Lighting device control system, control device, and lighting device

Abstract

To provide a lighting device control system, a control device, and a lighting device that can easily identify each lighting device, i.e., assign an ID.SOLUTION: A lighting device control system according to an embodiment of the present invention includes a control device and a lighting device. The control device includes an output unit that outputs an identification signal that enables each lighting device to be identified, and a receiving unit that receives a response signal to the identification signal from the lighting device. The lighting device includes a response unit that outputs the response signal, and a relay operation unit that closes a relay on the basis of the timing of outputting the response signal.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present invention relates to a lighting fixture control system that controls a plurality of lighting fixtures arranged in, for example, a tunnel, a control device, and a lighting fixture. [Background technology]

[0002] Conventionally, when controlling a plurality of lighting fixtures arranged in a tunnel or the like, a number is assigned to each lighting fixture in order to identify them.

[0003] For example, Patent Document 1 describes a tunnel lighting system for a tunnel equipped with entrance lighting placed near the entrance of the tunnel and basic lighting placed at regular intervals inside the tunnel. In this tunnel lighting system, it is described that an address setting command is sent by a tunnel controller from the leading lighting fixture to lighting fixtures downstream in sequence, and addresses are automatically set. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2011-18467 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in Patent Document 1, each lighting fixture is automatically set so that the address monotonically increases or decreases in sequence starting from the tunnel controller, and a lighting fixture that receives an address setting instruction transmits a reception response to an upstream lighting fixture. In other words, whether the address was set correctly is determined when address setting for all lighting fixtures has been completed, which takes time when there are a large number of lighting fixtures. Also, if a lighting fixture malfunctions among the lighting fixtures from upstream to downstream, the address must be set again.

[0006] In view of the above circumstances, an object of the present invention is to provide a lighting fixture control system, a control device, and a lighting fixture that can easily identify each lighting fixture, i.e., assign an ID to each lighting fixture. [Means for solving the problem]

[0007] In order to achieve the above object, a lamp control system according to one embodiment of the present invention includes a control device and a lamp. The control device has an output section that outputs an identification signal that enables each luminaire to be identified, and a receiving section that receives a response signal to the identification signal from the luminaire. The lighting device has a response section that outputs the response signal, and a relay operation section that closes a relay based on the timing at which the response signal is output.

[0008] The above-mentioned lighting control system includes a control device having an output unit that outputs an identification signal that enables each lighting device to be identified, a receiver unit that receives a response signal from the lighting device in response to the identification signal, a response unit that outputs the response signal, and a relay operation unit that closes the relay based on the timing of outputting the response signal. This makes it easy to assign IDs.

[0009] The identification signal includes a unique number that enables the luminaire to be identified, In this case, when the response section outputs the response signal, the response section may set the unique number in the luminaire.

[0010] The output section may output a confirmation signal for confirming the luminaire to which the unique number is set.

[0011] The response unit may respond to the confirmation signal when the unique number confirmed by the confirmation signal matches a unique number set in the luminaire.

[0012] The output unit may output a confirmation signal confirming a number different from the unique number confirmed by the confirmation signal when a response to the output confirmation signal is received from the response unit.

[0013] The output unit may output a notification signal notifying that the identification signal will be transmitted.

[0014] The relay operating unit may open the relay based on the timing at which the notification signal is received.

[0015] the notification signal includes a delay time that delays the time before the relay is opened; In this case, the relay operating unit may open the relay at a timing when the notification signal is received and the delay time has elapsed.

[0016] The output unit may output the notification signal a plurality of times.

[0017] The output unit outputs the notification signal at predetermined time intervals, In this case, the delay time may be set based on the predetermined time interval.

[0018] The identification signal includes a unique number that enables the luminaire to be identified, In this case, when the response unit outputs the response signal, the response unit sets the unique number in the luminaire, In this case, the notification signal may include initialization of the unique number set in the luminaire.

[0019] The output unit may output an identification signal including the same unique number as the output unique number a predetermined number of times when a response signal to the identification signal including the output unique number is not received.

[0020] The output section may stop outputting the identification signal when there is no response to an identification signal including the same unique number as the unique number output the predetermined number of times. Lighting control system.

[0021] The response section may stop outputting the response signal when the unique number is set to the luminaire.

[0022] The identification signal includes an address and data, In this case, the response section may output the response signal when a match is found between the address and the inverse of the address, and between the data and the inverse of the data.

[0023] In order to achieve the above object, a control device according to one embodiment of the present invention includes an output unit and a receiving unit. The output section outputs an identification signal that enables each of the luminaires to be identified. The receiving section receives a response signal to the identification signal from the lighting fixture.

