JP2024027595A - Lighting fixture and lighting control system - Google Patents

Abstract

To provide a lighting fixture and a lighting control system that make it easy to grasp the status of the lighting fixture.SOLUTION: A lighting fixture according to the present disclosure includes a light source, a lighting device that turns on the light source, and a dimming circuit that receives power and a control signal from the outside via one communication cable and supplies power to the lighting device. The dimming circuit stops supplying power to the lighting device in response to the control signal or a signal from the lighting device.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD This disclosure relates to lighting fixtures and lighting control systems.

Patent Document 1 discloses a lighting control system that includes a monitoring terminal and a control terminal. The monitoring terminal is connected to the transmission line and outputs a control signal that changes the light output of the luminaire. The control terminal device receives a control signal from the transmission line, calculates and generates a dimming signal according to the control signal, and outputs the signal to the lighting equipment. Furthermore, the control terminal is configured to cause the power switching means to cut off the supply of power to the luminaire when the dimming signal is below a preset dimming rate that causes the light output of the luminaire to be reduced to a low level. control.

Japanese Patent Application Publication No. 2006-185601

In Patent Document 1, the power supply to the lighting equipment is cut off by a relay serving as a power supply opening/closing means. If the lighting equipment and the control terminal are communicating, cutting off the power supply to the lighting equipment will interrupt the communication between the lighting equipment and the control terminal. For this reason, there is a possibility that the control terminal device will not be able to grasp the status of the lighting equipment.

The present disclosure has been made in order to solve the above-mentioned problems, and aims to provide a lighting fixture and a lighting control system that make it easy to understand the status of the lighting fixture.

A lighting fixture according to the present disclosure includes a light source, a lighting device that lights the light source, and a dimmer circuit that receives power and a control signal from the outside via one communication cable and supplies power to the lighting device. The dimmer circuit stops supplying power to the lighting device in response to the control signal or a signal from the lighting device.

A lighting control system according to the present disclosure includes: a lighting fixture; a power feeding device that provides power and a control signal to the lighting fixture via one communication cable; a lighting controller that transmits a control signal to control the lighting equipment; the lighting equipment includes a light source; a lighting device that lights the light source; and a lighting device that receives power from the power supply device and the lighting equipment via the communication cable. a dimmer circuit that receives a control signal and supplies power to the lighting device, and the dimmer circuit instructs the power supply device to stop supplying power to the dimmer circuit after turning off the light source. do.

In the lighting fixture according to the present disclosure, the dimming circuit stops supplying power to the lighting device in response to a control signal or a signal from the lighting device. Since the dimmer circuit continues to operate even after the power supply to the lighting device is stopped, the status of the lighting equipment can be monitored from the outside via the communication cable. Therefore, it is easy to understand the status of the lighting equipment.
In the lighting control system according to the present disclosure, after the light control circuit turns off the light source, the light control circuit instructs the power supply device to stop supplying power to the light control circuit. For this reason, there is a period in which the dimming circuit is in operation after the light source is turned off, and the state of the lighting fixture can be ascertained from the outside during this period. Therefore, it is easy to understand the status of the lighting equipment.

1 is a block diagram showing the configuration of a lighting control system according to Embodiment 1. FIG. 1 is a block diagram showing the configuration of a lighting controller according to Embodiment 1. FIG. 1 is a block diagram showing the configuration of a power supply device according to Embodiment 1. FIG. 1 is a block diagram showing the configuration of a lighting fixture according to Embodiment 1. FIG.

A lighting fixture and a lighting control system according to the present embodiment will be described with reference to the drawings. Identical or corresponding components may be given the same reference numerals and repeated descriptions may be omitted.

Embodiment 1.
FIG. 1 is a block diagram showing the configuration of a lighting control system 100 according to the first embodiment. The lighting control system 100 includes a lighting fixture 4 , a power supply device 3 that provides power and control signals to the lighting fixture 4 via a communication line 8 , a lighting controller 1 , and a setting device 2 . The lighting controller 1 transmits a control signal to the lighting equipment 4 via the power supply device 3 and the communication lines 7 and 8 to control the lighting equipment 4.

