KR100830968B1 - The installing management method for remote electronic watt hour meter system - Google Patents

Abstract

An installation and management method of a low-pressure remote meter system is provided to reduce the time and cost for maintenance and repair works by effectively checking the operation state between a meter and PTE(Power Data Transmission Equipment) in installing the low-pressure remote meter system. An installation and management method of a low-pressure remote meter system is composed of steps for transmitting a signal to a DCU(Data Collection Unit) through broadcasting by a PLC(Programmable Logic Controller) modem or a wireless zigbee modem installed in a meter, by selecting an installation mode in PTE in installing the remote meter system; periodically transmitting a test message through broadcasting from the DCU to the PLC modem or the wireless zigbee modem of all meters; transmitting the test message to a signal line transmitting a signal to the meter through a UART(Universal Asynchronous Receiver Transmitter) communication port from the PLC modem or the wireless zigbee modem; periodically inputting the test message to a monitoring control microprocessor of a monitoring control unit by monitoring a UART signal in the monitoring control microprocessor in installing the remote meter system; and displaying the PLC or wireless zigbee communication state with the PTE through an LED(Light Emitting Diode) in the monitoring control microprocessor of the monitoring control unit.

Description

The installing management method for remote electronic watt hour meter system

According to the present invention, when installing the meter of the low-pressure remote metering system, the installer can check the remote metering operation, thereby increasing the efficiency at the time of installation, and reducing the installation cost and the management cost, and thus can smoothly grasp the operating state of the metering system. When the low pressure remote metering system is installed, it is possible to efficiently check the operation status between the meter and the power data transmission equipment (PTE), which reduces the time and cost of maintenance as well as the installation of the remote metering system. The meter reading system automatically resets PLC modem or wireless Zigbee modem which has a poor function and network configuration. If a problem occurs during use, the metering system can solve the problem by itself and the initial installation and maintenance of the remote metering system. For the overall operation and in part the instrument number or MAC (Me) You can test the performance of the meter module by sending data to the modem of the desired instrument via dia Access Control) Address.When installing the meter for the first time, the installer installs the meter and PLC or wireless ZigBee with the data transmission unit (PTE) installed. When the modem is installed, it transmits a control signal to indicate the operating status so that the installer can know the communication status between the instrument and the modem immediately after installing the meter, so that the installation or maintenance can be performed efficiently. After installing the meter by installing the meter by installing the LED control port on the modem control part, the installer can immediately know the status of the indicator LED for meter communication after the PLC modem or the wireless Zigbee modem is communicating with the data collection unit (DCU). To reduce installation and maintenance costs. Built-in function to control hardware by remote control by adding a function to control hardware by connecting power control device to reset port or power input line of power monitoring system in CDMA modem control unit. This is a technology for installing and managing a low pressure remote meter reading system that can facilitate the maintenance by having the function to remotely handle the trouble in the meter reading system.

In the case of the conventional mechanical wattmeter, a magnet is attached to the register part and a reed switch around it to detect a pulse according to the rotation of the register. Only the value of the accumulated effective power can be read. Since there may be a difference in the weighing value of the electronic part to detect the pulse, there is a problem that causes the error during the remote meter reading.

In addition, the remote metering module used in the conventional electronic electricity meter is not standardized, so there is no compatibility among manufacturers, so even when a communication interface modem is connected to the meter, the meter information is automatically read from the meter so that the manufacturer of the meter is not known. There is a problem that can not effectively cope with the signal required by the remote meter reading, thereby reducing the metering error that can occur during the meter reading, and each company has to manage the modem separately.

In addition, when the meter of the low pressure remote metering system is installed, the installer cannot confirm the remote metering operation, thus increasing the efficiency of the installation, and it requires a lot of installation and management costs. There is a problem in that it is not possible to efficiently check the operation state between the data transmission devices (PTE) can reduce the time and cost of installation as well as maintenance.

Therefore, the present invention has been conceived to solve the above problems, and when installing the meter of the low-pressure remote metering system, the installer can check the remote metering operation, thereby increasing the efficiency at the time of installation, as well as reducing the installation cost and management cost. The purpose of the present invention is to provide a method for installing and managing a low pressure remote metering system that can grasp the operating state of the metering system.

