Lighting Control System

Abstract

To provide a lighting control system that can be powered by POE, is simply connected to a lighting controller, and can cope with different communication methods.SOLUTION: A lighting control system of the present disclosure includes: a lighting fixture that illuminates a lighting space; at least one lighting control device that controls the lighting fixture; and a terminal instrument with a switch function, provided between the lighting fixture and the lighting control device. Since the terminal instrument with the switch function is connected to the one or more lighting control devices via POE, connection with a lighting controller is simple and different communication methods can be coped with.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to lighting control systems. [Background technology]

[0002] Conventionally, 100V AC was used as the power source for lighting fixtures, and installation of lighting fixtures required the work of an electrician. In recent years, the spread of LEDs has made it possible to supply power at low voltages. Patent Document 1 discloses an LED lighting device powered by POE (abbreviation for Power over Ethernet). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2019-511808 Summary of the Invention [Problem to be solved by the invention]

[0004] The LED lighting device disclosed in the above Patent Document 1 can be powered by POE, but no consideration has been given to connection to a lighting controller or support for different communication methods.

[0005] An object of the present disclosure is to provide a lighting control system that can be powered by POE, can be easily connected to a lighting controller, and can support different communication methods. [Means for solving the problem]

[0006] A lighting control system according to one embodiment of the present disclosure includes a lighting fixture that illuminates a lighting space; A lighting control device that controls the lighting fixture; A terminal device with a switch function provided between the lighting fixture and the lighting control device; A lighting control system comprising: The switch function-equipped terminal device A plurality of wirings including a power line and a signal line One or more of the above lighting devices are connected via a DC power supply wiring. Equipment Connected to And, The lighting control device includes at least one lighting controller, the lighting controller communicates with the switch-equipped terminal through a specific protocol; The lighting control device further includes another lighting control means that communicates with the switch function-equipped terminal device using a protocol different from that of the lighting controller, The signal line is selectively connected to one of a plurality of signals including at least a signal from the lighting controller, a signal from the other lighting control means, or no signal. It is characterized by: Effect of the Invention

[0007] According to an embodiment of the present disclosure, it is possible to provide a lighting control system that can be powered by POE, can be easily connected to a lighting controller, and can support different communication methods. [Brief description of the drawings]

[0008] [Figure 1] 1 is a block diagram of a lighting control system in a first embodiment. [Diagram 2] 2 is a block diagram of a terminal device with a power supply function in the first embodiment. FIG. [Diagram 3] 2 is a block diagram of a terminal device and a lighting fixture according to the first embodiment. FIG. [Figure 4] FIG. 2 is a functional block diagram of a terminal device according to the first embodiment. [Diagram 5] FIG. 2 is a wiring diagram of a LAN cable (POE) in the first embodiment. [Figure 6] FIG. 11 is a block diagram of a communication circuit according to a second embodiment. [Figure 7] FIG. 13 is a wiring diagram of an example when a tester is connected. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, a lighting control system according to an embodiment of the present disclosure will be described in detail with reference to the drawings. However, the following embodiments are merely examples of lighting control systems for embodying the technical ideas of the present disclosure, and the present disclosure is not limited to these, and may be equally applied to other embodiments included in the scope of the claims.

[0010] [Embodiment 1] A lighting control system according to a first embodiment of the present disclosure will be described with reference to Figs. 1 to 4. Fig. 1 is a block diagram of the lighting control system. The lighting control system includes a personal computer 10 (hereinafter referred to as "PC 10"), a lighting controller 11, a relay terminal 12, a wall switch 13, a HUB 14, a terminal A 15, a terminal B 16, a terminal C 17, lighting fixtures 20, an image sensor 21, and an illuminance sensor 22. The lighting control system of the present embodiment is not limited to the configuration of Fig. 1. For example, the number of lighting controllers 11, terminals 15 to 17, and relay terminals is arbitrary, the number of lighting fixtures 20, image sensors 21, and illuminance sensors 22 connected to the terminals 15 to 17 is arbitrary, and the image sensor 21 or the illuminance sensor 22 may be omitted. Alternatively, instead of or in addition to these, a human presence sensor, an illuminance / human presence sensor, etc. may be provided.

