WO2019058659A1 - Système de communication, dispositif de transfert, procédé de commande de communication, et support non temporaire lisible par ordinateur contenant un programme - Google Patents

Système de communication, dispositif de transfert, procédé de commande de communication, et support non temporaire lisible par ordinateur contenant un programme Download PDF

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Publication number
WO2019058659A1
WO2019058659A1 PCT/JP2018/022339 JP2018022339W WO2019058659A1 WO 2019058659 A1 WO2019058659 A1 WO 2019058659A1 JP 2018022339 W JP2018022339 W JP 2018022339W WO 2019058659 A1 WO2019058659 A1 WO 2019058659A1
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Prior art keywords
transfer
information
facility
destination
transfer data
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PCT/JP2018/022339
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English (en)
Japanese (ja)
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英弥 石田
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日本電気株式会社
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Publication of WO2019058659A1 publication Critical patent/WO2019058659A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways

Definitions

  • the present invention relates to a communication system, a transfer device, and a communication control method, and in particular, controls communication between facility devices of the same type among a plurality of transfer devices connected to a plurality of facility devices of different types.
  • the present invention relates to a communication system, a transfer device, and a communication control method.
  • the building equipment devices include, for example, types of camera devices, lighting management devices, elevator management devices, energy management devices, entry / exit management devices, etc., and the present invention is not limited thereto.
  • physical wiring of the network is generally performed separately for each type of building equipment. Therefore, there is no need to match the network design between different types of building equipment devices.
  • the communication infrastructure in the building for the purpose of suppressing the introduction and maintenance costs.
  • Patent Document 1 discloses a technology related to a communication system that allows coexistence of a plurality of types of networks.
  • the present invention has been made to solve such a problem, and a communication system for easily realizing commonality of physical wiring of a network among a plurality of existing types of facility devices, and transfer
  • An object of the present invention is to provide an apparatus and a communication control method.
  • the communication system is A plurality of transfer devices forming a communication network and connected to a plurality of facility devices of different types; A route in the communication network via communication between the equipment devices of the same type determined based on the connection definition between the equipment device and the transfer device and the connection definition between the plurality of transfer devices A management device that holds information and belongs to the communication network; Equipped with The first transfer device among the plurality of transfer devices is Receiving, from a first facility apparatus of a predetermined type connected to itself, transfer data to the second facility apparatus of the predetermined type as a transfer destination; Identifying a transfer device connected to the second facility device based on the transfer destination and the path information; Transferring the transfer data to another transfer device in the communication network by using the specified transfer device as destination information; The second transfer device among the plurality of transfer devices is It is determined whether the destination information of the transfer data received from another transfer device in the communication network indicates itself. If the destination information indicates itself, transmit the transfer data to the second facility device; If the destination information indicates other than itself, the
  • the transfer apparatus is Receiving, from a first facility apparatus of a predetermined type among a plurality of facility apparatuses of different types connected to itself, transfer data to the second facility apparatus of the predetermined type as a transfer destination; Communication connected with itself via communication between the same type of equipment devices determined based on the connection definition between the equipment devices and the transfer device and the connection definition between the plurality of transfer devices Identifying a transfer device connected to the second facility device based on route information in the network and the transfer destination; Transferring the transfer data to the communication network with the specified transfer device as destination information; It is determined whether the destination information of the transfer data received from the communication network indicates itself, If the destination information indicates itself, transmit the transfer data to the second facility device; If the destination information indicates other than self, the transfer data is retransferred to the communication network.
  • a communication control method is A plurality of transfer devices forming a communication network and connected to a plurality of facility devices of different types; A route in the communication network via communication between the equipment devices of the same type determined based on the connection definition between the equipment device and the transfer device and the connection definition between the plurality of transfer devices A management device that holds information and belongs to the communication network; A communication control method in a communication system comprising In the first transfer device among the plurality of transfer devices, Receiving, from a first facility apparatus of a predetermined type connected to itself, transfer data to the second facility apparatus of the predetermined type as a transfer destination; Identifying a transfer device connected to the second facility device based on the transfer destination and the path information; Transferring the transfer data to the communication network using the specified transfer device as destination information; In the second transfer device of the plurality of transfer devices, It is determined whether the destination information of the transfer data received from the communication network indicates itself, If the destination information indicates itself, transmit the transfer data to the second facility device; If the destination information indicates other than
  • a communication control method is In the transfer device Receiving, from a first facility apparatus of a predetermined type among a plurality of facility apparatuses of different types connected to itself, transfer data to the second facility apparatus of the predetermined type as a transfer destination; Communication connected with itself via communication between the same type of equipment devices determined based on the connection definition between the equipment devices and the transfer device and the connection definition between the plurality of transfer devices Identifying a transfer device connected to the second facility device based on route information in the network and the transfer destination; Transferring the transfer data to the communication network with the specified transfer device as destination information; It is determined whether the destination information of the transfer data received from the communication network indicates itself, If the destination information indicates itself, transmit the transfer data to the second facility device; If the destination information indicates other than self, the transfer data is retransferred to the communication network.
