JP6956508B2 - Lighting control device and lighting control system - Google Patents

Description

The present invention relates to a lighting control device and a lighting control system.

There is known a lighting control device that automatically turns on a luminaire when it detects the presence of a human body, and then automatically turns off the luminaire after a certain period of time has passed since the presence of the human body was no longer detected.

For example, when the lighting control device disclosed in Patent Document 1 detects the movement of the human body, all the lighting fixtures are dimmed to a high level of brightness, and when it is detected that the human body has stopped, or When the human body is no longer detected, only the luminaire corresponding to the motion sensor that detects the presence of the human body is controlled to a high level of brightness, and the other luminaires are dimmed to a low level of brightness. do.

Japanese Unexamined Patent Publication No. 7-263151

The lighting control device disclosed in Patent Document 1 continues to light at a constant brightness for a certain period of time even when a pedestrian passes by and no one is left. Therefore, power is wasted.

In addition, when the movement of the human body is detected, all the lighting fixtures are continuously lit with a high level of brightness, which may be a waste of electric power.

Further, conventionally, a lighting control device installed in a collective toilet in a building detects a human body by a motion sensor installed at the entrance of the toilet and lights a lighting fixture. However, this type of lighting control device lights the luminaire for a relatively long fixed time in consideration of use in a private room outside the detection range of the motion sensor. Therefore, when the user does not use the private room or when he / she leaves the toilet in a short time, waste of electric power occurs. On the other hand, it is inconvenient if the lighting time of the lighting equipment is shortened uniformly.

An object of the present invention has been made in view of the above circumstances, and an object of the present invention is to enable more power-saving lighting while maintaining user convenience.

The lighting control device according to the present invention includes a sensor information processing unit and a control unit. The sensor information processing unit determines the necessity of turning on and off the lighting equipment based on the human body detection information received from the motion sensor and other environment detection information received from an environment sensor different from the motion sensor. do. The control unit controls the light emission intensity of the lighting equipment based on the walking speed of the user based on the judgment of the sensor information processing unit. Another environmental sensor is a second motion sensor that is separate from the motion sensor. The second motion sensor is installed in a plurality of private rooms outside the detection range of the motion sensor. Lighting fixtures commonly illuminate multiple private rooms. The sensor information processing unit receives the second human body detection information from the second motion sensor. The sensor information processing unit determines the necessity of turning on and off the lighting fixture based on the human body detection information received from the motion sensor and the second human body detection information received from the second motion sensor.

The lighting control device according to the present invention determines the necessity of turning on and off the lighting equipment based on not only the human body detection information received from the motion sensor but also the environmental information acquired by another environmental sensor. Therefore, appropriate lighting and extinguishing control can be performed according to the situation. Therefore, it is possible to reduce the waste of power consumption of the lighting equipment while maintaining the convenience of the user.

Configuration diagram of the lighting control system according to the first embodiment of the present invention. Functional block diagram of the lighting control system according to the first embodiment Hardware configuration diagram of the lighting control device according to the first embodiment A flowchart showing a processing procedure of the lighting control system according to the first embodiment. The figure which shows the change of the illuminance around the luminaire when the luminaire is controlled by the luminaire control system which concerns on Embodiment 1. Configuration diagram of the lighting control system according to the second embodiment of the present invention A flowchart showing a processing procedure of the lighting control system according to the second embodiment. Configuration diagram of the lighting control system according to the third embodiment of the present invention. Configuration diagram of a private room of the toilet according to the third embodiment Block diagram of the lighting control system according to the third embodiment A flowchart showing a processing procedure of the lighting control system according to the third embodiment. Configuration diagram of the lighting control system according to the fourth embodiment of the present invention.

Hereinafter, the lighting control device and the lighting control system according to the embodiment of the present invention will be described with reference to the drawings.

(Embodiment 1)
Hereinafter, the lighting control system according to the first embodiment will be described with reference to FIGS. 1 to 4.

The lighting control system 1 according to the present embodiment controls lighting, extinguishing, and dimming of a lighting fixture 30 installed on the ceiling of a passage. In this embodiment, as shown in FIG. 1, it is assumed that the pedestrian 110 moves in one direction to the outside of the irradiation range of the lighting fixture 30 via the positions indicated by the reference numerals 130 and the reference numerals 150. There is.

The lighting control system 1 includes a lighting control device 10, a motion sensor 40, an illuminance sensor 50, and a dimming signal terminal 60, and has a configuration in which they are connected via a communication network 20. The lighting control system 1 is connected to the lighting fixture 30 to be controlled via the communication network 20.

In the lighting control device 10, the human sensor 40 detects the human body and the illuminance detected by the illuminance sensor 50 is based on the human body detection information received from the human sensor 40 and the illuminance information received from the illuminance sensor 50. When the illuminance is equal to or less than the reference illuminance, it is determined that it is necessary to turn on the luminaire 30, and the brightness thereof is set. When it is determined that the lighting fixture 30 should be turned on, the lighting control device 10 transmits dimming control information to the dimming signal terminal 60. The dimming control information includes information on the brightness of the luminaire 30 such as the ratio to the maximum emission power and the duty ratio driven by PWM (Pulse Width Modulation) in order to control the dimming of the luminaire 30. The dimming control information further includes information instructing the lighting fixture 30 to be turned on and off.

