JP2016181452A - Illumination control system, illumination device, and illumination control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an illumination control system capable of facilitating installation of a plurality of illumination devices to be connected in series, illumination devices, and an illumination control method.SOLUTION: An illumination control system according to an embodiment comprises an illumination control device which controls illumination devices, a plurality of first illumination devices, and second illumination devices different from the first illumination devices. The plurality of first illumination devices are connected in series to the illumination control devices. The second illumination devices are connected to the first illumination devices. The illumination control device outputs a control signal along DMX512 to the first illumination device. The first illumination device includes a first illumination unit, a first transmission unit, a conversion unit, and an output unit. The first illumination unit illuminates an arbitrary position according to a control signal. The first transmission unit transmits the control signal to other first illumination devices. The conversion unit converts the control signal to a PWM signal. The output unit outputs the PWM signal to the second illumination device.SELECTED DRAWING: Figure 2

Description

  Embodiments described herein relate generally to a lighting control system, a lighting device, and a lighting control method.

  Conventionally, lighting effects have been made by a plurality of lighting devices in a studio, a stage, or the like. And the illumination control system which remotely controls the illumination intensity of each illumination apparatus, the color of the light to illuminate, etc. using the control address set to each illumination apparatus side is introduced.

  As such an illumination control system, an illumination control system for controlling each illumination device in accordance with a standard called DMX512 (hereinafter referred to as DMX) is known. In a lighting control system that controls lighting devices in accordance with the DMX standard, a plurality of lighting devices are connected in series from the lighting control device, and each lighting device sequentially transmits control signals output from the lighting control device to the subsequent lighting devices. By doing so, it is possible to control each lighting device.

  However, in the above-described conventional technology, 32 or more lighting devices cannot be connected in series due to the specification of the DMX standard. When 32 or more lighting devices are connected in series, a buffer, a splitter, or the like is not provided. Therefore, there is a problem that it takes time to install the lighting device.

JP 2014-137949 A

  The problem to be solved by the present invention is to provide an illumination control system, an illumination device, and an illumination control method that facilitate installation of the illumination device when a plurality of illumination devices are connected in series.

  An illumination control system according to an example of the embodiment is an illumination control system including an illumination control device that controls an illumination device, a plurality of first illumination devices, and a second illumination device that is different from the first illumination device. Here, the plurality of first lighting devices are connected in series with the lighting control device. The second lighting device is connected to the first lighting device. The lighting control device outputs a control signal along the DMX 512 to the first lighting device. Such a 1st illuminating device has a 1st illumination part, a 1st transmission part, a conversion part, and an output part. The second lighting device includes a second lighting unit. The first illumination unit illuminates an arbitrary position according to the control signal. The first transmission unit transmits the control signal to another first lighting device. The conversion unit converts the control signal into a PWM signal. The output unit outputs the PWM signal to the second lighting device. The second illumination unit illuminates an arbitrary position according to the PWM signal output from the first illumination device.

  When the lighting control system according to an example of the embodiment and a plurality of lighting devices are connected in series, installation work of the lighting device can be facilitated.

FIG. 1 is a block diagram illustrating an example of a configuration of a lighting control system according to the embodiment. FIG. 2 is a block diagram illustrating an example of a functional configuration of each apparatus according to the embodiment. FIG. 3 is a diagram for explaining an example of the outer shape of a lighting device that converts a control signal into a PWM signal and outputs the PWM signal. FIG. 4 is a diagram illustrating an example of the external shape of a lighting device that controls lighting according to a PWM signal. FIG. 5 is a flowchart illustrating an example of processing executed by a lighting device that converts a control signal into a PWM signal in the lighting control system according to the embodiment.

  Hereinafter, an illumination control system, an illumination device, and an illumination control method according to embodiments will be described with reference to the drawings. In the embodiment, configurations having the same functions are denoted by the same reference numerals, and redundant description is omitted. Note that the illumination control system, the illumination device, and the illumination control method described in the following embodiments are merely examples, and do not limit the embodiments. For example, in the following embodiments, the lighting control system can be applied to control of any stage apparatus other than the lighting apparatus. The following embodiments may be appropriately combined within a consistent range.

