of this invention. (A) is a figure which shows the irradiation pattern which discretized the sine wave which makes a reciprocal number of 0.05 Hz in three steps, (b) is a step which makes a sine wave which makes a reciprocal number of 0.025 Hz a cycle. (C) is a diagram showing an irradiation pattern obtained by discretizing a sine wave having a reciprocal of 0.017 Hz in three stages. It is a figure which shows the irradiation pattern which discretized the sine wave which makes the reciprocal number of 01 Hz a period in three steps. It is a figure which shows the measured value transmitted from the measuring apparatus of Embodiment 2. FIG. (A) is a figure which shows the illuminance which adapts main frequency 0.05Hz, (b) is a figure which shows the illuminance which adapts main frequency 0.025Hz, (c) is main frequency 0.017Hz. (D) is a figure which shows the illuminance which adapts to main frequency 0.01Hz.

(Embodiment 1)
Hereinafter, the illumination system 10 according to Embodiment 1 of the present invention will be described with reference to FIGS. As shown in FIG. 1, the illumination system 10 includes a control device 100, first to fourth illumination devices 200 to 230, and a measurement device 300.

  The illumination system 10 obtains (estimates) the position of the measurement device 300 based on the illuminance measured by the measurement device 300. This illumination system 10 is a system that adjusts the intensity (light emission intensity) of visible light emitted from each of the illumination devices 200 to 230 so that, for example, the illuminance measured by the measurement device 300 at the obtained position becomes the target illuminance. Can be widely applied to.

  The control apparatus 100 is connected to each illuminating device 200-230 which irradiates visible light via a cable. The control device 100 illuminates the illumination device according to the variation pattern information indicating the variation pattern in which the main frequency component is within a predetermined frequency band when the emission intensity of each of the illumination devices 200 to 230 is frequency-resolved (frequency analysis; Fourier series expansion). The emission intensity of each of 200 to 230 is changed.

  Moreover, the control apparatus 100 changes the light emission intensity | strength of each illuminating device 200-230 sequentially by a time division (it changes in a separate time slot | zone). At this time, the measurement apparatus 300 measures the illuminance of visible light, and transmits the measurement value to the control apparatus 100 in association with the measurement time.

  When the control device 100 receives the measurement value of the illuminance of the light emitted from each of the lighting devices 200 to 230 from the measurement device 300, each time zone is determined from the measurement time associated with the received measurement value and the time zone. Measured value (time change of measured value) that conforms to Then, the control device 100 associates the specified measurement value with the time zone. Thereafter, the control device 100 frequency-decomposes the measured values (variations thereof) for each specified time zone by, for example, fast Fourier transform or the like, and performs a predetermined frequency band (0.005 Hz to 0 in this embodiment). .02 Hz) frequency component is specified, and illuminance information indicating the size (amplitude) of the specified frequency component is generated for each time zone. The control device 100 associates the generated illuminance information with a lighting device name (ID) indicating a lighting device that has irradiated visible light in each time zone. And the control apparatus 100 estimates the position of the measuring device 300 with respect to an illuminating device from the magnitude relationship of the illuminance (amplitude) which the illuminance information matched with the illuminating device name represents.

  As described above, the control device 100 specifies the illuminance of visible light included in the predetermined frequency band for each time zone from the measurement value measured by the measurement device 300, and the position of the measurement device 300 is determined from the specified illuminance. Ask for. In other words, the control device 100 determines the position of the measurement device 300 from the illuminance obtained by removing the influence of ambient light indicating a frequency outside the predetermined frequency band (for example, fluctuations in illuminance due to ambient light or movement of a person inside the room). Ask. Therefore, the control device 100 shows a higher accuracy of the obtained position of the measuring device 300 than the device that obtains the position of the measuring device 300 from the illuminance that does not remove the influence of ambient light.

  The first to fourth lighting devices 200 to 230 are arranged at different positions, for example, indoors where the window 400 is provided. Each illuminating device 200-230 is the same structure. Each of the lighting devices 200 to 230 emits visible light while changing the light emission intensity under the control of the control device 100 (according to the variation pattern information). When each of the lighting devices 200 to 230 has the maximum intensity (when the intensity setting value is 100%), the light emission intensity such that the illuminance measured immediately below each of the lighting devices 200 to 230 becomes the illuminance shown in FIG. Then, irradiate with visible light.

  That is, when the intensity setting value is 100%, the first lighting device 200 and the third lighting device 220 irradiate visible light with a light emission intensity such that the illuminance measured immediately below is 250 lux. When the intensity setting value is 100%, the second illumination device 210 emits visible light with an emission intensity such that the illuminance measured immediately below is 400 lux, and the fourth illumination device 230 measures directly below. Visible light is irradiated with a light emission intensity such that the illuminance is 100 lux.

  In addition, if intensity setting value becomes small, each illuminating devices 200-230 will weaken emitted light intensity. Therefore, when the intensity setting value is 50%, the first lighting device 200 and the third lighting device 220 irradiate visible light with a light emission intensity such that the illuminance measured immediately below becomes 125 lux. When the intensity setting value is 50%, the second illumination device 210 emits visible light with an emission intensity such that the illuminance measured immediately below is 200 lux, and the fourth illumination device 230 measures directly below. Visible light is irradiated with a light emission intensity such that the illuminance is 50 lux. And when an intensity setting value is 0%, each illuminating device 200-230 does not irradiate visible light.

  The measuring device 300 is disposed at a position for receiving the light emitted by each of the lighting devices 200 to 230. The measuring device 300 measures the illuminance of visible light. When the measuring device 300 measures the illuminance of visible light during a predetermined period, specifically, the period until the change of the emission intensity of visible light by all the lighting devices 200 to 230 is completed, It transmits to the control apparatus 100 by wireless communication.

  The block diagram of the illumination system 10 provided with the control apparatus 100 mentioned above, each illuminating device 200-230, and the measuring device 300 is as showing in FIG.

  The control device 100 is composed of, for example, a personal computer. The control device 100 includes a control unit 110, a storage unit 120, a wired communication unit 130, an input unit 140, a display unit 150, and a wireless communication unit 160.

  The control unit 110 controls the control device 100. The control unit 110 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory) (not shown).

  The CPU executes a program stored in the ROM (for example, a program that realizes processing shown in FIG. 11 described later).

  In addition, when the CPU executes a program stored in the ROM, the control unit 110 includes a light emission control unit 111, a measurement value acquisition unit 112, a specification unit 113, a generation unit 114, a position estimation unit 115, Realize the function.