[0024] In order to achieve the above object, a lighting fixture according to one aspect of the present invention includes a response unit and a relay operation unit. The responding section outputs a response signal to the identification signal that enables each of the luminaires to be identified. The relay operation unit closes the relay based on the timing at which the response signal is output. Effect of the Invention

[0025] As described above, according to the present invention, it is possible to easily assign IDs. [Brief description of the drawings]

[0026] [Figure 1] FIG. 1 is a diagram illustrating a lighting control system. [Diagram 2] FIG. 2 is a diagram illustrating a communication method between a control device and a group of lighting fixtures. [Diagram 3] FIG. 2 is a diagram illustrating a schematic configuration of a transmission format. [Figure 4] FIG. 2 is a diagram illustrating a schematic configuration of a transmission format. [Diagram 5] FIG. 2 is a diagram showing a schematic configuration of a lighting fixture. [Figure 6] FIG. 1 is a diagram illustrating an example of the configuration of a lighting control system. [Figure 7]FIG. 4 is a diagram showing the wiring pattern of the lighting fixture. [Figure 8] FIG. 11 is a state transition diagram in the reception process of the lighting fixture. [Figure 9] 10 is a flowchart showing a response output of a lighting fixture. [Figure 10] FIG. 11 is a sequence diagram showing the allocation of IDs to each luminaire. [Figure 11] FIG. 11 is a sequence diagram showing ID allocation when one luminaire is restarted. [Figure 12] FIG. 13 is a sequence diagram showing ID allocation when two luminaires are restarted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0028] Fig. 1 is a diagram showing a schematic diagram of a luminaire control system according to an embodiment of the present invention. Fig. 1A is a block diagram showing a functional configuration of the luminaire control system. Fig. 1B is a diagram showing an example of the configuration of a control device and a group of luminaires.

[0029] As shown in FIG. 1, the lighting fixture control system 100 includes a commercial power source 10, a control device 20, and a group of lighting fixtures 30.

[0030] The commercial power source 10 outputs an AC voltage to the control device 20. For example, the commercial power source 10 is a power source having a voltage of 200 V and a frequency of 50 or 60 Hz. In this embodiment, the voltage from the commercial power source 10 is supplied to the communication conversion unit 23.

[0031] The control device 20 has an operation unit 21, a control unit 22, and a communication conversion unit 23. In this embodiment, the control device 20 assigns numbers (IDs) for identifying each of the luminaires in a group 30 of luminaires, which will be described later. For example, an ID is assigned to each luminaire, such that the first luminaire is called luminaire 1, the second luminaire connected to the first luminaire is called luminaire 2, and so on.

[0032] The operation unit 21 can control the allocation of IDs to each luminaire by inputting an operation by the user or the like. In this embodiment, the operation unit 21 outputs a control signal to the control unit 22 to perform ID allocation, which is input by remote operation by the user using a PC or the like. For example, when the user inputs a command to execute ID allocation, the operation unit 21 outputs the control signal to the control unit 22, and an ID is automatically assigned to the luminaire. This is not limited to the above, and for example, the operation unit 21 may automatically assign an ID by pressing a predetermined switch such as "start ID allocation". Also, for example, the operation unit 21 may be a touch panel or the like, and the user may manually (manually work one by one) set an ID for each luminaire via the touch panel. In addition, the operation unit 21 may be a display that displays various statuses regarding ID allocation of luminaires, such as confirmation of the ID of each luminaire, the total number of IDs (luminaires), and whether there are any luminaires to which an ID has not been assigned. Also, the user's operation may not be input for ID allocation. For example, ID assignment may be performed automatically when the control unit 22 (or the lighting control system 100) is started up.

[0033] The control unit 22 assigns IDs to the luminaires. In this embodiment, the control unit 22 outputs an identification signal that enables each luminaire to be identified. For example, the control unit 22 outputs an identification signal to the luminaire to assign ID=1, and the luminaire that receives the identification signal becomes the luminaire assigned ID=1. The IDs assigned to the luminaires are not limited to consecutive numbers, and there may be vacant numbers.

[0034] Furthermore, the control unit 22 outputs a confirmation signal to the luminaire to confirm the assigned ID. For example, to a luminaire assigned ID=1, a confirmation signal is output to confirm that the luminaire has ID=1.

[0035] The control unit 22 also transmits an identification signal. ofIn this embodiment, the notification signal is transmitted three times at a predetermined time interval. In this embodiment, the identification signal, the confirmation signal, and the notification signal are converted by the communication conversion unit 23 based on the communication method described below.

[0036] The communication conversion unit 23 converts the identification signal, confirmation signal, and notification signal output from the control unit 22 into a telegram. In this embodiment, the communication conversion unit 23 outputs the telegram to the lighting fixture group 30 in synchronization with the commercial power source 10. In this embodiment, the telegram is composed of "1" and "0". The telegram is also composed of an 8-bit address assuming a maximum of 100 lighting fixtures can be connected, and 12-bit data based on the number of functions requested in the telegram and the unique data size. Specific examples of telegrams will be described with reference to Figs. 2 to 4.

[0037] The luminaire group 30 is made up of a plurality of luminaires, and IDs are assigned to the luminaires based on the telegram output from the signal conversion unit.

