KR20100022608A - Remote automatic meter reading system - Google Patents

Abstract

PURPOSE: A remote meter reading system is provided to reduce work load in a remote meter reading system by transmitting data generated in a parent measuring instrument and a child measuring instrument to a remote meter reading server. CONSTITUTION: A meter(720) transmits measured power usage amount to a remote meter reading modem(1). The meter includes an electronic and a semi-electronic meter. The remote meter reading modem transmits reading data to a remote meter reading server(100) through a communications network(200). The remote meter reading server classifies home-based power usage amount information according to an ID.

Description

Remote meter reading system

The present invention relates to a remote meter reading system, and more particularly, to a remote meter reading system including a remote meter reading modem that receives meter reading data from a meter and transmits it to a remote meter reading server through a communication network.

In general homes or companies, a meter is installed to accumulate energy consumption, and the meter is a mechanical meter that detects the rotation of the dial to generate a predetermined pulse signal and counts the generated pulses to record and display the accumulated energy usage. There is an electronic meter that calculates energy consumption by applying voltage and current of three phases. Recently, the use of electronic meters for the accurate counting of energy consumption is increasing.

In addition, a remote meter reading system has been developed for remote meter reading with a computer using wired / wireless communication media to eliminate the hassle of visiting the meter installation site and collecting meter reading data counted by the meter.

In such a conventional remote meter reading system, a meter reading data is received from an electronic meter by a specific signal (eg, meter related data request signal) applied from a remote meter reading (AMR) server for remote meter reading to be relayed to a remote meter reading server. The modem is in use.

However, the remote meter reading modem used in the conventional remote meter reading system only plays a role of relaying data exchange between the meter reading period and the electronic metering period, and thus cannot determine the current state or operation state of the wired or wireless modem. There is this.

An object of the present invention is to provide a remote meter reading modem that is normally applied to the DC power DC conversion from the AC power and in the emergency is supplied with the remaining charged charging power applied to each component of the DC power DC conversion from the AC power To provide a remote meter reading system including.

Another object of the present invention is a plurality of sub-branches that are used as a common power source branched in the main micro switchgear and the main switchgear to receive and transmit metering data from the meter (mother meter) of the power line main switchgear entering the complex in a large residential complex such as an apartment complex The present invention provides a remote meter reading system including a remote meter reading modem having a microcomputer for transmitting various types of data applied from meters of a switchboard.

A remote meter reading system according to a first embodiment of the present invention for achieving the above object is a system including a remote meter reading modem for receiving the meter data from the meter and transmits it to a remote meter reading server through a communication network, The modem may include: a power supply for converting power supplied from AC power to DC power or supplying emergency power by charging remaining power applied to a central control unit, a memory unit, a remote connection device, and a meter interface unit among DC converted DC power; A meter interface unit for controlling the operation speed and timing of the various data applied from the electronic meter and the various data transferred to the electronic meter and interfacing to a designated data format; It is connected to the power supply unit and the meter interface unit, and is operated by the power applied from the power supply unit, transmits the meter data request signal to the electronic meter through the meter interface unit, and transmits various data applied from the electronic meter Instructs to store by authentication, instructs to transmit specific data (reading data, etc.) converted to standard protocol through designated communication network at external request to the remote meter reading server, and to display the current operating status Central control unit for controlling to send the; Interconnected with the central control unit, each protocol for communicating with various electronic meters is embedded, stores various data applied from the central control unit, and extracts the corresponding data according to the request command of the central control unit. A memory unit for applying; A remote access device supporting data communication with a specific communication network; And a status display unit configured to receive an operation state control signal applied from the central controller and to drive the corresponding LED.

The power supply unit converts power supplied from an AC power source into DC power, and supplies the DC power source, the DC power unit being used as an ordinary power source of the central control unit, the memory unit, the remote connection device, and the meter interface unit; A charging unit configured to charge the remaining power supplied to the central control unit, the memory unit, the remote access unit, and the meter interface unit among the DC-converted DC power to be supplied in an emergency; A charging control unit located at a rear end of the charging unit to control charging power in an emergency; A switch unit configured to be selectively connected to one of the charging control unit or the DC power supply unit so as to be connected to the DC power supply unit at normal times and to connect the charging power through the charging control unit in an emergency; When switching between the DC power supply mode for supplying the DC power and the charging power supply mode for supplying the charging power is made, the DC power or the charging power transferred through the switch unit is first shut off, and then the central control unit and the meter interface. A power cut-off unit for transmitting the unit and the remote access device as it is; A reset control unit which controls the power cutoff unit to block the currently supplied power primarily and then initializes the current power supply state so that power to be supplied next is supplied; And a power control unit supplying power to the reset control unit when the power supply state is initialized by the reset control unit and power supply is not instantaneously performed.