[0011] The lighting controller 11 is connected to the PC 10 via the LAN 25, and the lighting controller 11 can be set and controlled by the PC 10. The lighting controller 11 is connected to the relay terminal 12, the wall switch 13, the terminals 15 to 17, etc. via a dedicated line 26. The number of the relay terminals 12, the wall switch 13, and the terminals 15 to 17 can be set appropriately. The dedicated line is a line configured according to the specifications of each manufacturer that produces the lighting fixtures, and lines from different manufacturers are often not compatible. An example of the dedicated line is FBUS from Mitsubishi Electric Lighting Co., Ltd. The terminals 15 to 17 are connected to the PC 10 by the LAN 25 via the HUB 14. The type of LAN is not particularly limited here, but for example, Ethernet can be used. The lighting controller may be called a lighting control device. The lighting controller and PC may be collectively called a lighting control device. The HUB may be called a terminal device with a switch function, and the HUB and terminal may be collectively called a terminal device with a switch function.

[0012] In this embodiment, the dedicated communication line 26 is used as an example of a communication line using a specific protocol, and a LAN consisting of Ethernet is used as an example of communication using a protocol different from that of the lighting controller 11. However, communication using a specific protocol and communication using a different protocol are not limited to this, and any combination may be used.

[0013] Further, although an example has been described in which the HUB 14 is connected to the PC 10 via a LAN, the present embodiment is not limited to this, and the HUB 14 may be configured to be connected to another control device.

[0014] Lighting fixtures 20, image sensors 21, etc. are connected to each of terminals A15, B16, and C17 via LAN cables 27. Any type and number of lighting fixtures 20 may be connected to each of terminals A15, B16, and C17. The image sensors 21 and illuminance sensors 22 are merely examples and may be omitted. Furthermore, instead of or in addition to these, other types of sensors such as a human presence sensor, an illuminance / human presence sensor, etc. may be provided.

[0015] 1 shows three terminals, terminal A15, terminal B16, and terminal C17, but the following will explain terminal A15 as a representative. The other terminals have the same configuration as terminal A15. Also, the following will explain terminal A15 as being connected to lighting fixture 20 and image sensor 21, but this is merely an example, and as described above, for example, sensors other than image sensor 21 may be connected.

[0016] The lighting fixtures 20 and the image sensor 21 are connected to the terminal A15 via a LAN cable 27. For example, a POE (Power over Ethernet, IEEE 802.3af / PoE+ / IEEE 802.3at, also known as PoE++IEEE 802.3bt) can be used as the LAN cable. POE is a specification that supplies power to a connected device using an Ethernet communication cable. Each lighting fixture 20 and image sensor 21 is supplied with power from the terminal A15 via the LAN cable 27.

[0017] The power supply voltage through the LAN cable 27 is 48V DC. Wiring work for 100V AC needs to be performed by an electrician, but wiring work that involves plugging and unplugging the LAN cable 27 can be done by anyone, not just an electrician. Power consumption for lighting devices has been reduced by switching to LEDs, and many devices are sufficient for power supply through a LAN cable. For this reason, by supplying power through a LAN cable, it is possible to simplify the installation work of the lighting system and the work of changing the layout.

