WO2015087501A1 - 検針装置の管理装置 - Google Patents

検針装置の管理装置 Download PDF

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Publication number
WO2015087501A1
WO2015087501A1 PCT/JP2014/005871 JP2014005871W WO2015087501A1 WO 2015087501 A1 WO2015087501 A1 WO 2015087501A1 JP 2014005871 W JP2014005871 W JP 2014005871W WO 2015087501 A1 WO2015087501 A1 WO 2015087501A1
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WO
WIPO (PCT)
Prior art keywords
communication
meter
communication method
alternative
route
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Ceased
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PCT/JP2014/005871
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English (en)
French (fr)
Japanese (ja)
Inventor
貴之 佐々木
西尾　昭彦
光央 上村
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Publication of WO2015087501A1 publication Critical patent/WO2015087501A1/ja
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/10—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for switching-in of additional or auxiliary indicators or recorders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D4/00—Tariff metering apparatus
    • G01D4/002—Remote reading of utility meters
    • G01D4/004—Remote reading of utility meters to a fixed location
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/30—Smart metering, e.g. specially adapted for remote reading

Definitions

  • the present invention relates to at least one meter-reading device having a communication function.
  • the present invention also relates to a management device that manages at least one meter-reading device.
  • the present invention also relates to a communication method and program for a management apparatus.
  • the present invention also relates to a communication system including a plurality of meter-reading devices and a management device that manages the meter-reading devices.
  • a metering device for electric energy (so-called “smart meter”) having a communication function is being introduced (see Patent Documents 1 to 5).
  • the communication path between the meter-reading device and the electric power company is called “A route”.
  • the direct communication path between the meter-reading device and the home device is called “B route”.
  • a communication path between the meter-reading device and the in-home device, and a communication path via an external network such as the Internet is called a “C route”.
  • Home appliances are distribution boards or other power management devices.
  • the meter reading device communicates with an electric power company using power line communication (PLC) or wireless as a communication medium.
  • PLC power line communication
  • a management device Concentrator
  • the management device collects the power consumption of the house or dwelling unit provided with the meter-reading device from a plurality of meter-reading devices and sends it to the power company.
  • a communication system including a plurality of meter-reading devices and their management devices
  • the management device needs to perform routing.
  • each meter-reading device and management device have both power line communication and wireless communication functions, a communication system that realizes a new routing method capable of setting an alternative route having high communication reliability when a communication failure occurs It is desirable to provide
  • a management device for a meter reading device is a management device for managing a plurality of meter reading devices having a communication function, and is characterized by comprising the following configuration.
  • the meter-reading device has functions of power line communication and wireless communication.
  • the management device includes a power line communication circuit that communicates with a plurality of meter reading devices using a power line communication method in a multi-hop manner, a wireless communication circuit that communicates with a plurality of meter reading devices using a wireless communication method in a multi-hop manner, a power line communication circuit, and And a control circuit for controlling the wireless communication circuit.
  • the plurality of meter-reading devices and the management device constitute a multi-hop communication network that is connected to each other via a power line communication link and a wireless communication link.
  • the control circuit sets one of the power line communication method and the wireless communication method as the main communication method of the communication network, and sets the other as the alternative communication method of the communication network.
  • the control circuit sets a main route including one or a plurality of main communication method links from the management device to the destination meter-reading device among the plurality of meter-reading devices.
  • the control circuit sets at least one alternative route including one or more links from the management device to the destination meter-reading device.
  • the control circuit starts communication with the destination meter-reading apparatus using the main route. When the control circuit detects a failure in communication using the main route, the control circuit starts communication with the destination meter-reading device using the alternative route.
  • a meter-reading device is a meter-reading device having a communication function, and has the following configuration.
  • the meter-reading device uses a power line communication system to communicate with one or a plurality of other meter-reading devices and a plurality of communication devices including one management device in a multi-hop manner, and a plurality of communications using a wireless communication method.
  • a wireless communication circuit that performs multi-hop communication with the apparatus, and a control circuit that controls the power line communication circuit and the wireless communication circuit.
  • the plurality of communication devices constitute a multi-hop communication network connected to each other via a power line communication link and a wireless communication link.
