WO2020021779A1 - Système de communication, dispositif hôte, dispositif de collecte et procédé de communication - Google Patents

Système de communication, dispositif hôte, dispositif de collecte et procédé de communication Download PDF

Info

Publication number
WO2020021779A1
WO2020021779A1 PCT/JP2019/015440 JP2019015440W WO2020021779A1 WO 2020021779 A1 WO2020021779 A1 WO 2020021779A1 JP 2019015440 W JP2019015440 W JP 2019015440W WO 2020021779 A1 WO2020021779 A1 WO 2020021779A1
Authority
WO
WIPO (PCT)
Prior art keywords
monitoring
collection device
lower layer
communication
address
Prior art date
Application number
PCT/JP2019/015440
Other languages
English (en)
Japanese (ja)
Inventor
丸山剛史
小嶋隆夫
黒岩聡
岩間成美
酒井治
Original Assignee
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 住友電気工業株式会社 filed Critical 住友電気工業株式会社
Priority to JP2020532155A priority Critical patent/JP7279719B2/ja
Publication of WO2020021779A1 publication Critical patent/WO2020021779A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]

Definitions

  • the present invention relates to a communication system, a host device, a collection device, and a communication method.
  • This application claims priority based on Japanese Patent Application No. 2018-139233 filed on Jul. 25, 2018, and incorporates the entire disclosure thereof.
  • Patent Document 1 discloses the following configuration.
  • the network system installs a radio station on each of the towers on which the power transmission lines are erected, and connects a master station connectable to an external communication line to at least one of the radio stations to connect these radio stations.
  • information can be sequentially relayed bidirectionally from the wireless station to the master station or from the master station to the wireless station, and the wireless station can be relayed from one side of the tower row.
  • a transmission tower maintenance information wireless network system that relays the information stored in the communication memory to the other side and relays the information stored in the second communication memory to the one side.
  • An identification number is individually assigned, and the source of the information
  • the radio station transmits the information with the identification number of the radio station attached thereto, and the master station assigns the identification number of the radio station and the tower provided with the radio station.
  • a plurality of transmission lines are connected to the tower, and a plurality of tower numbers corresponding to each transmission line are assigned to the same tower.
  • the master station converts the identification number of the wireless station that transmitted the information into a plurality of tower numbers corresponding to each of the transmission lines.
  • the master station communicates with an upper-level host station via an external communication line such as a mobile phone line.
  • a communication system is a communication system used in an electric power system, and includes a plurality of monitoring devices that transfer information, a collection device that acquires the information transferred by the monitoring device, and a collection device.
  • a first lower layer that is a lower layer in communication between the upper device and the collection device, and a second lower layer that is a lower layer in communication between the collection device and the monitoring device.
  • the upper device holds first list information of a first terminal identifier used in the first lower layer and second list information of a second terminal identifier used in the second lower layer.
  • the plurality of monitoring devices, the collection device and the higher-level device, respectively different fixed second terminal identifier is fixedly assigned, The number of the monitoring device, the collection device and the host system, the second terminal identifier to transmit and receive stored packets as the source address and destination address.
  • the higher-level device of the present disclosure is a higher-level device in a communication system used in a power system, and the communication system acquires a plurality of monitoring devices that transfer information and the information that is transferred by the monitoring device. And a first lower layer that is a lower layer in communication between the higher-level device and the collection device, and a lower-level layer in communication between the higher-level device and the collection device.
  • the upper device includes first list information of a first terminal identifier used in the first lower layer and a second list information used in the second lower layer.
  • the second terminal that holds second list information of two terminal identifiers and is different for each of the plurality of monitoring devices, the collection device, and the host device.
  • the upper device is configured to transmit and receive a packet in which the second terminal identifier is stored as a source address and a destination address to and from the plurality of monitoring devices and the collection device. I do.
  • the collection device of the present disclosure is a collection device in a communication system used for an electric power system, and the communication system acquires a plurality of monitoring devices that transfer information and the information that is transferred by the monitoring device.
  • the collecting device, and a higher-level device communicable with the collecting device a first lower layer, which is a lower layer in communication between the higher-level device and the collecting device, between the collecting device and the monitoring device
  • the collection device Different from a second lower layer that is a lower layer in communication, the collection device includes first list information of a first terminal identifier used in the first lower layer, and a second list information used in the second lower layer.
  • the second terminal that holds second list information of two terminal identifiers and is different for each of the plurality of monitoring devices, the collection device, and the host device.
  • An identifier is fixedly assigned, and the collection device transmits and receives a packet in which the second terminal identifier is stored as a source address and a destination address to and from the plurality of monitoring devices and the higher-level device. I do.
  • a communication method is a communication method in a communication system used in an electric power system, wherein the communication system acquires a plurality of monitoring devices that transfer information and the information that is transferred by the monitoring device.
  • Communication device, and a higher-level device communicable with the collection device, and a first lower layer, which is a lower layer in communication between the higher-level device and the collection device, and communication between the collection device and the monitoring device Is different from a second lower layer that is a lower layer of the first device
  • the upper device includes first list information of a first terminal identifier used in the first lower layer, and a second list information used in the second lower layer.
  • the second terminal identification information holding second list information of terminal identifiers, wherein the plurality of monitoring devices, the collection device, and the higher-level device are different from each other in the second terminal identification.
  • the monitoring device, the collection device or the higher-level device transmits a packet in which the second terminal identifier is stored as a source address and a destination address; and Receiving the transmitted packet by the collection device or the higher-level device.
  • One embodiment of the present disclosure can be realized not only as a communication system including such a characteristic processing unit, but also as a program for causing a computer to execute such characteristic processing. Further, one embodiment of the present disclosure can be realized as a semiconductor integrated circuit that realizes part or all of a communication system.
  • one embodiment of the present disclosure can be realized not only as a higher-level device including such a characteristic processing unit, but also as a method having such characteristic processing as a step, or performing such a step on a computer. It can be realized as a program to be executed. Further, one embodiment of the present disclosure can be realized as a semiconductor integrated circuit that realizes part or all of a higher-level device.
  • one embodiment of the present disclosure can be realized not only as a collection device including such a characteristic processing unit, but also as a method having such characteristic processing as a step, or performing such a step on a computer. It can be realized as a program to be executed. Further, one embodiment of the present disclosure can be realized as a semiconductor integrated circuit that realizes part or all of the collection device.
  • FIG. 1 is a diagram showing a configuration of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating an application example of the communication system according to the embodiment of the present invention.
  • FIG. 3 is a block diagram showing a configuration of the monitoring parent device in the communication system according to the embodiment of the present invention.
  • FIG. 4 is a block diagram showing a configuration of the monitor device in the communication system according to the embodiment of the present invention.
  • FIG. 5 is a diagram showing an example of address assignment in the communication system according to the embodiment of the present invention.
  • FIG. 6 is a diagram illustrating an example of the first list information held by the higher-level device in the communication system according to the embodiment of the present invention.
  • FIG. 1 is a diagram showing a configuration of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating an application example of the communication system according to the embodiment of the present invention.
  • FIG. 3 is a block diagram showing a configuration of the monitoring parent device
  • FIG. 7 is a diagram illustrating an example of the second list information held by the higher-level device in the communication system according to the embodiment of the present invention.
  • FIG. 8 is a diagram illustrating an example of the first list information held by the collection device in the communication system according to the embodiment of the present invention.
  • FIG. 9 is a diagram illustrating an example of the first list information held by the collection device in the communication system according to the embodiment of the present invention.
  • FIG. 10 is a diagram illustrating an example of the second list information held by the collection device in the communication system according to the embodiment of the present invention.
  • FIG. 11 is a diagram showing an example of the second list information held by the collection device in the communication system according to the embodiment of the present invention.