  The lighting control system 1 according to the following embodiment includes a lighting control device 30, a plurality of lighting devices 20 (for example, 20-1 to 20-n), and a lighting device 10 different from the lighting device 20. The plurality of lighting devices 20 are connected in series with the lighting control device 30. In addition, the lighting device 10 is connected in series to any one of the lighting devices 20. Further, the illumination control device 30 outputs a control signal along the DMX 512 to the illumination device 20. The illumination device 20 includes an illumination unit that illuminates an arbitrary position (for example, the light source unit 25-1), a transmission unit (first transmission unit) 26-1 that transmits a control signal to another illumination device 20, and a control signal. Is converted into a PWM signal, and an output unit 23-1 that outputs the PWM signal to the lighting device 10. Moreover, the illuminating device 10 has the illumination part (for example, light source part 13-1) which performs illumination according to a PWM signal.

  Moreover, the illumination control system 1 includes a plurality of illumination devices 10 (for example, 10-1 to 10-n) connected in series from the illumination device 20. And the illuminating device 10 has a transmission part (for example, transmission part 14-1) which transmits a PWM signal to the other illuminating device 10. FIG.

  The lighting control system 1 also includes a first power transmission unit (for example, an outlet 29-1) that transmits the power supplied from the power supply device to the lighting device 10, and the lighting device 10 includes the lighting device. It has the 2nd electric power transmission part (for example, outlet 17-1) which transmits the electric power transmitted from 20 to the other lighting equipment 10. FIG.

[Embodiment]
(Configuration of Lighting Control System According to Embodiment)
FIG. 1 is a block diagram illustrating an example of a configuration of a lighting control system according to the embodiment. The lighting control system 1 according to the embodiment includes a plurality of lighting devices 10 (10-1 to 10-n: second lighting devices), a plurality of lighting devices 20 (20-1 to 20-n: first lighting devices), and The lighting control device 30 is included. Note that the types and number of the lighting devices 10 and the lighting devices 20 connected to the lighting control system 1 can be arbitrarily set.

  In the illumination control system 1, the illumination device 10 is an illumination device that performs illumination based on the control content indicated by a PWM (Pulse Width Modulation) signal, and outputs, for example, a semiconductor light emitting element such as an LED (Light Emitting Diodes). Lighting effects such as studios and stages are performed by changing the illuminance, color, and the like of light according to the control content indicated by the PWM signal. As a specific example, the lighting device 10 is a lighting device such as a horizontal light that is installed on the floor or ceiling of the stage and produces a background color on the stage. Good.

  In the lighting control system 1, the lighting device 20 can perform two-way communication with the lighting control device 30 using a communication protocol that complies with the DMX standard or a communication method that complies with the RDM (Remote Device Management) standard that extends DMX. It is connected to the lighting device 20 directly or via a transmission device that relays communication, a baton device that is a long device in which the lighting device 20 is installed, and the like. The lighting device 20 is a lighting device that has a semiconductor light emitting element such as an LED and performs lighting effects such as a studio or a stage by changing the illuminance, range, color, illumination position, and the like according to a control signal. .

  When receiving an operation command for the lighting device 20 from the operator, the lighting control device 30 generates a control signal including a control address set in the lighting device 20 and outputs the control signal to the lighting device 20. For example, a control address for controlling the lighting device 20 is set in advance in the lighting device 20. In such a case, the lighting control device 30 outputs a control signal in accordance with the DMX standard indicating the control address of the lighting device 20 and the control content of the lighting. On the other hand, when the lighting device 20 receives a control signal indicating the control address set in itself, the lighting device 20 changes the lighting mode according to the control content indicated by the control signal.