  • the program according to the fifth aspect of the present invention is A process of receiving transfer data from a first facility apparatus of a predetermined type among a plurality of facility apparatuses of different types connected to itself, to which the second facility apparatus of the predetermined type is a transfer destination; Communication connected with itself via communication between the same type of equipment devices determined based on the connection definition between the equipment devices and the transfer device and the connection definition between the plurality of transfer devices A process of identifying a transfer device connected to the second facility device based on route information in the network and the transfer destination; Transferring the transfer data to the communication network with the specified transfer device as destination information; A process of determining whether the destination information of the transfer data received from the communication network indicates itself; A process of transmitting the transfer data to the second facility device when the destination information indicates itself; A process of retransferring the transfer data to the communication network if the destination information indicates other than self; On a computer.
  • the present invention it is possible to provide a communication system, a transfer device, and a communication control method for easily realizing sharing of physical wiring of a network among a plurality of existing types of building equipment devices.
  • FIG. 1 is a block diagram showing an overall configuration of a communication system 1000 according to a first embodiment of the present invention.
  • the transfer device 10 the transfer device 20, and the management device 30 are connected via the communication line 40 to form a communication network N.
  • the transfer devices 10 and 20 and the management device 30 may be directly connected by physical wiring, or may be connected in multiple stages via other transfer devices.
  • the transfer device 10 is connected to at least the facility devices A1 and B1. Further, the transfer device 20 is connected to at least the equipment devices A2 and B2.
  • the installation devices A1 and A2 are the same type of installation devices.
  • the equipment devices B1 and B2 are also equipment devices of the same type, and are different from the equipment devices A1 and A2. That is, the transfer device 10 is connected with a plurality of different types of facility devices A1 and B1, and the transfer device 20 is connected with a plurality of different types of facility devices A2 and B2.
  • the installation devices A1, A2, B1 and B2 may be, for example, building equipment devices such as a camera device, a lighting management device, an elevator management device, an energy management device, an entry / exit management device, or the like It may be.
  • the equipment device A1 and the equipment device A2 perform data communication between them.
  • the equipment device B1 and the equipment device B2 perform data communication between them.
  • the same kind of equipment devices may be included.
  • the same kind of equipment devices may be included.
  • Each of the equipment devices A1 and so on transmits itself to the transfer device to which it is connected, transfer data having the same type of other equipment device as the transfer destination. Further, each of the equipment devices A1 and the like receives transfer data transmitted from equipment devices of the same type from the transfer device to which it is connected.
  • the management device 30 holds path information 31 determined based on the connection definition between the facility device and the transfer device and the connection definition between the plurality of transfer devices.
  • the path information 31 is path information in the communication network N via which communication between facility devices of the same type is performed.
  • the path information 31 includes, for example, the transfer devices 10 and 20 as path information via communication between the facility device A1 and the facility device A2.
  • the transfer devices 10 and 20 may obtain the route information 31 from the management device 30 and may internally hold the route information 31. Alternatively, the transfer devices 10 and 20 can refer to the route information 31 by making an inquiry to the management device 30.
  • the transfer apparatus 10 receives, from a first equipment of a predetermined type among a plurality of equipment of different types connected thereto, transfer data to the second equipment of the predetermined type as a transfer destination. . Then, the transfer device 10 specifies the transfer device connected to the second facility device based on the route information 31 and the transfer destination. Thereafter, the transfer device 10 transfers transfer data to the other transfer devices in the communication network N, with the specified transfer device as destination information.
  • the transfer device 20 can perform the above-described process as well as the transfer device 10.
  • the transfer device 20 determines whether the destination information of transfer data received from another transfer device in the communication network N indicates itself. Then, when the destination information indicates itself, the transfer device 20 transmits transfer data to the second facility device. Further, when the destination information indicates other than itself, the transfer device 20 retransfers the transfer data to another transfer device in the communication network N.