  • One of the power line communication method and the wireless communication method is set as the main communication method of the communication network, and the other is set as the alternative communication method of the communication network.
  • the control circuit sets a main route including one or a plurality of main communication method links from the meter-reading device to the destination communication device among the plurality of communication devices.
  • the control circuit sets at least one alternative route including one or more links from the meter-reading device to the destination communication device.
  • the control circuit starts communication with the destination communication device using the main route. When detecting a failure in communication using the main route, the control circuit starts communication with the destination communication device using the alternative route.
  • a meter-reading device is a meter-reading device having a communication function, and has the following configuration.
  • the meter-reading device uses a power line communication system to communicate with one or a plurality of other meter-reading devices and a plurality of communication devices including one management device in a multi-hop manner, and a plurality of communications using a wireless communication method.
  • a wireless communication circuit that performs multi-hop communication with the apparatus, and a control circuit that controls the power line communication circuit and the wireless communication circuit.
  • the plurality of communication devices constitute a multi-hop communication network connected to each other via a power line communication link and a wireless communication link.
  • the control circuit includes a section from the meter reading device to the destination communication device when the meter reading device is included in the route from the source communication device of the plurality of communication devices to the destination communication device of the plurality of communication devices.
  • the control circuit sets a first alternative route including one or a plurality of main communication system links from the meter-reading device to the destination communication device.
  • the control circuit sets at least one second alternative route including one or more links from the meter-reading device to the destination communication device.
  • the control circuit starts communication with the destination communication device using the first alternative route.
  • the control circuit detects a failure in communication using the first alternative route, the control circuit starts communication with the destination communication device using the second alternative route.
  • a communication system includes a plurality of meter reading devices having functions of power line communication and wireless communication, and a management device according to an aspect of the present invention that manages the plurality of meter reading devices.
  • a communication method is a communication method for a management apparatus that manages a plurality of meter-reading apparatuses having a communication function, and is characterized in that the following configuration is provided.
  • the meter-reading device has functions of power line communication and wireless communication.
  • the management device includes a power line communication circuit that communicates with a plurality of meter reading devices using a power line communication method in a multi-hop manner, a wireless communication circuit that communicates with a plurality of meter reading devices using a wireless communication method in a multi-hop manner, a power line communication circuit, and And a control circuit for controlling the wireless communication circuit.
  • the plurality of meter-reading devices and the management device constitute a multi-hop communication network that is connected to each other via a power line communication link and a wireless communication link.
  • the communication method includes a step of setting one of the power line communication method and the wireless communication method as the main communication method of the communication network and the other as the alternative communication method of the communication network.
  • the communication method includes a step of setting a main route including a link of one or a plurality of main communication methods from the management device to a destination meter-reading device among the plurality of meter-reading devices.
  • the communication method includes the step of setting at least one alternative route including one or more links from the management device to the destination meter-reading device.
  • the communication method includes a step of starting communication with the destination meter-reading apparatus using the main route.
  • the communication method includes a step of starting communication with the destination meter-reading device using the alternative route when the failure of communication using the main route is detected.
  • a program according to another aspect of the present invention is a program for a management device that manages a plurality of meter-reading devices having a communication function, and has the following configuration.
  • the meter-reading device has functions of power line communication and wireless communication.
  • the management device includes a power line communication circuit that communicates with a plurality of meter reading devices using a power line communication method in a multi-hop manner, a wireless communication circuit that communicates with a plurality of meter reading devices using a wireless communication method in a multi-hop manner, a power line communication circuit, and And a control circuit for controlling the wireless communication circuit.
  • the plurality of meter-reading devices and the management device constitute a multi-hop communication network that is connected to each other via a power line communication link and a wireless communication link.
  • the program includes the following steps executed by the control circuit.
  • One of the power line communication method and the wireless communication method is set as the main communication method of the communication network, and the other is set as the alternative communication method of the communication network.
  • a main route including one or a plurality of main communication system links from the management device to the destination meter-reading device among the plurality of meter-reading devices is set.
