JP2012074151A - Lighting control system - Google Patents

Abstract

[PROBLEMS] To optimize the lamp holding time of a luminaire at each time when a person in the area is detected, while having a simple configuration with a small number of person detection units for detecting a person in a predetermined area. To do.
A lighting control system 1 includes a lighting fixture 2 having a lamp 201 and a fixture-side control unit 204, a lighting control device 3 that controls a lighting state and a lighting holding time of the lamp 201 according to a time schedule, and a person in the area. And a timer unit 5 that counts the elapsed time from when the person in the area is detected. The time schedule is associated with the lighting state of the lamp 201 and the lighting holding time so as to be different for each time. When the person in the area is detected, the appliance-side control unit 204 uses the time schedule until the lighting holding time associated with the time when the person in the area is detected by the person detection unit 4 by the time schedule. The lamp 201 is controlled so as to be in the associated lighting state.
[Selection] Figure 1

Description

  The present invention relates to a lighting control system that controls a lighting state of a lighting fixture.

  2. Description of the Related Art Conventionally, there is known an illumination control device that controls a dimming level of a lighting fixture according to a preset time schedule for the purpose of saving energy, for example (see, for example, Patent Documents 1 to 3).

  Patent Document 4 discloses an illumination device that transmits human sensor information from a sensor connected to a network to a parent device, and switches a lighting holding time according to the number of sensors detected by the parent device that has received the human sensor information. It is disclosed.

JP 2002-252092 A JP 2008-135228 A Japanese Patent No. 3800030 JP-A-9-129377

  By the way, in a store or an office, the existence probability of a person in an area irradiated by a lighting fixture generally differs depending on time. For example, in a store, the preparation time is only the store clerk. In addition, although it varies depending on the type of business, there are many visitors in the restaurant during eating hours, but there are few visitors during other times. Even in the office, there are few employees early in the morning and late at night.

  On the other hand, when detecting a person and controlling a lighting fixture, a pyroelectric sensor (PIR sensor) is generally used because it is inexpensive and consumes less power. Since the pyroelectric sensor detects a temperature change, it cannot detect a person when the person is stationary. For this reason, the lighting holding time is set so that lighting of the lighting fixture can be continued even when a person is stationary. However, if the lighting holding time is increased unnecessarily for safety, there is a problem that even when it is absent, it is lit at the same high output as when it is present and the energy saving effect is reduced. Conversely, if the number of people in the room (the number of people passing through in the aisle) is large, if the lighting holding time is short, it will frequently flash (or high output lighting and low output lighting), When the lamp is an incandescent lamp or a fluorescent lamp, the temperature change of the filament is severe and the lamp life is shortened. Therefore, the lighting holding time should be set longer in a time zone where the number of people in the room is large.

  Since the lighting device described in Patent Document 4 has a configuration in which the lighting holding time is changed according to the number of sensors that detect a person rather than the time zone, for example, a passage or a small space (for example, a specific store in a store) or the like It is necessary to install more sensors than necessary in this area.

  The present invention has been made in view of the above points, and an object of the present invention is to detect a person in an area while having a simple configuration with a small number of human detection units for detecting a person in a predetermined area. Another object of the present invention is to provide a lighting control system capable of optimizing the lighting holding time of a lamp of a lighting fixture every time.

  The lighting control system of the present invention includes a lighting fixture having a lamp that irradiates a preset region and a fixture-side control unit that controls the lamp, a human detection unit that detects a person in the region, and the human detection A timer unit that counts an elapsed time from when the person in the region is detected by the unit, and a lighting state of the lamp of the lighting apparatus when the person exists in the region and the human detection unit The lighting state and lighting holding time of the lamp of the lighting fixture are controlled according to a time schedule that is associated with the lighting holding time for holding the lighting state from the time when a person in the area is detected. A lighting control device, and when the person detecting unit detects the person in the area, the time measured by the timer unit is the time The region is irradiated with the lighting state associated with the time schedule until the lighting holding time associated with the time when the person in the region is detected by the person detection unit by the schedule. The lamp is controlled.

  In this lighting control system, the lighting control device outputs a lighting control signal including information on the lighting state and the lighting holding time to the lighting fixture according to the time schedule, and the lighting fixture includes the human detection unit and The timer unit has the timer unit, and the appliance side control unit of the lighting fixture acquires the illumination control signal from the illumination control device, and when the person in the region is detected by the human detection unit, the timer unit It is preferable that the lamp is controlled so as to irradiate the region in the lighting state of the lighting control signal until the elapsed time counted in step 1 reaches the lighting holding time of the lighting control signal.

