CN105044657B - Gate energy meter monitoring system - Google Patents

Abstract

The invention relates to a gateway electric energy meter monitoring system capable of enabling a gateway meter evaluation device to obtain more data sources. The gateway electric energy meter monitoring system includes a master station server, a data collector, an industrial computer, and a gateway meter evaluation device. Each gateway meter evaluation device is connected to a related gateway meter component. The splitter component divides the data of the gateway table into two paths, one path is passed to the data collector, and the other path is passed to the gateway meter evaluation device, so that when the data collector collects the gateway table data, the gateway meter evaluation device simultaneously obtains a In the idle time of the data collector bus, the gateway meter evaluation device can collect other data of the gateway meter again, so that the gateway meter evaluation device can obtain more data sources, and the final analysis results will be more comprehensive. In turn, the gateway table can be comprehensively monitored. It is suitable for promotion and application in the field of substation on-line monitoring technology.

Description

Gateway electric energy meter monitoring system

technical field

The invention relates to the technical field of on-line monitoring of substations, in particular to a monitoring system for electric energy meters at gateways.

Background technique

With the deepening of power system reform, electric energy measurement has become the focus of attention of various stakeholders in the electric power market and the society. Establishing a scientific, standardized, intensive and efficient electric energy measurement management model is an inevitable trend to comply with the development of the power grid and ensure accurate and reliable electric energy measurement. Electric energy measurement management is an important link in the production and operation management of electric power enterprises and the safe operation of the power grid. Its technology and management level not only affect the development of the electric power industry and the image of electric power enterprises, but also affect the accuracy and fairness of trade settlement, involving the interests of the majority of electric power customers. . However, there are still the following problems in the management of electric energy metering devices: First, the traditional manual on-site calibration mode commonly used at present has low work efficiency, cannot monitor the device in real time and give timely warning of faults, and it is difficult to effectively control and reduce the occurrence of metering faults ;Secondly, there is a lack of online differential analysis of the loss of the entire network, and it is impossible to find out the loss point in time and take effective measures to control and optimize it, resulting in a serious loss of economic benefits of the power grid; moreover, it is impossible to know the site of the electric energy metering device in time by using traditional methods. In addition, the operation and maintenance management of electric energy metering devices lacks effective technical management means, and it is impossible to rotate electric energy metering devices on time. As a result, grid trade settlement cannot be accurate and fair, which seriously affects the image of grid companies.

Based on the above problems, the construction of the monitoring system of the energy meter at the gateway by using the application technology can directly improve the daily work efficiency of the technicians in the supervision and management of the measurement at the gateway, and save a lot of inspection costs; In the management of metering devices, it plays an important role in the analysis of power grid power quality.

Existing gateway electric energy meter monitoring system comprises master station server, data collector, is connected with a plurality of industrial computers on the master station server, is connected with a plurality of gateway meter evaluation devices on each industrial computer, and each gateway meter evaluation device The device is connected with a related meter assembly, which is composed of multiple gateway meters, the gateway meter and the gateway meter evaluation device are connected to the power grid, and the data collector collects the data of the gateway meter in real time and uploads it to the user information collection The server of the system, the gate table evaluation device collects the gate table data in real time and performs data statistics and comparison on the collected data, uploads the statistical data and comparison results to the corresponding industrial computer, and the industrial computer uploads the acquired statistical data and comparison results to the master station server; the master station server performs remote monitoring and status evaluation on the gateway meter according to the obtained statistical data and comparison results. Some electricity consumption information collection systems are set up on the basis of the data collector and the gateway meter evaluation device to collect the data of the gateway meter, and the gateway meter has only one communication port, so the gateway meter evaluation device needs to borrow the bus and data of the data collector The collectors share one communication port, and the gateway meter evaluation device can only use the bus to collect data during the idle time of the bus, and the collector itself is a one-to-many device. Usually, one data collector should correspond to at least six gateway meters, and the data collector When collecting the data of the gateway table, the address command of the gateway table is sent to different gateway tables in turn to copy the data of different gateway tables. Only when the data collector finishes collecting all the data of the gateway table, the bus connected to the data collector will Idle, which leads to very limited idle time on the bus of the data collector, which cannot meet the requirements of the gateway meter evaluation device to borrow the data collector bus, resulting in the gateway meter evaluation device can only obtain limited data sources, and the data obtained by the gateway meter evaluation device Limited will lead to the final analysis results are not comprehensive enough to conduct a comprehensive monitoring of the gateway table.