  • At least one alternative route including one or more links from the management device to the destination meter-reading device is set. Communication with the destination meter-reading device is started using the main route. When a communication failure using the main route is detected, communication with the destination meter-reading device is started using the alternative route.
  • a meter reading device management device that realizes a novel routing method capable of setting an alternative route having high communication reliability when a communication failure occurs.
  • FIG. 1 is a schematic diagram showing a communication system according to a first embodiment of the present invention. It is a block diagram which shows the structure of the management apparatus 10 of FIG. It is a block diagram which shows the structure of the meter-reading apparatus 1 of FIG. 2 is a schematic diagram showing a main route (PLC) and an alternative route (RF) when the management device 10 transmits a packet to the meter-reading device 4 in the communication system of FIG. 2 is a schematic diagram showing a main route (PLC), an alternative route (PLC), and an alternative route (RF) when the management device 10 transmits a packet to the meter-reading device 4 in the communication system of FIG.
  • PLC main route
  • RF alternative route
  • FIG. 2 is a schematic diagram showing a main route (PLC) and alternative routes (PLC, RF) when the management device 10 transmits a packet to the meter-reading device 4 in the communication system of FIG. 2 is a schematic diagram showing a main route (PLC) and an alternative route (RF) when the meter-reading device 4 transmits a packet to the management device 10 in the communication system of FIG. 2 is a schematic diagram showing a main route (PLC) and an alternative route (RF) when the meter-reading device 1 transmits a packet to the meter-reading device 4 in the communication system of FIG.
  • FIG. 2 is a schematic diagram showing an alternative route (PLC) and an alternative route (RF) when the management device 10 transmits a packet to the meter-reading device 4 in the communication system of FIG.
  • FIG. 1 is a schematic diagram showing a communication system according to the first embodiment of the present invention.
  • the communication system of FIG. 1 includes a plurality of meter reading devices 1 to 4 that receive power supply from an electric power company (not shown), and a management device 10 that manages these meter reading devices 1 to 4.
  • Each of the meter-reading apparatuses 1 to 4 and the management apparatus 10 has functions of power line communication (PLC) and wireless communication (RF).
  • PLC power line communication
  • RF wireless communication
  • the meter-reading apparatuses 1 to 4 and the management apparatus 10 constitute a multi-hop communication network that is connected to each other via a power line communication link and a wireless communication link.
  • the link of the power line communication method and the link of the wireless communication method each have the link cost shown in FIG.
  • the management apparatus 10 collects in advance the link cost of each link included in the communication network using a notification signal that is transmitted periodically or irregularly within the communication network.
  • the management device 10 communicates with a power company server (not shown), and notifies the power company of information on the amount of power consumption measured by each meter-reading device.
  • the notification signal may be, for example, a Hello packet that includes adjacent link information for routing and is broadcast periodically for routing.
  • the notification signal may be any other packet (for example, a packet that is periodically transmitted to notify meter reading information) that is transmitted and received periodically or irregularly in each network. .
  • FIG. 2 is a block diagram showing the configuration of the management apparatus 10 of FIG.
  • the management device 10 includes a control circuit 11, a PLC circuit 12, and a wireless communication circuit 13.
  • the control circuit 11 communicates with the meter-reading apparatuses 1 to 4 using the PLC circuit 12 and the power line 20, and communicates with the meter-reading apparatuses 1 to 4 using the wireless communication circuit 13.
  • FIG. 3 is a block diagram showing a configuration of the meter-reading device 1 of FIG.
  • the meter-reading device 1 includes a power measuring device 31, a control circuit 32, a PLC circuit 33, and a wireless communication circuit 34.
  • the power meter 31 measures the amount of power consumption of a home device (not shown).
  • the PLC circuit 33 communicates with the other meter-reading apparatuses 2 to 4 and the management apparatus 10 under the control of the control circuit 32.
  • the wireless communication circuit 34 communicates with the other meter-reading apparatuses 2 to 4 and the management apparatus 10 under the control of the control circuit 32.
  • the control circuit 32 notifies the management device 10 of the measured power consumption using the PLC circuit 33 or the wireless communication circuit 34.
  • the other meter reading devices 2 to 4 are also configured in the same manner as the meter reading device 1.
