JP2024149198A - Lighting Control System - Google Patents

Abstract

To set an arbitrary ID even if a setting device and an illumination device do not directly establish wireless communication.SOLUTION: A setting device 30 transmits, to a controller 10, a first message for an individual ID request. A controller directly transmits the first message to a plurality of wireless devices 20. The wireless devices each add information on the number of relays and receiving radio wave intensity to the received first message, relay the message to the other wireless devices, select one of the same first messages received within a certain period, transmit a second message for an individual ID response, as a response to the selected first message, add information on the number of relays and receiving radio wave intensity to the received second message, and relay the message to the other wireless devices and the controller. The controller transmits the second message with the information added thereto to the setting device. The setting device orders the wireless devices based on the second message, and sets arbitrary IDs to the wireless devices by an operation of an operator according to the order.SELECTED DRAWING: Figure 1

Description

This disclosure relates to a lighting control system.

The wireless devices that make up the lighting control system are assigned a unique address, such as a 10-digit MAC address. Hereinafter, this unique address will be referred to as an individual ID. When operating a lighting control system, it is preferable to use an arbitrary ID, which is a simple ID that reflects the actual layout, rather than a complex individual ID.

For example, Patent Document 1 discloses a technology that makes the task of setting arbitrary IDs in a lighting control system more efficient. Here, the lighting fixtures are ranked using the received radio wave strength when the lighting controller and the lighting fixture communicate wirelessly, and the arbitrary ID is set according to the ranking, making the task more efficient.

Patent No. 6918435

In the lighting control system described above, the lighting controller and lighting fixtures directly communicate wirelessly and use the received radio wave strength. However, there are cases where the lighting controller and lighting fixtures do not directly communicate wirelessly, such as when there is a repeater between them or when a mesh network is constructed. In such cases, the lighting controller and lighting fixtures communicate wirelessly by relaying communication through multiple wireless devices. In other words, when radio waves are received by relaying communication through multiple wireless devices, it is not possible to obtain the direct received radio wave strength between the lighting controller and lighting fixtures, which poses the problem of not being able to rank the lighting fixtures.

To solve the above-mentioned problems, the present disclosure aims to provide a lighting control system that allows an arbitrary ID to be easily set even when the setting device and the lighting fixture do not directly communicate wirelessly.

An aspect of the present disclosure is preferably a lighting control system that includes a setting device, a plurality of wireless devices having a relay function, and a controller that controls the plurality of wireless devices, in which the setting device directly transmits a first message instructing an individual ID request to the controller, the controller directly transmits the first message to the plurality of wireless devices, the plurality of wireless devices add information on the number of relays and the received radio wave strength to the received first message, relay the first message with the added information to other wireless devices, select one of the same first messages received within a certain period of time, transmit a second message instructing an individual ID response in response to the selected first message, add information on the number of relays and the received radio wave strength to the received second message, relay the second message with the added information to the other wireless devices and the controller, the controller directly transmits the second message with the added information to the setting device, the setting device ranks the plurality of wireless devices based on the selected second message, and sets arbitrary IDs to the wireless devices by the operation of an operator according to the ranking.

According to the aspects of the present disclosure, an arbitrary ID can be easily set even if the setting device and wireless device do not directly implement the lighting fixture.

1 is a block diagram showing a lighting control system according to a first embodiment of the present disclosure. 2 is a block diagram showing a configuration of a lighting controller according to the first embodiment of the present disclosure. FIG. 1 is a block diagram showing a configuration of a lighting device according to a first embodiment of the present disclosure. FIG. 2 is a diagram showing a communication range of the lighting controller according to the first embodiment of the present disclosure. FIG. 2 is a diagram illustrating a communication range of a lighting device according to the first embodiment of the present disclosure. FIG. 11 is a sequence diagram showing a process of making an individual ID request from the setter according to the first embodiment of the present disclosure. 11 is a diagram showing data exchanged in an individual ID request according to the first embodiment of the present disclosure; FIG. 10 is a flowchart showing a method in which a lighting device according to the first embodiment of the present disclosure selects one of a plurality of received identical first messages. FIG. 11 is a sequence diagram showing a process of sending an individual ID response from a lighting device to a setting device according to the first embodiment of the present disclosure. 11 is a diagram showing data exchanged in an individual ID response according to the first embodiment of the present disclosure; FIG. FIG. 4 is a diagram showing an operation screen of a setting device according to the first embodiment of the present disclosure. FIG. 2 is a block diagram showing advantages of the lighting control system according to the first embodiment of the present disclosure. FIG. 11 is a block diagram showing a lighting control system according to a second embodiment of the present disclosure.