[0038] For example, the lamp group 30 is installed in a location where multiple lamps are arranged, such as a general road or a tunnel on a highway. When the lamp group 30 is installed in a tunnel, as shown in FIG. 1B, the lamps installed near the tunnel entrance can be classified as entrance lighting 5 and basic lighting 6 installed inside the tunnel.

[0039] In the luminaire control system 100, the cable has one signal line 1, two power lines 2 (live and neutral), and one ground line (not shown). An ID is assigned to each luminaire by acquiring a message output from the control device 20 via the signal line 1. Specific examples of ID assignment will be described with reference to Figs. 10 to 12.

[0040] The classification of entrance lighting and basic lighting in the lighting fixture group 30 is not limited. Typically, the lighting fixtures placed in the locations affected by the environment outside the tunnel, such as brightness, are considered to be entrance lighting. Hereinafter, the same reference numerals may be given to the respective lighting fixtures included in the lighting fixture group 30.

[0041] A communication method between the control device 20 and the luminaire group 30 in such a luminaire control system will be described below with reference to Figs.

[0042] [Communication method] FIG. 2 is a diagram showing a schematic diagram of a communication system between the control device 20 and the lighting fixture group 30. As shown in FIG.

[0043] As shown in Fig. 2, in this communication method, communication is performed in synchronization with the frequency of the AC voltage of the commercial power source 10. The control device 20, which is the transmitting side, outputs a data pulse 25 in synchronization with the negative half wave of the AC voltage. The lighting fixture 30, which is the receiving side, regards the data pulse 25 as valid data while synchronizing.

[0044] In this embodiment, in order for the receiving side to perform synchronization, a start code (for example, "1" and "0", hereinafter referred to as "10") is used in the message supplied to the lighting fixture 30. Also, since the signal state in a non-communication state is "0", the receiving side detects the change from "0" to "1" due to the addition of the start code "10" in the message as the start of the message and starts synchronization.

[0045] In this embodiment, the structure of the message is fixed length and consists of an address (positive logic, 8 bits), address inversion (negative logic, 8 bits), data (positive logic, 12 bits), and data inversion (negative logic, 12 bits). Here, address inversion refers to the inversion of each bit of the address. Data inversion refers to the inversion of each bit of the data.

[0046] In this embodiment, the address includes a number (ID) for identifying each luminaire. For example, if 100 luminaires are installed, each of the 100 luminaires is assigned a number. In addition, a group address, a broadcast address, etc. may be included in the address.

[0047] In this embodiment, the data is composed of a 4-bit function code and 8-bit unique data corresponding to the function code. For example, the function code includes luminaire ID assignment, dimming control, and luminaire status monitoring. Of course, any number of bits may be set according to the type of function required and the size of the unique data, and the number of bits of the data may be set to the sum of the type of function and the size of the unique data.

[0048] Furthermore, in this embodiment, in order to eliminate the possibility of erroneously detecting a change from "0" to "1" in a message as a start code, a non-communication period of 21 bits or more is provided between messages.

[0049] For example, suppose the address is "11111111", the address inversion is "00000000", the data is "000000000000", and the data inversion is "111111111111". In this way, the period in which "0" is most likely to occur consecutively within a message (for example, between the address inversion and the data) is limited to 20 bits. In other words, by setting "10" as the starting code after a string of "0"s that exceeds 20 bits, it is possible to eliminate false positives.

[0050] The luminaire 30, which is the receiving side, compares the address and address inversion with the data and data inversion to check whether there is an error in the data. The luminaire also outputs an answerback in synchronization with the negative half wave.

[0051] The format of transmission data in the above communication method will now be described with reference to FIG. 3 and FIG.

[0052] Fig. 3 is a diagram showing a schematic configuration of a transmission format. Fig. 4 is a diagram showing a schematic configuration of a transmission format.

[0053] The format of the message transmitted in Figures 3 and 4 is a start code, address (A0 to A7), address inversion, data (D0 to D11), data inversion, pause cycle (2 bits), answerback (2 bits), and pause cycle (2 bits). In other words, the length of the message is 48 bits, and 46 bits excluding the start code.

[0054] As shown in Fig. 3, the commercial power supply 10 for data transmission is a power supply of AC 200V, 50Hz or 60Hz. Also as shown in Fig. 3, the signal 26 is synchronized with the commercial power supply 10. One bit is transmitted and received in synchronization with the negative half wave of one power cycle. The address is fixed at 16 bits and output sequentially from the lowest. The data is fixed at 24 bits and output sequentially from the lowest. The pause 27 is fixed at 6 bits, and the answerback 35 is output in synchronization with the negative half wave of the power supply for the 3rd and 4th bits.

[0055] In this embodiment, the luminaire 30 indicates a YES to the request by returning an answerback 35 to the control device 20. The luminaire 30 indicates a NO to the request by not returning an answerback 35 to the control device 20. In other words, a binary response is made to the request by the control device 20 (for example, output of a message such as confirmation of the luminaire ID) by either responding or not responding.