The remote meter reading system according to the second embodiment of the present invention is a system including a remote meter reading modem that receives meter reading data from a meter and transmits it to a remote meter reading server through a communication network, wherein the remote meter reading modem is applied from an AC power source. A DC power supply unit converting power to DC power and supplying the power to the central control unit, the memory unit, the remote access device, and the operating power of the microcomputer and the microcomputer; A preliminary power supply unit for supplying an operation power for notifying that the power is not applied to the remote meter reading server when power is not applied from the DC power supply unit; A micro-controller for controlling the operation speed and timing of various data applied from a meter (mother meter) of a power line main switchgear entering a complex in a large residential complex and interfacing to a designated data format; Adjusting the operation speed and timing of various data applied from the meters (magnetic meters) of the plurality of secondary switchgear branched from the main switch board and used as a common power source and interfaced in a specified data format Jamacom; It is connected to the DC power supply unit, the preliminary power supply unit, the mother microcomputer and the magnetic microcomputer, and is operated by the power applied from the DC power supply unit, and the meter reading data to the corresponding electronic meter (parent meter, magnetic meter) through the mother microcomputer and the magnetic micrometer. Transmits a request signal, instructs to authenticate and store various data applied from the electronic meter, and transmits specific data (measurement data, etc.) converted to a standard protocol through a designated communication network to the remote meter reading server through a designated communication network at an external request; Instructs to transmit an operation state control signal for displaying a current operation state, and if the operation power is not supplied from the DC power supply unit, receives power from the spare power supply unit and transmits power failure information to the remote meter reading server. A central control unit; Interconnected with the central control unit, each protocol for communicating with various electronic meters is embedded, stores various data applied from the central control unit, and extracts the corresponding data according to the request command of the central control unit. A memory unit for applying; A remote access device supporting data communication with a specific communication network; And a status display unit configured to receive an operation state control signal applied from the central controller and to drive the corresponding LED.

It is preferable that power line communication (PLC) is performed between the magnetic meter and the magnetic mic.

A remote meter reading system according to a third embodiment of the present invention is a system including a remote meter reading modem which receives meter data from a meter and transmits the meter reading data to a remote meter reading server through a communication network. A power supply unit which converts power to DC power and supplies the power to the central control unit, the memory unit, the remote connection device, the micro-computer and the micro-communication of the DC-powered DC power, and supplies the emergency power; A micro-controller for controlling the operation speed and timing of various data applied from a meter (mother meter) of a power line main switchgear entering a complex in a large residential complex and interfacing to a designated data format; Adjusting the operation speed and timing of various data applied from the meters (magnetic meters) of the plurality of secondary switchgear branched from the main switch board and used as a common power source and interfaced in a specified data format Jammycomb; It is connected to the power supply unit, the mother microcomputer and the magnetic microcomputer, and is operated by the power applied from the power supply unit, and the meter data request signal to the corresponding electronic meter (maternal meter, magnetic meter) through the mother microcomputer and the magnetic micrometer. Transmits, instructs the electronic meter (mother meter, self-meter) to authenticate and store various data applied from the electronic meter (mother meter, magnetic meter), and converts specific data (measurement data, etc.) converted to a standard protocol through a designated communication network at an external request. A central control unit instructing transmission to the meter reading server and controlling to transmit an operation state control signal for displaying a current operation state; Interconnected with the central control unit, each protocol for communicating with various electronic meters is embedded, stores various data applied from the central control unit, and extracts the corresponding data according to the request command of the central control unit. A memory unit for applying; A remote access device supporting data communication with a specific communication network; And a status display unit configured to receive an operation state control signal applied from the central controller and to drive the corresponding LED.

The central control unit has a function to control the data communication through the communication network embedded in its own TCP / IP, the function to control the communication to convert the protocol of the electronic meter into a standard protocol, and the remote meter reading server Receiving the meter reading data from the electronic meter at the request and relaying the meter reading data to the remote meter reading server or receiving the meter reading data from the electronic meter and storing the meter reading data periodically to transmit the meter reading data to the remote meter reading server; When communication with a plurality of communication networks, it is possible to preferentially select the communication network that can communicate in the optimum conditions to control the data communication to the communication network, and to control the operation status of the remote meter reading modem to be displayed on the status display unit Includes features

In addition, the present invention is characterized in that the embedded system in each of the central control unit and the microcomputer to update the internal program from the remote using the terminal.

By providing the remote meter reading system as described above the following effects occur.

First, DC power converted from AC power is normally applied, and in case of emergency, the remaining charged charging power is supplied to each component of DC power converted from AC power. The system of the invention can be operated.