Another object of the present invention is to efficiently check the operating state between the meter and the data transmission device (Power Data Transmission Equipment (PTE)) when installing the low pressure remote meter reading system can reduce the time and cost of installation as well as maintenance The present invention provides a method for installing and managing a low pressure remote metering system.

Another object of the present invention is a meter reading system that automatically resets a PLC modem or a wireless Zigbee modem that is not properly initialized and network configuration of the remote meter reading system, if the problem occurs during use, the meter reading system will solve the problem itself. The present invention provides a method for installing and managing a low pressure remote metering system.

Another object of the present invention is to test the performance of the meter module by transmitting data to the modem of the desired instrument through the overall operation and part number or MAC (Media Access Control) Address for the initial installation and maintenance of the remote meter reading system. The present invention provides a method for installing and managing a low pressure remote metering system that can be used.

Another object of the present invention is that when the installer installs the meter for the first time, when the installer installs the meter and the PLC or the wireless Zigbee modem in a state in which the data transmission device (PTE) is installed, the installer immediately transmits a control signal so that the installer knows the operation status The present invention provides a method for installing and managing a low voltage remote metering system that enables the user to know the status of the instrument and modem so that maintenance can be performed efficiently.

Another object of the present invention is to install the LED on the PLC modem control unit or wireless Zigbee modem control unit or by installing the LED on the display window of the meter after the installer installs the meter PLC modem or wireless Zigbee modem and the data acquisition unit (DCU) It is to provide a method of installing and managing a low-voltage remote meter reading system that the installer can immediately know whether the communication is smooth, so that the installation of the system can be easy to reduce the installation and maintenance costs.

Another object of the present invention is to add a function to control the hardware by connecting a device capable of controlling the power supply to the reset port or power input line of the power monitoring system in the HFC modem or CDMA modem control unit, the entire meter reading system by remote control It is possible to turn on / off and provide a method to install and manage a low pressure remote meter system that can facilitate the maintenance by having the function to remotely control the trouble in the meter system.

The method for installing and managing the low pressure remote meter reading system according to a preferred embodiment of the present invention for achieving the above object is a PLC or wireless installed in the meter by selecting the installation mode to the data transmission device (PTE) when installing the remote meter reading system Transmitting a signal to a data collection device (DCU) by a Zigbee modem by Broadcasting; Periodically transmitting, by the data collection device (DCU), a message "TEST" to a PLC modem or a wireless Zigbee modem of all the meters through broadcasting; Transmitting from the PLC modem or the wireless Zigbee modem to a signal line transmitted to a meter through a UART port; Monitoring the UART signal when installed in a supervisory control microprocessor of the supervisory control unit and periodically receiving a message “TEST” from the supervisory control microprocessor of the supervisory control unit; And a PLC communication state or a wireless Zigbee communication state is displayed through the light emitting diodes (LEDs).

In the present invention, the light emitting diode (LED) is a common LED different from the chip LED after the installer installs the meter, the installer immediately whether the PLC modem or wireless Zigbee modem communication with the data collection unit (DCU) is the installer immediately It can be seen that it is easy to install the system, characterized in that it can reduce the installation cost and maintenance costs.

In the present invention, in the step of receiving an input of the message "TEST" from the monitoring control microprocessor of the monitoring control unit, when the signal TEST is not input periodically, it is reset by the PLC modem control unit or the wireless Zigbee modem control unit It is characterized in that it further comprises to facilitate the PLC communication or wireless communication by initializing the PLC modem control unit or the wireless Zigbee modem control unit in hardware.

In the present invention, in the step of receiving the message "TEST" from the monitoring control microprocessor of the monitoring control unit, using a PLC or wireless Zigbee communication network function, PLC modem or wireless Zigbee modem itself data transmission device (PTE) Monitor configuration of Carrier Sense terminal or Data Link output for a few minutes by network configuration, and if there is no input of Data Link or Data Carrier Sense for a few minutes, reset terminal of PLC modem chip or wireless Zigbee modem chip. It may further include securing the reliability of the meter reading modem by giving a "LOW" signal for several hundred mSec and maintaining the "High" state again in hardware.

The method of installing and managing the low pressure remote meter reading system according to the present invention has the following effects.

