Information processing device

Abstract

To check the wiring condition.SOLUTION: When a request signal REQ1 is sent to a luminaire LE(1) at the first end of the plurality of luminaires LE(1) to LE(N) connected in series by a wiring W and no response signal is received from the luminaires in a first portion of the plurality of luminaires LE(1) to LE(N), and when a request signal REQ2 is sent to the luminaire LE(N) at the second end of the plurality of luminaires LE(1) to LE(N) connected in series and response signals are received from all of the luminaires in the first portion, it is determined that there is a break in the wiring W.SELECTED DRAWING: Figure 13

Description

Technical Field

[0001] The present invention relates to an information processing apparatus.

Background Art

[0002] A plurality of lighting fixtures are installed in a tunnel. By connecting these plurality of lighting fixtures in series, the wiring between the lighting fixtures becomes easy (for example, Patent Document 1).

Prior Art Documents

Non-Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The wiring between these lighting fixtures may break.

[0005] Therefore, an object of the present invention is to check the state of the wiring.

Means for Solving the Problems

[0006] To solve the above problems, an information processing device according to one embodiment of the present invention is an information processing device having a light fixture status confirmation processing unit that checks the status of a plurality of light fixtures, wherein the plurality of light fixtures are connected in series by wiring, and the information processing device is connected by wiring to the first end light fixture and the second end light fixture of the plurality of light fixtures connected in series, and each of the plurality of light fixtures, upon receiving a signal from one side, forwards the signal to the other side, and if the signal received from the one side is a request signal, forwards the request signal to the other side and transmits a response signal to the one side, and the light fixture status confirmation processing unit, when it transmits the request signal to the first end light fixture, does not receive the request signal from the second end light fixture, and when it transmits the request signal to the first end light fixture, does not receive a response signal from the first part of the plurality of light fixtures, but when it transmits the request signal to the second end light fixture, it receives response signals from all of the first part of the light fixtures, and determines that there is a break in the wiring.

[0007] The lamp condition confirmation processing unit may determine that, if the number of lamps in the first part is not zero, and the number of lamps other than those in the first part is not zero, then the wiring between the lamp at the first end of the lamps in the first part and the lamp at the second end of the lamps in the first part is broken.

[0008] The lamp status confirmation processing unit may determine that the wiring between the information processing unit and the lamp at the first end is broken if the number of lamps other than the first part is zero.

[0009] The lamp status confirmation processing unit may determine that if the number of lamps in the first part is zero, the wiring between the information processing unit and the lamp at the second end is broken.

[0010] The lamp status confirmation processing unit may, when it transmits the request signal to the lamp at the first end, receive the request signal from the lamp at the second end, and if it receives response signals from all of the multiple lamps, it may determine that there is no break in the wiring.

[0011] If the lamp status confirmation processing unit does not receive a response signal from the second part of the lamps in the first part when it transmits the request signal to the lamp at the second end, it may determine that there is a faulty lamp among the plurality of lamps, and the number of lamps in the second part may be set to be non-zero.

[0012] The lamp condition confirmation processing unit may also determine that the lamp at the first end of the lamps in the first part and the lamp at the second end of the lamps in the second part are malfunctioning.

[0013] The lamp status confirmation processing unit may determine that the lamps between the first-end lamp of the first part and the second-end lamp of the second part are lamps that require user confirmation.

[0014] An information processing method according to one embodiment of the present invention is an information processing method performed by an information processing device, comprising a lamp status confirmation process step of confirming the status of a plurality of lamps, wherein the plurality of lamps are connected in series by wiring, and the information processing device is connected by wiring to the lamp at the first end and the lamp at the second end of the plurality of lamps connected in series, and each of the plurality of lamps, upon receiving a signal from one side, forwards the signal to the other side, and if the signal received from the one side is a request signal, forwards the request signal to the other side and transmits a response signal to the one side, and the lamp status The status confirmation process includes the steps of: transmitting the request signal to the first end light fixture; transmitting the request signal to the second end light fixture if the request signal from the second end light fixture is not received when the request signal is transmitted to the first end light fixture; and determining that there is a break in the wiring if, when the request signal is transmitted to the first end light fixture, response signals are not received from the first portion of the plurality of light fixtures, but when the request signal is transmitted to the second end light fixture, response signals are received from all of the first portion of the plurality of light fixtures.

[0015] An information processing program according to one embodiment of the present invention causes a computer to execute the above-described information processing method. [Effects of the Invention]

[0016] This invention makes it possible to check the condition of the wiring. [Brief explanation of the drawing]

[0017] [Figure 1] This figure shows a control device 100 according to one embodiment of the present invention. [Figure 2] This is a diagram showing an example of the control unit 110. [Figure 3] This diagram illustrates the connection between the control device 100 and multiple luminaires LE(1) to LE(N). [Figure 4] This diagram illustrates normal communication. [Figure 5]This is a diagram for explaining communication when there is a disconnection in the wiring between lamps. [Figure 6] This is a diagram for explaining communication when there is a disconnection in the wiring between the control device 100 and the lamps. [Figure 7] This is a diagram for explaining communication when there is a disconnection in the wiring between the control device 100 and the lamps. [Figure 8] This is a diagram for explaining communication when there is a faulty lamp. [Figure 9] This is a diagram for explaining communication when there is a faulty lamp. [Figure 10] This is a diagram for explaining communication when there is a faulty lamp. [Figure 11] This is a diagram for explaining communication when there is a faulty lamp. [Figure 12] This is a diagram for explaining communication when there is a lamp without an assigned ID. [Figure 13] This is a diagram showing an example of the processing operation in the lamp state confirmation processing unit 112. [Figure 14] This is a diagram showing an example of the comprehensive monitoring screen. [Figure 15] This is a diagram showing an example of the monitoring screen. [Figure 16] This is a diagram showing an example of the monitoring screen in a state where the numeric keypad is pop-up displayed. [Figure 17] This is a diagram showing an example of the history display screen. [Figure 18] This is a display example of the wiring check screen for the example shown in FIG. 5. [Figure 19] This is a display example of the wiring check screen for the example shown in FIG. 6. [Figure 20] This is a display example of the wiring check screen for the example shown in FIG. 8. [Figure 21] This is a display example of the wiring check screen for the example shown in FIG. 10.

Embodiments for Carrying Out the Invention

[0018] <Control device 100> Figure 1 shows a control device 100 according to one embodiment of the present invention. The control device 100 is a device that controls multiple lighting fixtures installed in a tunnel. When there are multiple systems consisting of multiple lighting fixtures and the control device 100 controls these multiple systems, the control device 100 controls the lighting fixtures for each system.