The setting device 2 is used for various settings or operations by an operator. The setting device 2 communicates with the lighting controller 1 via a communication line 6. The functions of the setting device 2 are realized, for example, by software on a PC (Personal Computer). In FIG. 1, one lighting fixture 4 is connected to one power supply device 3. The present invention is not limited to this, and a plurality of lighting fixtures 4 may be connected to one power supply device 3.

FIG. 2 is a block diagram showing the configuration of the lighting controller 1 according to the first embodiment. The lighting controller 1 includes a communication section 11, a control section 12, a storage section 13, a timer 14, and a power supply section 15. The control unit 12 performs calculations for realizing the functions of the lighting controller 1 and calculations necessary for controlling the lighting equipment 4. The control unit 12 is, for example, a processor. The communication unit 11 uses the communication lines 6 and 7 to transmit and receive signals. The communication lines 6 and 7 are, for example, LAN (Local Area Network) cables for performing Ethernet (registered trademark) communication.

The storage unit 13 stores setting values related to lighting control set by the operator using the setting device 2, for example. Further, the storage unit 13 responds with the saved setting values in response to a request from the control unit 12. The storage unit 13 is, for example, a nonvolatile memory. The timer 14 manages time for control by the lighting controller 1. Using the timer 14, the control unit 12 can schedule and control the dimming state of the lighting fixture 4. The power supply section 15 generates power for each section of the lighting controller 1.

FIG. 3 is a block diagram showing the configuration of the power supply device 3 according to the first embodiment. The power supply device 3 includes a control section 31, a communication section 32, and a power supply section 33. The communication unit 32 receives a signal from the communication unit 11 of the lighting controller 1 via the communication line 7 to instruct the lighting equipment 4 to dim or the like. The control unit 31 processes the signal received by the communication unit 11. The control unit 31 is, for example, a processor. The control unit 31 relays a control signal addressed to the lighting fixture 4 among the signals received by the communication unit 32 to the lighting fixture 4 via the communication unit 32 and the communication line 8. Further, the control unit 31 controls the power supply unit 33 according to the signal received by the communication unit 32, and controls the power supplied to the communication unit 32. The communication unit 32 receives power from the power supply unit 33 and supplies power to the lighting fixture 4 via the communication line 8 .

In this way, the power supply device 3 provides power and control signals to the lighting fixture 4 via the communication line 8, which is one communication cable. As a method for performing communication and power supply using one communication line 8, for example, Power Over Ethernet can be used. The power supply device 3 of this embodiment is, for example, a Power Over Ethernet hub.

FIG. 4 is a block diagram showing the configuration of the lighting fixture 4 according to the first embodiment. The lighting fixture 4 includes a dimming unit 41 , a lighting device 42 that lights up a light source section 43 , and a light source section 43 . The light control unit 41 includes a light control section 411 , a communication section 412 , a power supply section 413 , and a control power supply 414 . Further, the lighting device 42 includes a light source control section 421, a filter circuit 422, a lighting circuit 423, and a control power source 424.

The light control unit 41 has both the function of a power receiving device and the light control function of a lighting device. The dimming unit 41 receives power and a control signal from the power supply device 3 via the communication line 8 and supplies power to the lighting device 42 . The communication unit 412 receives a signal through the communication line 8 and is supplied with power. The communication unit 412 supplies power supplied via the communication line 8 to the power supply unit 413 and the control power supply 414. Further, the communication unit 412 transmits a signal received through the communication line to the dimming control unit 411.

The power supply section 413 supplies the power supplied from the communication section 412 to the lighting device 42 via the power supply line 9 . Control power supply 414 is connected between communication section 412 and power supply section 413. The control power source 414 generates power for driving the dimming control section 411 from the power supplied from the communication section 412. The dimming control unit 411 transmits a dimming signal for dimming the lighting fixture 4 to the lighting device 42 via the signal line 10 in accordance with the control signal for lighting control received by the communication unit 412. . Further, the dimming control unit 411 monitors the state of the lighting device 42 via the signal line 10. The light control unit 411 is, for example, a processor.