Contents of the invention

The technical problem to be solved by the present invention is to provide a gateway electric energy meter monitoring system that enables the gateway meter evaluation device to obtain more data sources.

The technical solution adopted by the present invention to solve the technical problem is: the monitoring system of the electric energy meter at the gate includes a main station server and a data collector, and a plurality of industrial computers are connected to the main station server, and a plurality of industrial computers are connected to each industrial computer. A gateway meter evaluation device, each of the gateway meter evaluation devices is connected with a related gateway meter assembly, and the gateway meter assembly is composed of a plurality of gateway meters, and the gateway meter and the gateway meter evaluation device are connected to the power network, and the data acquisition The gateway meter data is collected by the device in real time and uploaded to the server of the user information collection system. The gateway meter evaluation device collects the gateway meter data in real time and performs data statistics and comparison on the collected data, and uploads the statistical data and comparison results to the corresponding industrial control system. computer, and the industrial computer uploads the obtained statistical data and comparison results to the master station server; the master station server performs remote monitoring and status evaluation on the gateway table according to the obtained statistical data and comparison results, and each of the gateway meter evaluation devices is connected with the A splitter component is arranged between the gateway table components, and the data collector is connected to the splitter component; the splitter component divides the data of the gateway table into two paths, one path is passed to the data collector, and the other path is passed to the gateway meter evaluation device.

Further, the gate table assembly is composed of six gate tables, namely the first gate table, the second gate table, the third gate table, the fourth gate table, the fifth gate table, and the sixth gate table. The splitter assembly includes a first splitter A, a second splitter A, a third splitter A, a fourth splitter A, a fifth splitter A, and a sixth splitter A, and the first splitter A has three Serial ports, wherein one serial port is connected with the first gateway meter, and the other two serial ports are connected with the data collector and the gateway meter evaluation device respectively; the second branch device A has three serial ports, one of which is connected with the second gateway meter, The other two serial ports are respectively connected with the data collector and the gateway meter evaluation device; the third branch device A has three serial ports, one of which is connected with the third gateway meter, and the other two serial ports are respectively connected with the data collector and the gateway meter The evaluation device is connected; the fourth branch device A has three serial ports, one of which is connected to the fourth gateway meter, and the other two serial ports are respectively connected to the data collector and the gateway meter evaluation device; the fifth branch device A has Three serial ports, one of which is connected to the fifth gateway meter, and the other two serial ports are respectively connected to the data collector and the gateway meter evaluation device; the sixth branch device A has three serial ports, one of which is connected to the sixth gateway meter The other two serial ports are respectively connected to the data collector and the gateway meter evaluation device.

Further, the gate table assembly is composed of six gate tables, namely the first gate table, the second gate table, the third gate table, the fourth gate table, the fifth gate table, and the sixth gate table. The splitter assembly includes a first splitter B and a second splitter B, and the first splitter B has seven serial ports, wherein three serial ports are respectively connected to the first gateway table, the second gateway table, and the third gateway table, Three of the other four serial ports are connected to the data collector, and the last serial port is connected to the gateway meter evaluation device; the second branch device B has seven serial ports, and three of them are connected to the fourth gateway meter, the fifth serial port respectively. The gate meter and the sixth gate meter are connected, three of the other four serial ports are connected to the data collector, and the last serial port is connected to the gate meter evaluation device.

Further, the gate table assembly is composed of six gate tables, namely the first gate table, the second gate table, the third gate table, the fourth gate table, the fifth gate table, and the sixth gate table. The splitter assembly includes a splitter C, and the splitter C has seven serial ports, three of which are connected to the data collector, and the other four serial ports are respectively connected to the gateway meter evaluation device, the second gateway meter, the fourth gateway meter, and the second gateway meter. The six gate tables are connected in series, the first gate table is connected in series with the second gate table, the third pass table is connected in series with the fourth pass table, and the fifth pass table is connected in series with the sixth pass table.

