摘要
问答式运动规约规定远动报文数据以异步方式传输,因而报文的检错校验工作需用软件计算来完成.本文通过对远动规约中几种不同报文格式的分析,推导出对应报文的软件校验算法,计算出相应的余数表,并介绍在远动系统中实现的方法及软件结构.
According to the telecontrol polling communication protocol, which the messages are transmited by using asynchronous transmission protocol, the cyclic redundancy ckeck (CRC) must be calculated by software. In this paper, the algorithms for two kinds of messages cyclic redundancy check are deduced respectively, and the relative residue tables are given. The method of CRC realization and the archriture of the software in a remote control system are introdued.
出处
《华东交通大学学报》
1992年第4期244-251,共8页
Journal of East China Jiaotong University
关键词
远动
软件
Telecontrol
Polling Protocol
CRC