  The lighting control system includes a sensor terminal having the human detection unit and the timer unit, and the lighting control device receives lighting control information including information on the lighting state and the lighting holding time according to the time schedule. Output to the terminal, the sensor terminal acquires the lighting control information from the lighting control device, and when the person in the area is detected by the human detection unit, the lighting state of the lighting control information When the elapsed time counted by the timer unit reaches the lighting holding time of the lighting control information, the lighting control for setting the lamp to the original lighting state is output to the lighting fixture. A signal is output to the lighting fixture, and the fixture-side control unit of the lighting fixture controls the lamp according to the lighting control signal from the sensor terminal. It is preferable.

  In this illumination control system, the lighting apparatus includes the person detection unit, and when a person in the region is detected by the person detection unit, a detection result is output to the illumination control apparatus, and the illumination control apparatus Has a timer unit, and when receiving the detection result from the lighting fixture, according to the time schedule, a lighting control signal for turning on the lighting state at the time of existence associated with the time when the detection result was received When the elapsed time counted by the timer unit reaches the lighting holding time, the lighting control signal is output to the lighting fixture when the absence is present, and the lighting fixture side of the lighting fixture is The control unit preferably controls the lamp according to the illumination control signal from the illumination control device.

  The illumination control system includes a sensor terminal having the person detection unit, and the sensor terminal outputs a detection result to the illumination control device when a person in the area is detected by the person detection unit, The control device includes the timer unit, and when receiving the detection result from the sensor terminal, according to the time schedule, information on the lighting state at the time of existence associated with the time when the detection result is received is the sensor terminal When the elapsed time counted by the timer unit reaches the lighting holding time, information on the lighting state when absent is output as the lighting control signal via the sensor terminal. It is preferable to output to an appliance, and the appliance-side control unit of the illumination fixture controls the lamp according to the illumination control signal from the sensor terminal.

  In this lighting control system, when the person detection unit detects a person in the region, the detection result is output to the lighting control device and the lighting fixture, and the lighting control device includes the timer unit, According to the time schedule, when the lighting control signal including information on the lighting state at the time of existence is output to the lighting fixture and the elapsed time after receiving the detection result from the human detection unit becomes the lighting holding time, the time schedule The lighting control signal including information on the lighting state when absent is output to the lighting fixture, and the fixture-side control unit of the lighting fixture controls the lamp according to the lighting control signal from the lighting control device. Is preferred.

  In this lighting control system, the lighting fixture is a pulse width modulation type pulse signal as the lighting control signal, the dimming level corresponding to the duty ratio, and the lighting holding time corresponding to the pulse period. It is preferable to receive.

  This illumination control system preferably includes a brightness sensor that detects the brightness of the area, and the illumination control device controls the length of the lighting holding time according to a detection result of the brightness sensor.

  According to the present invention, the lamp of the luminaire is provided at each time when the person in the area is detected by the person detection unit, with a simple configuration in which the number of person detection parts for detecting the person in the predetermined area is small. The lighting holding time can be optimized.

It is a block diagram which shows the structure of the illumination control system which concerns on Embodiment 1. FIG. It is the schematic which shows the connection state of the illumination control system which concerns on the same as the above. It is a figure which shows the light control signal used for the illumination control system which concerns on the same as the above. It is a figure explaining operation | movement of the illumination control system which concerns on the same as the above. It is a block diagram which shows the structure of the illumination control system which concerns on Embodiment 2. FIG. It is a figure explaining operation | movement of the illumination control system which concerns on the same as the above. It is a block diagram which shows the structure of the illumination control system which concerns on Embodiment 3. FIG. It is a figure explaining operation | movement of the illumination control system which concerns on the same as the above. It is a block diagram which shows the structure of the illumination control system which concerns on Embodiment 4. It is a figure explaining operation | movement of the illumination control system which concerns on the same as the above.

  In the following first to fourth embodiments, a lighting control system that controls the lighting state of the lighting fixture will be described.

(Embodiment 1)
As shown in FIG. 1, the lighting control system 1 according to the first embodiment is a system that controls lighting states of a plurality of lighting fixtures 2 according to a time schedule, and is used in, for example, an office or a store. The lighting control system 1 according to the present embodiment includes a plurality of dimmable lighting fixtures 2 and a lighting control device 3 that controls lighting states of the plurality of lighting fixtures 2.