  • the transfer device 10 can perform the above-described process as well as the transfer device 20.
  • FIG. 2 is a flowchart showing a flow of communication control processing in the first transfer device according to the first embodiment of the present invention.
  • the transfer device 10 receives, from the equipment device A1, transfer data in which the equipment device A2 is set as the transfer destination (S11).
  • the transfer device 10 specifies the transfer device 20 connected to the facility device A2 based on the transfer destination and the route information 31 (S12).
  • the transfer device 10 may transmit the transfer destination of the received transfer data to the management device 30, request the search in the path information 31, and receive the response from the management device 30.
  • the management device 30 refers to the path information 31 to read the transfer device 20 connected to the facility device A2 which is the received transfer destination, and returns information indicating the transfer device 20 to the transfer device 10.
  • the transfer device between the transfer devices 10 and 20, which is directly connected to the transfer device 10 is also returned together with the transfer device 20.
  • the transfer device 10 may receive the route information 31 in advance from the management device 30 and hold it. In that case, the transfer device 10 refers to the path information 31 and specifies the transfer device 20 by reading out the transfer device 20 connected to the facility device A2 as the transfer destination. At this time, a transfer device between the transfer devices 10 and 20, which is directly connected to the transfer device 10, may also be specified together with the transfer device 20.
  • the transfer device 10 transfers transfer data to another transfer device in the communication network, with the specified transfer device 20 as destination information (S13).
  • the transfer device 10 may be another transfer device regardless of whether it is the transfer device 20 or not.
  • FIG. 3 is a flowchart showing a flow of communication control processing in the second transfer device according to the first embodiment of the present invention.
  • the transfer device 20 receives transfer data from another transfer device in the communication network N (S14). For example, if the transfer devices 10 and 20 are directly connected, the transfer device 20 receives transfer data from the transfer device 10, and if not directly connected, the transfer device 20 is a communication network other than the transfer device 10. Receive transfer data from N other transfer devices.
  • the transfer device 20 determines whether the destination information of the received transfer data indicates itself (S15). When the destination information indicates itself, the transfer device 20 transmits the transfer data to the facility device A2 set as the transfer destination of the transfer data (S16). On the other hand, when the destination information indicates other than itself, the transfer device 20 retransfers the transfer data to another transfer device in the communication network N (S17).
  • the facility devices A1 and A2 are originally connected via one or more transfer devices, and the facility devices B1 and B2 are connected via one or more other transfer devices. Then, in order to share the communication infrastructure, the installation work is performed so as to be connected by the same physical wiring.
  • the transfer data transmitted from each facility device only the same type of facility device as the final destination is set as the transfer destination. Therefore, in the present embodiment, by using the route information 31 determined based on the connection definition between the facility device and the transfer device and the connection definition between the plurality of transfer devices, the connection destination of each facility device is obtained.
  • each transfer device it is possible to know the route of the transfer device to be routed to transfer to the transfer destination. Therefore, with respect to the detailed configuration of the communication network N, it is not necessary to perform complicated settings individually for each transfer device, and it is possible to easily realize commonization of physical wiring of the network among a plurality of existing types of facility devices. be able to.
  • Second Embodiment The second embodiment is an improved example of the first embodiment described above.
  • the problems to be solved by the second embodiment will be described in detail.
  • management protocol of each facility is generally configured to have many controlled devices for one controller (or a small number of controllers), when the management protocol is IP (Internet Protocol), there are many at one time.
  • IP Internet Protocol
  • multicast IP addresses may be conflicting because they are limited by reservation. Also, the broadcast will reach all devices in the same network, which will increase the load on the devices. In addition to these things, receiving data from other equipment is not supposed in the first place. Therefore, it is difficult and unrealistic to guarantee that there is no problem when using multiple types of equipment devices in the same network.
  • the transfer device to be shared learns and transfers the configuration information such as the connection relationship for all the building equipment connected, and accordingly, a large-sized device is required, which is economical and technically There was a problem with
  • the management device is a set of the installation devices belonging to the same type, virtual network identification information for identifying the set, and an encapsulation rule for encapsulating the transfer data, for each of the plurality of types. Holds virtual network definition information associated with. Then, the first transfer device identifies the virtual network identification information and the encapsulation rule associated with the second facility device based on the transfer destination and the virtual network definition information, and identifies the identification. The transfer data is encapsulated based on the specified encapsulation rule, the identified virtual network identification information is added to the encapsulated transfer data, and the identified transfer device is transferred to the communication network as the destination information Do.
