The design of wireless three-phase Prepayment Energy Meter

The paper designs a Wireless Prepayment Energy Meter, which is used to measure three-phase energy with 50/60Hz rated frequency. It realized the functions of prepayment management and load control that pay of energy first & use it afterwards. The data can be exchanged between Energy meters and Energy supplying department by RF cards. The information can be transmitted in a non-contact way. In this way, the purpose of automatic identification can be achieved. The paper describes hardware design firstly, and then software design.