单相电子式预付费电度表的实验研究  

Experimental research of single-phase electronic prepaid watt-hour meter

作　　者：季晓芳[1] 张春来[2] 

机构地区：[1]中国电子科技集团公司第38研究所,合肥230031 [2]安徽水利水电职业技术学院,合肥231603

出　　处：《电子测试》2010年第6期45-49,共5页Electronic Test

摘　　要：基于单片机AT89C52对单相电子式预付费电度表系统进行了系统的设计,AT89C52单片机为控制核心,预付费电度表的硬件电路包括电能计量电路、控制电路、显示电路、IC卡接口、电能存储器、掉电检测和电源几大模块等组成。电能计量系统是完成电能测量、电能值显示、超负荷断电等功能;预付费系统主要是利用IC卡实现先付费,再用电。前者主要追求可靠性,后者要求安全性高。该系统经过实验,安全可靠,功耗小,成本低,符合设计要求。The electronic prepaid watt-hour meter system based on AT89C51 single-chip is designed in the paper. AT89C52 single-chip microcomputer is controlling core. the hardware of The electronic prepaid watt-hour meter includes power measurement circuit, control circuit, display circuit, IC card interface, power memory, power- down detection and power supply modules and so on.. The function of energy measurement system includes energy measurement, energy values show and overload power ; prepaid IC card system is mainly used to achieve the first payment, and then electricity. The former is the pursuit of reliability, the latter requires high security. The system has been tested safe, reliable, low power consumption, low cost, meets the design requirements.

关 键 词：AT89C52 SM9903 IC卡 电度表 

分 类 号：TM933.4[电气工程—电力电子与电力传动]