KR100791781B1 - Remote control system for Electronic watt hour meter - Google Patents

Abstract

     According to the present invention, a distribution transformer monitoring station (DTMS) is installed on the second lane of a transformer to collect meter reading data of a electricity meter, and a wireless internet or digital TRS, DTMS, and a consumer electricity meter are connected to a server of a meter reading center. In addition, by configuring a remote meter reading system (AMR, Automatic meter reading) for data communication by RF (Radio frequency) or dedicated line, DLMS (Device Language Message Specification) part, which is a communication protocol with electricity meter, It saves personal information of elderly people who need to protect in server or DTMS of utility meter reading center by saving only one in distribution transformer monitoring station (DTMS) instead of one for each communication modem. Protect the elderly who live alone with the load profile stored for the purpose of demand management (peak management) Collecting LP (Load profile) data of elderly living alone meter in real time Compare and analyze the fluctuation of minute electric energy usage of elderly living alone to check the safety of elderly living alone and prevent lone death. to be.

Elderly living alone, remote meter reading, transformer load management, PLC, wireless communication, electricity meter, SIU, DTMS

Description

Remote metering system of electricity meter {Remote control system for Electronic watt hour meter}

    The present invention is a CDMA or HFC or digital TRS with a server of the meter reading center and the distribution transformer monitoring station (DTMS), when the DTMS Slave, DTMS and DTMS Slave with the RF, DTMS and DTMS Slave and the available power meter Part of DLMS (Device Language Message Specification), a communication protocol with electricity meters that collect meter data by establishing automatic meter reading (AMR), which communicates data through power line communication (PLC), RF, or dedicated lines. Increase the economical efficiency by placing only one distribution meter in the distribution transformer monitoring station (DTMS) rather than each meter of the customer.

     LP (Load profile) of the electricity meter for the elderly living alone, which stores the personal information of the elderly living alone in the server or DTMS of the utility company's meter reading center and stores the load profile for 90 days for the purpose of managing power demand (peak management). Collect data in real time Compare and analyze minute fluctuations in the amount of electricity used by elderly people living alone.If it is abnormal, notify the senior citizens living alone, the local government, police station, fire department, etc. It is a remote meter reading system of electricity meter that visits directly and performs the task of protecting the elderly living alone.

      Utility companies are converting electricity consumption readings from direct visits by meter readers to off-site meter reading (OMR) and automatic meter reading (AMR) using wired and wireless Internet.

There are about 30 electricity meters belonging to DTMS. Serial communication received from microcontroller of communication modem when DLMS (Device Language Message Specification) part, which is language for meter communication, is placed in communication modem built in (or detachably sealed) power meter. The DLMS module converts the protocol data into DLMS protocol and transmits it to the electricity meter by IR communication, and converts the DLMS protocol data received by IR communication from the electricity meter into serial communication protocol and transmits it to the microcontroller of the communication modem. In the configuration, more than 32kbyte microprocessor will be added to each meter's communication modem.

     However, if the DLMS (Device Language Message Specification) part is not placed for each communication modem built in (or detachably sealed) in the electricity meter, and is placed in the DTMS, the data of the serial communication protocol received from the DTMS control unit 300 is stored in the DLMS protocol in the DLMS part of the DTMS. To convert the DLMS protocol data received from the electricity meter's communication modem to the serial communication protocol and transfer it to the DTMS control unit 300 to convert 30 or so DLMS modules into one. There is a number.

The utility has put the same function in the electricity meter communication modem when the electricity meter adopts a different communication protocol before unification to DLMS, and the current off-site meter reading (OMR) system or automatic meter reading In the system, as DLMS is the communication language with the meter, the DLMS is modularized and used in the communication modem of the electricity meter.

     As aging and nuclear family age become more and more severe, more and more elderly people who live alone or have no support obligations are increasing.

     Although the country is spending a lot of money to promote basic old-age pension system and elderly care service business, there is no systematic monitoring network or protection system to prevent the death and loneliness of elderly people living alone. In order to check the safety of groups and police departments, they may visit in person or use yakult delivery personnel as safety check assistants, and the Fire and Disaster Prevention Agency can press the emergency button to receive help in case of an emergency at home. (Pipi) is spreading, and in Japan, etc., the government continuously tries to identify the safety of elderly people living alone by keeping track of city gas consumption.

