Lighting gateway device and lighting control system

Abstract

To provide a lighting gateway device capable of preventing a telegraphic message, for which an operation apparatus in a lighting control system is not a destination, from flowing to a low-order network.SOLUTION: A lighting gateway device is connectable to the other facility system by a high-order network in a lighting control system and connectable to a low-order operation apparatus in the lighting control system by a low-order network. The lighting gateway device stores an ID conversion table in which a first apparatus ID in the high-order network and a second apparatus ID in the low-order network regarding an operation apparatus in the lighting control system are recorded. The lighting gateway device identifies a first apparatus ID of an operation apparatus of a transmission destination from a BACnet protocol telegraphic message which is received via the high-order network. Further, it is determined whether or not the identified first apparatus ID is recorded in the ID conversion table. In a case where the first apparatus ID is recognized to be recorded, the telegraphic message is sent out to the low-order network.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a lighting gateway device and a lighting control system. [Background technology]

[0002] Patent Document 1 discloses a lighting gateway device that connects a higher-level network connected to a central monitoring device and multiple facility systems with a lower-level network connected to a lighting control system. The lighting gateway device prevents congestion from occurring in the higher-level network.

[0003] Incidentally, when the upper network and lower network are configured using BACnet (A Data Communication Protocol for Building Automation and Control Networks), it is known that one-to-many communications take place. For example, when checking the status of a control device, the upper control device that made the request sends a BACnet protocol message to all control devices in multiple facility systems. In large buildings, the number of target control devices can reach 300 or more, and at any given moment, more than 300 BACnet protocol messages will flow through the upper network. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-026420 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the lighting gateway device described above cannot extract only messages addressed to control devices in the lighting control system from among the BACnet protocol messages exchanged via the upper network and send them to the lower network. In particular, BACnet sometimes uses broadcast communication to notify device status changes, and if the destination IP address is a broadcast address, it is not possible to determine from the IP address whether the message is addressed to a control device in the lighting control system. As a result, BACnet protocol messages not addressed to control devices in the lighting control system will be sent to the lower network, increasing the burden on the control devices in the lighting control system that must process these messages.

[0006] In order to solve the above-mentioned problems, the first objective of the present disclosure is to provide a lighting gateway device that can prevent BACnet protocol messages that are not addressed to operating devices within a lighting control system from being transmitted to a lower-level network.

[0007] In order to solve the above-mentioned problems, the second object of the present disclosure is to provide a lighting control system that can prevent BACnet protocol messages that are not addressed to operating devices within the lighting control system from being transmitted to a lower-level network. [Means for solving the problem]

[0008] A first aspect of the present disclosure is A lighting gateway device that is connectable to another facility system via a first network in a lighting control system having a plurality of lighting devices, and that is connectable to a lower-level operating device in the lighting control system via a second network, It has non-volatile memory, a process of storing in the non-volatile memory an ID conversion table in which a first device ID, which is an ID within the first network, and a second device ID, which is an ID within the second network, of an operation device within the lighting control system are recorded; A process of identifying a first device ID of a destination manipulation device from a destination of a BACnet protocol message received via the first network; a process of determining whether the identified first device ID is recorded in the ID conversion table; a process of identifying a second device ID of the destination manipulation device based on the ID conversion table when the identified first device ID is recognized to be recorded in the ID conversion table, and changing the destination of the BACnet protocol message to the identified second device ID; sending the BACnet protocol message to the second network; Preferably, the system is configured to perform the following:

[0009] The second aspect is a lighting gateway device that is connectable to another facility system via a first network and is connected to a lighting repeater via a second network; the lighting repeater; A plurality of lighting devices; Equipped with The lighting gateway device It has non-volatile memory, a process of storing in the non-volatile memory an ID conversion table in which a first device ID, which is an ID within the first network for a lower-level control device, a second device ID, which is an ID within the second network for a lower-level control device, and information on the lighting repeater that manages the control device are recorded; A process of identifying a first device ID of a destination manipulation device from a destination of a BACnet protocol message received via the first network; a process of determining whether the identified first device ID is recorded in the ID conversion table; a process of identifying a second device ID of the destination manipulation device based on the ID conversion table when the identified first device ID is recognized to be recorded in the ID conversion table, and changing the destination of the BACnet protocol message to the identified second device ID; A process of identifying the lighting repeater that manages the operation device to which the BACnet protocol message is to be sent based on the ID conversion table; transferring the BACnet protocol message to the identified lighting repeater; configured to run The lighting repeater that receives the BACnet protocol message It is preferable that the lighting control system is configured to identify the second device ID from the destination of the BACnet protocol message and execute a process of transferring the BACnet protocol message to an operating device specified by the second device ID. [Effects of the Invention]