  The luminaire 2 includes a lamp 201 that irradiates a preset area (not shown), a lighting circuit unit 202 that lights the lamp 201, and a luminaire-side communication unit that receives a dimming signal from the illumination control device 3. 203 and an appliance-side control unit 204 that controls the lamp 201. Furthermore, the lighting fixture 2 of this embodiment is provided with the person detection part 4 which detects the person in an area | region, and the timer part 5 which time-measures. The luminaire 2 is equipped with a microcomputer having a CPU (Central Processing Unit) and a memory. As the lamp 201, for example, a white LED (Light Emitting Diode), RGB-LED, fluorescent lamp, incandescent lamp, organic EL (ElectroLuminescence), HID (High Intensity Discharge) lamp, or the like is used. Note that, depending on the type of the lamp 201, the lighting fixture 2 controls not only dimming but also toning.

  The human detection unit 4 mounted on each lighting fixture 2 is, for example, a PIR (Passive Infrared Ray) sensor. Since the person detection unit 4 cannot detect a person when the person is completely stationary, the luminaire 2 has a function of maintaining a lighting state for a certain period of time once detected.

  The timer unit 5 is, for example, a timer IC or CPU, and measures the elapsed time from when the person in the area is detected by the person detection unit 4. If the person in the area is detected again by the person detection unit 4 during the time measurement, the timer unit 5 is re-triggered and measures the elapsed time from the time of detection again.

  The lighting control device 3 is a device provided with a CPU (including a microcomputer) on which a CPU and a memory are mounted as a main component and provided separately from the lighting fixture 2. The lighting control device 3 is a wall-mounted type device that is mainly attached to a wall of a building. The lighting control device 3 includes a timekeeping unit 31 that measures the current time, a storage unit 32 that stores various information, a device-side communication unit 33 that transmits a dimming signal to the lighting fixture 2, and each unit of the lighting control device 3. And a device-side control unit 34 for controlling. Furthermore, the illumination control device 3 operates when the user performs an input operation, a main power supply 36 that supplies power from a commercial power supply (not shown) to each part, and operates when the main power supply 36 is stopped. And a backup power source 37.

  The lighting control device 3 performs the following time schedule control. Time schedule control is control of automatically switching the lighting state of the lighting fixture 2 according to a preset schedule. For example, when controlling a plurality of lighting fixtures 2 installed in a store, only some of the lighting fixtures 2 are lit up during the preparation time, or the dimming level of each lighting fixture 2 is set lower than usual. To save energy. On the other hand, the illuminance of each luminaire 2 is set to an appropriate illuminance during the opening hours, and the illuminance of each luminaire 2 is set to be higher than the appropriate illuminance during a time when there are many customers such as bargain time. As a result, an appropriate lighting environment is obtained for each time zone, and unnecessary lighting is reduced to save energy.

  The timer unit 31 is, for example, a real time clock (RTC), and measures the current time. The current time includes not only the year / month / day but also the day of the week.

  The storage unit 32 includes, for example, a memory such as an EEPROM (Electrically Erasable Programmable Read Only Memory) or a flash ROM and its peripheral circuit, and stores data of a preset time schedule.

  The apparatus-side control unit 34 uses a CPU mounted on a computer as a main component, and operates according to a program, thereby controlling the lighting state and lighting holding time of the lamp 201 of the lighting fixture 2 according to a time schedule. In the time schedule, the lighting state and lighting holding time of the lamp 201 of the lighting fixture 2 are associated with each time (time zone). The lighting holding time refers to the time for which the lighting state is held from when the person in the area is detected by the person detection unit 4. In the time schedule, for example, a long lighting holding time is set at a time (time zone) when many people go in and out or a time (time zone) when there are many people in the room. The lighting state of the lamp 201 at each time (each time zone) includes a dimming level when a person in the area is present / absent. In the present embodiment, the dimming level when present is different for each time (time zone), but the dimming level when absent is fixed at 25%, which is the lower dimming limit of the lighting fixture 2. The CPU that is the main component of the device-side control unit 34 may be formed integrally with the storage unit 32.

  The apparatus-side control unit 34 outputs a dimming signal including lighting control information related to “system 1” to the lighting fixture 21 and outputs a dimming signal including lighting control information related to “system 2” to the lighting fixture 22. The apparatus side communication unit 33 is controlled. The other systems are the same as “system 1” and “system 2”. For example, for “system n”, the apparatus-side control unit 34 has a dimming signal including illumination control information related to “system n” as the luminaire 2n. The apparatus side communication part 33 is controlled so that it may be output to.