  • the second transfer device receives the transfer data from the communication network and the destination information indicates itself, the virtual network identification added to the transfer data based on the virtual network definition information Identifying the encapsulation rule associated with the information, decapsulating the transfer data based on the identified encapsulation rule, and transmitting the released transfer data to the second facility device It is.
  • the transfer data received from the facility device is protected by encapsulation, and each transfer device in the communication network does not refer to the transfer data itself but refers to only the information indicating the transfer device set as the destination information. Thus, it can be determined whether or not it is retransfer.
  • the encapsulation rule can be specified based on the virtual network identification information added to the transfer data, so that the encapsulation is appropriately released, and the transfer data after release is originally used.
  • the equipment apparatus that is the transfer destination can be identified and transmitted.
  • the first transfer device inquires the transfer destination to the management device, and the management device is configured to, in the virtual network definition information, the virtual network identification information associated with the inquired transfer destination. And transmitting the encapsulation rule to the first forwarding device.
  • virtual network definition information can be centrally managed, and accurate destination information can be always identified by the latest information.
  • identification information of two or more virtual LANs may be associated with the virtual network identification information.
  • a plurality of VLANs can be managed collectively by layering.
  • FIG. 4 is a block diagram showing an entire configuration of a communication system 2000 according to Embodiment 2 of the present invention.
  • the communication system 2000 is an information system for managing facility equipment in a building including the first floor to the Nth floor (N is a natural number of 3 or more) and the first basement floor.
  • N is a natural number of 3 or more
  • the building management system 110 manages various equipment devices such as an entrance / exit management device, a lighting management device, and a camera device.
  • various equipment apparatus shall be disperse
  • an entry / exit management device 101, a lighting management device 102, a camera device 103, and a transfer device 210 are disposed.
  • An entry / exit management device 101, a lighting management device 102, and a camera device 103 are connected to each port of the transfer device 210.
  • an entry / exit management device 104, a lighting management device 105, a camera device 106, and a transfer device 220 are arranged.
  • the entry and exit management device 104, the illumination management device 105, and the camera device 106 are connected to each port of the transfer device 220.
  • the transfer devices 210 and 220 are connected, the present invention is not limited to this.
  • an entry / exit management device 107, a lighting management device 108, a camera device 109, and a transfer device 230 are disposed on the N-th floor.
  • An entry / exit management device 107, a lighting management device 108, and a camera device 109 are connected to each port of the transfer device 230.
  • optical trunk line as a main line connecting communication lines with each floor in the building.
  • the optical trunk line includes a transfer device 240.
  • the optical trunk line may be configured of two or more transfer devices.
  • the transfer device 240 is connected to the transfer devices 210, 220 and 230.
  • the optical trunk line can be said to be an example of the communication line 40 described above.
  • a building management system 110, an entrance / exit management device 111, a lighting management device 112, an image display device 113, a transfer device 270, and a controller device 280 are disposed on the first floor underground.
  • the building management system 110, the entry / exit management device 111, the lighting management device 112, the video display device 113, and the controller device 280 are connected to each port of the transfer device 270.
  • the controller device 280 may be connected to any of the transfer devices described above.
  • the controller device 280 holds virtual network definition information 281 and physical topology 282.
  • the physical topology 282 includes connection definitions of the transfer devices 210 to 270, and connection definitions between each transfer device and the facility device.
  • the virtual network definition information 281 associates, for each of a plurality of types, a set of facility devices belonging to the same type, virtual network identification information for identifying the set, and an encapsulation rule for encapsulating transfer data. Information.
  • FIG. 5 is a diagram for explaining the concept of the virtual network according to the second embodiment of the present invention.
  • the virtual network definition information 281 indicates that virtual networks VN1 to VN3 are formed in the communication network N.
  • the transfer devices 201 and 202 and the like in the communication network N are physically used in forming each virtual network.
  • the virtual network VN1 indicates that the entry / exit management devices 101 and 111, which are equipment devices of the same type, are connected.
  • the virtual network VN2 indicates that the lighting management devices 102 and 112 are connected
  • the virtual network VN3 indicates that the camera device 103 and the video display device 113 are connected.
