WO2014013667A1 - Dispositif de lecture de compteur - Google Patents

Dispositif de lecture de compteur Download PDF

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Publication number
WO2014013667A1
WO2014013667A1 PCT/JP2013/003575 JP2013003575W WO2014013667A1 WO 2014013667 A1 WO2014013667 A1 WO 2014013667A1 JP 2013003575 W JP2013003575 W JP 2013003575W WO 2014013667 A1 WO2014013667 A1 WO 2014013667A1
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WO
WIPO (PCT)
Prior art keywords
unit
meter
meter reading
slave
relay
Prior art date
Application number
PCT/JP2013/003575
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English (en)
Japanese (ja)
Inventor
崇士 渡邊
山本　雅弘
Original Assignee
パナソニック株式会社
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 パナソニック株式会社 filed Critical パナソニック株式会社
Priority to JP2014525696A priority Critical patent/JP6161006B2/ja
Priority to CN201380032213.6A priority patent/CN104396274B/zh
Publication of WO2014013667A1 publication Critical patent/WO2014013667A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter

Definitions

  • the present invention relates to a meter-reading device that collects meter-reading value information from a plurality of meters that measure usage amounts of electricity, gas, water, and the like.
  • Patent Document 2 efficiently collects meter reading value information without causing congestion on the telephone line due to simultaneous calls from a plurality of meter reading terminal devices even when wireless calling is performed simultaneously from the meter reading central device.
  • the purpose is to do. Therefore, the value of the transmission time interval and the range of the user ID of the meter reading terminal device to be called are included in the message at the time of simultaneous calling from the meter reading central device, and each meter reading terminal device has a plurality of called meter reading terminals.
  • the terminal device recognizes from the user ID of its own device the number of times the own device should start transmission, calculates the wait time from the simultaneous call time based on the value of the transmission time interval, and this wait time Start sending when it has passed. Thereby, in response to the simultaneous call from the meter-reading central device, the plurality of called meter-reading terminal devices sequentially transmit the meter-reading value information at different times.
  • a synchronous wireless communication system in which a parent device periodically transmits a beacon signal and a child device periodically receives the beacon signal. Since the slave unit sets its own clock to the master unit clock and waits for reception of polling data from the master unit at a predetermined timing, it is particularly effective for power saving in a battery-powered slave unit.
  • a relay unit that relays and transmits a radio signal is used.
  • Patent Document 1 The technique of Patent Document 1 described above is to prevent a collision in re-calling, and cannot prevent the collision at the first transmission.
  • the centralized meter-reading device needs to set a recall time for each meter, it is difficult to flexibly respond to changes in the network configuration.
  • the technique of the said patent document 2 set the transmission time interval to each meter-reading terminal device by the meter-reading central device, the burden of the meter-reading central device was large. Further, the technique is not suitable for a meter reading device using a synchronous communication system including a repeater.
  • An object of the present invention is to provide a meter reading device that efficiently and automatically collects meter reading value information from a plurality of meters using a synchronous communication system including a repeater.
  • the present invention relates to a meter-reading device that collects meter-reading value information from a plurality of meters, each of which is associated with a master unit, at least one relay device, and each of the plurality of meters.
  • the master unit sequentially receives notification of meter reading value information from each of the plurality of slave units.
  • each of the plurality of slave units is periodically started from a subordinate destination of the slave unit among the master unit and the relay unit.
  • a beacon receiving unit that receives a beacon signal that is transmitted automatically, a wait time from when a meter-reading event occurs to when a meter-reading value is notified, the interval between the beacon signals, and between the own device and the parent device Depending on the number of stages of the repeater Out, and in which it was decided to have a call wait control unit for controlling the timing of the call according to the wait time the calculated.
  • the information indicating the number of stages of the repeater is included in the beacon signal received by the slave unit.
  • each of the plurality of slave units further calculates the wait time using its own identification number.
  • FIG. 1 It is a hierarchical structure figure of the radio
  • (A) is a figure which shows the structure of a basic slot
  • (b) is a figure which shows the structure of the link connection slot in a basic slot, respectively.