  • FIG. 12 is a diagram illustrating an example of a main part of a packet in the communication system according to the embodiment of the present invention.
  • FIG. 13 is a diagram illustrating an example of a packet used between a higher-level device and a collection device in the communication system according to the embodiment of the present invention.
  • FIG. 14 is a diagram illustrating an example of a packet used between the collection device and the wireless master device in the communication system according to the embodiment of the present invention.
  • FIG. 15 is a diagram illustrating an example of a packet used between monitoring apparatuses in the communication system according to the embodiment of the present invention.
  • FIG. 16 is a diagram showing an example of an information transmission sequence in the communication system according to the embodiment of the present invention.
  • the communication protocol used between the wireless stations and between the wireless station and the master station is different from the communication protocol used between the master station and the upper host station.
  • the present disclosure has been made in order to solve the above-described problem, and an object of the present disclosure is to provide a communication system, a higher-level device, a collection device, and a communication method that can realize more stable operation in a power system. That is.
  • a communication system is a communication system used in an electric power system, and includes a plurality of monitoring devices that transfer information, and a collection device that acquires the information transferred by the monitoring device. And a higher-level device capable of communicating with the collection device.
  • a first lower-level layer which is a lower-level layer in communication between the higher-level device and the collection device, and a lower-level layer in communication between the collection device and the monitoring device.
  • the higher-level device includes first list information of a first terminal identifier used in the first lower layer, and second list information of a second terminal identifier used in the second lower layer.
  • the different second terminal identifiers are fixedly assigned to the plurality of monitoring devices, the collecting device, and the higher-level device, respectively.
  • the second terminal identifier to transmit and receive stored packets as the source address and destination address.
  • the first list information of the first terminal identifier used in the lower layer of the communication between the higher-level device and the collection device, and the second list information of the second terminal identifier used in the lower layer of the communication between the collection device and the monitoring device With the configuration in which the higher-level device holds the list information and the different second terminal identifiers are fixedly assigned to the plurality of monitoring devices, the collecting device, and the higher-level device, the lower layer and the collecting device between the higher-level device and the collecting device.
  • the difference in the lower layer between the monitoring devices and the monitoring device can be absorbed by the second terminal identifier.
  • the communication system includes a plurality of sets of the collection device and the plurality of monitoring devices, and a different network identifier is fixedly assigned to each of the sets, and the first list information includes: The correspondence between the network identifier and the first terminal identifier is indicated, the second list information indicates the correspondence between the network identifier and the second terminal identifier, and the packet further stores the network identifier. .
  • the host device is a host device in a communication system used for an electric power system, and the communication system is provided with a plurality of monitoring devices that transfer information and the monitoring device that transfers the information.
  • the higher device includes first list information of a first terminal identifier used in the first lower layer, and the second lower layer.
  • the second list information of the second terminal identifier used in the layer is retained, and each of the plurality of monitoring devices, the collection device, and the higher-level device is different.
  • the upper-level device is configured to assign a packet in which the second terminal identifier is stored as a source address and a destination address to the plurality of monitoring devices and the collection device. Send and receive between
  • the first list information of the first terminal identifier used in the lower layer of the communication between the higher-level device and the collection device, and the second list information of the second terminal identifier used in the lower layer of the communication between the collection device and the monitoring device With the configuration in which the higher-level device holds the list information and the different second terminal identifiers are fixedly assigned to the plurality of monitoring devices, the collecting device, and the higher-level device, the lower layer and the collecting device between the higher-level device and the collecting device.
  • the difference in the lower layer between the monitoring devices and the monitoring device can be absorbed by the second terminal identifier.
  • a collection device is a collection device in a communication system used in an electric power system, wherein the communication system is configured to include a plurality of monitoring devices that transfer information, and a plurality of monitoring devices that transfer information.
  • the collecting device for acquiring the information, and a higher-level device capable of communicating with the collecting device, a first lower layer being a lower layer in communication between the higher-level device and the collecting device, the collecting device, and Different from a second lower layer which is a lower layer in the communication between the monitoring devices, the collecting device is configured to include first list information of a first terminal identifier used in the first lower layer, and the second lower layer.
  • the second list information of the second terminal identifier used in the layer is retained, and each of the plurality of monitoring devices, the collection device, and the higher-level device is different.
  • the second terminal identifier is fixedly assigned, and the collection device transmits a packet in which the second terminal identifier is stored as a source address and a destination address to the plurality of monitoring devices and the higher-level device. Send and receive between
  • the first list information of the first terminal identifier used in the lower layer of the communication between the higher-level device and the collection device, and the second list information of the second terminal identifier used in the lower layer of the communication between the collection device and the monitoring device With the configuration in which the collection device holds the list information and the different second terminal identifiers are fixedly assigned to the plurality of monitoring devices, the collection device, and the higher device, respectively, the lower layer and the collection device between the higher device and the collection device.
  • the difference in the lower layer between the monitoring devices and the monitoring device can be absorbed by the second terminal identifier.
  • a communication method is a communication method in a communication system used for an electric power system, wherein the communication system includes a plurality of monitoring devices that transfer information, and a plurality of monitoring devices that transfer information.
  • the second terminal identifier is fixedly assigned, and the monitoring device, the collection device, or the higher-level device transmits a packet in which the second terminal identifier is stored as a source address and a destination address. Receiving the transmitted packet by the monitoring device, the collection device, or the higher-level device.
  • the first list information of the first terminal identifier used in the lower layer of the communication between the higher-level device and the collection device, and the second list information of the second terminal identifier used in the lower layer of the communication between the collection device and the monitoring device With the configuration in which the higher-level device holds the list information and the different second terminal identifiers are fixedly assigned to the plurality of monitoring devices, the collecting device, and the higher-level device, the lower layer and the collecting device between the higher-level device and the collecting device.
  • the difference in the lower layer between the monitoring devices and the monitoring device can be absorbed by the second terminal identifier.
  • FIG. 1 is a diagram showing a configuration of a communication system according to an embodiment of the present invention.
  • communication system 301 is a communication system used for an electric power system.
  • the communication system 301 is, for example, a communication system attached to a power transmission facility installed between a power plant and a customer of power, and detects, for example, a lightning strike position on the power transmission facility, It is used for temperature monitoring and maintenance of power transmission facilities.
  • the communication system 301 includes one or a plurality of monitoring systems T and a host device 181.
  • the monitoring system T includes a collection device 151 and one or more monitoring devices 101.
  • the communication system 301 includes two monitoring systems T1 and T2 as the monitoring system T.
  • the monitoring device 101 has a function of transferring information.
  • “transfer” includes, for example, relaying information to a relay destination and transmitting information to a relay destination as a source of information.
  • the monitoring apparatus 101 transmits, for example, information received by itself to another monitoring apparatus 101 different from the other monitoring apparatus 101 as “transfer”. Is transmitted to the other monitoring apparatus 101.
  • the monitoring device 101 is a device having a wireless communication function.
  • the monitoring apparatus 101 performs specific low-power wireless communication using a communication band of, for example, a 920 MHz band.
  • the types of the monitoring device 101 include a monitoring parent device 102 having a function as a parent device and a monitoring child device 103 having a function as a child device and performing wireless communication with the monitoring parent device 102.
  • the monitoring parent device 102 and the plurality of monitoring child devices 103 perform multi-hop communication.
  • the plurality of monitoring devices 101 transmit information serially via a wireless transmission path, that is, are connected in series via a wireless transmission path. That is, in the communication system 301, a plurality of monitoring apparatuses 101 does not constitute a transmission path arranged in parallel or in a mesh, but a wireless transmission path in which the plurality of monitoring apparatuses 101 are arranged in series.