[0019] The control device 100 includes a control unit 110, a display unit 120, an input unit 130, a first communication unit 140, and a second communication unit 150. The control unit 110 is an information processing device (computer) that processes information. The display unit 120 is a display device that displays information, such as a display. The input device 130 is an input device that receives information input from the user, such as a touch panel. The first communication unit 140 is a communication device for sending and receiving information with a plurality of lighting fixtures installed inside the tunnel. The second communication unit 150 is a communication device for sending and receiving information with a higher-level device installed outside the control device 100 and with a weather detection sensor. The weather detection sensor is installed outside the tunnel and detects the weather outside the tunnel.

[0020] Figure 2 shows an example of the control unit 110. The control unit 110 includes a lighting control processing unit 111, a lighting status confirmation processing unit 112, and a display processing unit 113.

[0021] The lighting control processing unit 111 controls the brightness of multiple (N) lighting fixtures LE(1) to LE(N) installed in the tunnel using communication via the first communication unit 140. The lighting control processing unit 111, for example, uses communication with a weather detection sensor via the second communication unit 150 to acquire information about the weather outside the tunnel detected by the weather detection sensor, and controls the brightness of the multiple lighting fixtures LE(1) to LE(N) based on the acquired weather information. The lighting control processing unit 111 also controls the brightness of the multiple lighting fixtures LE(1) to LE(N) based on information input via the input unit 130. Furthermore, the lighting control processing unit 111 receives information from a higher-level device through communication with the higher-level device via the second communication unit 150, and controls the brightness of the multiple lighting fixtures LE(1) to LE(N) based on the received information.

[0022] The lighting control processing unit 111 selects one control pattern from a plurality of pre-prepared control patterns based on, for example, the weather outside the tunnel detected by the weather detection sensor, information input by the input unit 130, or information from a higher-level device, and controls the brightness of the plurality of lighting fixtures LE(1) to LE(N) based on the selected control pattern. The plurality of control patterns may include, for example, a control pattern suitable for sunny weather, a control pattern suitable for cloudy weather, a control pattern suitable for daytime, a control pattern suitable for nighttime, a control pattern suitable for late night, a control pattern suitable for power outages, a control pattern suitable for self-generation, a control pattern suitable for disaster prevention, and a control pattern to turn on the lighting fixtures at 100%. In this case, the control pattern suitable for sunny weather and the control pattern suitable for cloudy weather may each include multiple control patterns.

[0023] The luminaire control processing unit 111 controls the multiple luminaires LE(1) to LE(N) so that they work in conjunction. If systems other than the system composed of the multiple luminaires LE(1) to LE(N) are also controlled by the control device, the luminaire control processing unit 111 controls the luminaires in each system so that the luminaires included in each system work in conjunction. In addition, the luminaire control processing unit 111 may also individually control the multiple luminaires LE(1) to LE(N) based on information input by the input unit 130 or information from a higher-level device.

[0024] The luminaire status confirmation processing unit 112 uses communication by the first communication unit 140 to confirm the status of multiple luminaires LE(1) to LE(N) installed in the tunnel. At this time, as detailed below, the luminaire status confirmation processing unit 112 sends a request signal to the multiple luminaires LE(1) to LE(N) requesting the return of a response signal including the status of the luminaires.

[0025] The display processing unit 113 displays information on the screen of the display unit 120 for the user to check information about the control device 100, and buttons for receiving operations from the user. The information about the control device 100 includes, for example, the status of the luminaires LE(1) to LE(N), the status of the wiring W, the operation history of the luminaires LE(1) to LE(N), and the failure history of the luminaires LE(1) to LE(N), as detailed below.

[0026] <Example of processing by the lighting fixture status confirmation processing unit 112> In the tunnel, multiple luminaires LE(1) to LE(N) are connected in series (in a daisy-chain configuration) by wiring W, as shown in Figure 3. The multiple luminaires LE(1) to LE(N) are connected in the order of LE(1), LE(2), ..., LE(N), and the control device 100 is connected by wiring W to the two luminaires LE(1) and LE(N) at both ends of this series-connected set of luminaires LE(1) to LE(N) (that is, the control device 100 is connected to the luminaire LE(1) at the first end and the luminaire LE(N) at the second end). Wiring W is capable of transmitting communication signals, and the control device 100 (first communication unit 140) communicates with the multiple luminaires LE(1) to LE(N) via this wiring W.

[0027] The example shown in Figure 3 is an example where N=4, that is, an example where the control device 100 controls four luminaires LE(1) to LE(4). In the example shown in Figure 3, the four luminaires LE(1) to LE(4) are connected in series in the order LE(1), LE(2), LE(3), and LE(4), and the control device 100 is connected to the luminaire LE(1) at the first end and the luminaire LE(4) at the second end.

[0028] When checking the status of multiple luminaires LE(1) to LE(N), the luminaire status confirmation processing unit 112 first sends a request signal REQ1 to luminaire LE(1) (the luminaire at the first end). In this embodiment, each LE(m) (m=1, 2, ..., N) of the multiple luminaires LE(1) to LE(N) forwards the signal to the other side if it receives a signal from one side. Also, if the signal received from the one side is a request signal, each LE(m) (m=1, 2, ..., N) of the multiple luminaires LE(1) to LE(N) forwards the request signal to the other side and sends a response signal RES1(m) containing information about the status of the luminaire LE(m) to the one side.

[0029] Therefore, when luminaire LE(1) receives the request signal REQ1, it forwards the request signal REQ1 to luminaire LE(2) and transmits a response signal RES1(1) containing information about the state of luminaire LE(1) to the control device 100. When luminaire LE(2) receives the request signal REQ1, it forwards the request signal REQ1 to luminaire LE(3) and transmits a response signal RES1(2) containing information about the state of luminaire LE(2) to luminaire LE(1), and luminaire LE(1) forwards this response signal RES1(2) to the control device 100. When luminaire LE(3) receives the request signal REQ1, it forwards the request signal REQ1 to luminaire LE(4), sends a response signal RES1(3) containing information about the state of luminaire LE(3) to luminaire LE(2), luminaire LE(2) forwards this response signal RES1(3) to luminaire LE(1), and luminaire LE(1) forwards this response signal RES1(3) to the control device 100. ... When luminaire LE(m) receives the request signal REQ1, it forwards the request signal REQ1 to luminaire LE(m+1), sends a response signal RES1(m) containing information about the state of luminaire LE(m) to luminaire LE(m-1), luminaire LE(m-1) forwards this response signal RES1(m) to luminaire LE(m-2), ... and luminaire LE(1) forwards this response signal RES1(m) to the control device 100. ... When luminaire LE(N) (the luminaire at the second end) receives the request signal REQ1, it forwards the request signal REQ1 to the control device 100, sends a response signal RES1(N) containing information about the state of luminaire LE(N) to luminaire LE(N-1), luminaire LE(N-1) forwards this response signal RES1(N) to luminaire LE(N-2), ..., and luminaire LE(1) forwards this response signal RES1(N) to the control device 100.