Assuming that the maximum detection radius is R, the motion sensor 40 is installed at a position slightly smaller than R in front of the luminaire 30 when viewed from the pedestrian 110. For example, if the maximum detection radius R of the motion sensor 40 is 15 m, the motion sensor 40 is installed on a ceiling portion, a wall surface, or the like at a position about 10 to 14 m in front of the lighting fixture 30. The motion sensor 40 determines whether or not a human body exists within the detection range 120, and transmits human body detection information indicating the presence or absence of the human body to the lighting control device 10 via the communication network 20.

The illuminance sensor 50 is installed closer to the luminaire 30 than the motion sensor 40. The illuminance sensor 50 detects the brightness around the lighting fixture 30, and transmits illuminance information indicating the detected brightness to the lighting control device 10 via the communication network 20. The illuminance sensor 50 is an example of an environment sensor that detects the surrounding environmental condition, and outputs illuminance information indicating illuminance, which is one of the surrounding environments.

The dimming signal terminal 60 drives and controls the lighting fixture 30 based on the dimming control information received from the lighting control device 10, and controls its lighting, extinguishing, and brightness.

As shown in FIG. 2, the lighting control device 10 functionally includes a communication unit 14 that performs communication, a sensor information processing unit 13 that determines the necessity of turning on and off, and a memory unit 12 that stores setting information. A control unit 11 that generates dimming control information based on the setting information and the determination result of the sensor information processing unit 13 and transmits the dimming control information to the communication unit 14 is provided.

The communication unit 14 receives the human body detection information from the motion sensor 40 and the illuminance information from the illuminance sensor 50, and transmits the illuminance information to the sensor information processing unit 13. Further, the communication unit 14 transmits the dimming control information received from the control unit 11 to the dimming signal terminal 60.

When the sensor information processing unit 13 receives the human body detection information and the illuminance information via the communication unit 14, indicates that the human body detection information has detected the human body, and the illuminance indicated by the illuminance information is equal to or less than the reference illuminance. A signal instructing the lighting of the lighting fixture 30 to be turned on is transmitted to the control unit 11. When the human body detection information indicates that the human body is no longer detected, the sensor information processing unit 13 transmits a signal instructing the lighting fixture 30 to turn off to the control unit 11.

The memory unit 12 stores setting information preset by an installer, a user, or the like. The setting information includes the threshold value of the ambient illuminance (hereinafter referred to as the illuminance reference value) Ih when the lighting fixture 30 is turned on, the time interval ΔT when the brightness of the lighting fixture 30 is adjusted stepwise, and the adjustment amount ΔI of the emission intensity. Information such as the upper limit IL of the ambient brightness of the luminaire 30 is included. Further, the memory unit 12 transmits necessary setting information to the control unit 11 in response to a request from the control unit 11. The details of each set value will be described later.

The control unit 11 generates dimming control information based on the determination of the sensor information processing unit 13 and the setting information received from the memory unit 12, and transmits the dimming control information to the communication unit 14.

In terms of hardware, the lighting control device 10 having the above-mentioned functions includes a processor 501, a storage device 502, and an interface 503, as shown in FIG.

Each function of the control unit 11 and the sensor information processing unit 13 described above is realized by the processor 501 executing a lighting control program stored in the storage device 502. The contents of the lighting control program will be described later with reference to FIG.

The memory unit 12 is realized by the storage device 502. The storage device 502 includes a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory device, and the like, and stores a lighting control program executed by the processor 501 in addition to the above-mentioned setting information.

The function of the communication unit 14 in the lighting control device 10 is realized by the interface 503. The interface 503 communicates with each device connected via the communication network 20.

Although FIG. 3 shows an example in which the lighting control device 10 includes one processor 501, one storage device 502, and one interface 503, each function is realized by providing a plurality of processors, storage devices, and interfaces. May be good.

Next, the operation of the lighting control system 1 will be described with reference to FIGS. 1 to 4.

When the power is turned on, the processor 501 in the lighting control device 10 functions as the control unit 11 and the sensor information processing unit 13 shown in FIG. 2 by executing the lighting control program stored in the storage device 502. , The lighting control process shown in FIG. 4 is continuously executed.

When the process is started, the sensor information processing unit 13 receives the human body detection information from the motion sensor 40 and the illuminance information from the illuminance sensor 50 via the communication unit 14 (step S101).

The sensor information processing unit 13 determines the necessity of lighting based on the received human body detection information and the illuminance information (step S102). Specifically, the sensor information processing unit 13 determines from the human body detection information that the human body does not exist within the detection range 120, and from the illuminance information, the periphery of the luminaire 30 is brighter than the illuminance reference value Ih. If it is determined, it is determined that the lighting fixture 30 does not need to be turned on (step S102: No), and the process is returned to step S101.

On the other hand, the sensor information processing unit 13 determines from the human body detection information that the human body exists within the detection range 120, and determines from the illuminance information that the brightness around the luminaire 30 is equal to or less than the illuminance reference value Ih. In this case, it is determined that the lighting fixture 30 needs to be turned on (step S102: Yes). The illuminance reference value Ih is set to a value brighter than the brightness at which walking becomes difficult, for example, when the lighting fixture 30 is not lit.

When the sensor information processing unit 13 determines that it is necessary to turn on the light (step S102: Yes), the control unit 11 generates dimming control information instructing the light emission intensity ΔI to emit light, and the control unit 11 generates light control information via the communication unit 14. Is transmitted to the dimming signal terminal 60.