  • FIGS. 2 and 3 show the PLC circuit (12, 33) and the wireless communication circuit (13, 34) as two separate modules, the PLC circuit and the wireless communication circuit are provided as a single module or chip. Also good. 3 shows a configuration in which the power measuring device 34 and the communication circuit (the PLC circuit 33 and the wireless communication circuit 34) are integrated, the power measuring device 34 and the communication circuit are provided as separate modules. Also good.
  • FIG. 4 is a schematic diagram showing a main route (PLC) and an alternative route (RF) when the management device 10 transmits a packet to the meter-reading device 4 in the communication system of FIG.
  • the management apparatus 10 acquires in advance information on links included in the communication network from the meter-reading apparatuses 1 to 4.
  • the control circuit 11 of the management apparatus 10 sets one of the power line communication method and the wireless communication method as the main communication method of the communication network, and sets the other as the alternative communication method of the communication network.
  • the control circuit 11 notifies the meter reading devices 1 to 4 of the set main communication method and alternative communication method.
  • the control circuit 11 sets a main route including one or more main communication method links from the management device 10 to the meter-reading device 4.
  • the control circuit 11 calculates the route cost of the route from the management device 10 to the meter-reading device 4 based on the link cost of the link of the main communication method included in the communication network, and selects the route having the minimum route cost (A2 + A6). Set as main route.
  • the control circuit 11 sets an alternative route including one or more links from the management device to the meter-reading device 4.
  • the control circuit 11 starts communication with the meter reading device 4 using the main route.
  • the meter-reading device that has detected the communication failure notifies the transmission source management device 10.
  • the control circuit 11 detects a failure in communication using the main route, the control circuit 11 starts communication with the meter-reading device 4 using the alternative route.
  • the control circuit 11 sets at least one of the following alternative routes.
  • An alternative route of an alternative communication method including one or a plurality of alternative communication method links from the management device 10 to the meter-reading device 4.
  • An alternative route of the main communication method including one or a plurality of main communication method links from the management device 10 to the meter-reading device 4.
  • An alternative route of a mixed communication system including one or a plurality of alternative communication system links and one or a plurality of main communication system links from the management device 10 to the meter-reading device 4.
  • each alternative route has a priority based on the route cost calculated from the link cost of one or a plurality of links included in the alternative route.
  • the control circuit 11 sets an alternative route for the alternative communication method.
  • the control circuit 11 calculates the route cost of the route from the management device 10 to the meter-reading device 4 based on the link cost of the link of the alternative communication method included in the communication network, and selects the route having the minimum route cost (B1 + B4 + B7). Set as an alternate route.
  • FIG. 5 is a schematic diagram showing a main route (PLC), an alternative route (PLC), and an alternative route (RF) when the management device 10 transmits a packet to the meter-reading device 4 in the communication system of FIG.
  • the control circuit 11 of the management apparatus 10 sets an alternative route for the main communication method.
  • the control circuit 11 sets a route having the lowest route cost next to the main route as an alternative route of the main communication method.
  • the control circuit 11 adds a predetermined bias to the link cost of the link of the main communication method included in the alternative route.
  • the control circuit 11 calculates the route cost ((A1 + X1) + (A5 + X5)) of the alternative route of the main communication method from the link cost to which the bias is added.
  • FIG. 6 is a schematic diagram showing a main route (PLC) and alternative routes (PLC, RF) when the management device 10 transmits a packet to the meter-reading device 4 in the communication system of FIG.
  • the control circuit 11 of the management apparatus 10 sets an alternative route for the mixed communication method.
  • the control circuit 11 adds a predetermined bias (for example, +1) to the link of the main communication method included in the network. Further, the control circuit 11 may add a predetermined negative bias (for example, ⁇ 1) to the link of the alternative communication method included in the network.
  • the control circuit 11 calculates the route cost of the route from the management device 10 to the meter-reading device 4 based on the link cost of the main communication method link and the link cost of the alternative communication method link included in the network.