  • the monitoring system T includes one monitoring parent device 102 and one or a plurality of monitoring child devices 103.
  • the higher-level device 181 is a device that can communicate with the collection device 151.
  • the host device 181 can communicate with the collection device 151 via, for example, a mobile phone line.
  • the collection device 151 receives the information transmitted from the monitoring parent device 102 and transfers the received information to the higher-level device 181. Further, the collection device 151 receives the information transmitted from the higher-level device 181 and transfers the received information to the monitoring parent device 102.
  • the monitor device 103 side as viewed from the host device 181 may be referred to as “downstream side”, and the host device 181 side as viewed from the monitor device 103 may be referred to as “upstream side”.
  • the direction from the host device 181 to the monitor device 103 may be referred to as “downward direction”, and the direction from the monitor device 103 to the host device 181 may be referred to as “upward direction”.
  • the number of monitoring devices 101 included in the monitoring system T is not particularly limited, and is, for example, 50 or more.
  • the monitoring parent device 102 acquires the measurement information indicating the measurement result of the sensor in itself, and transfers the acquired measurement information to the collection device 151.
  • the monitoring parent device 102 acquires the measurement information from the monitoring child device 103, and transfers the acquired measurement information to the collection device 151. Further, the monitoring parent device 102 receives setting information and the like from the collection device 151 and transfers the received setting information and the like to the monitoring child device 103.
  • the monitor device 103 acquires the measurement information indicating the measurement information of the sensor in itself, and transfers the acquired measurement information to another monitor device 103 or the parent device 102 on the upstream side.
  • the monitor device 103 acquires the measurement information from the other monitor device 103 on the downstream side and transfers the acquired measurement information to the other monitor device 103 or the parent device 102 on the upstream side. Further, the monitor device 103 receives setting information and the like from the other monitor device 103 or the parent device 102 on the upstream side, and transfers the received setting information and the like to the other monitor device 103 on the downstream side.
  • the collection device 151 and the monitoring device 101 process without transferring the information.
  • FIG. 2 is a diagram showing an application example of the communication system according to the embodiment of the present invention.
  • a plurality of monitoring devices 101 are installed at different positions in the power system, for example, at a plurality of positions where information necessary for maintenance of the power system can be detected.
  • a plurality of monitoring devices 101 are respectively installed in a plurality of steel towers 2 provided in an electric power system.
  • the overhead ground wire 3 and the transmission line 4 are installed between the adjacent steel towers 2.
  • the monitoring device 101 may be installed in all the towers 2 in the section to be monitored, or may be installed in some of the towers 2 in the section to be monitored.
  • the monitoring devices 101 may be installed in, for example, every other, every two, or every third of the plurality of steel towers 2 arranged side by side. In the example shown in FIG. 2, every other monitoring device 101 is installed. Whether to install the monitoring device 101 on all the towers 2 or on some of the towers 2 is determined based on, for example, the installation intervals of the towers 2 and the like.
  • the monitoring device 101 is not limited to the tower 2 and may be installed around the tower 2, or may be installed on the power transmission line 4, the overhead ground wire 3 or the ground, for example.
  • FIG. 3 is a block diagram showing a configuration of the monitoring parent device in the communication system according to the embodiment of the present invention.
  • monitoring parent device 102 includes communication unit 104, battery 106, control unit 107, storage unit 108, and sensor 111.
  • the communication unit 104 transmits, to the collection device 151, measurement information indicating the amount of charge measured by the sensor 111 of its own monitoring parent device 102.
  • the communication unit 104 and the collection device 151 are, for example, connected by wire, and perform serial communication with each other.
  • the battery 106 supplies power to the control unit 107, the sensor 111, the communication unit 104, the storage unit 108, and the like.
  • the control unit 107 controls operations of the sensor 111, the communication unit 104, and the like. Specifically, for example, the control unit 107 periodically performs control to turn on the communication unit 104 and turn off the communication unit 104 after a predetermined time has elapsed.
  • the sensor 111 measures the charge amount of the overhead ground wire 3 as an example.
  • the detection target of the sensor 111 is not particularly limited.
  • control unit 107 controls, for example, a switch (not shown). As a result, control is performed to start the power supply from the battery 106 to the sensor 111 and to change the sensor 111 from the off state to the on state.
  • the control unit 107 receives the measurement information indicating the amount of charge measured by the sensor 111 and outputs the received measurement information to the communication unit 104. Then, for example, when a predetermined time elapses after the sensor 111 is turned on, the control unit 107 stops power supply from the battery 106 to the sensor 111 by controlling a switch (not shown), for example. Control is performed to make a transition from the on state to the off state.
  • the storage unit 108 stores a short address and the like, which will be described later, assigned to its own monitoring parent device 102.
  • the collection device 151 transmits the measurement information received from the monitoring parent device 102 to the higher-level device 181.
  • the higher-level device 181 receives the measurement information from the collection device 151 and performs various calculations based on the received measurement information. For example, the higher-level device 181 receives measurement information indicating the amount of charge from the plurality of monitoring devices 101 via the collection device 151, and distributes the amount of charge between the plurality of steel towers 2 based on the amount of charge indicated by the received measurement information. Is calculated, and the lightning strike position is estimated based on the calculated distribution of the charge amount.
  • FIG. 4 is a block diagram showing a configuration of a monitor device in the communication system according to the embodiment of the present invention.
  • monitor device 103 includes communication unit 105, battery 106, control unit 107, storage unit 108, and sensor 111.
  • the communication unit 105 transmits measurement information indicating the amount of charge measured by the sensor 111 of its own monitor device 103 to the other monitor device 103 or the parent device 102 on the upstream side.
  • the communication unit 105 transfers the received measurement information to the other monitor device 103 or the parent device 102 on the upstream side.
  • FIG. 5 is a diagram showing an example of address assignment in the communication system according to the embodiment of the present invention.
  • the communication system 301 includes the monitor device 103_1 and the monitor device 103_2 that are the monitor devices 103.
  • the monitor device 103_1 and the monitor device 103_2 are installed in this order from the upstream side.
  • a first lower layer that is a lower layer in communication between upper device 181 and collection device 151
  • a first lower layer that is a lower layer in communication between collection device 151 and monitoring device 101. 2 lower layers.
  • communication using, for example, a mobile phone line is performed between the higher-level device 181 and the collection device 151.
  • a communication protocol for a mobile phone line for example, IP is used as a first lower layer communication protocol between the higher-level device 181 and the collection device 151.
  • serial communication is performed between the collection device 151 and the monitoring parent device 102.
  • a communication protocol for serial communication is used as the second lower layer communication protocol between the collection device 151 and the monitoring parent device 102.
  • the monitoring parent device 102 and the monitoring child device 103 and between the monitoring child devices 103 for example, specific low-power wireless communication using a 920 MHz communication band in accordance with the communication standard of IEEE 802.15.4 is performed.
  • the communication protocol for the specified low-power wireless communication is used as a second lower layer communication protocol between the monitoring parent device 102 and the monitoring child device 103 and between the monitoring child devices 103.
  • the upper device 181 stores a first terminal identifier used in the first lower layer, for example, first list information of an IP address in a storage unit (not shown).
  • FIG. 6 is a diagram showing an example of the first list information held by the higher-level device in the communication system according to the embodiment of the present invention.
  • first list information TL ⁇ b> 1 indicates a correspondence relationship among PAN_ID, IP address of higher-level device 181, and IP address of collection device 151 for each monitoring system T managed by higher-level device 181.
  • the upper device 181 stores a second terminal identifier used in the second lower layer, for example, second list information of a short address in a storage unit (not shown).
  • FIG. 7 is a diagram showing an example of the second list information held by the higher-level device in the communication system according to the embodiment of the present invention.
  • the second list information TL2 includes a monitoring system number, a PAN_ID, a short address of the upper device 181 and a short address of the collection device 151 for each monitoring system T managed by the higher device 181.
  • the correspondence between the short address and the tower number of the monitoring parent device 102, the short address and the tower number of the monitor device 103_1, and the short address and the tower number of the monitor device 103_2 are shown.
  • the monitoring system number and tower number indicate the installation location of the tower.