In response to this dimming control information, the dimming signal terminal 60 lights the lighting fixture 30 with the light emission intensity ΔI (step S103). As a result, the periphery of the luminaire 30 becomes bright to some extent.

The control unit 11 reads the illuminance information output by the illuminance sensor 50 for a minute time ΔT, and determines whether or not the illuminance around the luminaire 30 indicated by the illuminance information has reached the upper limit value IL.

When it is determined that the upper limit value IL of the illuminance has not been reached, the control unit 11 generates dimming control information instructing to increase by the adjustment amount of the lighting fixture 30 after the lapse of the minute time ΔT, and the communication unit 14 Is transmitted to the dimming signal terminal 60 via.

As shown in FIG. 5, the light emission intensity of the luminaire 30 increases stepwise every time ΔT. The amount of time ΔT and the amount of light emission intensity adjusted need not be constant and may vary. In this way, when lit, the luminaire 30 is initially set to be dark and gradually becomes brighter. Therefore, the inrush current to the lighting fixture 30 can be reduced, and the power consumption can be reduced.

The time from when the luminaire 30 is turned on to when the brightness is maximized and the time when the pedestrian 110 is expected to walk a distance twice the detection distance R of the motion sensor 40 are approximately the same. The illuminance reference value Ih, the time interval ΔT, the adjustment amount ΔI, and the upper limit value IL of the brightness are set so as to be equal.

When the light emission intensity of the luminaire 30 is increased until the ambient illuminance reaches the upper limit IL, the control unit 11 waits while maintaining the brightness of the luminaire 30 until the motion sensor 40 no longer detects the presence of the human body. (Step S104).

After that, when the presence of the human body is no longer detected, the motion sensor 40 outputs information indicating that the human body cannot be detected within the detection range 120.

When the sensor information processing unit 13 takes in the human body detection information indicating that the human body cannot be detected, the sensor information processing unit 13 determines that it is necessary to turn off the lighting fixture 30.

In response to this determination, the control unit 11 generates dimming control information instructing that the light emission intensity of the lighting fixture 30 is reduced by the adjustment amount ΔI, and transmits the dimming control information to the dimming signal terminal 60 via the communication unit 14. do.

In response to this dimming control information, the dimming signal terminal 60 reduces the light emission intensity of the lighting fixture 30 by an adjustment amount. The control unit 11 generates dimming control information that reduces the light emission intensity of the lighting fixture 30 by the adjustment amount each time the minute time ΔT elapses, and transmits the dimming control information to the dimming signal terminal 60 via the communication unit 14. (Step S105).

In this way, as shown in FIG. 5, the light emission intensity of the luminaire 30 gradually decreases every time ΔT. The amount of time ΔT and the amount of light emission intensity adjusted need not be constant and may vary. Moreover, it may be different from the one at the time of lighting. In this way, the luminaire 30 is finally completely turned off.

After that, the control returns to step S101 and repeats the above-mentioned process.

The above operation flow will be described by applying it to a scene in which the pedestrian 110 shown in FIG. 1 continues walking via the positions indicated by the reference numerals 130 and the reference numerals 150.

Since the pedestrian 110 is outside the detection range 120 until it reaches the position indicated by the reference numeral 130, the motion sensor 40 does not detect the presence of the human body within the detection range 120. Therefore, there is no need to turn on the lighting fixture 30 (step S102: No), and steps S101 and S102 are repeated.

When the pedestrian 110 reaches the position indicated by the reference numeral 130, the motion sensor 40 detects the presence of the pedestrian 130 within the detection range 120. If the brightness around the lighting fixture 30 is equal to or less than the illuminance reference value Ih, the sensor information processing unit 13 determines that the lighting fixture 30 needs to be turned on (step S102: Yes). The control unit 11 sequentially transmits dimming control information for lighting the lighting fixture 30 and dimming control information for increasing the light emission intensity of the lighting fixture 30 to the dimming signal terminal 60.

The dimming signal terminal 60 controls the lighting fixture 30 in response to the dimming control information, and gradually increases the light emission intensity thereof.

As a result, when the pedestrian 110 reaches the position indicated by the reference numeral 130, the lighting fixture 30 located slightly far from the pedestrian 110 lights up darkly, and the pedestrian 130 moves toward the position indicated by the reference numeral 150. While continuing, the luminaire 30 gradually becomes brighter. Then, when the pedestrian 130 reaches the vicinity of the illumination, the light emission intensity of the lighting fixture 30 is also maximized, and the ambient illuminance is also maximized (step S103). From the viewpoint of the pedestrian 130, the lighting fixture 30 becomes brighter as it approaches the lighting fixture 30.

After that, the lighting control device 10 waits until the motion sensor 40 does not detect the presence of the pedestrian 130 within the detection range 120 (step S104).

When the pedestrian 130 reaches the position indicated by the reference numeral 150, the motion sensor 40 outputs human body detection information indicating that the presence of the pedestrian 150 is not detected. In response to this human body detection information, the sensor information processing unit 13 determines that it is necessary to turn off the light, and the control unit 11 generates dimming control information for the light emission intensity of the lighting fixture 30 to generate a dimming signal. It is sequentially transmitted to the terminal 60.

