Illumination system and method for controlling illumination system

Abstract

To provide an illumination system and a method for controlling the illumination system with which it is possible to set the network identification code of a plurality of lighting fixtures by wireless.SOLUTION: An illumination system according to one embodiment of the present invention comprises a plurality of lighting fixtures, and a control device. Each of the plurality of lighting fixtures includes a storage unit for storing a first network identification code, and a change unit for changing the first network identification code stored in the storage unit to a second network identification code on the basis of a change indication transmitted from the control device. The control device includes a first transmission unit for transmitting the change indication to the plurality of lighting fixtures, and the change indication is an indication to change the first network identification code to the second network identification code when the first network identification code is stored in the storage unit.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a lighting system applicable to lighting devices for railway vehicles and the like, and a method for controlling the lighting system. [Background technology]

[0002] Conventionally, the multiple lighting fixtures installed on railway vehicles and the like include interior lights for illuminating the interior of the vehicle and backup lights for use when the interior lights are not lit, and it is sometimes necessary to control different dimming rates for each of these.

[0003] For example, in Patent Document 1, lighting control such as dimming of general lighting light sources and auxiliary lighting light sources arranged on the ceiling side of a passenger compartment of a railway vehicle is performed by various signals output from a control device. These general lighting light sources and auxiliary lighting light sources are connected to the control device so as to be able to send and receive various signals.

[0004] In this way, signals are sometimes sent and received between the control device (master) and the lighting fixtures (slave) via wires.Similarly, signals are sometimes sent and received between the master and slave devices wirelessly, and in this case, it is necessary to distinguish the network from other vehicles running on other tracks. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2019-169499 Summary of the Invention [Problem to be solved by the invention]

[0006] In the case of such wireless communication, conventionally, workers would set the network identification code of each lighting fixture one by one, but this was time-consuming due to the large number of lighting fixtures installed on vehicles.

[0007] In view of the above circumstances, an object of the present invention is to provide a lighting system and a lighting system control method that enable network identification codes of a plurality of lighting fixtures to be set wirelessly. [Means for solving the problem]

[0008] A lighting system according to one aspect of the present invention includes a plurality of lighting fixtures and a control device that controls the plurality of lighting fixtures, Each of the plurality of lighting fixtures has a storage unit that stores a first network identification code, and a change unit that changes the first network identification code stored in the storage unit to a second network identification code based on a change instruction transmitted from the control device, The control device has a first transmitting unit that transmits the change instruction to the plurality of lighting fixtures, and the change instruction is an instruction to change the first network identification code to the second network identification code when a first network identification code is stored in the memory unit.

[0009] In the lighting system, the control device transmits a change instruction to a plurality of luminaires having a first network identification code to change the identification code to a second network identification code, and the plurality of luminaires change the first network identification code stored in the storage unit to the second network identification code based on the change instruction. This makes it possible to set the network identification codes of the plurality of luminaires wirelessly, thereby improving the efficiency of setting network identification codes.

[0010] In order to achieve the above object, a lighting system according to the present invention is a lighting system including a plurality of lighting fixtures and a control device that controls the plurality of lighting fixtures, Each of the plurality of lighting fixtures has a storage unit that stores a second network identification code, and a change unit that changes the first network identification code to a second network identification code based on a change instruction transmitted from the control device when a first network identification code is stored in the storage unit, The control device has a first transmitting unit that transmits the change instruction to the plurality of luminaires, and the change instruction is an instruction to change the first network identification code to the second network identification code when a first network identification code is stored in the memory unit.

[0011] The control device may further have a second transmitting unit that, after transmitting the change instruction, transmits a confirmation signal to the plurality of luminaires to confirm whether the second network identification code has been stored in the memory unit, and a receiving unit that receives a response signal including information regarding the storage of the second network identification code, which is output from the plurality of luminaires when the plurality of luminaires receive the confirmation signal.

[0012] The control device further includes a control unit that, when the receiving unit receives the response signal, changes the identification codes of the plurality of lighting fixtures to the second network identification code; The change unit may change the identification codes of the plurality of lighting fixtures to the second network identification code based on the operation of the control unit.

[0013] When the control unit receives the response signal by the receiving unit, the control unit restarts the plurality of lighting fixtures; The change unit may change the identification codes of the plurality of luminaires to the second network identification code when the plurality of luminaires are restarted by the control unit.

[0014] The network identification code may include a PANID.