  • the user can designate the monitoring apparatus 101 or the like in a desired tower for the upper apparatus 181 and acquire various information. it can.
  • the collection device 151 stores a first terminal identifier used in the first lower layer, for example, first list information of an IP address in a storage unit (not shown).
  • the first list information is list information of IP addresses given to the higher-level device 181 and the collection device 151.
  • FIG. 8 is a diagram showing an example of the first list information held by the collection device in the communication system according to the embodiment of the present invention.
  • FIG. 8 shows an example of the first list information held by the collection device 151 belonging to the monitoring system T1.
  • first list information SL1 indicates a correspondence relationship between PAN_ID of monitoring system T1, an IP address of higher-level device 181, and an IP address of collection device 151.
  • FIG. 9 is a diagram showing an example of the first list information held by the collection device in the communication system according to the embodiment of the present invention.
  • FIG. 9 shows an example of the first list information held by the collection device 151 belonging to the monitoring system T2.
  • the first list information SL1 indicates the correspondence between the PAN_ID of the monitoring system T2, the IP address of the higher-level device 181, and the IP address of the collection device 151.
  • the collection device 151 stores a second terminal identifier used in the second lower layer, for example, second list information of a short address in a storage unit (not shown).
  • the second list information is list information of short addresses given to the higher-level device 181, the collection device 151, the monitoring parent device 102, and the monitoring child device 103.
  • FIG. 10 is a diagram showing an example of the second list information held by the collection device in the communication system according to the embodiment of the present invention.
  • FIG. 10 illustrates an example of the second list information held by the collection device 151 belonging to the monitoring system T1.
  • second list information SL2 includes a monitoring system number, a PAN_ID, a short address of higher-level device 181, a short address of collection device 151, and a short address of monitoring parent device 102 of monitoring system T1. It shows a correspondence relationship between the short address and the tower number, the short address and the tower number of the monitor device 103_1, and the short address and the tower number of the monitor device 103_2.
  • FIG. 11 is a diagram showing an example of the second list information held by the collection device in the communication system according to the embodiment of the present invention.
  • FIG. 11 illustrates an example of the second list information held by the collection device 151 belonging to the monitoring system T2.
  • second list information SL2 includes a monitoring system number, a PAN_ID, a short address of higher-level device 181, a short address of collection device 151, and a short address of monitoring parent device 102 of monitoring system T2. It shows a correspondence relationship between the short address and the tower number, the short address and the tower number of the monitor device 103_1, and the short address and the tower number of the monitor device 103_2.
  • different first terminal identifiers for example, IP addresses are fixedly assigned to the collection device 151 and the higher-level device 181, respectively.
  • Different second terminal identifiers for example, short addresses are fixedly assigned to the collection device 151, the monitoring parent device 102, the monitoring child device 103, and the higher-level device 181, respectively.
  • PAN_ID Personal Area Network Identification
  • the monitoring parent device 102, the plurality of monitoring child devices 103, the collection device 151, and the higher-level device 181 are configured to use a second terminal identifier as a source address and a destination address, for example, a source short address and a destination short address. Transmit and receive the stored packets.
  • FIG. 12 is a diagram showing an example of a main part of a packet in the communication system according to the embodiment of the present invention.
  • a packet transmitted between higher-level device 181 and collection device 151 includes a TCP / IP header, a routing header, an application header, and an application payload.
  • the TCP / IP header and the routing header are used for lower layer communication, and the application header and application payload are used for upper layer communication.
  • the packet may include data other than the contents shown in FIG.
  • the host device 181 can recognize the contents of the application header and the application payload.
  • the collection device 151 cannot recognize the contents of the application header and the application payload.
  • the packet transmitted between the collection device 151 and the monitoring parent device 102 includes a serial header, a routing header, an application header, and an application payload.
  • the serial header and the routing header are used for lower layer communication, and the application header and application payload are used for upper layer communication.
  • the collection device 151 and the monitoring parent device 102 can recognize the contents of the serial header and the routing header, but cannot recognize the contents of the application header and the application payload.
  • the packet transmitted between the monitoring parent device 102 and the monitoring child device 103 includes a radio header, a routing header, an application header, and an application payload.
  • the radio header and the routing header are used for lower layer communication, and the application header and application payload are used for upper layer communication.
  • the monitoring parent device 102 and the monitoring child device 103 can recognize the contents of the radio header and the routing header, but cannot recognize the contents of the application header and the application payload.
  • the packet transmitted between the monitor devices 103 includes a radio header, a routing header, an application header, and an application payload.
  • the radio header and the routing header correspond to the lower layer
  • the application header and the application payload correspond to the upper layer.
  • the monitor device 103 can recognize the contents of the radio header and the routing header, but cannot recognize the contents of the application header and the application payload.
  • FIG. 13 is a diagram illustrating an example of a packet used between the higher-level device and the collection device in the communication system according to the embodiment of the present invention.
  • FIG. 13 shows the format of an IP packet.
  • the IP packet includes a TCP / IP header and a routing packet stored in the payload.
  • the TCP / IP header includes, for example, a "destination IP address" and a "source IP address”.
  • the routing packet includes, for example, a routing header and an application packet stored in the payload.
  • the routing header includes, for example, “destination PAN_ID”, “source PAN_ID”, “destination short address”, and “source short address”.
  • the application packet includes, for example, an application header and an application payload.
  • the application payload contains target information such as measurement information.
  • the target information includes, for example, information used for maintenance of a power system such as a power transmission facility.
  • the target information includes, for example, measurement information indicating the amount of electric charge used for detecting the position of the lightning strike on the power transmission equipment, and the temperature used for monitoring the temperature of the transmission line 4.
  • the target information includes, for example, measurement information indicating the amount of electric charge used for detecting the position of the lightning strike on the power transmission equipment, and the temperature used for monitoring the temperature of the power transmission line 4. Measurement information, or measurement information indicating the inclination of the transmission line 4 due to slack or the like.
  • the target information is, for example, measurement information indicating the amount of charge used to detect the position of the lightning strike on the power transmission equipment, and is used for monitoring the temperature of the overhead ground wire 3. It includes measurement information indicating the temperature, measurement information indicating the inclination of the overhead ground wire 3 due to slack, and the like.
  • the target information is, for example, measurement information indicating the inclination of the ground, measurement information indicating the vibration of the ground, or indicating the depth of snow on the ground. Includes measurement information and the like.
  • the detection target of the sensor 111 and the type of the sensor 111 in the monitoring device 101 are appropriately set according to the type of the target information.
  • FIG. 14 is a diagram showing an example of a packet used between the collection device and the wireless master device in the communication system according to the embodiment of the present invention.
  • FIG. 14 shows a format of a serial packet transmitted by serial communication.
  • the serial packet includes a serial header and a routing packet stored in the payload.
  • the serial header is a header used for serial communication.
  • the routing packet has the same contents as the routing packet shown in FIG.
  • FIG. 15 is a diagram showing an example of a packet used between monitoring apparatuses in the communication system according to the embodiment of the present invention.
  • FIG. 15 shows a format of a wireless packet transmitted by 920 MHz specific low-power wireless communication.
  • the wireless packet includes a wireless header and a routing packet stored in the payload.
  • the wireless header is a header used for specific low-power wireless communication.
  • the routing packet has the same contents as the routing packet shown in FIG.
  • Each device in the communication system 301 includes a computer including a memory, and an arithmetic processing unit such as a CPU in the computer reads a program including a part or all of each step of the following sequence diagram or flowchart from the memory, respectively. Execute.
  • Each of the programs of the plurality of devices can be externally installed. The programs of the plurality of devices are distributed while being stored in a recording medium.
  • FIG. 16 is a diagram showing an example of an information transmission sequence in the communication system according to the embodiment of the present invention.
  • FIG. 16 shows eight transmission examples 1 to 8 of a packet in the host device 181 and the monitoring system T1, that is, between the host device 181, the collection device 151, the monitoring parent device 102, and the two monitoring child devices 103_1 and 103_2. The example which is performed in order is shown.