First, the present invention, when installing the meter of the low-pressure remote metering system, the installer can check the remote metering operation, thereby increasing the efficiency at the time of installation as well as reducing the installation cost and management costs to smoothly grasp the operating state of the metering system have.

Second, the present invention can efficiently check the operating state between the meter and the data transmission device (Power Data Transmission Equipment (PTE)) when installing the low-pressure remote meter reading system can reduce the time and cost of installation as well as maintenance.

Third, the present invention is a metering system for automatically resetting the initialization function and network configuration of the remote meter reading system or the wireless Zigbee (Zigbee) modem, so if the problem occurs during use, the metering system can solve the problem itself. have.

Fourth, the present invention can test the performance of the meter module by transmitting data to the modem of the desired instrument through the overall operation and part number or MAC (Media Access Control) Address for the initial installation and maintenance of the remote meter reading system. have.

Fifth, the present invention transmits a control signal so that the installer knows the operation state when the installer installs the meter and the PLC or the wireless Zigbee modem in a state where the data transmission device (PTE) is installed when the meter is installed for the first time. Maintenance can be efficiently performed by providing immediate status of the instrument and modem.

Sixth, the present invention is equipped with an LED on the PLC modem control unit or wireless Zigbee modem control unit after the installer installs the meter, the installer immediately knows whether the PLC modem or wireless Zigbee modem communication with the data collection unit (DCU) is smooth system The installation cost and maintenance cost can be reduced by facilitating the installation of the device.

Seventh, the present invention is connected to the reset port or the power input line of the power monitoring system in the HFC modem or CDMA modem control unit to add a function to control the hardware to control the entire meter system by remote control It can be turned on and off, so it can be convenient for maintenance by having the function to remotely handle the trouble in the meter reading system.

Looking at the preferred embodiment of the present invention together with the accompanying drawings as follows, when it is determined that the detailed description of the known art or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention The description will be omitted, and the following terms are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom, and the definition thereof is a method of installing and managing a low pressure remote meter reading system according to the present invention. It should be made based on the contents throughout the specification to describe.

1 is a view showing the configuration of a low pressure remote meter reading system according to an embodiment of the present invention, Figure 2 is a view showing the configuration of a CDMA or HFC modem control unit constituting a low pressure remote meter reading system according to an embodiment of the present invention 3 is a view showing the configuration of a PLC modem control unit constituting a low pressure remote meter reading system according to an embodiment of the present invention, Figure 4 is a wireless ZigBee configuring a low pressure remote meter reading system according to an embodiment of the present invention It is a figure which shows the structure of a modem control part.

As shown in Figures 1 to 4, the low-voltage remote meter reading system according to an embodiment of the present invention, the communication with the lower end of the meter reading communication using TCP / IP communication using the HFC modem 30 or CDMA wireless communication 40 It consists of a front end preprocessor (FEP) server 10 and the WEB server 20 to control signals from the FEP server 10 or WEB server 20 to the HFC modem 30 or CDMA modem 40 A meter reading upper end portion 80 having a giving function; The input / output port of the general microcomputer so that the HFC modem control unit 31 or the CDMA modem control unit 41 receives the control signal from the meter reading upper end unit 80 to control the upper end unit to the reset end of the DCU control unit 51. Is set as an output by a CDMA communication control command, and the control signal is connected to a reset terminal of the data collection device (DCU) 50 to reset the data transmission device (DCU) 50 through wireless data communication. A PLC modem in the initial program state of the data collection device (DCU) 50 by resetting the data transmission device (PTE) 90, which is the lower end of the meter reading, and the hardware of the data collection device (DCU) 50. A function of controlling hardware by connecting an element (FET or RELAY) capable of controlling power supply to a reset port or a power input line of the networking unit 60 and the power monitoring system 70, and remotely by controlling the hardware. Furnace system A meter reading lower end 90, which is a data transmission device having a function of turning on / off the whole; It is provided.

Looking at the function of the technical means constituting the low-pressure remote meter reading system in detail as follows.