The dimming control section 411 controls the power supply section 413 and controls the power supplied to the lighting device 42 . The dimming control unit 411 can control the power supply unit 413 to stop power supply to the lighting device 42, for example, in response to a control signal from the power supply device 3 or a signal from the lighting device 42.

The lighting device 42 controls the power supplied to the light source section 43 based on the power supply from the power line 9 and the dimming signal from the signal line 10 . The filter circuit 422 removes noise, for example, and invalidates the polarity of the power supply from the power supply unit 413. The control power source 424 generates power for the light source control section 421 from the power supplied from the dimming unit 41. The lighting circuit 423 converts the DC voltage supplied from the filter circuit 422 into a voltage supplied to the light source section 43. When the light source section 43 is an LED, the lighting circuit 423 controls the current flowing through the LED with a constant current, for example. Further, the lighting circuit 423 detects an open failure, a short circuit failure, etc. of the light source section 43 and feeds it back to the light source control section 421. The light source control section 421 stores the state of the light source section 43 according to the voltage or current fed back from the lighting circuit 423.

The light source control section 421 communicates with the dimming unit 41 and controls the brightness of the light source section 43 according to a dimming signal from the dimming unit 41. Further, upon receiving a monitor signal for checking the state of the light source section 43, the light source control section 421 responds to the dimming unit 41 with the state of the light source section 43. The light source control unit 421 is, for example, a processor.

The dimming control section 411 of the dimming unit 41 controls the power supply section 413 according to the signal received from the power supply device 3, and controls the power supply to the lighting device 42. For example, when the dimming control unit 411 receives a power supply stop signal or a light-off signal instructing to turn off the light source unit 43 as a control signal from the power supply device 3, the dimming control unit 411 stops power supply to the lighting device 42. Thereby, standby power of the lighting device 42 can be reduced. Furthermore, even when the power supply unit 413 stops supplying power to the lighting device 42 , the control power supply 414 continues to generate power for the dimming control unit 411 by supplying power from the communication unit 412 . Therefore, the light control unit 41 can communicate with the power supply device 3 via the communication line 8 . In the present embodiment, even after the power supply to the lighting device 42 is stopped, the dimming unit 41 continues to operate, so that communication between the lighting fixture 4 and the power supply device 3 can be maintained. Therefore, the status of the lighting fixture 4 can be grasped from the outside via the communication line 8, and the status of the lighting fixture 4 can be easily grasped.

Further, when the light control unit 411 is notified of an abnormality in the light source unit 43 by the light source control unit 421 as a response to the monitor signal, the dimming control unit 411 controls the power supply unit 413 to stop supplying power to the lighting device 42 . Thereby, the lighting circuit 423 can be stopped in the event of an abnormality, so the lighting device 42 can be safely controlled. Further, wasteful power consumption that occurs when the light source section 43 is in an abnormal state can be reduced.

Next, a procedure for turning off the lighting fixture 4 from the lighting controller 1 in the lighting control system 100 according to the present embodiment will be described. First, the lighting controller 1 transmits a lights-off signal to the power supply device 3 as a control signal. The power supply device 3 relays the received light-off signal to the lighting fixture 4. When the dimming control section 411 of the lighting fixture 4 receives the lights-off signal, it transmits a dimming signal to the light source control section 421 to gradually reduce the brightness of the light source section 43 by fade control. After performing the fade control, the dimming control unit 411 transmits a light-off instruction as a dimming signal to the light source control unit 421 to turn off the light source unit 43.

The dimming control unit 411 transmits a dimming signal to the lighting device 42 in response to the lights-off signal to turn off the light source unit 43, and then controls the power supply unit 413 to stop supplying power to the lighting device 42. At this time, power is still being supplied to the dimming control unit 411.