  • (A) is a figure which shows the structure of a link connection signal
  • (b) is a figure which respectively shows the structure of the repetition frame in a link connection signal, or the frame structure of a beacon signal. It is a figure which shows the internal structure of each apparatus in the radio
  • FIG. 1 Comprising: (a) is a main
  • FIG. 2 is a timing diagram in the case of 1-channel transmission in the wireless communication system of FIG. 1.
  • FIG. 2 is a timing diagram in the case of 2-channel transmission in the wireless communication system of FIG. 1.
  • FIG. 1 is a hierarchical structure diagram of a wireless communication system used in a meter reading device of a gas meter according to an embodiment of the present invention.
  • one master unit, ten relay units, and 330 slave units constitute a tree-shaped network.
  • Each of the slave units is attached to or built in the gas meter. That is, the wireless communication system of FIG. 1 constitutes a meter-reading device that collects meter-reading value information from, for example, a slave unit of a gas meter arranged in each of 330 units in one apartment house.
  • the master unit transmits the collected meter reading value information to a data center (not shown) via a telephone line or the like.
  • slave units having identification numbers 000 to 029 are arranged so as to be subordinate to the master unit. These child devices having identification numbers 000 to 029 communicate directly with the parent device without using a relay device.
  • Thirty slave units having identification numbers 100 to 129 are arranged so as to be subordinate to the relay unit having identification number 10.
  • the slave units having the identification numbers 100 to 129 communicate with the master unit via one relay unit having the identification number 10.
  • Thirty slave units having identification numbers 200 to 229 are arranged so as to be subordinate to the relay unit having identification number 20.
  • the slave units having the identification numbers 200 to 229 communicate with the master unit via two relay units having the identification numbers 20 and 10, respectively.
  • Thirty slave units having identification numbers 300 to 329 are arranged so as to be subordinate to the relay unit having identification number 30.
  • the slave units having the identification numbers 300 to 329 communicate with the master unit via three relay units having the identification numbers 30, 20, and 10, respectively. Although description in the middle is omitted, 30 slave units having identification numbers A00 to A29 are arranged to be subordinate to the relay unit having the identification number A0.
  • the slave units having the identification numbers A00 to A29 communicate with the master unit via 10 relay units having the identification numbers A0, 90, 80, 70, 60, 50, 40, 30, 20, and 10, respectively.
  • the identification number of the relay device may be referred to as a relay device ID
  • the identification number of the slave device may be referred to as a slave device ID.
  • a clock signal called a beacon signal is periodically transmitted from the master unit.
  • the slave units ID000 to 029 and the relay unit ID10 directly connected to the master unit periodically capture the beacon signal from the master unit and synchronize with the clock of the master unit.
  • the parent device is defined as the upper device
  • the child devices with ID000 to 029 and the relay device with ID10 directly connected to the parent device that is the upper device are defined as the lower devices.
  • the relay unit with ID 10 works as the master unit. That is, the ID10 repeater periodically transmits a beacon signal for clock adjustment.
  • the ID100 to 129 slave units and ID20 relay units directly connected to the ID10 relay unit periodically capture the beacon signal from the ID10 relay unit and synchronize with the clock of the ID10 relay unit.
  • the upper device is an ID10 relay device
  • the lower device is an ID100 to 129 slave device and an ID20 relay device directly connected to the ID10 relay device.
  • FIG. 2 is a diagram showing a slot position relationship between devices in the wireless communication system of FIG.
  • FIG. 3A shows the configuration of the basic slot
  • FIG. 3B shows the configuration of the link connection slot in the basic slot.
  • the basic slot is composed of T1 [seconds], and this basic slot is repeated on the time axis.
  • the basic slot is further composed of a lower slot and an upper slot.
  • the lower slot length and the upper slot length are each half the time of T1.
  • the lower slot is a slot for communicating with the lower apparatus
  • the upper slot is a slot for communicating with the upper apparatus.
  • the lower slot is divided into a beacon transmission slot (BT) 31, a link connection slot (L) 32, and a data communication slot (D) 33.
  • the upper slot is divided into a beacon receiving slot (BR) 34, a link connecting slot (L) 35, and a data communication slot (D) 36.
  • the host device periodically transmits a beacon signal using a beacon transmission slot (BT) 31.
  • the lower device periodically receives a beacon signal from the upper device in a beacon receiving slot (BR) 34.