[0015] The plurality of lighting fixtures and the control device may be provided in a railway vehicle.

[0016] In order to achieve the above object, a method for controlling a lighting system according to the present invention includes transmitting a change instruction to change the identification code to a second network identification code to a plurality of lighting fixtures each having a storage unit that stores a first network identification code; Based on the change instruction, the plurality of lighting fixtures change the first network identification code stored in the storage unit to the second network identification code. [Effects of the Invention]

[0017] According to the controller of the present invention, it is possible to wirelessly set the network identification codes of a plurality of lighting fixtures. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a diagram schematically illustrating a lighting system according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing an example of the configuration of a lighting fixture. [Figure 3] FIG. 2A is a block diagram showing an example of the configuration of a parent device, and FIG. 2B is a block diagram showing an example of the configuration of a second control unit. [Figure 4] 10 is a flowchart showing the processing of a master unit of the lighting system. [Figure 5] 6 is a flowchart showing processing of a lighting fixture of the lighting system. [Figure 6] FIG. 10 is a diagram schematically illustrating a lighting system according to a modified example of the present invention. [Figure 7] FIG. 10 is a block diagram showing an example of the configuration of a lamp according to the modified example. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0020] First Embodiment Fig. 1 is a diagram schematically illustrating a lighting system 100 according to a first embodiment of the present invention. In Fig. 1, the lighting system 100 includes a control device (parent device 1) and luminaires 2 (plurality of luminaires) that receive signals (for example, change instructions J1, which will be described later) transmitted from the control device (parent device 1). In this embodiment, as shown in Fig. 1, the railway vehicle on which the parent device 1 is installed is referred to as a first vehicle (railroad vehicle 10), and the railway vehicle coupled to the railway vehicle 10 is referred to as a second vehicle (railroad vehicle 20).

[0021] As shown in Fig. 1, railway vehicle 10 has a base unit 1 and lighting fixtures 2a to 2c. For example, railway vehicle 10 is a commuter vehicle or express vehicle capable of running on a track (not shown), and generally has a bogie 11 and a vehicle body structure 12 supported by the bogie, with vehicle body structure 12 being configured to form a hexahedron including an underframe 13 forming the floor of railway vehicle 10, a pair of end bodies 14 (e.g., gable bodies) erected at both ends of underframe 13 in the track direction to form coupling portions 5 of vehicle body structure 12, a pair of end sides 15 erected at both ends of underframe 13 in the sleeper direction to form side portions of vehicle body structure 12, and a roof body structure 16 connected to the upper ends of the pair of end bodies 14 and the upper ends of the pair of end sides 15 to form the roof portion of vehicle body structure 12.

[0022] The interior of the vehicle body structure 12 has passenger compartments and a crew compartment, and the vehicle body structure 12 is provided with passenger doors and windows leading to the passenger compartments, and a crew door leading to the crew compartment. Handrails (not shown) and the like are fixed to the ceiling of the passenger compartment. In addition to these, the railway vehicle may also have electronic devices such as an in-car information screen that displays destinations and news, security cameras, and communication devices.

[0023] In this embodiment, a door (end panel) is provided on the end structure 14. For example, passengers can move to the adjacent railway car 20 by manually or automatically opening the door. In this embodiment, the door is made of metal.

[0024] 1, railway vehicle 10 is connected to railway vehicle 20 via a coupling section 5. Railway vehicle 20 has a lighting fixture 2. Similarly, a vehicle connected to railway vehicle 20 via a coupling section 5 also has a lighting fixture.

[0025] The master unit 1 is a wireless terminal that communicates with the slave units (lighting fixtures 2). In this embodiment, the master unit 1 uses ZigBee (registered trademark), a standard for a multi-hop system. With ZigBee, communication takes place between devices that have a common PAN (Personal Area Network) ID set. For example, when the master unit 1 transmits a signal with a specific PANID, the lighting fixture 2, which also has the same PANID set, receives the signal and transmits the received signal as is. When another lighting fixture with the same PANID receives the signal, it transmits the received signal as is. In this way, signals are transmitted and received between devices that have the same PANID set, and communication takes place between all devices that have the same PANID set.

