Remote Concentrated Meter Reading System On Power Line

With the development of economy, the consumption of electrical power has greatly increased. Because of the great amount and widespread of the power consumers, the workload of meter reading becomes burdensome. Remote Concentrated Meter Reading System is a good solution for this problem. AMRS can help us reduce the workload of meter reading, improve work efficiency and realize the management automatization.At present, two schemes are applied in RCMRS. The conventional scheme is based on the special transmission line. In this scheme, special transmission lines are laid to transmit the signals, which greatly enhance the stability of communication. However, the exorbitant cost of laying special lines and maintenance, great workload and difficulty in construction prevent it from popularization. The other scheme is based on the electrical power line, which makes use of the power line as transmission media. On the contrary to the former scheme, the overall cost of this scheme is fairly low, whereas, the stability of communication is unwarranted.Technique of transmitting data via power line(PL), a new technique developed in recent years, is used to automotive 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. The system has been put into use, the result has proved its high stability and reliability.