     Even now, the utility company, a public benefit corporation, has implemented an energy welfare policy to protect the underprivileged, such as a welfare discount rate system for low-income and handicapped customers.As a result of the AMR system, LP is reserved for demand management in electricity meters for elderly people living alone. By adding data monitoring function to minute changes in the amount of electric energy collected, it is possible to check and protect the safety of elderly people living alone, and to serve to prevent lone death.

     The AMR technology of the conventional low-voltage power meter is a network in which the present inventors collect the load data of the transformer and the meter reading data of the power meter, and the transformer having the characteristics of connecting the electric pole and the electric pole of the transformer with RF. watt hour meter with a built-in S. IU to process the remote management system inspection, disaster prevention and security information (Unexamined Patent Publication No. 10-2003-0029381 call) and may incorporate a gas for performing the inspection of the load monitoring and power meter (10-a- -2003-0075263), and the network of the present invention is a CDMA + RF considering that the development and commercialization of the communication has changed from wired to wireless in the Internet, wired to wireless in the short-range communication, and from wireless to power line communication. It is composed of + PLC, but some of the configurations of the above invention are simply known technologies that can be selected according to the device environment among the equal means known by the data communication method. The technology of the system configuration that replaces CDMA with HFC (hybrid-fiber coaxial) or optical cable or the PLC with RF or radio line Although there is a slight difference, it installs a concentrator on the second lane of the column transformer and communicates with the server and the concentrator of the metering center through the wireless Internet, the concentrator and the concentrator, or the concentrator and the customer's power meter modem by RF. Integrated remote meter reading system using wired / wireless hybrid communication as similar technologies without substantially the same effect and configuration as the original patent of the applicant of the present invention in terms of the principle of solving the technical problem (Publication Patent Publication No. 10-2003-004322) And an integrated remote meter reading system using ZigBee communication (Publication Patent Publication No. 10-2006-0032532).

     By analyzing the electric energy consumption of the elderly living alone in units of 0.1KWh ~ 1KWh collected for the purpose of visually checking the rate through the display window of the electricity meter, the activities of the elderly living alone with low electric energy usage cannot be identified with high reliability.

However, for the purpose of demand management (peak management), an electronic electricity meter has a LP (Load profile) in which weighing pulses, which can be checked up to 1 / 2,000KWh, are stored for more than 90 days at 15-minute intervals for two channels (effective power and ground reactive power). Since data is preserved, collecting LP (Load profile) data of electricity meters saved for demand management purposes in the meter reading center or DTMS can be used to analyze the activities of senior citizens living alone. .

     Therefore, the electric power company establishes an economical AMR system by placing only one in the DTMS instead of the DLMS (Device Language Message Specification), which is a communication protocol with the electricity meter, for every 30 or so consumer electricity meters included in the DTMS. Collect LP Data from Geriatric Meter It monitors and analyzes the amount of fine energy used to protect the elderly living alone and to run an energy welfare project to prevent lone death.

     As described above, the present invention does not include a Device Language Message Specification (DLMS), which is a communication protocol with an electricity meter, for each communication modem of a plurality of electricity electricity meters belonging to the DTMS, but only one in a distribution transformer monitoring station (DTMS). To increase the economics,

   Remote load of electricity meter that collects and analyzes the minute electricity consumption of elderly people living alone and collects and analyzes LP (Load profile) data stored for the purpose of demand management of elderly people living alone in the meter reading center or DTMS. The purpose is to provide a protection system for the elderly living alone using the meter network.

      The present invention does not place a DLMS (Device Language Message Specification) part, which is a communication protocol with a electricity meter, for each communication modem of a plurality of consumer electricity meters belonging to the DTMS, but only one in a distribution transformer monitoring station (DTMS) for the remote meter reading system of the electricity meter. Increase economics,

     Collect the LP (Load profile) data of the electricity meter in real time as an additional service of the automatic meter reading (AMR) of the electricity meter. Analysis of the fluctuations in the use of minute electrical energy of the elderly living alone. It is to ensure the safety of the residents and to prevent the death of loneliness, so that the utility company can carry out energy welfare policies to protect the elderly living alone and prevent the death of loneliness at no extra cost.

      The configuration and operation of the present invention will be described in detail with reference to a network combining CDMA + RF + PLC as follows. CDMA can be replaced with HFC or digital TRS, PLC can be replaced with RF, and no matter how the network is configured, Collecting LP (Load profile) data saved for the purpose of demand management (peak management) of the elderly electricity meter alone, without having DLMS department, improves economic efficiency and protects the elderly living by analyzing the collected fluctuations up to minute power consumption up to 0.5Wh. To prevent lone death.