In response to the dimming control information, the dimming signal terminal 60 gradually darkens the lighting fixture 30 and finally turns it off (step S105). From the viewpoint of the pedestrian 150, the lighting fixture 30 behind becomes darker as the distance from the lighting fixture 30 increases. However, since the lights are not turned off instantaneously, the lighting fixture 30 can be turned off without much hindering the walking of the pedestrian 150. In addition, since it gets darker as the distance increases, there is no inconvenience in walking, unnecessary lighting is suppressed, and power consumption is reduced.

In the lighting control system and the lighting control device described above, the motion sensor 40 is installed in front of the lighting fixture 30. Therefore, the power consumption is reduced by avoiding unnecessary lighting based on the human body detection information and the illuminance information. Further, at the time of lighting, the light emitting intensity of the lighting fixture 30 is gradually increased. As a result, the inrush current at the time of lighting can be reduced.

Further, by increasing the brightness of the luminaire 30 stepwise when it is lit and gradually lowering it when it is turned off, the luminaire 30 becomes an appropriate brightness at an appropriate timing. Therefore, it is possible to prevent the lighting fixture 30 from being unnecessarily kept on and to reduce the power consumption.

As described above, the lighting control device 10 illuminates based on the human body detection information received from the motion sensor 40 and the illuminance information received from the illuminance sensor 50 which is an environment sensor different from the motion sensor 40. Power consumption is reduced by controlling the lighting and extinguishing of the fixture 30 and suppressing unnecessary lighting.

(Embodiment 2)
Hereinafter, the lighting control system according to the second embodiment will be described with reference to FIGS. 6 and 7.

The lighting control system 1A is a system that controls lighting, extinguishing, and dimming of the lighting fixture 30 and the lighting fixture 31 installed on the ceiling of the passage. The basic configuration of the lighting control system 1A is the same as that of the first embodiment, but includes two motion sensors, two illuminance sensors, and two dimming signal terminals, all of which are connected to the communication network 20. The point is different from the first embodiment. The lighting control system 1A is connected to the lighting fixture 30 and the lighting fixture 31 to be controlled via the communication network 20. Similar to the first embodiment, the lighting control system 1A assumes a scene in which a pedestrian moves in one direction from the position indicated by reference numeral 110 to the outside of the irradiation range of the lighting fixture 31 via the positions indicated by reference numerals 130 and 150. ing.

Similar to the first embodiment, the motion sensor 40 is installed at a position slightly smaller than the maximum detection distance R in front of the luminaire 30 when viewed from the pedestrian 110. The motion sensor 41 is installed at a position intermediate between the lighting fixture 30 and the lighting fixture 31. Further, there is an overlapping range between the detection range 120 of the motion sensor 40 and the detection range 140 of the motion sensor 41.

The illuminance sensor 50 is installed closer to the luminaire 30 than the motion sensor 40, and the illuminance sensor 51 is installed closer to the luminaire 31 than the motion sensor 41. The illuminance sensor 50 detects the brightness around the luminaire 30 and the illuminance sensor 51 detects the brightness around the luminaire 31, and transmits illuminance information indicating the detected brightness to the illuminance control device 10.

The dimming signal terminal 60 drives and controls the lighting fixture 30, and the dimming signal terminal 61 drives and controls the lighting fixture 31 based on the dimming control information received from the lighting control device 10, respectively, and the lighting fixture 30 and the lighting fixture 31 are controlled. Turns on, turns off, and changes the brightness.

The lighting control device 10 generates dimming control information for the lighting fixture 30 based on the human body detection information from the motion sensor 40 and the illuminance information from the illuminance sensor 50, and transmits the dimming control information to the dimming signal terminal 60. .. Similarly, the lighting control device 10 generates dimming control information for the lighting fixture 31 based on the human body detection information from the motion sensor 41 and the illuminance information from the illuminance sensor 51, and causes the dimming signal terminal 61 to generate dimming control information. Send.

Each function and hardware configuration of the lighting control device 10 are the same as those in the first embodiment.

Next, the operation of the lighting control system 1A will be described with reference to FIGS. 6 and 7.

When the power is turned on, the processor 501 in the lighting control device 10 functions as the control unit 11 and the sensor information processing unit 13 shown in FIG. 2 by executing the lighting control program stored in the storage device 502. , The lighting control process shown in FIG. 7 is continuously executed.

When the process is started, the sensor information processing unit 13 receives the human body detection information from the motion sensor 40 and the illuminance information from the illuminance sensor 50 via the communication unit 14 (step S201), and illuminates based on them. The necessity of lighting the appliance 30 is determined (step S202). Specifically, as in the first embodiment, the sensor information processing unit 13 determines from the human body detection information that the human body does not exist within the detection range 120, and from the illuminance information, the periphery of the lighting fixture 30 is If it is determined that the lighting fixture 30 is brighter than the illuminance reference value Ih, it is determined that the lighting fixture 30 does not need to be lit (step S202: No), and the process is returned to step S201.

On the other hand, the sensor information processing unit 13 determines from the human body detection information that the human body exists within the detection range 120, and from the illuminance information, the brightness around the lighting fixture 30 is the illuminance reference. When it is determined that the value is Ih or less, it is determined that the lighting fixture 30 needs to be turned on (step S202: Yes).

When the sensor information processing unit 13 determines that it is necessary to turn on the light (step S202: Yes), the control unit 11 outputs dimming control information instructing to emit light at the emission intensity ΔI, as in the first embodiment. It is generated and transmitted to the dimming signal terminal 60 via the communication unit 14.