The meter reading upper end 80 communicates with the meter reading lower end 90, which is made of TCP / IP communication using an HFC modem 30 or CDMA wireless communication 40, and a front end preprocessor (FEP) server 10. ) And the WEB server 20 to control signals from the FEP server or the WEB server to the HFC modem or the CDMA modem. Herein, the remote meter reading server 100 communicating with the meter reading upper end 80 and the meter reading lower end 90 performs data communication with the FEP server 10 through HFC or CDMA, and with the meter ID of the customer to be read. Front end preprocessor (FEP) server 10 for inputting a MAC (Media Access Control) address of a communication interface module, a database (DB) of information of a meter to be read, and a meter information to be read The data is transmitted to the data collection device (DCU) 50 through.

The meter reading lower end 90, which is the data transmission device, controls the upper end at the reset end of the DCU control part 51 in the HFC modem control part 31 or the CDMA modem control part 41 which receives the control signal from the meter reading upper end part 80. A function to set the input / output port of a general microcomputer as an output by a CDMA communication control command so that the control signal is connected to the reset terminal of the data collection device (DCU) to reset the DCU through wireless data communication. PLC modem networking in the initial program state of the data collection unit (DCU) 50 by resetting the lower end of the data transmission unit (PTE) 90 and the hardware of the data collection unit (DCU) 50 A function of controlling hardware by connecting an element (FET or RELAY) capable of controlling power supply to a reset port or a power input line of the power monitoring system 70 and a remote control unit by controlling the hardware. It has the function to turn on / off the whole system by control. Here, the data collection device (DCU) 50 receives the metering control command signal from the metering server 100 to perform a metering action, and the communication interface module of the meter interprets the metering information to IR communication 111 with the meter 110. Read meter information and data related to meter reading to extract and store data such as active power, reactive power, cumulative maximum demand power, power factor, LP (Load Profile) provided by meter in advance. Collect the data. In this case, the data collection device (DCU) 50 is input by the MAC ADDRESS of the meter 110 and the meter ID transmission command, and is individually input to the DCU 50 through a wireless or wired meter installed in the customer. Through communication with the 110 is to collect data through the wire or wireless information related to the meter and information related to the use of the meter from the meter. In addition, the meter (watt-hour meter) 110 displays the meter reading data read by the wire (PLC) or wireless (Zigbee).

5 is a flow chart for installing and managing a low pressure remote meter reading system according to an embodiment of the present invention.

As shown in Figure 5, the flow of installing and managing the low-pressure remote meter reading system is as follows.

First, when the remote metering system is installed, the PLC modem 92 or the wireless Zigbee modem 91 installed in the meter by selecting the installation mode in the data transmission device (PTE) 90 to broadcast the signal to the data acquisition unit (DCU) ( 50) (S1). Then, the data collection device (DCU) 50 periodically transmits the message "TEST" to the PLC modem 92 or the wireless Zigbee modem 91 of all the meters 110 through broadcasting (S2). Thereafter, the PLC modem 92 or the wireless Zigbee modem 91 transmits the signal line 97-1 transmitted to the meter 110 through the UART communication port 97 (S3). Subsequently, the UART signal is monitored by the supervisory control microprocessor of the supervisory control unit 99 and periodically receives the message "TEST" from the supervisory control microprocessor of the supervisory control unit 99 (S4). In the step of receiving a message from the supervisory control microprocessor of the supervisory control unit 99, if the signal TEST is not input periodically, the PLC modem controller 94 or the wireless Zigbee modem controller 95 resets the PLC. The modem control unit 94 or wireless Zigbee modem control unit 95 is initialized in hardware to facilitate PLC communication or wireless communication (S4-1). In addition, in the step of receiving the message “TEST” from the monitoring control microprocessor of the monitoring control unit 99, the PLC modem 92 or the wireless Zigbee modem 91 transmits data by using a PLC or a wireless Zigbee communication network function. The network configuration of the device (PTE) 90 monitors the state of the Carrier Sense stage or the Data Link output for a few minutes, and if there is no input of the data link or data carrier sense for a few minutes, the PLC modem chip ( 96) Alternatively, the reset terminal of the wireless ZigBee modem chip 95 gives a "LOW" signal for several hundred mSec and maintains the "High" state again to initialize it in hardware to secure the reliability of the meter reading modem (S4-1). ').

