WO2016152307A1 - Dispositif de communications, procédé de communications et programme - Google Patents

Dispositif de communications, procédé de communications et programme Download PDF

Info

Publication number
WO2016152307A1
WO2016152307A1 PCT/JP2016/054157 JP2016054157W WO2016152307A1 WO 2016152307 A1 WO2016152307 A1 WO 2016152307A1 JP 2016054157 W JP2016054157 W JP 2016054157W WO 2016152307 A1 WO2016152307 A1 WO 2016152307A1
Authority
WO
WIPO (PCT)
Prior art keywords
reconnection request
meter reading
reading value
notification period
communication
Prior art date
Application number
PCT/JP2016/054157
Other languages
English (en)
Japanese (ja)
Inventor
猪飼　一仁
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP2017507589A priority Critical patent/JP6648754B2/ja
Publication of WO2016152307A1 publication Critical patent/WO2016152307A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H04W4/04—

Definitions

  • the present invention relates to a technique for controlling a reconnection request of a communication device that transmits a meter reading value.
  • Patent Document 1 discloses a technique of measuring power amount data used by home appliances at a predetermined interval using a smart meter and transmitting the data to an electric power company via a network such as an electric power company.
  • An object of the present invention is to provide a technique for suppressing the occurrence of congestion when a communication device is reconnected.
  • a communication device that transmits a meter reading value, Determining means for determining whether or not a predetermined condition regarding transmission of the reconnection request is satisfied; Reconnection request means for transmitting the reconnection request after a meter reading value notification period repeated at intervals according to the determination by the determination means; A communication device is provided.
  • the computer that sends the meter reading value Determine whether or not a predetermined condition regarding transmission of a reconnection request is satisfied, In response to the determination, the reconnection request is transmitted after a meter reading value notification period repeated at an interval has elapsed.
  • a communication method is provided.
  • the computer that sends the meter reading value Determining means for determining whether or not a predetermined condition regarding transmission of the reconnection request is satisfied; Reconnection request means for transmitting the reconnection request after a meter reading value notification period repeated at intervals according to the determination by the determination means; A program for functioning as a server is provided.
  • FIG. 1 is a diagram illustrating a configuration example of a communication system 1 according to the present invention.
  • the communication system 1 includes a plurality of communication devices 10, a base station 20 provided for each group including the plurality of communication devices 10, and a management server 30.
  • the configuration of the communication system 1 is not limited to the example of FIG.
  • the communication device 10 is a device including a meter reading value transmission unit (not shown) that transmits a value (meter reading value) obtained by metering, for example, electricity, gas, or water usage.
  • the communication device 10 may be a device (a so-called smart meter) having a function of measuring the amount of electricity, gas, or water used and transmitting it to the outside, or the amount of electricity, gas, or water used. Or a device that is connected to a device that reads a meter, etc., and that has a function of acquiring a meter reading value from the device and transmitting it to the outside.
  • the communication device 10 transmits the meter reading value during a period of notifying the meter reading value to the management server 30 (meter reading value notification period).
  • the communication device 10 uses the so-called A route to send the meter reading value to the outside. Can be sent.
  • the communication method of the A route is not particularly limited, but a mobile phone communication system such as 3G (3rd generation) or LTE (Long term evolution) can be used.
  • the communication device 10 is a home gateway such as HEMS (Home Energy Management System)
  • the communication device 10 is connected to a device such as a meter meter (smart meter) for measuring the amount of electricity, gas, or water usage.
  • the communication device 10 that is a home gateway such as HEMS can acquire a meter reading value from a meter reading device using a so-called B route, and can transmit the acquired meter reading value to an external device.
  • This route through which the HEMS communicates with an external device can also be referred to as a C route.
  • the communication device 10 is a so-called smart meter and the so-called A route is used for transmission of the meter reading value is illustrated.
  • the meter reading value notification period is a period for transmitting the meter reading value from the communication device 10 to the management server 30, and is repeated at intervals.
  • the meter reading value notification period is repeated from 0 minutes to 10 minutes every hour and from 30 minutes to 10 minutes every hour.
  • this is merely an example, and the meter reading value notification period is not limited to this example.
  • the meter reading value notification period may be common to all the communication devices 10 or may be different for at least some of the communication devices 10. However, since the meter reading value is related to the billing fee, it is desirable that the meter reading value be collected under the conditions common to individual consumers. Therefore, it is desirable that the meter reading value notification period is common to all the communication devices 10. However, exceptionally, a different meter reading value notification period may be set for each base station based on the number of communication devices 10 under the control of the base station. Specifically, the meter reading value notification period of the communication device 10 may be set so that the meter reading value notification period becomes longer as the number of communication devices 10 under the control of the base station increases.
  • the management server 30 located on the upstream side monitors the communication state of each base station, and notifies the meter reading value of each communication device 10 under the base station according to the communication state (degree of communication congestion) of each base station.
  • the period may be managed so as to be dynamically changeable.
  • the case where it is common about all the communication apparatuses 10 is illustrated for convenience of explanation.
  • the base station 20 has a plurality of communication devices 10 under its control.
  • the communication device 10 performs a connection establishment process with the base station 20 to which the communication device 10 belongs, and when the connection is established, data can be exchanged via the base station 20.
  • the meter reading transmission unit of the communication device 10 uses information unique to each communication device 10 (for example, a manufacturing number, a MAC (Media Access Control) address, or other setting values) to determine the communication timing of the communication device 10.
  • a manufacturing number for example, a manufacturing number, a MAC (Media Access Control) address, or other setting values
  • the management server 30 is a server that stores and manages the meter reading value of the communication device 10 in the communication system 1 transmitted via the base station 20 in a storage unit (not shown).
  • the management server 30 includes information for identifying the communication device 10 registered as a management target in a storage unit (not shown), and has a function of performing terminal authentication processing of each communication device 10 using the information.