  The device-side communication unit 33 has an output port (not shown) for each system, and receives from the device-side control unit 34 for the luminaire 2 connected to each output port via a dedicated signal line 7. A dimming signal including the illumination control information is output. That is, the apparatus side communication part 33 transmits the light control signal containing the information on a lighting state and lighting holding time to the lighting fixture 2 for every system | system | group according to the instruction | indication of the apparatus side control part 34. FIG.

  The dimming signal transmitted from the apparatus side communication unit 33 is a signal for controlling the light output level of the lamp 201 (color temperature depending on the type of the lamp 201), and has a function as an illumination control signal. . That is, the dimming signal includes illumination control information for making the lighting state controlled by the apparatus-side control unit 34. The dimming signal is an analog signal or a digital signal such as an analog DC voltage or a duty ratio (on duty) of a pulse signal. The dimming signal of the present embodiment is a pulse signal based on a pulse width modulation (PWM) system in which the dimming level corresponds to the duty ratio of the pulse signal, and the lighting holding time corresponds to the pulse period. The system used in the present embodiment is a system standardized as JIS 8120-2: Appendix E. In this standard, one cycle of the pulse signal has a width of 1 ms to 10 ms (frequency: 100 Hz to 1 kHz). Within this range, the pulse period (or frequency) is varied according to the lighting holding time. FIG. 3A shows a dimming signal when the duty ratio (Ton / (Ton + Toff)) is 20%, and FIG. 3B shows dimming when the duty ratio is 50%. Signals are shown. In FIG. 3A, the duty ratios of (a-1), (a-2), and (a-3) are the same, but the cycle is T1 for a-1, T2 for a-2, a- 3 is different from T3 (in the example shown, T1> T2> T3). The same applies to FIG. 3B. For example, if the lighting holding time corresponds to 1 minute in the cycle T1, 5 minutes in the cycle T2, and 10 minutes in the cycle T3, and the correspondence is stored in the lighting fixture 2 and the lighting control device 3, the lighting control device 3 can transmit the information on the lighting state (dimming level) at the time of existence in each time zone and the information on the lighting holding time to the lighting fixture 2 by an analog dimming signal. For example, in the time zone of the midnight mode (20:00 to 22:00), the illumination control device 3 continuously provides a constant dimming signal (for example, a pulse signal corresponding to a dimming level of 70% and a lighting holding time of 1 minute). Transmit to the luminaire 2. Since the lighting fixture 2 is fixed at 25% when it is absent, the lighting device 2 is lit at a dimming level of 25% until the person detecting unit 4 detects a person, and when the person detecting unit 4 detects a person, the dimming level is 70%. To control.

  The fixture side control unit 204 of the lighting fixture 2 acquires a dimming signal from the lighting control device 3 via the fixture side communication unit 203. When a person in the area is detected by the person detection unit 4, the appliance side detection unit 202 keeps the dimming signal in the lighting state until the elapsed time counted by the timer unit 5 reaches the lighting holding time of the dimming signal. The lamp 201 is controlled to irradiate the area.

  As shown in FIG. 2, the operation unit 35 includes a plurality of push switches 351 and a display unit 352, and is used when a user inputs a current time or a time schedule. The push switch 351 is provided for each operation content, and basic settings such as time schedule control content are performed by the user. The set value is stored in the storage unit 32. The display unit 352 is, for example, a liquid crystal (LCD) display or a 7-segment LED display, and displays input information so that the information input by the user can be confirmed, or displays the current time. To do. The display content of the display unit 352 is controlled by the apparatus-side control unit 34. The operation unit 35 is not limited to the above configuration, and may be a touch panel type liquid crystal display unit (for example, also used as the display unit 352) instead of the push switch 351.

  The backup power source 37 shown in FIG. 1 operates when the main power source 36 is stopped, and is used by the timer unit 31 for timing.

  Next, operation | movement of the illumination control system 1 which concerns on this embodiment is demonstrated using FIG. First, according to the time schedule of the memory | storage part 32 and the present time of the time measuring part 31, the illumination control apparatus 3 sends the dimming signal containing the information of the dimming level (lighting state) at the time of presence, and the information of lighting holding time to a lighting fixture. 2 to send. The lighting fixture 2 acquires a dimming signal from the lighting control device 3. Thereafter, when a person in the area is detected by the person detection unit 4, the appliance-side control unit 204 changes the dimming level of the lamp 201 to the dimming level at the time of existence according to the information of the dimming signal. Thereafter, when the elapsed time counted by the timer unit 5 becomes the lighting holding time of the dimming signal, the appliance-side control unit 204 returns the dimming level of the lamp 201 to the dimming level when absent.