(Setting process executed by the lighting control system according to the embodiment)
Here, in the communication method according to the DMX standard or the RDM standard, a connection mode in which a plurality of lighting devices are connected in series and a control signal is sequentially transmitted to each lighting device, that is, a serial or daisy chain connection mode is recognized. Yes. However, when each lighting device sequentially transmits a control signal, the signal is attenuated by resistance, or because of restrictions by electronic components such as an IC (Integrated Circuit) that performs communication in accordance with the DMX standard or RDM standard, The number of lighting devices that can be connected to is limited to 32.

  For this reason, conventionally, when 32 or more lighting devices are connected, a control signal is amplified by installing a buffer, a splitter, or the like in the connection path. However, this method increases the time and labor of installing buffers and splitters and the like. In the RDM standard, the lighting control device and the lighting device can perform bidirectional communication, but a buffer, a splitter, and the like corresponding to the RDM standard must be prepared. In addition, when the lighting device is controlled according to a standard in which the number of lighting devices that can be connected in series is larger than the DMX standard, it is necessary to newly prepare a lighting control device and a lighting device that comply with the standard.

  Therefore, the illumination control system 1 according to the present application has the following configuration. For example, the lighting control system 1 includes a lighting control device 30 that controls the lighting devices 10 and 20, a plurality of lighting devices 20-1 to 20-n connected in series from the lighting control device 30, and a lighting device 20-1. It is a lighting apparatus connected to -20-n, and the lighting apparatus 20 includes a plurality of individual lighting apparatuses 10-1 to 10-n. Moreover, the illuminating devices 10-1 to 10-n are connected in series from any of the illuminating devices 20-1 to 20-n.

  For example, in the example illustrated in FIG. 1, each of the lighting devices 20-1 to 20-n is connected in series from the lighting control device 30. Moreover, in the example shown in FIG. 1, each illuminating device 10-1 to 10-n is connected in series from the illuminating device 20-1 to 20-n. For example, the lighting devices 10-1 to 10-3 are connected in series from the lighting device 20-1, and the lighting devices 10-4 to 10-7 are connected in series from the lighting device 20-2. The illumination devices 10-8 to 10-10 are connected in series from the illumination device 20-3, and the illumination device 10-n is connected to the illumination device 20-n.

  In the following description, of the two lighting devices connected to a certain lighting device, the lighting device that is the signal transmission source is described as the preceding lighting device, and the lighting device that is the transmission destination of the control signal is the latter lighting device. It is described as lighting equipment. For example, the lighting device 10-1 is a lighting device upstream of the lighting device 10-2, and the lighting device 10-3 is a lighting device downstream of the lighting device 10-2.

  Based on such a configuration, the lighting control device 30 outputs a control signal in accordance with the DMX standard to the lighting device 20. On the other hand, each of the lighting devices 20-1 to 20-n sequentially transmits the control signal received from the lighting control device 30 to the subsequent lighting devices 20-2 to 20-n. For example, the lighting device 20-1 transmits the control signal received from the lighting control device 30 to the lighting device 20-2, and the lighting device 20-2 receives the control signal received from the lighting device 20-1. 3 is transmitted.

  The lighting device 20 illuminates an arbitrary position according to the control signal, converts the received control signal into a PWM signal, and outputs the converted PWM signal to the lighting device 10. The lighting device 10 transmits the received PWM signal to the subsequent lighting device 10 and illuminates an arbitrary position according to the received PWM signal.

  For example, the lighting device 20-1 transmits a control signal received from the lighting control device 30 to the lighting device 20-2, converts the control signal into a PWM signal, and outputs the PWM signal to the lighting device 10-1. . In such a case, the lighting devices 10-1 to 10-3 sequentially transmit the PWM signals and control the illumination according to the PWM signals.

  Similarly, the lighting device 20-2 transmits the control signal received from the lighting device 20-1 to the lighting device 20-3, converts the control signal into a PWM signal, and transmits the PWM signal to the lighting device 10-4. Output. In such a case, the lighting devices 10-4 to 10-7 transmit the PWM signals in order, and control the illumination according to the PWM signals.