In describing the configuration and operation of an automatic meter reading (AMR) system of a watt-hour meter, detailed descriptions of well-known functions or detailed configurations will be omitted if it is determined that the present invention may unnecessarily obscure the subject matter of the present invention.

     DTMS slave and data in case of having power supply unit 303 outputted by DC power to transformer secondary line, CDMA modem 301 for data communication with utility company metering center server, PLC modem 304 for data communication with customer electricity meter, DTMS slave The meter reading server 101 is configured by configuring a distribution transformer monitoring station (DTMS) 103 including an RF modem 302 for communication, a DTMS controller 300 incorporating an operation program, and a Device Language Message Specification (DLMS) module 305. Data communication is performed by CDMA, and data communication is performed by DTMS slave by RF, and data communication is performed by PLC with PLC modem 105 of a customer power meter that receives power from the transformers.

     Built-in power supply unit 403, which outputs DC power to the second line of the column transformers adjacent to DTMS 103, RF modem 401 for data communication with DTMS, PLC modem 402 for data communication with consumer electricity meter, and operating program. A DTMS Slave 104 including a DTMS control unit 400 and a Device Language Message Specification (DLMS) module 404 is configured to perform data communication with the DTMS 103 by RF and power from the transformers. Data communication with the PLC modem 105 of the receiving power meter is supplied by the PLC.

     The DLMS control MICOM 410 includes a DLMS communication control unit 411, a DTMS communication unit 412, a PLC communication unit 413, and a data storage unit 414.

     The DLMS communication controller 411 converts the data received from the DTMS controller 300,400 through the serial communication (asynchronous) protocol into the DLMS communication protocol and transmits the data to the PLC modem 305,402 and receives the DLMS communication protocol from the PLC modem 305,402. The data is converted into a serial communication protocol and transmitted to the DTMS control unit 300 or 400. The DTMS communication unit 412 transfers the data received from the DTMS control unit to the DLMS communication control unit 411 and transfers the data received from the DLMS communication control unit 411 to the DTMS. Transfer to the controller 300,400.

     The PLC communication unit 413 receives data from the DLMS communication control unit 411 and transfers the data from the PLC modem of the electricity meter to the DLMS communication control unit 411 and transfers the data from the PLC modem of the electricity meter to the RAM. The DLMS control MICOM 410 is used as a place to store the main data.

     In the data communication with the electricity meter, DLMS module 305, 404 converts data received from the DTMS control unit 300, 400 of the DTMS 103 and the DTMS slave 104 into the serial communication protocol into the DLMS communication protocol. The controller transmits the data to the PLC modem 105 and converts the data received by the DLMS protocol from the PLC modem 105 of the electricity meter into a serial communication protocol and transmits the DTMS and the DTMS controller 300,400 of the DTMS slave.

     If the CPU of the DTMS control unit 300 or 400 of the DTMS 103 or 104 is embedded with the OS, the DLMS control program can be built without the DLMS (Device Language Message Specification) module 305 or 404. If the CPU is a microcomputer, the DLMS module can be separately installed. It is also possible to embed the DLMS control program in the microcomputer of the DTMS control unit (300, 400), but it is preferable to put separately to prevent the load.

     Referring to the system configuration of Figure 1 and the communication method of Figure 2 cross-referenced,

   Built-in (or detachably sealed) PLC (Power Line Communication) modem in the electricity meter of consumers receiving power from the same transformer to perform data communication with DTMS 103 or DTMS Slave 104 to collect meter data of the customer electricity meter The DTMS slave 104 then sends meter reading data of the consumer electricity meter to the DTMS 103.

     The DTMS 103 transmits and receives the meter reading data of the stored electricity meter in accordance with the information request of the meter reading center server 101 by the mobile communication network 202.

     3 is a configuration of the DTMS 103 of the base station, the DTMS control unit 300 with the device operation program is built in the meter reading center while receiving the DC power required for operation from the power supply unit 303 outputted from the transformer secondary line and rectified by DC power The server 101 transmits and receives through the CDMA modem 301 and the DTMS slave 104 communicates with the RF modem 302.

