集中式绝缘在线监测系统中的通信技术  

Port Communication Technology Applied in Centralized On-Line Insulation Monitoring System

作　　者：易小羽[1] 关根志[1] 张凯[1] 江国琪[1] 

机构地区：[1]武汉大学电气工程学院,武汉430072

出　　处：《高电压技术》2005年第1期50-52,共3页High Voltage Engineering

摘　　要：介绍了集中式绝缘在线监测系统中上下位机间的端口通信(包括计算机与多路选通开关间的并口通信及与数字波形采集装置间的串口通信)的基本原理、设计方法及程序实现。并口通信在VC中用一个函数语句即可实现,编程简单、运行稳定可靠;串口通信实质上是上位机和单片机AT89C51间的通信,单片机用查询发送、中断接收 的通信方式,上位机通信用Win32API函数开发,在动态链接库中实现,可很好地满足系统的实时性要求。The port communication technology applied in the centralized on-line insulation monitoring system is consists of two types. One is the parallel port communication to connect computer to the multiplexer channel switch. The other is the serial port communication to communicate between computer and the data sampling device. The parallel communication is easy to realize by using a single function in VC. The serial port communication is essentially the communication between PC and the single chip computer AT89C51. The AT89C51 communicates by querying sending and interrupting receiving mode, the PC communicates by developing of Win32 API function and realization in DLL. The communication can satisfy the requirement of real time well.

关 键 词：在线监测 并口通信 通信事件 

分 类 号：TM764[电气工程—电力系统及自动化]