(Functional configuration of each device according to the embodiment)
Hereinafter, an example of a functional configuration of the illumination device 10 and the illumination device 20 according to the embodiment will be described with reference to FIG. FIG. 2 is a block diagram illustrating an example of a functional configuration of each apparatus according to the embodiment. In the following description, an example of the functional configuration of the lighting devices 20-1 and 20-2 and the lighting devices 10-1 to 10-2 is described.

  In the following description, the lighting devices 10-3 to 10-n shall exhibit the same configuration and function as the lighting devices 10-1 and 10-2, and the lighting devices 20-3 to 20-n The description is omitted as a configuration and function similar to those of the lighting devices 20-1 and 20-2.

  First, the structure of the illuminating device 10-1 and the illuminating device 10-4 is demonstrated. The illumination device 10-1 according to the embodiment includes a reception unit 11-1, a control unit 12-1, a light source unit 13-1, and a transmission unit (second transmission unit) 14-1. Moreover, the illuminating device 10-4 has the receiving part 11-4, the control part 12-4, the light source part 13-4, and the transmission part 14-4. Note that the receiving unit 11-4, the control unit 12-4, the light source unit 13-4, and the transmission unit 14-4 included in the lighting device 10-4 are the receiving unit 11-1 and the control unit 12 included in the lighting device 10-1. -1, the light source unit 13-1, and the transmission unit 14-1, the description thereof is omitted as it exhibits the same function.

  The receiving unit 11-1 is a receiving unit that receives the PWM signal output from the lighting device 20, and is, for example, a so-called transition connector (hereinafter simply referred to as a connector) that connects a signal cable that transmits the PWM signal. . When receiving the PWM signal from the lighting device 20, the receiving unit 11-1 outputs the received PWM signal to the control unit 12-1 and the transmission unit 14-1. In addition, since the illuminating device 10-1 is an illuminating device arrange | positioned in the foremost stage among the illuminating devices 10-1 to 10-3 connected in series with the illuminating device 20-1, the PWM signal is transmitted to the illuminating device 20. However, the other lighting devices 10-2 and 10-3 receive the PWM signal from the lighting device 10 arranged in the preceding stage.

  The control unit 12-1 is a control unit that controls the light source unit in accordance with the PWM signal. For example, the control unit 12-1 specifies the illuminance and color of the illumination light, the illumination range, and the like based on the change in the duty ratio of the PWM signal, and the light source unit 13- performs illumination with the specified illuminance and color. 1 is controlled.

  The light source unit 13-1 is a light source included in the lighting device 10-1, and is realized by a semiconductor light emitting element such as an LED that can control the illuminance, the illumination range, the color, and the like according to the control of the control unit 12-1. The transmission unit 14-1 is a transmission unit that transmits the PWM signal received by the reception unit 11-1 to the subsequent lighting device 10, and is, for example, a connector that connects a signal cable that transmits the PWM signal.

  Next, an example of the functional configuration of the lighting devices 20-1 and 20-2 will be described. The illumination device 20-1 includes a reception unit 21-1, a conversion unit 22-1, an output unit 23-1, a control unit 24-1, a light source unit 25-1, and a transmission unit (first transmission unit) 26-1. . The lighting device 20-2 includes a reception unit 21-2, a conversion unit 22-2, an output unit 23-2, a control unit 24-2, a light source unit 25-2, and a transmission unit 26-2. The receiving unit 21-2, the converting unit 22-2, the output unit 23-2, the control unit 24-2, the light source unit 25-2, and the transmitting unit 26-2 included in the lighting device 20-2 are the same as those in the lighting device 20-. 1 having the same functions as the receiving unit 21-1, the converting unit 22-1, the output unit 23-1, the control unit 24-1, the light source unit 25-1, and the transmitting unit 26-1, Description is omitted.

  The receiving unit 21-1 is a receiving unit that receives a control signal in accordance with the DMX standard from the illumination control device 30, and is, for example, a connector that connects a signal cable that transmits the control signal. When receiving the control signal from the illumination control device 30, the receiving unit 21-1 outputs the received control signal to the converting unit 22-1 and the transmitting unit 26-1.