Second, the MICCOM receives the meter data from the main switchboard of the power line and transmits the data applied from the meter of the sub switchboard which is branched from the main switchboard and used as a common power source. By providing a remote meter reading system including a remote meter reading modem having a remote control, it is possible to transmit the data generated from the mother meter and the self meter to the remote meter reading server, thereby reducing the amount of work in the remote meter reading server. In other words, in the conventional method of transmitting the data of the mother meter and the magnetic meter at the same time, it is troublesome to separate the meter reading data of the mother meter and the meter reading data from the remote metering server again. Since it is transferable, there is no need to perform the above conventional operation.

Third, in the present invention, an embedded system may be mounted in the central control unit and the microcomputer, respectively, to update an internal program remotely when necessary using a terminal (for example, a PC, a PDA, a mobile phone, etc.).

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a simplified diagram of a remote meter reading system according to an embodiment of the present invention, Figure 2 is a simplified diagram of a remote meter reading server according to an embodiment of the present invention.

Referring to the drawings, the remote meter reading system of the present invention comprises a meter 720, a remote meter reading modem (1), the communication network 200 and the remote meter reading server (100).

Meter 720 includes an electronic and inverting meter, and measures the power consumption of the power consumer, the power consumption information is transmitted to the remote meter reading modem (1).

Of course, in the present invention, the amount of power used measured by the electronic meter may be stored in the internal memory provided therein.

The electronic meter 720 is connected to the sensing signal of the meter sensor (not shown) installed in the lead line of the power receiver.

The meter sensor may be a current transformer (CT) installed in the incoming line of the customer power.

The remote meter reading modem 1 receives the meter reading data (power usage information) from the electronic meter 720 and transmits it to a remote server (remote meter reading server) 100 through the communication network 200. It may be implemented in the form as shown in FIG. 4 and FIG.

In the present invention, the unique ID of the customer is also transmitted when the meter reading data (power usage information) is transmitted.

The communication network 200 is connected between the remote meter reading server 100 and the remote meter reading modem to enable data transmission between each other.

Examples of the communication network 200 include a telephone network, an internet network, a mobile communication network, and the like.

The mobile communication network is currently under development or future, such as, for example, a Code Division Multiple Access (CDMA) network, a Global System for Mobile Telecommunication (GSM) network, a Wideband Code Division Multiple Access (WCDMA) network, and a WiBro network. It means one of all wireless mobile communication networks to be commercialized.

The remote meter reading server 100 includes an input / output unit 110 for inputting / outputting data, a function of classifying power consumption information for each household (consumer) transmitted by the corresponding customer ID, and requesting meter reading data of each meter as necessary. Control unit 120 and a storage unit 130 for storing corresponding data under control of the control unit.

3 is an internal block diagram of a remote metering modem according to a first embodiment of the present invention.

Referring to the drawings, the remote meter reading modem 1 according to the first embodiment of the present invention is a power supply unit 600, the meter interface unit 710, the central control unit 400, the memory unit 500, a remote access device 300, the state display unit 510 is configured.

The power supply unit 600 converts power applied from AC power into DC power, or supplies power to the operating power of each component by charging the remaining power applied to each component among DC converted DC power. In case of emergency, supply DC power and charging power in case of emergency.

The power supply unit 600 will be described in more detail. The DC power supply unit 610, the charging unit 620, the charging control unit 630, the switch unit 640, the power cutoff unit 670, the reset control unit 660, and the power control unit And 650.

The DC power supply unit 610 is a device for converting and supplying the power applied from the AC power supply to the DC power supply, and is used as an ordinary power source for each component (central control unit, memory unit, remote connection device, meter interface unit, etc.).

The charging unit 620 charges the remaining power supplied to each component (central control unit, memory unit, remote connection device and meter interface unit, etc.) of the DC-converted DC power supply and supplies it in an emergency.

The charging control unit 630 is located at the rear end of the charging unit 620 to control so that charging power is supplied in an emergency. In this case, emergency means a state in which AC power is not properly supplied (for example, a power failure state).

The switch unit 640 is configured to be selectively connected to one of the charging control unit 630 or the DC power supply unit 610 so that it is normally connected to the DC power supply unit 610 and the charging power through the charge control unit 630 in an emergency. do.

The power cut-off unit 670, when switching between the DC power supply mode for supplying the DC power and the charging power supply mode for supplying the charging power is made, the DC delivered through the switch unit 640 after the power is first cut off. It performs the function of transferring power or charging power to each component (central control unit, meter interface unit, remote access unit, etc.) as it is. For example, when switching from the DC power supply mode to the charging power supply mode, it cuts off the DC power currently supplied and connects the charging power connected through the switch unit to be delivered to each component.