  The light emission control unit 111 transmits a control command from the wired communication unit 130 to each of the lighting devices 200 to 230. With this control command, the light emission control unit 111 changes the light emission intensity of each of the lighting devices 200 to 230 so that the main frequency component when the light emission intensity of the lighting devices 200 to 230 is frequency-resolved is within a predetermined frequency band. Let

  As shown in FIG. 4, the variation pattern information includes an irradiation pattern in which the light emission intensity of the illumination device is defined by an intensity setting value, and a time zone in which a start time and an end time of a change in the light emission intensity due to the irradiation pattern are defined. Composed.

  Moreover, as shown in FIG. 4, the illumination device name which shows the illumination device which irradiates visible light is matched with the fluctuation pattern information by the time slot | zone.

  Therefore, the light emission control unit 111 controls the first lighting device 200 so that the light emission intensity starts to change according to the pattern 1 when the elapsed time from 6 am becomes 25000 seconds, for example, and the elapsed time is 27999. Control is made to end the change in the light emission intensity when the second is reached. For example, the light emission control unit 111 controls the fourth lighting device 200 so that the light emission intensity starts to change according to the pattern 1 when the elapsed time from 6 am becomes 34000 seconds, for example. Is controlled to end the change in the light emission intensity when 36999 seconds is reached.

  As described above, the light emission control unit 111 controls the light emission intensity of each of the lighting devices 200 to 230 according to the pattern 1 so that the change of the light emission intensity of each of the lighting devices 200 to 230 is the same, and the lighting device 200. Control is performed to sequentially change the emission intensities of .about.230 in a time-sharing manner.

  As shown in FIG. 5, the pattern 1 is associated with the intensity setting value and the time for one cycle of the emission intensity. In Pattern 1, the intensity setting value of the lighting device is set to 50% immediately after the start of the change of the emission intensity, and the intensity setting value of the illumination apparatus is set to 100% about 10 seconds after the start of the change of the emission intensity. After 42 seconds, the intensity setting value of the lighting device is set to 50%. In addition, pattern 1 is a control in which the intensity setting value of the lighting device is set to zero about 60 seconds after the start of the change in the emission intensity, and the intensity setting value of the lighting apparatus is set to 50% after about 91 seconds from the start of the change in the emission intensity. Is realized by the light emission control unit 111.

  According to this pattern 1, the light emission control unit 111 controls the light emission intensity of each of the lighting devices 200 to 230 by repeatedly changing the intensity setting value of the lighting device during each time period.

  Here, the pattern 1 is a square wave obtained by discretizing a sine wave having a reciprocal of 0.01 Hz included in a predetermined frequency band, that is, a frequency band of 0.005 Hz to 0.02 Hz in three stages. The intensity setting value is set so that the light emission intensity of each of the lighting devices 200 to 230 changes. Thus, when the illuminance is frequency-converted (frequency decomposition), the illuminance shows a frequency component in the vicinity of 0.01 Hz with 0.01 Hz as the main frequency component. Here, the frequency component of the illuminance shows a frequency distribution in the vicinity of 0.01 Hz because, for example, the measurement device 300 measures the influence of external light incident from the window 400 (see FIG. 1). This is because it is removed from the value (illuminance).

  Specific explanation is shown below. First, transition of general illuminance in the room due to external light incident from the window 400 (see FIG. 1) (transition in a state where the lighting devices 200 to 230 are all turned off) is from 6 am to 8 pm FIG. 6 shows a transition as shown in FIG. Moreover, the frequency distribution of the illuminance (amplitude) shown when the illuminance due to the external light shown in FIG. 6 is subjected to frequency conversion (frequency decomposition) by fast Fourier transform over the entire time shows a distribution as shown in FIG. .

  That is, as shown in FIG. 6, the transition of the general illuminance in the room due to external light indicates the illuminance that increases as time elapses, and reaches a maximum value around 200 lux. Thereafter, the general transition of the illuminance in the room due to the external light indicates the illuminance that decreases as time elapses. At this time, the main frequency component of the illuminance due to external light is 0.003 Hz or less as shown in FIG.

  Here, the light emission control unit 111 includes a plurality of illuminations so that the lower limit frequency of the predetermined frequency band is higher than the frequency (0.003 Hz) indicated by the main frequency component when the illuminance by external light is frequency-resolved. The emission intensity of each device is changed according to pattern 1.

  Thus, if the light emission intensity of each illumination device 200-230 is controlled so that the main frequency component when the light emission intensity of each illumination device 200-230 is frequency-resolved is about 0.01 Hz, the illuminance due to external light Since the main frequency component when the frequency decomposition is 0.003 Hz or less, each main frequency component can be made separate.

  As a result, the control apparatus 100 specifies the illuminance included in the predetermined frequency band (0.005 Hz to 0.02 Hz) from the measurement value measured by the measurement apparatus 300, and as a result, is measured by the measurement apparatus 300. From the measured value, it is possible to remove the influence of outside light indicating a frequency outside the predetermined frequency band. Therefore, the pattern 1 defines the light emission intensity so that the frequency component of illuminance shows a frequency distribution near 0.01 Hz.

  The measurement value acquisition unit 112 transmits a transmission command to the measurement device 300 via the wireless communication unit 160. The measurement apparatus 300 that has received this transmission command transmits the measurement value of the illuminance of visible light (change in illuminance measured by the measurement apparatus 300) to the control apparatus 100. Thus, by transmitting the transmission command, the measurement value acquisition unit 112 acquires the measurement value from the measurement device 300 via the wireless communication unit 160.

  For example, as shown in FIG. 8, the measurement value transmitted from the measurement device 300 is a change in which the illuminance by external light (see FIG. 5) and the illuminance of visible light emitted from each of the illumination devices 200 to 230 are superimposed. Indicates.

  Here, it is generally known that the measurement value of the illuminance measured by the measurement device 300 is the sum of the illuminance by each light when there is an influence of external light and the lighting device is turned on. Yes. For example, the illuminance of external light is 150 lux, the illuminance of visible light emitted from the illumination device 200 is 250 lux (when the intensity setting value is 100%), and the illuminance of visible light emitted from the illumination device 210 Is 200 lux (when the intensity setting value is 50%), and the intensity setting values of the illumination device 220 and the illumination device 230 are zero, the measured illuminance value measured by the measurement device 300 is 600 lux (150 lux + 250 Lux + 200 Lux).

  Therefore, the measurement value transmitted from the measuring device 300 shows a transition in which the illuminance of visible light emitted from each of the illumination devices 200 to 230 in each time zone is superimposed on the illuminance by external light (see FIG. 5). is there.

  Accordingly, the measurement value transmitted from the measuring device 300 indicates the illuminance only from outside light when the elapsed time from 6:00 AM is 0 second to 24999 seconds, for example, and the elapsed time from 25000 seconds to 27999 seconds is The illuminance of the sum of the illuminance and the illuminance of visible light irradiated by the first lighting device 200 is shown.