  • the higher-level device 181 transmits an IP packet including the setting information of the collection device 151 to the collection device 151.
  • This IP packet includes “0x0001” as the destination PAN_ID, “192.168.1.3” as the destination IP address, “192.168.1.2” as the source IP address, and "0xFFFD” is included as the destination short address, and "0xFFFE” is included as the source short address.
  • This IP packet does not include the source PAN_ID.
  • the collection device 151 receives and processes the IP packet from the higher-level device 181.
  • the collection device 151 transmits an IP packet including measurement information and the like to the higher-level device 181.
  • This IP packet includes “0x0001” as the source PAN_ID, “192.168.1.2” as the destination IP address, “192.168.1.3” as the source IP address, and “0xFFFE” is included as the destination short address, and “0xFFFD” is included as the source short address.
  • This IP packet does not include the destination PAN_ID.
  • the higher-level device 181 receives and processes the IP packet from the collection device 151.
  • the higher-level device 181 transmits an IP packet including setting information of the monitoring parent device 102 to the collection device 151.
  • This IP packet includes “0x0001” as the destination PAN_ID, “192.168.1.3” as the destination IP address, “192.168.1.2” as the source IP address, and It includes “0x0000” as the destination short address and “0xFFFE” as the source short address. This IP packet does not include the source PAN_ID.
  • the collection device 151 deletes the TCP / IP header of the received IP packet, creates a serial packet by adding a serial header, and monitors the created serial packet. Send to parent device 102.
  • This serial packet includes “0x0001” as the destination PAN_ID, “0x0000” as the destination short address, and “0xFFFE” as the source short address. This serial packet does not include the source PAN_ID.
  • the monitoring parent device 102 receives and processes the serial packet from the collection device 151.
  • the monitoring parent device 102 transmits a serial packet including measurement information and the like to the collection device 151.
  • This serial packet includes “0x0001” as the source PAN_ID, “0xFFFE” as the destination short address, and “0x0000” as the source short address. This serial packet does not include the destination PAN_ID.
  • the collection device 151 when the collection device 151 receives the serial packet from the monitoring parent device 102, it deletes the serial header of the received serial packet and adds a TCP / IP header to create an IP packet. This is transmitted to the host device 181.
  • This IP packet includes “0x0001” as the source PAN_ID, “0xFFFE” as the destination short address, and “0x0000” as the source short address. This IP packet does not include the destination PAN_ID.
  • the higher-level device 181 receives and processes the IP packet from the collection device 151.
  • the higher-level device 181 transmits an IP packet including setting information of the monitor device 103_2 to the collection device 151.
  • This IP packet includes “0x0001” as the destination PAN_ID, “192.168.1.3” as the destination IP address, “192.168.1.2” as the source IP address, and It includes “0x0002” as the destination short address and “0xFFFE” as the source short address. This IP packet does not include the source PAN_ID.
  • the collection device 151 deletes the TCP / IP header of the received IP packet, creates a serial packet by adding a serial header, and monitors the created serial packet. Send to parent device 102.
  • This serial packet includes “0x0001” as the destination PAN_ID, “0x0002” as the destination short address, and “0xFFFE” as the source short address. This serial packet does not include the source PAN_ID.
  • the monitoring parent device 102 deletes the serial header of the received serial packet, adds a wireless header to create a wireless packet, and monitors the created wireless packet as a monitor. Transmit to the device 103_1.
  • the wireless packet includes “0x0001” as the destination PAN_ID, “0x0001” as the destination wireless address, “0x0000” as the source wireless address, “0x0002” as the destination short address, and "0xFFFE” is included as the short address. This wireless packet does not include the source PAN_ID.
  • the monitor child device 103_1 upon receiving the wireless packet from the monitoring parent device 102, deletes the wireless header of the received wireless packet, and creates and creates a new wireless packet by adding a new wireless header.
  • the wireless packet is transmitted to the monitor device 103_2.
  • the wireless packet includes “0x0001” as the destination PAN_ID, “0x0002” as the destination wireless address, “0x0001” as the source wireless address, “0x0002” as the destination short address, and "0xFFFE" is included as the short address.
  • This wireless packet does not include the source PAN_ID.
  • the monitor device 103_2 receives and processes the wireless packet from the monitor device 103_1.
  • monitor device 103_2 transmits a wireless packet including measurement information and the like to monitor device 103_1.
  • the wireless packet includes “0x0001” as the source PAN_ID, “0x0001” as the destination wireless address, “0x0002” as the source wireless address, “0xFFFE” as the destination short address, and “0x0002” is included as the short address. This wireless packet does not include the destination PAN_ID.
  • the monitor child device 103_1 upon receiving the wireless packet from the monitor child device 103_2, the monitor child device 103_1 deletes the wireless header of the received wireless packet, and creates and creates a new wireless packet by adding a new wireless header.
  • the wireless packet is transmitted to the monitoring parent device 102.
  • the wireless packet includes “0x0001” as the source PAN_ID, “0x0000” as the destination wireless address, “0x0001” as the source wireless address, “0xFFFE” as the destination short address, and “0x0002” is included as the short address. This wireless packet does not include the destination PAN_ID.
  • the monitoring parent device 102 when the monitoring parent device 102 receives a wireless packet from the monitoring child device 103_1, the monitoring parent device 102 deletes a wireless header of the received wireless packet, adds a serial header to create a serial packet, and collects the created serial packet. Transmit to the device 151.
  • This serial packet includes “0x0001” as the source PAN_ID, “0xFFFE” as the destination short address, and “0x0002” as the source short address. This serial packet does not include the destination PAN_ID.
  • the collection device 151 when the collection device 151 receives the serial packet from the monitoring parent device 102, it deletes the serial header of the received serial packet and adds a TCP / IP header to create an IP packet. This is transmitted to the host device 181.
  • This IP packet includes “0x0001” as the source PAN_ID, “192.168.1.2” as the destination IP address, “192.168.1.3” as the source IP address, and "0xFFFE” is included as the destination short address, and "0x0002" is included as the source short address.
  • This IP packet does not include the destination PAN_ID.
  • the higher-level device 181 receives and processes the IP packet from the collection device 151.
  • the monitoring parent device 102 transmits a wireless packet including information for setting the monitoring child device 103_2 to the monitoring child device 103_1.
  • This wireless packet includes “0x0001” as the destination PAN_ID, “0x0001” as the source PAN_ID, “0x0001” as the destination wireless address, “0x0000” as the source wireless address, and the destination short-circuit.
  • the address includes “0x0002” and the source short address includes “0x0000”.
  • the monitor child device 103_1 upon receiving the wireless packet from the monitoring parent device 102, deletes the wireless header of the received wireless packet, and creates and creates a new wireless packet by adding a new wireless header.
  • the wireless packet is transmitted to the monitor device 103_2.
  • the wireless packet includes “0x0001” as the destination PAN_ID, “0x0001” as the source PAN_ID, “0x0002” as the destination wireless address, “0x0001” as the source wireless address, and the destination short-circuit.
  • the address includes “0x0002” and the source short address includes “0x0000”.
  • the monitor device 103_2 receives and processes the wireless packet from the monitor device 103_1.
  • the monitor device 103_2 transmits a wireless packet including information such as measurement information to the monitor device 103_1.
  • This wireless packet includes “0x0001” as the destination PAN_ID, “0x0001” as the source PAN_ID, “0x0001” as the destination wireless address, “0x0002” as the source wireless address, and the destination short-circuit.
  • the address includes “0x0000” and the source short address includes “0x0002”.
  • the monitor child device 103_1 upon receiving the wireless packet from the monitor child device 103_2, the monitor child device 103_1 deletes the wireless header of the received wireless packet, and creates and creates a new wireless packet by adding a new wireless header.
  • the wireless packet is transmitted to the monitoring parent device 102.
  • This wireless packet includes “0x0001” as the destination PAN_ID, “0x0001” as the source PAN_ID, “0x0000” as the destination wireless address, “0x0001” as the source wireless address, and the destination short-circuit.
  • the address includes “0x0000” and the source short address includes “0x0002”.
  • the monitoring parent device 102 receives and processes the wireless packet from the monitoring child device 103_1.
  • the packet transmitted between the devices includes the PAN_ID.
  • the host device 181 can recognize the error.
  • the communication system 301 may have a configuration in which a packet transmitted between the devices does not include the PAN_ID.
  • the monitoring device 101 is provided with the sensor 111, but the present invention is not limited to this.
  • the sensor 111 may be provided outside the monitoring device 101.
  • the sensor 111 transmits information indicating the measurement result to the monitoring device 101 by wire communication or wireless communication.
  • the communication system according to the embodiment of the present invention may have a configuration in which some of the plurality of monitoring devices 101 include the sensor 111.
  • a configuration may be adopted in which some of the plurality of monitoring devices 101 include the sensor 111, and other monitoring devices 101 do not include the sensor 111.
  • the sensor 111 may be provided outside the monitoring device 101 having no sensor 111, and the sensor 111 may transmit measurement information indicating a measurement result to the monitoring device 101.
  • the monitoring apparatus 101 without the sensor 111 may be configured to transfer information from another monitoring apparatus 101 to another monitoring apparatus 101 without being a source of information.
  • one of the transfer of the wireless packet in the uplink and the transfer of the wireless packet in the downlink may be performed. Good.