  • the control circuit 11 sets a route having the minimum route cost ((B1-1) + (A5 + 1)) as a temporary alternative route. Thereby, when the control circuit 11 calculates the route cost of the alternative route of the mixed communication method, a predetermined bias is added to the link cost of the link of the main communication method included in the alternative route.
  • control circuit 11 of the management device 10 detects a failure in communication using the main route, the control circuit 11 communicates with the meter-reading device 4 using the route having the minimum route cost among one or a plurality of alternative routes. Start.
  • the alternative route becomes easier to include the link of the alternative communication method than the link of the main communication method.
  • the management device 10 of the meter reading device has the following configuration in the management device 10 that manages the plurality of meter reading devices 1 to 4 having a communication function.
  • Each of the meter reading devices 1 to 4 has functions of power line communication and wireless communication.
  • the management device 10 includes a PLC circuit 12 that performs multi-hop communication with a plurality of meter-reading devices 1 to 4 using a power line communication method, a wireless communication circuit 13 that performs multi-hop communication with a plurality of meter-reading devices 1 to 4 using a wireless communication method, And a control circuit 11 that controls the PLC circuit 12 and the wireless communication circuit 13.
  • the plurality of meter-reading apparatuses 1 to 4 and the management apparatus 10 constitute a multi-hop communication network that is connected to each other via a link of a power line communication method and a link of a wireless communication method.
  • the control circuit 11 sets one of the power line communication method and the wireless communication method as the main communication method of the communication network, and sets the other as the alternative communication method of the communication network.
  • the control circuit 11 sets a main route including one or a plurality of main communication method links from the management device 10 to the destination meter-reading device among the plurality of meter-reading devices 1 to 4.
  • the control circuit 11 sets at least one alternative route including one or more links from the management device 10 to the destination meter-reading device.
  • the control circuit 11 starts communication with the destination meter-reading apparatus using the main route. When the control circuit 11 detects a failure in communication using the main route, the control circuit 11 starts communication with the destination meter-reading device using the alternative route.
  • the control circuit 11 may set at least one of the following alternative routes.
  • An alternative route of an alternative communication method including one or a plurality of alternative communication method links from the management device 10 to the destination meter-reading device.
  • An alternative route of the main communication method including one or a plurality of main communication method links from the management device 10 to the destination meter-reading device.
  • An alternative route of a mixed communication system including one or a plurality of alternative communication system links and one or a plurality of main communication system links from the management apparatus 10 to the destination meter-reading apparatus.
  • each alternative route may have a priority based on the route cost calculated from the link cost of one or a plurality of links included in the alternative route.
  • the control circuit 11 may add a predetermined bias to the link cost of the link of the main communication method included in the alternative route.
  • control circuit 11 When the control circuit 11 detects a failure in communication using the main route over a predetermined number of times, the control circuit 11 may switch between the main communication method and the alternative communication method.
  • the communication system includes a plurality of meter reading devices 1 to 4 having functions of power line communication and wireless communication, and a management device 10 that manages the plurality of meter reading devices 1 to 4.
  • the communication method includes the following configuration in the communication method of the management apparatus 10 that manages a plurality of meter-reading apparatuses 1 to 4 having a communication function.
  • Each of the meter reading devices 1 to 4 has functions of power line communication and wireless communication.
  • the management device 10 includes a PLC circuit 12 that performs multi-hop communication with a plurality of meter-reading devices 1 to 4 using a power line communication method, a wireless communication circuit 13 that performs multi-hop communication with a plurality of meter-reading devices 1 to 4 using a wireless communication method, And a control circuit 11 that controls the PLC circuit 12 and the wireless communication circuit 13.
  • the plurality of meter-reading apparatuses 1 to 4 and the management apparatus 10 constitute a multi-hop communication network that is connected to each other via a link of a power line communication method and a link of a wireless communication method.
  • the communication method includes a step of setting one of the power line communication method and the wireless communication method as the main communication method of the communication network and the other as the alternative communication method of the communication network.
  • the communication method includes a step of setting a main route including one or a plurality of main communication method links from the management device 10 to the destination meter-reading device among the plurality of meter-reading devices 1 to 4.
  • the communication method includes setting at least one alternative route including one or more links from the management device 10 to the destination meter-reading device.
