电能信息自动采集终端的设计  

Design of Automatic Acquisition Terminal for Electric Energy

作　　者：刘秋霞[1] 杨桂林[1] 

机构地区：[1]菏泽学院,山东菏泽274015

出　　处：《现代电子技术》2009年第11期107-109,共3页Modern Electronics Technique

基　　金：菏泽学院自然科学基金资助课题(XY07WL01);山东省高等学校实验技术基金资助课题(S04W138)

摘　　要：给出一种性能优良、有效、简便的电能信息自动采集终端,该终端以电力载波的方式与采集站通信。采用双CPU共用数据存储器和双RS 232通信接口技术解决了脉冲计数和电力线载波通信的实时性问题;采用脉冲处理硬件电路、先进的调制解调器和CRC循环冗余编码解码技术,实现了成本低,可靠性高,抗干扰性强的脉冲采集和远程通信功能。文中介绍了系统的功能、硬件组成和软件设计,探讨了为提高该系统可靠性而采取的一些抗干扰措施。通过长期测试与现场应用证明,该电能信息自动采集终端的设计是可行的,具有进一步推广应用的价值。A good,efficient and simple automatic acquisition terminal for electric energy is designed in this paper,it communicates with collection devices through electric power line carrier. Using dual - CPU shared data - memory and double RS 232 serial communication ports technology,the real - time problems of pulse count and power line carrier communication are resolved. Using pulse processing hardware circuit, new modem and Cyclic Redundancy Check（CRC） coding and decoding technique,the pulse collection and long- distance communication with low cost,high reliability and capability can be realized. The function,hardware structure and software design are introduced,measures of anti- interference used in the terminal system to improve reliability of the system are fully discussed. The measurement and application results show the correctness of this design,the automatic acquisition terminal is worth spreading.

关 键 词：终端 电度表 电力线载波 双CPU ST7538 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]