  • FIG. 6 is a diagram showing an example of virtual network definition information 281 according to the second embodiment of the present invention.
  • the virtual network definition information 281 is an example of a table in which a virtual network ID, a VLAN ID, a transfer device port ID, a building equipment device ID, and an encapsulation rule are associated.
  • the virtual network ID is an example of virtual network identification information that identifies a set of facility devices belonging to the same type.
  • VLAN ID is identification information of one or more VLANs belonging to a virtual network.
  • the transfer device port ID is a port ID of a transfer device to which each facility device belonging to the virtual network is connected.
  • the building installation device ID is a set of identification information of the installation devices belonging to the same type.
  • the encapsulation rule is a rule for encapsulating transfer data, and is, for example, the definition of a header or footer, the number of bits, the setting place of various addresses, and the like. Instead of the encapsulation rule, identification information of the encapsulation rule may be used.
  • the controller device 280 is an example of the management device 30, and is an information processing device such as a computer.
  • the controller device 280 stores virtual network definition information 281, physical topology 282, route information 283, etc. in an internal storage device (not shown).
  • a computer program (not shown) is stored in the storage device, and a control unit (not shown) of the controller device 280 reads the computer program from the storage device into a memory (not shown) and executes predetermined control. Execute the process
  • the controller device 280 collects the connection definitions of the transfer devices 210 to 270 and the connection definition of each transfer device and the facility device in a state of being connected to the transfer device 270, generates the physical topology 282, and stores it in the storage device. save.
  • the physical topology 282 may be input to the controller device 280 by the user.
  • the controller device 280 receives an input of the virtual network definition information 281 from the user, and stores it in the storage device.
  • the controller device 280 may display the connection relationship of each device on the screen using an icon or the like based on the physical topology 282. Thereby, the network administrator who is a user can easily grasp the configuration of the communication system 2000.
  • the user may instruct the controller device 280 to define a virtual network based on the display of the screen. Further, the controller device 280 determines route information 283 in the communication network through which communication between facility devices of the same type is performed, based on the virtual network definition information 281 and the physical topology 282.
  • the path information 283 may be information defining the identification information of a facility apparatus through which communication is performed from a certain facility apparatus to a certain facility apparatus, the order of port IDs, and the like. Then, the controller device 280 further stores the determined route information 283 in the storage device.
  • the transfer devices 210 to 270 are an example of the transfer devices 10 and 20, and are communication control devices or communication relay devices provided with a plurality of communication ports.
  • a computer program (not shown) is stored in an internal storage device (not shown).
  • a control unit such as the transfer device 210 reads a computer program from a storage device to a memory (not shown) and executes it to execute predetermined communication control processing.
  • each of the transfer devices 210 to 270 is arbitrarily accessible to the controller device 280.
  • FIG. 7 is a sequence diagram showing a flow of communication control processing according to the second embodiment of the present invention.
  • the entry / exit management apparatus 101 transmits transfer data in which the transfer source is set as the entry / exit management apparatus 101 and the transfer destination is the entry / exit management apparatus 111 to the transfer apparatus 210 connected with itself (S101).
  • the transfer device 210 analyzes the received transfer data and extracts settings of the transfer source and the transfer destination (S102).
  • the entry / exit management apparatus 101 is extracted as the transfer source
  • the entry / exit management apparatus 111 is extracted as the transfer destination.
  • the transfer device 210 transmits the transfer source and the transfer destination to the controller device 280, and requests collation of the virtual network definition information 281 and the like (S103).
  • the transfer device 210 makes a request for verification according to a predetermined protocol.
  • the controller device 280 collates the virtual network definition information 281 and the like, and sends back the collation result to the transfer device 210 (S104). For example, the controller device 280 searches for a virtual network ID in which the entry / exit management device 111 indicated by the transfer destination included in the request is included. Then, the controller device 280 extracts the encapsulation rule associated with the retrieved virtual network ID. Further, the controller device 280 refers to the route information 283 and identifies transfer device identification information (MAC address, etc.) via which communication is performed from the entry / exit management device 101 as the transfer source to the entry / exit management device 111 as the transfer destination. Extract).
  • MAC address transfer device identification information
  • controller device 280 refers to the physical topology 282 and extracts the transfer device 270 connected to the entry / exit management device 111 which is the transfer destination. Thereafter, the controller device 280 transmits the extracted virtual network ID, encapsulation rule, identification information of the transfer device passing through, identification information of the transfer device 270 connected to the transfer destination, and the like to the transfer device 210 as a collation result. Do.