Further, the gate table assembly is composed of six gate tables, namely the first gate table, the second gate table, the third gate table, the fourth gate table, the fifth gate table, and the sixth gate table. The splitter assembly includes a splitter D, and the splitter D has three serial ports, and the three serial ports are respectively connected with the sixth gateway meter, the gateway meter evaluation device, and the data collector, and the first gateway meter, the second gateway Table, the third pass table, the fourth pass table, the fifth pass table, and the sixth pass table are connected in series in sequence.

Further, it also includes a PT acquisition device, the PT acquisition device is connected to the gateway meter evaluation device, and the PT acquisition device collects the voltage data of the voltage transformer PT and sends it back to the gateway meter evaluation device.

Further, it also includes a CT acquisition device, the CT acquisition device is connected to the gateway meter evaluation device, and the CT acquisition device collects the current data of the current transformer CT and sends it back to the gateway meter evaluation device.

Further, the gateway meter evaluation device includes a switching value monitoring module, a PT/CT communication module, an Ethernet master station communication module, a real-time clock module, an RS232 on-site debugging module, a local storage module, a power supply module, a core management module and multiple A gateway meter evaluation unit, the switch monitoring module, PT/CT communication module, Ethernet master station communication module, real-time clock module, RS232 on-site debugging module, local storage module, power supply module are connected to the core management module respectively, each The gate meter evaluation unit corresponds to a gate meter, and each gate meter evaluation unit includes an RS485 gate meter communication module, a pulse quantity acquisition module, an AC sampling module, and a metering module, and the RS485 gate meter communication module, a pulse quantity acquisition module, an AC The sampling modules are respectively connected to the metering modules, and the metering modules of each evaluation unit are connected to the core management module.

Further, the gateway table evaluation device also includes an Ethernet PT/CT transparent transmission module, and the Ethernet PT/CT transparent transmission module is connected to the core management module.

Beneficial effects of the present invention: by setting up a splitter assembly between each gateway meter evaluation device and the gateway meter assembly of the gateway electric energy meter monitoring system, the data collector is connected to the splitter assembly, when the data collector collects the gateway meter data, when the gateway table data passes through the splitter assembly, the splitter assembly divides the gateway table data into two paths, one path is passed to the data collector, and the other path is passed to the gateway meter evaluation device, so that the gateway table is collected in the data collector When the data is collected, the gateway meter evaluation device will obtain a copy of the gateway meter data at the same time, and during the idle time of the data collector bus, the gateway meter evaluation device can collect other data of the gateway meter again, so that the gateway meter evaluation device can obtain more data The more data sources, the more accurate the final analysis results will be, and then the gate meter can be comprehensively monitored, the efficiency of equipment inspection can be improved, and the full coverage of metering device inspection can be achieved.

Description of drawings

Fig. 1 is the block diagram of the structure of the monitoring system of the gate electric energy meter of the present invention;

Fig. 2 is the structural block diagram of the first kind of splitter assembly of the gateway watt-hour meter monitoring system of the present invention;

Fig. 3 is the block diagram of the structure of the second splitter assembly of the gateway electric energy meter monitoring system of the present invention;

Fig. 4 is the block diagram of the structure of the third branch device assembly of the gateway electric energy meter monitoring system of the present invention;

Fig. 5 is the structural block diagram of the fourth kind of splitter assembly of the gateway electric energy meter monitoring system of the present invention;