[0056] 3, in the signal bit configuration 28, data bits are sent in synchronization with the negative half-wave side of the commercial power supply 10. After sending 8 bits of a positive logic bit address, 8 bits of a negative logic bit address obtained by taking the complement of the positive logic are sent. After sending 12 bits of positive logic bit data, 12 bits of negative logic bit data obtained by taking the complement of the positive logic are sent.

[0057] The receiving side separates the address into positive logic and negative logic from the data bits sent from the sending side, and also separates the data into positive logic and negative logic. Each separated signal is checked to see if it is composed of inverted negative logic bits for all positive logic bits (see signal comparison 36 in Figure 3).

[0058] When the signals match, the positive logic data is determined to be normal data. In FIG. 3, addresses A0 to A7, "11010100", and data "111001001101" are normal data 37.

[0059] Also, as shown in Figure 4, there is a minimum waiting time of 21 bits between the end of a message and the beginning of the next message. Before the message starts, it is synchronized with the negative half wave of the power supply, and if the number "10" is received in the order, the next message will be the beginning of the message.

[0060] Fig. 5 is a diagram showing a schematic configuration of the lighting fixture 30. Fig. 5A is a block diagram showing a functional configuration of the lighting fixture 30. Fig. 5B is a diagram showing a schematic structure of the lighting fixture 30.

[0061] As shown in FIG. 5A, the lighting device 30 includes a communication board 31, a power source 32, and an LED board 33.

[0062] The communication board 31 communicates between the control device 20 and the lighting fixture 30. In this embodiment, the communication board 31 acquires a message output by the signal conversion unit 23. In this embodiment, the communication board 31 also outputs a response (answerback) to the message to the signal conversion unit 23.

[0063] The communication board 31 also judges whether the message contains a start code "10" and whether a non-communication period of 21 bits or more is contained between messages. The specific state transition of the lighting fixture will be described with reference to FIG.

[0064] The communication board 31 also controls the opening and closing of the relay circuit of the lighting fixture based on the telegram. For example, the communication board 31 opens the relay circuit when it receives a notification signal. For example, the communication board 31 closes the relay circuit when it receives an identification signal and responds to the identification signal.

[0065] Furthermore, when the communication board 31 responds to the identification signal, it sets the ID of the lighting fixture having the communication board 31 to the ID included in the identification signal.

[0066] Furthermore, based on the message, the communication board 31 determines the PWM duty ratio of the power supply 32. For example, the communication board 31 may have a conversion table that determines the PWM duty ratio corresponding to a dimming rate of 0% or a dimming rate of 100%.

[0067] The power supply 32 performs dimming control of the lighting fixture 30 based on the duty ratio output from the communication board 31. For example, the power supply 32 dims the LED board 33 by constant current control.

[0068] The LED board 33 emits light when a current is applied from the power source 32 .

[0069] As shown in Fig. 5B, a cable 38 and a connector 39 that connects the cable 38 and the lamp 30 are connected to the lamp 30. In Fig. 5B, similar to Fig. 1B, the cable has one signal line 1 and two power lines 2. A ground line (not shown) is also provided.

[0070] The signal line 1 and the power line 2 may have an integrated wiring structure or separate wiring structures.

[0071] In addition, in FIG. 5B, the power input of the power source 32 (power source board) is wired via the communication board 31, but this is not limited thereto, and the power line 2 entering the lighting fixture 30 may be branched and wired to the communication board 31 and the power source 32.

[0072] Fig. 6 is a diagram showing an example of the configuration of the lamp control system 100. Fig. 6A is a diagram showing an example of the configuration of the lamp control system 100. Fig. 6B is a diagram showing an example of the configuration of the lamp control system 100. Fig. 6C is a diagram showing an example of the configuration of the lamp control system 100.

[0073] In FIG. 6, the lighting fixture group 30 is made up of 100 lighting fixtures.

[0074] 6A, a power line 42 from a commercial power source 10, which is a power source with a voltage of 200 V and a frequency of 50 or 60 Hz, is a single-phase two-wire line that supplies power to the control device 20 and each of the luminaires 30 via a lighting distribution board 40. A communication line 41 is also connected from the control device 20 to each luminaire 30, and an ID for each luminaire 30 is assigned via this communication line 41.

[0075] Of course, this is not limited to the example of Fig. 6A. For example, as shown in Fig. 6B, a configuration may be adopted in which the power line 42 is not connected from the lighting distribution board 40 to each luminaire 30, and the power from the lighting distribution board 40 is input to the control device 20 and distributed from the control device 20 to the luminaires 30. Also, as shown in Fig. 6C, the control device 20 may be built into the lighting distribution board 40, and the power may be distributed inside the lighting distribution board 40 and supplied to each luminaire 30.