Similar to the first embodiment, in response to the dimming control information, the dimming signal terminal 60 lights the lighting fixture 30 with the light emission intensity ΔI (step S203). Similar to the first embodiment, the control unit 11 and the dimming signal terminal 60 stepwise increase the light emission intensity of the lighting fixture 30 until the illuminance around the lighting fixture 30 reaches the upper limit IL (step S203). When the illuminance around the luminaire 30 reaches the upper limit IL, the control unit 11 waits while maintaining the brightness of the luminaire 30 until the motion sensor 41 detects the presence of a human body within the detection range 140 (step S204). ).

Similar to the first embodiment, it is expected that the time from when the lighting fixture 30 is turned on to when the brightness is maximized and for the pedestrian 110 to walk twice the detection distance R of the motion sensor 40. The illuminance reference value Ih, the time interval ΔT, the adjustment amount ΔI, and the upper limit value IL of the brightness are set so as to be substantially equal to the time.

When the motion sensor 41 detects the presence of a human body within the detection range 140, the sensor information processing unit 13 determines that the lighting fixture 31 needs to be turned on, and the control unit 11 generates dimming control information for dimming. It is transmitted to the signal terminal 61. The dimming signal terminal 61 lights the lighting fixture 31 based on the received dimming control information. Similar to the luminaire 30, the control unit 11 gradually increases the emission intensity of the luminaire 31 until the illuminance around the luminaire 31 reaches the upper limit IL (step S205). The control unit 11 waits until the motion sensor 40 stops detecting the presence of the human body within the detection range 120 (step S206).

When the motion sensor 40 no longer detects the presence of the human body within the detection range 120, the control unit 11 instructs the lighting fixture 30 to reduce the light emission intensity by the adjustment amount ΔI as in the first embodiment. Information is generated and transmitted to the dimming signal terminal 60 via the communication unit 14. In response to this dimming control information, the dimming signal terminal 60 reduces the light emission intensity of the lighting fixture 30 by an adjustment amount. The reduction is repeated step by step, and finally the lighting fixture 30 is turned off (step S207). After that, the control unit 11 waits until the motion sensor 41 stops detecting the presence of the human body within the detection range 140 (step S208).

When the motion sensor 41 no longer detects the presence of the human body within the detection range 140, the control unit 11 gradually reduces the light emission intensity of the lighting fixture 31 as in the lighting fixture 30, and finally the lighting fixture 31 is reduced. The light is turned off (step S209).

After that, the control returns to step S201 and repeats the above-mentioned process.

The above operation flow will be described by applying it to a scene in which the pedestrian 110 continues walking via the positions indicated by the reference numerals 130 and the reference numerals 150.

When the pedestrian 110 is present at the position indicated by the reference numeral 110, the motion sensor 40 detects the presence of the pedestrian 110 within the detection range 120. If the brightness around the lighting fixture 30 is equal to or less than the illuminance reference value Ih, the sensor information processing unit 13 determines that the lighting fixture 30 needs to be turned on (step S201, step S202: Yes). When there is a need for lighting, the control unit 11 lights the luminaire 30 and gradually increases the emission intensity thereof (step S203). The control unit 11 continues to wait until the motion sensor 41 detects the presence of a human body within the detection range 140 (step S204).

When the pedestrian 110 reaches the position indicated by the reference numeral 130, the motion sensor 41 detects the presence of the pedestrian 130 within the detection range 140. The control unit 11 stops the standby, lights the lighting fixture 31, and gradually increases the emission intensity thereof (step S205). From the viewpoint of the pedestrian 110, at first, only the lighting fixture 30 on the front side when viewed from the pedestrian 110 was lit, but after walking to some extent, the lighting fixture 31 on the back side is also lit. Since the lighting fixture 31 on the back side does not light up unless it walks to some extent, unnecessary lighting is suppressed and power consumption is reduced.

The control unit 11 continues to wait until the motion sensor 40 does not detect the presence of the pedestrian 130 within the detection range 120 (step S206). When the pedestrian 130 continues to walk from the position indicated by the reference numeral 130 toward the position indicated by the reference numeral 150, the pedestrian 130 passes through the detection range 120, so that the motion sensor 40 detects the presence of the pedestrian 130 within the detection range 120. Will not be. The control unit 11 stops the standby, gradually reduces the light emission intensity of the luminaire 30, and finally turns off the luminaire 30 (step S207). From the viewpoint of the pedestrian 130, as the walking is continued, the lighting fixture 30 behind the pedestrian 130 gradually darkens and turns off, but the lighting fixture 31 in front of the pedestrian 130 is still lit. You will not be disturbed by walking. Power consumption can be reduced by turning off the lighting fixture 30 behind the pedestrian 130, which is unnecessary for walking.

After turning off the lighting fixture 30 (step S207), the control unit 11 waits until the motion sensor 41 no longer detects the presence of the pedestrian 130 within the detection range 140 (step S208). When the pedestrian 130 reaches the position indicated by the reference numeral 150 outside the detection range 140, the motion sensor 41 does not detect the presence of the pedestrian 150 within the detection range 140. Then, the control unit 11 stops the standby, gradually reduces the light emission intensity of the luminaire 31, and finally turns off the luminaire 31 (step S209). From the viewpoint of the pedestrian 150, as in the first embodiment, the lighting fixture 31 becomes darker as the distance from the lighting fixture 31 increases. Therefore, the power consumption can be reduced for the same reason as in the first embodiment. ..