After the light source unit 43 has been turned off and the power supply to the lighting device 42 has been stopped, the dimming control unit 411 transmits an instruction to the power supply device 3 to stop power supply to the lighting fixture 4 . When receiving the instruction to stop power supply from the lighting fixture 4, the power supply device 3 stops power supply to the lighting fixture 4. In this way, the power supply device 3 stops supplying power to the light control unit 41 after the power supply from the light control unit 41 to the lighting device 42 stops. Thereby, the power supply to the dimming control unit 411 is stopped, and the standby power of the lighting fixture 4 can be reduced.

Next, a procedure for operating the lighting fixture 4 from the lighting controller 1 in the lighting control system 100 according to the present embodiment will be described. First, the lighting controller 1 transmits a power supply start instruction to the power supply device 3. Upon receiving the power supply start instruction from the lighting controller 1, the power supply device 3 starts supplying power to the lighting fixture 4. Power is thereby supplied to the lighting fixture 4. At this time, the lighting fixture 4 is activated, for example, in a dimmed state when the power supply is stopped. As a result, the lighting fixture 4 is turned off at the start of power supply.

Next, the lighting controller 1 transmits a lighting signal that instructs the power supply device 3 to turn on the light source section 43 as a control signal. The power supply device 3 relays the received lighting signal to the lighting fixture 4. Upon receiving the lighting signal, the dimming control unit 411 controls the power supply unit 413 to start supplying power to the lighting device 42 . Further, the dimming control section 411 transmits a dimming signal to the light source control section 421 to turn on the light source section 43. The light source control unit 421 lights up the light source unit 43 by controlling the power supplied to the light source unit 43 from the lighting circuit 423.

The above control allows the lighting controller 1 to turn on or off the lighting fixture 4. In the lighting control system 100 according to the present embodiment, the light control unit 41 turns off the light source section 43 and then instructs the power supply device 3 to stop supplying power to the light control unit 41. For this reason, there is a period in which the light control unit 41 is operating after the light source section 43 is turned off, and the state of the lighting fixture 4 can be ascertained from the outside during this period. Therefore, it is easy to understand the status of the lighting fixture 4.

In the lighting fixture 4 according to the first embodiment, the dimming unit 41 and the lighting device 42 are each integrated into a unit, and connected by a power line 9 and a signal line 10. As a modification of this example, the dimming unit 41 and the lighting device 42 may be integrated. In this case, the power line 9 and signal line 10 can be omitted. Furthermore, the number of cases that house the circuit boards of the dimming unit 41 and the lighting device 42 can be reduced. In this way, the light control unit 41 may be a light control circuit that is not unitized.

On the other hand, if the dimmer unit 41 and the lighting device 42 are separated as in the lighting fixture 4, the mounting positions of the dimmer unit 41 and the lighting device 42 can be freely selected according to the shape or size of the lighting fixture 4. can. In particular, it is desirable that the communication section 412 of the light control unit 41 be placed in a position that can be easily accessed by the contractor or the user. Improved flexibility in mounting location makes construction easier.

Note that the technical features described in this embodiment may be used in combination as appropriate.