  • Each communication device 10 may perform this terminal authentication process before starting communication with the management server 30, and may transmit a meter reading value to the management server 30 by being authenticated as a management target of the management server 30. It becomes possible.
  • the communication device 10 is connected to the base station 20 or the management server 30.
  • the reconnection request is an execution request for processing necessary to resume communication with devices such as the base station 20 and the management server 30 located on the upstream side with the direction in which the meter reading value is transmitted as the upstream side.
  • This reconnection request includes an execution request for at least one of communication establishment processing with the base station 20 and terminal authentication processing with the management server 30.
  • a reconnection request including an execution request for both the communication establishment process with the base station 20 and the terminal authentication process with the management server 30 may be transmitted, or the base station before the reconnection request
  • a reconnection request including a request for executing a terminal authentication process with the management server 30 may be transmitted in a state in which a connection establishment process with the management station 30 is established and a connection with the base station 20 is established.
  • the reconnection request is transmitted after the connection between the base station 20 and the management server 30 is disconnected due to some abnormality. As will be described in detail later, this reconnection request may cause congestion in some cases. According to the present invention, congestion caused by this reconnection request can be suppressed.
  • FIG. 2 is a diagram conceptually showing the processing configuration of the communication apparatus 10 in the first embodiment.
  • the communication device 10 includes a determination unit 110, a reconnection request unit 120, and a time management unit 130.
  • the time management unit 130 manages the time in the communication device 10.
  • the time management unit 130 is configured to be able to adjust a time lag by synchronizing with a time server (not shown) at a predetermined timing (for example, once a day).
  • the time management unit 130 includes a standby power source such as a capacitor (not shown), and is configured to be able to be driven even when power is not supplied to the communication device 10.
  • the determination unit 110 determines whether it is necessary to transmit a reconnection request.
  • a reconnection request is required, for example, when the communication device 10 is restarted due to an internal error or the like, or when it is necessary in the range of each communication device 10, and after the supply of power is interrupted by a power failure, What is necessary in the range of a plurality of communication devices 10 such as when each communication device 10 is restarted due to a power failure recovery, or when a communication network failure is recovered after disconnection due to a communication network failure or the like is there.
  • the determination unit 110 further determines whether or not a predetermined condition regarding transmission of the reconnection request is satisfied when it is necessary to transmit the reconnection request.
  • the predetermined condition is a condition that is estimated that reconnection requests are transmitted from a large number of communication devices 10 at substantially the same timing. That is, when the reconnection request is transmitted, the determination unit 110 determines whether or not the reconnection request can be transmitted from the multiple communication devices 10 at substantially the same timing.
  • Examples of the predetermined condition determined by the determination unit 110 include, for example, whether the reconnection request is a reconnection request based on recovery from a power failure or recovery from a network failure.
  • the communication device 10 stops operating due to the occurrence of a power failure and then restarts due to recovery from the power failure, the information used until that time (such as the encryption key used for communication) will be revoked. In order to resume the process, it is necessary to execute a reconnection process. And it is highly likely that the other communication devices 10 are in the same state at the time of a power failure, and many reconnection requests can be transmitted when the power failure is restored. Similarly, when the connection is cut off due to a network failure, the communication device 10 also invalidates the information used for the communication so far.
  • the determination unit 110 determines whether or not the reconnection request to be transmitted is a reconnection request based on at least one of recovery from a power failure and recovery from a network failure.
  • the determination unit 110 has a configuration as shown in FIG. 3, for example.
  • FIG. 3 is a diagram illustrating a detailed configuration of the determination unit 110.
  • the determination unit 110 includes a power failure determination unit 112 and a network failure determination unit 114.
  • the power failure determination unit 112 monitors a power supply state from a commercial system (not shown) of the communication device 10 and detects the occurrence and recovery of a power failure depending on the presence or absence of power supplied from the commercial system.
  • the network failure determination unit 114 monitors the strength of the radio wave from the base station 20, whether or not the strength of the radio wave is equal to or lower than the strength determined as the network failure, and the radio wave strength is recovered from the network failure. The occurrence and recovery of network faults are detected according to whether or not the strength is determined to be greater than or equal to.
  • the determination unit 110 includes at least one of the power failure determination unit 112 and the network failure determination unit 114, and can detect the occurrence and recovery of at least one of the power failure and the network failure. It may be configured.
  • a network failure may occur on the management server 30 side located in a layer higher than the base station 20.
  • a network failure such as a down of the management server 30 or a trouble in the communication network between the base station 20 and the management server 30 may occur.
  • the determination unit 110 can detect a network failure such as the management server 30 located in a layer higher than the base station 20 as follows, for example. For example, in the authentication between the communication device 10 and the management server 30, when the re-authentication process is executed regularly (for example, once every 12 hours), the determination unit 110 is periodically executed. When it is detected that the re-authentication process from the upper layer apparatus is not executed, it can be determined that a network failure has occurred due to an upper layer trouble or the like.
  • a notification indicating that fact is transmitted to a device in the lower layer when an abnormality occurs in a higher system such as the management server 30, a notification indicating that fact is transmitted to a device in the lower layer, and the determination unit 110 responds to the reception of the notification. It can also be determined that a network failure has occurred due to a trouble in an upper layer or the like.