[0026] The communication method between the master unit 1 and the luminaire 2 is not limited to ZigBee, and multi-hop communication other than ZigBee may be used. For example, a communication method may be used in which wireless nodes using specific low-power radios in a predetermined frequency band installed in each device search for nearby nodes, autonomously build a network, and collect data using a bucket brigade system. This communication method is characterized by not requiring communication running costs and being suitable for areas with high residential density. In this embodiment, the master unit 1 broadcasts a change instruction J1 (described below) to the luminaire 2, and the luminaire 2, upon receiving the change instruction J1, forwards the change instruction J2 using a bucket brigade system. Furthermore, the communication method between the master unit 1 and the luminaire 2 may be a communication method other than multi-hop communication. In addition to multi-hop communication, for example, the master unit 1 may send the change instruction J1 to the luminaire 2 only by broadcast.

[0027] In this embodiment, the master unit 1 also functions as a control device capable of setting the network identification code of the luminaire 2. That is, a signal from the master unit 1 instructing the luminaire 2 to change the network identification code is received by a nearby luminaire, and the signal is then transmitted from that luminaire to the next luminaire. Here, the network identification code is used to identify the wireless communication network, and in this embodiment, the PANID is used as the network identification code as described above, but it is not limited to this. For example, an SSID (Service Set IDentifier) ​​may also be used.

[0028] Also, in Figure 1, the master unit 1 is placed in the lead car (for example, the crew compartment). For example, when the conductor changes the network identification code or controls the dimming rate of the interior lights, the network identification code of each lighting fixture 2 (slave unit) is changed or the dimming rate is controlled by operating the control device (master unit 1). Note that the location where the master unit 1 is placed is not limited, and it may be placed in the lead car or the last car, or in any of the cars connected between the lead car and the last car.

[0029] The lighting fixtures 2 receive various signals from the master unit 1 and transmit signals from the master unit 1 to nearby lighting fixtures. In this embodiment, the lighting fixtures 2 are arranged in the longitudinal direction of the vehicle body structure 12. In addition to being arranged in the lead car, the lighting fixtures 2 are also arranged in the same way in the railcars 20 connected to the lead car and on the last car.

[0030] The slave unit is not limited to a lamp, and may be an in-car information screen that displays destinations, news, etc., or an electronic device such as a security camera or communication device. In this case, for example, the master unit may be a screen control device that controls the content displayed on the in-car information screen, or a monitoring device that detects abnormalities inside the car from images captured by a security camera.

[0031] FIG. 2 is a block diagram showing an example of the configuration of the lighting fixture 2, FIG. 3(A) is a block diagram showing an example of the configuration of the master unit 1, and FIG. 3(B) is a block diagram showing an example of the configuration of the second control unit 23.

[0032] The master unit 1 includes an operation unit 1A, an initialization signal transmission unit 1B, a first transmission unit 1C, a second transmission unit 1D, a reception unit 1E, a control unit 1F, and a first communication module 1G. In this embodiment, the master unit 1 changes the setting of the network identification code of the lighting fixture 2, which will be described later.

[0033] The operation unit 1A can change the setting of the network identification code for the lamp 2 by inputting an operation by the user or the like. In this embodiment, the operation unit 1A outputs a signal for changing the setting of the network identification code, which is input by a user (for example, a conductor) through remote operation using a PC or the like, to the initialization signal transmission unit 1B or the first transmission unit 1C. In other words, as will be described later, when it is necessary to transmit an initialization signal, the operation unit 1A transmits a signal for changing the setting of the network identification code to the initialization signal transmission unit 1B, and when it is not necessary to transmit an initialization signal, the operation unit 1A outputs a signal for changing the setting of the network identification code to the first transmission unit 1C.

[0034] Examples of timings for changing the network identification code setting include when a new train is formed, when a train is coupled, or when a train is separated. Examples of places for changing the network identification code setting include a depot when a new train is formed, and near a station when a train is coupled or separated. It is also preferable to change the network identification code setting when there are no other trains nearby. This is because if there are multiple newly formed trains in the depot and the network identification code setting is changed, there is a risk that the network identification codes of the other trains will also be changed.

[0035] Furthermore, for example, the operation unit 1A may be a touch panel or the like, and the user may use the touch panel to change the setting of the network identification code of the luminaire 2. Alternatively, the operation unit 1A may be a display that displays the current setting of the network identification code of the luminaire 2.

[0036] The initialization signal transmitter 1B transmits an initialization signal to the luminaire 2 to initialize the identification code. If the identification code of the luminaire 2 is not in an initialized state, the initialization signal transmitter 1B generates an initialization signal for the luminaire 2. The initialization signal transmitter 1B converts the initialization signal into a wireless signal, which is then wirelessly transmitted by a communication module 1G, which will be described later.

