Schematic Design of Field Test Method for Low-Voltage Power Line Carrier Communication

The harsh electro-magnetic environment of low power line results in the unstable communication quality in the process of remote-reading of energy meter. A schematic of field test method for low-voltage power line carrier communication, which is very useful for the field testing of the low-voltage concentrated meter reading system, is designed in this paper. By switching the carrier communication circuit, all kinds of the corresponding field parameters for each power line carrier communication scheme are automatically extracted and analyzed. The schematic design could detect the power line carrier point-to-point communication quality. The design proposed in this paper is suitable for the testing and debugging the field terminals of low-voltage power line carrier concentrated meter reading system, and is very useful for the detection and analysis of field power line carrier communicator environment.