  • the link connection slots (L) 32 and 35 are slots for communication between the upper device and the lower device for link connection.
  • the data communication slots (D) 33 and 36 are slots for performing communication for exchanging data after the link connection between the upper device and the lower device.
  • the link connection slots (L) 32 and 35 are composed of a lower call slot 37 and an upper response / upper call slot 38.
  • the lower call slot 37 is a slot for the lower device to transmit a link connection request signal when it is desired to establish a link connection from the lower device.
  • the upper response / upper call slot 38 is a slot for the upper device to return a response to the link connection request signal from the lower device, or when the upper device wishes to perform link connection from the upper device, the upper device transmits the link connection request signal. Is a slot for transmitting.
  • T2 is the slot length of the lower call slot 37
  • T3 is the slot length of the higher response / upper call slot 38.
  • FIG. 2 shows the slot position relationship among the parent device, the relay devices with IDs 10, 20, and 30 and the child devices with IDs 200, 201, and 300.
  • the notation “lower” represents the lower slot of FIG.
  • the notation “upper” represents the upper slot in FIG.
  • slot numbers 1 to 256 are assigned to the basic slots in order, and the slot number 256 is followed by the slot number 1.
  • the upper part of the slot configuration shown in FIG. 2 is the slot number.
  • signals indicated by arrows such as B1 to B4 indicate beacon signals
  • signals indicated by arrows C1 to C6 indicate signals for entry.
  • the beacon signal is transmitted from the beacon transmission slot 31 in the lower slot of every other basic slot.
  • the beacon signal transmitted from the parent device is periodically received by the relay device with ID10.
  • the repeater with ID10 is configured to receive the beacon signal B1 transmitted from the slot number 1 of the master unit.
  • the beacon signal B1 transmitted from the slot number 1 includes information on the beacon number 1.
  • the start position of the lower slot of the basic slot number 1 of the master unit becomes the start position of the upper slot of the basic slot number 255 of the repeater ID10. Reconfigure the slots.
  • the repeater of ID10 transmits a beacon signal at the odd-numbered basic slot number, like the master unit.
  • the lower device receives the beacon signal transmitted from the basic slot number 1 of the upper device by the same operation, and reconfigures its own slot in synchronization with the timing of the upper device.
  • the slave unit with ID 200 performs a beacon signal reception operation in a continuous reception state for a period longer than the beacon transmission interval T5. This operation is called a search mode as shown in FIG.
  • the master unit and the repeaters with IDs 10, 20, and 30 always transmit a beacon signal at least once.
  • the slave unit of ID200 recognizes that the beacon signal B3 from the relay unit of ID20 is equal to or higher than a predetermined level, the slave unit of ID20 subordinates to the relay unit of ID20, and therefore enters the entry request signal C1 in the upper slot of slot number 253. It transmits to the relay machine of ID20.
  • the ID20 relay device Upon receiving the entry request signal C1, the ID20 relay device transmits a signal C2 that relays the entry request signal from the ID200 slave device to the ID10 relay device. Further, the repeater with ID10 transmits a signal C3 for relaying the entry request signal to the parent device. When receiving the signal C3, the parent device transmits an entry permission signal to the ID 200 child device via the relay signals C4, C5, and C6. Through the operation described above, the slave unit with ID 200 is subordinated under the relay unit with ID 20.
  • C1 to C6 representing the entry request signal, the entry permission signal, and the relay signal use the data communication slots 33 and 36 after performing link connection using the link connection slots 32 and 35 shown in FIG. Sent and received.
  • FIG. 4A shows the signal format of the link connection signal transmitted / received in the link connection slots 32 and 35.
  • the link connection signal is composed of n (n is an integer) repetitive frames 51 to 56 and a main body frame 57.
  • FIG. 4B shows the structure of the repeated frame.
  • the repetitive frame includes a bit synchronization signal 58 for determining a bit sampling position, a frame synchronization signal 59 for detecting the head of data included in the frame, a control signal 60 carrying various control information, It consists of a simple ID 61 in which the ID for identification is shortened.
  • the ID is, for example, 64 bits, and the simple ID is 16 bits obtained by dividing the ID into four.
  • the information indicating which 16 bits of the ID divided into four are used as the simple ID 61 is in the control signal 60.
  • Repetitive frames 51 to 56 are given repetitive frame numbers 1 to n, and the repetitive frame number is added to the control signal 60.