[0037] Whether the identification code of the lamp 2 is in the initialized state may be determined automatically or by the user. For example, when a new train is formed, the identification code of the lamp 2 is determined to be in the initialized state. Therefore, there is no need to send an initialization signal. However, when a train is coupled or uncoupled, the identification code of the lamp 2 is determined to be not in the initial state. Therefore, it is necessary to send an initialization signal.

[0038] The initialization signal transmission unit 1B generates an initialization signal based on a signal output by a user operating the operation unit 1A when the user has determined that it is necessary to transmit an initialization signal as described above.

[0039] After transmitting the initialization signal from the first transmission unit 1B, the first transmission unit 1C generates a change instruction J1 to change the identification code from the first network identification code to the second network identification code for the luminaire 2 that has the first network identification code in the storage unit 25. In other words, the change instruction J1 is an instruction to change the first network identification code to the second network identification code when the first network identification code is stored in the storage unit 25.

[0040] The first transmitting unit 1C transmits the above-mentioned change instruction J1 to the lighting fixture 2. The first transmitting unit 1C converts the change instruction J1 into a wireless signal, which is then wirelessly transmitted by the first communication module 1G, which will be described later. Here, in this embodiment, the first network identification code indicates an identification code in an initial state, but of course, this is not limited to this and may be an identification code that has been set once. Furthermore, if the first network identification code is already in the initial state, the first transmitting unit 1C does not transmit an initialization signal, but transmits the change instruction J1 based on a signal output by the user's operation of the operating unit 1A.

[0041] After transmitting the change instruction J1, the second transmitting unit 1D generates a confirmation signal to confirm to the luminaires 2 whether the second network identification code has been stored in the memory unit 25. The second transmitting unit 1D transmits the confirmation signal to each of the luminaires 2 in turn. In other words, the second transmitting unit 1D does not broadcast the confirmation signal to all the luminaires 2 at once.

[0042] The second transmitting unit 1D transmits the confirmation signal described above. The second transmitting unit 1D converts the confirmation signal into a wireless signal, which is then wirelessly transmitted by the first communication module 1G, which will be described later.

[0043] The receiving unit 1E receives a response signal output from the lighting fixture 2 when the lighting fixture 2 receives the confirmation signal.

[0044] As will be described later, when the luminaire 2 receives the confirmation signal and stores the second network identification code in the memory unit 25, it transmits a response signal to the master unit 1. In other words, when the receiver 1E receives the response signal, it can be confirmed that the luminaire 2 stores the second network identification code in the memory unit 25.

[0045] When the receiver 1E receives the response signal, the controller 1F performs an operation to change the identification code of the luminaire 2 from the first network identification code to the second network identification code.

[0046] In this embodiment, the operation refers to restarting the luminaire 2. That is, when the control unit 1F receives a response signal, it restarts the luminaire 2 by switching on and off a relay for the power P supplied to the luminaire 2. However, this is not limiting. For example, the control unit 1F may generate (transmit) information to the luminaire 2 to change (overwrite) the identification code of the luminaire 2 from a first network identification code to a second network identification code. If the information is to change the network identification code to the second network identification code when received by the luminaire 2, the identification codes of the luminaires 2 may differ when communicating via a multi-hop system, potentially preventing communication via the multi-hop system. Therefore, for example, by including information indicating that the identification code should be changed to the second network identification code 100 ms after reception of the information, the identification code can be simultaneously changed to the second network identification code even in a multi-hop system.

[0047] The first communication module 1G outputs (transmits) the change instruction J1 and confirmation signal generated by the first transmitting unit 1C and the second transmitting unit 1D to the luminaire 2. The first communication module 1G also outputs the response signal transmitted from the luminaire 2 to the receiving unit 1E. In this embodiment, the first communication module 1G uses a multi-hop communication standard using radio waves in the 2.4 GHz band.

[0048] As shown in FIG. 2, each lighting fixture 2 includes a light emitting unit 21, a constant current circuit 22, a second control unit 23, a second communication module 24, and a storage unit 25.