  • the communication method includes a step of starting communication with the destination meter-reading apparatus using the main route.
  • the communication method includes a step of starting communication with the destination meter-reading device using the alternative route when the failure of communication using the main route is detected.
  • a program according to one aspect of the present invention has the following configuration in the program of the management apparatus 10 that manages a plurality of meter-reading apparatuses 1 to 4 having a communication function.
  • Each of the meter reading devices 1 to 4 has functions of power line communication and wireless communication.
  • the management device 10 includes a PLC circuit 12 that performs multi-hop communication with a plurality of meter-reading devices 1 to 4 using a power line communication method, a wireless communication circuit 13 that performs multi-hop communication with a plurality of meter-reading devices 1 to 4 using a wireless communication method, And a control circuit 11 that controls the PLC circuit 12 and the wireless communication circuit 13.
  • the plurality of meter-reading apparatuses 1 to 4 and the management apparatus 10 constitute a multi-hop communication network that is connected to each other via a link of a power line communication method and a link of a wireless communication method.
  • the program includes the following steps executed by the control circuit 11.
  • One of the power line communication method and the wireless communication method is set as the main communication method of the communication network, and the other is set as the alternative communication method of the communication network.
  • a main route including one or a plurality of main communication system links from the management device 10 to the destination meter-reading device among the plurality of meter-reading devices 1 to 4 is set.
  • At least one alternative route including one or more links from the management device 10 to the destination meter-reading device is set. Communication with the destination meter-reading device is started using the main route. When a communication failure using the main route is detected, communication with the destination meter-reading device is started using the alternative route.
  • FIG. 7 is a schematic diagram showing a main route (PLC) and an alternative route (RF) when the meter-reading device 4 transmits a packet to the management device 10 in the communication system of FIG.
  • PLC main route
  • RF alternative route
  • the main route and the alternative route may be used as in FIGS.
  • Each of the meter reading devices 1 to 4 obtains in advance link information included in the communication network from other meter reading devices and management devices.
  • the control circuit 32 of the meter-reading device 4 sets a main route including one or a plurality of main communication method (PLC) links from the meter-reading device 4 to the management device 10.
  • PLC main route
  • RF alternative route
  • the control circuit 32 sets at least one alternative route (for example, an alternative route of an alternative communication method (RF)) including one or a plurality of links from the meter-reading device 4 to the management device 10.
  • the control circuit 32 starts communication with the management apparatus 10 using the main route.
  • the meter-reading device that detects the communication failure notifies the source meter-reading device 4.
  • the control circuit 32 detects a failure in communication using the main route, the control circuit 32 starts communication with the management apparatus 10 using the alternative route.
  • FIG. 8 is a schematic diagram showing a main route (PLC) and an alternative route (RF) when the meter-reading device 1 transmits a packet to the meter-reading device 4 in the communication system of FIG.
  • the control circuit 32 of the meter-reading device 1 sets a main route including one or a plurality of main communication method (PLC) links from the meter-reading device 4 to the meter-reading device 4.
  • the control circuit 32 sets at least one alternative route (for example, an alternative route of an alternative communication method (RF)) including one or a plurality of links from the meter-reading device 1 to the meter-reading device 4.
  • the control circuit 32 starts communication with the meter-reading apparatus 4 using the main route.
  • the meter-reading device When communication fails in any of the links included in the main route, the meter-reading device that detects the communication failure notifies the source meter-reading device 1.
  • the control circuit 32 detects a communication failure using the main route, the control circuit 32 starts communication with the meter-reading device 4 using the alternative route.
  • the control circuit 32 of the meter-reading apparatus 1 or 4 may set at least one of an alternative route of the alternative communication method, an alternative route of the main communication method, and an alternative route of the mixed communication method.
  • each alternative route has a priority based on a route cost calculated from the link cost of one or more links included in the alternative route.
  • the control circuit 32 adds a predetermined bias to the link cost of the link of the main communication method included in the alternative route.
  • an alternative route with high communication reliability can be selected according to the communication status when each communication method (media) is used, and the communication reliability of the entire communication system is improved. improves.