Fig. 6 is a structural block diagram of the gateway meter evaluation device of the gateway electric energy meter monitoring system of the present invention.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, this gateway electric energy meter monitoring system includes a main station server and a data collector. The main station server is connected with a plurality of industrial computers, and each industrial computer is connected with a plurality of gateway meter evaluation devices. Each gateway meter evaluation device is connected with a related gateway meter assembly, the gateway meter assembly is composed of a plurality of gateway meters, the gateway meter and the gateway meter evaluation device are connected to the power network, and the data collector collects the gateway meter data in real time and Upload to the server of the user information collection system, the gateway meter evaluation device collects the gateway meter data in real time and performs data statistics and comparison on the collected data, and uploads the statistical data and comparison results to the corresponding industrial computer, and the industrial computer will obtain the obtained Statistical data and comparison results are uploaded to the main station server; the main station server performs remote monitoring and status evaluation on the gateway table according to the obtained statistical data and comparison results, and a A splitter component, the data collector is connected to the splitter component; the splitter component divides the gateway table data into two paths, one path is passed to the data collector, and the other path is passed to the gateway meter evaluation device. By setting up a splitter component between each gateway meter evaluation device and the gateway meter component of the gateway electric energy meter monitoring system, the data collector is connected to the splitter component, and when the data collector collects the gateway meter data, the gateway meter data When passing through the brancher assembly, the brancher assembly divides the data of the gateway table into two paths, one path is passed to the data collector, and the other path is passed to the gateway meter evaluation device, so that when the data collector collects the gateway table data, the gateway meter evaluation device At the same time, a piece of data of the gate meter can be obtained, and when the bus of the data collector is idle, the gate meter evaluation device can collect other data of the gate meter again, so that the gate meter evaluation device can obtain more data sources, and the more data sources , the final analysis results will be more accurate, and then the gate meter can be comprehensively monitored, the equipment inspection efficiency can be improved, and the full coverage of the metering device inspection can be realized.

In the above embodiment, the gate table component can be implemented in various ways, as long as the gate table data can be divided into two, usually, the gate table component is composed of six gate tables, respectively One gate table, the second gate table, the third gate table, the fourth gate table, the fifth gate table, and the sixth gate table, as an optimal mode: as shown in Figure 2, the brancher assembly includes the first brancher A, the second splitter A, the third splitter A, the fourth splitter A, the fifth splitter A, the sixth splitter A, the first splitter A has three serial ports, one of which is connected to the first The gateway meter is connected, and the other two serial ports are respectively connected with the data collector and the gateway meter evaluation device; the second branch device A has three serial ports, one of which is connected with the second gateway meter, and the other two serial ports are connected with the data acquisition device respectively. device, the gateway meter evaluation device; the third branch device A has three serial ports, one of which is connected to the third gateway meter, and the other two serial ports are respectively connected to the data collector and the gateway meter evaluation device; the fourth The splitter A has three serial ports, one of which is connected to the fourth gateway table, and the other two serial ports are respectively connected to the data collector and the gateway meter evaluation device; the fifth splitter A has three serial ports, one of which is connected to the The fifth gate table is connected, and the other two serial ports are connected with the data collector and the gate table evaluation device respectively; the sixth branch device A has three serial ports, one of which is connected with the sixth gate table, and the other two serial ports are connected with the sixth gate table respectively. The data collector and the gateway meter evaluation device are connected. The structure of the splitter component configures a splitter for each gateway table, so the gateway meter evaluation device needs 6 serial ports to realize the data collection of the gateway table, and each splitter A needs three serial ports, and the structure of the splitter component makes each The acquisition channels between each gateway meter and the data collector are independent and do not affect each other. At the same time, the acquisition channels between each gateway meter and the gateway meter evaluation device are also independent and do not affect each other. Because the data collector is Send address commands to the six gateway tables in turn to collect the data of the gateway table, that is, at the same time, the data collector only collects the data of one of the gateway tables. If the current data collector collects the data of the first gateway table, then the data The collector only occupies the bus connected to the first gate table, and the buses connected to the second gate table, the third gate table, the fourth gate table, the fifth gate table, and the sixth gate table are all in an idle state. The meter evaluation device can use the gateway meter bus in the idle state to collect the data of the second gateway meter, the third gateway meter, the fourth gateway meter, the fifth gateway meter, and the sixth gateway meter. At the same time, the data collected by the data collector When the gate table data passes through the brancher, the brancher divides the first gate table data into two paths, one is passed to the data collector, and the other is passed to the gate table evaluation device, so that the data collector collects the first gate table data At the same time, the gateway meter evaluation device can simultaneously obtain a copy of the first gateway meter data, and when the data collector collects the first gateway meter data, the gateway meter evaluation device can simultaneously collect the data of other gateway meters, so that the gateway meter evaluation device can The more data sources are obtained, the more data sources there are, the more comprehensive the final analysis results will be, and then the gateway table can be comprehensively monitored.