[0010] The lighting gateway device of the present disclosure stores an ID conversion table that records first device IDs, which are IDs within the upper network for operation devices in a lighting control system, and second device IDs, which are IDs within the lower network.The lighting gateway device extracts only messages addressed to operation devices in the lighting control system from among BACnet protocol messages received via the upper network based on the ID conversion table, and sends these messages to the lower network.This makes it possible to prevent BACnet protocol messages that are not addressed to operation devices in the lighting control system from being transmitted to the lower network. [Brief explanation of the drawings]

[0011] [Figure 1] 1 illustrates a configuration example of a lighting control system according to a first embodiment of the present disclosure. [Figure 2] 2 illustrates a detailed configuration example of the lighting control system according to the first embodiment of the present disclosure. [Figure 3] 10 is a configuration example of a lighting control system according to a second embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0012] Embodiments of the present disclosure will be described with reference to the drawings. The same or corresponding components will be designated by the same reference numerals, and repeated description may be omitted.

[0013] Embodiment 1 1 shows an example configuration of a lighting control system 100 according to a first embodiment of the present disclosure. A lighting gateway device 90 is disposed within the lighting control system 100, which manages a plurality of lighting devices 10. The lighting gateway device 90 is connected to a central monitoring device 5 and other facility systems 200 via a first network 1100, which is a higher-level network. The central monitoring device 5 is an operating device that monitors and controls the lighting control system 100 and the other facility systems 200. The other facility systems 200 are, for example, an entrance / exit facility system, an air conditioning facility system, a power facility system, a disaster prevention facility system, or a lighting control system other than the lighting control system 100. There may be one or more other facility systems 200.

[0014] The first network 1100 is configured using BACnet (A Data Communication Protocol for Building Automation and Control Networks).

[0015] The lighting gateway device 90 transmits and receives BACnet protocol messages (hereinafter referred to as messages) to and from the central monitoring device 5 or other facility systems 200 via the first network 1100. For example, the lighting gateway device 90 transmits messages related to the lighting control system 100 to the central monitoring device 5 or other facility systems 200. The lighting gateway device 90 also receives messages related to control from the central monitoring device 5 or other facility systems 200.

[0016] The lighting gateway device 90 is also connected to lower-level operating devices such as a computer 3, a lighting web server 4, and multiple lighting repeaters 1, which are arranged in the lighting control system 100, via a second network 1200, which is a lower-level network. The computer 3 functions as a lighting integrated operating device.

[0017] The second network 1200 is a network within the lighting control system 100 and is configured using BACnet.

[0018] The lighting gateway device 90 communicates with the computer 3, the lighting web server 4, the lighting repeater 1, and the operation devices connected below it via the second network 1200. For example, the lighting gateway device 90 requests a response message from the lighting repeater 1 to confirm that the lighting repeater 1 is alive. Alternatively, the lighting gateway device 90 sets the lighting repeater 1 to receive a status change notification, which is a notification of a change in the lighting status of the lighting device 10.

[0019] The lighting gateway device 90 has a central processing unit (CPU), a volatile or non-volatile memory, a first communication port, and a second communication port. The first communication port and the second communication port are, for example, Ethernet (registered trademark). The first communication port is connected to a first network 1100, and the second communication port is connected to a second network 1200.

[0020] The lighting repeater 1 communicates with a plurality of lighting controllers 8 (not shown) connected downstream via a third network 1300. One or more lighting controllers 8 are placed on each floor. One or more lighting devices 10 are connected downstream of each lighting controller 8. The lighting control network 110 is a network including the lighting controllers 8 and the lighting devices 10 connected to the lighting controllers 8.

[0021] The third network 1300 is configured as a LAN (Local Area Network) based on the Ethernet standard.

[0022] In this way, the lighting gateway device 90 of the present disclosure is disposed within a lighting control system 100 that manages multiple lighting devices 10. The lighting gateway device 90 is connected to other facility systems 200 and the central monitoring device 5 via a first network 1100, and is connected to lower-level operating devices within the lighting control system 100 via a second network 1200.