 The reset control unit 660 controls the power cutoff unit 670 to cut off the current power supply first, and then initializes the current power supply state so that power to be supplied next is supplied.

The power controller 650 supplies power to the reset controller 660 when the power supply state is initialized by the reset controller 660 and the power supply is not instantaneously performed.

The meter interface unit 710 may include various types of data (eg, meter reading data, specific electronic meter ID, etc.) applied from the electronic meter 720, and various types of data (eg, meter data request signals, specific electronic types) transmitted to the electronic meter 720. It controls the operation speed and timing of the meter ID, etc.) and interfaces with the specified data format.

For example, the meter interface unit 710 may be implemented to perform data communication with the electronic meter 720 through an RS-232C communication method.

The central control unit 400 is connected to the power supply unit 600 and the meter interface unit 710, operates by a power applied from the power supply unit 600, and the electronic meter 720 through the meter interface unit 710. Instructs to store various data (for example, meter reading data, specific electronic meter ID, etc.) applied from the electronic meter 720 by transmitting the meter reading data request signal to the standard meter, and converts to a standard protocol through a designated communication network 200 upon external request. Control to transmit the specific data (e.g., meter reading data, etc.) to the designated path (e.g., remote detection server) and to send an operation state control signal for indicating an operation state (e.g., connection state, communication state, etc.) It plays a role.

In addition, the central control unit 400 implements data communication through various communication networks 200 by embedding its own TCP / IP, and various electronic meters (for example, ABB, GE, LSIS, Daehan Cable, Iljin, Kumho Meter). It is preferable to convert a protocol of a tag manufactured by Taek, KEPCO standard, AMR-tech, etc. into a standard protocol so that it can communicate.

In addition, the central control unit 400 may receive the meter data from the electronic meter and relay it to the corresponding path by an external request. However, the central controller 400 receives the meter data from a specific electronic meter in advance and stores the meter data periodically. It can also be operated to send to a remote metering server.

In addition, when the central control unit 400 can communicate with a plurality of communication networks (eg, CDMA network, PSTN network, CATV network, and GSM network) 200, the central controller 400 may communicate under conditions of optimum (eg, shortest time, minimum cost). It is preferable to preferentially select the communication network 200 to operate the data communication to the communication network 200 is made.

The memory unit 500 is interconnected with the central control unit 400, has a built-in protocol for communicating with various electronic meters, and various data (for example, meter reading data, applied from the central control unit 400). Specific electronic meter ID), and extracts and authorizes corresponding data according to a request command of the central controller 400.

In addition, the memory unit 500 stores RAM, which stores various variables and data generated during program execution, and important data (for example, meter reading data, specific electronic meter ID, and protocol related data) that are not lost even when the power supply is cut off. EEPROM storing in a register and a ROM storing a program for performing the overall operation of the remote metering modem.

The remote access device 300 serves to support data communication with a specific communication network 200.

In addition, the remote access device 300 includes a CDMA communication module for performing data communication through a CDMA network, a PSTN communication module for performing data communication through a PSTN network, a CATV communication module for performing data communication through a CATV network, and GSM. It includes a GSM communication module for performing data communication through the network. Here, the communication network 200 includes a CDMA network, PSTN network, CATV network and GSM network.

Although the remote access device 300 of FIG. 3 is illustrated as including a CDMA communication module, a PSTN communication module, a CATV communication module, and a GSM communication module, this is only one embodiment and each one according to a communication scheme to be implemented. Of course, only the communication module can be implemented. Configuration and operation of each communication module described above are well known to those skilled in the art and thus will not be described in detail.

The status display unit 510 receives the operation state control signal applied from the central controller 400 and manages to drive the corresponding LED.

In the present invention, the status display unit 510 may be implemented with, for example, eight LEDs, and the local (LOCAL) side status display unit for displaying the operating state of the remote metering modem 1 and the electronic metering period, and remote It is divided into a remote status display unit and a power supply status display unit that display an operation state between the metering modem 1 and the specific communication network 200. The local status display may be composed of three LEDs, for example, an LED indicating that data is being transmitted from the remote metering modem 1 to the electronic meter, and data from the electronic meter to the remote metering modem 1. It may be composed of an LED indicating that is being received and an LED indicating the connection state of the electronic meter and the remote meter reading modem (1). The remote status display unit may be composed of four LEDs, the LED indicating that data is being transmitted from the remote metering modem 1 to a specific communication network, and the data is received by the remote metering modem 1 from the specific communication network. LED indicating that there is, the LED indicating whether the remote metering modem is in a range capable of communicating with a specific communication network, and the LED indicating that the remote meter reading modem is communicating with a specific communication network.

