Electric energy meter communication interface load capacity test system

Abstract

The invention provides an electric energy meter communication interface load capacity test system which comprises an alternating current-direct current test power supply, a communication module, a ripple test module, a direct current voltage detection module, a direct current detection module, a load switching control module, a test load and a host computer. The alternating current-direct current test power supply powers the test system and an electric energy meter through a power supply interface at the same time. The communication module, the ripple test module, the direct current voltage detection module, the direct current detection module, the load switching control module and the test load are respectively bidirectionally connected with the host computer. The ripple test module, the direct current voltage detection module, the direct current detection module, the load switching control module and the test load respectively communicate with the electric energy meter through a communication interface of the communication module. According to the invention, the test complexity is considered; by using communication connection, electrical connection and test connection, different test equipment and tested equipment are associated; and the test requirements of relevant standards are considered, so that the test system has advancement and module adaptability.

Description

technical field [0001] The invention relates to a test method, in particular to a load capacity test system for a communication interface of an electric energy meter. Background technique [0002] At present, China is building an electricity consumption information collection system. The electricity consumption information collection system consists of a master station, collection terminals, and electricity meters. Due to the large scale of the system, the communication modules and communication protocols of domestic terminal manufacturers are developed by the manufacturers themselves. The equipment operates independently of each other, and the energy meter corresponds to the communication unit one by one. The power supply requirements and load requirements of the energy meter are customized and optimized for the matching communication unit, so the original requirements for the quality of the power supply and power drive capability are not high. . [0003] Nowadays, it is r...

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Problems solved by technology

[0005] In order to solve the problem of data communication reliability of the communication module during the construction and operation of the electricity information collection system, and ensure that the communication interface of the energy meter has a certain load capacity function, according to Q/GDW1355-2013 "Single-phase smart energy meter type specification", Q /GDW1356-2013 "Type Specification for Three-phase

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