  As an example of use of the lighting control system 1 of the present embodiment, in an office or the like, for example, in the daytime period (excluding the time period for lunch break), the lighting fixture 2 of the system near the window is set to a dimming level lower than usual, During the lunch break, the lighting fixtures 2 of all systems are turned off.

  As described above, the lighting control system 1 according to the present embodiment shortens the lighting holding time in a time zone where there are few people in a predetermined area and increases the lighting holding time in a time zone where there are many people in the area. A schedule is set in advance. Thereby, according to the illumination control system 1 of the present embodiment, a person in the area is detected by the person detection unit 4 while having a simple configuration in which the number of person detection units 4 that detect persons in the area is small. The lighting holding time of the lamp 201 of the lighting fixture 2 can be optimized for each time. As a result, in a time zone where there are few people in the area, the lighting holding time can be shortened and the energy saving effect can be enhanced. On the other hand, in the time zone where there are many people in the area, the lighting holding time is lengthened to prevent frequent lighting and extinguishing, resulting in deterioration of the visual environment and shortening the lamp life. Can be prevented.

  In addition, although the digital dimming signal and digital communication are largely changed from existing products, and the cost is generally increased, according to the lighting control system 1 of the present embodiment, the PWM method that is widely used in Japan is used. By adopting an optical signal, it is economical to use a widespread infrastructure.

(Embodiment 2)
The illumination control system 1 according to the second embodiment is different from the illumination control system 1 according to the first embodiment (see FIG. 1) in that the sensor terminal 6 is provided for each system as shown in FIG. Hereinafter, the illumination control system 1 of the present embodiment will be described with reference to FIGS. In addition, about the component similar to the illumination control system 1 of Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The sensor terminal 6 includes a terminal-side communication unit 601 that communicates with the illumination control device 3, a dimming signal output unit 602 that outputs a dimming signal to the lighting fixture 2, and a terminal-side control unit 603 that controls each unit of the sensor terminal 6. And. The human detection unit 4 and the timer unit 5 of the present embodiment are mounted on the sensor terminal 6 instead of the lighting fixture 2.

  The device-side control unit 34 of the present embodiment controls the lighting state of the lighting fixture 2 for each system via the sensor terminal 6. That is, the apparatus-side control unit 34 transmits the illumination control information regarding “system 1” to the sensor terminal 61, transmits the illumination control information regarding “system 2” to the sensor terminal 62, and transmits the illumination control information regarding “system n”. It transmits to the sensor terminal 6n. In addition, description is abbreviate | omitted about the function similar to the apparatus side control part 34 (refer FIG. 1) of Embodiment 1. FIG.

  RS485 which is digital communication is used for communication between the illumination control device 3 and the sensor terminal 6. The illumination control device 3 transmits information on the lighting holding time in addition to the information on the light control level to the sensor terminal 6, and the sensor terminal 6 that has received the signal controls the lighting holding time after detecting a person. Since the signal line 8 of RS-485 is a bus wiring, the illumination control device 3 adds the address of the sensor terminal 6 and transmits each signal to the sensor terminal 6. The address of the lighting control device 3 may be fixed, for example, No. 1. The lighting control device 3 basically continuously transmits to the sensor terminal 6 the dimming level when present, the dimming level when absent, and the lighting holding time when the lighting mode (day mode, midnight mode, etc.) starts. To do. In addition, in order to improve the reliability of communication, you may transmit regularly (for example, every 1 minute) repeatedly.

  Next, operation | movement of the illumination control system 1 which concerns on this embodiment is demonstrated using FIG. First, according to the time schedule of the memory | storage part 32 and the present time of the time measuring part 31, the illumination control apparatus 3 includes the information of each dimming level (lighting state) at the time of presence and absence, and the information of lighting holding time Information is transmitted to the sensor terminal 6. The sensor terminal 6 acquires illumination control information from the illumination control device 3. After that, when a person in the area is detected by the person detection unit 4, the sensor terminal 6 controls the lamp 201 according to the illumination control information so that the dimming level of the lamp 201 becomes the dimming level at the time of existence. Is output to the luminaire 2. The appliance-side control unit 204 of the lighting fixture 2 changes the dimming level of the lamp 201 to the dimming level at the time of existence according to the dimming signal from the sensor terminal 6. After that, when the elapsed time counted by the timer unit 5 becomes the lighting holding time of the lighting control information, the sensor terminal 6 sends a dimming signal for setting the dimming level of the lamp 201 to the dimming level in the absence. Output to 2. The fixture-side control unit 204 of the lighting fixture 2 returns the dimming level of the lamp 201 to the dimming level in the absence in accordance with the dimming signal from the sensor terminal 6.