  • the repeat frame is transmitted from a repeat frame having a large repeat number as shown in FIG. 4A, and the repeat frame number is decremented one by one, and the repeat frame number immediately before the main body frame 57 is 1.
  • the signal format of the beacon signal is the same as the repetitive frame configuration shown in FIG. 4B, and the relay stage number information is on the control signal 60.
  • the simple ID 61 is replaced with a beacon ID in the case of a beacon signal.
  • the repeater and the master that are transmitting the beacon signal can be identified by the beacon ID, and at the same time, the number of relay stages can be easily recognized by the slave. More specifically, the base unit has information indicating that the number of relay stages is 0, the ID 10 relay apparatus has information indicating that the number of relay stages is 1, and the ID 20 relay apparatus has 2 relay stages. Is put on the beacon signal transmitted by each.
  • FIG. 5 (a) to FIG. 5 (c) show the internal configuration of each layer of the wireless communication apparatus in the wireless communication system of FIG.
  • FIG. 5 (a) is a block diagram showing a master unit
  • FIG. 5 (b) is a relay unit
  • FIG. 5 (c) is a block diagram showing a slave unit.
  • the transmission / reception unit 2 includes a wireless transmission / reception circuit for performing wireless communication via the antenna 1.
  • the transmission / reception unit 12 includes a wireless transmission / reception circuit for performing wireless communication via the antenna 11.
  • Reference numeral 21 denotes an antenna
  • 22 denotes a transmission / reception unit
  • 23 denotes a beacon reception unit
  • 24 denotes a link connection unit
  • 25 denotes a call weight control unit
  • 26 denotes a control unit
  • 27 denotes a storage unit.
  • the control unit 26 performs time management of the entire wireless communication device and control of each unit.
  • the transmission / reception unit 22 includes a wireless transmission / reception circuit for performing wireless communication via the antenna 21.
  • the beacon transmission in the beacon transmission slot 31 in FIG. 3 (a) is performed using the beacon transmission units 3 and 13 in FIG. 5 (a) and FIG. 5 (b).
  • Beacon reception in the beacon reception slot 34 in FIG. 3A is performed using the beacon receiving units 14 and 23 in FIGS. 5B and 5C.
  • the link connection communication in the link connection slots 32 and 35 in FIG. 3A is performed using the link connection portions 4, 15 and 24 in FIGS. 5A to 5C.
  • the call waiting control unit 25 of the slave unit in FIG. 5 (c) determines the wait time from when the meter reading event occurs until the meter reading value is notified, between the interval between the beacon signals and the own unit and the master unit. Calculation is made according to the number of repeater stages and the ID of the own machine, and the call timing is controlled according to the calculated wait time. Since the slaves collide when calling out the meter reading value notification all at once, a call waiting time is added to delay the notification timing.
  • the storage unit 27 stores the wait time calculated by the call waiting control unit 25.
  • FIG. 6 is a flowchart showing the initial setting operation of the slave shown in FIG.
  • step S01 the network is entered using the procedure described with reference to FIG.
  • step S02 a periodic meter reading setting is received from the master unit.
  • the meter reading time can be set as what hour and minute every day of the month. Daily, weekly, or monthly time settings are also possible.
  • step S03 the relay stage number information is acquired from the beacon signal.
  • step S04 the wait time of the own device is calculated and stored.
  • the beacon signal interval is BI [seconds]
  • FIG. 7 is a flowchart showing the meter reading operation of the slave shown in FIG. 5 (c).
  • step S11 it is checked whether a meter reading event has occurred, that is, whether the set meter reading time has come. If the meter reading time has not yet arrived, it waits until that time. When the meter reading time comes, the process proceeds to step S12.
  • step S12 a call waiting state is entered according to the calculated wait time. When the wait time has elapsed, the process proceeds to step S13.
  • step S13 after the initial transmission of the meter reading value notification is executed, the process proceeds to step S14.
  • step S14 the presence or absence of an acknowledge (ACK) signal from the parent device is checked.
  • ACK acknowledge
  • step S15 a call waiting state before the first retransmission is entered.
  • step S16 after executing the first retransmission of the meter reading value notification, the process proceeds to step S17.
  • step S17 the presence / absence of an ACK signal from the parent device is checked.
  • step S19 the presence or absence of an ACK signal from the parent device is checked. If the ACK signal is received, it is determined that the meter reading value notification has been received by the master unit, and the process returns to step S11. If the ACK signal is not received, it is determined that the meter reading value notification has not been received by the master unit, and the process proceeds to step S20. In step S20, a retransmission error is stored.