  The conversion unit 22-1 is a conversion device that converts a control signal conforming to the DMX standard into a PWM signal, and is realized by, for example, a circuit board. The conversion unit 22-1 is a computer having a CPU (Central Processing Unit), a RAM (Random Access Memory), an EEPROM, a flash memory, etc., reads a program registered in a predetermined recording medium, and reads the read control program. It may be realized by executing.

  For example, when receiving the control signal, the conversion unit 22-1 determines whether the control address indicated by the received control signal is a control address set in the lighting device 20-1. Then, when the control address indicated by the control signal is the control address set in the lighting device 20-1, the conversion unit 22-1 specifies the control content indicated by the control signal, and the PWM indicating the specified control content. Generate a signal. For example, the conversion unit 22-1 generates a PWM signal indicating the illuminance and color of the illumination light and the illumination range based on the change in the duty ratio. Then, conversion unit 22-1 outputs the generated PWM signal to output unit 23-1 and control unit 24-1.

  The output unit 23-1 is an output unit that outputs the PWM signal generated by the conversion unit 22-1 to the lighting device 10-1, for example, a connector that connects a signal cable that transmits the PWM signal.

  The control unit 24-1 controls the light source unit 25-1 according to the control signal output from the illumination control device 30. More specifically, the control unit 24-1 controls the illuminance and color of light illuminated by the light source unit 25-1, the illumination range, and the like according to the PWM signal output from the conversion unit 22-1. When the control unit 24-1 controls the light source unit 25-1 in accordance with the PWM signal generated by the conversion unit 22-1, the control unit 24-1 has the same logic as that of the control unit 12-1 included in the lighting device 10, and uses a light source. What is necessary is just to control the part 25-1. The control unit 24-1 may receive a control signal in accordance with the DMX standard from the reception unit 21-1, and may control the light source unit 25-1 according to the received control signal.

  The light source unit 25-1 is a light source included in the lighting device 20, and, like the light source unit 13-1, a semiconductor such as an LED that can control the illuminance, the range to be illuminated, the color, and the like according to the control of the control unit 24-1. Realized by a light emitting element.

  The transmission unit 26-1 is a transmission unit that transmits a control signal in accordance with the DMX standard received by the reception unit 21-1 to the subsequent lighting device 20. For example, the transmission unit 26-1 is a signal that transmits a control signal in accordance with the DMX standard. A connector that connects cables.

  As described above, the lighting control system 1 includes the lighting control device 30, the plurality of lighting devices 20-1 to 20-n, and the plurality of lighting devices 10-1 to 10-n. The plurality of lighting devices 20-1 to 20-n are connected in series from the lighting control device 30, and each lighting device 10-1 to 10-n is connected to any one of the lighting devices 20-1 to 20-n. Connected in series.

  Under such a configuration, when the lighting device 20 receives a control signal in accordance with the DMX standard from the lighting control device 30, the lighting device 20 transmits the received control signal to the subsequent lighting device 20, and performs illumination according to the control signal. Further, the control signal is converted into a PWM signal and output to the lighting device 10 connected to the device itself. The lighting devices 10-1 to 10-n transmit the PWM signal transmitted from any of the lighting devices 20-1 to 20-n to the subsequent lighting device 10 and perform illumination according to the received PWM signal. To control.

  Here, the PWM signal is a signal for transmitting information by changing the pulse width. For this reason, the number of lighting devices 20 that can transmit the PWM signal differs depending on the current capacity of the PWM signal. For example, the lighting device 20 can transmit a PWM signal to a maximum of 50 lighting devices 10 when the power consumption of the device is 4 mA per unit. As a result, the lighting control system 1 controls 32 or more lighting devices 10 with DMX signals without preparing a lighting control device or lighting device corresponding to the PWM signal or installing a device for amplifying the signal. can do. Moreover, since the illumination control system 1 does not need to install the apparatus which amplifies a signal, the bidirectional | two-way communication with the illumination equipment 20 and the illumination control apparatus 30 is realizable.