  The measurement value transmitted from the measuring device 300 indicates the illuminance of the sum of the illuminance of outside light and the illuminance of visible light irradiated by the second illumination device 210 until the elapsed time is 28000 seconds to 30999 seconds. The time from 31000 seconds to 33999 seconds indicates the illuminance of the sum of the illuminance of external light and the illuminance of visible light irradiated by the third lighting device 220, and the illuminance of external light from 34000 seconds to 36999 seconds. The illuminance is the sum of the illuminance of visible light emitted by the fourth illumination device 230. The measurement value acquisition unit 112 stores the received measurement value in the measurement value storage unit 122.

  The specifying unit 113 specifies a measurement value suitable for each time zone from the measurement value (change in illuminance, see FIG. 8) stored in the measurement value storage unit 122 for each time zone. And the specific | specification part 113 matches the specified measured value and each time slot | zone.

  Specifically, the specifying unit 113 uses the measured value stored in the measured value storage unit 122 to measure the elapsed time from 25000 seconds to 27999 seconds and the elapsed time from 28000 seconds to 30999 seconds. Measured values that fit the time zone, measured values that fit the time zone of the elapsed time of 31000 seconds to 33999 seconds, and measured values that fit the time zone of the elapsed time of 34000 seconds to 36999 seconds, and each identified measured value Is associated with each time zone.

  Here, since each time slot | zone and each illuminating device are matched (refer FIG. 4), it can be paraphrased that the specific | specification part 113 matches each specified measured value with each illuminating device.

  The generation unit 114 frequency-decomposes the measurement value (change in illuminance) for each time zone specified by the specification unit 113, and generates a predetermined frequency band (0.005 Hz to 0.02 Hz in this embodiment). The frequency component is specified, and illuminance information indicating the size (amplitude) of the specified frequency component is generated for each time zone. And the production | generation part 114 matches the produced | generated illumination intensity information with the illuminating device name which shows the illuminating device which changed light emission intensity corresponding to the time slot | zone.

  Specifically, the generation unit 114 performs fast Fourier transform (frequency decomposition) on a measurement value that is specified by the specifying unit 113 and that is suitable for a time zone having an elapsed time of 25000 seconds to 27999 seconds in a predetermined frequency band. 9), a waveform (illuminance information) indicating a peak value as shown in FIG. 9A is generated in association with the device name representing the illumination device 200. Similarly, the generation unit 114 performs fast Fourier transform on a measurement value that is specified by the specification unit 113 and that is suitable for the time zone of the elapsed time of 28000 seconds to 30999 seconds, in a predetermined frequency band, and FIG. A waveform (illuminance information) indicating a peak value as shown in FIG. 6 is generated in association with the device name representing the illumination device 210.

  Further, the generation unit 114 performs fast Fourier transform on the measurement value specified by the specification unit 113 and adapted to the time zone of the elapsed time of 31000 seconds to 33999 seconds in a predetermined frequency band, as shown in FIG. A waveform (illuminance information) indicating a peak value as shown is generated in association with the device name representing the illumination device 220. Similarly, the generation unit 114 performs fast Fourier transform on the measurement value specified by the specification unit 113 and conforming to the time zone of the elapsed time of 34000 seconds to 36999 seconds in a predetermined frequency band, and FIG. A waveform (illuminance information) indicating a peak value as shown in FIG. 6 is generated in association with the device name representing the illumination device 230.

  Here, in addition to the above, the generation unit 114 may generate illuminance information as follows.

  In other words, the generation unit 114 has a measurement value that is specified by the specifying unit 113 and that is suitable for a time zone of 25000 seconds to 27999 seconds, a measurement value that is suitable for a time zone of 28000 seconds to 30999 seconds, A measurement value suitable for a time zone of 31000 seconds to 33999 seconds and a measurement value suitable for a time zone of 34000 seconds to 36999 seconds are passed through a high-pass filter having a cutoff frequency of, for example, 0.008 Hz. That is, the measured value (see FIG. 8) transmitted from the measuring device 300 is passed through a high-pass filter to generate a waveform as shown in FIG. 10 in a predetermined frequency band from which the illuminance due to external light (see FIG. 5) is removed. To do.

  And the production | generation part 114 uses the average value (illuminance information) of the amplitude of the waveform which fits the time slot | zone whose elapsed time is 25000 seconds-27999 seconds among the waveforms (refer FIG. 10) in a predetermined frequency band. It is generated in association with the device name representing. Further, the generation unit 114 sets the average value (illuminance information) of the amplitude of the waveform suitable for the time zone of 28000 seconds to 30999 seconds among the waveforms in the predetermined frequency band as the device name representing the lighting device 210. Generate in association. Further, the generation unit 114 sets the average value (illuminance information) of the amplitude of the waveform suitable for the time zone of 31000 seconds to 33999 seconds among the waveforms in the predetermined frequency band as the device name representing the lighting device 220. Generate in association. Further, the generation unit 114 sets the average value (illuminance information) of the amplitude of the waveform suitable for the time period of 34000 seconds to 36999 seconds among the waveforms in the predetermined frequency band as the device name representing the illumination device 230. Generate in association.

  As described above, the generation unit 114 can generate the illuminance information also by the processing as described above.

  The position estimation unit 115 obtains (estimates) the position of the measurement device 300 with respect to the illumination device from the magnitude relationship based on the peak value (amplitude) of the waveform associated with the illumination device name representing each of the illumination devices 200 to 230. .

  In the present embodiment, the intensity (visible light intensity) of visible light irradiated by each of the lighting devices 200 to 230 is the same, which is not necessary. However, when the light emission intensity is different, the position estimating unit 115 The correction value is multiplied by the peak value of the waveform associated with the illumination device name.

  This correction value is a value that suppresses the difference in the intensity of visible light emitted by each of the lighting devices 200 to 230. For example, when the maximum light emission intensity (when the intensity setting value is 100%) is different between the illumination device 210 and the illumination device 220, the correction value is the magnification. Further, for example, when the illumination device 210 and the illumination device 220 have the same maximum light emission intensity, but the amplitudes of the irradiation patterns (see FIG. 5) are different, the correction value is the magnification.

  For example, when the illumination device 210 has a maximum light emission intensity 1.5 times that of the illumination device 220, the position estimation unit 115 multiplies the peak value of the waveform associated with the device name representing the illumination device 220 by 1.5. Thus, the peak value is corrected. For example, when the irradiation pattern of the illumination device 220 has an amplitude 0.5 times that of the illumination device 210 (the intensity setting value varies from 25% to 75% around the intensity setting value 50%), the position estimation is performed. The unit 115 corrects the peak value by multiplying the peak value of the waveform associated with the device name representing the illumination device 220 by 2.0.