      The DTMS 103 or DTMS Slave 104 attached to the second lane of the transformer is collected via the DLMS module 305 and 404 by the PLC modem 501 and the PLC communication 204 of the electricity meter of the consumers powered by the same transformer. The metering data of a consumer electricity meter is stored in RAM 306 (405), which is a data storage device, and the DTMS slave 104 transmits the electricity consumption meter reading data of the consumer to the DTMS 103.

     The DTMS control unit 300 incorporating the device operation program of the DTMS 103 is supplied from the meter reading center server 101 to the wireless Internet while receiving the power required for operation from the power supply unit 303 outputted from the secondary lane of the transformer and rectified by DC power. The information to be sent is received via the CDMA modem 301 and transmitted to the DTMS slave 104 via the RF modem 302.

The information at this time includes an update input of the time transmitted by the mobile communication incidentally, and updates the clock of the consumer electricity meters in real time when collecting the meter data of the consumer electricity meters.

     4 is a configuration of the DTMS slave 104, the microcontroller 400 with the built-in device operating program is supplied from the power supply unit 403 outputted from the transformer secondary line and rectified by DC power, DTMS while operating, DTMS Information received from 103 is received by RF and transmitted and received by a customer modem and a PLC modem 402 supplied with power from the transformer. The information at this time includes a real-time update input transmitted through DTMS 103 in mobile communication, and when collecting load data of transformer every predetermined time (usually 15 minutes) or collecting meter reading data of customer electricity meters Update in real time.

     The meter reading data collected by the customer electricity meter at predetermined time periods are temporarily stored in the RAM memory 405, which is a data storage device, and transmitted according to the information request of the DTMS 103. When an abnormality occurs, the meter reading center server immediately passes through the DTMS 103. Notify 101 of the alarm.

     5 is a configuration of the customer modem 105, the microcontroller 500 in which the device operation program is embedded, the information from the DTMS 103 and DTMS slave 104 and the customer power meter while receiving the DC power required for operation from the power supply unit Information is transmitted and received by PLC communication. At this time, the information includes a real-time update (RTC, clock generator) input incidentally transmitted in the mobile communication sent through the DTMS and DTMS slave, and the microcontroller 500 which receives the update updates the clock of the electricity meter in real time.

     If a power failure is detected, the backup power (battery) is connected from the power supply unit 503 to store current information in the EEPROM memory 504 against the power failure, and then enter the saving mode. When power is supplied again, the device is updated with the information in the memory. Then return to normal.

     In the present invention, reference numerals 305, 405, and 505 as lower peripheral devices are clock generators for generating a CLOCK signal for driving a microcontroller, and a clock controller of an electronic timer function is provided. The display 507 receives a signal output from a microcontroller and receives data and It is a display device that displays and displays the status digitally on LCD screens such as LCD and LED.

     FIG. 6 is a format of data constituting a protocol required for the devices to communicate with each other, a point 601 of a power company, a DTMS 602 managed by one point, a DTMS slave 603 managed by one DTMS, Serial number of customers managed by one DTMS or DTMS Slave, and division of tasks such as time calibration, normal meter reading, and specific meter reading (605), which distinguishes whether it is sending from upper to lower or receiving from upper to lower A total of 24 bytes of the code 606, the actual data 607, and the error check 608 that checks the accuracy of the communication data.

     In addition, the microcontrollers 300, 400, and 500 are provided with a universal asynchronous receiver / transmitter (UART) as a serial communication device to interface with respective modems.

     If the customer's electricity meter has a PLC modem built-in (or attached and sealed) or there is no electricity meter, water consumption, gas consumption, or the elderly who live alone, the electricity meter 700 for the elderly living alone is installed separately for meter reading. In this case, as shown in FIG. 7, the SIU (System Interface Unit) 710 including the main controller unit 711, the PLC communication unit 713, and the RF communication unit 712 is built-in, and is connected to a water gas meter as well as the electric power measuring unit 711. do.

     The operation of the DTMS 103 is as follows.

     When the meter reading operation program of the meter reading center server 101 is started, the DTMS 103 continuously uses the real time clock (RTC) function that is incidentally transmitted by the mobile communication, and the clock of the DTMS slave 104 and the power meter Control the standard time while storing the history of the elderly living alone received from the meter reading center server 101, that is, his or her personal information, mobile phone, protection agency contacts, etc. in addition to his address, name and phone number and connected to the DTMS (103) LP (Load profile) data of elderly people living alone are collected directly, and LP (Load profile) data of elderly people living alone connected to DTMS Slave (104) is collected through the relay of DTMS Slave (104), DLMS (Device Language Message Specification) Rather than placing each) in the communication modem of the electricity meter, only one is placed in the DTMS 103 and the DTMS slave 104 to improve the economics.