  • the determination unit 110 may determine whether or not to transmit a reconnection request depending on whether or not the abnormality in the radio field intensity has continued for a length that causes a timeout. Specifically, the determination unit 110 detects each detection timing (first timing and second timing) from the time management unit 130 in response to the network failure determination unit 114 detecting occurrence of a network failure and recovery from the network failure. Timing). And the determination part 110 acquires the duration of a network failure based on two acquired detection timings.
  • the determination unit 110 determines whether or not to transmit a reconnection request according to the acquired duration of the network failure (for example, whether or not it is equal to or longer than the time until timeout).
  • the length of time for determining whether or not to transmit the reconnection request is preset in the determination unit 110, for example.
  • the reconnection request unit 120 basically transmits a reconnection request when reconnection processing becomes necessary, but reconnects after the meter reading value notification period elapses according to the determination by the determination unit 110 described above. Send a request. In other words, when it is determined that a large number of reconnection requests can be transmitted, the reconnection request unit 120 transmits the reconnection request after the meter reading value notification period has elapsed.
  • the reconnection request unit 120 acquires time information indicating the current time from the time management unit 130, and determines whether or not the current time is within the meter reading value notification period from the acquired time information.
  • the meter reading value notification period is a period for transmitting the meter reading value from the communication device 10 toward the management server 30, and is repeated at intervals.
  • the meter reading value notification period is held in advance in a storage unit (not shown) of the communication device 10, for example, and the reconnection request unit 120 receives the time information acquired from the time management unit 130 and the meter reading value held in the storage unit. By comparing with the notification period, it can be determined whether or not the current time is within the meter reading value notification period.
  • the reason why the reconnection request unit 120 operates in this way is to suppress the occurrence of congestion.
  • information is exchanged between the communication apparatus 10 and the base station 20 or the management server 30, so that each communication apparatus 10 has a meter reading value.
  • the amount of communication increases compared to the case where the meter reading value is transmitted during the notification period.
  • a one-way (one-way) communication protocol such as UDP (User Datagram Protocol) is preferably used.
  • an ACK acknowledgenowledgment confirmation
  • the communication device 10 makes a reconnection request to the base station 20 (management server 30), compared to transmission of a meter reading value during a detection value notification period, such as transmission of a process execution request and reply to the request. A lot of information is communicated.
  • the reconnection request unit 120 can avoid the occurrence of such a problem by transmitting a reconnection request while avoiding the meter reading value notification period.
  • the reconnection request unit 120 is preferably configured to distribute the transmission timing of the reconnection request. For example, when the reconnection request unit 120 transmits a reconnection request after waiting for the detection value notification period to elapse, information unique to each communication device 10 (for example, a manufacturing number, a MAC address, or other setting values) is transmitted. Used to set the timing for transmitting the reconnection request after the meter reading value notification period elapses.
  • the reconnection request unit 120 determines the serial number of the communication device 10 from the end time of the previous meter reading value notification period to the start time of the next meter reading value notification period (for example, in seconds). ) Can be calculated as the standby time of each communication device 10 after the meter reading value notification period has elapsed. Then, the reconnection request unit 120 determines the end point of the meter reading value notification period from the time information managed by the time management unit 130, and waits until the standby time calculated for each communication device 10 elapses from the end point. After that, send a reconnection request. In this case, for example, a result as shown in FIG. 4 can be obtained. FIG.
  • FIG. 4 is a diagram illustrating a simulation result of communication traffic when the timing at which the reconnection request unit 120 transmits the reconnection request is distributed.
  • the vertical axis in FIG. 4 indicates the number of communication devices 10 that transmit a reconnection request, and the horizontal axis in FIG. 4 indicates the period from the start time of a certain meter reading value notification period to the start time of the next meter reading value notification period (this figure). Shows the elapsed time of 30 minutes).
  • FIG. 4 shows an example in which the meter reading value notification period of “10 minutes every 30 minutes” is set in the communication device 10, and the communication device 10 transmits the meter reading value to the management server 30 during this meter reading value notification period. ing.
  • the period during which the communication device 10 requests reconnection is basically 20 minutes obtained by subtracting 10 minutes of the meter reading value notification period from the time interval of 30 minutes.
  • the communication device 10 such as a smart meter transmits the meter reading value to the management server 30 between 15:00 and 15:10.
  • the communication device 10 transmits a reconnection request between 15:10 and 15:30 when it is necessary to transmit a reconnection request for some reason and the above-described predetermined condition is satisfied.
  • the ratio between the length of the meter reading value notification period at 30 minutes (10 minutes in the example of FIG. 4) and the length of the period for requesting reconnection (20 minutes in the example of FIG. 4) is the communication under the control of the base station.
  • a different value may be set for each base station based on the number of devices 10.
  • the meter reading value notification period of the communication device 10 may be set so that the meter reading value notification period becomes longer as the number of communication devices 10 under the control of the base station increases.
  • the management server 30 located on the upstream side monitors the communication state of each base station, and notifies the meter reading value of each communication device 10 under the base station according to the communication state (degree of communication congestion) of each base station.
  • the period may be managed so as to be dynamically changeable.
  • the communication device 10 sets 30 minutes, which is the interval for notifying the meter reading values. It is not preferable to change every time, and the possibility that the interval is changed is low. In this case, the period during which the reconnection request is made within 30 minutes becomes shorter as the meter reading value notification period becomes longer. However, if the reconnection request period is too short, congestion due to the reconnection request is likely to occur. Therefore, the upper limit of the detection value notification period is predetermined, and the detection value notification period is within the upper limit range. It is desirable to be configured to fit within.
  • FIG. 5 is a diagram conceptually illustrating the hardware configuration of the communication apparatus 10.