[0049] The light-emitting unit 21 is configured to be able to emit a sufficient amount of light to illuminate the passenger compartment. For example, a plurality of light-emitting units may be arranged along the longitudinal direction, or any number and arrangement may be used depending on the amount of light emitted from adjacent slave units, advertisements inside the railway vehicle, the environment outside the railway vehicle, etc. In this embodiment, the light-emitting unit 21 incorporates a plurality of LED elements and emits light when a DC power supply is input by a constant current circuit 22, which will be described later. The light-emitting unit 21 emits light at an illuminance that corresponds to the magnitude of the input current. In this embodiment, the light-emitting unit 21 is an LED, but of course, this is not limited to this and may also be a fluorescent lamp.

[0050] The constant current circuit 22 outputs a predetermined DC current from the externally supplied power P. In this embodiment, the power P is supplied to the constant current circuit 22 by a static inverter (SIV) that extracts, for example, AC 100V from a DC power source from an overhead line.

[0051] The second control unit 23 has a light emission control unit 23A, an initialization unit 23B, a generation unit 23C, and a change unit 23D.

[0052] Light-emission control unit 23A controls constant current circuit 22 so that a current value necessary for light-emitting unit 21 to emit light at a predetermined illuminance is obtained at a predetermined timing. That is, light-emission control unit 23A controls the magnitude and timing of the current supplied to light-emitting unit 21. For example, light-emission control unit 23A may control the magnitude and timing of the current supplied to light-emitting unit 21 based on a signal transmitted from parent unit 1. For example, the signal transmitted from parent unit 1 is information indicating that the dimming rate should be set to 70% in 100 ms.

[0053] When the initialization unit 23B receives the initialization signal, it initializes the identification code (PANID) of the lighting fixture 2.

[0054] The generation unit 23C generates a response signal including information that the second network identification code has been stored in the storage unit 25. That is, when the lighting fixture 2 receives the confirmation signal, the generation unit 23C generates the above-mentioned response signal. The generated response signal is transmitted to the master unit 1 by the second communication module 24.

[0055] Based on the received change instruction J1, the change unit 23D stores the second network identification code in the storage unit 25. Based on the operation of the control unit 1F, the change unit 23D also changes the setting of the identification code to the second network identification code stored in the storage unit 25. In this embodiment, the change unit 23D also changes the setting of the identification code to the second network identification code stored in the storage unit 25 when the control unit 1F restarts the lighting fixture 2.

[0056] The second communication module 24 outputs (transmits) the response signal generated by the generation unit 23C to the parent device 1. The second communication module 24 also outputs the initialization signal, the change instructions J1 to J3, and the confirmation signal transmitted from the parent device 1 to the second control unit 23.

[0057] As described above, the storage unit 25 stores the identification code. As described above, the storage unit 25 stores the second network identification code that was stored by the change unit 23D.

[0058] (Lighting system operation) Next, a description will be given of the operation of the lighting system 100 configured as described above. Fig. 4 is a flowchart showing the processing of the master unit 1 of the lighting system 100, and Fig. 5 is a flowchart showing the processing of the luminaire 2 of the lighting system 100.

[0059] First, the processing procedure of the master unit 1 will be described with reference to Fig. 4. The user checks whether the PANIDs of all luminaires 2 are in the initial state (step S101). If the PANIDs of all luminaires 2 are not in the initial state (NO), the initialization signal transmitter 1B transmits an initialization signal in response to a command input by the operation unit 1A to set the PANIDs of the luminaires 2 to the initial state (step S102).

[0060] Next, the first transmission unit 1C transmits the change instruction J1 to the luminaire 2 (step S103). In this embodiment, multi-hop wireless communication is performed using the initialized PANID.

[0061] Next, the second transmitting unit 1D transmits a confirmation signal to the luminaires 2 (step S104). The second transmitting unit 1D transmits the confirmation signal in turn to each of the luminaires 2. This prevents response signals, which will be described later, from being transmitted from all the luminaires 2 at the same time.

[0062] Next, the receiving unit 1E determines whether a response signal has been received from the luminaire 2 in response to the confirmation signal sent to the luminaire 2 (step S105). In other words, it determines whether all the luminaires 2 have stored the second network identification code in the storage unit 25. This makes it possible to prevent the existence of a luminaire 2 that does not store the second network identification code in the storage unit 25.

[0063] Next, if response signals have been received from all the luminaires 2 (YES), the control unit 1F restarts the luminaires 2 (step S106). That is, the control unit 1F turns on and off the relays of the circuit connecting the luminaires 2 to the power source.