[0018] FIG. 2 is a block diagram of the terminal with power supply function. The terminal with power supply function 15 includes a CPU 28, a communication circuit 30, a power supply circuit 31, a relay circuit 29, an RJ45 connector 36, and the like. The communication circuit 30 includes a dedicated communication circuit 45, an EtherNET HUB 46, a switching circuit 44, and the like. The dedicated communication circuit 45 is connected to the lighting controller 11 via a dedicated communication line, and the EtherNET HUB 46 is connected to the HUB 43 via the LAN 25. The power supply circuit 31 is connected to a commercial power source 35. The RJ45 connector 36 is connected to a plurality of lighting fixtures 20, an image sensor 21, and an illuminance sensor 22. The CPU 28 controls at least a protection circuit 33, a switching circuit, a relay circuit, and the like, which will be described later. Although the CPU 28 is omitted in FIG. 3 and FIG. 4, the protection circuit 33, a relay control circuit 50, a communication switching circuit 53, and the like in FIG. 4 are controlled by the CPU 28.

[0019] FIG. 3 is a block diagram of the terminal 15 and the lighting fixture 20. The terminal 15 is provided with a communication circuit 30, a power supply circuit 31, and a relay 34. The communication circuit 30 can switch the communication line to the lighting circuit 20 to any one of the dedicated line 26, the LAN 25, or no data. The LAN cable 27 has a power line 37 and a signal line 38. The communication line selected by the communication circuit 30 is connected to the lighting circuit 20 or the image sensor 21 via the RJ45 connector 36, the signal line 38 of the LAN cable 27, the RJ45 connector 42, and the communication circuit 41. When the lighting fixture 20 has a communication function, one-way or two-way communication with the terminal 15 is possible via the LAN cable 27. Similarly, one-way or two-way communication is possible between the image sensor 21 and the terminal 15 via the LAN cable 27. In this embodiment, the switching of communication circuit 30 is configured with one relay, but if the number of relays provided is equal to the number of lighting fixtures 20, control can be performed for each lighting fixture 20.

[0020] The power supply circuit 31 has a power supply circuit 32 and a protection circuit 33. The power supply circuit 32 is supplied with power from a power supply 35. The power supply 35 is, for example, a commercial power supply, and is not particularly limited, but may be, for example, 100V AC. The power supply circuit 32 converts the power supply voltage, for example, 100V AC, to 48V DC, which is a voltage suitable for the LAN cable 27, and outputs it via the protection circuit 33. The protection circuit 33 monitors the output voltage or current of the power supply circuit, and when it detects an abnormality, for example, in the case of an overcurrent or overvoltage, it stops the power supply by, for example, turning off the relay 34.

[0021] A relay 34 capable of controlling the on / off of power supply is connected to the output side of the power supply circuit 31. The power output from the power supply circuit 31 is supplied to the lighting circuit 20 or the image sensor 21 via the relay 34, the RJ45 connector 36, the power line 37 of the LAN cable 27, the RJ45 connector 42, and the power receiving circuit 40. The RJ45 connector 36 and the RJ45 connector 42 are compliant with the POE standard.

[0022] When POE power is supplied to lighting fixture 20 from terminal device A15, lighting fixture 20 can be turned on by connecting LAN cable 27. Alternatively, when POE power is supplied to lighting fixture 20 from terminal device A15, lighting fixture 20 can also be turned on by connecting dedicated communication line 26. When installing lighting fixtures or changing the layout, installation and layout can be easily performed. In this embodiment, wiring of lighting fixtures can be performed with a simple configuration.

[0023] 4 is a functional block diagram of the terminal A 15. The terminal A 15 includes a power supply circuit 31, a communication circuit 30, a relay control circuit 50, a power supply positive side relay 51, a power supply negative side relay 52, and an RJ45 connector .

[0024] The communication circuit 30 is connected to the dedicated communication line 26 and the LAN 25 from the lighting controller 11. The communication circuit 30 also includes a communication line changeover switch 39 and a communication line changeover circuit 53, and is configured to be able to select any one of the signal lines, the dedicated communication line 26, the LAN 25, or no data, by operating the communication line changeover switch 39 using the communication line changeover circuit 53. The communication line changeover circuit 53 is switched and controlled by a signal from the lighting controller 11. Note that, in the present embodiment, an example has been described in which the communication line changeover circuit 53 is switched and controlled by a signal from the lighting controller 11, but the present embodiment is not limited to this, and for example, the communication line changeover circuit 53 may be switched and controlled by a signal from a LAN.