  In the configuration shown in FIG. 1, the lighting control system 1 connects a plurality of lighting devices 20-1 to 20-n in series from the lighting control device 30, and transmits a control signal in accordance with the DMX standard. For this reason, the lighting control system 1 can connect up to 32 lighting devices 20 in series or in a daisy chain. And the lighting control system 1 makes each lighting apparatus 20-1 to 20-n convert a control signal into a PWM signal, and the lighting apparatuses 10-1 to 10-10 connected to each lighting apparatus 20-1 to 20-n. -N is transmitted. For this reason, for example, when 50 lighting devices 10 are connected to one lighting device 20, the lighting control system 1 controls a maximum of 1600 lighting devices 20 without installing a device for amplifying signals. can do.

  In addition, when transmitting control content using a PWM signal, illumination cannot be controlled for each lighting apparatus 10-1 to 10-n. For this reason, each illumination device 10-1 to 10-n connected in series from the illumination device 20 performs the same illumination control as the illumination device 20 that is the transmission source of the PWM signal.

  For example, when the lighting device 20-1 receives a control signal for outputting red light together with the control address set in the lighting device 20-1, the lighting device 20-1 illuminates with red light and emits red light. A PWM signal indicating output is output. As a result, each of the lighting devices 10-1 to 10-3 performs illumination with red light in the same manner as the lighting device 20-1.

  For example, when the lighting device 20-2 receives a control signal for outputting blue light together with the control address set in the lighting device 20-2, the lighting device 20-2 illuminates with blue light and emits blue light. A PWM signal indicating output is output. As a result, each of the lighting devices 10-4 to 10-7 performs illumination with blue light in the same manner as the lighting device 20-2.

  For this reason, the illumination control system 1 can facilitate the illumination effect for each region, that is, the zoning of the illumination effect. For example, when the lighting control system 1 outputs a control signal together with the control address of the lighting device 20-1, the lighting control system 1 controls the lighting device 20-1 and the lighting devices 10-1 to 10-3 in a lump, and the lighting device 20- When the control signal is output together with the control address 2, the lighting device 20-2 and the lighting devices 10-4 to 10-7 can be collectively controlled. In this way, the lighting control system 1 does not need to set the same control address for a plurality of lighting devices that perform the same lighting effects or output a control signal to the plurality of lighting devices. Lighting effects can be made easy.

(About power supply)
In addition, although description was abbreviate | omitted in the example shown in FIG. 2, the illuminating device 10 and the illuminating device 20 can transmit the electric power for performing an illumination effect sequentially. For example, when power is supplied from a power supply device (not shown), the lighting device 20-1 performs illumination using a part of the supplied power and outputs other power to the lighting device 10-1. . On the other hand, similarly to the lighting device 20, the lighting device 10-1 performs illumination using a part of the power supplied from the lighting device 20, and outputs other power to the subsequent lighting device 10-2. As a result of such a configuration, the lighting control system 1 can make the installation work and wiring work of the lighting equipment 20 and the lighting equipment 10 easier.

(Example of lighting device 20)
Next, an example of the outer shape of the lighting device 20 will be described with reference to FIG. FIG. 3 is a diagram for explaining an example of the outer shape of a lighting device that converts a control signal into a PWM signal and outputs the PWM signal. In the example illustrated in FIG. 3, the illumination device 20 is a horizont light that uniformly illuminates a predetermined range, and includes a housing unit 27-1 in which various connectors are installed, and an illumination unit (first illumination unit) that performs illumination. 27-2 is connected with a metal fitting, and the illumination unit 27-2 is installed in such a manner as to be rotatable in a direction with the longitudinal direction as an axis. A light source unit 25-1 is disposed in the illumination unit 27-2, and illumination is performed by the light source unit 25-1 in accordance with a control signal in accordance with the DMX standard.

  Further, a power supply connector 28-1, which is a connector to which a power supply cable is connected to receive power supply from the power supply device, and a control signal in accordance with the DMX standard are input to the housing unit 27-1 from the left side of FIG. The power is output to the receiving unit 21-1, which is a connector, the transmission unit 26-1, which is a connector that transmits a control signal in accordance with the DMX standard, the output unit 23-1, which is a connector that outputs a PWM signal, and the lighting device 10. An outlet 29-1 is arranged for this purpose.