  • the communication protocol used between the wireless stations and between the wireless station and the master station is different from the communication protocol used between the master station and the upper host station.
  • a method 1 in which an upper host station and a master station are provided with an address table for converting an address used in each communication protocol, and a wireless station A method 2 is considered in which the communication protocol used between the master station and the wireless station and the master station is matched with the communication protocol used between the master station and the host station.
  • the higher-level device 181 performs the first list information of the IP address used in the first lower-level layer in the communication between the higher-level device 181 and the collection device 151.
  • the second list information of short addresses used in the second lower layer in communication between the device 151 and the monitoring parent device 102 and between the monitoring parent device 102 and the monitoring child device 103 is held.
  • different short addresses are fixedly assigned to the monitoring parent device 102, the monitoring child device 103, the collection device 151, and the higher-level device 181, respectively.
  • the plurality of monitoring devices 101, the collection device 151, and the higher-level device 181 transmit and receive a packet in which a short address is stored as a source address and a destination address.
  • the first list information of the IP address used in the lower layer of the communication between the higher-level device 181 and the collection device 151 and the second list of the short address used in the lower layer of the communication between the collection device 151 and the monitoring device 101 With the configuration in which the higher-level device 181 holds the list information and different short addresses are fixedly assigned to the plurality of monitoring devices 101, the collection device 151, and the higher-level device 181, respectively, the lower level between the higher-level device 181 and the collection device 151 is set. Differences between layers and lower layers between the collection device 151 and the monitoring device 101 can be absorbed by the short address. This eliminates the need for an address table for converting addresses used in each communication protocol in the host device 181 and the collection device 151. Therefore, there is no need to perform the address conversion processing in the higher-level device 181 and the collecting device 151, and it is not necessary to match the updating of the address table between the higher-level device 181 and the collecting device 151.
  • the communication system includes a set of the collection device 151 and the plurality of monitoring devices 101, that is, a plurality of monitoring systems T.
  • a different PAN_ID is fixedly assigned to each monitoring system T.
  • the first list information indicates the correspondence between the PAN_ID and the IP address, and the second list information indicates the correspondence between the PAN_ID and the short address.
  • the PAN_ID is further stored in the packet.
  • the upper device includes first list information of an IP address used in a first lower layer in communication between the upper device 181 and the collecting device 151, and communication between the collecting device 151 and the monitoring parent device 102. , And second list information of short addresses used in the second lower layer in the communication between the monitoring parent device 102 and the monitoring child device 103. Then, different short addresses are fixedly assigned to the monitoring parent device 102, the monitoring child device 103, the collection device 151, and the higher-level device 181.
  • the higher-level device 181 transmits and receives a packet in which a short address is stored as a source address and a destination address between the plurality of monitoring devices 101 and the collection device 151.
  • the first list information of the IP address used in the lower layer of the communication between the higher-level device 181 and the collection device 151 and the second list of the short address used in the lower layer of the communication between the collection device 151 and the monitoring device 101 With the configuration in which the higher-level device 181 holds the list information and different short addresses are fixedly assigned to the plurality of monitoring devices 101, the collection device 151, and the higher-level device 181, respectively, the lower level between the higher-level device 181 and the collection device 151 is set. Differences between layers and lower layers between the collection device 151 and the monitoring device 101 can be absorbed by the short address. This eliminates the need for an address table for converting addresses used in each communication protocol in the host device 181 and the collection device 151. Therefore, there is no need to perform the address conversion processing in the higher-level device 181 and the collecting device 151, and it is not necessary to match the updating of the address table between the higher-level device 181 and the collecting device 151.
  • the higher-level device according to the embodiment of the present invention can realize more stable operation in the power system.
  • the collection device includes first list information of an IP address used in a first lower layer in communication between the higher-level device 181 and the collection device 151, the first list information between the collection device 151 and the monitoring parent device 102. , And second list information of short addresses used in the second lower layer in the communication between the monitoring parent device 102 and the monitoring child device 103. Then, different short addresses are fixedly assigned to the monitoring parent device 102, the monitoring child device 103, the collection device 151, and the higher-level device 181, respectively.
  • the collection device 151 transmits and receives a packet in which a short address is stored as a transmission source address and a transmission destination address to and from the plurality of monitoring devices 101 and the host device 181.
  • the first list information of the IP address used in the lower layer of the communication between the higher-level device 181 and the collection device 151 and the second list of the short address used in the lower layer of the communication between the collection device 151 and the monitoring device 101 The collection device 151 holds the list information and the different short addresses are fixedly assigned to the plurality of monitoring devices 101, the collection device 151, and the higher-level device 181, respectively. Differences between layers and lower layers between the collection device 151 and the monitoring device 101 can be absorbed by the short address. This eliminates the need for an address table for converting addresses used in each communication protocol in the host device 181 and the collection device 151. Therefore, there is no need to perform the address conversion processing in the higher-level device 181 and the collecting device 151, and it is not necessary to match the updating of the address table between the higher-level device 181 and the collecting device 151.
  • the collection device can realize more stable operation in the power system.
  • upper device 181 includes first list information of an IP address used in a first lower layer in communication between upper device 181 and collection device 151, collection device 151, The second list information of the short addresses used in the second lower layer in the communication between the monitoring parent devices 102 and between the monitoring parent device 102 and the monitoring child device 103 is held. Further, different short addresses are fixedly assigned to the monitoring parent device 102, the monitoring child device 103, the collecting device 151, and the higher-level device 181, respectively.
  • the monitoring device 101, the collection device 151, or the higher-level device 181 transmits a packet in which a short address is stored as a source address and a destination address.
  • the monitoring device 101, the collection device 151, or the higher-level device 181 receives the packet.
  • the upper device 181 holds the first list information of the IP address used in the first lower layer and the second list information of the short address used in the second lower layer, and includes a plurality of monitoring devices. 101, a different short address is fixedly assigned to each of the collection device 151 and the upper device 181, and the difference between the lower layer between the higher device 181 and the collection device 151 and the difference between the lower layer between the collection device 151 and the monitoring device 101 are short-circuited. Can be absorbed by address. This eliminates the need for an address table for converting addresses used in each communication protocol in the host device 181 and the collection device 151. Therefore, there is no need to perform the address conversion processing in the higher-level device 181 and the collection device 151, and it is not necessary to match the updating of the address table between the higher-level device 181 and the collection device 151.
  • the communication method according to the embodiment of the present invention can realize more stable operation in the power system.
  • a communication system used for an electric power system A plurality of monitoring devices for transferring information;
  • a collection device that acquires the measurement information transferred by the monitoring device, Comprising a higher-level device capable of communicating with the collection device, A first lower layer that is a lower layer in communication between the upper device and the collection device and a second lower layer that is a lower layer in communication between the collection device and the monitoring device are different,
  • the higher-level device holds first list information of a first terminal identifier used in the first lower layer, and second list information of a second terminal identifier used in the second lower layer,
  • the different second terminal identifier is fixedly assigned to each of the plurality of monitoring devices, the collection device, and the higher-level device,
  • the plurality of monitoring devices, the collection device and the higher-level device transmit and receive a packet in which the second terminal identifier is stored as a source address and a destination address,
  • the communication system wherein the second list information further indicates a correspondence between the installation location of the tower and the
  • monitoring device 102 monitoring parent device 103, 103_1, 103_2 monitoring device 104, 105 communication unit 106 battery 107 control unit 108 storage unit 111 sensor 151 collection device 181 host device 301 communication system T, T1, T2 monitoring system TL1, SL1 first list information TL2, SL2 second list information