[0025] The signal line selected in the communication circuit 30 is connected to a signal line 38 of the LAN cable 27 via a DATA terminal of the RJ45 connector 34. The power supply circuit 31 includes a power supply circuit 32 and a protection circuit 33, and converts the voltage of the power supply 35 to a voltage suitable for the LAN cable 27 as described above, and outputs power via the protection circuit 33. The power output from the power supply circuit 31 is supplied to the power supply positive and power supply negative terminals of the RJ45 connector 34 via a relay 34. The type of the relay 34 is not particularly limited, and for example, a double-pole relay consisting of a power supply positive side relay 51 and a power supply negative side relay 52 can be used. The power supply positive side relay 51 and the power supply negative side relay 52 are synchronously controlled to be turned on and off by a relay control circuit 50.

[0026] The relay control circuit 50 is connected to signals from the protection circuit 33 and the dedicated communication line 26. If the protection circuit 33 detects an abnormality in the output of the power supply circuit 32, for example, if it detects an overcurrent or overvoltage, the relay control circuit 50 switches off the power supply positive side relay 51 and the power supply negative side relay 52, thereby protecting the circuit from the power supply abnormality. The relay control circuit 50 is also connected to the lighting controller 11 via the dedicated communication line 26, and can control the on / off of the power supply positive side relay 51 and the power supply negative side relay 52 by signals from the lighting controller 11. In the present embodiment, an example has been described in which the on / off control of the relay 34 by the relay control circuit 50 is performed from the lighting controller 11 via the dedicated communication line 26, but the control of the relay 34 may also be performed via the LAN 25.

[0027] If lighting fixture 20 is equipped with a dimming circuit, lighting fixture 20 can be dimmed between 0% and 100% by a dimming command sent from lighting controller 11 via a dedicated communication line signal or a LAN 25 signal. In the lighting fixture 20, power is sent to a power receiving circuit 40 via a power line 37, and a dimming command is sent to a communication circuit 41 via a signal line 38. When lighting fixture 20 receives a dimming command for 0% dimming, it is turned off but still generates power for standby. By providing relay 34 before power supply output end 36 of power line 37, terminal device A15 can switch between a state in which relay 34 is on and power is sent to lighting device 20, and a state in which relay 34 is off and power to lighting device 20 is stopped. When a command to dim lighting device 20 to 0% is sent, terminal device A15 can turn relay 34 off to suppress standby power consumption by lighting device 20. Furthermore, terminal device A15 can also turn relay 34 off regardless of the dimming command to lighting device 20 to suppress standby power consumption by lighting device 20.

[0028] 5 is a wiring diagram of the LAN cable 27. The LAN cable 27 has a positive power line 55, a negative power line 56, a data line A 57, and a data line B 58. The power supply positive line 55 and the power supply negative line 56 are the power supply lines 37, and the data line A 57 and the data line B 58 are the signal lines 38. The LAN cable 27 is configured by combining the power supply positive line 55, the power supply negative line 56, the data line A 57, and the data line B 58 into one and covering it, and is provided with connectors (not shown) at both ends. These connectors (not shown) at both ends are connected to the terminal device A 15 side connector 36 and the lighting fixture 20 side connector 42, respectively. The connector on the LAN cable 27 side has an outer casing made of a resin material, and can be safely attached when connected to the terminal device A 15 side connector 36 and the lighting fixture 20 side connector 42. Therefore, even workers without special qualifications can perform the installation. In addition, the LAN cable 27 can electrically connect the terminal device A15 and the lighting fixture 20 by fitting the connector on the LAN cable 27 side into the connector 36 on the terminal device A15 side and the connector 42 on the lighting fixture 20 side, and the connection can be made without the need for wiring using tools or the like. In addition, by connecting the terminal device A15 and the lighting fixture 20 with a LAN cable 27, the work of connecting the electric wires that transmit power and the work of connecting the electric wires that transmit signals can be performed simultaneously, making the installation work easier.

