监测系统远距离多机通信

LONG DISTANCE COMMUNICATION IN MONITORING SYSTEMS

介绍了一种基于二线制的数据传输系统的结构原理。该方法应用于实时性要求不严格的多现场数据采集系统中，是一个比较好的选择。最近进行的水压力测量系统中采用此方法实现了一台PC机与多台现场单片机远距离通信。

introduced is the structural principle of a data transmission system based on two lines. This system is especiallygood in the multiple-site data acquisition system which has no time limitation. During the water pressure measurement testcarried out recently. this method was used in the system to make possible the long distance communication between a PC andseveral site single-chip microcomputers.