Test system for low-voltage power line carrier module

Abstract

The invention discloses a test system for a low-voltage power line carrier module. The test system comprises a 220V alternating-current mains supply, a power management unit, a singlechip system, a carrier module test clamp and a carrier reading controller; the alternating-current mains supply provides a working voltage for the power management unit, and provides a carrier channel for low-voltage power line carrier; the power management unit provides +12V working power for the carrier module and +5V / 3.3V working power for the singlechip system, and meanwhile, provides mains supply isolating output power for the carrier module; the singlechip system provides multiple paths of exchange data required for testing the carrier module; the carrier module test clamp comprises a multi-path carrier module test interface connected with the tested carrier module; and the carrier reading controller is used for reading the interactive data of the tested carrier module and sending the interactive data to an upper computer. The test system can be used for quickly and accurately testing the carrier module, meets the production requirement, reduces the fatigue strength of workers, improves the production efficiency, and improves the first pass yield of single assembly.

Description

technical field [0001] The invention relates to a smart meter test device, in particular to a test system for a low-voltage power line carrier module, which belongs to the technical field of power line carrier communication. Background technique [0002] Power line carrier communication is a unique communication method in the electric power sector. This communication method is more suitable for the dispatching of the power system, the data collection of the power terminal and the operation of the power system. The low-voltage power line carrier communication uses the power line as the transmission medium. Due to the strong structure of the power line, it is more reliable to use the power line as the communication medium. [0003] Since the power line mainly transmits electric energy for electric equipment, its characteristics are difficult to directly meet the requirements of carrier communication in many aspects. Due to the many unknown electrical loads connected to the po...

AI Technical Summary

Problems solved by technology

With the large-scale promotion and use of the low-voltage power line carrier method, the production line test supporting pressure in the production and processing plant is increasing, and the original complete machine assembly supporting test is far from meeting the production needs.

The traditional test method is to insert the low-voltage power line carrier modules one by one into the base meter with carrier function, and test one by one. After the test is completed, they are unplugged one by one and assembled. If the module is tested, it is necessary to work overtime, and the production cycle cannot be reached, and the pass-through rate of one-time assembly cannot be guaranteed.

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