  As a result, the magnitude relationship of the corrected peak value (if correction is unnecessary, not the corrected peak value, but simply the peak value) is, for example, after correction associated with the device name representing the illumination device 210 The corrected peak value associated with the device name representing the illumination device 200 ≈ the corrected peak value associated with the device name representing the illumination device 220> associated with the device name representing the illumination device 230 When the relationship between the corrected peak values is shown, the position estimation unit 115 estimates the position of the measurement apparatus 300 from the magnitude relationship based on the peak values as follows. In other words, the position estimation unit 115 is such that the measurement device 300 is located in the vicinity of the illumination device 210, and the illuminance of visible light emitted from the illumination device 200 and the illuminance of visible light emitted from the illumination device 220 are the same. Estimated to be located at a certain place. Then, the position estimation unit 115 displays the estimated position of the measurement device 300 on the display unit 150.

  The storage unit 120 is composed of, for example, a flash memory. The storage unit 120 includes an irradiation information storage unit 121 and a measurement value storage unit 122.

  The irradiation information storage unit 121 uses the information shown in FIG. 4, specifically, the main frequency component when the light emission intensity of each of the lighting devices 200 to 230 arranged at different positions is frequency-resolved in a predetermined frequency band. The variation pattern information for controlling the emission intensity of each of the lighting devices 200 to 230 is stored so as to be inside. Further, the irradiation information storage unit 121 stores a time zone in which the lighting devices 200 to 230 emit visible light according to the variation pattern information and a name of the lighting device that represents the lighting device that changes the light emission intensity in association with the variation pattern information. To do.

  The measurement value storage unit 122 illustrated in FIG. 1 stores the measurement values acquired from the measurement device 300.

  The wired communication unit 130 is a communication interface. The wired communication unit 130 is connected to each wired communication unit 250 of each lighting device 200 to 230 via a cable. The wired communication unit 130 transmits a control command to the wired communication units 250 of the lighting devices 200 to 230.

  The input unit 140 is, for example, a keyboard. The input unit 140 is used, for example, for inputting variation pattern information stored in the irradiation information storage unit 121 and a lighting device name.

  The display unit 150 is, for example, a liquid crystal display. The display unit 150 displays, for example, the estimated position of the measurement device 300.

  The wireless communication unit 160 is a wireless communication interface. The wireless communication unit 160 transmits a control command and a transmission command to the wireless communication unit 330 of the measurement device 300 by wireless communication. In addition, the wireless communication unit 160 receives the measurement value transmitted from the measurement device 300 in response to the transmission command.

  The illumination devices 200 to 230 are configured such that the emission intensity of visible light to be irradiated can be adjusted. Each of the lighting devices 200 to 230 includes a control unit 240, a wired communication unit 250, and a light source unit 260.

  The control unit 240 controls the lighting device. The control unit 240 includes a CPU, a ROM, and a RAM (not shown).

  The CPU executes a program stored in the ROM, and according to a control command (command indicating an intensity setting value) transmitted from the control device 100, in other words, according to variation pattern information stored in the irradiation information storage unit 121. The emission intensity of visible light emitted from the light source unit 260 is changed by PWM (Pulse Width Modulation) modulation for a period specified in the time zone. Since the intensity setting value is configured with a value in increments of 5%, the CPU changes the intensity of visible light emitted from the light source unit 260 according to the intensity setting value in increments of 5% specified by the control command. Let

  The wired communication unit 250 is a communication interface. The wired communication unit 250 receives a control command transmitted from the wired communication unit 130 of the control device 100.

  The light source unit 260 is, for example, a fluorescent lamp or an LED (Light Emitting Diode) light.

  The measuring device 300 is composed of a wireless device, for example. The measurement apparatus 300 includes a control unit 310, an illuminance sensor unit 320, and a wireless communication unit 330.

  The control unit 310 controls the measurement device 300. The control unit 310 includes a CPU, a ROM, and a RAM (not shown).

  The CPU starts measuring the illuminance of visible light when the wireless communication unit 330 receives a control command from the control device 100 by executing a program stored in the ROM. Further, the CPU completes the measurement of the illuminance when a predetermined period has elapsed since the start of the measurement of the illuminance, that is, when a period until the change of the light emission intensity by all the lighting devices 200 to 230 has elapsed.

  The illuminance sensor unit 320 is a photoresistor or a photodiode. The illuminance sensor unit 320 measures the illuminance of visible light.

  The wireless communication unit 330 is a wireless communication interface. The wireless communication unit 330 receives the control command and the transmission command transmitted from the wireless communication unit 160 of the control device 100. In addition, the wireless communication unit 330 transmits the measurement value to the wireless communication unit 160 of the control device 100 in response to the received transmission command.

  When the execution of position estimation of the measurement device 300 is instructed by the user via the input unit 140 in a state where the power of the measurement device 300, the control device 100, and each of the lighting devices 200 to 230 is turned on, The control device 100 starts the position estimation process shown in FIG.

  In the position estimation process, first, the control unit 110 (light emission control unit 111) transmits a control command to each of the lighting devices 200 to 230 and the measurement device 300 (step S1). When receiving this control command, each of the lighting devices 200 to 230 changes the intensity of visible light emitted from the light source unit 260 according to the intensity setting value indicated by the control command, in other words, according to the variation pattern information. Further, when receiving the control command, the measuring apparatus 300 starts measuring the illuminance of visible light.

  After the execution of step S1, when the predetermined period elapses, specifically, when the period until the change of the emission intensity by all of the lighting devices 200 to 230 elapses, the control unit 110 (measurement value acquisition unit 112). Then, a transmission command is transmitted to the measuring apparatus 300. Then, the control unit 110 (measurement value acquisition unit 112) receives the measurement value transmitted from the measurement device 300 in response to the transmission command, and stores the received measurement value (see FIG. 8) in the measurement value storage unit 122. Store (step S2).

  After execution of step S2, control unit 110 (identification unit 113) identifies, for each time zone, measurement values that match each time zone from the measurement values stored in measurement value storage unit 122 (see FIG. 8). Then, the identified measurement value is associated with each time zone (step S3).

  Specifically, the control unit 110 (specifying unit 113) determines that the measured value and elapsed time conforming to the time period of 25000 seconds to 27999 seconds from the measurement value stored in the measurement value storage unit 122 in step S3. Measured value suitable for a time zone of 28000 seconds to 30999 seconds, Measured value suitable for a time zone of elapsed time 31000 seconds to 33999 seconds, and Measured value adapted to a time zone of elapsed time 34,000 seconds to 36999 seconds And the identified measurement values are associated with each time zone.

  After execution of step S3, control unit 110 (generation unit 114) executes step S4. That is, the control unit 110 (generation unit 114) frequency-decomposes the measurement value (measurement value for each lighting device) for each time zone specified by the specification unit 113 in step S3, and performs a predetermined frequency band (this embodiment). In this form, a frequency component of 0.005 Hz to 0.02 Hz is specified, and illuminance information indicating the magnitude (amplitude) of the specified frequency component is generated for each time zone. Then, the control unit 110 (generating unit 114) associates the generated illuminance information with the name of the illuminating device that indicates the illuminating device whose emission intensity has been changed corresponding to the time zone (step S4).