[0064] Next, the processing procedure of the luminaire 2 will be described with reference to Fig. 5. When the initialization unit 23B receives an initialization signal (YES in step S201), the initialization unit 23B initializes the PANID of the luminaire 2 (step S202).

[0065] Next, when the change unit 23D receives the change instruction J1 (YES in step S203), the change unit 23D stores the second network identification code (PANID) included in the change instruction J1 in the storage unit 25 (step S204).

[0066] Next, when generating unit 23C receives a confirmation signal transmitted from base unit 1 (step S205), generating unit 23C transmits a response signal to base unit 1 (step S206).

[0067] Next, the master unit 1 (controller 1F) restarts the lighting fixture 2 (step S207).

[0068] Next, when the change unit 23D is restarted, it resets the second network identification code from among the identification codes stored in the storage unit 25 as the identification code (step S208).

[0069] This allows the PANID of the luminaire 2 to be automatically set via wireless communication, improving work efficiency. Furthermore, when the master unit 1 restarts the luminaire 2, the identification code can be reset from the first network identification code (initial PANID) to the second network identification code stored in the storage unit 25, thereby changing the identification code of the luminaire 2 at the same time.

[0070] In this embodiment, the master unit 1 transmits a change instruction J to the luminaire 2, and restarts the luminaire 2 after receiving a response signal, but this is of course not limited to this. For example, the control unit 1F may restart the luminaire 2 100 ms after the master unit 1 transmits the change instruction J to the luminaire 2. Furthermore, the change instruction J may contain not only information for changing (storing) the identification code to the second network identification code, but also information for resetting the identification code to the second network identification code 100 ms after reception. In other words, by omitting the exchange of confirmation signals, response signals, etc., the identification code can be changed more quickly than the above-described method.

[0071] (Variation) Fig. 6 is a diagram schematically showing an illumination system 100' according to a modified example of the present invention, and Fig. 7 is a block diagram showing an example configuration of a lighting fixture 2 according to the modified example. The following mainly describes configurations that differ from the first embodiment, and configurations that are similar to those in the first embodiment are given the same reference numerals and their description will be omitted or simplified.

[0072] The lighting system 100′ differs from the first embodiment in that it further includes a repeater 3. As shown in FIG. 6 , the repeater 3 is provided in each of the railway cars 10 and 20, and receives signals transmitted from the master unit 1 or the lighting fixtures 2.

[0073] As described above, a metal door (end panel) is provided on the end structure 14. This may interfere with wireless communication from the lighting fixture 2c closest to the door to the lighting fixture 2d closest to the door of the adjacent railway car 20.

[0074] Therefore, the repeater 3 transmits the signal J1' (e.g., a change instruction) transmitted from the lighting fixture 2 to the lighting fixture 2 or repeater 3 of the adjacent railway car 20. In this embodiment, the radio wave strength of the repeater 3 is greater than that of the master unit 1 and the lighting fixture 2 because the wireless signal passes through the door. For example, the radio wave strength of the master unit 1 and the lighting fixture 2 is -65 dBm, and the radio wave strength of the repeater 3 is -55 dBm.

[0075] Furthermore, the repeater 3 is placed near the door to facilitate communication with the lighting fixture 2 or the repeater 3 placed on the adjacent railway car 20.

[0076] 7, the second communication module 24 mounted on the lamp 2c receives a signal J2' from another lamp and transmits a signal J3' to the repeater 3a. Here, the lamp 2c is the lamp placed closest to the metal door (the adjacent railcar 20) provided on the end body structure 14.

[0077] The radio wave strength of the second communication module 24 prevents wireless communication through the door to the lighting fixture 2d located on the adjacent railway car 20, so communication is performed via the repeater 3a, which has a stronger radio wave strength.

[0078] The communication module 3a' of the repeater 3a receives the signal from the lamp 2d and transmits a signal J4' to the repeater 3b arranged on the adjacent railway car 20. The lamp 2d arranged on the adjacent railway car 20 receives the signal J4' transmitted from the communication module 3a' of the repeater 3b, as described above, and transmits the signal J5' to the lamps in the same railway car 20.

[0079] In this way, signal J1' from master unit 1 is transmitted via each lamp 2 to lamp 2c located closest to the adjacent railway car 20, then via repeater 3a to repeater 3b located on the adjacent railway car 20, and then from repeater 3b to lamp 2d. By exchanging signals J1' to J5' in this way, signals are transmitted to lamps located on all railway cars.