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Ce système de communication est pourvu d'une pluralité de dispositifs de surveillance qui transfèrent des informations, de dispositifs de collecte qui acquièrent les informations transférées par les dispositifs de surveillance, et d'un dispositif hôte. Le dispositif hôte conserve des informations de liste concernant des premiers identifiants de terminal utilisés dans une couche d'ordre inférieur en communication entre le dispositif hôte et les dispositifs de collecte, et des informations de liste concernant des seconds identifiants de terminal utilisés dans une couche d'ordre inférieur en communication entre les dispositifs de collecte et les dispositifs de surveillance. Différents seconds identifiants de terminal sont attribués de manière fixe aux dispositifs de surveillance, aux dispositifs de collecte et au dispositif hôte. Les dispositifs de surveillance, les dispositifs de collecte et le dispositif hôte transmettent et reçoivent chacun des paquets dans lesquels un deuxième identificateur de terminal est stocké comme adresse source de transmission et adresse de destination de transmission.
PCT/JP2019/015440 2018-07-25 2019-04-09 Système de communication, dispositif hôte, dispositif de collecte et procédé de communication WO2020021779A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2020532155A JP7279719B2 (ja) 2018-07-25 2019-04-09 通信システム、上位装置、収集装置および通信方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-139233 2018-07-25
JP2018139233 2018-07-25