(Example of lighting device 10)
Next, an example of the outer shape of the lighting device 10 will be described with reference to FIG. FIG. 4 is a diagram illustrating an example of the external shape of a lighting device that controls lighting according to a PWM signal. In the example illustrated in FIG. 4, the lighting device 10 is a horizont light that uniformly illuminates a predetermined range, similarly to the lighting device 20, and performs illumination with the casing unit 15-1 in which various connectors are installed. The illumination part 15-2 is connected with a metal fitting, and the illumination part 15-2 is installed in such a manner that the illumination part 15-2 can rotate in a direction having the longitudinal direction as an axis. A light source unit 13-1 is disposed in the illumination unit 15-2, and illumination is performed by the light source unit 13-1 in accordance with the PWM signal.

  In addition, the housing 15-1 receives a PWM signal from the left side of FIG. 4, to which a plug for receiving power supply from the lighting device 20 or the front lighting device 10 is connected, and a PWM signal. A receiving unit 11-1 that is a connector for connecting a cable of the above, a transmission unit 14-1 that is a connector for outputting a PWM signal to the subsequent lighting device 10, and an outlet 17-1 for outputting power to the subsequent lighting device 10. Is placed.

  When having such a configuration, for example, the receiving unit 21-1 of the lighting device 20 is connected to the lighting control device 30 via a communication cable, and the transmission unit 26-1 of the lighting device 20 is included in the subsequent lighting device 20. The receiving unit 21-1 is connected by a communication cable, and the output unit 23-1 of the lighting device 20 is connected to the receiving unit 11-1 of the lighting device 10. The power supply connector 28-1 of the lighting device 20 is connected to the power supply device, and the outlet 29-1 of the lighting device 20 is connected to the power supply connector 16-1 of the lighting device 10. The transmission unit 14-1 of the lighting device 10 is connected to the reception unit 11-1 included in the subsequent lighting device 10, and the outlet 17-1 of the lighting device 10 is connected to the power supply connector 16- included in the subsequent lighting device 10. 1 is connected.

(Flow of processing executed by the lighting device 20)
FIG. 5 is a flowchart illustrating an example of processing executed by a lighting device that converts a control signal into a PWM signal in the lighting control system according to the embodiment. For example, the lighting device 20 receives a DMX standard control signal from the lighting control device 30 (step S101). In such a case, the lighting device 20 transmits the control signal of the DMX standard to the subsequent lighting device 20 (step S102), converts the received control signal into a PWM signal (step S103), and transmits the PWM signal to the lighting device 10. It outputs (step S104), controls illumination according to the control signal (step S105), and ends the process.

(About the number of lighting devices 10)
In the example described above, a plurality of lighting devices 10 are connected in series to one lighting device 20. Here, the number of lighting devices 10 that can be connected in series varies depending on the current capacity of the PWM signal. For this reason, the lighting device 20 can connect any number of lighting devices 10 by changing the current capacity of the PWM signal according to the number of the lighting devices 10. For example, the lighting device 20 can serially or daisy chain 50 or more lighting devices 10 by outputting a PWM signal having a current capacity of 200 mA or more. Further, when the number of lighting devices connected in series is small, the lighting device 20 can prevent wasteful power consumption by reducing the current capacity of the output PWM signal.

  In addition, you may change the change of the said current capacity | capacitance according to the setting of the user who installs the illuminating device 10 or the illuminating device 20. FIG. Further, the lighting device 20 specifies the number of the lighting devices 10 connected in series from the own device using an arbitrary method, and changes the current capacity of the output PWM signal according to the specified number. Good.

(About PWM signal)
Here, the illumination device 20 may transmit the control content using an arbitrary protocol as long as the control content such as the illuminance, color, and illumination range of the light to be illuminated is transmitted using the PWM signal. For example, the lighting device 20 may change the illuminance based on the pulse width of the PWM signal.