  Specifically, the control unit 110 (the generation unit 114) performs fast Fourier transform on the measurement value that is specified by the specifying unit 113 in step S4, for example, that fits the time period of 25000 seconds to 27999 seconds. Then, a waveform indicating the peak value (see FIG. 9A) is generated in association with the device name representing the illumination device 200. Similarly, the control unit 110 (generation unit 114) performs fast Fourier transform on the measurement value that is specified by the specifying unit 113, for example, suitable for a time period of 34000 seconds to 36999 seconds, and obtains a peak value. The waveform shown (see FIG. 9D) is generated in association with the device name representing the illumination device 230.

  After execution of step S4, the control unit 110 (position estimation unit 115) determines the magnitude of the illumination device based on the peak value (amplitude) of the waveform associated with the illumination device name representing each of the illumination devices 200 to 230. The position of the measuring device 300 is obtained (step S5).

  Specifically, control unit 110 (position estimation unit 115) first multiplies a correction value to the peak value of the waveform associated with each lighting device name in order to obtain a magnitude relationship based on the peak value.

  And the control part 110 (position estimation part 115) estimates the position of the measuring apparatus 300 from the magnitude relationship of the corrected peak value, ie, the magnitude relationship based on a peak value. Then, the control unit 110 (position estimation unit 115) displays the estimated position of the measurement apparatus 300 on the display unit 150.

  After execution of step S5, the control unit 110 ends this position estimation process.

  As described above, the control device 100 according to the first embodiment frequency-decomposes the measured value (variation thereof) for each specified time zone to obtain a predetermined frequency band (0.005 Hz to 0 in this embodiment). .02 Hz) frequency component is specified, and illuminance information indicating the size (amplitude) of the specified frequency component is generated for each time zone. And the control apparatus 100 calculates | requires the position of the measuring apparatus 300 with respect to an illuminating device from the magnitude relationship based on the illumination intensity (amplitude) shown by illumination intensity information. That is, the control device 100 determines the position of the measurement device 300 based on the illuminance obtained by removing the influence of disturbance light indicating a frequency outside the predetermined frequency band (for example, fluctuation of illuminance due to ambient light or movement of a person in the room). Ask. Therefore, the control device 100 shows a higher accuracy of the obtained position of the measuring device 300 than the device that obtains the position of the measuring device 300 from the illuminance that does not remove the influence of ambient light.

(Embodiment 2)
Next, a control device 100 according to Embodiment 2 of the present invention will be described with reference to FIGS. The control device 100 according to the second embodiment is obtained by changing the content of the variation pattern information stored in the irradiation information storage unit 121 with respect to the control device 100 according to the first embodiment. Therefore, for the control device 100 according to the second embodiment, the same number is assigned to the same configuration and the same process as the control device 100 of the first embodiment.

  As shown in FIG. 12, the variation pattern information stored in the irradiation information storage unit 121 of the control device 100 according to the second embodiment is an irradiation pattern (pattern 11 to pattern) in which the emission intensity of the lighting device is defined by the intensity setting value. 14) and the main frequency of the frequency components of the emission intensity of visible light.

  The variation pattern information is associated with an illumination device name indicating an illumination device that emits visible light.

  Therefore, the light emission control unit 111 controls the first lighting device 200 so that the light emission intensity changes according to the intensity setting value indicated by the pattern 11, and the second light emission intensity changes according to the intensity setting value indicated by the pattern 12. The lighting device 210 is controlled. Further, the light emission control unit 111 controls the third lighting device 220 so that the light emission intensity changes according to the intensity setting value indicated by the pattern 13, and the fourth light emission intensity changes according to the intensity setting value indicated by the pattern 14. The lighting device 230 is controlled.

  Note that, unlike the control device 100 of the first embodiment, the light emission control unit 111 changes all the light emission intensities of the lighting devices 200 to 230 within the same period. Specifically, for example, the light emission control unit 111 changes the light emission intensity of each of the lighting devices 200 to 230, for example, between 25000 seconds and 27999 seconds, for example, the elapsed time from 6 am.

  In patterns 11 to 14, as shown in FIGS. 13A to 13D, intensity setting values and times are associated with each other.

  A pattern 11 shown in FIG. 13A is a three-stage discretization of a sine wave having a period of the reciprocal of 0.05 Hz included in a predetermined frequency band (in this embodiment, 0.005 Hz to 0.06 Hz). The intensity setting value is defined such that the emission intensity of the first lighting device 200 changes in a square wave shape. Thereby, when the illuminance changed according to the pattern 11 is frequency-converted (frequency decomposition), the illuminance shows a frequency component near 0.05 Hz with 0.05 Hz as a main frequency component.

  In the pattern 12 shown in FIG. 13B, the emission intensity of the second illumination device 210 is a square wave obtained by discretizing a sine wave having a reciprocal of 0.025 Hz included in a predetermined frequency band in three stages. Intensity setting values are specified to change. Thereby, when the illuminance changed according to the pattern 12 is frequency-converted, the illuminance shows a frequency component near 0.025 Hz with 0.025 Hz as a main frequency component.

  In the pattern 13 shown in FIG. 13C, the emission intensity of the third lighting device 220 is a square wave obtained by discretizing a sine wave having a reciprocal of 0.017 Hz included in a predetermined frequency band in three stages. Intensity setting values are specified to change. Thereby, when the illuminance changed according to the pattern 13 is frequency-converted, the illuminance shows a frequency component near 0.017 Hz with 0.017 Hz as a main frequency component.

  In the pattern 14 shown in FIG. 13D, the emission intensity of the fourth lighting device 230 is a square wave obtained by discretizing a sine wave having a reciprocal of 0.01 Hz included in a predetermined frequency band in three stages. Intensity setting values are specified to change. Thus, when the illuminance changed according to the pattern 14 is frequency-converted, the illuminance shows a frequency component near 0.01 Hz with 0.01 Hz as a main frequency component.

  According to the patterns 11 to 14, the light emission control unit 111 repeatedly changes the intensity setting value of the lighting device within a predetermined period (for example, the elapsed time from 6:00 am to 25000 seconds to 27999 seconds). The illuminance of each of the lighting devices 200 to 230 is controlled.

  Therefore, the light emission control part 111 changes each light emission intensity of the illuminating devices 200-230 so that each of main frequency components when the light emission intensity | strength of each illuminating device 200-230 frequency-decomposes shows a different frequency.