[0030] Figure 4 is a diagram illustrating the signal flow in the example shown in Figure 3. In the example shown in Figure 4, a request signal REQ1 is transmitted to the luminaire LE(1) (the luminaire at the first end). When luminaire LE(1) receives the request signal REQ1, it forwards the request signal REQ1 to luminaire LE(2) and transmits a response signal RES1(1) containing information about the state of luminaire LE(1) to the control device 100. When luminaire LE(2) receives the request signal REQ1, it forwards the request signal REQ1 to luminaire LE(3) and transmits a response signal RES1(2) containing information about the state of luminaire LE(2) to luminaire LE(1), and luminaire LE(1) forwards this response signal RES1(2) to the control device 100. When luminaire LE(3) receives the request signal REQ1, it forwards the request signal REQ1 to luminaire LE(4), transmits a response signal RES1(3) containing information about the state of luminaire LE(3) to luminaire LE(2), luminaire LE(2) forwards this response signal RES1(3) to luminaire LE(1), and luminaire LE(1) forwards this response signal RES1(3) to the control device 100. When luminaire LE(4) (the luminaire at the second end) receives the request signal REQ1, it forwards the request signal REQ1 to the control device 100, transmits a response signal RES1(4) containing information about the state of luminaire LE(4) to luminaire LE(3), luminaire LE(3) forwards this response signal RES1(4) to luminaire LE(2), luminaire LE(2) forwards this response signal RES1(4) to luminaire LE(1), and luminaire LE(1) forwards this response signal RES1(4) to the control device 100.

[0031] Therefore, if there are no malfunctions in any of the multiple luminaires LE(1) to LE(N) and no breaks in the wiring W, the control device 100 receives the request signal REQ1 transmitted by luminaire LE(N) and receives response signals RES(1) to RES(N) from all of the multiple luminaires LE(1) to LE(N). Then, when the luminaire status confirmation processing unit 112 transmits the response signal REQ1 to the luminaire LE(1) at the first end, if it receives the request signal REQ1 from the luminaire LE(N) at the second end within a predetermined time (timeout time T) and receives response signals RES(1) to RES(N) from all of the multiple luminaires LE(1) to LE(N), it determines that all of the multiple luminaires LE(1) to LE(N) are normal and there are no breaks in the wiring W. The timeout time T is determined appropriately based on the communication speed, the number of luminaires, and the message length of the request signal REQ1 and response signals RES1(1) to RES(N).

[0032] The transmission of the request signal REQ1 by the luminaire status confirmation processing unit 112 should, for example, be performed at predetermined time intervals. In this way, the luminaire status confirmation processing unit 112 can periodically check the status of multiple luminaires LE(1) to LE(N).

[0033] (Broken wire) In the example shown in Figure 3, if the wiring W between luminaire LE(2) and luminaire LE(3) is broken, as shown in Figure 5, the control device 100 can receive response signals RES1(1) and RES1(2) from luminaires LE(1) and LE(2) before the timeout period T elapses after the request signal REQ1 is transmitted. However, since the request signal REQ1 from luminaire LE(2) does not reach luminaire LE(3), the control device 100 cannot receive the request signal RES1 from luminaire LE(4) (the second end luminaire), and therefore cannot receive the response signals RES1(3) and RES1(4) from multiple luminaires LE(3) and LE(4). Therefore, if the request signal RES1 from luminaire LE(4) (the second end luminaire) has not been received before the timeout period T elapses after the request signal REQ1 is transmitted, the luminaire status confirmation processing unit 112 transmits a request signal RES2 to luminaire LE(4) (the second end luminaire). In this case, as shown in Figure 5, the control device 100 can receive the response signals RES2(3) and RES2(4) from the luminaires LE(3) and LE(4) before the timeout period T elapses after the request signal REQ2 is transmitted. However, since the request signal REQ2 from luminaire LE(3) does not reach luminaire LE(2), the control device 100 cannot receive the request signal REQ2 from luminaire LE(1) (the luminaire at the first end), and therefore cannot receive the response signals RES2(1) and RES2(2) from luminaires LE(1) and LE(2).

[0034] In the example shown in Figure 3, as shown in Figure 6, if the wiring between the luminaire LE(1) (the luminaire at the first end) and the control device 100 is broken, the request signal REQ1 from the control device 100 will not reach the luminaire LE(1) (the luminaire at the first end). As a result, the control device 100 will not be able to receive the request signal REQ1 from the luminaire LE(4) (the luminaire at the second end) before the timeout period T elapses after the request signal REQ1 is transmitted, and will not be able to receive all of the response signals RES1(1) to RES1(4) from the multiple luminaires LE(1) to LE(4). Furthermore, as shown in Figure 6, the control device 100 can receive response signals RES2(1) to RES2(4) from all of the multiple luminaires LE(1) to LE(4) before the timeout period T elapses after the request signal REQ2 is transmitted. However, since the request signal REQ2 from luminaire LE(1) (the luminaire at the first end) does not reach the control device 100, the control device 100 cannot receive the request signal REQ2 from luminaire LE(1) (the luminaire at the first end).

[0035] In the example shown in Figure 3, as shown in Figure 7, if the wiring between the luminaire LE(4) (the luminaire at the second end) and the control device 100 is broken, response signals RES1(1) to RES1(4) from all of the luminaires LE(1) to LE(4) can be received before the timeout period T elapses after the request signal REQ1 is transmitted. However, the request signal REQ1 from luminaire LE(4) (the luminaire at the second end) does not reach the control device 100, and therefore the request signal REQ1 from luminaire LE(4) (the luminaire at the second end) cannot be received. Furthermore, as shown in Figure 7, since the request signal REQ2 from the control device 100 does not reach the luminaire LE(4) (the luminaire at the second end), the control device 100 is unable to receive the request signal REQ2 from the luminaire LE(1) (the luminaire at the first end) before the timeout period T elapses after the request signal REQ2 is transmitted, and therefore cannot receive all of the response signals RES2(1) to RES2(4) from the multiple luminaires LE(1) to LE(4).