Next, in the supervisory control microprocessor of the supervisory control unit 99, a data communication device (PTE) 90 and a PLC communication state or a wireless Zigbee communication state are displayed through the light emitting diodes (LEDs) 98 (S5). Here, the light emitting diode (LED) 98 uses a general LED different from the chip LED, and after the installer installs the meter, the PLC modem 92 or the wireless Zigbee modem 91 is connected to the data collection device (DCU) 50. The installer can immediately see if the communication is smooth, which facilitates the installation of the system, thereby reducing installation and maintenance costs.

As described above, various substitutions, modifications, and changes can be made by those skilled in the art without departing from the technical spirit of the present invention, and thus, the embodiments and the accompanying drawings are limited. It doesn't happen.

1 is a view showing the configuration of a low pressure remote meter reading system according to an embodiment of the present invention.

2 is a view showing the configuration of a CDMA or HFC modem control unit constituting a low-voltage remote meter reading system according to an embodiment of the present invention.

3 is a view showing the configuration of a PLC modem control unit constituting a low-voltage remote meter reading system according to an embodiment of the present invention.

4 is a view showing the configuration of a wireless Zigbee modem control unit constituting a low-voltage remote meter reading system according to an embodiment of the present invention.

5 is a flow chart for installing and managing a low pressure remote meter reading system according to an embodiment of the present invention.

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

10 ... FEP server 20 ... WEB server

30 ... HFC modem 40 ... CDMA modem (wireless communication)

50 ... Data Acquisition Unit (DCU) 60 ... PLC Modem (Wireless Zigbee) Networking Section

70 Power monitoring system 80 Meter reading

90 ... lower end of meter reading (data transmission device: PTE)

100 ... remote metering server 110 ... meter

31 ... HFC modem control unit 41 ... CDMA modem control unit

51 ... DCU Control Unit 91 ... Wireless Zigbee Modem

92 ... PLC Modem 93 ... Wireless Zigbee Modem Controls

94 ... PLC modem control unit 95 ... Wireless Zigbee modem chip

96 ... PLC modem chip 97 ... UART communication port

97-1 ... Signal Line 98 ... LED

99 ... monitoring control 111 ... IR communication

Claims (4)

In the method of installing and managing the low pressure remote meter system, Selecting an installation mode in a data transmission device (PTE) when installing a remote meter reading system and transmitting a signal to a data collection device (DCU) by broadcasting by a PLC modem or a wireless Zigbee modem installed in the meter; Periodically transmitting, by the data collection device (DCU), a message "TEST" to a PLC modem or a wireless Zigbee modem of all the meters through broadcasting; Transmitting from the PLC modem or the wireless Zigbee modem to a signal line transmitted to a meter through a UART communication port; Monitoring the UART signal when installed in a supervisory control microprocessor of the supervisory control unit and periodically receiving a message “TEST” from the supervisory control microprocessor of the supervisory control unit; In the supervisory control microprocessor of the supervisory control unit, a data communication device (PTE) and a PLC communication state or a wireless Zigbee communication state are displayed through a light emitting diode (LED). Way. The method of claim 1, The light emitting diode (LED) uses a general LED different from the chip LED, and after the installer installs the meter, the installer immediately knows whether the PLC modem or the wireless Zigbee modem communicates with the data collection unit (DCU). A method for installing and administering a low pressure remote meter reading system, comprising: making it easy to reduce installation and maintenance costs. The method of claim 1, In the step of receiving the message “TEST” from the monitoring control microprocessor of the monitoring control unit, if a signal of TEST is not periodically input, the controller is reset in the PLC modem control unit or the wireless zigbee modem control unit. And hardware initialization of the modem control unit to facilitate PLC communication or wireless communication. The method of claim 1, In the step of receiving the message “TEST” from the monitoring control microprocessor of the monitoring control unit, the PLC modem or the wireless Zigbee modem itself may use the PLC or the wireless Zigbee modem to configure its own data transmission device (PTE) network. If the status of the Carrier Sense stage or Data Link output is monitored by the supervisory control microprocessor of the supervisory control section, and there is no input of the data link or data carrier sense for a few minutes, the “LOW” on the reset terminal of the PLC modem chip or the wireless Zigbee modem chip A method of installing and administering a low voltage remote metering system further comprising securing the reliability of the meter metering modem by transmitting a signal for hundreds of msec and maintaining the “High” state again.

Images