4 is an internal block diagram of a remote metering modem according to a second embodiment of the present invention.

Referring to the drawings, the remote meter reading modem 1 according to the second embodiment of the present invention is a DC power supply unit 820, a spare power supply unit 810, a central control unit 400, a memory unit 500, a remote access device ( 300, the status display unit 510, a mother microcomputer 730, and a magnetic microcomputer 750 are included.

The DC power supply unit 820 converts the power applied from the AC power supply through the power connector to the DC power supply to supply the operating power of each component.

The preliminary power supply unit 810 serves to apply operating power for notifying the external power supply (eg, remote meter reading server) when power is not applied from the power supply unit 410 due to a power failure. .

The mother micom 730 adjusts the operation speed and timing of various data applied from the meter (mother meter) 740 of the power line main switchgear entering the complex in a large residential complex and various data transferred to the mother meter 740. It interfaces with the specified data format.

The jam micom 750 is branched from the main switchgear and the operation speed of the various data applied from the meter (magnetic meter) 760 of the plurality of secondary switchgear used as a common power source and the data transmitted to the magnetic meter 760 And adjust timing and interface with a specified data format.

The mother microcomputer 730 and the magnetic microcomputer 750 may be implemented to perform data communication with the corresponding meters 740 and 760 through a power line communication (PLC) method. For a more detailed description of the mother mimic 730 and the child microcomputer 750 will be described with reference to Figure 5 described later.

The central control unit 400 is connected to the DC power supply unit 820, the preliminary power supply unit 810, the mother microcomputer 730, and the magnetic microcomputer 750 to control the corresponding component.

That is, the central control unit 400 operates by the power applied from the DC power supply unit 820 and transmits the meter reading data request signal to the electronic meter 300 through the mother microcomputer 730 and the magnetic microcomputer 750. Instructs to store various data (e.g., meter reading data, specific electronic meter ID, etc.) applied from the meters 740 and 760, and specific data (e.g., converted to a standard protocol through a designated communication network 200 upon external request). It is instructed to transmit meter reading data, etc.) to a designated path (eg, remote meter reading server), and to transmit an operation state control signal for indicating an operation state (eg, connection state, communication state, etc.).

In addition, when the operating power is not supplied, the central controller 400 receives power from the preliminary power supply 810 and transmits power failure information to a designated path (eg, a remote meter reading server). Here, the central control unit 400 may be implemented to enable data communication through various communication networks 200 by embedding its own TCP / IP, and convert the protocols of various electronic meters into standard protocols so as to communicate with each other. Do.

In addition, the central control unit 400 may receive the meter reading data from the electronic meter and relay it to the corresponding path by an external request. However, the central controller 400 receives the meter data from a specific electronic meter in advance and stores it, and periodically reads the meter data. It can also be operated to send to a remote metering server.

The description of the memory unit 500, the remote access apparatus 300, and the status display unit 510 of FIG. 4 is similar to the memory unit 500, the remote access apparatus 300, and the state display unit 510 of FIG. 3. The same is omitted here.

FIG. 5 is a block diagram illustrating in detail the relationship between the meter and the microcomputer of FIG. 4 and FIG. 6.

As shown in the figure, the amount of power flowing from the high voltage transformer and out through the apartment main switchboard 910 is read by the mother meter 740 and the reading data is applied to the mother microcomputer 730.

In the apartment main switchboard 910, a switchboard for each generation (951 ~ 953) for supplying power to each apartment generation, and a plurality of secondary switchboards (eg, street lamp power supply switchboard for supplying common power used for the apartment common) 921, the septic tank power supply switchboard 922, the water supply pump power supply switchboard 923, and the like.

In the sub-distribution panel, the street lamp power supply switchboard 921, the septic tank power supply switchboard 922, and the feed water pump power supply switchboard 923, the amount of power used is read by the self-meters 761 to 763, respectively. Data is applied to one magnetic mimic 750. The magnetic microcomputer 750 transmits the meter reading data to the mother microcomputer 730 and / or the central control unit 400, which is later transmitted to the remote meter reading server 100 through the communication network 200.

6 is an internal block diagram of a remote meter reading modem according to a third embodiment of the present invention.

Referring to the drawings, the remote meter reading modem 1 according to the third embodiment of the present invention is the power supply unit 600, the central control unit 400, the memory unit 500, the remote access device 300, the status display unit ( 510, a mother microcomputer 730, and a magnetic microcomputer 750 are included.

The power supply unit 600 converts power applied from AC power into DC power, or supplies power to the operating power of each component by charging the remaining power applied to each component among DC converted DC power. In case of emergency, supply DC power and charging power in case of emergency.