Hereinafter, various aspects of the present disclosure will be collectively described as supplementary notes.
(Additional note 1)
a light source and
a lighting device that lights up the light source;
a dimmer circuit that receives power and control signals from the outside via one communication cable and supplies power to the lighting device;
Equipped with
The lighting equipment, wherein the dimming circuit stops supplying power to the lighting device in response to the control signal or a signal from the lighting device.
(Additional note 2)
The lighting device according to appendix 1, wherein the dimming circuit stops supplying power to the lighting device when receiving a lights-off signal instructing to turn off the light source as the control signal.
(Additional note 3)
According to supplementary note 2, the dimming circuit, upon receiving the lights-off signal, transmits a dimming signal to the lighting device to turn off the light source, and then stops power supply to the lighting device. Lighting equipment as described.
(Additional note 4)
4. The lighting fixture according to any one of Supplementary Notes 1 to 3, wherein the dimmer circuit stops supplying power to the lighting device when notified of an abnormality in the light source by the lighting device.
(Appendix 5)
When the dimming circuit receives a lighting signal instructing lighting of the light source as the control signal, it starts supplying power to the lighting device, and transmits a dimming signal to the lighting device to light the light source. The lighting device according to any one of Supplementary Notes 1 to 4, characterized in that:
(Appendix 6)
The lighting equipment described in any one of Supplementary Notes 1 to 5,
a power supply device that supplies power to the dimming circuit via the communication cable;
Equipped with
The lighting control system is characterized in that the power supply device stops supplying power to the dimmer circuit after the power supply from the dimmer circuit to the lighting device stops.
(Appendix 7)
lighting equipment and
a power supply device that provides power and control signals to the luminaire via one communication cable;
a lighting controller that controls the lighting equipment by transmitting the control signal to the lighting equipment via the power supply device and the communication cable;
Equipped with
The lighting equipment is
a light source and
a lighting device that lights up the light source;
a dimmer circuit that receives power and the control signal from the power supply device via the communication cable and supplies power to the lighting device;
Equipped with
The lighting control system is characterized in that the dimmer circuit instructs the power supply device to stop power supply to the dimmer circuit after turning off the light source.
(Appendix 8)
After starting power supply to the dimmer circuit, the power supply device transmits a lighting signal that instructs to turn on the light source as the control signal, and transmits a turn-off signal that instructs to turn off the light source as the control signal. 8. The lighting control system according to appendix 7, wherein power supply to the dimmer circuit is subsequently stopped.

1 Lighting controller, 2 Setting device, 3 Power supply device, 4 Lighting equipment, 6 to 8 Communication line, 9 Power line, 10 Signal line, 11 Communication section, 12 Control section, 13 Storage section, 14 Timer, 15 Power supply section, 31 control unit, 32 communication unit, 33 power supply unit, 41 dimming unit, 42 lighting device, 43 light source unit, 100 lighting control system, 411 dimming control unit, 412 communication unit, 413 power supply unit, 414 control power supply, 421 light source control part, 422 filter circuit, 423 lighting circuit, 424 control power supply

Claims (8)

a light source and
a lighting device that lights up the light source;
a dimmer circuit that receives power and control signals from the outside via one communication cable and supplies power to the lighting device;
Equipped with
The lighting equipment, wherein the dimming circuit stops supplying power to the lighting device in response to the control signal or a signal from the lighting device. The lighting fixture according to claim 1, wherein the dimming circuit stops supplying power to the lighting device when receiving a lights-off signal instructing to turn off the light source as the control signal. 2. The dimming circuit, upon receiving the lights-off signal, transmits a dimming signal to the lighting device to turn off the light source, and then stops power supply to the lighting device. Lighting equipment described in. The lighting device according to any one of claims 1 to 3, wherein the dimmer circuit stops supplying power to the lighting device when notified of an abnormality in the light source from the lighting device. . When the dimming circuit receives a lighting signal instructing lighting of the light source as the control signal, it starts supplying power to the lighting device, and transmits a dimming signal to the lighting device to light the light source. The lighting fixture according to any one of claims 1 to 3, characterized in that: The lighting fixture according to any one of claims 1 to 3,
a power supply device that supplies power to the dimming circuit via the communication cable;
Equipped with
The lighting control system is characterized in that the power supply device stops supplying power to the dimmer circuit after the power supply from the dimmer circuit to the lighting device stops. lighting equipment and
a power supply device that provides power and control signals to the luminaire via one communication cable;
a lighting controller that controls the lighting equipment by transmitting the control signal to the lighting equipment via the power supply device and the communication cable;
Equipped with
The lighting equipment includes:
a light source and
a lighting device that lights up the light source;
a dimmer circuit that receives power and the control signal from the power supply device via the communication cable and supplies power to the lighting device;
Equipped with
The lighting control system is characterized in that the dimmer circuit instructs the power supply device to stop supplying power to the dimmer circuit after turning off the light source. After starting power supply to the dimmer circuit, the power supply device transmits a lighting signal that instructs to turn on the light source as the control signal, and transmits a turn-off signal that instructs to turn off the light source as the control signal. 8. The lighting control system according to claim 7, wherein power supply to the dimmer circuit is subsequently stopped.

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