  • the communication device 10 includes a CPU (Central Processing Unit) 101, a memory 102, a storage 103, an input / output interface (I / F) 104, a communication module 105, a clock module 106, a standby power supply 107, and the like.
  • the CPU 101, the memory 102, the storage 103, the input / output I / F 104, the communication module 105, and the clock module 106 are connected by a data transmission path for transmitting / receiving data to / from each other.
  • the standby power supply 107 is connected to the clock module 106 via a power supply wiring.
  • the hardware configuration of the communication device 10 is not limited to the configuration shown in FIG.
  • the memory 102 is a memory such as a RAM (Random Access Memory) or a ROM (Read Only Memory).
  • the storage 103 is a storage device such as a hard disk, an SSD (Solid State Drive), or a memory card.
  • the storage 103 stores program modules for realizing the functions of the processing unit of the communication apparatus 10 including the determination unit 110 and the reconnection request unit 120.
  • each function including the determination unit 110 and the reconnection request unit 120 of the communication device 10 is realized.
  • the CPU 101 may execute these modules after reading them onto the memory 102, or may execute them without reading them onto the memory 102.
  • the input / output I / F 104 is connected to a display device or input device (not shown).
  • the display device is a device that displays a screen corresponding to drawing data processed by a CPU 101 or a GPU (Graphics Processing Unit) (not shown) such as an LCD (Liquid Crystal Display) or CRT (Cathode Ray Tube) display. It is.
  • the input device is a device that receives an input by a user operation, and is realized as, for example, a keyboard, a mouse, a touch sensor, or the like.
  • the display device and the input device may be integrated and realized as a touch panel.
  • the communication module 105 is used for transmitting / receiving data to / from an external device or the like. There are various methods for connecting the communication device 10 and an external device via the communication module 105. For example, the communication module 105 communicates with an external device using a specific low-power radio system using a band such as a 920 MHz band, 3G, LTE, or the like. Further, the communication module 105 may be configured to be able to communicate with an external device by wire.
  • the clock module 106 includes a vibrator and a real-time clock IC (Integrated Circuit) and manages the time in the communication device 10.
  • the clock module 106 corresponds to the time management unit 130 described above.
  • the clock module 106 is configured to be connected to a time server via the communication module 105 at a predetermined timing (for example, once a day) and to synchronize the time.
  • the standby power supply 107 is a chargeable / dischargeable power supply such as an electric double layer capacitor or a lithium ion secondary battery.
  • the standby power supply 107 charges power via a power wiring (not shown) when power from the commercial system is supplied to the communication device 10, and stores the stored power when power supply to the communication device 10 stops.
  • the clock module 106 is discharged.
  • the standby power supply 107 may be a single-use primary battery capable of only a discharging operation. Thereby, the clock module 106 can continue time management using the power of the standby power supply 107 even in the event of a power failure.
  • FIG. 6 is a flowchart illustrating a processing flow of the communication device 10 according to the first embodiment.
  • the determination unit 110 monitors the power supply state from the commercial system using the power failure determination unit 112 (S101), and monitors the radio field intensity of the base station 20 existing in the communicable range using the network failure determination unit 114. (S102). Then, the determination unit 110 determines whether a power failure or network failure has occurred based on the monitoring statuses of S101 and S102 (S103). When a power failure or network failure has not occurred (S103: NO), the determination unit 110 continues monitoring the power supply state from the commercial system and the radio field intensity of the base station 20. When a power failure or network failure occurs (S103: YES), the determination unit 110 determines whether or not the power failure has been recovered or whether or not the network failure has been recovered (S104).
  • the determination unit 110 detects, for example, that the power supply from the commercial system has been resumed, or that the radio wave intensity from the base station 20 existing in the communicable range has exceeded a communicable value. Determine recovery from network and network failure. Whether or not a power failure has occurred is determined depending on whether or not the power supply is interrupted. When recovering from a power failure or network failure (S104: YES), the determination unit 110 notifies the reconnection request unit 120 of information indicating that recovery from the power failure or network failure has occurred.
  • the reconnection request unit 120 acquires the current time from the time management unit 130 in response to the notification from the determination unit 110 (S105), and determines whether the current time is within the meter reading value notification period (S106).
  • the reconnection request unit 120 can determine whether or not the current time is within the meter reading value notification period by comparing information indicating the meter reading value notification period stored in a storage unit (not shown) with the current time.
  • the reconnection request unit 120 waits without transmitting a reconnection request until the meter reading value notification period elapses (S107).
  • the reconnection request unit 120 can determine whether or not the meter reading value notification period has elapsed, for example, based on whether or not the time managed by the time management unit 130 has exceeded the end point of the meter reading value notification period. On the other hand, when the current time is not within the meter reading value notification period (S106: NO), the process of S107 is not executed.
  • the reconnection request unit 120 calculates a standby time using information unique to each communication device 10 (S108). For example, the reconnection request unit 120 divides the manufacturing number of itself by the time (for example, in seconds) from the end of the current meter reading value notification period to the start of the next meter reading value notification period. Is calculated as a waiting time. If the current time is after the meter reading value notification period has elapsed, the reconnection request unit 120 displays its own serial number, etc., as the time from the current time to the start of the next meter reading value notification period (for example, in seconds). The remainder value at the time of division is calculated as the standby time.
  • the reconnection request unit 120 waits without transmitting a reconnection request until the standby time calculated in S108 elapses (S109: NO). Then, after the standby time calculated in S108 has elapsed (S109: YES), a reconnection request is transmitted (S110). After transmitting the reconnection request, the processing from S101 described above is repeated.
  • a reconnection request is transmitted from another communication device 10 (for example, when recovering from a power failure or when recovering from a network failure). If determined, the reconnection request is transmitted after the meter reading value notification period has elapsed. In this way, by removing the transmission timing of reconnection requests by a large number of communication devices 10 from the transmission timing of meter reading values from other communication devices 10 that are operating normally, the transmission of reconnection requests and the reading of meter reading values are performed. It is possible to prevent congestion due to transmission.