First embodiment
[Lighting system according to embodiment 1 of the present disclosure]
A lighting control system according to an embodiment of the present invention will be described with reference to the drawings. The same or corresponding components are designated by the same reference numerals, and repeated description may be omitted.

FIG. 1 is a block diagram showing a lighting control system according to a first embodiment of the present disclosure. The lighting control system 100 includes a setting device 30. The setting device 30 is used by an operator to operate or set the lighting controller 10.

The setting device 30 and the lighting controller 10 perform wireless communication 42. The wireless communication 42 is, for example, infrared communication or 2.4 GHz Bluetooth.

The setting device 30 is also used by an operator to operate or set the lighting fixtures 20a to 20d via the lighting controller 10. The lighting fixtures 20a to 20d form a mesh network by relaying wireless communications.

The lighting devices 20a to 20d and the lighting controller 10 perform wireless communication 40. The wireless communication 40 is, for example, wireless communication of 920 MHz or 2.4 GHz.

Figure 2 is a block diagram showing the configuration of a lighting controller according to embodiment 1 of the present disclosure. The lighting controller 10 includes a first communication unit 12. The first communication unit 12 transmits and receives wireless communication 40, and transmits the received information to the control unit 11.

The lighting controller 10 also includes a second communication unit 13. The second communication unit 13 transmits and receives wireless communication 42 and transmits the received information to the control unit 11.

The lighting controller 10 also includes a human detection sensor unit 14. The human detection sensor unit 14 detects the presence or absence of a person and transmits the detected information to the control unit 11.

The lighting controller 10 also includes a brightness sensor unit 15. The brightness sensor unit 15 detects the brightness and transmits the detected information to the control unit 11.

The control unit 11 performs calculations to realize the functions of the lighting controller 10 and calculations necessary to control the lighting fixtures 20a to 20d. Specifically, the control unit 11 controls the lighting fixtures 20a to 20d based on information received from the first communication unit 12, the second communication unit 13, the human detection sensor unit 14, and the brightness sensor unit 15. This control is performed via the first communication unit 12. The control unit 11 also displays the status of the lighting controller 10 on the LED status display unit 16.

Figure 3 is a block diagram showing the configuration of a lighting fixture according to the first embodiment of the present disclosure. The lighting fixture 20 includes a wireless communication unit 22. The wireless communication unit 22 transmits and receives wireless communication 40, and transmits the received information to the control unit 21. The information received here is, for example, a dimming control signal transmitted from the lighting controller 10. The wireless communication unit 22 also has a function of relaying a received signal from the lighting controller 10 or another lighting fixture.

The control unit 21 controls each part of the lighting device 20 based on the wireless signal received by the wireless communication unit 22. For example, the control unit 21 performs calculations to realize the functions of the lighting device 20. Furthermore, the control unit 21 transmits information about the lighting device 20 to the wireless communication unit 22 based on the wireless signal received by the wireless communication unit 22. The wireless communication unit 22 transmits the information about the lighting device 20 to the lighting controller 10.

The control unit 21 also performs calculations necessary for controlling the LED light source unit 24, which will be described later, and transmits a control signal to the LED control unit 23. The LED control unit 23 controls the LED light source unit 24. The LED control unit 23 controls the power supplied to the LED light source unit 24, for example, based on a control signal from the control unit 21. The LED light source unit 24 has a light source. This light source is, for example, a light-emitting element such as an LED.