[0076] Fig. 7 is a diagram showing a wiring pattern of the lighting fixture 30. Fig. 7A is a diagram showing an example of the wiring pattern of the lighting fixture 30. Fig. 7B is a diagram showing an example of the wiring pattern of the lighting fixture 30.

[0077] In Fig. 7A, wiring indicating AC-L, AC-N, and signals is connected to the luminaire 30. The AC-L wiring 50 and the AC-N wiring 51 are connected to the luminaire 30 (Nth) shown in Fig. 7A and to a luminaire (N+1th) not shown connected to the luminaire 30, and branch out at each luminaire.

[0078] The signal wiring 52 transmits messages related to identification signals, confirmation signals, and notification signals from the control device and supplies them to the luminaires. In Fig. 7A, the signal wiring is connected to the luminaire (N+1) via the luminaire (N). For example, a message (identification signal) is transmitted to the Nth luminaire to assign ID=N, followed by a message to assign ID=(N+1) to the (N+1)th luminaire.

[0079] Also, in FIG. 7A, the communication board 31 (not shown) controls the opening and closing of the relay circuit in response to a signal. That is, in the wiring pattern shown in FIG. 7A, it is possible to cut or transmit a signal from one luminaire to the next luminaire. For example, when the circuits of all luminaires are open, a message is sent to assign ID=1 to the first luminaire, and the relay circuit of the first luminaire is closed. Then, a message is sent to assign ID=2 to the second luminaire, and the relay circuit of the second luminaire is closed. By repeating this operation in sequence, IDs are assigned to all luminaires.

[0080] Of course, various wiring patterns may be set without being limited to the example shown in Fig. 7A. For example, in Fig. 7B, the wiring from the luminaire 30 to the next luminaire (AC-L50, AC-N51, and signal 52) may not be branched, and the cables connecting the luminaire 30 to the next luminaire may be successively added. In other words, the example of Fig. 7B does not require the use of a branched cable, and is easy to install.

[0081] FIG. 8 is a state transition diagram in the reception process of the luminaire 30.

[0082] As shown in Fig. 8, in step 101, the luminaire 30 (communication board 31) is in a state where reception of data pulses is prohibited. This reception prohibition state continues while a "1" is received in a telegram, or while a telegram containing less than 21 consecutive bits of "0" is being output to the luminaire (from step 101 to step 101). In particular, when a "1" is received, the reception counter is cleared, and when a "0" is received, the reception counter is incremented.

[0083] Furthermore, if a "0" is received in the message and the received "0" has been counted up to 20 bits by the receive counter, i.e., if 21 consecutive bits of "0" are received, the device transitions to a receiving state (from step 101 to step 102).

[0084] In step 102, if "1" is received, a transition is made to a start code waiting state (from step 102 to step 103). If "0" is received, the reception ready state continues (from step 102 to step 102).

[0085] In step 103, since "1" has already been received, if "0" is received, it means that the start code "10" has been detected, and the state transitions to the receiving state (from step 103 to step 104). Also, if "1" is received, since the start code has not been detected, the state transitions to the receiving prohibited state (from step 103 to step 101).

[0086] In step 104, a fixed-length 40-bit message (address, address inversion, data, and data inversion) is received. If 40 bits have been received, the state transitions to a response output state (from step 104 to step 105). If 40 bits have not been received, the entire message has not been received, so the receiving state continues (from step 104 to step 104).

[0087] A response corresponding to the message is output in step 105. The specific process of the response output will be described with reference to the flow in FIG.

[0088] FIG. 9 is a flowchart showing the response output of the luminaire 30.

[0089] The communication board 31 judges whether the message received in step 104 in Fig. 8 is normal or abnormal (step 201). In this embodiment, the communication board 31 compares the address of positive logic and the inverted address of negative logic, and compares the data of positive logic and the inverted data of negative logic. If the comparisons of both the address and the data are correct, it is judged to be normal (YES in step 201). If the comparisons of both the address and the data are incorrect, it is judged to be abnormal, and no response is output (NO in step 201, step 206).

[0090] Of the regular messages (address and data) that are determined to be normal, the address is determined (step 202). In this embodiment, if the ID of the luminaire indicated by the address matches the ID of the luminaire that received the address, it is determined that the received address was sent to that luminaire (YES in step 202). If the address is a broadcast address, it is determined that the received address was sent to that luminaire (YES in step 202). If the ID of the luminaire indicated by the address does not match the ID of the luminaire that received the address, the received address is not sent to that luminaire, so no response is output (NO in step 202, step 206).

[0091] As a result of the address determination, the specified luminaire executes processing according to the message (step 203). For example, when an identification signal is output indicating that ID=1 is assigned, the first luminaire (e.g., the luminaire closest to the control device 20) responds to the identification signal (YES in step 204, step 205).

[0092] For example, if a confirmation signal is output to all luminaires to confirm that they have ID=3, the luminaire with ID=3 will respond to the confirmation signal (YES in step 204, step 205), and luminaires other than ID=3 will not respond to the confirmation signal (NO in step 204, step 206).