[0029] The details of the connection between each wire of the LAN cable 27 and the RJ45 connector 36 on the terminal A 15 side and the RJ45 connector 42 on the lighting fixture 20 side will be described. The positive power line 55 is connected to terminals 4 and 5 of the RJ45 connectors 36, 42 via the connector of the LAN cable 27. The negative power line 56 is connected to terminals 7 and 8 of the RJ45 connectors 36, 42 via the connector of the LAN cable 27. The data line A 57 is connected to terminals 1 and 2 of the RJ45 connectors 36, 42 via the connector of the LAN cable 27. The data line B 58 is connected to terminals 3 and 6 of the RJ45 connectors 36, 42 via the connector of the LAN cable 27. Each wire of the LAN cable 27 uses two ports of the RJ45 connectors 36, 42.

[0030] Corresponding to each wiring, the power supply positive side of the power supply circuit of the terminal 15 is connected to the 4th and 5th terminals of the RJ45 connector 36 so as to correspond to the power supply positive line 55, the power supply negative side of the power supply circuit 31 is connected to the 7th and 8th terminals of the RJ45 connector 36 so as to correspond to the power supply negative line 56, one terminal of the communication circuit 30 is connected to the 1st and 2nd terminals of the RJ45 connector 36 so as to correspond to the data line TX57, and the other terminal of the communication circuit 30 is connected to the 3rd and 6th terminals of the RJ45 connector 36 so as to correspond to the data line RX58. The communication circuits 30, 41 are connected using two data lines, the data line TX57 and the data line RX58.

[0031] On the lighting fixture 20 side, the positive power supply side of the power receiving circuit 40 is connected to terminals 4 and 5 of the RJ45 connector 42 to correspond to the positive power supply line 55, and the negative power supply side of the power receiving circuit 40 is connected to terminals 7 and 8 of the RJ45 connector 42 to correspond to the negative power supply line 56. One terminal of the communication circuit 41 is connected to terminals 1 and 2 of the RJ45 connector 42 to correspond to the data line TX 57, and the other terminal of the communication circuit 41 is connected to terminals 3 and 6 of the RJ45 connector 42 to correspond to the data line RX 58.

[0032] By wiring in this manner, power is supplied from the power supply circuit 31 of the terminal device 15 to the power receiving circuit 41 of the lighting fixture 20 via the power supply positive line 55 and the power supply negative line 56. In addition, the communication circuit 30 of the terminal device 15 and the communication circuit 41 of the lighting fixture are connected by the data line TX 57 and the data line RX 58, and the communication circuit 30 is connected to any one of the signal lines, the dedicated communication line 26, the LAN 25 or no DATA.

[0033] In FIG. 5, one RJ45 connector 36 for the lighting fixture 20 has been described, but the terminal device 15 has multiple connectors 36, and the number is not particularly limited, but can be, for example, four or 4×n (n is a natural number, for example, n=1, 2, 3, 4,...).

[0034] [Embodiment 2] A lighting control system according to a second embodiment of the present disclosure will be described with reference to Fig. 6. Fig. 6 is a block diagram of a communication circuit of the second embodiment. In Fig. 6, the same components as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted. In Fig. 6, the configurations of a switching circuit 44 and a dedicated communication relay 4 are different from those in the first embodiment.