Publications (1)

Publication Number Publication Date
WO2020021779A1 true WO2020021779A1 (fr) 2020-01-30

Family

ID=69180883

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/015440 WO2020021779A1 (fr) 2018-07-25 2019-04-09 Système de communication, dispositif hôte, dispositif de collecte et procédé de communication

Country Status (2)

Country Link
JP (1) JP7279719B2 (fr)
WO (1) WO2020021779A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016181785A (ja) * 2015-03-24 2016-10-13 住友電気工業株式会社 親装置、電力情報収集システムおよび通信制御方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016181785A (ja) * 2015-03-24 2016-10-13 住友電気工業株式会社 親装置、電力情報収集システムおよび通信制御方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KURIYAMA, HIROSHI ET AL.: "Evaluation of Mutually Complementary Communication Protocol for Sensor Networks", IPSJ SIG TECHNICAL REPORT, vol. 2011, no. 2, 15 August 2011 (2011-08-15), XP032160968 *

Also Published As

Publication number Publication date
JP7279719B2 (ja) 2023-05-23
JPWO2020021779A1 (ja) 2021-08-19

Similar Documents

Publication Publication Date Title
US8798678B2 (en) Systems and methods for controlling quality of service at picocells using agnostic platform
US7729326B2 (en) Wireless network system with wireless access ports
CN101803309B (zh) 在公共事业智能网格网络中进行路由的方法和系统
JP5507856B2 (ja) 無線通信システム
CN102984821B (zh) 工厂内安全监测无线传感器网络
JP7147897B2 (ja) 無線センサシステムおよび通信制御方法
JP2009302694A (ja) 無線通信ネットワークシステム
US9693204B2 (en) System and method for conveying information using broadcast frames
JP2000201441A (ja) 電力管理システム
CN102387521A (zh) 对无线传感器网络节点的状态监测方法及系统
US20160021668A1 (en) Data distribution system, distribution device, terminal device, and data distribution method
JP2004072198A (ja) 通信経路制御システム、通信経路制御方法及び基地局
CN101945495B (zh) 差频子网络通讯系统和方法
EP2704462B1 (fr) Dispositif sans fil pour la communication sans fil, en utilisant un parmi plusieurs modules sans fils, qui est adapté à l'état de la communication sans fils d'un site à surveiller, et système de réseau sans fil avec tels dispositifs sans fil
US20150018006A1 (en) Method for operating a field device, field device and server for a wide-area automation network
WO2020021779A1 (fr) Système de communication, dispositif hôte, dispositif de collecte et procédé de communication
KR20100032171A (ko) 무선센서 네트워크 시스템 및 그 동작 방법
JP6201256B2 (ja) 通信端末、および通信システム
US11194315B2 (en) Wireless communication apparatus that manages process in factory, and process management method
CN108200624B (zh) 基于lpwan的具有自动入网功能的混合型网络组网通讯方法
WO2020021803A1 (fr) Système de communication et dispositif de surveillance
JP6795130B1 (ja) 通信システム、通信装置および通信制御方法
JP6254840B2 (ja) 集約装置、配信方法、配信プログラム、及び、ネットワークシステム
WO2021005848A1 (fr) Système de communication, dispositif de communication, et procédé de commande de communication
KR20200078776A (ko) 복수 개의 이오나이저의 성능을 모니터링하는 이오나이저 관리시스템

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19842223

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2020532155

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19842223

Country of ref document: EP

Kind code of ref document: A1