  • FIG. 8 shows the order of the meter reading value notification operation of each slave unit in the wireless communication system of FIG.
  • the meter reading time 0:00 (0: 0) is set from the master unit.
  • the time reaches 0:00 the 330 slave units simultaneously determine the meter reading value information.
  • the call waiting time differs for each slave unit.
  • the slave unit of ID100 whose wait time at the time of initial transmission is 30 ⁇ BI sets a value obtained by adding 330 ⁇ BI to the wait time at the time of initial transmission as the first wait time for retransmission. That is, the wait time of the own device is determined as (330 + 30) ⁇ BI, and waits until the time becomes 0: 00+ (330 + 30) ⁇ BI, and the meter reading value notification to the parent device is called.
  • the slave device with ID 200 whose initial transmission wait time is 60 ⁇ BI sets a value obtained by adding 330 ⁇ BI to the initial transmission wait time as the first retransmission wait time. That is, the wait time of the own device is determined to be (330 + 60) ⁇ BI, and waits until the time becomes 0: 00+ (330 + 60) ⁇ BI, and the meter reading value notification to the parent device is issued.
  • the ID100 handset succeeds in the meter reading notification, but the ID200 handset fails in the meter reading notification.
  • the latter executes a second retransmission after a predetermined call waiting time.
  • the slave device with ID 200 whose first retransmission wait time is (330 + 60) ⁇ BI sets a value obtained by adding 330 ⁇ BI to the first retransmission wait time as the second retransmission wait time. That is, the wait time of the own device is determined to be (330 ⁇ 2 + 60) ⁇ BI, and waits until the time becomes 0: 00+ (330 ⁇ 2 + 60) ⁇ BI, and the meter reading value notification to the parent device is issued. In the example of FIG. 8, it is assumed that the slave unit with ID 200 succeeds in the meter reading value notification in the second retransmission.
  • N 0, 1, 2,..., M ⁇ 1
  • Wait time BI x (number of relay stages x M + N) It is.
  • the value of N may be generated by a random function.
  • FIG. 9 is a timing chart in the case of 1-channel transmission in the wireless communication system of FIG. However, the relay device interposed between the parent device and the child device is not shown.
  • the slave unit that has failed in the initial transmission retransmits the meter reading value at the timing of the first received beacon signal after the call waiting for a predetermined time.
  • retransmission may fail for the same reason as the first transmission.
  • FIG. 10 is a timing chart in the case of 2-channel transmission in the wireless communication system of FIG.
  • the base unit transmits a beacon signal by alternately using the A channel and the B channel.
  • a communication failure has occurred when the handset first transmits a meter reading value using the A channel.
  • the slave unit that has failed in the initial transmission retransmits the meter reading value at the timing of the beacon signal first received on the B channel different from the A channel used for the initial transmission after the call waiting for a predetermined time.
  • the possibility of retransmission failure is reduced. Of course, it is possible to use more than two channels.
  • the time stamp included in the meter reading value information is not the transmission time from the slave unit but the meter reading time of the slave unit.
  • the meter-reading device has an effect of being able to efficiently and automatically process calls such as periodic meter-reading, and measures a plurality of usage amounts of electricity, gas, water, etc. This is useful as a technique for collecting meter reading value information from these meters.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Selective Calling Equipment (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Selon l'invention, un système de communication synchrone comprenant des dispositifs serveurs, au moins un dispositif relais, et une pluralité de dispositifs clients respectivement associés à l'un quelconque d'une pluralité de compteurs et respectivement subordonnés à l'un quelconque des dispositifs serveurs et des dispositifs relais, est utilisé. Chaque dispositif client de la pluralité de dispositifs clients comprend : une unité de réception de balise (23) pour recevoir un signal balise périodiquement émis par un dispositif auquel le dispositif client est subordonné, parmi les dispositifs serveurs et les dispositifs relais ; et une unité de commande d'attente d'appel (25) pour calculer un temps d'attente d'une durée allant de l'instant auquel un événement de lecture de compteur survient jusqu'à ce qu'une notification de valeur de lecture de compteur soit faite, faisant cela conformément à l'intervalle de signal balise et au nombre d'étages de dispositifs relais entre le dispositif lui-même et le dispositif client, et pour commander le positionnement temporel d'appels en fonction du temps d'attente calculé.
PCT/JP2013/003575 2012-07-19 2013-06-06 Dispositif de lecture de compteur WO2014013667A1 (fr)