That is, the power supply unit 600 may include a DC power supply unit 612, a charging unit 611, a battery control unit 640, a reset unit 630 and a switch unit 620, the power supply unit 600 Detailed descriptions of the components 611, 612, 620, 630, and 640 of FIG. 3 will be described with reference to FIG. 3.

The mother micom 730 adjusts the operation speed and timing of various data applied from the meter (mother meter) 740 of the power line main switchgear entering the complex in the large residential complex and the various data transferred to the mother meter 740. It interfaces with the specified data format.

The jam micom 750 is an operation speed and timing of the various data applied from the meter (magnetic meter) 760 of the plurality of secondary switchgear branched from the main switchgear and used as a common power source and the data transferred to the mother meter It controls and interfaces with the specified data format.

For a more detailed description of the mother microcomputer 730 and the child microcomputer 750 will be described with reference to Figure 5 described above.

The central control unit 400 is connected to the power supply unit 600, the mother microcomputer 730 and the magnetic microcomputer 750, and operates by a power applied from the power supply unit 600, and the mother microcomputer 730 and the microcomputer ( Sending the meter reading data request signal to the electronic meter 300 through the 750, instructs to store various data (for example, meter reading data, a specific electronic meter ID, etc.) applied from the corresponding magnetic meter 740, 760, external Instructs to transmit specific data (e.g., meter reading data, etc.) converted to a standard protocol through a designated communication network 200 to a designated path (e.g., remote meter reading server) upon request, and an operation state (e.g., connection status, communication status, etc.). It transmits an operation state control signal for indicating).

In addition, the central control unit 400 may receive the meter reading data from the electronic meter and relay it to the corresponding path by an external request. However, the central controller 400 receives the meter data from a specific electronic meter in advance and stores it, and periodically reads the meter data. It can also be operated to send to a remote metering server.

The description of the memory unit 500, the remote access apparatus 300, and the status display unit 510 of FIG. 6 includes the memory unit 500, the remote access apparatus 300, and the status display unit 510 of FIG. 3. The same is omitted here.

In the present invention, an embedded system may be mounted in the central control unit 400 and the microcomputers 730 and 750, respectively, so that an internal program can be remotely updated using a terminal (for example, a PC, a PDA, a mobile phone, etc.). . In other words, after the embedded operating system (for example, Linux, Windows, etc.) is mounted in the flash memory or the EEPROM in the central control unit 400 and the microcomputer 730 and 750, if an update is required, the remote connection is made to a PC or the like. You can also perform an update of the device.

There are various update methods using a terminal equipped with such an embedded system, and for example, Korean Patent Application Publication No. 10-2003-0073877 (name: remote memory control method of an embedded system using PC). For details, refer to the above patent.

In addition, the remote system of the present invention may apply a digital TRS called TETRA.

TETRA is a digital frequency public telecommunications (TRS) technology established by the European Radiocommunication Standards Institute (ETSI), also known as the European Digital TRS.

In general, analog TRS technology can provide voice communication services to a large number of users. Tetra, a representative technology of digital TRS, can provide not only voice but also data and real-time video services.

As described above, with reference to the preferred embodiment of the present invention, those skilled in the art will be variously modified and modified within the scope of the present invention without departing from the spirit and scope of the present invention described in the claims below. It will be appreciated that it can be changed.

1 is a simplified diagram of a remote meter reading system according to an embodiment of the present invention;

2 is a simplified diagram of a remote meter reading server according to an embodiment of the present invention;

3 is an internal block diagram of a remote metering modem according to a first embodiment of the present invention;

4 is an internal block diagram of a modem for remote meter reading according to a second embodiment of the present invention;

5 is a block diagram illustrating in more detail the relationship between the meter and the microcomputer of FIGS. 4 and 6;

6 is an internal block diagram of a modem for remote meter reading according to a third embodiment of the present invention;

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

1: remote metering modem 100: remote metering server

110: input and output unit 120: control unit

130: storage unit 200: communication network

300: remote access unit 400: central control unit

500: memory 510: status display

600: power supply

611: charging unit 612: DC power supply

620: switch unit 630: reset unit

640: battery control unit 710: meter interface unit

720: meter 730: mimic

740: mother meter 750: Zycom

760: magnetic meter 810: spare power unit

820: DC power supply

Claims (11)