Figure 4 is a diagram showing the communication range of the lighting controller according to the first embodiment of the present disclosure. Communication range 50 is the range in which lighting controller 10 can communicate using first communication unit 12. Because lighting fixtures 20a and 20b are included in communication range 50, lighting controller 10 can directly communicate wirelessly with lighting fixtures 20a and 20b. On the other hand, lighting fixtures 20c and 20d are not included in communication range 50, so lighting controller 10 cannot directly communicate wirelessly with lighting fixtures 20c and 20d.

Figure 5 is a diagram showing the communication range of the lighting fixture according to the first embodiment of the present disclosure. Communication range 50a is the range in which lighting fixture 20a can communicate using wireless communication unit 22. Since lighting controller 10, lighting fixture 20b, lighting fixture 20c, and lighting fixture 20d are included in communication range 50a, lighting fixture 20a can directly communicate wirelessly with them.

The communication range 50b is the range within which the lighting device 20b can communicate using the wireless communication unit 22. Since the lighting controller 10, the lighting device 20a, the lighting device 20c, and the lighting device 20d are included in the communication range 50a, the lighting device 20b can directly communicate wirelessly with them.

The communication range 50c is the range within which the lighting fixture 20c can communicate using the wireless communication unit 22. Since the lighting fixtures 20a, 20b, and 20d are included in the communication range 50a, the lighting fixture 20c can directly communicate wirelessly with them. On the other hand, the lighting controller 10 is not included in the communication range 50c, so the lighting fixture 20c cannot directly communicate wirelessly with the lighting controller 10.

The communication range 50d is the range within which the lighting fixture 20d can communicate using the wireless communication unit 22. Since the lighting fixtures 20a, 20b, and 20c are included in the communication range 50a, the lighting fixture 20d can directly communicate wirelessly with these lighting fixtures. On the other hand, the lighting controller 10 is not included in the communication range 50d, so the lighting fixture 20d cannot directly communicate wirelessly with the lighting controller 10.

[Individual ID request according to the first embodiment of the present disclosure]
6 is a sequence diagram showing a process of making an individual ID request from the setting device according to the first embodiment of the present disclosure. The individual ID is, for example, a MAC address. Here, a process will be described in which the setting device makes an individual ID request to each lighting fixture by transmitting a first message, which is specific transmission data, to the lighting fixture so that the individual IDs of the lighting fixtures in the lighting control system 100 are displayed on the setting device.

First, the setting device 30 instructs the lighting controller 10 to request an individual ID. That is, the first message from the setting device 30 is sent directly to the lighting controller 10.

Next, the lighting controller 10 directly instructs the lighting fixtures 20a and 20b to request an individual ID. That is, the first message from the lighting controller 10 is sent directly to the lighting fixtures 20a and 20b.

Next, lighting fixture 20a relays the individual ID request to lighting fixture 20b, lighting fixture 20c, and lighting fixture 20d. That is, the first message from lighting controller 10 is transmitted to lighting fixture 20b, lighting fixture 20c, and lighting fixture 20d via lighting fixture 20a. At this time, relaying is performed after a certain delay in order to avoid relaying the same data multiple times and to prevent the lighting fixtures from overlapping in transmission timing.

Next, lighting fixture 20b relays the individual ID request to lighting fixture 20a, lighting fixture 20c, and lighting fixture 20d. That is, the first message from lighting controller 10 is transmitted to lighting fixture 20a, lighting fixture 20c, and lighting fixture 20d via lighting fixture 20b. At this time, relaying is performed after a certain delay in order to avoid relaying the same data multiple times and to prevent the lighting fixtures from overlapping in transmission timing.

Next, lighting fixture 20c relays the individual ID request to lighting fixture 20a, lighting fixture 20b, and lighting fixture 20d. That is, the first message from lighting controller 10 is transmitted to lighting fixture 20a, lighting fixture 20b, and lighting fixture 20d via lighting fixture 20c. At this time, relaying is performed after a certain delay in order to avoid relaying the same data multiple times and to prevent the lighting fixtures from overlapping in transmission timing.