As a second preferred mode, as shown in Figure 3, the splitter assembly includes a first splitter B and a second splitter B, and the first splitter B has seven serial ports, of which three serial ports are connected to The first gate table, the second gate table, and the third gate table are connected, and three of the other four serial ports are connected with the data collector, and the last serial port is connected with the gate table evaluation device; the second branch device B has seven Three serial ports, three of which are connected to the fourth gate meter, fifth gate meter, and sixth gate meter respectively, three of the other four serial ports are connected to the data collector, and the last serial port is connected to the gate meter evaluation device. The structure of the splitter component is to configure a splitter for every three gateway meters, so the gateway meter evaluation device needs 2 serial ports to realize the data collection of the gateway meter, and each splitter B needs seven serial ports, which can save the gateway meter evaluation The serial port resources of the device, the structure of the branch device makes the acquisition channel between each gateway table and the data collector independent and does not affect each other, because the data collector sends address instructions to the six gateway tables in sequence for the gateway table Data collection, that is, at the same time, the data collector only collects the data of one of the gateway tables. If the current data collector collects the data of the first gateway table, the data collector only occupies the bus connected to the first gateway table. The buses connected to the second gate table, the third gate table, the fourth gate table, the fifth gate table, and the sixth gate table are all in an idle state, so that the gate table evaluation device can use the idle state. Gather the data of the second gate table, the third gate table, the fourth gate table, the fifth gate table, and the sixth gate table. At the same time, when the first gate table data collected by the data collector passes through the branch device, the branch device will The first pass table data is divided into two paths, one is passed to the data collector, and the other is passed to the pass table evaluation device, so that when the data collector collects the first pass table data, the pass table evaluation device simultaneously obtains a copy of the first pass table When the data collector collects the data of the first gate table, the gate table evaluation device can collect the data of other gate tables at the same time, so that the gate table evaluation device can obtain more data sources, the more data sources, and finally The analysis results are more comprehensive, and then the gateway table can be comprehensively monitored.

As a third preferred mode, as shown in Figure 4, the splitter assembly includes a splitter C, and the splitter C has seven serial ports, of which three serial ports are connected with the data collector, and the other four serial ports are connected with the data collector respectively. The pass table evaluation device, the second pass table, the fourth pass table and the sixth pass table are connected, the first pass table is connected in series with the second pass table, the third pass table is connected in series with the fourth pass table, The fifth pass table is connected in series with the sixth pass table. In this scheme, the first gateway meter and the second gateway meter share one RS485 line, and the data of the gateway meter is divided into two paths with the splitter C, one path is connected to the data collector, and the other path is connected to the gateway meter evaluation device. The third gate meter and the fourth gate meter share one RS485 line, and the branch C is used to divide the data of the gate meter into two routes, one route is connected to the data collector, the other route is connected to the gate meter evaluation device, the fifth gate meter and the sixth The gateway meter shares one RS485 line, and the branch meter C is used to divide the data of the gateway meter into two channels, one is connected to the data collector, and the other is connected to the gateway meter evaluation device, so that the gateway meter evaluation device only needs one serial port to realize the gateway For the data collection of the meter, the splitter C needs 7 serial ports, which can greatly save the serial port resources of the gateway meter evaluation device. The splitter structure makes the acquisition channel between the first or second gateway meter and the data collector, the third The acquisition channel between the gateway meter or the fourth gateway meter and the data collector, the acquisition channel between the fifth gateway meter or the sixth gateway meter and the data collector are independent of each other and do not affect each other. Each gateway table sends an address command to collect the data of the gateway table, that is, at the same time, the data collector only collects the data of one of the gateway tables. If the current data collector collects the data of the first gateway table or the second gateway table, Then the data collector only occupies the bus connected to the first gate table and the second gate table, the bus connected to the third gate table or the fourth gate table, and the bus connected to the fifth gate table or the sixth gate table are all in the In the idle state, the gateway meter evaluation device can use the gateway meter bus in the idle state to collect the data of the third gateway meter, the fourth gateway meter, the fifth gateway meter, and the sixth gateway meter. At the same time, the first When the data of the gate table or the second gate table passes through the splitter, the splitter divides the data of the first gate table or the second gate table into two paths, one is passed to the data collector, and the other is passed to the gateway table evaluation device, In this way, when the data collector collects the first pass table data or the second pass table data, the pass table evaluation device simultaneously obtains a copy of the first pass table data or the second pass table data, while the data collector collects the first pass table data or the second pass table data, the pass table evaluation device can simultaneously collect the data of other pass tables except the first pass table and the second pass table, so that the pass table evaluation device can obtain more data sources, and the more data sources More, the final analysis results will be more comprehensive, and then the gateway table can be comprehensively monitored.