(Embodiment 3)
The illumination control system 1 according to the third embodiment is different from the illumination control system 1 according to the first embodiment (see FIG. 1) in that the illumination control device 3 includes a timer unit 5 as illustrated in FIG. Hereinafter, the illumination control system 1 of the present embodiment will be described with reference to FIGS. In addition, about the component similar to the illumination control system 1 of Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The luminaire 2 includes the person detection unit 4 as in the first embodiment. When the person in the area is detected by the human detection unit 4, the lighting fixture 2 outputs a detection result to the lighting control device 3.

  The timer unit 5 of this embodiment is mounted on the illumination control device 3. That is, the lighting control time 3 is managed by the lighting control device 3.

  Next, operation | movement of the illumination control system 1 which concerns on this embodiment is demonstrated using FIG. First, when a person in the area is detected by the human detection unit 4, the lighting fixture 2 transmits the detection result of the human detection unit 4 to the lighting control device 3. When the lighting control device 3 receives the detection result of the human detection unit 4 from the lighting fixture 2, the lighting control device 3 corresponds to the time when the detection result is received according to the time schedule of the storage unit 32 and the current time of the time measuring unit 31. A dimming signal including information on the dimming level is output to the luminaire 2. The fixture-side control unit 204 of the lighting fixture 2 changes the dimming level of the lamp 201 to the dimming level at the time of existence according to the dimming signal from the lighting control device 3. After that, when the elapsed time measured by the timer unit 5 becomes the lighting holding time, the lighting control device 3 includes information on the dimming level in the absence in accordance with the time schedule in the storage unit 32 and the current time in the timing unit 31. A dimming signal is output to the luminaire 2. The fixture-side control unit 204 of the lighting fixture 2 changes the dimming level of the lamp 201 to the dimming level when absent in accordance with the dimming signal from the lighting control device 3.

  As described above, according to the illumination control system 1 of the present embodiment, it is only necessary to provide the timer unit 5 for measuring the elapsed time since the person in the area is detected only in the illumination control device 3, and it is economical. Further, when the area is a room, dimming control with a high degree of freedom can be performed, such as dimming control of the entire room in conjunction with the person detecting unit 4 at the entrance of the room when a person is detected.

(Embodiment 4)
The illumination control system 1 according to the fourth embodiment is different from the illumination control system 1 according to the second embodiment (see FIG. 5) in that the illumination control device 3 includes a timer unit 5 as illustrated in FIG. Hereinafter, the illumination control system 1 of the present embodiment will be described with reference to FIGS. In addition, about the component similar to the illumination control system 1 of Embodiment 2, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The sensor terminal 6 of the present embodiment does not include the timer unit 5, but includes the human detection unit 4 as with the sensor terminal 6 (see FIG. 5) of the second embodiment. In addition, description is abbreviate | omitted about the function similar to the sensor terminal 6 of Embodiment 2. FIG.

  The timer unit 5 of this embodiment is mounted on the illumination control device 3. That is, the lighting control time 3 is managed by the lighting control device 3.

  Next, operation | movement of the illumination control system 1 which concerns on this embodiment is demonstrated using FIG. First, when a person in the area is detected by the person detection unit 4, the sensor terminal 6 outputs a detection result to the illumination control device 3. When the lighting control device 3 receives the detection result from the sensor terminal 6, the lighting control device 3 presents the dimming level at the time of being associated with the time when the detection result is received according to the time schedule of the storage unit 32 and the current time of the time measuring unit 31. Information on the lighting state) is transmitted to the sensor terminal 6. The sensor terminal 6 outputs a dimming signal including information on the dimming level when present to the lighting fixture 2. The appliance-side control unit 204 of the lighting fixture 2 changes the dimming level of the lamp 201 to the dimming level at the time of existence according to the dimming signal from the sensor terminal 6. After that, when the elapsed time measured by the timer unit 5 becomes the lighting holding time, the illumination control device 3 uses the time schedule stored in the storage unit 32 and the current time of the time measuring unit 31 to detect the information on the dimming level in the absence. Transmit to the terminal 6. The sensor terminal 6 outputs a dimming signal including information on the dimming level in the absence to the lighting fixture 2. The appliance-side control unit 204 of the lighting fixture 2 changes the dimming level of the lamp 201 to the dimming level in the absence in accordance with the dimming signal from the sensor terminal 6.