     Until now, the meter reading of the low-voltage power meter has been collecting only the power capacity up to 0.1KWh unit for the purpose of charge calculation, but the present invention pulses the load history (LP, Load profile) to the electronic power meter for the purpose of power demand management (peak management). Since it can be stored in units and detect up to 1 / 2,000KWh, it was conceived that collecting the LP data of the elderly elderly living alone can also monitor the amount of minute electrical energy used by the elderly living alone.

     DTMS (103) runs a program that ignores the power consumption of the compressor of the intermittent and the same amount of electric energy used by the elderly living alone, or by prolonging the time period (e.g., turning on the lights and watching TV at 6 pm From midnight to turn off the lights and go to bed at 6 am the following day), if there is a problem by comparing the change of electricity energy usage according to the time zone, call the elderly living alone and check the abnormality. When this occurs or when it is impossible to confirm, first, the guardian and the protection agency of the elderly living alone are delivered to the SMS (Short message service) of the mobile phone and report the situation to the meter reading center.

     If you install the SIU (System interface unit) in the customer's electricity meter and read the electricity meter and water or gas exclusively for the elderly living alone, it is estimated that there is an abnormality of the elderly living alone when there is no change in the amount of electricity energy usage or the use of water or gas. can do.

If you install the seal sensor or the door opening / closing sensor on the main line of the elderly living alone, you can detect the movement of the elderly living alone and protect it.

     The above network is composed of CDMA + RF + PLC considering that the development and commercialization of communication has shifted from wired to wireless in the Internet and wired to wireless in the short-range communication. Some of the equivalent means known as data communication methods have been switched from simple known techniques that can be selected according to the device environment, that is, CDMA to HFC (hybrid-fiber coaxial), optical cable or digital TRS. Switching or switching the PLC to a radio frequency (RF) does not depart from the scope of the present invention.

     In other words, no matter how the network is configured, when configuring automatic meter reading (AMR) of the electricity meter, the DLMS (Device Language Message Specification) part, which is a communication protocol with the electricity meter, is placed in the distribution transformer monitoring station (DTMS). It is possible to improve economics by leaving only one and collect LP (Load profile) data of elderly people living alone in real time by comparing and analyzing the minute electricity energy usage of elderly people living alone to check the safety of elderly people living alone and prevent lone death.

   1 is an overall system configuration of the present invention

   2 is a diagram illustrating a mutual communication scheme of the present invention.

   3 is an internal block diagram of a DTMS applied to the present invention

   4 is a block diagram of the internal structure of the DTMS Slave applied to the present invention

   5 is an internal block diagram of a consumer modem applied to the present invention

   6 is a configuration diagram of a data format of a protocol applied to the present invention.

   7 is a schematic configuration diagram of an electronic wattmeter with a built-in SIU according to another embodiment of the present invention

   8 is a block diagram of a DLMS applied to the present invention

      <Explanation of symbols for the main parts of the drawings>

      101: meter reading center server 102: mobile communication network

      103: DTMS 104: DTMS Slave

      105: customer modem 201,202: mobile communication

      203: Near field communication 204: PLC communication

      300, 400: DTMS control unit 301: mobile communication modem

      302,401: Near field or wireless communication modem 303,403,503: Power unit

      304,404,504: memory 305,405,505: clock control

      306,406: voltage current detection unit 309,402,501: PLC communication modem 500: microcontroller 502: meter usage check 506: power failure check

       700: meter 701: power measurement unit

       710: System interface unit (SIU) 711: Main controller unit

       712: RF communication unit 713: PLC communication unit

Claims (8)