As described above, in the lighting control system 1A, the installation positions of the motion sensor 40 and the motion sensor 41 are adjusted, and the lighting fixture is based on the two human body detection information received from the motion sensor 40 and the motion sensor 41. The timing of turning on and off the lights 30 and the lighting fixture 31 is adjusted to suppress unnecessary lighting to reduce power consumption. In other words, the lighting control device 10 has the installation positions of the lighting fixture 30, the lighting fixture 31, the motion sensor 40, and the motion sensor 41, and the first motion detection information received from the motion sensor 40, which is the first motion sensor. The lighting fixture 30 and the lighting fixture 31 are lit based on the second human body detection information which is other environment detection information received from the second motion sensor 41 which is an environment sensor different from the motion sensor 40. Control the extinguishing.

(Embodiment 3)
Hereinafter, the lighting control system and the lighting control device according to the third embodiment will be described with reference to the drawings.

The configuration of the lighting control system according to the present embodiment will be described with reference to FIGS. 8 and 9. The lighting control system 1B is a system that controls the lighting and extinguishing of the lighting fixture 30 installed on the ceiling of the collective toilet 200 in an office building, a public facility, or the like. The lighting control system 1B assumes both a case where the toilet user 300 exits from the collective toilet 200 without using the private room 210 and a case where the toilet user 300 exits from the collective toilet 200 after using the private room 210. There is.

The lighting control system 1B includes a lighting control device 10, a motion sensor 40, and a motion sensor 211 for a private room installed in the private room 210, and they are connected via a communication network 20. Further, the lighting fixture 30 to be controlled is connected to the lighting control system 1B via the communication network 20.

The lighting fixture 30 is installed on the ceiling of the collective toilet 200 and illuminates the inside of the collective toilet 200. Since the private room 210 does not have a separate ceiling, it is possible to irradiate the inside of the private room 210 as well. Further, the lighting fixture 30 is turned on and off under the control of the lighting control device 10.

The lighting control device 10 determines the necessity of turning on and off the lighting fixture 30 based on the human body detection information received from the human sensor 40 and the private room human body detection information received from the private room human sensor 211, and is necessary. If there is a problem, the lighting fixture 30 is controlled to turn on and off.

The motion sensor 40 is installed on the ceiling of the collective toilet 200, determines whether or not a human body exists within the detection range 120, and transmits the presence or absence of the human body to the lighting control device 10 as human body detection information. The entire floor surface in the collective toilet 200 is included in the detection range 120 of the motion sensor 40, but the inside of the private room 210 is not included in the detection range 120 of the motion sensor 40.

The private room human sensor 211 is installed on the side wall in the private room 210, determines whether or not there is a human body seated on the toilet seat 212, and transmits the presence or absence of the human body to the lighting control device 10 as private room human body detection information.

Next, each function of the lighting control device 10 will be described with reference to FIG.

The lighting control device 10 has a communication unit 14 that transmits and receives information to and from the lighting fixture 30, the motion sensor 40, and the motion sensor 211 for a private room via the communication network 20, and the human body detection information and the private room human body detection received from the communication unit 14. The sensor information processing unit 13 that determines the necessity of turning on and off the lighting fixture 30 based on the information, the memory unit 12 that stores the setting information, and the setting information received from the memory unit 12 and the sensor information processing unit 13. A control unit 11 for generating lighting control information for controlling lighting and extinguishing of the luminaire 30 based on a determination is provided.

The communication unit 14 receives the human body detection information from the motion sensor 40 and the human body detection information in the private room from the motion sensor 211 for the private room, and transmits the information to the control unit 11. Further, the communication unit 14 controls lighting and extinguishing of the lighting fixture 30 based on the lighting control information received from the control unit 11.

The sensor information processing unit 13 receives the human body detection information and the private room human body detection information from the communication unit 14, and determines the necessity of turning on / off the lighting fixture 30 based on the information.

The memory unit 12 includes a non-volatile storage medium such as a flash memory or a magnetic disk, and stores setting information preset by an installer, a user, or the like. The setting information includes information on the waiting time described later. Further, the memory unit 12 transmits necessary setting information to the control unit 11 in response to a request from the control unit 11.

The control unit 11 generates lighting control information for controlling the lighting and extinguishing of the lighting fixture 30 based on the determination of the sensor information processing unit 13 and the setting information received from the memory unit 12, and causes the communication unit 14 to generate lighting control information. Send.

The hardware configuration of the lighting control device 10 is the same as that of the first embodiment.

Next, the operation of the lighting control system 1B will be described with reference to FIGS. 8, 9 and 11. This operation is performed by the processor in the lighting control device 10 executing a program. It is assumed that the lighting fixture 30 is turned off when the lighting control system 1B starts operating.

The lighting control device 10 waits until the motion sensor 40 detects the presence of a human body within the detection range 120 (step S301). Since the toilet user 300 is not in the collective toilet 200 at the beginning of the process, the lighting control device 10 continues to stand by. When the toilet user 300 enters the collective toilet 200, the motion sensor 40 detects the presence of the toilet user 300 within the detection range 120, so that the lighting control device 10 stops the standby and lights the lighting fixture 30. (Step S302).