  When the emission intensity of each of the lighting devices 200 to 230 is changed according to the patterns 11 to 14 described above, the measurement values measured by the measurement device 300 and transmitted from the measurement device 300 are, for example, as shown in FIG. The change by which the illumination intensity (refer FIG. 5) by external light and the illumination intensity of the visible light irradiated from each illuminating device 200-230 were superimposed is shown.

  FIG. 14 shows a case where the light emission intensity of each of the lighting devices 200 to 230 is changed from an elapsed time of 25000 seconds to 27999 seconds.

  Therefore, the measurement value transmitted from the measuring device 300 is the sum of the illuminance of each visible light and the illuminance of external light emitted from each of the lighting devices 200 to 230 for an elapsed time of 25000 seconds to 27999 seconds. Indicates illuminance. Note that the measurement value transmitted from the measurement device 300 is stored in the measurement value storage unit 122.

  From the measurement value (change in illuminance, see FIG. 14) stored in the measurement value storage unit 122, the specifying unit 113 specifies a measurement value (change in illuminance) that matches each main frequency for each main frequency. And the specific | specification part 113 matches the specified measured value and each main frequency.

  Specifically, the specifying unit 113 associates the specified measurement value with each main frequency as follows. That is, the specifying unit 113 passes the measurement value stored in the measurement value storage unit 122 through a BPF (Band Pass Filter) having a center frequency of 0.05 Hz, and determines the main frequency 0 from the measurement value stored in the measurement value storage unit 122. A measurement value suitable for .05 Hz is identified and associated with a main frequency of 0.05 Hz.

  Similarly, the specifying unit 113 passes the measurement value stored in the measurement value storage unit 122 through a BPF having a center frequency of 0.025 Hz, and conforms to the main frequency of 0.025 Hz from the measurement value stored in the measurement value storage unit 122. The measurement value to be identified is specified and associated with the main frequency of 0.025 Hz.

  Further, the specifying unit 113 passes the measurement value stored in the measurement value storage unit 122 through the BPF having the center frequency of 0.017 Hz, and conforms to the main frequency of 0.017 Hz from the measurement value stored in the measurement value storage unit 122. A measurement value is identified and associated with a main frequency of 0.017 Hz.

  Furthermore, the specifying unit 113 passes the measurement value stored in the measurement value storage unit 122 through a BPF having a center frequency of 0.01 Hz, and conforms to the main frequency of 0.01 Hz from the measurement value stored in the measurement value storage unit 122. A measured value is identified and associated with a main frequency of 0.01 Hz.

  As described above, the measurement value that is specified by the specifying unit 113 and conforms to the main frequency of 0.05 Hz has an average amplitude of about 18 lux, as shown in FIG. In addition, the measurement value that is specified by the specifying unit 113 and conforms to the main frequency of 0.025 Hz has an average amplitude of about 27 lux, as shown in FIG. In addition, the measurement value that is specified by the specifying unit 113 and conforms to the main frequency of 0.017 Hz has an average amplitude of about 22 lux, as shown in FIG. Then, the measurement value that is specified by the specifying unit 113 and conforms to the main frequency of 0.01 Hz shows an average amplitude of about 14 lux, as shown in FIG.

  The generation unit 114 frequency-decomposes the measurement value (change in illuminance) for each main frequency specified by the specification unit 113, and generates a predetermined frequency band (0.005 Hz to 0.06 Hz in the present embodiment). The frequency component is specified, and illuminance information indicating the size (amplitude) of the specified frequency component is generated for each main frequency. And the production | generation part 114 matches the produced | generated illumination intensity information with the illuminating device name which shows the illuminating device which changed light emission intensity corresponding to the main frequency.

  Specifically, the generation unit 114 obtains an average value of amplitude from the measurement value that is specified by the specification unit 113 and conforms to the main frequency of 0.05 Hz, and calculates the average value of the obtained amplitude (about 18 lux). Corresponding to a device name representing the lighting device 200. Similarly, the generation unit 114 obtains an average amplitude value from the measurement value that is specified by the specification unit 113 and conforms to the main frequency of 0.025 Hz, and calculates the obtained average amplitude value (about 27 lux) as the lighting device. It is associated with the device name representing 210.

  In addition, the generation unit 114 obtains an average value of amplitudes from the measurement values that are specified by the specifying unit 113 and conforms to the main frequency of 0.017 Hz, and calculates the average value of the obtained amplitudes (about 22 lux). Corresponds to the device name representing. Similarly, the generation unit 114 obtains an average amplitude value from the measurement value that is specified by the specification unit 113 and conforms to the main frequency of 0.01 Hz, and calculates the obtained average amplitude value (about 14 lux) as the lighting device. 230 is associated with the device name representing 230.

  The position estimation unit 115 obtains (estimates) the position of the measurement device 300 with respect to the illumination device from the magnitude relationship based on the average value of the amplitude associated with the illumination device name representing each of the illumination devices 200 to 230.

  Specifically, in order to obtain a magnitude relationship based on the average value of amplitude, the position estimation unit 115 first multiplies the average value of amplitude associated with each lighting device name by a correction value.

  Specifically, the position estimation unit 115 multiplies the average value of the amplitude associated with the device name representing the lighting device 200 by 1.6, and averages the amplitude associated with the device name representing the lighting device 210. Is multiplied by 1.0, the average amplitude associated with the device name representing the lighting device 220 is multiplied by 1.6, and the average amplitude associated with the device name representing the lighting device 230 is multiplied by 4. By multiplying by 0, the average value of amplitude is corrected.

  As a result, the magnitude relationship of the average value of the corrected amplitude is, for example, the corrected average value associated with the device name representing the illumination device 210> correction associated with the device name representing the illumination device 220. The relationship between the average value of the subsequent amplitude> the average value of the corrected amplitude associated with the device name representing the illumination device 200> the average value of the corrected amplitude associated with the device name representing the illumination device 230 is shown. In this case, the position estimation unit 115 estimates the position of the measurement apparatus 300 from the magnitude relationship based on the average value of amplitudes as follows. That is, the position estimation unit 115 is configured so that the measuring device 300 is positioned in the vicinity of the lighting device 210 and is not positioned between the lighting device 210 and the lighting device 200 but between the lighting device 210 and the lighting device 220. presume. Then, the position estimation unit 115 displays the estimated position of the measurement device 300 on the display unit 150.

  As described above, the control device 100 according to the second embodiment frequency-decomposes the measured value (variation thereof) for each specified time zone to obtain a predetermined frequency band (0.005 Hz to 0 in this embodiment). .06 Hz) frequency component is specified, and illuminance information indicating the size (average value of amplitude) of the specified frequency component is generated for each main frequency. And the control apparatus 100 calculates | requires the position of the measuring apparatus 300 with respect to an illuminating device from the magnitude relationship based on the illumination intensity (average value of amplitude) shown by illumination intensity information. That is, the control device 100 determines the position of the measurement device 300 based on the illuminance obtained by removing the influence of disturbance light indicating a frequency outside the predetermined frequency band (for example, fluctuation of illuminance due to ambient light or movement of a person in the room). Ask. Therefore, the control device 100 shows a higher accuracy of the obtained position of the measuring device 300 than the device that obtains the position of the measuring device 300 from the illuminance that does not remove the influence of ambient light.