Next, lighting fixture 20d relays the individual ID request to lighting fixture 20a, lighting fixture 20b, and lighting fixture 20c. That is, the first message from lighting controller 10 is transmitted to lighting fixture 20a, lighting fixture 20b, and lighting fixture 20c via lighting fixture 20d. At this time, relaying is performed after a certain delay in order to avoid relaying the same data multiple times and to prevent the lighting fixtures from overlapping in transmission timing.

Figure 7 is a diagram showing data exchanged in an individual ID request according to embodiment 1 of the present disclosure. Here, the format of the data exchanged and a specific example of data relayed by the lighting controller 10 and lighting fixtures 20a to 20d are shown. The data format uses a sender ID, a destination ID, a message ID, a command, a relay count, radio wave strength 1, and a radio wave strength 2. Data conforming to this format is a specific example of the first message described above.

The lighting controller 10 sets the source ID to the lighting controller's individual ID and the destination ID to broadcast. It also sets the message ID to 1 to identify the message. The command is an individual ID request. Note that at this point, no relaying or radio wave transmission has been performed, so the number of relays is 0, and radio wave strength 1 and radio wave strength 2 are "none."

When each lighting fixture relays a received first message, it increases the number of relays by one, adds the received radio wave strength at the time of reception, and then transmits the first message. For example, lighting fixture 20a transmits the first message for data received from lighting controller 10 with one relay and radio wave strength 1 set to -70 dBm. Similarly, lighting fixture 20b transmits the first message for data received from lighting controller 10 with one relay and radio wave strength 1 set to -80 dBm.

Here, lighting fixture 20c transmits the first message relayed by lighting fixture 20a after relaying it twice and setting radio wave strength 2 to -70 dBm. Similarly, lighting fixture 20d transmits the first message relayed by lighting fixture 20a after relaying it twice and setting radio wave strength 2 to -80 dBm.

Note that lighting fixtures 20a to 20d may receive the same first message multiple times. The same message refers to multiple first messages with the same message ID, for example. In the case of FIG. 6, lighting fixture 20d receives the same first message relayed by lighting fixture 20a, lighting fixture 20b, and lighting fixture 20c. However, in order to reduce the amount of data in wireless communication, it is necessary to narrow down the first messages to be relayed and responded to to one of them.

Figure 8 is a flowchart showing a method in which a lighting device according to embodiment 1 of the present disclosure selects one of the multiple identical first messages received. First, in step 100, the lighting device in question receives the first message. Next, in step 102, it is confirmed whether the lighting device in question has received multiple identical first messages. If multiple messages have been received, the process proceeds to step 104. If multiple messages have not been received, the process proceeds to step 110.

In step 104, the number of relays of the received first message is checked. In other words, the smaller the number of relays, the more likely it is that the first message was sent via the shortest route, and the first message can be selected. Specifically, the number stored in the number of relays of the data is checked. If the number of relays is greater than that of the temporarily stored first message, proceed to step 106. If the number of relays is the same as that of the temporarily stored first message, proceed to step 108. If the number of relays is less than that of the temporarily stored first message, proceed to step 110.

In step 106, discard the first message received and proceed to step 112.

In step 108, it is confirmed whether the estimated distance of the received first message is short. In other words, the shorter the estimated distance, the more likely it is that the first message was sent via the shortest route, and the first message can be selected.

Specifically, the estimated distance is calculated based on the received signal strength for each relay and then compared. The relationship between distance and signal strength is generally known as the Friis formula. The Friis formula states that in free space, signal strength (RSSI) is inversely proportional to the square of the distance. In other words, the relationship between distance and signal strength can be expressed by Equation 1.

By transforming equation 1, the distance d can be expressed as equation 2.

Since the transmission power is determined by the wireless device, the distance can be calculated by determining the received signal strength (RSSI). However, the above is the relationship between signal strength and distance in free space, so in the actual environment it is an estimated distance.

