Low-voltage Power Line Carrier Automatic Meter Reading System

Technique of transmitting data via power line (PL),a new technique developed in recent years,is used to automatize the free collecting system in public service and the management of uptown service 。This article discussed the advantage ,disadvantage and the current state of the power line carrier communication。The advantage ,method and current state of using spread spectrum technique in power line communication are discussed。Then the characteristic of low voltage power network was also compendious analyzed。In this paper ,after introducing the principle of SSC,design of hardware and software of the system are been discussed。This system has been put into use,the result has proved its high stability and reliability...