  Moreover, the control apparatus 100 of Embodiment 2 changes all the emitted light intensity of each illuminating device 200-230 within the same period. Therefore, the control apparatus 100 of Embodiment 2 keeps the period spent from the start of light emission intensity change to the end of each lighting apparatus 200 to 230 in a short period of time, as compared with the control apparatus 100 of Embodiment 1. be able to. Therefore, as compared with the control device 100 of the first embodiment, the control device 100 of the second embodiment can also keep the period until the start of the process for obtaining the position of the measuring device 300 in a short time.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and applications are possible.

  In the control device 100 of the first embodiment and the second embodiment described above, the predetermined frequency bands are set to 0.005 Hz to 0.02 Hz, 0.005 Hz, and 0.06 Hz, respectively. Absent. That is, the predetermined frequency band is a frequency band that does not include a frequency of 0.003 Hz or less shown when the change in the illuminance of external light is converted or a frequency caused by fluctuations in illuminance caused by a person moving in the room. Good. Therefore, the control device 100 of each embodiment sets the predetermined frequency band to an arbitrary frequency band exceeding 0.003 Hz (for example, 0.004 Hz to 1.0 Hz, 0.008 Hz to 0.5 Hz, etc.). Also good.

  Moreover, although the control apparatus 100 of the illumination system 10 of each embodiment mentioned above was comprised with the one measuring apparatus 300, it is not restricted to this. That is, a plurality of measuring devices 300 constituting the illumination system 10 may be provided. In the case of this configuration, each measurement device 300 transmits information indicating the device name of each measurement device 300 (information that can identify each measurement device 300) to the control device 100 in association with the measurement value. And the control apparatus 100 should just obtain | require the position of each measuring device 300 from each measured value matched with the apparatus name etc. of each measuring device 300. FIG.

  Moreover, the control apparatus 100 of each embodiment mentioned above respectively positions the position of the measuring apparatus 300 with respect to each of the lighting apparatuses 200 to 230 based on the magnitude relationship based on the peak value of the waveform or the magnitude relationship based on the average value of the amplitude. I asked, but it is not limited to this. That is, the control device 100 of each embodiment uses the position (coordinates) of the arrangement of the illumination devices 200 to 230 to position the measurement device 300 instead of the position of the measurement device 300 with respect to the illumination devices 200 to 230. Coordinates may be obtained.

  In the case of this configuration, the control device 100 of each embodiment causes the storage unit 120 to store the positions of the respective lighting devices 200 to 230 that are made clear in advance. Specifically, the control device 100 of each embodiment causes the storage unit 120 to store coordinate information indicating the position of each of the lighting devices 200 to 230 in the x coordinate and the y coordinate. Here, the x-coordinate indicates the direction in which the lighting devices 200 to 230 are arranged in a line (see FIG. 1), and the y-coordinate indicates the direction from the back of the page of FIG.

  And the control apparatus 100 (position estimation part 115) of each embodiment is the peak value after correction | amendment matched with the apparatus name showing the illuminating device 210 (or the average value of the amplitude after correction | amendment. Correction | amendment. When unnecessary, not the corrected peak value, but simply the peak value)> the corrected peak value associated with the device name representing the illumination device 220 (or the average value of the corrected amplitude, no correction is required). In this case, not the corrected peak value, but simply the peak value)> the corrected peak value associated with the device name representing the illumination device 200 (or the average value of the corrected amplitude, which does not require correction). In this case, not the corrected peak value, but simply the peak value)> the corrected peak value associated with the device name representing the illumination device 230 (or the average value of the corrected amplitude. When correction is not required Is the corrected peak value Without simply, indicating the relationship between the peak value), as follows, obtaining the coordinates of the position of the measuring device 300.

  That is, the control device 100 (position estimation unit 115) of each embodiment reads the coordinates of the illumination device 210 from the storage unit 120 because the measurement device 300 is located in the vicinity of the illumination device 210. Thereafter, the control device 100 (position estimation unit 115) of each embodiment displays the read coordinates of the illumination device 210 on the display unit 150 and indicates that the measurement device 300 is located near the displayed coordinates. The message is displayed on the display unit 150. Thus, the control apparatus 100 of each embodiment may obtain | require the position of the measuring apparatus 300 by a coordinate using the position (coordinate) of arrangement | positioning of each illuminating device 200-230.

  Moreover, when the position (coordinates) of the arrangement of the window 400 is stored in the storage unit 120 of the control device 100 of each embodiment, the control device 100 of each embodiment can be used as follows. . That is, when the measurement value transmitted from the measurement device 300 indicates saturation (when the measurement device 300 is close to the window 400 and the illuminance is too large), the control device 100 determines that the measurement device 300 is near the window 400. Therefore, the coordinates of the window 400 are read from the storage unit 120. Thereafter, the control device 100 (position estimation unit 115) of each embodiment displays the read coordinates of the window 400 on the display unit 150, and a message indicating that the measurement device 300 is located near the displayed coordinates. May be displayed on the display unit 150. In this case, since the measurement value indicates saturation, the control device 100 cannot determine the position of the measurement device 300 with respect to each of the lighting devices 200 to 230, but the measurement device 300 is positioned near the window 400. Can show.

  Further, the control device 100 according to each of the above-described embodiments is configured so that each of the lighting devices 200 to 230 has a square waveform obtained by discretizing a sine wave having a cycle of the reciprocal of the main frequency included in a predetermined frequency band in three stages. Although each illuminating device 200-230 was controlled so that emitted light intensity changed, it is not restricted to this. That is, the control device 100 according to each embodiment has the light emission intensity of each of the lighting devices 200 to 230 in a square wave shape obtained by discretizing a sine wave having a reciprocal of the main frequency in, for example, two steps or five steps. You may control each illuminating device 200-230 so that it may change. When the sine wave is discretized in two stages, the control device 100 according to each embodiment switches between irradiation (on) and irradiation stop (off) of visible light from each of the lighting devices 200 to 230. Thus, the lighting devices 200 to 230 are controlled.

  In addition, the control device 100 of each embodiment has a square wave shape obtained by discretizing a sine wave whose period is the reciprocal of the frequency exceeding 0.003 Hz, which is shown when the illuminance by external light is frequency-resolved. You may control each illuminating device 200-230 so that the light emission intensity | strength of each illuminating device 200-230 may change. That is, the control device 100 according to each embodiment includes, for example, each illumination device in a square wave shape obtained by discretizing a sine wave having a frequency (for example, 0.004 Hz or 0.1 Hz) included in a predetermined frequency band in three stages. The lighting devices 200 to 230 may be controlled so that the respective light emission intensities 200 to 230 change.