  As described above, according to the illumination control system 1 of the present embodiment, it is only necessary to provide the timer unit 5 for measuring the elapsed time since the person in the area is detected only in the illumination control device 3, and it is economical. Further, when the area is a room, dimming control with a high degree of freedom can be performed, such as dimming control of the entire room in conjunction with the person detecting unit 4 at the entrance of the room when a person is detected.

  As a modification of the third and fourth embodiments, when detecting a person in the absent lighting mode, the person detection unit 4 detects a person in the area in order to shift to the existing lighting mode as soon as possible. In this case, the detection result may be transmitted to the lighting apparatus 2 at the same time as the detection result is transmitted to the lighting control device 3. In the case of this modification, the fixture-side control unit 204 of the lighting fixture 2 performs dimming control of the lamp 201 based on the lighting control information at the time of existence acquired in advance from the lighting control device 3, and is absent from the lighting control device 3. The dimming level at the time of existence is maintained until a dimming signal including lighting control information is received.

  According to the present modification, when a person enters the room in a blinking state or in a dark state and the person detecting unit 4 detects the person, the dimming control from the absence mode to the presence mode requires immediate effect. Even if it exists, communication from the apparatus (lighting fixture 2 or sensor terminal 6) with which the person detection part 4 was mounted to the lighting control apparatus 3, the judgment in the lighting control apparatus 3, and the human detection part 4 from the lighting control apparatus 3 are mounted. The time required for the three steps of communication to the connected device can be reduced. As a result, since immediate effect can be realized, safety can be enhanced.

  As a modification of the second and fourth embodiments, the sensor terminal 6 may include a brightness sensor (not shown) that detects brightness (for example, illuminance, etc.) such as a desk surface or a floor surface. The brightness sensor photoelectrically converts it with a photodiode and amplifies it with an operational amplifier to detect the brightness (illuminance) of the desk surface or floor surface. As the brightness sensor, for example, a photo IC in which a photodiode and an operational amplifier are integrated is used. The sensor terminal 6 performs dimming control on the lighting fixture 2 in consideration of not only the detection result of the human detection unit 4 but also the detection result of the brightness sensor. For example, when the illuminance measured by the brightness sensor is greater than or equal to a preset threshold value, the sensor terminal 6 ignores the detection result of the human detection unit 4 and maintains the absence mode or sets the lighting holding time to normal. Or shorter. The sensor terminal 6 sets the lighting holding time to, for example, 10 minutes when the output of the brightness sensor is in a dark state, and 5 minutes when it is in a bright state.

  According to the present modification, control including the brightness sensor can be performed so that, for example, if the surroundings are bright, the detection result of the human detection unit 4 can be ignored or the lighting holding time can be shortened. Therefore, it is possible to reduce wasteful light output and increase energy saving.

  As a modification of the second and fourth embodiments, the dimming signal output unit 602 may control the lighting state of the lighting fixture 2 by controlling the magnitude of power supplied to the lighting fixture 2.

  As another modification of the second and fourth embodiments, the lighting fixture 2 connected to the sensor terminal 6 is not limited to a single system, and may be further divided into a plurality of subgroups. In the case of this modification, it is only necessary to add not only the system address but also the subgroup address to the illumination control information signal (RS-485 signal).

  As another modification of the second and fourth embodiments, communication between the illumination control device 3 and the sensor terminal 6 is not limited to communication using a dedicated line, and may be communication using infrared rays or radio waves.

  As a modification of the first to fourth embodiments, the lighting control device 3 may be a ceiling-mounted device that is attached to the ceiling when the user can operate the lighting control device 3 with a remote control device (remote control). Good.

  As another modification of the first to fourth embodiments, the dimming signal may be a radio signal using a power line carrier signal or a radio wave instead of a signal by a dedicated signal line.

  In Embodiments 1 to 4, dimming control has been described as control of the lighting state of the lighting fixture 2, but as a modification of Embodiments 1 to 4, the lighting state of the lighting fixture 2 is controlled by the lamp 201 of the lighting fixture 2. Toning control for controlling the color temperature of light emitted from the projector may be used. The toning control is performed instead of the dimming control or together with the dimming control. For example, when the lamp 201 is an RGB-LED, the lighting control device 3 can control the toning of the light emitted from the lamp 201 if the lighting control device 3 transmits information on the dimming level for each color to the lighting fixture 2.

