A Telecontrol Net Based on Power Line Carrier Communication

摘要

This paper introduces a telecontrol net in which low-voltage power line carrier transceiver PL2101 was used. Measures of advancing communication reliability such as net identification code and CRC technique were used, so the net can watch 255 field bittern pumps within 2 kilometer at 500 bps with no transmission relay circuit. The paper discusses the communications data frames and presents hardware & software design of the field controller used in a saltern bittern pumping system too.