By calculating and adding up the estimated distances for the number of relays using Equation 2, the estimated distance from the source lighting controller 10 to the time when the corresponding lighting fixture receives the signal can be calculated. If the estimated distance is not short, proceed to step 106. If the estimated distance is short, proceed to step 110.

In step 110, the received first message is temporarily stored. In other words, if a first message was previously temporarily stored, that first message is discarded and the newly received first message is temporarily stored. Then, proceed to step 112.

Next, in step 112, it is determined whether a certain period of time has passed since the first message was received. If the certain period of time has not passed, the process returns to step 100. If the certain period of time has passed, the process proceeds to step 114.

Next, in step 114, the first message is confirmed. That is, the first message temporarily stored at the time of step 114 is confirmed as the first message to be relayed and responded to. In this way, multiple first messages received within a certain period of time are compared, and the first message that is finally confirmed is used for the next relay and response.

[Individual ID response according to the first embodiment of the present disclosure]
9 is a sequence diagram showing a process of sending an individual ID response from the lighting fixtures to the setting device according to the first embodiment of the present disclosure. Here, a process of sending an individual ID response from each lighting fixture to the setting device 30 by transmitting a second message that is specific transmission data in order to cause the setting device to display the individual IDs of the lighting fixtures owned by the lighting control system 100 will be described. In particular, a process of sending an individual ID response from lighting fixture 20d to the setting device will be shown here.

First, lighting fixture 20d instructs lighting fixture 20c, lighting fixture 20b, and lighting fixture 20a to respond with their individual IDs. That is, a second message from lighting fixture 20d is sent directly to lighting fixture 20c, lighting fixture 20b, and lighting fixture 20a.

Next, lighting fixture 20c relays an individual ID response instruction to lighting fixture 20d, lighting fixture 20b, and lighting fixture 20a. That is, the second message from lighting fixture 20d is transmitted to lighting fixture 20d, lighting fixture 20b, and lighting fixture 20a via lighting fixture 20d. At this time, relaying is performed after a certain delay in order to avoid relaying the same data multiple times and to prevent the lighting fixtures from overlapping in transmission timing.

Next, lighting fixture 20b relays an individual ID response instruction to lighting fixture 20c, lighting fixture 20d, and lighting fixture 20a. That is, the second message from lighting fixture 20d is transmitted to lighting fixture 20c, lighting fixture 20d, and lighting fixture 20a via lighting fixture 20b. At this time, relaying is performed after a certain delay in order to avoid relaying the same data multiple times and to prevent the lighting fixtures from overlapping in transmission timing.

Next, lighting fixture 20a relays an individual ID response instruction to lighting fixture 20b, lighting fixture 20c, and lighting fixture 20d. That is, the second message from lighting fixture 20d is transmitted to lighting fixture 20b, lighting fixture 20c, and lighting fixture 20d via lighting fixture 20a. At this time, relaying is performed after a certain delay in order to avoid relaying the same data multiple times and to prevent the lighting fixtures from overlapping in transmission timing.

Finally, the lighting controller 10 instructs the setting device 30 to respond with an individual ID. That is, the second message from lighting fixture 20d is sent directly to the lighting controller 10. In this way, lighting fixture 20a or lighting fixture 20b relays the second message from lighting fixture 20d, allowing the lighting controller 10 to receive a response to the individual ID request from lighting fixture 4.

The lighting controller 10 also receives individual ID responses from lighting fixtures 20a, 20b, and 20c, just as it does for lighting fixture 20d.

Figure 10 is a diagram showing data exchanged in an individual ID response according to the first embodiment of the present disclosure. Here, the format of the data exchanged and a specific example of the data sent from lighting fixtures 20a to 20d to lighting controller 10, i.e., the final confirmed second message, are shown. The data format uses sender ID, destination ID, message ID, command, number of relays, radio wave strength 1, and radio wave strength 2.

The second message is determined based on the first message that is finally confirmed for each lighting fixture. In other words, the number of relays and each radio wave strength contained in the second message will be the same as the number of relays and each radio wave strength contained in the first message that is confirmed for the corresponding lighting fixture.