The lighting control device 10 keeps the lighting fixture 30 lit and waits again until the motion sensor 40 does not detect the presence of the toilet user 300 within the detection range 120 (step S303). After the toilet user 300 enters the collective toilet 200, the motion sensor 40 does not detect the presence of the toilet user 300 within the detection range 120 in two cases. One is the case where the toilet user 300 enters the private room 210, and the other is the case where the toilet user 300 leaves the collective toilet 200 without entering the private room 210.

Even if the motion sensor 40 does not detect the presence of the toilet user 300 within the detection range 120, the lighting control device 10 continues to stand by for a certain period of time with the lighting fixture 30 lit (step S304). This is because when the toilet user 300 enters the private room 210, there is a time during which neither the motion sensor 40 nor the motion sensor 211 for the private room can detect the presence of the toilet user 300. The waiting time may be a sufficient time from the time when the toilet user 300 moves to the private room 210 until the private room human sensor 211 detects the presence of the toilet user 300 on the toilet seat 212, for example, 30 seconds. .. This standby time is included in the setting information stored in the memory unit 12 of the lighting control device 10.

After waiting for a certain period of time, the lighting control device 10 determines whether or not the human sensor 211 for the private room has detected the presence of the human body (step S305). When the human sensor 211 for the private room does not detect the presence of the human body (step S305: No), it can be determined that the toilet user 300 has not entered the private room 210 and has left the collective toilet 200, so that the lighting control device 10 is a lighting fixture. 30 is turned off (step S306), and the flow from step S301 is repeated. By this operation, when the toilet user 300 does not use the private room 210, the lighting of the lighting fixture 30 can be minimized, and the power consumption can be reduced.

When the human body sensor 211 for the private room detects the presence of the human body, that is, the toilet user 300 (step S305: Yes), it can be determined that the toilet user 300 has entered the private room 210, so that the lighting control device 10 is a private room user. It waits until the sensor 211 no longer detects the presence of the toilet user 300 (step S307). In this case, the private room human sensor 211 does not detect the presence of the toilet user 300 when the toilet user 300 leaves the private room 210.

Even if the toilet user 300 leaves the private room 210 and the private room human sensor 211 no longer detects the presence of the toilet user 300, the lighting control device 10 continues to stand by for a certain period of time (step S308). The standby is continued in the same manner as when the toilet user 300 enters the private room 210 in step S304, and when the toilet user 300 leaves the private room 210, both the motion sensor 40 and the motion sensor 211 for the private room use the toilet. This is because there is a time when the existence of the person 300 cannot be detected. After continuing to wait for a certain period of time, the process returns to step S303 and waits until the motion sensor 40 does not detect the presence of the toilet user 300. The reason for returning to step S303 is that there is a high possibility that the toilet user 300 has not left the collective toilet 200 even after leaving the private room 210 because he / she is using the wash basin in the collective toilet 200. ..

By the above operation, when the toilet user 300 leaves the collective toilet 200 without using the private room 210, the lighting fixture 30 is quickly turned off, so that unnecessary lighting can be avoided and power consumption can be reduced. .. Further, when the toilet user 300 uses the private room 210, the lighting fixture 30 does not turn off while the private room 210 is in use, and the lighting fixture 30 turns off immediately after leaving the collective toilet 200, so that the power consumption can be reduced. That is, the lighting control device 10 controls the lighting and extinguishing of the lighting fixture 30 based on the human body detection information received from the human sensor 40 and the private room human body detection information received from the private room human sensor 211 to reduce power consumption. We are trying to reduce it. In other words, the lighting control device 10 is the human body detection information received from the motion sensor 40 and the environment information received from the motion sensor 211 for a private room, which is an environment sensor different from the motion sensor 40, and is another environment detection. The lighting and extinguishing of the lighting fixture 30 are controlled based on the information on detecting the human body in the private room.

As a method of detecting the presence of the toilet user 300 in the private room 210, the method of using the private room human sensor 211 has been described, but it is detected that the toilet seat 212 is seated instead of the private room human sensor 211. A private room that detects the presence of a human body in a private room with a seating sensor, a lid open / close sensor for automatically opening and closing the toilet lid, an infrared sensor for flowing water by holding a hand, and an odor sensor for ventilation. It may be used as a sensor. When other sensors are used, the standby time in steps S304 and S308 is appropriately adjusted.

(Embodiment 4)
Hereinafter, the lighting control system and the lighting control device according to the fourth embodiment of the present invention will be described with reference to FIG. The fourth embodiment is a modification of the third embodiment, and the lighting control system 1C is a system for controlling the lighting and extinguishing of the lighting fixture 30 installed on the ceiling of the collective toilet 200 as in the third embodiment.

Compared with the third embodiment, the human sensor 211 for the private room is not installed in the private room 210, but the sound sensor 250 is installed on the ceiling instead, and is connected to the lighting control device 10 via the communication network 20. There is. When the motion sensor 40 does not detect the presence of the toilet user 300 and the sound sensor 250 detects the environmental sound and transmits the sound information which is the environmental information to the lighting control device 10, the toilet user 300 Since this means that the private room 210 is used, the sound sensor 250 functions in the same manner as the motion sensor 211 for the private room in the third embodiment.

The operation flow of the fourth embodiment is the same as that of the third embodiment except that the sound sensor 250 is used instead of the human sensor 211 for the private room. The sound sensor 250 functions as an environment sensor different from the motion sensor 40.