[0035] One contact of the communication line changeover switch 39 and one contact of the power supply changeover switch 47 are connected to the dedicated communication circuit 45 via the dedicated communication relay 48. The other contact of the communication line changeover switch 39 is connected to the HUB 46. The other contact of the power supply changeover switch 47 is connected to the power supply circuit 31 and is supplied with POE power. The dedicated communication relay 48, the power supply changeover switch 47, and the communication line changeover switch 39 are controlled by the CPU 28. The CPU 28 controls the on / off switching of the dedicated communication relay 48, the power supply changeover switch 47, and the communication line changeover switch 39 based on a command by a dedicated communication signal communicated from the lighting controller 11 via the dedicated communication line 26 or a LAN signal communicated from the HUB 43 via the LAN 25.

[0036] The RJ45 connector 36 includes a power supply connector 65 and a communication connector 66. The output of the power supply changeover switch 47 is connected to the power supply connector 65, and the output of the communication line changeover switch 39 is connected to the communication connector 66. The power supply connector 65 is selectively connected to either the 48V POE power supply 31, the dedicated communication circuit 45 when the dedicated communication relay is ON, or no signal when the dedicated communication line is OFF, based on the control of the dedicated communication relay 48 and the power supply changeover switch 47 by the CPU 28. On the other hand, the communication connector 66 is selectively connected to either the HUB 46, the dedicated communication circuit 45 when the dedicated communication relay is ON, or no signal when the dedicated communication line is OFF, based on the control of the dedicated communication relay 48 and the communication line changeover switch 39 by the CPU 28. The power supply connector 65 and the communication connector 66 can be switched between the power supply and the communication line independently via the power supply changeover switch 47 and the communication line changeover switch, respectively, so it is possible to switch only the power supply on and off while keeping the communication line connected. Also, the LAN wiring can be connected to a lighting fixture, an image sensor, or an illuminance sensor at all times, regardless of whether the dedicated communication relay 48 is on or off.

[0037] [Embodiment 3] A lighting control system according to a third embodiment of the present disclosure will be described. When a communication line such as the dedicated communication line 26 or the LAN 25 is not connected to the terminal device 15, the communication line changeover switch 39 of the communication circuit 30 is switched to "no DATA", and no communication line is connected to the data TX and data RX.

[0038] As a modified example, the terminal 15 may be connected to either the dedicated communication line 26 or the LAN 25. In this case, the communication line changeover switch 39 of the communication circuit 30 can be switched to either the dedicated communication line 26 or the LAN 25, or to no DATA.

[0039] [Embodiment 4] A lighting control system according to a fourth embodiment of the present disclosure will be described. To the terminal device 15, not only the lighting fixture 20 but also sensors such as the image sensor 21 and brightness sensor can be connected via the RJ45 connector 36. In this case, as in the first embodiment, power is supplied from the lighting fixture 20 to the image sensor 21 and the like via a LAN cable. The image sensor 21 is capable of detecting people and brightness, and is also capable of calculating illuminance from brightness. The brightness sensor is provided facing the lighting and can detect the brightness around the lighting.

[0040] [Embodiment 5] A lighting control system according to a fifth embodiment of the present disclosure will be described. The lighting control system of this embodiment connects a tester capable of supplying power to the terminal device 15 when temporary wiring is performed. When temporary wiring is performed during construction, the power source 35 is not connected to the terminal device 15. In this case, it is possible to supply power to the terminal device 15 by connecting a tester capable of supplying power to the connector 42.

[0041] At least one of the protection circuit 33 of the power supply circuit 31 or the power supply circuit 32 is configured to be able to detect the connection of a tester, and the power supply circuit 32 is provided with a function to receive power from the tester, so that the terminal device 15 can receive power from the tester. As a result, even if the terminal device 15 is not connected to the power supply 35, the terminal device 15 can receive power from the tester, making it possible to check the wiring and operation of the lighting control system during temporary wiring.

[0042] [Embodiment 6] A lighting control system according to a sixth embodiment of the present disclosure will be described with reference to Fig. 7. Fig. 7 is a wiring diagram of an example when a tester is connected, and the same reference numerals are used for configurations similar to those in Figs. 1 to 6, and descriptions thereof will be omitted.