[0036] Therefore, the luminaire status confirmation processing unit 112, if it has not received a request signal from the luminaire at the second end when it has sent a request signal to the luminaire at the first end, sends the request signal to the luminaire at the second end. If it has not received a response signal from some of the luminaires (the first part) of the multiple luminaires when it has sent the request signal to the luminaire at the first end, but has received a response signal from all of the luminaires in the first part when it has sent a request signal to the luminaire at the second end, it determines that all of the multiple luminaires are functioning normally and that there is a break in the wiring.

[0037] In the example shown in Figure 5, the luminaires in the first section are luminaires LE(3) and LE(4), while the luminaires outside the first section are luminaires LE(1) and LE(2). The wiring between luminaire LE(3), which is the firstmost luminaire in the first section, and luminaire LE(2), which is the secondmost luminaire outside the first section, is broken.

[0038] Therefore, the luminaire status confirmation processing unit 112 determines that if the number of luminaires in the first section is not zero, and the number of luminaires outside the first section is not zero, then the wiring between the firstmost luminaire in the first section and the secondmost luminaire in the first section is broken.

[0039] In the example shown in Figure 6, the luminaires in the first section are luminaires LE(1) to LE(4), and the number of luminaires outside the first section is zero. Furthermore, the wiring between the control device 100 (control unit 110) and luminaire LE(1) (the luminaire at the first end) is broken.

[0040] Therefore, the lighting fixture status confirmation processing unit 112 determines that if the number of lighting fixtures other than the first part is zero, the wiring between the control device 100 (control unit 110) and the lighting fixture at the first end is broken.

[0041] In the example shown in Figure 7, the number of luminaires in the first section is zero, and the luminaires other than those in the first section are luminaires LE(1) to LE(4). Furthermore, the wiring between the control device 100 (control unit 110) and luminaire LE(4) (the luminaire at the second end) is broken.

[0042] Therefore, if the number of luminaires in the first section is zero, the luminaire status confirmation processing unit 112 determines that the wiring between the control device 100 (control unit 110) and the luminaire at the second end is broken.

[0043] Thus, in this embodiment, it is possible to check for breaks in the wiring connecting the luminaires and the wiring connecting the luminaires and the control device. Furthermore, in this embodiment, it is also possible to identify the location of the broken wiring.

[0044] (Light fixture malfunction) In the example shown in Figure 3, if luminaire LE(3) is faulty, as shown in Figure 8, the control device 100 can receive response signals RES1(1) and RES1(2) from luminaires LE(1) and LE(2) before the timeout period T elapses after the request signal REQ1 is transmitted, but it cannot receive the request signal RES1 from luminaire LE(4) (the second end luminaire), and therefore cannot receive the response signals RES1(3) and RES1(4) from luminaires LE(3) and LE(4). Also, as shown in Figure 8, the control device 100 can receive the response signal RES2(4) from luminaire LE(4) before the timeout period T elapses after the request signal REQ2 is transmitted, but it cannot receive the request signal REQ2 from luminaire LE(1) (the first end luminaire), and therefore cannot receive the response signals RES2(1), RES2(2), and RES2(3) from luminaires LE(1), LE(2), and LE(3).

[0045] Furthermore, in the example shown in Figure 3, as shown in Figure 9, if the luminaires LE(2) and LE(3) are malfunctioning, the control device 100 can receive the response signal RES1(1) from luminaire LE(1) before the timeout period T elapses after the request signal REQ1 is transmitted, but it cannot receive the request signal REQ1 from luminaire LE(4) (the luminaire at the second end), and therefore cannot receive the response signals RES1(2), RES1(3), and RES1(4) from luminaires LE(2), LE(3), and LE(4). Furthermore, as shown in Figure 9, the control device 100 can receive the response signal RES2(4) from the luminaire LE(4) before the timeout period T elapses after the request signal REQ2 is transmitted, but it cannot receive the request signal REQ2 from luminaire LE(1) (the luminaire at the first end), and therefore cannot receive the response signals RES2(1), RES2(2), and RES2(3) from the multiple luminaires LE(1), LE(2), and LE(3).

[0046] Furthermore, in the example shown in Figure 3, if luminaires LE(1) and LE(3) are malfunctioning, as shown in Figure 10, the control device 100 will not be able to receive the request signal REQ1 from luminaire LE(4) (the luminaire at the second end) within the timeout period T after the request signal REQ1 is transmitted, and will not be able to receive all of the response signals RES1(1) to RES1(4) from the multiple luminaires LE(1) to LE(4). Also, as shown in Figure 10, the control device 100 will be able to receive the response signal RES2(4) from luminaire LE(4) within the timeout period T after the request signal REQ2 is transmitted, but will not be able to receive the request signal REQ2 from luminaire LE(1) (the luminaire at the first end), and will not be able to receive the response signals RES2(1), RES2(2), and RES2(3) from luminaires LE(1), LE(2), and LE(3).

[0047] Therefore, in this embodiment, if the luminaire status confirmation processing unit 112 has not received a response signal from some of the multiple luminaires LE(1) to LE(N) (the luminaire at the first end) when it has sent a request signal REQ1 to luminaire LE(1) (the luminaire at the first end), and has not received a response signal from some of the luminaires in the first part (the luminaire at the second end) when it has sent a request signal REQ2 to luminaire LE(N) (the luminaire at the second end), then it determines that there is a faulty luminaire among the multiple luminaires LE(1) to LE(N). Here, the number of luminaires in the second part is not zero. Also, at this time, the luminaire status confirmation processing unit 112 determines that the luminaire at the very first end of the luminaires in the first part and the luminaire at the very second end of the luminaires in the second part are faulty.

[0048] In the example shown in Figure 8, luminaires LE(3) and LE(4) are luminaires in the first part, luminaire LE(3) is a luminaire in the second part, and the faulty luminaire LE(3) is the luminaire at the very first end of the luminaires in the first part, and the luminaire at the very second end of the luminaires in the second part.

[0049] In the example shown in Figure 9, luminaires LE(2), LE(3), and LE(4) are the luminaires of the first part, luminaires LE(2) and LE(3) are the luminaires of the second part, the faulty luminaire LE(2) is the luminaire at the very first end of the first part, and the faulty LE(3) is the luminaire at the very second end of the second part.