  Moreover, although the control apparatus 100 of each embodiment mentioned above controlled each illuminating device 200-230 so that light emission intensity might change to square wave shape, it is not restricted to this. That is, the control device 100 of each embodiment sets each of the lighting devices 200 to 230 so that the light emission intensity changes in a rectangular wave shape or a triangular wave shape whose period is the reciprocal of the main frequency included in a predetermined frequency band, for example. You may control.

  Further, the illumination system 10 of each of the above-described embodiments uses, for example, the measurement device 300 including a temperature sensor, and adjusts the temperature so that the temperature measured by the measurement device 300 at the obtained position becomes the target temperature. You may apply to the system which controls the air conditioner to perform.

  Moreover, although the illumination system 10 of each embodiment mentioned above used four illumination devices, it is not restricted to this. That is, the illumination system 10 may use (or arrange) two or six illumination devices, for example.

  In addition, the control device 100 according to Embodiment 1 described above stops the irradiation from another lighting device when the light emission intensity of one lighting device is changed (see FIG. 4), but is limited to this. is not. That is, the control device 100 according to Embodiment 1 does not necessarily have to stop the irradiation from the other illumination devices. In other words, any change in illuminance that falls outside the predetermined frequency band can be removed from the measured illuminance value. For example, the visible light emitted from another illumination device is turned off in response to a user operation. Alternatively, visible light may be emitted from another lighting device at a constant illuminance.

  Moreover, although the control apparatus 100 of Embodiment 2 mentioned above changed all the emitted light intensity of each illuminating device 200-230 within the same period, it is not restricted to this. That is, the control device 100 according to the second embodiment sets the emission intensity of each of the lighting devices 200 to 230 in different time zones in the same manner as the control device 100 according to the first embodiment after setting the main frequencies to different frequencies. It may be changed.

  In the above-described embodiment, a program for controlling the control device 100 is a computer such as a flexible disk, a CD-ROM (Compact Disc Read-Only Memory), a DVD (Digital Versatile Disc), and an MO (Magneto-Optical Disc). May be stored in a readable recording medium and distributed, and the program may be installed in a computer or the like to constitute a control device that executes the processing shown in FIG.

  Further, the above-described program may be stored in a disk device or the like of a predetermined server device on a communication network such as the Internet, and may be downloaded, for example, superimposed on a carrier wave.

  In addition, when the processing shown in FIG. 11 described above is realized by sharing each OS (Operating System), or when the processing shown in FIG. It may be stored and distributed, or downloaded.

  Various embodiments and modifications can be made to the present invention without departing from the broad spirit and scope of the present invention. Further, the above-described embodiment is for explaining the present invention, and does not limit the scope of the present invention. In other words, the scope of the present invention is indicated by the scope of claims, not the embodiment described above. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Illumination system 100 Control apparatus 110,240,310 Control part 111 Light emission control part 112 Measurement value acquisition part 113 Specification part 114 Generation part 115 Position estimation part 120 Storage part 121 Irradiation information storage part 122 Measurement value storage part 130,250 Wired communication Unit 140 input unit 150 display unit 160 wireless communication unit 200 to 230 illuminating device 260 light source unit 300 measuring device 320 illuminance sensor unit 330 wireless communication unit 400 window

Claims (7)

A light emission control unit that changes the emission intensity of each of the plurality of lighting devices arranged at different positions according to a variation pattern in which a main frequency component when frequency-resolved is within a predetermined frequency band;
An acquisition unit that acquires a change in illuminance measured by a measurement device that receives light emitted by the plurality of illumination devices;
A specifying unit that associates the change in illuminance acquired by the acquiring unit with any of the plurality of lighting devices;
A generation unit that identifies a frequency component of the predetermined frequency band from a change in illuminance for each of the lighting devices specified by the specifying unit, and generates illuminance information representing the frequency component of the specified predetermined frequency band;
From the magnitude relationship of the illuminance represented by the illuminance information for each illumination device generated by the generation unit, a position estimation unit for determining the position of the measurement device with respect to the plurality of illumination devices;
A control device comprising: The light emission control unit changes the light emission intensity of each of the plurality of lighting devices so that the lower limit frequency of the predetermined frequency band is higher than the frequency indicated by the main frequency when the illuminance by external light is frequency-resolved. Let
The control device according to claim 1. The light emission control unit sequentially changes the light emission intensity of each of the lighting devices in a time-sharing manner;
The control device according to claim 2. The light emission control unit changes the light emission intensity of each of the illumination devices so that each of the main frequencies when the light emission intensity of each of the plurality of illumination devices is frequency-resolved indicates a different frequency.
The control device according to claim 2. The light emission control unit changes the light emission intensity of each of the plurality of illumination devices in a square wave shape having a cycle of the reciprocal of the main frequency included in the predetermined frequency band.
The control device according to claim 3 or 4. A control method for a control device, comprising:
A light emission control step in which the control device changes the light emission intensity of each of the plurality of lighting devices arranged at different positions according to a variation pattern in which the main frequency component when frequency-resolved is within a predetermined frequency band;
An acquisition step in which the control device acquires a change in illuminance measured by a measuring device that receives light emitted by the plurality of lighting devices;
A specifying step in which the control device associates the change in illuminance acquired in the acquiring step with any of the plurality of lighting devices;
The control device specifies a frequency component of the predetermined frequency band from a change in illuminance for each lighting device specified by the specifying step, and generates illuminance information representing the frequency component of the specified predetermined frequency band. Generation step;
A position estimating step for determining the position of the measuring device with respect to the plurality of lighting devices from the magnitude relationship of the illuminance represented by the illuminance information for each lighting device generated by the generating step;
A control method comprising: To the computer that controls the control device,
A light emission control function for changing the light emission intensity of each of a plurality of lighting devices arranged at different positions according to a variation pattern in which a main frequency component when frequency-resolved is within a predetermined frequency band;
An acquisition function for acquiring a change in illuminance measured by a measurement device that receives light emitted by the plurality of illumination devices;
A specific function for associating the change in illuminance acquired by the acquisition function with any of the plurality of lighting devices;
A generation function for identifying a frequency component of the predetermined frequency band from a change in illuminance for each of the lighting devices specified by the specific function, and generating illuminance information representing the frequency component of the specified predetermined frequency band,
A position estimation function for determining the position of the measuring device with respect to the plurality of lighting devices from the magnitude relationship of the illuminance represented by the illuminance information for each lighting device generated by the generation function;
A program that realizes

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