[0043] 7 shows terminal A15 and terminal B16, which are ceiling 6A relay terminals. A lighting fixture 20, an image sensor 21, and a brightness sensor 22 are connected to terminal A and terminal B, respectively. Terminal A15 and terminal B16 are connected to a lighting controller 25 via a communication line, and are also connected to a HUB or POE-HUB 14 via a LAN.

[0044] When installing the wiring, a wiring check tester 60 can be connected to the HUB 14 to check the connection status of the wiring, and power can be supplied to the LAN terminal of the terminal device from the power supply circuit of the wiring check tester 60. When the tester 60 is connected to the POE-HUB 14, POE power supply is possible, so the wiring status can be checked even during installation before commercial power is connected to each part.

[0045] The above describes a lighting control system according to an embodiment of the present disclosure. However, the above embodiment is an example of a lighting control system for embodying the technical ideas of the present disclosure, and does not limit the present disclosure to these embodiments. The present disclosure may be equally applied to other embodiments, such as modified examples of the embodiments or combinations of the embodiments. [Explanation of symbols]

[0046] 10 PC, 11 lighting controller, 12 relay terminal, 13 switch, 14 HUB, 15 terminal A, 16 terminal B, 17 terminal C, 20 lighting fixture, 21 image sensor, 22 brightness sensor, 25 LAN, 26 dedicated communication line, 27 LAN cable, 28 CPU, 29 relay circuit, 30 communication circuit, 31 power supply circuit, 32 power supply circuit, 33 protection power supply, 34 relay, 35 power supply, 36 connector, 37 power supply line, 38 communication line, 39 communication line changeover switch, 40 power receiving circuit, 41 communication circuit, 42 connector, 43 HUB (POE-HUB), 44 changeover circuit, 45 dedicated communication line, 46 EtherNet HUB, 47 power supply relay, 48 dedicated communication relay, 50 relay control circuit, 51 power supply positive side relay, 52 power supply negative side relay, 53 communication line changeover circuit, 54 Communication line changeover switch, 55 power supply positive line, 56 power supply negative line, 57 data line TX, 58 data line RX, 60 tester, 65 power supply connector, 66 communication connector.

Claims

1. A lighting fixture for illuminating the lighting space; A lighting control device that controls the lighting fixture; A terminal device with a switch function provided between the lighting fixture and the lighting control device; A lighting control system comprising: The switch function-equipped terminal device is connected to one or more of the lighting fixtures via a DC power supply wiring having a plurality of wirings including a power line and a signal line, The lighting control device includes at least one lighting controller, the lighting controller communicating with the switch function-equipped terminal through a specific protocol; The lighting control device further includes another lighting control means that communicates with the switch function-equipped terminal device using a protocol different from that of the lighting controller, A lighting control system in which one signal is selectively connected to the signal line from among a plurality of signals including at least a signal from the lighting controller, a signal from the other lighting control means, or no signal.

2. 2. The lighting control system according to claim 1, wherein the switch function-equipped terminal device has a relay capable of turning on / off the power supply to the DC power supply wiring.

3. 3. The lighting control system according to claim 2, wherein the relay is capable of turning on / off the power supply from the power supply line, and the signal line is not provided with the relay.

4. 4. A lighting control system according to claim 2 or 3, wherein the relay is controlled by the lighting controller.

5. A lighting control system described in any one of claims 1 to 4, wherein a sensor can be connected to the terminal device with switch function via the DC power supply wiring.

6. A lighting control system as described in any one of claims 1 to 5, wherein a wiring confirmation tester can be connected to the terminal device with switch function via the DC power supply wiring.

7. 7. The lighting control system according to claim 6, wherein the wiring check tester is capable of supplying power to a terminal device with a switch function.

8. The lighting control system according to any one of claims 1 to 7, wherein the DC power supply wiring is POE.

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