[0050] In the example shown in Figure 10, luminaires LE(1), LE(2), LE(3), and LE(4) are the luminaires of the first part, luminaires LE(1), LE(2), and LE(3) are the luminaires of the second part, the faulty luminaire LE(1) is the luminaire at the very first end of the first part, and the faulty LE(3) is the luminaire at the very second end of the second part.

[0051] In the example shown in Figure 3, if luminaires LE(1), LE(2), and LE(3) are faulty, as shown in Figure 11, the control device 100 will not be able to receive the request signal REQ1 from luminaire LE(4) (the second end luminaire) within the timeout period T after the request signal REQ1 is transmitted, similar to the example shown in Figure 10, and will not be able to receive all of the response signals RES1(1) to RES1(4) from the multiple luminaires LE(1) to LE(4). Also, as shown in Figure 11, the control device 100 will be able to receive the response signal RES2(4) from luminaire LE(4) within the timeout period T after the request signal REQ2 is transmitted, similar to the example shown in Figure 10, but will not be able to receive the request signal REQ2 from luminaire LE(1) (the first end luminaire), and will not be able to receive the response signals RES2(1), RES2(2), and RES2(3) from luminaires LE(1), LE(2), and LE(3).

[0052] In other words, if luminaires LE(1) and LE(3) are malfunctioning, the luminaire status confirmation processing unit 112 cannot determine whether luminaire LE(2) is functioning correctly, as shown in the example in Figure 10, or whether luminaire LE(2) is malfunctioning, as shown in the example in Figure 11, simply by sending and receiving the request signal and receiving the response signal as described above. However, since there is a possibility that luminaire LE(2) is malfunctioning, the user needs to check the status of luminaire LE(2). Therefore, in such a case, it is best for the control device 100 to notify the user that luminaire LE(2) is a luminaire that requires user confirmation.

[0053] Therefore, the luminaire status confirmation processing unit 112 should determine that the luminaire between the first-to-last luminaire of the first part and the second-to-last luminaire of the second part is a luminaire that needs confirmation. In the example shown in Figures 10 and 11, luminaire LE(2) is the luminaire between the first-to-last luminaire of the first part (luminaire LE(1)) and the second-to-last luminaire of the second part (luminaire LE(3)).

[0054] (ID not assigned) Each of the multiple luminaires LE(1) to LE(N) is assigned an ID number. The ID numbers are assigned sequentially starting from the first luminaire in the series-connected luminaires LE(1) to LE(N). Therefore, in the example shown in Figure 3, luminaire LE(1) is assigned ID number 1, luminaire LE(2) is assigned ID number 2, luminaire LE(3) is assigned ID number 3, and luminaire LE(4) is assigned ID number 4.

[0055] If there is a luminaire among the multiple luminaires LE(1) to LE(N) that has not been assigned an ID, as shown in Figure 12, the control device 100 can receive the request signal REQ1 from luminaire LE(4) (the luminaire at the second end) before the timeout period T elapses after the request signal REQ1 is transmitted, but it cannot receive the response signal from the luminaire that has not been assigned an ID (in the example shown in Figure 12, luminaire LE(2)). Also in this case, as shown in Figure 12, the control device 100 can receive the request signal REQ2 from luminaire LE(1) (the luminaire at the first end) before the timeout period T elapses after the request signal REQ2 is transmitted, but it cannot receive the response signal from the luminaire that has not been assigned an ID (in the example shown in Figure 12, luminaire LE(2)).

[0056] Therefore, when the luminaire status confirmation processing unit 112 sends a request signal REQ1 to the first end luminaire LE(1), if there is a luminaire that has received a request signal REQ1 from the second end luminaire LE(N) but has not received a response signal within the timeout period T after the request signal REQ1 is sent, it is appropriate to determine that there is a luminaire that has not been assigned an ID. In this case, the luminaire status confirmation processing unit 112 may also determine that a luminaire that has not received a response signal has not been assigned an ID.

[0057] Furthermore, when a request signal REQ1 is sent to the first end luminaire LE(1), if there is a luminaire that has received a request signal from the second end luminaire LE(N) but has not received a response signal, the luminaire status confirmation processing unit 112 may also send a request signal REQ2 to the second end luminaire LE(N). Then, if the luminaire status confirmation processing unit 112 has not received a response signal from the luminaire that has received a request signal REQ2 from the first end luminaire LE(1) but has not received a response signal from the luminaire that has not received a response signal within the timeout period T after the request signal REQ2 is sent, it may determine that the luminaire that has not received a response signal has not been assigned an ID.

[0058] (Processing operation in the lighting fixture status confirmation processing unit 112) Figure 13 shows an example of processing operations in the lighting fixture status confirmation processing unit 112. The processing operations shown in Figure 13 are executed, for example, at predetermined time intervals.

[0059] The luminaire status confirmation processing unit 112 transmits a request signal REQ1 to the first end luminaire L(1) (step S1301). If the request signal REQ1 is received from the second end luminaire LE(N) before the timeout period T elapses after the request signal REQ1 is transmitted (step S1302, YES), the luminaire status confirmation processing unit 112 checks whether it has received response signals from all of the multiple luminaires LE(1) to LE(N) before the timeout period T elapses after the request signal REQ1 is transmitted (step S1303).

[0060] If response signals are received from all of the multiple luminaires LE (step S1303, YES), the luminaire status confirmation processing unit 112 determines that all of the multiple luminaires LE(1) to LE(N) are normal, that there are no breaks in the wiring W, and that the wiring W is normal (step S1304). If there are any luminaires that have not received a response signal (step S1303, NO), the luminaire status confirmation processing unit 112 determines that there are luminaires that have not been assigned an ID (step S1305).

[0061] If the request signal REQ1 has not been received from the second end luminaire LE(N) within the timeout period T after the request signal REQ1 has been transmitted (step S1302, NO), the luminaire status confirmation processing unit 112 transmits the request signal REQ2 to the second end luminaire L(N) (step S1306), and within the timeout period T after the request signal REQ2 has been transmitted, it checks whether it has received response signals from all of the luminaires in the portion (first portion) that did not receive a response signal when the request signal REQ1 was transmitted to the first end luminaire LE(1) (step S1307).