  • the transfer device 210 receives the verification result and encapsulates the transfer data (S105). Specifically, the transfer device 210 encapsulates transfer data based on the encapsulation rule included in the matching result. Then, the transfer device 210 adds the virtual network ID included in the comparison result to the encapsulated transfer data, and generates transfer data with the transfer device 270 included in the comparison result as the destination information. Then, the transfer device 210 transmits the generated transfer data to the identification information of the transfer device via which is included in the collation result, for example, the transfer device 240 (S106).
  • the transfer device 240 receives the transfer data from the transfer device 210, analyzes the received transfer data, and extracts the virtual network ID and the destination information (S107). Then, the transfer device 240 determines whether or not the destination information indicates. Here, since the destination information indicates the transfer device 270, the transfer device 240 retransfers the received transfer data as it is to the transfer device 270 which is the next route (S108). The transfer device 240 may make an inquiry to the controller device 280 in order to search for a route directed to the transfer device 270 indicated by the destination information.
  • the transfer device 270 receives the transfer data from the transfer device 240, analyzes the received transfer data, and extracts the virtual network ID and the destination information (S109). Then, the transfer device 270 determines whether the destination information indicates. Here, since the destination information indicates the transfer device 270, it is determined to indicate itself. Therefore, the transfer device 270 decapsulates the received transfer data (S110). Specifically, the transfer device 270 makes an inquiry to the controller device 280 based on the extracted virtual network ID, and specifies an encapsulation rule associated with the virtual network ID. The transfer device 270 makes a request for verification according to a predetermined protocol. Then, the transfer device 270 decapsulates the transfer data based on the identified encapsulation rule. Thereafter, the transfer device 270 confirms that the setting of the transfer destination of the transfer data after release indicates the entry / exit management device 111, and transmits the transfer data after release to the entry / exit management device 111 (S111). .
  • the network of the building management system and the related building equipment can share the same transfer device and physical wiring while maintaining the existing device arrangement, and cable wiring and bandwidth can be reduced. It will be available effectively. Furthermore, since the transfer device of the route to be made common can be transferred without learning the configuration information of the individual building equipment devices, it is possible to make common with smaller devices compared to the prior art.
  • the facility equipment of the building is disposed in a distributed manner in a plurality of floors or on the same floor in a plurality of rooms, and in order to replace the old-style equipment with a new-style equipment, a large number of workers, a long time There is work time and expensive work costs. For example, it may be difficult in terms of time and cost to replace the equipment on the entire floor of a high-rise building overnight. Therefore, partial replacement becomes possible by applying the virtual network according to the present embodiment.
  • FIG. 8 is a block diagram showing an entire configuration of an application example of the communication system according to Embodiment 2 of the present invention.
  • the communication system 2001 is a diagram showing a state in the middle of replacing an old-style camera system with a new-style camera system.
  • the old camera system the old cameras 132 and 133 and the old display 134 correspond to the same kind of equipment.
  • the new cameras 121 and 122 and the new display 124 correspond to the same kind of equipment. Therefore, in the virtual network definition information (not shown), an old-style camera system and a new-style camera system are defined as different virtual network IDs.
  • the transfer device 211 is connected to the new camera 121 and the transfer device 231. That is, the old camera has already been removed from the transfer device 211. Further, the transfer device 221 is connected to the new camera 122, the old camera 132, and the transfer device 241. Also, the transfer device 231 is connected to the old camera 133 and the transfer device 241. That is, in the transfer device 231, the old camera has not been removed yet, and the new camera is not connected.
  • the transfer devices 241 are connected to transfer devices 211, 221, 231 and 271.
  • the transfer device 271 is connected to the transfer device 241, the new display 124, the old display 134, and the controller device 280.
  • the other configuration is the same as that of the communication system 2000, and the illustration and the description thereof will be omitted.
  • Embodiment 3 is a modification of the second embodiment described above.
  • each transfer device in the second embodiment does not make an inquiry to the controller device which has been performed when receiving the transfer data, and in advance, each transfer device transmits route information and virtual network definition information from the controller device. To be delivered to.