As a fourth preferred mode: as shown in Figure 5, the splitter assembly includes a splitter D, the splitter D has three serial ports, and the three serial ports are respectively connected to the sixth gateway meter, the gateway meter evaluation device, The data collectors are connected, and the first pass table, the second pass table, the third pass table, the fourth pass table, the fifth pass table, and the sixth pass table are connected in series in sequence, so that the first pass table, the second pass table The table, the third gate table, the fourth gate table, the fifth gate table, and the sixth gate table share one RS485 line, and the branch device D is used to divide the data of the gate table into two channels, one is connected to the data collector, and the other is connected to the The gateway meter evaluation device, so the gateway meter evaluation device only needs 1 serial port to realize the data collection of the gateway meter, and the branch device D needs 3 serial ports, which can greatly save the serial port resources of the gateway meter evaluation device and the branch device.

When the system needs to monitor PT and CT, a PT acquisition device and a CT acquisition device can be installed. If it does not need to monitor PT and CT, a gateway meter evaluation device can be installed separately. The PT acquisition device is connected to the gate meter evaluation device, the PT acquisition device collects the voltage data of the voltage transformer PT and sends it back to the gate meter evaluation device, and the gate meter evaluation device is based on the PT voltage data and the collected gate meter side The voltage data monitors the voltage drop of the secondary circuit. The CT acquisition device is connected to the gate meter evaluation device. The CT acquisition device collects the current data of the current transformer CT and sends it back to the gate meter evaluation device. The gate meter evaluation device The device monitors the PT load and CT load of the secondary circuit according to the voltage and current data collected by the PT acquisition device and the CT acquisition device.

As shown in Figure 6, the gateway meter evaluation device includes a switching value monitoring module, a PT/CT communication module, an Ethernet master station communication module, a real-time clock module, an RS232 on-site debugging module, a local storage module, a power supply module, and a core management module and a plurality of gateway meter evaluation units, the switch monitoring module, PT/CT communication module, Ethernet master station communication module, real-time clock module, RS232 on-site debugging module, local storage module, and power supply module are respectively connected to the core management module, Each gate meter evaluation unit corresponds to a gate meter, and each gate meter evaluation unit includes an RS485 gate meter communication module, a pulse quantity acquisition module, an AC sampling module, and a metering module, and the RS485 gate meter communication module and a pulse quantity acquisition module and the AC sampling module are respectively connected to the metering module, and the metering module of each evaluation unit is connected to the core management module. The gateway meter evaluation device sets up a plurality of gateway meter evaluation units, each gateway meter evaluation unit corresponds to a gateway meter independently, and realizes 1-to-1 processing, and each gateway meter evaluation unit does not interfere with each other, which gateway meter evaluation unit If there is a problem, just calibrate and configure the direct factory module, and replace the corresponding gateway meter evaluation unit on site. It will not affect other gateway meter evaluation units. Other gateway meter evaluation units can still be used, and the utilization rate of the equipment is high. At the same time Each gateway meter evaluation unit has a metering module. The metering module is implemented by a metering chip. The metering module counts and compares the data of the gateway meter evaluation unit, and sends the statistical and compared data results to the core management module. The computing load of the core management module is reduced, and the processing efficiency of the entire gateway table evaluation device is improved.

The core management module adopts MCU, and the MCU selects the metering module chip to be communicated through the chip selection CS, completes the data interaction, and then communicates with the next metering module chip. The conversion speed of the chip communication of different metering modules is relatively fast, so real-time communication of data can be realized.

The AC sampling module is responsible for the AC analog acquisition of one loop, one of which is 1 voltage and 1 current.

The RS485 gateway meter communication module is responsible for the data acquisition of 6 gateway meters, and obtains the voltage, current, active power, reactive power, apparent power, active energy, reactive energy, frequency, phase angle and other power parameters of each gateway meter, Obtain data through RS485 bus communication.

