Fault data recording device and recording method of electric power metering automation terminal

Abstract

The invention provides a recording device and a recording method for fault data of a power measuring automatic terminal. Communication is performed between fault data recording equipment and the power measuring automatic terminal through two serial data lines. The recording device comprises a control signal monitoring module, a data signal monitoring module and a data arrangement module, wherein the control signal monitoring module is used for receiving the data transmitted by a first serial data line at fixed communicated rate through a control monitoring port, and recording a time log of each data packet, the data signal monitoring module is used for receiving the data transmitted by a second serial data line at variational communicated rate through a data monitoring port, and recording the time log of each data packet, and the data arrangement module is used for obtaining the data according to the receiving sequence of each data packet. The recording method adopts the recording device to record the data of the power measuring automatic terminal. The recording device and the recording method have the advantage that the communication data between the power measuring automatic terminal and an electric meter is accurately recorded, so as to quickly overhaul the power measuring automatic terminal.

Description

technical field [0001] The invention relates to the field of electric power metering automation, in particular to an electric power metering automation terminal fault data recording device and a fault data recording method. Background technique [0002] According to the definition of State Grid Corporation's enterprise standard "Q / GDW1372. There are four types of meter reading system concentrators and plant power collection terminals. Electric energy metering automation is the core and most critical technology of smart grid, and it is the focus and foothold of building smart grid. [0003] According to the technical standards of State Grid Corporation and China Southern Power Grid Corporation, such as figure 1 As shown, the electric power metering automation terminal 11 communicates with the local electric meter 10 through multiple local RS485 serial communication ports, collects and centrally processes the data of the local electric meter 10, and uploads it to the automat...

AI Technical Summary

Problems solved by technology

[0004] However, there are many problems in the current troubleshooting process of the power metering automation terminal 11 as follows: First, the RS485 serial communication port of the power metering automation terminal 11 generally uses a dynamic jump rate to communicate with the meter 10, and there is currently no tool or device that can Monitor the RS485 serial bus whose transmission rate changes dynamically

Secondly, the power metering automation terminal 11 works in the mode of "multiple collections and one upload", that is, the local communication of the power metering automation terminal 11 is a long-term continuous process, and many problems cannot be solved by maintenance personnel on site in a short time. Monitoring and analysis to locate communication faults brings great difficulties to on-site troubleshooting

[0005] In view of the above situation, people have proposed various solutions, the common point is to provide a general RS485 serial port tester to detect various communication ports, but these communication port testers generally have imperfect tests, shallow Layer analysis and data monitoring are not in place, and the purpose of on-site troubleshooting cannot be achieved

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