  • FIG. 9 is a schematic diagram showing an alternative route (PLC) and an alternative route (RF) when the management device 10 transmits a packet to the meter-reading device 4 in the communication system of FIG.
  • PLC alternative route
  • RF alternative route
  • FIG. 9 shows a section from the meter reading device 1 to the meter reading device 4 when the meter reading device 1 is included in the main route from the management device 10 (source communication device) to the meter reading device 4 (destination communication device). The case where communication failure is detected is shown.
  • the control circuit 32 of the meter-reading device 1 sets a first alternative route including one or a plurality of main communication system links from the meter-reading device 1 to the meter-reading device 4.
  • the control circuit 32 sets at least one second alternative route including one or more links from the meter-reading device 1 to the meter-reading device 4.
  • the control circuit 32 starts communication with the meter-reading apparatus 4 using the first alternative route.
  • the meter-reading device 1 that has detected the communication failure does not notify the transmission source management device 10.
  • the control circuit 32 detects a failure in communication using the first alternative route, the control circuit 32 starts communication with the meter-reading device 4 using the second alternative route.
  • the control circuit 32 of the meter-reading apparatus 1 may set at least one of an alternative route of the alternative communication method, an alternative route of the main communication method, and an alternative route of the mixed communication method as the second alternative route.
  • each second alternative route is based on the route cost calculated from the link cost of one or more links included in the second alternative route. Has priority.
  • the control circuit 32 adds a predetermined bias to the link cost of the main communication system link included in the second alternative route.
  • meter-reading device 9 is also used when the meter-reading device 4 transmits a packet to the management device 10 (FIG. 7), or when a meter-reading device 1 transmits a packet to another meter-reading device 4 (FIG. 8). Applicable.
  • an alternative route with high communication reliability can be selected according to the communication status when each communication method (media) is used, and the communication reliability of the entire communication system is improved.
  • the routing process can be speeded up by setting an alternative route by the meter-reading device 1 without notifying the source communication device.
  • the meter-reading device is the meter-reading device 1 to 4 having a communication function, and has the following configuration.
  • the meter reading device includes a PLC circuit 33, a wireless communication circuit 34, and a control circuit 32.
  • the PLC circuit 33 communicates with a plurality of communication devices including one or a plurality of other meter-reading devices and one management device 10 using a power line communication method in a multi-hop manner.
  • the wireless communication circuit 34 performs multi-hop communication with a plurality of communication devices using a wireless communication method.
  • the control circuit 32 controls the PLC circuit 33 and the wireless communication circuit 34.
  • the plurality of communication devices constitute a multi-hop communication network connected to each other via a power line communication link and a wireless communication link.
  • the control circuit 32 sets a main route including one or a plurality of main communication method links from the meter-reading device to a destination communication device among the plurality of communication devices.
  • the control circuit 32 sets at least one alternative route including one or more links from the meter-reading device to the destination communication device.
  • the control circuit 32 starts communication with the destination communication device using the main route.
  • the control circuit 32 detects a failure in communication using the main route, the control circuit 32 starts communication with the destination communication device using the alternative route.
  • the control circuit 32 may set at least one of the following alternative routes. (1) An alternative route of an alternative communication method including one or a plurality of alternative communication method links from the meter reading device to the destination communication device. (2) An alternative route of the main communication method including one or a plurality of main communication method links from the meter reading device to the destination communication device. (3) An alternative route of a mixed communication system including one or a plurality of alternative communication system links and one or a plurality of main communication system links from the meter reading device to the destination communication device.
  • each alternative route may have a priority based on the route cost calculated from the link cost of one or a plurality of links included in the alternative route.
  • the control circuit 32 may add a predetermined bias to the link cost of the link of the main communication method included in the alternative route.
  • the meter reading device is a meter reading device 1 to 4 having a communication function, and has the following configuration.
  • the meter reading device includes a PLC circuit 33, a wireless communication circuit 34, and a control circuit 32.
  • the PLC circuit 33 communicates with a plurality of communication devices including one or a plurality of other meter-reading devices and one management device 10 using a power line communication method in a multi-hop manner.
