The Study Of The System Of The Full Electronic Watt-hour Meter Of Prepayment

The electric industry has been developed at very fast speed, it brings forward higher requires to the electricity management. It hopes that the user can prepay electricity before using it , time-sharing electrovalency, copying the datas from watt-hour meters and charging can be cayyied out automatically . In these cases the full electronic watt-hour meter of prepayment of IC card emerges, it can be meet the demands of the management above.Based on consulting a lot of literature and investigating ,the paper discussed the principle of the full electronic watt-hour meter of prepayment of IC card, the standard and the technology of IC card. It also discussed the design of the watt-hour meter, the type of the energy measurement chips and the technique problems of the control program.The software of selling electricity management system can carry out not only the management to the IC card, but also the comprehensive management of various fees. The paper explained the analysis of function, module partition, program structure, input and output, interface and structure design of the software in detail. It stressed the critical technology of each module.The program tool of this system is MicroSoft Visual Basic 6.0, the database software is MicroSoft Access。 .Therefor the system of the full electronic watt-hour meter of prepayment has widely application prospect.