The pulse amount acquisition module realizes the pulse amount acquisition, which is mainly used for electric energy statistics and comparison. By setting the corresponding relationship between each channel number and the gateway meter, the difference and error between the pulse power (gate meter) and the collected power (line power) are counted and compared.

The PT/CT communication module realizes communication with CT equipment and PT equipment to realize data transmission. The communication is realized by RS485 or ZIGBEE wireless communication. Time-sharing management is performed through synchronous clocks, and data interaction is performed sequentially within a unique time slice.

The Ethernet master station communication module realizes data interaction with the master station server. The master station server uses this module to set the parameters of the equipment, monitor the status, sample data and obtain raw data for evaluation. Use RJ45 interface. Designed as a TCP/IP service, as a client in the C/S structure, it is designated to connect to the master server.

The real-time clock module realizes the operation of the device clock time and the retention of power-off time. It is the basic unit of system time management. The real-time clock module includes a GPS module and an RTC chip, wherein the GPS is used for clock synchronization, and the RTC chip can obtain calendars, clocks, etc.

The RS232 on-site debugging module is mainly responsible for completing the on-site status indication through the indicator light, and realizing the on-site maintenance operation of the PC through the serial port, including setting parameters, reading data, etc.

The local storage module is mainly used to save device configuration parameters, save sampling data and calibration parameters, save the first 10 frozen data in history, and save events.

The switching value monitoring module realizes 6-way switching value collection. It is mainly used for sampling of line switch signals.

In addition, the gateway table evaluation device also includes an Ethernet PT/CT transparent transmission module, and the Ethernet PT/CT transparent transmission module is connected to the core management module. This module is mainly used for data interaction between different gateway meter evaluation devices. When the energy meter sends data to the master station, the data is first transmitted to the gateway meter evaluation device, and then sent to the industrial computer by the gateway meter evaluation device. All the gateway meter evaluation devices and energy meters are managed, and the messages are judged at the same time. If it needs to be sent to the designated gateway meter evaluation device, it will be sent by the Ethernet PT/CT transparent transmission module. The message sent by the gateway meter to the gateway meter evaluation device contains the address of the meter, and the message sent by the gateway meter evaluation device to the industrial computer contains the address of the gateway meter evaluation device. The industrial computer needs to evaluate the address of the gateway meter and the gateway meter. The address of the device is judged to determine the gateway table of which address needs to be forwarded to other gateway table evaluation devices.

Claims (9)