[0093] Also, for example, when a notification signal is output, none of the luminaires responds to the message (NO in step 204, step 206).

[0094] In step 205, a response indicating that the process has been executed is output from the luminaire to the control device 20. In this embodiment, during the 6-bit time that is the pause cycle, "1" is sent to the control device 20 as an answerback in the 3rd and 4th bits.

[0095] When the response output ends in step 205 or step 206, the luminaire transitions to a reception prohibited state (step 105 to step 101 in FIG. 8).

[0096] A specific example of ID allocation will now be described with reference to FIGS.

[0097] Fig. 10 is a sequence diagram showing the allocation of IDs to each luminaire. For the sake of explanation, only three luminaires are shown in Fig. 10, and for the sake of identification, the luminaires in the luminaire group 30 are labeled luminaire A, luminaire B, and luminaire C. Fig. 10 also shows the sequence of ID allocation immediately after the system is started, and the relay circuit of each luminaire is in an open state immediately after startup.

[0098] As shown in Fig. 10, the control device 20 outputs a notification signal to all the luminaires. In this embodiment, the control device 20 transmits the notification signal a total of three times at three-second intervals (steps 301 to 303). Note that since the relay circuits of all the luminaires are open, the notification signal reaches only luminaire A. Also, if the relay circuit is closed, the communication board 31 opens the relay circuit upon receiving the notification signal.

[0099] In this embodiment, the notification signal stores a delay time until the relay circuit is opened and closed. As shown in FIG. 10, the first notification signal (hereinafter, referred to as the first notification signal) is set to have a delay time of 6.1 seconds. That is, luminaire A opens the relay circuit 6.1 seconds after receiving the first notification signal. Note that if the relay circuit of the luminaire is already open, it maintains the open state (does nothing).

[0100] Similarly, the delay time of the notification signal transmitted the second time (hereinafter referred to as the second notification signal) is set to 3.1 seconds, and the delay time of the notification signal transmitted the third time (hereinafter referred to as the third notification signal) is set to 0.1 seconds.

[0101] As described above, the delay times T1, T2, and T3 set in the first, second, and third notification signals are transmitted under the condition T1>T2>T3. In this manner, the delay times are set to values ​​that count down in units of the notification signal transmission cycle (e.g., 3 seconds). Furthermore, when any of these notification signals are received even once, all of the luminaires open the relay circuits almost simultaneously.

[0102] The notification signal may also include a signal to initialize (clear) the ID of an already assigned luminaire. The transmission cycle and the number of transmissions of the notification signal may be set arbitrarily. However, the transmission cycle is set to be equal to or longer than the minimum transmission interval based on the communication speed and message length in order to avoid collisions between transmissions between the control device 20 and the luminaire.

[0103] The control device 20 transmits an identification signal to assign ID=1 (step 304). Specifically, a message is transmitted in which the address is a group address (broadcast only) and the function code is ID assignment. In this embodiment, since the relay circuit of luminaire A is open, this identification signal is received only by luminaire A.

[0104] The luminaire A responds to the message and closes the relay circuit (step 305). As a result, the luminaire A becomes the luminaire with ID=1.

[0105] When the control device 20 receives a response to the identification signal of ID=1, it similarly transmits an identification signal allocating ID=2 (step 306). Since the relay circuit of luminaire A is closed in step 305, the identification signal is received by luminaire B. Note that in response to this identification signal (ID=2 request), luminaire A, which has already been assigned an ID, ignores this identification signal. Even if the identification signal of ID=1 is sent again, luminaire A, which has already been assigned an ID, does not respond.

[0106] The luminaire B responds to the message and closes the relay circuit (step 307). As a result, the luminaire B becomes the luminaire with ID=2.

[0107] Similarly, the control device 20 transmits an identification signal allocating ID=3 (step 308), and the luminaire C responds with a message and closes the relay circuit (step 309). As a result, the luminaire C becomes the luminaire with ID=3.

[0108] These steps are repeated, and the identification signal is sent while incrementing the ID, until no response to the identification signal is received.

[0109] The control device 20 transmits an identification signal to assign ID=4 (step 310). In this embodiment, since there are three luminaires, the ID assignment is completed at the time of step 309. In other words, no response is returned to the identification signal to assign ID=4.

[0110] The control device 20 again transmits an identification signal indicating that ID=4 is to be assigned (step 311). The control device 20 also transmits an identification signal indicating that ID=4 is to be assigned for the third time (step 312). As described above, in this embodiment, if there is no response to the identification signal, the control device 20 repeatedly transmits the identification signal three times (steps 310 to 312). If there is no response to the third identification signal, the ID assignment ends.

[0111] The control device 20 transmits an identification signal to assign an ID (=100) corresponding to the maximum number of luminaires (for example, 100), and if a response is made to that identification signal, it does not transmit any identification signals after ID=101. In other words, the sequence ends at that point.