DESCRIPTION OF SYMBOLS 1 Lighting control system 2 Lighting fixture 201 Lamp 204 Appliance side control part 3 Lighting control apparatus 4 Person detection part 5 Timer part 6 Sensor terminal

Claims (8)

A lighting fixture having a lamp that irradiates a preset area and a fixture-side controller that controls the lamp;
A person detecting unit for detecting a person in the region;
A timer unit for measuring the elapsed time from the time when the person in the area is detected by the human detection unit;
The lighting state of the lamp of the luminaire when there is a person in the area and the lighting holding time for holding the lighting state from the time when the person in the area is detected by the person detection unit for each time A lighting control device that controls the lighting state and lighting holding time of the lamp of the lighting fixture according to a time schedule that is associated with
When the person in the area is detected by the person detection unit, the elapsed time measured by the timer unit is determined in the area by the person detection unit according to the time schedule. The lamp is controlled so as to irradiate the region in the lighting state associated with the time schedule until the lighting holding time associated with the time when the person is detected is reached. Control system. The lighting control device outputs a lighting control signal including information of the lighting state and the lighting holding time to the lighting fixture according to the time schedule,
The lighting fixture includes the person detection unit and the timer unit,
The appliance-side control unit of the lighting fixture obtains the illumination control signal from the illumination control device, and when a person in the area is detected by the human detection unit, the elapsed time counted by the timer unit is obtained. The lighting control system according to claim 1, wherein the lamp is controlled to irradiate the region in the lighting state of the lighting control signal until the lighting holding time of the lighting control signal is reached. A sensor terminal having the human detection unit and the timer unit;
The lighting control device outputs lighting control information including information on the lighting state and the lighting holding time to the sensor terminal according to the time schedule,
The sensor terminal acquires the illumination control information from the illumination control device, and when the person in the area is detected by the person detection unit, the illumination for turning the lamp into the lighting state of the illumination control information When the control signal is output to the lighting fixture and the elapsed time counted by the timer unit reaches the lighting holding time of the lighting control information, the lighting control signal for setting the lamp to the original lighting state is sent to the lighting fixture. Output to
The lighting control system according to claim 1, wherein the fixture-side control unit of the lighting fixture controls the lamp according to the lighting control signal from the sensor terminal. The lighting fixture includes the person detection unit, and when a person in the region is detected by the person detection unit, a detection result is output to the lighting control device,
The lighting control device includes the timer unit, and when receiving the detection result from the lighting fixture, for turning on the lighting state at the time of being associated with the time when the detection result is received according to the time schedule. Output the lighting control signal to the lighting fixture, and when the elapsed time counted by the timer unit becomes the lighting holding time, to output the lighting control signal to the lighting fixture in the absence of lighting,
The lighting control system according to claim 1, wherein the fixture-side control unit of the lighting fixture controls the lamp according to the lighting control signal from the lighting control device. A sensor terminal having the human detection unit;
The sensor terminal outputs a detection result to the lighting control device when a person in the area is detected by the human detection unit,
The lighting control device includes the timer unit, and when receiving the detection result from the sensor terminal, according to the time schedule, information on a lighting state at the time of being associated with a time when the detection result is received is Output to the luminaire as a lighting control signal via the sensor terminal, and when the elapsed time counted by the timer unit reaches the lighting holding time, information on the lighting state when absent is used as a lighting control signal via the sensor terminal Output to the luminaire,
The lighting control system according to claim 1, wherein the fixture-side control unit of the lighting fixture controls the lamp according to the lighting control signal from the sensor terminal. When the person detection unit detects a person in the region, the detection result is output to the lighting control device and the lighting fixture,
The lighting control device includes the timer unit, outputs a lighting control signal including information on a lighting state at the time of existence to the lighting fixture according to the time schedule, and receives the detection result from the human detection unit. When the elapsed time becomes the lighting holding time, according to the time schedule, a lighting control signal including information on a lighting state when absent is output to the lighting fixture,
The lighting control system according to claim 1, wherein the fixture-side control unit of the lighting fixture controls the lamp according to the lighting control signal from the lighting control device.   The luminaire receives a dimming signal, which is a pulse signal of a pulse width modulation method, the dimming level corresponding to the duty ratio, and the lighting holding time corresponding to the pulse period, as the lighting control signal. The illumination control system according to any one of claims 2 to 6. A brightness sensor for detecting the brightness of the area;
The lighting control system according to claim 1, wherein the lighting control device controls the length of the lighting holding time according to a detection result of the brightness sensor.

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