[0062] If response signals are received from all of the first part within the timeout period T elapsed after the request signal REQ2 is transmitted (S1307, YES), the luminaire status confirmation processing unit 112 determines that all of the multiple luminaires LE(1) to LE(N) are normal and that there is a break in the wiring (step S1308). If response signals are not received from some of the luminaires in the first part (the second part) within the timeout period T elapsed after the request signal REQ2 is transmitted (step S1307, NO), the luminaire status confirmation processing unit 112 determines that there is a faulty luminaire among the multiple luminaires LE(1) to LE(N) (step S1309).

[0063] <Example of display by display unit 120> The display processing unit 113 switches the screen displayed on the display unit 120 based on the information input from the input unit 130. The screens displayed on the display unit 120 include, for example, the overall monitoring screen which is the first screen, a monitoring screen that displays the individual control contents and status of the luminaires LE(1) to LE(N) in each system, an individual monitoring screen that displays the individual control contents and status of the luminaires LE(1) to LE(N), a control screen for changing the control contents of the luminaires LE(1) to LE(N) in each system, a communication status screen that displays the communication status of the luminaires LE(1) to LE(N) in each system, a history display screen that displays the operation history (e.g., control content change history) and fault history (e.g., fault history of luminaires LE(1) to LE(N)), a time setting screen for setting the time, a wiring check screen for monitoring the wiring status, a direct / remote confirmation screen for setting whether control by the input unit 130 is possible, and a maintenance screen that displays buttons to move to the normal status screen, operation screen, history display screen, time setting screen, and direct / remote confirmation screen.

[0064] (Comprehensive monitoring screen) Figure 14 shows an example of the integrated monitoring screen. In the example shown in Figure 14, the words "Integrated Monitoring Screen" are displayed in the "Screen" column to indicate that the integrated monitoring screen is being displayed. The integrated monitoring screen displays, for example, the control details of luminaires LE(1) to LE(N) by the luminaire control processing unit 111, and the status of luminaires LE(1) to LE(N) as confirmed by the luminaire status confirmation processing unit 112, as shown in Figure 14.

[0065] When the control device 100 controls systems other than the system consisting of multiple luminaires LE(1) to LE(N), the luminaire control processing unit 111 displays the control details for each system on the overall monitoring screen. In the example shown in Figure 14, the control device 100 controls luminaires in a second system in addition to the first system consisting of multiple luminaires LE(1) to LE(N). The control details for the first system are displayed in the "First System" column, and the control details for the second system are displayed in the "Second System" column. The item names may be other than "First System" and "Second System," and should be set as appropriate.

[0066] As described above, the lighting control processing unit 111 controls the brightness of multiple lighting fixtures LE(1) to LE(N) based on the weather outside the tunnel detected by the weather detection sensor, the information input by the input unit 130, or the information from a higher-level device. In the example shown in Figure 14, the control pattern based on the weather outside the tunnel detected by the weather detection sensor is displayed in the "Automatic Control" column, the control pattern based on the information input by the input unit 130 is displayed in the "Input Control" column, and the control pattern based on the information from a higher-level device is displayed in the "Higher-Level Control" column. The item names may be other than "Automatic Control," "Input Control," and "Higher-Level Control," and should be set as appropriate.

[0067] In the example shown in Figure 14, the "Interlocking Indicator" column indicates whether multiple luminaires LE(1) to LE(N) in each system are controlled to be interlocked. In the example shown in Figure 14, the difference in color indicates whether or not interlocking control is enabled. In the example shown in Figure 14, a white circle indicates that interlocking control is not enabled, and a black circle indicates that interlocking control is enabled. In the example shown in Figure 14, the luminaires in the first system are indicated as interlocked, while the luminaires in the second system are not. The item name can be something other than "Interlocking Indicator," and should be set as appropriate.

[0068] In the example shown in Figure 14, the status of luminaires LE(1) to LE(N), as confirmed by the luminaire status confirmation processing unit 112, is displayed in the "Luminaire Status" column. In the example shown in Figure 14, the status of luminaires LE(1) to LE(N) is indicated by different colors. In the example shown in Figure 14, white circles indicate a normal state, and black circles indicate a malfunction state. In the example shown in Figure 14, the status of the luminaires in the first system is a malfunction state, and the status of the luminaires in the second system is a normal state. The item name can be something other than "Luminaire Status," and should be set as appropriate.

[0069] The display processing unit 113 may also display the status of the weather detection sensor on the overall monitoring screen. In the example shown in Figure 14, the status of the weather detection sensor is displayed in the "Sensor Status" column. In the example shown in Figure 14, the status of the weather detection sensor is indicated by different colors. In the example shown in Figure 14, white circles indicate a normal state, and black circles indicate a fault state. In the example shown in Figure 14, the weather detection sensor of the first system is in a fault state, and the weather detection sensor of the second system is in a normal state. The item name may be something other than "Sensor Status," and should be set as appropriate.

[0070] In the example shown in Figure 14, the "Automatic / Manual" column indicates whether the control is automatic (control based on weather conditions outside the tunnel detected by a weather detection sensor) or manual (control based on information input by the input unit 130, or control based on information from a higher-level device). In the example shown in Figure 14, the word "Automatic" indicates automatic control, and the word "Manual" indicates manual control. In the example shown in Figure 14, the first system is controlled manually, and the second system is controlled automatically. The item name can be something other than "Automatic / Manual," and should be set as appropriate.

[0071] In the example shown in Figure 14, the "Distant / Direct" column indicates whether or not the brightness of multiple luminaires LE(1) to LE(N) can be controlled by the input unit 130 during manual control. In the example shown in Figure 14, the word "Direct" is displayed in the "Distant / Direct" column, indicating that control by the input unit 130 is possible. The item name can be something other than "Distant / Direct," and should be set as appropriate.

[0072] Furthermore, if the input unit 130 is a touch panel, the display processing unit 113 displays buttons BC1 and BC2 on the overall monitoring screen, as shown in Figure 14, for moving to the monitoring screen. In the example shown in Figure 14, the parts displaying the item names of each system are buttons, with the words "First System" displayed on button BC1 for moving to the monitoring screen of the first system, and the words "Second System" displayed on button BC2 for moving to the monitoring screen of the second system.

[0073] Furthermore, if the input unit 130 is a touch panel, the display processing unit 113 displays, on the overall monitoring screen, a button BM for moving to the maintenance screen and a button BS for moving to the direct / remote confirmation screen, as shown in Figure 14.