  • the transmission timing is adjusted using information unique to each communication device 10.
  • the reconnection request may end in failure.
  • the reconnection request unit 120 tries to retransmit the reconnection request.
  • the bandwidth is squeezed. Therefore, the reconnection request unit 120 may transmit a reconnection request during the next meter reading value notification period when the reconnection request fails a predetermined number of times after the meter reading value notification period has elapsed. This predetermined number of times is set to an appropriate value according to various conditions such as the number of communication devices 10 under the base station 20, and is set in the reconnection request unit 120, for example.
  • FIG. 7 is a diagram conceptually showing the processing configuration of the communication apparatus 10 in the second embodiment.
  • the communication device 10 according to the second embodiment includes a determination unit 110 and a reconnection request unit 120.
  • the determination unit 110 and the reconnection request unit 120 of the present embodiment are the same as in the first embodiment.
  • the determination unit 110 and the reconnection request unit 120 according to the present embodiment include program modules that realize the functions of the determination unit 110 and the reconnection request unit 120 that are stored in the storage 103. It is realized by executing.
  • FIG. 8 is a flowchart illustrating a processing flow of the communication device 10 according to the second embodiment.
  • the determination unit 110 determines whether or not a reconnection request needs to be transmitted (S201).
  • the determination unit 110 detects whether or not the connection with the upstream device has been disconnected for some reason, and determines whether or not a reconnection request needs to be transmitted.
  • the determination unit 110 determines whether or not a predetermined condition that can be predicted when a reconnection request is transmitted from many other communication devices 10 is satisfied. (S202).
  • the reconnection request unit 120 acquires the current time from a time server or the like, and determines whether the current time is within the detection value notification period (S203).
  • the reconnection request unit 120 waits until the detection value notification period elapses (S204), and then transmits a reconnection request (S205). On the other hand, if the current time is outside the detection value notification period (S203: NO), the reconnection request unit 120 transmits a reconnection request without waiting (S205).
  • the reconnection request is transmitted while avoiding the period during which the meter reading value is transmitted.
  • a communication device that transmits a meter reading value, Determining means for determining whether or not a predetermined condition regarding transmission of the reconnection request is satisfied; Reconnection request means for transmitting the reconnection request after a meter reading value notification period repeated at intervals according to the determination by the determination means;
  • a communication device comprising: 2.
  • the determination means determines whether the reconnection request is a reconnection request based on at least one of recovery from a power failure or recovery from a network failure,
  • the reconnection request means includes If the determination means determines that the reconnection request is a reconnection request based on at least one of recovery from the power failure or recovery from a network failure, the reconnection request is determined after the meter reading value notification period has elapsed.
  • Send 1.
  • the reconnection request means sets a timing for transmitting the reconnection request after the meter reading value notification period elapses based on information unique to the communication device. 1. Or 2.
  • the communication apparatus as described in. 4).
  • the determination means monitors the power supply state from the commercial system and detects the occurrence of a power failure based on the presence or absence of power supplied from the commercial system. 2.
  • the communication apparatus as described in. 5.
  • the determination means monitors the radio field intensity from the base station and detects a network failure based on whether the radio field intensity has become a predetermined value or less. 2.
  • the communication apparatus as described in. 6).
  • the reconnection request unit acquires the current time according to the notification of the determination unit, and determines whether or not the current time is within a meter reading value notification period. 1. To 5.
  • the communication device according to any one of the above. 7).
  • the reconnection request means waits without transmitting a reconnection request until the meter reading value notification period elapses, If the current time is not within the meter reading notification period, send a reconnection request. 6).
  • the communication apparatus as described in. 8).
  • the determination means includes Detect the first timing when the network failure occurs and the second timing recovered from the network failure, From the first timing and the second timing, obtain the duration of the network failure, Determining whether to send the reconnection request according to the duration of the network failure; 1. To 7.
  • the communication device according to any one of the above. 9.
  • the reconnection request means transmits the reconnection request in the next meter reading value notification period when the reconnection request has failed a predetermined number of times after the meter reading value notification period has elapsed. 1.
  • the meter reading value notification period is set based on the number of communication devices existing under the base station, 1.
  • the communication apparatus as described in.
  • the length of the meter reading value notification period and the ratio of the length of the period for performing the reconnection request are set based on the number of communication devices connected to the base station or the communication state of each base station.
  • the communication apparatus as described in. 13 The reconnection request includes an execution request of at least one of a communication establishment process with an apparatus located on the upstream side or an authentication process of the communication apparatus, with the direction in which the meter reading value is transmitted upstream. 1.
  • the communication device according to any one of the above. 14
  • the computer that sends the meter reading value Determine whether or not a predetermined condition regarding transmission of a reconnection request is satisfied, In response to the determination, the reconnection request is transmitted after a meter reading value notification period repeated at an interval has elapsed.
  • a communication method. 15. The computer is Determining whether the reconnection request is a reconnection request based on at least one of recovery from a power failure or network failure; If the reconnection request is determined to be a reconnection request based on at least one of recovery from the power failure or network failure, the reconnection request is transmitted after the meter reading value notification period has elapsed. Including. The communication method described in 1. 16. The computer is Based on the information unique to the computer that transmits the meter reading value, the timing for transmitting the reconnection request after the meter reading value notification period has elapsed is set. Including. Or 15. The communication method described in 1. 17.