[0080] As described above, even when metal doors are placed on the end body structure 14 between railway cars, by adding a repeater 3 with enhanced radio wave strength, wireless communication with adjacent railway cars 20 and even the last railway car becomes possible.

[0081] 6, since the railway vehicle 10 is the leading vehicle, only one repeater is provided, but this is not limited thereto, and two repeaters may be provided, one at the front and one at the back in the direction of travel. In other words, the railway vehicle 10 may be provided with a repeater 3 and another repeater 3 provided on the opposite side of the repeater 3.

[0082] 6 and 7, the repeater 3 is provided independently of the lighting fixture 2, but this is not limited to this. For example, the lighting fixture 2c located closest to the adjacent railway car 20 may function as the repeater 3. For example, the radio wave intensity of the second communication module 24 may be strong.

[0083] 7, communication is performed from the repeater 3a to the repeater 3b of the adjacent railway car 20, but this is not limiting. For example, communication may be performed from the repeater 3 to a lighting fixture (e.g., the lighting fixture 2d closest to the door) of the adjacent railway car 20. In this case, the second communication module 24 of the lighting fixture 2d receives the signal J4' transmitted into the railway car 20 from the communication module 3a' of the repeater 3a.

[0084] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and various modifications may be made, and the configurations of the respective embodiments and modifications may be combined. For example, in the present embodiments, a lighting system for controlling lighting fixtures installed on a railway vehicle has been described, but the lighting system may also be used to control lighting fixtures in booths where objects that obstruct communication, such as metal walls or partitions, are installed at predetermined intervals. [Explanation of symbols]

[0085] 1...Control device 1A…Operation unit 1B...Initialization signal transmitter 1C...First transmitter 1F…Control section 1G...the first communication module 2…Lighting equipment 3...Repeater 5...Connection part 23...Second control section 23D…Change section 100...Lighting system

Claims

1. A lighting system comprising a plurality of luminaires and a control device that controls the plurality of luminaires, Each of the plurality of luminaires has a storage unit that stores a first network identification code, and a change unit that changes the first network identification code stored in the storage unit to a second network identification code based on a change instruction transmitted from the control device, The control device has a first transmission unit that transmits the change instruction to the plurality of luminaires, and the change instruction is an instruction to change the first network identification code to the second network identification code when a first network identification code is stored in the storage unit. Lighting system.

2. A lighting system comprising a plurality of luminaires and a control device that controls the plurality of luminaires, Each of the plurality of luminaires has a storage unit that stores a second network identification code, and a change unit that changes the first network identification code to a second network identification code based on a change instruction transmitted from the control device when a first network identification code is stored in the storage unit, The control device has a first transmission unit that transmits the change instruction to the plurality of luminaires, and the change instruction is an instruction to change the first network identification code to the second network identification code when a first network identification code is stored in the storage unit. Lighting system.

3. 3. A lighting system according to claim 1 or 2, The control device further includes a second transmitting unit that transmits a confirmation signal to the plurality of luminaires to confirm whether the second network identification code has been stored in the storage unit after transmitting the change instruction, and a receiving unit that receives a response signal including information that the second network identification code has been stored and is output from the plurality of luminaires when the plurality of luminaires receive the confirmation signal. Lighting system.

4. 4. A lighting system according to claim 3, The control device further includes a control unit that changes the identification codes of the plurality of luminaires to the second network identification code when the response signal is received by the receiving unit, The change unit changes the identification codes of the plurality of luminaires to the second network identification code based on the operation of the control unit. Lighting system.

5. 5. A lighting system according to claim 4, When the control unit receives the response signal by the receiving unit, the control unit restarts the plurality of lighting devices, The change unit changes the identification codes of the plurality of luminaires to the second network identification code when the plurality of luminaires are restarted by the control unit. Lighting system.

6. 2. A lighting system according to claim 1, The network identification code includes a PANID. Lighting system.

7. 2. A lighting system according to claim 1, The plurality of lighting devices and the control device are provided in a railway vehicle. Lighting system.

8. Transmitting a change instruction to change the identification code to the second network identification code to a plurality of luminaires having a storage unit that stores the first network identification code; Based on the change instruction, the plurality of luminaires change the first network identification code stored in the storage unit to the second network identification code. A method for controlling a lighting system.

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