Design of prepayment implementation and its data exchange security protection based on Power Metering Automatic system

This paper describes a prepayment implementation method based on Power Metering Automatic system. This method realizes prepaid functions such as electricity charge owing warning and remote power cutting, by timing Acquiring power consumption information, real-time monitoring remaining power capacity or electric cost and cooperating with marketing management system using load management terminal and concentrator. While for the complexity of GPRS/CDMA communication and on-site electricity environment, the paper makes a number of specific measures designed to ensure data exchange security and stability of prepaid functions.