摘要
研究了RS232C接口电气特性和DCS系统网络的工作特性,分析了并发帧碰撞发生机理及其导致的帧错误类型,定义了多主通信的帧格式和纠错方法,完成了并发帧碰撞侦听和纠错机制设计,实现了DCS系统中的即插拔和多主通信。
The circuit and topology of RS232C interface are investigated to reveal the mechanism of multiple callings from terminals, and the errors from a collision are studied. The calling strategy and frame formats for data communication, registering and quitting are designed to listen and identify a collision out of two or more calling occurred simultaneously. It shows that the communication strategy of Multiple Callings from terminals to central computer with RS232C protocol is feasible and reliable.
出处
《计算机工程》
CAS
CSCD
北大核心
2005年第23期200-202,共3页
Computer Engineering
基金
国家自然科学基金资助项目(60172037)
暨南大学引进人才研究基金资助项目
作者简介
王博（1966-），男，博士后、副教授，主研方向：计算机远程通信与控制。E-mail：twb@jnu．edu．cn
潘泉，教授、博导。