      In the remote meter reading system of the electricity meter,      Including the power supply unit 303, DC data output to the secondary line of the transformer, the data communication modem 301 with the metering center server, the data communication modem 302 with the consumer electricity meter, the DTMS control unit 300 containing the operation program When the DTMS (Distribution transformer monitoring station) 103 is configured and the DTMS slave 104 is placed, a power supply unit (403) outputting DC power to the secondary lines of the transformer around the DTMS, a data communication modem with the DTMS (401), and a consumer electricity meter DTMS Slave (104) including the data communication modem 402, DTMS control unit 400 with the built-in operation program is configured, and the customer's power meter has a built-in data communication modem (501) with DTMS, DTMS Slave (103, 104) Detachable and combined seal) stores the personal information of the elderly living alone in the meter reading center server 101 or DTMS 103 and collects LP (Load profile) data of the elderly meter reading alone in the meter reading center server 101 or DTMS (103). Living alone by comparing and analyzing changes in energy usage Remote meter reading system of the electricity meter, characterized in that it is determined whether the phosphorus abnormality.      In the remote meter reading system of the electricity meter,      In addition to the meter reading, the main controller unit 711 in addition to the data communication modem 501 with the DTMS and DTMS slaves 103 and 104 in the meter of the customer in the configuration of paragraph 1 is used for meter reading for a water meter, a gas meter or an elderly person living alone. Meter reading center server (101) by adding a configuration (or removable sealing seal) to the system interface unit (SIU) 700 including a data meter modem (712, 713) for the elderly and the elderly alone. The personal information of the elderly living alone is stored in the DTMS 103, and the LP (Load profile) data of the elderly living meter reading meter and the amount of water or gas used in the meter reading center server 101 or the DTMS 103 are compared. Remote meter reading system of the electricity meter, characterized in that for determining the presence of abnormal living alone.        In the remote meter reading system of the electricity meter,      A power supply unit 303 outputted from a DC power supply to the transformer secondary line, a data communication modem 301 with a metering center server, a data communication modem 302 with a consumer power meter, a DTMS control unit 300 with an operating program, and a DLMS ( A power supply unit 403 and a DTMS that are configured as a distribution transformer monitoring station (DTMS) 103 including a Device Language Message Specification (305) unit 305 and a DTMS slave 104 is output as a DC power supply to a secondary transformer of a DTMS peripheral transformer. The DTMS slave 104 including a data communication modem 401 with a consumer power meter, a data communication modem 402 with a consumer power meter, a DTMS controller 400 having a built-in operation program, and a Device Language Message Specification (DLMS) unit 404. In the power meter of the consumer, a DTMS and a data communication modem 501 with the DTMS slaves 103 and 104 are built-in (or detachably sealed) and a DLMS (Device Language Message Specification) unit 305 or 404 is installed for each communication modem 501 of the electricity meter. DTMS, DTMS Slave (103, A remote meter reading system of the electricity meter, characterized in that the 104.       A power supply unit 303 outputted from a DC power supply to the transformer secondary line, a data communication modem 301 with a metering center server, a data communication modem 302 with a consumer power meter, a DTMS control unit 300 with an operating program, and a DLMS ( A power supply unit (403) configured to configure a distribution transformer monitoring station (DTMS) 103 including a Device Language Message Specification (305) unit 305 and outputting a DC power to a secondary transformer of the DTMS peripheral transformer when the DTMS slave 104 is provided. DTMS slave 104 including a data communication modem 401 with a DTMS, a data communication modem 402 with a consumer electricity meter, a DTMS control unit 400 with a built-in operation program, and a Device Language Message Specification (DLMS) unit 404. The customer's electricity meter has a built-in (or detachably sealed) data communication modem 501 with DTMS and DTMS slaves (103, 104), and the DLMS (Device Language Message Specification) unit 305, 404 is a communication modem 501 of the electricity meter. DTMS, DTMS Slave (103 In the remote meter reading system of the electricity meter at 104,      DTMS, DTMS Slave (103,104) by receiving real time update (RTC, Real Time Clock) data when transmitting data to meter reading center server or additionally transmitting real time clock (RTC, Real Time Clock) data by mobile communication. ) And a meter reading remote meter system, characterized in that to keep the clock of the electricity meter in real time.      The method according to any one of claims 1 to 4,      A data communication modem (301) between a DTMS (103) and a power company metering center server comprises a CDMA modem, an HFC modem, or a digital TRS modem.       The method according to any one of claims 1 to 4,      The data communication modem between the DTMS 103 and the consumer's electricity meter is composed of a PLC modem or an RF modem or an optical modem.       The method of claim 2,      A data reading modem (702, 713) of an electricity meter, a water meter, or a gas meter dedicated to an elderly person living alone is composed of a PLC modem, an RF modem, or an optical modem.         The method according to claim 3 or 4,      Remote meter reading system of the electricity meter, characterized in that the data communication modem built in the consumer's electricity meter is a data communication modem configured without a Device Language Message Specification (DLMS).

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