[0023] <Detailed Functions of the Lighting Gateway Device 90> The lighting gateway device 90 stores mode setting items, adapter device IDs, a higher-level IP address table, a lower-level IP address table, an ID conversion table, and a higher-level ID conversion table in a non-volatile memory.

[0024] The mode setting items record setting items required for changing the BACnet version on the first network 1100. If the BACnet versions supported by the control devices differ, communication problems may occur. Therefore, in communication via the first network 1100, the lighting gateway device 90 switches its own version based on the mode setting items to match the version of the other party.

[0025] The adapter device ID is an ID for identifying each operation device on the first network 1100. The lighting gateway device 90 stores its own adapter device ID.

[0026] The upper-level IP address table records the IP addresses of gateway devices that function as gateways in other facility systems 200. Specifically, the upper-level IP address table records the IP addresses of gateway devices, device IDs, and whether or not status change notifications are transferred, in association with each other.

[0027] The lower-level IP address table records the IP address and device ID of the lighting repeater 1. The IP address does not need to be set for all operation devices in the lighting control system 100 that can be the destination of a message; it is sufficient that the IP address is set for at least the lighting repeater 1.

[0028] The ID conversion table records a first device ID, which is the ID within first network 1100, of a control device within lighting control system 100, and a second device ID, which is the ID within second network 1200. Specifically, the ID conversion table records the device ID of the lighting repeater 1 that manages the target control device, and the first device ID and second device ID of the control device, linked together. It is desirable that the first device ID and second device ID be set for all control devices within lighting control system 100 that can be the destination of a message.

[0029] The higher ID conversion table records the device ID of the controller that manages the target operation device in the other equipment system 200, and the first device ID and second device ID of the operation device in association with each other.

[0030] In the present disclosure, a message exchanged via the first network 1100 includes information on the first device ID of the destination control device. The lighting gateway device 90 identifies the first device ID from the destination of the message received via the first network 1100 and determines whether the identified first device ID is recorded in the ID conversion table. If the first device ID is recorded, it means that the destination of the message is a control device within the lighting control system 100. In this case, the lighting gateway device 90 identifies a second device ID corresponding to the destination control device based on the ID conversion table and changes the destination of the message to the second device ID. The lighting gateway device 90 then identifies the lighting repeater 1 that manages the destination control device based on the ID conversion table and reads the IP address information of the identified lighting repeater 1 from the downstream IP address table. The lighting gateway device 90 then uses the read IP address information to forward the message to the lighting repeater 1 responsible for the destination control device. The lighting repeater 1 that receives the message identifies the second device ID from the destination of the message and forwards the message to the control device specified by the second device ID.

[0031] On the other hand, if the identified first device ID is not recorded in the ID conversion table, this means that the destination of the message is not an operating device within the lighting control system 100. In this case, the lighting gateway device 90 does not send the message to the second network 1200. This makes it possible to prevent messages that are not addressed to an operating device within the lighting control system 100 from flowing into the second network 1200.

[0032] Furthermore, when a message is received from a lower-level control device via the second network 1200, the lighting gateway device 90 determines whether the destination of the message is a control device of another equipment system 200. If it is determined that the message is a control device of another equipment system 200, the lighting gateway device 90 refers to the upper ID conversion table and adds information about the first device ID of the destination control device to the destination of the message. The lighting gateway device 90 also refers to the upper-level IP address table and adds information about the IP address of the gateway device responsible for the destination control device to the destination of the message. This makes it possible to reduce the amount of messages sent to the first network 1100.

[0033] In the lighting control system 100, when the second device ID of a control device is changed due to a system update or the like, the lighting gateway device 90 refers to the ID conversion table and changes the second device ID for the control device, but does not change the first device ID. This prevents the ID change within the lighting control system 100 from affecting other equipment systems 200.

[0034] 2 shows a detailed configuration example of the lighting control system 100 according to the first embodiment of the present disclosure. The lighting gateway device 90 is disposed in a web system 60. The lighting repeater 1 and the computer 3 are disposed in a building monitoring system 50.

[0035] The lighting repeater 1 is connected to the computer 3, lighting web server 4, lighting gateway device 90, and annunciators 51 and 52 via a second network 1200. The lighting repeater 1 is also connected to the lighting controller 8, a computer 25 on which lighting control setting software is installed, and a wireless LAN terminal 26 via the second network 1200. The lighting repeater 1 communicates with the computer 3 and other facility systems 200 via the lighting gateway device 90, and also communicates with multiple lighting controllers 8 connected downstream.