The lighting fixture 20a sets the individual ID of the lighting fixture 20a as the source ID and the individual ID of the lighting controller 10 as the destination ID. In addition, to identify the message, the message ID is set to 1. The command is an individual ID response. Furthermore, this second message is relayed once, with radio wave strength 1 being -70 dBm and radio wave strength 2 being "none."

Similarly, lighting fixture 20b sets the individual ID of lighting fixture 20b as the source ID and the individual ID of lighting controller 10 as the destination ID. It also sets the message ID to 1 to identify the message. The command is an individual ID response. Furthermore, this second message is relayed once, with radio wave strength 1 being -80 dBm and radio wave strength 2 being "none."

The lighting fixture 20c sets the individual ID of the lighting fixture 20c as the source ID and the individual ID of the lighting controller 10 as the destination ID. To identify the message, the message ID is set to 1. The command is an individual ID response. This second message is relayed twice, with radio field strength 1 being -80 dBm and radio field strength 2 being -70 dBm.

The lighting fixture 20d also sets the lighting fixture 20d's individual ID as the source ID and the lighting controller 10's individual ID as the destination ID. To identify the message, the message ID is set to 1. The command is an individual ID response. This second message is relayed twice, with radio wave strength 1 being -80 dBm and radio wave strength 2 being -80 dBm.

[Setting device operation screen in the first embodiment of the present disclosure]
11 is a diagram showing an operation screen of the setting device according to the first embodiment of the present disclosure. Here, a screen displayed as an operation screen on the setting device 30 when lighting fixture address setting is performed using the setting device 30 is shown.

The operation screen displays the individual ID, address, number of relays, and specified distance based on the second message. The individual ID indicates the individual ID of lighting fixtures 20a to 20d. The address indicates an arbitrary ID that can be set using a setting device. The estimated distance is expressed in 10 stages for each number of relays. Here, it is set so that 1 is the shortest and 10 is the longest.

That is, the operation screen displays a ranking based on the number of relays and the estimated distance contained in the first message transmitted via the shortest route for each lighting fixture. This ranking tends to be close to the actual distance between each lighting fixture and the lighting controller 10. In other words, by setting an arbitrary ID through the operator's operation according to this ranking, the arbitrary ID can be made to reflect the actual layout. Therefore, for example, even if the operator wants to set an arbitrary ID while visually checking the actual lighting fixture, the work can be carried out efficiently because lighting fixtures with similar arbitrary IDs tend to be located close to each other.

As described above, the operation screen of the setting device 30 displays the ranking of each lighting fixture based on the number of relays and the estimated distance, making it possible to set an arbitrary ID that reflects the actual layout. In other words, even if the setting device and the lighting fixture do not directly communicate wirelessly, the arbitrary ID can be easily set.

Figure 12 is a block diagram showing advantages of a lighting control system according to embodiment 1 of the present disclosure. Lighting control system 100a differs from lighting control system 100 in that lighting controller 10 directly communicates wirelessly with lighting fixture 20c.

In the lighting control system of Patent Document 1, when setting an arbitrary ID for lighting fixtures 20c etc. that cannot directly communicate wirelessly with the lighting controller 10, the operator had to move around with the lighting controller 10 and the setting device 30. That is, as in the lighting control system 100a, the worker had to move to a position where the lighting controller 10 can directly communicate wirelessly with the lighting fixtures 20c to directly obtain the received radio wave intensity. However, with the lighting control system of this embodiment, an arbitrary ID can be set for lighting fixtures that cannot directly communicate wirelessly without the worker having to move.

Embodiment 2
13 is a block diagram showing a lighting control system according to embodiment 2 of the present disclosure. Lighting control system 200 differs from lighting control system 100 in that lighting device 20e is installed instead of lighting controller 10.

The setting device 30 and lighting fixture 20e perform wireless communication 42. The setting device 30 is also used by an operator to operate or set lighting fixtures 20a to 20d via lighting fixture 20e.