[0074] (Monitoring screen) Figure 15 shows an example of a monitoring screen. When the control device 100 controls lighting fixtures in multiple systems, a monitoring screen exists for each system, and as shown in Figure 15, the monitoring screen displays the individual control content and status of lighting fixtures LE(1) to LE(N) in each system. In the example shown in Figure 15, the words "Monitoring Screen" are displayed in the "Screen" column and the words "System 1" are displayed in the "System" column to indicate that the monitoring screen for the first system is being displayed.

[0075] Furthermore, in the example shown in Figure 15, the number "100" is displayed in the "Number of Lights" column to indicate that there are 100 light fixtures, the word "Manual" is displayed in the "Automatic / Manual" column to indicate that the light fixtures of the first system are controlled manually, a black circle is displayed in the "Interlocking Indicator" column to indicate that the light fixtures of the first system are controlled in an interlocking manner, and the word "Sunny" is displayed in the "Control Pattern" column to indicate that the control pattern of the first system is suitable for sunny weather.

[0076] In the example shown in Figure 15, since the first system has 100 light fixtures, the 100 fixtures are divided into 5 rows, and the status of 20 fixtures is displayed in each row. If the system contains 100 or more light fixtures, the monitoring screen for that system is divided into multiple pages. If the input unit 130 is a touch panel, the display processing unit 113 displays buttons BA1, BA2, BA3, and BA4 on the monitoring screen to move to other pages, as shown in Figure 15.

[0077] Each luminaire in the first system is assigned a luminaire number in addition to an ID number. The luminaire numbers are assigned, for example, in the order in which the luminaires are arranged in the tunnel. In the example shown in Figure 15, the first row shows the status of luminaires numbered 1 through 20, the second row shows the status of luminaires numbered 21 through 40, ..., and the fifth row shows the status of luminaires numbered 81 through 100. In each row, vertical lines are displayed every five circles to make it easier to understand which circle represents which luminaire number. In the example shown in Figure 15, the vertical lines between numbers 5 and 6, and between numbers 15 and 16 are dashed lines, while the vertical line between numbers 10 and 11 is a solid line. The luminaire numbers are assigned, for example, in order from the luminaires closest to the tunnel entrance.

[0078] In the example shown in Figure 15, each light fixture in the first system is displayed as either off, under linked control with other light fixtures (linked control), under independent control (individual control), or malfunctioning. In the example shown in Figure 15, white circles indicate off, black circles indicate linked control, circles with horizontal hatching indicate individual control, and circles with vertical hatching indicate malfunction. In the example shown in Figure 15, light fixture number 95 is off, light fixture number 48 is under individual control, and light fixture number 10 is malfunctioning. Malfunctions can also be divided into communication errors and non-communication errors, and each can be displayed with a different indicator.

[0079] If the input unit 130 is a touch panel, the display processing unit 113 displays, as shown in Figure 15, a button BT for moving to the overall monitoring screen, a button BSI for moving to the individual monitoring screen, a button BS for moving to the direct / remote confirmation screen, and a button BO for moving to the control screen. When the user presses the individual monitoring screen, it is preferable to display a numeric keypad as shown in Figure 16, allowing the user to input the light fixture number of the light fixture whose status they wish to check.

[0080] Furthermore, if the input unit 130 is a touch panel, as shown in Figure 15, buttons BA5 and BA6 for moving to the monitoring screen of other systems may be displayed on the monitoring screen. This makes it possible to move to the monitoring screen of other systems without returning to the main monitoring screen.

[0081] (History display screen) Figure 17 shows an example of the history display screen. The display processing unit 113 displays the operation history (e.g., history of changes in control content) and the failure history (e.g., failure history of lighting fixtures LE(1) to LE(N)) on the history display screen, as shown in Figure 17. In the example shown in Figure 17, five history entries are displayed.

[0082] If the input unit 130 is a touch panel, the display processing unit 113 displays, on the history display screen, a button BH1 for displaying the most recent history, a button BH2 for displaying the oldest history, a button BH3 for displaying multiple history entries immediately preceding the currently displayed history, and a button BH4 for displaying multiple history entries immediately following the currently displayed history, as shown in Figure 17. Also, if the input unit 130 is a touch panel, the display processing unit 113 displays, on the history display screen, a button BT for moving to the comprehensive monitoring screen and a button BM for moving to the maintenance screen, as shown in Figure 17.

[0083] The number of failure histories is small compared to the number of operation histories. Therefore, if operation histories and failure histories are displayed together, it is difficult to find the desired failure histories from the displayed history. To address this, if the input unit 130 is a touch panel, the display processing unit 113 may display a button BH5 for displaying only operation histories and a button BH6 for displaying only failure histories, as shown in Figure 17.

[0084] (Wiring check screen) Figures 18-21 show examples of wiring check screens. When the control device 100 controls multiple systems, a wiring check screen exists for each system, and as shown in Figures 18-21, the wiring check screen displays the individual status of the luminaires LE(1) to LE(N) in each system. In the monitoring screen shown in Figure 15, the individual status of multiple luminaires LE(1) to LE(N) was displayed in order of luminaire number, but in the wiring check screen, the individual status of multiple luminaires LE(1) to LE(N) is displayed in order of ID number. Therefore, the wiring check screen makes it possible to check which part of the multiple luminaires LE(1) to LE(N) connected in series has experienced a malfunction. The example shown in Figures 18-21 is an example of a wiring check screen when the first system consists of the four luminaires LE(1) to LE(4) shown in Figure 3.

[0085] In the examples shown in Figures 18-21, the words "Wiring Check Screen" are displayed in the "Screen" column and the words "First System" are displayed in the "System" column to indicate that the wiring check screen for the first system is being displayed. Also in the examples shown in Figures 18-21, the number "4" is displayed in the "Number of Light Fixtures" column to indicate that there are 4 light fixtures in the first system, the word "Manual" is displayed in the "Automatic / Manual" column to indicate that the light fixtures in the first system are being controlled manually, a black circle is displayed in the "Interlocking Indicator" column to indicate that the light fixtures in the first system are being controlled in an interlocking manner, and the word "Sunny" is displayed in the "Control Details" column to indicate that the control pattern for the first system is suitable for sunny weather.

[0086] Figure 18 shows an example of the wiring check screen display for the example shown in Figure 5. In the example shown in Figure 5, the wiring W between light fixture LE(2) and light fixture LE(3) is broken. To indicate that the wiring W between light fixture LE(2) and light fixture LE(3) requires user verification, in the example shown in Figure 18, light fixtures LE(2) and LE(3) are not faulty, but are indicated as faulty with black circles. Light fixtures LE(1) and LE(2), which are not faulty and do not require user verification, are indicated as not faulty with white circles.

