基于NEC单片机的智能电表控制系统设计  

Control System Design for Single-phase Intelligent Electric Meter Based on NEC Single-chip Computer

作　　者：陈斌斌[1] 孙卫华[2] 杜志平[2] 

机构地区：[1]北京大学医学部,100191 [2]北京物资学院,101149

出　　处：《电子测试》2015年第2期16-18,共3页Electronic Test

摘　　要：设计了一种能够实现远程控制的单相智能电表。硬件部分包括NEC78F0411单片机外围电路设计,电能计量芯片外围电路设计和通讯模块电路设计,同时也进行了计量模块的软件设计。能够对电能精确地计量,电量和功率的实时显示,单片机和外部存储器的读写,通过485总线与上位机通讯,进行远程控制,包括购电、抄表、定时通断电、超过功率断电等功能。电表硬件设计简单,功能完善,软件部分能进行正负电能的计量。解决了大功率电器和空调的智能识别,在某些高校得到了较好的应用。A kind of single-phase intelligent electric meter for remote control was designed.Firstly, peripheral circuits including NEC78F0411 single-chip computer,chip for measuring of electric energy and chip for communication have been designed,then,software for measuring of electric energy has been developed.It can measure electric energy accurately,real-time display electric energy and power,read and write from EEPROM to single-chip computer,remote control through RS-485 bus to communicate with host computer,including power purchase,automatic meter reading,timing switch on-off electricity,forced interruption when overpower.Its hardware was designed uncomplicatedly.It has complete function and can calculate positive and negative energy.Intelligent distinguish air-conditioner from high power electric appliances has been solved,it has been put into use in some universities successfully.

关 键 词：单相智能电表 单片机 电量计量 远程控制 

分 类 号：TM933.4[电气工程—电力电子与电力传动]