  • the management device distributes the path information and the virtual network definition information to each of the plurality of transfer devices in advance. At this time, the management device distributes route information and virtual network definition information by a predetermined protocol. Then, each of the plurality of transfer devices specifies the transfer device connected to the second facility device using the distributed route information, and uses the distributed virtual network definition information. And identifying the virtual network identification information and the encapsulation rule associated with the second facility device. As a result, it is possible to omit the process of querying the management apparatus in each transfer apparatus, and speed up the communication control process. Also, individual setting processing in each transfer device can be automated.
  • the present invention has been described as the hardware configuration in the above embodiment, the present invention is not limited to this.
  • the present invention can also realize arbitrary processing by causing a central processing unit (CPU) to execute a computer program.
  • CPU central processing unit
  • Non-transitory computer readable media include tangible storage media of various types.
  • Examples of non-transitory computer readable media are magnetic recording media (eg flexible disk, magnetic tape, hard disk drive), magneto-optical recording media (eg magneto-optical disk), CD-ROM (Read Only Memory), CD-R, CD-R / W, DVD (Digital Versatile Disc), BD (Blu-ray (registered trademark) Disc), semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (RAM) Random Access Memory)).
  • magnetic recording media eg flexible disk, magnetic tape, hard disk drive
  • magneto-optical recording media eg magneto-optical disk
  • CD-ROM Read Only Memory
  • CD-R Compact Only Memory
  • CD-R Compact Disc
  • CD-R / W Digital Versatile Disc
  • DVD Digital Versatile Disc
  • BD Blu-ray (registered trademark) Disc
  • semiconductor memory for example
  • the programs may be supplied to the computer by various types of transitory computer readable media.
  • Examples of temporary computer readable media include electrical signals, light signals, and electromagnetic waves.
  • the temporary computer readable medium can provide the program to the computer via a wired communication path such as electric wire and optical fiber, or a wireless communication path.

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  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un dispositif de transfert (10) qui : reçoit, d'un premier dispositif d'équipement (A1) d'un type prescrit, parmi une pluralité de différents types de dispositifs d'équipement (A1, B1) connectés au dispositif de transfert (10), des données de transfert qui doivent être transférées à un second dispositif d'équipement (A2) du type prescrit ; identifie un dispositif de transfert (20) connecté au second dispositif d'équipement (A2) sur la base d'une destination de transfert et d'informations (31) relatives à une route à l'intérieur d'un réseau de communication (N) qui est connecté au dispositif de transfert (10) et à travers lequel passent des communications entre des dispositifs d'équipement du même type, le réseau de communication (N) étant identifié sur la base d'une définition d'une connexion entre un dispositif d'équipement et un dispositif de transfert, et une définition d'une connexion entre une pluralité de dispositifs de transfert ; transfère les données de transfert au réseau de communication (N), à l'aide du dispositif de transfert identifié (20), en tant que des informations de destination ; détermine si les informations de destination des données de transfert reçues du réseau de communication (N) indiquent le dispositif de transfert (10) ; transmet les données de transfert au second dispositif d'équipement (A2) si les informations de destination indiquent le dispositif de transfert (10) ; et retransfère les données de transfert au réseau de communication (N) si les informations de destination indiquent un dispositif autre que le dispositif de transfert (10).
PCT/JP2018/022339 2017-09-19 2018-06-12 Système de communication, dispositif de transfert, procédé de commande de communication, et support non temporaire lisible par ordinateur contenant un programme WO2019058659A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013009257A (ja) * 2011-06-27 2013-01-10 Alaxala Networks Corp 通信システム、通信装置およびパケット転送方法
JP2013012986A (ja) * 2011-06-30 2013-01-17 Nec Corp ユーザ／フロー単位のネットワーク代理接続システムおよび方法
WO2014033835A1 (fr) * 2012-08-28 2014-03-06 三菱電機株式会社 Système de réseau et appareils de communication
JP2015119383A (ja) * 2013-12-19 2015-06-25 日本電気株式会社 作業対象機器明示装置、システム、方法およびプログラム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013009257A (ja) * 2011-06-27 2013-01-10 Alaxala Networks Corp 通信システム、通信装置およびパケット転送方法
JP2013012986A (ja) * 2011-06-30 2013-01-17 Nec Corp ユーザ／フロー単位のネットワーク代理接続システムおよび方法
WO2014033835A1 (fr) * 2012-08-28 2014-03-06 三菱電機株式会社 Système de réseau et appareils de communication
JP2015119383A (ja) * 2013-12-19 2015-06-25 日本電気株式会社 作業対象機器明示装置、システム、方法およびプログラム

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