The following are summary aspects of this disclosure:

(Appendix 1)
A setting device;
A plurality of wireless devices each having a relay function;
a controller for controlling the plurality of wireless devices;
The setting device transmits a first message directly to the controller indicating an individual ID request;
the controller transmitting the first message directly to the plurality of wireless devices;
The plurality of wireless devices,
Adding information on the number of relays and the received radio wave strength to the received first message,
relaying the first message with the added information to another wireless device;
Select one of the same first messages received within a certain period of time;
Transmitting a second message indicating an individual ID response as a response to the selected first message;
adding information on the number of relays and the received radio wave strength to the received second message;
relaying the second message with the added information to other wireless devices and a controller;
The controller directly transmits the second message with the added information to the setting device;
The setting device is
ranking the plurality of wireless devices based on the selected second messages;
A lighting control system that sets an arbitrary ID to the wireless device according to the ranking.
(Appendix 2)
The ranking is
The lighting control system according to claim 1, wherein the selected second message is relayed in descending order of the number of times the second message is relayed.
(Appendix 3)
The ranking is
The lighting control system according to claim 1 or 2, wherein when the selected number of relays of the second message is the same, relays are performed in order of shortest estimated distance estimated from received radio wave strength.
(Appendix 4)
The selection,
The lighting control system according to any one of appendixes 1 to 3, wherein the first message is relayed the fewest number of times within the certain period of time.
(Appendix 5)
The selection,
A lighting control system as described in any one of appendix 1 to 4, wherein if the number of times the same first message received within the certain period is the same, the relay is performed on the one with the shortest estimated distance estimated from the received radio wave strength.
(Appendix 6)
The setting device is
The lighting control system according to any one of appendixes 1 to 5, further comprising: displaying, together with the individual IDs of the plurality of wireless devices, an estimated distance estimated from the number of times the selected first message has been relayed and the strength of the received radio wave.
(Appendix 7)
The lighting control system according to any one of claims 1 to 6, wherein the controller is a wireless device having the same functions as the controller.

10 Lighting controller 20, 20a, 20b, 20c, 20d, 20e Lighting fixture 30 Setting device 100, 100a, 200 Lighting control system

Claims (7)

A setting device;
A plurality of wireless devices each having a relay function;
a controller for controlling the plurality of wireless devices;
The setting device transmits a first message directly to the controller indicating an individual ID request;
the controller transmitting the first message directly to the plurality of wireless devices;
The plurality of wireless devices,
adding information on the number of relays and the received radio wave strength to the received first message;
relaying the first message with the added information to another wireless device;
Select one of the same first messages received within a certain period of time;
Transmitting a second message indicating an individual ID response as a response to the selected first message;
adding information on the number of relays and the received radio wave strength to the received second message;
relaying the second message with the added information to other wireless devices and a controller;
The controller directly transmits the second message with the added information to the setting device;
The setting device is
ranking the plurality of wireless devices based on the transmitted second message;
A lighting control system in which an operator sets an arbitrary ID to the wireless device according to the ranking. The ranking is
The lighting control system according to claim 1 , wherein the second message is relayed in descending order of the number of times that it has been relayed. The ranking is
The lighting control system according to claim 2 , wherein, when the number of relays of the transmitted second message is the same, relaying is performed in order of shortest estimated distance estimated from received radio wave strength. The selection,
The lighting control system according to claim 1 , wherein the first message is implemented by the first message that has been received the fewest number of times within the certain period of time. The selection,
The lighting control system according to claim 4 , wherein, when the number of times the same first message has been relayed within the certain period is the same, the relay is performed on the one with the shortest estimated distance estimated from the received radio wave strength. The setting device is
The lighting control system according to claim 1 , further comprising: displaying, together with the individual IDs of the plurality of wireless devices, an estimated distance estimated from the number of times the selected first message has been relayed and a received radio wave intensity. The lighting control system according to claim 1 , wherein the controller is a wireless device having the same functions as the controller.

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