  • the computer is Monitors the power supply status from the commercial system and detects the occurrence of a power outage based on the presence or absence of power supplied from the commercial system. 15. Including The communication method described in 1. 18.
  • the computer is Monitoring the radio field intensity from the base station and detecting a network failure based on whether or not the radio field intensity is below a predetermined value; 15.
  • the communication method described in 1. 19 The computer is In response to the determination, obtain the current time, determine whether the current time is within the meter reading value notification period, Including. To 18.
  • the communication method according to any one of the above. 20.
  • the computer is When the current time is within the meter reading value notification period, it waits without sending a reconnection request until the meter reading value notification period elapses, If the current time is not within the meter reading notification period, send a reconnection request. Including.
  • the computer is Detect the first timing when the network failure occurs and the second timing recovered from the network failure, From the first timing and the second timing, obtain the duration of the network failure, Determining whether to send the reconnection request according to the duration of the network failure; Including.
  • the communication method according to any one of the above. 22.
  • the computer is When the transmission of the reconnection request has failed a predetermined number of times after the meter reading value notification period has elapsed, the reconnection request is transmitted during the next meter reading value notification period. Including. To 21. The communication method according to any one of the above. 23. The meter reading value notification period is set based on the number of computers that transmit the meter reading value existing under the control of a base station. Including. To 22. The communication method according to any one of the above. 24. The longer the meter reading value notification period, the shorter the period for performing the reconnection request after the meter reading value notification period elapses. 23. The communication method described in 1. 25.
  • the ratio between the length of the meter reading value notification period and the length of the period for performing the reconnection request is set based on the number of computers that transmit the meter reading value connected to the base station or the communication state of each base station.
  • the 24. The communication method described in 1. 26.
  • the reconnection request is an execution request of at least one of communication establishment processing with a device located on the upstream side or authentication processing of a computer that transmits the meter reading value, with the direction in which the meter reading value is transmitted as the upstream side including, Including.
  • the communication method according to any one of the above. 27.
  • the computer Means for determining whether the reconnection request is a reconnection request based on at least one of recovery from a power failure or recovery from a network failure; The reconnection request means, If the determination means determines that the reconnection request is a reconnection request based on at least one of recovery from the power failure or recovery from a network failure, the reconnection request is determined after the meter reading value notification period has elapsed.
  • the computer Means for sending, To function as 27.
  • the program described in. 29. The computer, Means for setting the timing for transmitting the reconnection request after elapse of the meter reading value notification period, based on information unique to the computer for transmitting the meter reading value, which is the reconnection request unit; To function as 27. Or 28.
  • the program described in. 30. The computer, A means for monitoring the power supply state from the commercial system and detecting the occurrence of a power failure based on the presence or absence of power supplied from the commercial system; For functioning as 28.
  • the program described in. 31. The computer, A means for monitoring the radio field intensity from the base station and detecting a network failure based on whether or not the radio field intensity has become a predetermined value or less. For functioning as 28.
  • the program described in. 32 The computer, Means for reconnection request means for obtaining a current time in response to a notification from the determination means, and determining whether the current time is within a meter reading value notification period; To function as 27. To 31. The program as described in any one of these. 33.
  • the computer, In the reconnection request means if the current time is within the meter reading value notification period, it waits without transmitting a reconnection request until the meter reading value notification period elapses, Means for sending a reconnection request if the current time is not within the meter reading notification period; To function as 32.
  • the program described in. 34 The program described in. 34.
  • the computer The determination means, Detect the first timing when the network failure occurs and the second timing recovered from the network failure, From the first timing and the second timing, obtain the duration of the network failure, Means for determining whether to transmit the reconnection request according to the duration of the network failure; To function as 27. To 33. The program as described in any one of these. 35. The computer, Means for transmitting the reconnection request during the next meter reading value notification period when the reconnection request has failed a predetermined number of times after the meter reading value notification period has elapsed, To function as 27. To 34. The program as described in any one of these. 36. The meter reading value notification period is set based on the number of computers that transmit the meter reading value existing under the control of a base station. 27.
  • the ratio between the length of the meter reading value notification period and the length of the period for performing the reconnection request is set based on the number of computers that transmit the meter reading value connected to the base station or the communication state of each base station.
  • the reconnection request is an execution request of at least one of communication establishment processing with a device located on the upstream side or authentication processing of a computer that transmits the meter reading value, with the direction in which the meter reading value is transmitted as the upstream side including, 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Selective Calling Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un dispositif de communication (10) qui transmet une valeur de relevé de compteur pourvu : d'une unité de détermination (110) qui détermine si oui ou non certaines conditions relatives à la transmission d'une demande de reconnexion ont été satisfaites ; et d'une unité de demande de reconnexion (120) qui, en fonction de la détermination par l'unité de détermination (110), transmet la demande de reconnexion après une période de notification de valeur de relevé de compteur, qui est répétée avec un certain intervalle, s'est écoulée.
PCT/JP2016/054157 2015-03-25 2016-02-12 Dispositif de communications, procédé de communications et programme WO2016152307A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017507589A JP6648754B2 (ja) 2015-03-25 2016-02-12 通信装置、通信方法、およびプログラム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015062939 2015-03-25
JP2015-062939 2015-03-25