[0112] Fig. 11 is a sequence diagram showing ID assignment when one luminaire is restarted. For the sake of explanation, only three luminaires are shown in Fig. 11, and the luminaires of the luminaire group 30 are labeled luminaire A, luminaire B, and luminaire C for identification purposes.

[0113] In addition, in Fig. 11, luminaire B is restarted and the relay circuit is open. In other words, the relay circuits of luminaires A and C are closed and IDs have already been assigned. In Fig. 11, luminaire A is assigned ID=1 and luminaire C is assigned ID=3.

[0114] As shown in Fig. 11, the control device 20 transmits a notification signal to all the luminaires three times in total at three-second intervals (steps 401 to 403). In this embodiment, since the relay circuit of luminaire A is closed, the notification signal reaches luminaire B. Furthermore, upon receiving the notification signal, the communication board 31 of luminaire A clears its own ID (=1) and opens the relay circuit according to the delay time.

[0115] The control device 20 transmits an identification signal allocating ID=1 (step 404). The luminaire A responds to this identification signal and closes the relay circuit (step 405).

[0116] Furthermore, the control device 20 transmits an identification signal allocating ID=2 (step 406). The luminaire B responds to this identification signal and closes the relay circuit (step 407).

[0117] Furthermore, since luminaire C has already been assigned ID=3, no response is made. Therefore, the control device 20 transmits an identification signal indicating that ID=3 is to be assigned three times (steps 408-410), and if no response is received to the third identification signal, the ID assignment is terminated.

[0118] In the example of FIG. 11, since there is no response of the identification signal of ID=3, there is a possibility that the control device 20 will mistakenly recognize the number of luminaires as two. In this case, the control device 20 may have a storage unit that stores how many luminaires are connected. Also, ID assignment may be re-executed based on conditions such as a specified timing. In this case, although it takes time, it is possible to finally grasp the number of connected luminaires.

[0119] Fig. 12 is a sequence diagram showing ID assignment when two luminaires are restarted. For the sake of explanation, only four luminaires are shown in Fig. 12, and for the sake of identification, the luminaires in the luminaire group 30 are labeled luminaire A, luminaire B, luminaire C, and luminaire D.

[0120] In addition, in Fig. 12, luminaires B and D are restarted and the relay circuits are open. In other words, the relay circuits of luminaires A and C are closed and IDs have already been assigned. In Fig. 11, luminaire A is assigned ID=1 and luminaire C is assigned ID=3.

[0121] In this case, in the sequence of Fig. 10 or Fig. 11, a luminaire with the same ID (for example, ID = 3) is created, and there is a possibility of output collision. Therefore, in Fig. 12, a confirmation signal is output from the control device 20.

[0122] 12, the notification signals in steps 401 to 403 and the identification signals repeated three times in steps 408 to 410 in FIG. 11 are omitted.

[0123] As in steps 401-403 in Fig. 11, the control device 20 transmits a notification signal to all luminaires three times in total at three-second intervals. In this embodiment, since the relay circuit of luminaire A is closed, the notification signal reaches luminaire B. After receiving the notification signal, the communication board 31 of luminaire A clears its own ID (=1) and opens the relay circuit according to the delay time.

[0124] 12, the control device 20 outputs a confirmation signal to all luminaires to confirm whether or not the luminaires are assigned ID=1 (step 501). Since the relay circuit of luminaire A is opened by the notification signal, this confirmation signal reaches only luminaire A.

[0125] Luminaire A does not respond to the confirmation signal output in step 501. Since the control device 20 does not receive a response from the luminaire, it determines that the luminaire with ID=1 does not exist.

[0126] The control device 20 transmits an identification signal allocating ID=1 (step 502). The luminaire A responds to this identification signal and closes the relay circuit (step 503).

[0127] Similarly, the control device 20 outputs a confirmation signal to confirm whether the luminaires are assigned ID=2 (step 504). Since luminaires A and B do not have ID=2, they do not respond to this confirmation signal.

[0128] The control device 20 transmits an identification signal allocating ID=2 (step 505). The luminaire B responds to this identification signal and closes the relay circuit (step 506).

[0129] The control device 20 also outputs a confirmation signal to confirm whether the luminaire is assigned ID=3 (step 507). In this embodiment, since ID=3 is assigned to luminaire C, a response to the confirmation signal is made from luminaire C (step 508).

[0130] Since the control device 20 receives a confirmation signal to confirm whether the luminaire is assigned ID=3, it determines that ID=3 has already been assigned and does not transmit an identification signal for ID=3. Therefore, the control device 20 outputs a confirmation signal to confirm whether the luminaire is assigned ID=4 (step 509).

[0131] Since there is no luminaire with ID=4, each luminaire does not respond to the confirmation signal. Therefore, the control device 20 transmits an identification signal to assign ID=4 (step 510). Luminaire D responds to this identification signal and closes the relay circuit (step 511).

[0132] In this way, by checking using a confirmation signal whether or not a luminaire with a corresponding ID exists before transmitting an identification signal that assigns an ID, duplication of IDs can be avoided.

