新型电话计时计费装置检定仪设计

Design on new type verification instrument used to verify telephone timing and charging device

采用微型计算机与微控制器相结合的方案,设计了一种新型电话计时计费装置检定仪,以微控制器为核心的单片机系统作为外置设备,通过串行通信接口与微型计算机进行信息交换.应用软件的设计采用可视化编程语言VC++6.0实现.该检定仪具有计时精度高、计价准确、操作简单、使用方便、用户界面友好等特点.

A new type of verification instrument used to verify telephone timing and charging device is designed by means of combination of a micro-computer and a micro-controller. The verification instrument＇s external interface device based on a micro-controller exchangeing information with a micro-computer which realizes human-machine interface through a serial communication interface. And the application software of the instrument is developed with VC ＋ ＋ 6.0 program language. So the instrument owns such advantages as timing very precisely, charging very correctly, being operated simply, being used easily, possessing user-friendly interface and soon.