Publications (1)

Publication Number Publication Date
WO2016152307A1 true WO2016152307A1 (fr) 2016-09-29

Family

ID=56977246

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/054157 WO2016152307A1 (fr) 2015-03-25 2016-02-12 Dispositif de communications, procédé de communications et programme

Country Status (2)

Country Link
JP (1) JP6648754B2 (fr)
WO (1) WO2016152307A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018082354A (ja) * 2016-11-17 2018-05-24 ミネベアミツミ株式会社 通信端末及び通信システム
JP6333484B1 (ja) * 2017-01-17 2018-05-30 三菱電機株式会社 通信装置、検針システムおよび停電通知方法
CN108257375A (zh) * 2017-12-29 2018-07-06 南昌市科陆智能电网科技有限公司 一种电网抄表方法和***
JPWO2017164179A1 (ja) * 2016-03-23 2018-12-27 京セラ株式会社 無線通信システム、通信装置、センサ機器、および無線通信方法
JP2019033564A (ja) * 2017-08-04 2019-02-28 株式会社東芝 情報処理装置、通信システム、情報処理方法、およびプログラム
WO2020022401A1 (fr) * 2018-07-26 2020-01-30 京セラ株式会社 Terminal sans fil et procédé
CN111771369A (zh) * 2018-05-02 2020-10-13 岩谷产业株式会社 警报装置和信息处理***
JP2021071365A (ja) * 2019-10-30 2021-05-06 シチズン時計株式会社 自動再接続機能を有する電子時計
JP6968312B1 (ja) * 2020-06-26 2021-11-17 三菱電機株式会社 通信端末、通信システム、省電力制御方法および省電力制御プログラム
JP2022076761A (ja) * 2020-11-10 2022-05-20 ベストリハ株式会社 管理装置、管理システムおよびプログラム
WO2023027075A1 (fr) * 2021-08-27 2023-03-02 日本碍子株式会社 Dispositif de communication, compteur intelligent et batterie secondaire

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005109752A (ja) * 2003-09-29 2005-04-21 Ntt Docomo Hokkaido Inc 情報収集装置、プログラムおよび情報収集システム
JP2013138510A (ja) * 2007-09-26 2013-07-11 Nec Corp 無線通信システム及び方法
WO2013133211A1 (fr) * 2012-03-09 2013-09-12 三菱電機株式会社 Dispositif de communication de données, système de communication de données et procédé de communication de données
WO2014013667A1 (fr) * 2012-07-19 2014-01-23 パナソニック株式会社 Dispositif de lecture de compteur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005109752A (ja) * 2003-09-29 2005-04-21 Ntt Docomo Hokkaido Inc 情報収集装置、プログラムおよび情報収集システム
JP2013138510A (ja) * 2007-09-26 2013-07-11 Nec Corp 無線通信システム及び方法
WO2013133211A1 (fr) * 2012-03-09 2013-09-12 三菱電機株式会社 Dispositif de communication de données, système de communication de données et procédé de communication de données
WO2014013667A1 (fr) * 2012-07-19 2014-01-23 パナソニック株式会社 Dispositif de lecture de compteur