A remote metering system comprising a remote metering modem for receiving meter reading data from the meter and transmitting the meter reading data to a remote meter reading server through a communication network. The remote metering modem, A power supply for converting power supplied from an AC power source into a DC power source or supplying emergency power by charging remaining power applied to a central control unit, a memory unit, a remote connection device, and a meter interface unit among DC converted DC power sources; A meter interface unit for controlling the operation speed and timing of the various data applied from the electronic meter and the various data transmitted to the electronic meter and interfacing to a designated data format; It is connected to the power supply unit and the meter interface unit, and is operated by the power applied from the power supply unit, transmits the meter data request signal to the electronic meter through the meter interface unit, and transmits various data applied from the electronic meter Instructs to store by authentication, instructs to transmit specific data (reading data, etc.) converted to standard protocol through designated communication network at external request to the remote meter reading server, and to display the current operating status Central control unit for controlling to send the; Interconnected with the central control unit, each protocol for communicating with various electronic meters is embedded, stores various data applied from the central control unit, and extracts the corresponding data according to the request command of the central control unit. A memory unit for applying; A remote access device supporting data communication with a specific communication network; And And a status display unit configured to receive the operation state control signal applied from the central control unit and to drive the corresponding LED. The method of claim 1, The power supply unit, A DC power supply which converts power supplied from AC power into DC power and supplies the DC power, which is used as an ordinary power supply of the central control unit, the memory unit, the remote connection device and the meter interface unit; A charging unit configured to charge the remaining power supplied to the central control unit, the memory unit, the remote access unit, and the meter interface unit among the DC-converted DC power to be supplied in an emergency; A charging control unit located at a rear end of the charging unit to control charging power in an emergency; A switch unit configured to be selectively connected to one of the charging control unit or the DC power supply unit so as to be connected to the DC power supply unit at normal times and to connect the charging power through the charging control unit in an emergency; When switching between the DC power supply mode for supplying the DC power and the charging power supply mode for supplying the charging power is made, the DC power or the charging power delivered through the switch unit is first shut off, and then the central control unit and the meter interface. A power cut-off unit for transmitting the unit and the remote access device as it is; A reset control unit which controls the power cutoff unit to block the currently supplied power primarily and then initializes the current power supply state so that power to be supplied next is supplied; And And a power control unit for supplying power to the reset control unit when the power supply state is initialized by the reset control unit and the power supply is not instantaneously performed. The method of claim 1, The central control unit, A function for controlling data communication through the communication network by embedding its own TCP / IP; Converting the protocol of the electronic meter into a standard protocol and controlling it to communicate; Receive meter reading data from the electronic meter at the request of the remote meter reading server and relay the meter reading data to the remote meter reading server or receive meter data from the electronic meter and store the meter data periodically to transmit the meter reading data to the remote meter reading server. Function to control, When the communication with a plurality of communication networks, it is possible to preferentially select a communication network that can communicate in an optimal condition and to control the data communication to the communication network, A remote meter reading system comprising a function of controlling the operation state of the remote meter reading modem to be displayed on the status display. A remote metering system comprising a remote metering modem for receiving meter reading data from the meter and transmitting the meter reading data to a remote meter reading server through a communication network. The remote metering modem, A DC power supply unit converting a power applied from an AC power source into a DC power source and supplying the operating power of the central control unit, the memory unit, the remote access device, the microcomputer and the microcomputer; A preliminary power supply unit for supplying an operation power for notifying that the power is not applied to the remote meter reading server when power is not applied from the DC power supply unit; A micro-controller for controlling the operation speed and timing of various data applied from a meter (mother meter) of a power line main switchgear entering a complex in a large residential complex and interfacing to a designated data format; Adjusting the operation speed and timing of various data applied from the meters (magnetic meters) of the plurality of secondary switchgear branched from the main switch board and used as a common power source and interfaced in a specified data format Jammycomb; It is connected to the DC power supply unit, the preliminary power supply unit, the mother microcomputer and the magnetic microcomputer, and is operated by the power applied from the DC power supply unit, and the meter reading data to the corresponding electronic meter (parent meter, magnetic meter) through the mother microcomputer and the magnetic micrometer. Transmits a request signal, instructs to authenticate and store various data applied from the electronic meter, and transmits specific data (measurement data, etc.) converted to a standard protocol through a designated communication network to the remote meter reading server through a designated communication network at an external request; Instructs to transmit an operation state control signal for displaying a current operation state, and if the operation power is not supplied from the DC power supply unit, receives power from the spare power supply unit and transmits power failure information to the remote meter reading server. A central control unit; Interconnected with the central control unit, each protocol for communicating with various electronic meters is embedded, stores various data applied from the central control unit, and extracts the corresponding data according to the request command of the central control unit. A memory unit for applying; A