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JP2014525696A JP6161006B2 (ja) 2012-07-19 2013-06-06 検針装置
CN201380032213.6A CN104396274B (zh) 2012-07-19 2013-06-06 读表装置

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JP2012-160446 2012-07-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016152307A1 (fr) * 2015-03-25 2016-09-29 日本電気株式会社 Dispositif de communications, procédé de communications et programme
KR101969486B1 (ko) * 2019-01-15 2019-04-16 (주)가암테크 사물인터넷 환경에서 동시접속 회피 기능을 갖는 원격검침용 단말기
WO2020212722A1 (fr) * 2019-04-19 2020-10-22 Bespoon Sas Systèmes et procédés d'emplacements à bande ultra-large

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0923283A (ja) * 1995-07-05 1997-01-21 Tokyo Gas Co Ltd 一括検針方法
WO2012056633A1 (fr) * 2010-10-27 2012-05-03 パナソニック株式会社 Dispositif de communication sans fil et procédé de communication sans fil

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120057620A1 (en) * 2009-07-15 2012-03-08 Panasonic Corporation Radio communication device, radio communication system, radio communication method, and program for executing radio communication method
CN101751761B (zh) * 2009-12-30 2011-08-31 河南新天科技股份有限公司 一种网络自动路由的无线抄表方法
CN102401848B (zh) * 2010-09-08 2014-05-07 国基电子（上海）有限公司 电表及其通信中继方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0923283A (ja) * 1995-07-05 1997-01-21 Tokyo Gas Co Ltd 一括検針方法
WO2012056633A1 (fr) * 2010-10-27 2012-05-03 パナソニック株式会社 Dispositif de communication sans fil et procédé de communication sans fil

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016152307A1 (fr) * 2015-03-25 2016-09-29 日本電気株式会社 Dispositif de communications, procédé de communications et programme
JPWO2016152307A1 (ja) * 2015-03-25 2018-01-18 日本電気株式会社 通信装置、通信方法、およびプログラム
KR101969486B1 (ko) * 2019-01-15 2019-04-16 (주)가암테크 사물인터넷 환경에서 동시접속 회피 기능을 갖는 원격검침용 단말기
WO2020212722A1 (fr) * 2019-04-19 2020-10-22 Bespoon Sas Systèmes et procédés d'emplacements à bande ultra-large
US11743696B2 (en) 2019-04-19 2023-08-29 Be Spoon Ultra-wideband location systems and methods

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JP6161006B2 (ja) 2017-07-12
JPWO2014013667A1 (ja) 2016-06-30
CN104396274B (zh) 2019-01-11

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