[0036] The lighting repeater 1 has a central processing unit (CPU), a volatile or non-volatile memory, a first communication port, and a second communication port. The first communication port and the second communication port are, for example, Ethernet (registered trademark). The first communication port is connected to a second network 1200, and the second communication port is connected to a third network 1300.

[0037] When the lighting repeater 1 detects an abnormality such as a communication error or equipment failure occurring in the lower system, it generates a lighting control signal for controlling the lighting controller 8 and the equipment connected to it at a lower level. Also, when the control signal received from another higher-level operating device contains a signal for controlling the lighting controller 8 and the equipment connected to it at a lower level, the lighting repeater 1 generates a lighting control signal for controlling the lighting controller 8 and the equipment connected to it at a lower level based on this signal. Also, when the information signal from the lighting controller 8 and the equipment connected to it at a lower level contains a signal for transmission to higher-level equipment, the lighting repeater 1 generates lighting information corresponding to the higher-level equipment from this signal.

[0038] The lighting controller 8 is connected to the lighting repeater 1 via a third network 1300. One or more lighting devices 10 are connected to the lighting controller 8 via the third network 1300. In addition to the lighting devices 10, a relay control terminal 11, a dimming signal terminal 12, a relay terminal 13, a remote control breaker control terminal 14, a human presence sensor 15, an amplifier 16, a contact input terminal 17, a contact output terminal 18, a switch unit 19 such as a wall switch, a dimming controller 20, an illuminance sensor 21, an illuminance human presence sensor 22, and an image human presence sensor 23 are also connected to the lighting controller 8 via the third network 1300. The lighting devices 10 are connected to a control unit 27 or a signal dimming unit 28. A color temperature variable terminal 29 may also be connected to the lighting controller 8.

[0039] The lighting controller 8 communicates with control devices such as the lighting repeater 1 connected to it at a higher level. The lighting controller 8 also transmits and receives control signals to lighting devices 10 connected to it at a lower level, based on control signals from the lighting repeater 1 or other devices or control information managed by the lighting controller 8 itself.

[0040] The lighting controller 8 has a central processing unit (CPU), volatile or nonvolatile memory, a first communication port, and a second communication port. The first communication port is Ethernet (registered trademark). The second communication port is a two-wire dedicated communication line. The first communication port is connected to a higher-level system via a third network 1300, and the second communication port is connected to a lower-level system via the third network 1300. The lighting controller 8 stores in its nonvolatile memory device information related to the lower-level control devices connected thereto, including device-specific address information; group information assigned to each control device; date and time information including a calendar and the current date and time; and schedule information for controlling the lighting states of the lighting devices 10 among the control devices based on the date and time information. The lighting controller 8 controls the lighting states of the lighting devices 10 belonging to the same group as the group information based on the schedule information.

[0041] The switch unit 19 switches the lighting state of the lighting device 10 controlled by the lighting controller 8. The switch unit 19 has a switch operation unit, an infrared transmission / reception port (IR port), a central processing unit (CPU), a volatile or non-volatile memory, and a first communication port. The first communication port supplies power to the switch unit 19 and is used for external communication. It is connected to a second port of the lighting controller 8 via a crossover wiring. The switch unit 19 transmits switch on / off information and group information corresponding to each switch to the lighting controller 8. When the switch unit 19 is configured, the lighting controller 8 transmits configuration information, such as a group signal assigned to each switch, to the switch unit 19. The switch unit 19 can also transmit information between the configuration terminal 24 and the lighting controller 8 via the IR port. When the switch operation unit is pressed, the switch unit 19 transmits a press signal from the first communication port. The lighting control system switches the lighting state of the lighting device 10 using the press signal transmitted from the switch unit 19 as a trigger.

[0042] The lighting web server 4 is arranged in a web system 60. The lighting web server 4 includes a user client server 6. The lighting web server 4 also includes a management client server 7.

[0043] Embodiment 2 The following describes changes from the first embodiment. FIG. 3 shows a detailed configuration example of a lighting control system 100 according to a second embodiment of the present disclosure. In this embodiment, a lighting gateway device 90 is provided for each of multiple lighting repeaters 1. When a lighting repeater 1 is replaced due to a system update or the like, the lighting gateway device 90 refers to the ID conversion table and changes the second device ID for the replaced lighting repeater 1, but does not change the first device ID or device ID. In addition, in the lower-level IP address table, the IP address and device ID of the replaced lighting repeater 1 are kept the same as before the replacement. This prevents the replacement of a lighting repeater 1 within the lighting control system 100 from affecting other equipment systems 200.