  • the wireless communication circuit 34 performs multi-hop communication with a plurality of communication devices using a wireless communication method.
  • the control circuit 32 controls the PLC circuit 33 and the wireless communication circuit 34.
  • the plurality of communication devices constitute a multi-hop communication network connected to each other via a power line communication link and a wireless communication link.
  • the control circuit 32 is configured such that when the meter-reading device is included in the route from the source communication device of the plurality of communication devices to the destination communication device of the plurality of communication devices, and from the meter-reading device to the destination communication device When communication failure is detected in the interval up to, the following operation is executed.
  • the control circuit 32 sets a first alternative route including one or a plurality of main communication method links from the meter reading device to the destination communication device.
  • the control circuit 32 sets at least one second alternative route including one or more links from the meter-reading device to the destination communication device.
  • the control circuit 32 starts communication with the destination communication device using the first alternative route.
  • the control circuit 32 detects a communication failure using the first alternative route
  • the control circuit 32 starts communication with the destination communication device using the second alternative route.
  • the control circuit 32 may set at least one of the following alternative routes as the second alternative route.
  • An alternative route of an alternative communication method including one or a plurality of alternative communication method links from the meter reading device to the destination communication device.
  • An alternative route of the main communication method including one or a plurality of main communication method links from the meter reading device to the destination communication device.
  • An alternative route of a mixed communication system including one or a plurality of alternative communication system links and one or a plurality of main communication system links from the meter reading device to the destination communication device.
  • each second alternative route is based on the route cost calculated from the link cost of one or more links included in the second alternative route. You may have priority.
  • the control circuit 32 may add a predetermined bias to the link cost of the link of the main communication method included in the second alternative route.
  • the communication system includes the meter-reading apparatuses 1 to 4 according to one aspect of the present invention and the management apparatus 10 according to one aspect of the present invention that manages a plurality of meter-reading apparatuses.
  • control circuit 11 of the management apparatus 10 detects a failure in communication using the main route of the main communication method over a predetermined number of times, the control circuit 11 determines the main communication method and the alternative communication method. You may take turns.
  • the communication system may include a plurality of existing meter-reading devices and a management device that performs the routing shown in FIGS.
  • the communication system may include a plurality of meter-reading devices that perform routing in FIGS. 7 and 8 and a management device that performs routing in FIGS. 4 to 6.
  • the communication system may include a plurality of meter-reading devices and management devices that perform the routing of FIGS.
  • 4 to 9 may be implemented as hardware of the meter-reading apparatuses 1 to 4 and the management apparatus 10, or may be implemented as a program executed by their control circuit. Further, such a program may be recorded on a recording medium and distributed or distributed.
  • the meter reading device is not limited to a metering device for electric energy, but is a gas, water, or other meter reading device that can operate in a plurality of communication methods including power line communication and wireless communication. May be.
  • a gas, water, or other meter reading device that can operate in a plurality of communication methods including power line communication and wireless communication. May be.
  • Existing meter-reading devices that measure other than the amount of electric power often operate on batteries, but by configuring the meter-reading device to perform power line communication, power can also be supplied from the power line.
  • ... Meter reading device 10 ... Management device, 11 ... control circuit, 12 ... PLC circuit, 13: Wireless communication circuit, 20 ... power line, 31 ... Power meter, 32. Control circuit, 33 ... PLC circuit, 34: Wireless communication circuit.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Selective Calling Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/JP2014/005871 2013-12-09 2014-11-21 検針装置の管理装置 Ceased WO2015087501A1 (ja)

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JP2016036077A (ja) * 2014-08-01 2016-03-17 中国電力株式会社 集約装置及び検針データ集約システム

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US10057388B2 (en) * 2015-07-27 2018-08-21 The Boeing Company System and method for selecting a communication network in a sensor network
JP7051230B2 (ja) * 2018-07-11 2022-04-11 大崎電気工業株式会社 電力線通信システム

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JP2011250301A (ja) * 2010-05-28 2011-12-08 Panasonic Electric Works Co Ltd 遠隔検針システム
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JP2013187849A (ja) * 2012-03-09 2013-09-19 Panasonic Corp マルチホップ通信システム、子機

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