微机控制预付费智能电表系统的研制

Development of prepary charging intelligent system of an electric meter controlled by computer

设计了一种基于87C51单片机的IC卡预付费电表,阐述了单相IC卡电度表的工作原理、设计方法和硬件电路并讨论了其工作过程,同时给出了程序的主要工作过程流程图和设计思想.实际应用表明,该系统计量精度高、抗干扰性好,且结构简单.

An electric meter with prepary in IC card based on the 87C51 singlechip is designed.Its working principle,design method and hardware circuit is given and its working process is discussed.The implemented electric meter has simple structure,high measurement precision and reliability.