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2017164179A1 (ja) * 2016-03-23 2018-12-27 京セラ株式会社 無線通信システム、通信装置、センサ機器、および無線通信方法
JP2018082354A (ja) * 2016-11-17 2018-05-24 ミネベアミツミ株式会社 通信端末及び通信システム
US10638290B2 (en) 2016-11-17 2020-04-28 Minebea Mitsumi Inc. Communication terminal and communication system
JP6333484B1 (ja) * 2017-01-17 2018-05-30 三菱電機株式会社 通信装置、検針システムおよび停電通知方法
WO2018134881A1 (fr) * 2017-01-17 2018-07-26 三菱電機株式会社 Dispositif de communication, système de lecture de compteur et procédé de notification de coupure de courant
JP2019033564A (ja) * 2017-08-04 2019-02-28 株式会社東芝 情報処理装置、通信システム、情報処理方法、およびプログラム
JP6997555B2 (ja) 2017-08-04 2022-01-17 株式会社東芝 情報処理装置、通信システム、情報処理方法、およびプログラム
CN108257375A (zh) * 2017-12-29 2018-07-06 南昌市科陆智能电网科技有限公司 一种电网抄表方法和***
CN111771369A (zh) * 2018-05-02 2020-10-13 岩谷产业株式会社 警报装置和信息处理***
JPWO2020022401A1 (ja) * 2018-07-26 2021-08-02 京セラ株式会社 無線端末及び方法
WO2020022401A1 (fr) * 2018-07-26 2020-01-30 京セラ株式会社 Terminal sans fil et procédé
JP7178412B2 (ja) 2018-07-26 2022-11-25 京セラ株式会社 無線端末及び方法
US11723083B2 (en) 2018-07-26 2023-08-08 Kyocera Corporation Radio terminal and method
JP2021071365A (ja) * 2019-10-30 2021-05-06 シチズン時計株式会社 自動再接続機能を有する電子時計
JP7236367B2 (ja) 2019-10-30 2023-03-09 シチズン時計株式会社 自動再接続機能を有する電子時計
JP6968312B1 (ja) * 2020-06-26 2021-11-17 三菱電機株式会社 通信端末、通信システム、省電力制御方法および省電力制御プログラム
WO2021260938A1 (fr) * 2020-06-26 2021-12-30 三菱電機株式会社 Terminal de communication, système de communication, procédé de commande d'économie d'énergie et programme de commande d'économie d'énergie
JP2022076761A (ja) * 2020-11-10 2022-05-20 ベストリハ株式会社 管理装置、管理システムおよびプログラム
JP7395187B2 (ja) 2020-11-10 2023-12-11 ベストリハ株式会社 管理システムおよびプログラム
WO2023027075A1 (fr) * 2021-08-27 2023-03-02 日本碍子株式会社 Dispositif de communication, compteur intelligent et batterie secondaire

Also Published As

Publication number Publication date
JP6648754B2 (ja) 2020-02-14
JPWO2016152307A1 (ja) 2018-01-18

Similar Documents

Publication Publication Date Title
WO2016152307A1 (fr) Dispositif de communications, procédé de communications et programme
CN107645529B (zh) 心跳包发送方法及装置
US10164858B2 (en) Apparatus and methods for monitoring and diagnosing a wireless network
AU2022259780B2 (en) Photovoltaic management and module-level power electronics
CN107005443B (zh) 用于中继消息的方法、住宅网关、存储装置
JP7234402B2 (ja) 車両通信のためのセカンダリリンクモニタリング方法、車両通信端末、電子機器及びコンピュータプログラム
CN105635248A (zh) 一种tcp连接资源的释放方法及***
US10959122B2 (en) Method and device for transmitting data
CN109040295B (zh) 异常断线的确定方法及装置、终端及存储介质
WO2015177613A1 (fr) Appareil de surveillance, et système de surveillance utilisant celui-ci
WO2015154462A1 (fr) Procédé et dispositif de gestion de programme d'application de communication instantanée et terminal mobile correspondant
CN103139818A (zh) 一种aos中保持长连接的方法、***、aoe、aog及终端
CN103686854A (zh) 控制ap的方法和装置
WO2014036724A1 (fr) Procédé de reprise sur défaillance de canal d'exploitation et de maintenance et terminal de gestion de réseau
EP3703221A1 (fr) Dispositif de gestion d'énergie, système de gestion d'énergie, et procédé de gestion d'énergie
CN112702202A (zh) 电表通信链路故障恢复方法、装置和计算机设备
WO2014050493A1 (fr) Dispositif de secours, dispositif principal, système de configuration de redondance et procédé de dispersion de charge
WO2017142015A1 (fr) Système de gestion, procédé de gestion, terminal d'exploitation et appareil de commande
JP2017017543A (ja) 通信装置、その制御方法、およびプログラム
WO2005104435A1 (fr) Procedes, dispositifs et progiciels utilisant un protocole d'affiliation de noeuds pour la surveillance et/ou le controle de dispositifs aptes a etre connectes au reseau
CN104378230A (zh) 一种提高Telnet服务端稳定性的***和方法
KR20140033421A (ko) Ｍ2ｍ 환경을 지원하는 무선접속시스템에서 비정상 정전 상황을 보고하기 위한 임의접속과정 수행방법
CN102014054A (zh) 保活报文的发送方法和设备
CN110213364B (zh) 快递柜监控方法、***、存储介质和设备
JP2013162219A (ja) 通信装置、通信システム、通信方法および通信プログラム

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: 16768210

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017507589

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16768210

Country of ref document: EP

Kind code of ref document: A1