[0087] Figure 19 shows an example of the wiring check screen display for the example shown in Figure 6. In the example shown in Figure 6, the wiring W between the luminaire LE(1) and the control device 100 is broken. To indicate that the wiring between the luminaire LE(1) and the control device 100 needs to be checked by the user, in the example shown in Figure 19, luminaire LE(1) is not faulty, but is indicated as faulty with a black circle. Luminaires LE(2), LE(3), and LE(4), which are not faulty and do not require user check, are indicated as not faulty with white circles.

[0088] Figure 20 shows an example of the wiring check screen display for the example shown in Figure 8. In the example shown in Figure 8, light fixture LE(3) is faulty. To indicate that light fixture LE(3) is faulty, in the example shown in Figure 20, light fixture LE(3) is indicated as faulty with a black circle, while light fixtures LE(1), LE(2), and LE(4), which are not faulty and do not require user confirmation, are indicated as not faulty with white circles.

[0089] Figure 21 shows an example of the wiring check screen display for the example shown in Figure 10. In the example shown in Figure 10, light fixtures LE(1) and LE(3) are faulty. To indicate that light fixture LE(3) is faulty, in the example shown in Figure 21, light fixtures LE(1) and LE(3) are indicated as faulty with black circles, and light fixture LE(2), which requires user verification, is also indicated as faulty with a black circle. In the example shown in Figure 21, light fixture LE(4), which is not faulty and does not require user verification, is indicated as not faulty with a white circle.

[0090] In the example shown in Figures 18-21, 100 luminaires are divided into 5 rows, and the status of 20 luminaires can be displayed in each row. If there are 100 or more luminaires in the system, the wiring check screen for that system can be divided into multiple pages, and if the input unit 130 is a touch panel, the display processing unit 113 may display buttons BB1, BB2, BB3, and BB4 on the wiring check screen to move to other pages, as shown in Figures 18-21. If the input unit 130 is a touch panel, the display processing unit 113 may also display buttons BT to move to the comprehensive monitoring screen, BM to move to the maintenance screen, and BS to move to the direct / remote confirmation screen, as shown in Figures 18-21. Furthermore, if the input unit 130 is a touch panel, buttons BB5 and BB6 to move to the wiring check screens of other systems may be displayed on the wiring check screen.

[0091] The present invention has been described above with reference to preferred embodiments. Although the present invention has been described with reference to specific examples, various modifications and changes can be made to these examples without departing from the spirit and scope of the invention as described in the claims. [Explanation of Symbols]

[0092] 100 Control device 110 Control Unit 111 Lighting control processing unit 112 Lighting fixture status confirmation processing unit 113 Display Processing Unit 120 Display section 130 Input section 140 First Communications Department 150 Second Communications Department

Claims

1. An information processing device having a lighting fixture status confirmation processing unit that checks the status of multiple lighting fixtures, The aforementioned multiple luminaires are connected in series by wiring, The aforementioned information processing device is The wiring is connected to the first and second end luminaires of the series-connected plurality of luminaires, Each of the aforementioned plurality of light fixtures is If a signal is received from one side, the signal is forwarded to the other side. If the signal received from one side is a request signal, the request signal is forwarded to the other side, and a response signal is sent to the other side. The aforementioned lighting fixture status confirmation processing unit: If the request signal is transmitted to the first end light fixture but the request signal has not been received from the second end light fixture, then the request signal is transmitted to the second end light fixture. An information processing device that determines that there is a break in the wiring if, when the request signal is transmitted to the first end light fixture, no response signals are received from the first portion of the plurality of light fixtures, but when the request signal is transmitted to the second end light fixture, response signals are received from all of the first portion of the light fixtures.

2. The information processing device according to claim 1, wherein the lamp status confirmation processing unit determines that if the number of lamps in the first part is not zero and the number of lamps other than the first part is not zero, then the wiring between the first-most lamp among the lamps in the first part and the second-most lamp among the lamps other than the first part is broken.

3. The information processing device according to claim 2, wherein the lamp status confirmation processing device determines that if the number of lamps other than the first part is zero, the wiring between the information processing device and the lamp at the first end is broken.

4. The information processing device according to claim 2 or 3, wherein the lamp status confirmation processing device determines that if the number of lamps in the first part is zero, the wiring between the information processing device and the lamp at the second end is broken.

5. The information processing device according to claim 1, wherein the lamp status confirmation processing device receives the request signal from the second end lamp when it transmits the request signal to the first end lamp, and if it receives response signals from all of the plurality of lamps, it determines that there is no break in the wiring.

6. If the lamp status confirmation processing unit does not receive a response signal from the second part of the lamps in the first part when it transmits the request signal to the lamp at the second end, it determines that there is a faulty lamp among the plurality of lamps. The information processing apparatus according to claim 1 or 5, wherein the number of luminaires in the second part is not zero.

7. The information processing device according to claim 6, wherein the lamp status confirmation processing unit determines that the lamp at the first end of the lamps in the first part and the lamp at the second end of the lamps in the second part are malfunctioning.

8. The information processing device according to claim 7, wherein the lamp status confirmation processing unit determines that the lamps between the first-end lamp of the first portion and the second-end lamp of the second portion are lamps that require confirmation by the user.

9. An information processing method performed by an information processing device, It has a lighting fixture status confirmation process that checks the status of multiple lighting fixtures, The aforementioned multiple luminaires are connected in series by wiring, The aforementioned information processing device is The wiring is connected to the first and second end luminaires of the series-connected plurality of luminaires, Each of the aforementioned plurality of light fixtures is If a signal is received from one side, the signal is forwarded to the other side. If the signal received from one side is a request signal, the request signal is forwarded to the other side, and a response signal is sent to the other side. The aforementioned lighting fixture status confirmation process is: The steps include transmitting the request signal to the lamp at the first end, If the request signal has not been received from the second end light fixture when the request signal has been transmitted to the first end light fixture, the step of transmitting the request signal to the second end light fixture is to be performed. An information processing method comprising the step of determining that a break in the wiring exists if, when the request signal is transmitted to the lamp at the first end, no response signals are received from the lamps of the first portion of the plurality of lamps, and when the request signal is transmitted to the lamp at the second end, response signals are received from all of the lamps of the first portion.

10. An information processing program that causes a computer to execute the information processing method described in claim 9.

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