remote access device supporting data communication with a specific communication network; And And a status display unit configured to receive the operation state control signal applied from the central control unit and to drive the corresponding LED. The method of claim 4, wherein Remote meter reading system characterized in that the power line communication (PLC) between the magnetic meter and the magnetic mic. The method of claim 4, wherein The central control unit, A function for controlling data communication through the communication network by embedding its own TCP / IP; Converting the protocol of the electronic meter (mother meter, magnetic meter) into a standard protocol and controlling it to communicate; The meter reading data is transmitted from the electronic meter (mother meter, magnetic meter) at the request of the remote meter reading server and relayed to the remote meter reading server or the meter reading data is received from the electronic meter (mother meter, magnetic meter). Storing and periodically transmitting the meter reading data to the remote meter reading server; When the communication with a plurality of communication networks, it is possible to preferentially select a communication network that can communicate in an optimal condition and to control the data communication to the communication network, A remote meter reading system comprising a function of controlling the operation state of the remote meter reading modem to be displayed on the status display. A remote metering system comprising a remote metering modem for receiving meter reading data from the meter and transmitting the meter reading data to a remote meter reading server through a communication network. The remote metering modem, A power supply for converting power supplied from an AC power source into a DC power source or supplying emergency power by charging the remaining power applied to a central controller, a memory unit, a remote connection device, a microcomputer and a microcomputer among DC converted DC power sources; A micro-controller for controlling the operation speed and timing of various data applied from a meter (mother meter) of a power line main switchgear entering a complex in a large residential complex and interfacing to a designated data format; Adjusting the operation speed and timing of various data applied from the meters (magnetic meters) of the plurality of secondary switchgear branched from the main switch board and used as a common power source and interfaced in a specified data format Jammycomb; It is connected to the power supply unit, the mother microcomputer and the magnetic microcomputer, and is operated by the power applied from the power supply unit, and the meter data request signal to the corresponding electronic meter (maternal meter, magnetic meter) through the mother microcomputer and the magnetic micrometer. Transmits, instructs the electronic meter (mother meter, self-meter) to authenticate and store various data applied from the electronic meter (mother meter, magnetic meter), and converts specific data (measurement data, etc.) converted to a standard protocol through a designated communication network at an external request. A central control unit instructing transmission to the meter reading server and controlling to transmit an operation state control signal for displaying a current operation state; Interconnected with the central control unit, each protocol for communicating with various electronic meters is embedded, stores various data applied from the central control unit, and extracts the corresponding data according to the request command of the central control unit. A memory unit for applying; A remote access device supporting data communication with a specific communication network; And And a status display unit configured to receive the operation state control signal applied from the central control unit and to drive the corresponding LED. The method of claim 7, wherein The power supply unit, A DC power supply which converts power supplied from AC power into DC power and supplies the DC power, which is used as an ordinary power supply of the central control unit, the memory unit, the remote connection device and the meter interface unit; A charging unit configured to charge the remaining power supplied to the central control unit, the memory unit, the remote access unit, and the meter interface unit among the DC-converted DC power to be supplied in an emergency; A charging control unit located at a rear end of the charging unit to control charging power in an emergency; A switch unit configured to be selectively connected to one of the charging control unit or the DC power supply unit so as to be connected to the DC power supply unit at normal times and to connect the charging power through the charging control unit in an emergency; When switching between the DC power supply mode for supplying the DC power and the charging power supply mode for supplying the charging power is made, the DC power or the charging power delivered through the switch unit is first shut off, and then the central control unit and the meter interface. A power cut-off unit for transmitting the unit and the remote access device as it is; A reset control unit which controls the power cutoff unit to block the currently supplied power primarily and then initializes the current power supply state so that power to be supplied next is supplied; And And a power control unit for supplying power to the reset control unit when the power supply state is initialized by the reset control unit and the power supply is not instantaneously performed. The method of claim 7, wherein Remote meter reading system characterized in that the power line communication (PLC) between the magnetic meter and the magnetic mic. The method of claim 7, wherein The central control unit, A function for controlling data communication through the communication network by embedding its own TCP / IP; Converting the protocol of the electronic meter (mother meter, magnetic meter) into a standard protocol and controlling it to communicate; The meter reading data is transmitted from the electronic meter (mother meter, magnetic meter) at the request of the remote meter reading server and relayed to the remote meter reading server or from the electronic meter (mother meter, meter). Storing and periodically transmitting the meter reading data to the remote meter reading server; When the communication with a plurality of communication networks, it is possible to preferentially select a communication network that can communicate in an optimal condition and to control the data communication to the communication network, A remote meter reading system comprising a function of controlling the operation state of the remote meter reading modem to be displayed on the status display. The method according to any one of claims 1 to 10, The embedded system in each of the central control unit and the microcomputer remote meter reading system characterized in that to update the internal program from the remote using the terminal.

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