Since it is only necessary to install one sound sensor 250 on the ceiling and connect it to the communication network 20, there is a case where a human sensor 211 for a private room is installed for each private room 210 and each is connected to the communication network 20 in the third embodiment. It can be realized at a lower cost than that of the case, and the power consumption can be reduced as in the case of the third embodiment.

In the third and fourth embodiments, in order to facilitate understanding, it is not mentioned that the brightness is controlled to be changed stepwise when the lighting fixture 30 is turned on and off. However, as in the first and second embodiments, the brightness may be controlled to be changed stepwise when the lighting fixture 30 is turned on and off.

Further, in the first and second embodiments, it has been described that the control unit 11 executes the operation of stepwise controlling the brightness when the lighting fixture 30 is turned on and off via the dimming signal terminal 60. , If similar functions can be realized, the division of functions is arbitrary. For example, the control unit 11 instructs the dimming signal terminal 60 to turn on or off only, and the dimming signal terminal 60 controls to gradually change the brightness of the lighting fixture 30 in response to the instruction. May be good.

Further, the stepwise dimming control may be performed only when the light is on or when the light is off.

Further, the mode of changing the brightness is not limited to the mode described in the first embodiment, and is arbitrary. For example, the brightness may be increased in a predetermined fixed number of steps at a predetermined time interval. Further, when the light is on, the brightness may be increased according to a linear, root function, etc. monotonic increase function, and conversely, when the light is off, the brightness may be decreased according to the monotonic decrease function.

In addition, in order to maximize the brightness of the luminaire when the pedestrian reaches the vicinity of the luminaire, the target brightness and the brightness in the off state at that time when the human sensor detects the human body. In order to obtain the difference DI of , PID (proportional integral differentiation) control, etc. may be executed. The time required for walking may be obtained by dividing the distance L from the outer edge of the detection range of the motion sensor to the lighting device by the average walking speed of the user, for example, 80 to 90 m / min.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the specific embodiment, and the present invention includes the invention described in the claims and the equivalent range thereof. Is included.

1, 1A, 1B, 1C lighting control system, 10 lighting control device, 11 control unit, 12 memory unit, 13 sensor information processing unit, 14 communication unit, 20 communication network, 30, 31 lighting equipment, 40, 41 motion sensor , 50, 51 illuminance sensor, 60, 61 dimming signal terminal, 110, 130, 150 pedestrian, 120 detection range of motion sensor 40, detection range of 140 motion sensor 41, 200 collective toilet, 210 private room, 211 Private room motion sensor, 212 toilet seat, 250 sound sensor, 300 toilet user, 501 processor, 502 storage device, 503 interface

Claims (5)

A sensor information processing unit that determines the necessity of turning on and off the lighting equipment based on the human body detection information received from the motion sensor and other environment detection information received from an environment sensor other than the motion sensor. When,
A control unit that controls the light emission intensity of the lighting fixture based on the walking speed of the user based on the judgment of the sensor information processing unit.
Equipped with a,
The other environment sensor is a second motion sensor different from the motion sensor.
The second motion sensor is installed in a plurality of private rooms outside the detection range of the motion sensor.
The lighting fixture commonly illuminates the plurality of private rooms,
The sensor information processing unit receives the second human body detection information from the second motion sensor, and receives the second human body detection information.
The sensor information processing unit needs to turn on and off the lighting fixture based on the human body detection information received from the motion sensor and the second human body detection information received from the second motion sensor. To judge,
Lighting control device. The other environment sensor is a sound sensor.
The sensor information processing unit receives sound information indicating the presence or absence of environmental sound from the sound sensor, and receives sound information indicating the presence or absence of environmental sound.
The sensor information processing unit determines the necessity of turning on and off the lighting fixture based on the human body detection information from the motion sensor and the sound information from the sound sensor.
The lighting control device according to claim 1. A sensor information processing unit that determines the necessity of turning on and off the lighting equipment based on the human body detection information received from the motion sensor and other environment detection information received from an environment sensor other than the motion sensor. When,
A control unit that controls the light emission intensity of the lighting fixture based on the walking speed of the user based on the judgment of the sensor information processing unit.
With
The other environment sensor is a sound sensor.
The sensor information processing unit receives sound information indicating the presence or absence of environmental sound from the sound sensor, and receives sound information indicating the presence or absence of environmental sound.
The sound sensor detects sounds from a plurality of private rooms that are outside the detection range of the motion sensor.
The lighting fixture commonly illuminates the plurality of private rooms,
The sensor information processing unit determines the necessity of turning on and off the lighting fixture based on the human body detection information from the motion sensor and the sound information from the sound sensor.
Lighting control device. A sensor information processing unit that determines the necessity of turning on and off the lighting equipment based on the human body detection information received from the motion sensor and other environment detection information received from an environment sensor other than the motion sensor. When,
A control unit that controls the lighting equipment to turn it on and off based on the judgment of the sensor information processing unit is provided.
When the sensor information processing unit determines that the lighting fixture needs to be turned on, the control unit obtains the difference between the illuminance in the vicinity of the lighting fixture at that time and the target illuminance, and the user is placed in the vicinity of the lighting fixture. Control the luminaire so that it is brightest before it arrives.
Lighting control device. The lighting control device according to any one of claims 1 to 4.
A motion sensor that transmits human body detection information to the lighting control device,
An environment sensor other than the motion sensor that transmits other environment detection information to the lighting control device,
Lighting control system with.

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