[0044] As described above, the lighting gateway device 90 of the present disclosure stores an ID conversion table in which first device IDs, which are IDs within the first network 1100 for operation devices within the lighting control system 100, and second device IDs, which are IDs within the second network 1200, are recorded. Based on the ID conversion table, the lighting gateway device 90 extracts only messages addressed to operation devices within the lighting control system 100 from among BACnet protocol messages received via the first network 1100, and sends these to the lower network. This makes it possible to prevent messages that are not addressed to operation devices within the lighting control system from flowing into the lower network.

[0045] The present disclosure is not limited to the above-described embodiments, and various modifications can be made in the implementation stage without departing from the spirit of the present disclosure. Furthermore, the embodiments and modifications may be implemented in appropriate combinations, in which case the combined effects can be obtained. [Explanation of symbols]

[0046] 1 lighting repeater, 3 computer, 4 lighting web server, 5 central monitoring device, 6 user client server, 7 management client server, 8 lighting controller, 10 lighting device, 11 relay control terminal device, 12 dimming signal terminal device, 13 relay terminal device, 14 remote control breaker control terminal device, 15 human presence sensor, 16 amplifier, 17 contact input terminal device, 18 contact output terminal device, 19 switch unit, 20 dimming controller, 21 illuminance sensor, 22 illuminance human presence sensor, 23 image human presence sensor, 24 setting terminal, 25 computer, 26 wireless LAN terminal, 27 control unit, 28 signal dimming unit, 29 color temperature variable terminal device, 50 building monitoring system, 51 annunciator, 52 annunciator, 60 web system, 90 lighting gateway device, 100 lighting control system, 110 lighting control network, 200 Other equipment systems, 1100 first network, 1200 second network, 1300 third network

Claims

1. A lighting gateway device that is connectable to another facility system via a first network in a lighting control system having a plurality of lighting devices, and that is connectable to a lower-level operating device in the lighting control system via a second network, It has non-volatile memory, a process of storing in the non-volatile memory an ID conversion table in which a first device ID, which is an ID within the first network, and a second device ID, which is an ID within the second network, of an operation device within the lighting control system are recorded; A process of identifying a first device ID of a destination manipulation device from a destination of a BACnet protocol telegram received via the first network; a process of determining whether the identified first device ID is recorded in the ID conversion table; When it is determined that the identified first device ID is recorded in the ID conversion table, a process of identifying a second device ID of the destination manipulation device based on the ID conversion table and changing the destination of the BACnet protocol message to the identified second device ID; sending the BACnet protocol message to the second network; A lighting gateway device configured to execute the above steps.

2. 2. The lighting gateway device according to claim 1, wherein when the second device ID for an operation device in the lighting control system is changed, only the second device ID for the operation device is changed in the ID conversion table, and the first device ID is not changed.

3. a lighting gateway device that is connectable to another facility system via a first network and is connected to a lighting repeater via a second network; the lighting repeater; A plurality of lighting devices; Equipped with The lighting gateway device It has non-volatile memory, a process of storing in the non-volatile memory an ID conversion table in which a first device ID, which is an ID within the first network for a lower-level control device, a second device ID, which is an ID within the second network for a lower-level control device, and information on the lighting repeater that manages the control device are recorded; A process of identifying a first device ID of a destination manipulation device from a destination of a BACnet protocol telegram received via the first network; a process of determining whether the identified first device ID is recorded in the ID conversion table; When it is determined that the identified first device ID is recorded in the ID conversion table, a process of identifying a second device ID of the destination manipulation device based on the ID conversion table and changing the destination of the BACnet protocol message to the identified second device ID; A process of identifying the lighting repeater that manages the operation device to which the BACnet protocol message is to be sent based on the ID conversion table; transferring the BACnet protocol message to the identified lighting repeater; configured to run The lighting repeater that receives the BACnet protocol message A lighting control system configured to identify the second device ID from the destination of the BACnet protocol message and execute a process of transferring the BACnet protocol message to an operating device specified by the second device ID.

4. 4. The lighting control system according to claim 3, wherein, when the lighting repeater is replaced, the lighting gateway device changes only the second device ID for the replaced lighting repeater in the ID conversion table, and does not change the first device ID or the information of the lighting repeater.

Images