[0133] As described above, the control device and the group of luminaires can accurately identify each luminaire according to the above communication method, thereby preventing ID duplication and resulting output collisions.

[0134] In addition, since IDs can be assigned to each luminaire remotely, there is no need to assign IDs in the tunnel where the luminaires are installed, which reduces personnel costs and time.

[0135] In addition, the confirmation signal eliminates the need to output an identification signal again to a luminaire that has already been assigned an ID, thereby preventing ID duplication.

[0136] In the present embodiment, the ID of the luminaire is set by the identification signal, but this is not limited to the above. For example, the identification signal may set the type of the luminaire, indicating whether it is an entrance light or a basic light. When the luminaire receives this identification signal, the ID of the luminaire and the luminaire may be set to either an entrance light or a basic light.

[0137] In the present embodiment, the ID of the luminaire is cleared by the notification signal, but this is not limiting. For example, the type of the luminaire, which indicates whether it is an entrance luminaire or a basic luminaire, may be cleared in the notification signal.

[0138] In the present embodiment, the relay circuit of the lighting fixture is set to open in response to the notification signal, but this is not limited to the above. For example, if the communication board 31 is already running a timer to close the relay circuit, a timer based on a delay time may be started at the time when the notification signal is received later.

[0139] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment, and various modifications can be made, and the configurations of the embodiments and modified examples can be combined. For example, in the present embodiment, a lighting control system for collectively controlling multiple lighting fixtures in a tunnel or the like has been described, but the lighting control system may also be used when assigning IDs to multiple lighting fixtures in a venue or the like where multiple lights are installed. [Explanation of symbols]

[0140] 10…Commercial power supply 20...Control device 22...Control section 23...Communication converter 30...Lamp group 31…Communication board 100...Lamp control system

Claims

1. an output unit that outputs an identification signal that enables each of the luminaires to be identified; a receiving unit that receives a response signal from the lighting device in response to the identification signal; A control device having A response unit that outputs the response signal; a relay operating unit that closes a relay based on the timing of outputting the response signal; A luminaire having A lighting control system comprising:

2. 2. The lighting control system according to claim 1, The identification signal includes a unique number that enables the luminaire to be identified, When the response unit outputs the response signal, the response unit sets the unique number in the luminaire. Lighting control system.

3. 3. The lighting control system according to claim 2, The output unit outputs a confirmation signal for confirming the luminaire to which the unique number is set. Lighting control system.

4. The lighting control system according to claim 3, The response unit responds to the confirmation signal when the unique number confirmed by the confirmation signal matches a unique number set in the luminaire. Lighting control system.

5. 5. The lighting control system according to claim 4, When a response to the outputted confirmation signal is received from the response unit, the output unit outputs a confirmation signal confirming a number different from the unique number confirmed by the confirmation signal. Lighting control system.

6. 2. The lighting control system according to claim 1, The output unit outputs a notification signal for notifying that the identification signal will be transmitted. Lighting control system.

7. 7. The lighting control system according to claim 6, The relay operation unit opens a relay based on a timing at which the notification signal is received. Lighting control system.

8. The lighting control system according to claim 7, the notification signal includes a delay time that delays the time until the relay is opened; The relay operation unit opens the relay when the notification signal is received and the delay time has elapsed. Lighting control system.

9. 9. The lighting control system according to claim 8, The output unit outputs the notification signal a plurality of times. Lighting control system.

10. 10. The lighting control system according to claim 9, The output unit outputs the notification signal at predetermined time intervals, The delay time is set based on the predetermined time interval. Lighting Control System

11. 7. The lighting control system according to claim 6, The identification signal includes a unique number that enables the luminaire to be identified, When the response unit outputs the response signal, the response unit sets the unique number in the luminaire, The notification signal includes initialization of the unique number set in the luminaire. Lighting control system.

12. 3. The lighting control system according to claim 2, The output unit outputs an identification signal including the same unique number as the output unique number a predetermined number of times when a response signal to the identification signal including the output unique number is not received. Lighting control system.

13. A lighting control system according to claim 12, The output unit stops outputting the identification signal when there is no response to an identification signal including the same unique number as the unique number outputted the predetermined number of times. Lighting control system.

14. 3. The lighting control system according to claim 2, The response unit stops outputting the response signal when the unique number is set to the lighting device. Lighting control system.

15. 2. The lighting control system according to claim 1, The identification signal includes an address and data; The response unit outputs the response signal when the address and the inverse of the address and the data and the inverse of the data match. Lighting control system.

16. an output unit that outputs an identification signal that enables each of the luminaires to be identified; a receiving unit that receives a response signal from the lighting device in response to the identification signal; A control device having the above configuration.

17. a response unit that outputs a response signal to an identification signal that enables each of the luminaires to be identified; a relay operating unit that closes a relay based on the timing of outputting the response signal; A lighting fixture having the above structure.

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