  Further, the lighting device 20 may convert a control signal in accordance with the DMX standard into a control signal used in DALI (registered trademark), T / FLECS (registered trademark), or the like, in addition to the PWM signal.

  As described above, according to the above-described embodiment, the plurality of lighting devices 20 are connected in series from the lighting control device 30, and each lighting device 20 transmits a control signal to the subsequent lighting device 20. Further, each lighting device 20 controls lighting according to a control signal in accordance with the DMX standard, converts the control signal into a PWM signal, and sends the converted PWM signal to the lighting device 10 that performs lighting according to the PWM signal. Output.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

1 Illumination control system 10-1 to 10-n Illumination equipment (second illumination equipment)
20-1 to 20-n Lighting equipment (first lighting equipment)
11-1, 21-1, 21-2 receiving units 12-1, 24-1, 24-2 control units 13-1, 25-1, 25-2 light source unit 14-1 transmitting unit (second transmitting unit)
15-1, 27-1 Case 15-2 Illumination (second illumination)
16-1, 28-1 Feed connector 17-1, 29-1 Outlet 22-1, 22-2 Conversion unit 23-1, 23-2 Output unit 26-1 Transmission unit (first transmission unit)
27-2 Illumination unit (first illumination unit)

Claims (6)

An illumination control system having an illumination control device, a plurality of first illumination devices, and a second illumination device different from the first illumination device,
The plurality of first lighting devices are connected in series with the lighting control device;
The second lighting device is connected to the first lighting device;
The lighting control device outputs a control signal along the DMX 512 to the first lighting device;
The first lighting device includes:
A first illumination unit that illuminates an arbitrary position according to the control signal;
A first transmission unit for transmitting the control signal to another first lighting device;
A converter for converting the control signal into a PWM signal;
An output unit for outputting the PWM signal to the second illumination device;
Comprising
The second lighting device includes:
A second illumination unit that illuminates an arbitrary position in accordance with the PWM signal output by the first illumination device;
An illumination control system comprising: The lighting control system includes a plurality of second lighting devices;
The plurality of second lighting devices are connected in series from the first lighting device;
The second lighting device includes:
A second transmission unit configured to transmit the PWM signal output from the first lighting device to another second lighting device;
The illumination control system according to claim 1, further comprising: The first lighting device includes:
A first power transmission unit configured to transmit power supplied from a power supply device to the second lighting device;
Have
The second lighting device includes:
A second power transmission unit configured to transmit the power transmitted from the first lighting device to another second lighting device;
The lighting control system according to claim 2, further comprising: A lighting device connected in series from a lighting control device,
A first illumination unit that illuminates an arbitrary position in accordance with a control signal along DMX512 output by the illumination control device;
A transmission unit that transmits the control signal to a first lighting device that is connected in series with the lighting control device and controls lighting according to the control signal;
A converter that converts the control signal output from the illumination control device into a PWM signal;
An output unit that outputs the PWM signal to a second illumination device that controls illumination according to the PWM signal;
An illumination device comprising: A lighting device installed at the end of a plurality of lighting devices connected in series from the lighting control device,
A first illumination unit that illuminates an arbitrary position according to the received control signal when receiving a control signal along DMX512 from another illumination device connected in series from the control device;
A converter that converts the control signal output from the illumination control device into a PWM signal;
An output unit that outputs the PWM signal to a second illumination device that controls illumination according to the PWM signal;
An illumination device comprising: The first illumination device included in an illumination control system including an illumination control device, a plurality of first illumination devices connected in series with the illumination control device, and a second illumination device different from the first illumination device. A first illumination step of illuminating an arbitrary position according to a control signal along the DMX 512 output by the illumination control device;
A first transmission step of transmitting the control signal to the other first lighting device;
A conversion step of converting a control signal output from the illumination control device into a PWM signal;
An output step of outputting the PWM signal to the second illumination device that controls illumination according to the PWM signal;
The lighting control method characterized by including.

Images