Development of Single Phase Smart Meter Based on R5F212B8
According to the bidding requirements of State Grid Corporation of China and published standards on single phase smart meter as well as the safety certification standards,a design scheme for single phase smart meter based on R5F212B is introduced.In this paper,the realization method of the smart meter system,the main hardware circuit,flow diagram of software program and function are presented in detail.The single phase smart meter has the function of safety certification,PLC communication,tiered pricing for electricity and other functions.All the communication data conform with the DL/T645 2007 communication protocol.The single phase smart meter based on this design has been put into operation for ten thousand,which are mainly applied in Jiamusi area.Through system testing,the smart meter is proved to be reliable in working and meets the current market requirements.