用户端可查询用电量的IC卡电表的设计

The Design of IC Card Ammeter for the User to Read the Consumption Electricity

目前的非接触式IC卡电表,主要完成用户购电充值、用户剩余度数为一定值时拉闸报警和为零时的拉闸控制,但用户IC卡电表系统中没有记录历史月份用电量,也不具备用户在自家电表上查询剩余电量和历史月份用电量的功能,给用户及时充值和了解用电情况带来不便。本文结合我们的开发实例,主要介绍具有查询历史月份用电量和剩余电量的非接触式IC卡电表系统的实现。

At present, in IC card ammeter system there are two main functions .One is that it is convenient for the user to use electricity, and the other is that electricity supply is stopped automatically when the consumption of electricity is zero. But in the user＂ s system , there is no such function that the user can not read how much electricity has been consumed every month, how much electricity is left, and when money should be added to the IC card . For the convenience of the user , this paper aims at solving this problem by introducing a new function of IC card ammeter, which will make the user use it more conveniently