1. The gateway electric energy meter monitoring system includes a master station server and a data collector. The master station server is connected with a plurality of industrial computers, and each industrial computer is connected with a plurality of gateway meter evaluation devices. Each of the gateway meter evaluation devices The device is connected with a related meter assembly, which is composed of multiple gateway meters, the gateway meter and the gateway meter evaluation device are connected to the power grid, and the data collector collects the data of the gateway meter in real time and uploads it to the user information collection The server of the system, the gateway meter evaluation device collects the gateway meter data in real time and performs data statistics and comparison on the collected data, and uploads the statistical data and comparison results to the corresponding industrial computer, and the industrial computer will obtain the statistical data and comparison results Upload to the master station server; the master station server performs remote monitoring and status evaluation on the gate meter according to the obtained statistical data and comparison results, and is characterized in that: a branch is set between each of the gate meter evaluation devices and the gate meter component The data collector is connected to the splitter component; the splitter component divides the gateway table data into two paths, one path is passed to the data collector, and the other path is passed to the gateway meter evaluation device. 2. The gateway electric energy meter monitoring system according to claim 1, characterized in that: the gateway meter assembly is composed of six gateway meters, which are respectively the first gateway meter, the second gateway meter, the third gateway meter, the fourth A gateway table, a fifth gateway table, and a sixth gateway table, the brancher assembly includes a first brancher A, a second brancher A, a third brancher A, a fourth brancher A, a fifth brancher A, a Six branching devices A, the first branching device A has three serial ports, one of which is connected to the first gateway meter, and the other two serial ports are connected to the data collector and the gateway meter evaluation device respectively; the second branching device A It has three serial ports, one of which is connected to the second gateway table, and the other two serial ports are respectively connected to the data collector and the gateway meter evaluation device; the third branch device A has three serial ports, one of which is connected to the third gateway The other two serial ports are connected with the data collector and the gateway meter evaluation device respectively; the fourth branch device A has three serial ports, one of which is connected with the fourth gateway meter, and the other two serial ports are connected with the data collector respectively. , the gateway meter evaluation device; the fifth branch device A has three serial ports, one of which is connected to the fifth gateway meter, and the other two serial ports are respectively connected to the data collector and the gateway meter evaluation device; the sixth branch Device A has three serial ports, one of which is connected to the sixth gateway meter, and the other two serial ports are respectively connected to the data collector and the gateway meter evaluation device. 3. The gateway electric energy meter monitoring system according to claim 1, characterized in that: the gateway meter assembly is composed of six gateway meters, which are respectively the first gateway meter, the second gateway meter, the third gateway meter, the fourth The gateway table, the fifth gateway table, and the sixth gateway table, the splitter assembly includes a first splitter B and a second splitter B, and the first splitter B has seven serial ports, of which three serial ports are respectively connected to the second splitter B. A gate table, the second gate table, and the third gate table are connected, three of the other four serial ports are connected with the data collector, and the last serial port is connected with the gate table evaluation device; the second branch B has seven Serial ports, three of which are connected to the fourth gate meter, fifth gate meter, and sixth gate meter respectively, three of the other four serial ports are connected to the data collector, and the last serial port is connected to the gate meter evaluation device. 4. The gateway electric energy meter monitoring system according to claim 1, characterized in that: the gateway meter assembly is composed of six gateway meters, which are respectively the first gateway meter, the second gateway meter, the third gateway meter, the fourth The gate table, the fifth gate table, and the sixth gate table, the splitter assembly includes a splitter C, and the splitter C has seven serial ports, of which three serial ports are connected with the data collector, and the other four serial ports are respectively connected with the gate The meter evaluation device, the second pass table, the fourth pass table, and the sixth pass table are connected, the first pass table is connected in series with the second pass table, the third pass table is connected in series with the fourth pass table, and the first pass table is connected in series with the fourth pass table. The five-pass table is connected in series with the sixth pass table. 5. The gateway electric energy meter monitoring system according to claim 1, characterized in that: the gateway meter assembly is composed of six gateway meters, which are respectively the first gateway meter, the second gateway meter, the third gateway meter, the fourth The gate table, the fifth gate table, and the sixth gate table, the splitter assembly includes a splitter D, and the splitter D has three serial ports, and the three serial ports are respectively connected to the sixth gate table, the gate table evaluation device, The data collectors are connected, and the first gate meter, the second gate meter, the third gate meter, the fourth gate meter, the fifth gate meter and the sixth gate meter are connected in series in sequence. 6. The gateway electric energy meter monitoring system according to claim 1, characterized in that: it also includes a PT acquisition device, the PT acquisition device is connected with the gateway meter evaluation device, and the PT acquisition device collects the voltage data of the voltage transformer PT And send it back to the gateway table evaluation device. 7. The gateway electric energy meter monitoring system according to claim 6, characterized in that: it also includes a CT acquisition device, the CT acquisition device is connected with the gateway meter evaluation device, and the CT acquisition device collects the current data of the current transformer CT And send it back to the gateway table evaluation device. 8. The gateway electric energy meter monitoring system according to claim 7, characterized in that: the gateway meter evaluation device includes a switching value monitoring module, a PT/CT communication module, an Ethernet master station communication module, a real-time clock module, and an RS232 on-site Debugging module, local storage module, power supply module, core management module and multiple gateway meter evaluation units, the switch monitoring module, PT/CT communication module, Ethernet master station communication module, real-time clock module, RS232 on-site debugging module, The local storage module and the power supply module are respectively connected to the core management module. Each gateway meter evaluation unit corresponds to a gateway meter. Each gateway meter evaluation unit includes an RS485 gateway meter communication module, a pulse quantity acquisition module, an AC sampling module, and a metering module , the RS485 gateway meter communication module, the pulse amount acquisition module, and the AC sampling module are respectively connected to the metering module, and the metering module of each evaluation unit is connected to the core management module. 9. The gateway electric energy meter monitoring system according to claim 8, characterized in that: the gateway meter evaluation device also includes an Ethernet PT/CT transparent transmission module, and the Ethernet PT/CT transparent transmission module and the core management module connected.