摘要
论述了在热电厂供热系统中采用无线通讯的方法以及实现数据采集和控制的系统组成.简要介绍了数传电台的基本工作原理和数据传输过程.并根据系统数据采集和控制要求,设计了RS485硬件接口电路.详细介绍了在上位机中,采用MCGS组芯软件情况下,为保证上、下位机之间的正常数据通讯,所需要的RS232通讯时的接口软件的编程方法,并给出了一段参考主程序.系统功能完善,结构灵活,可靠性和安全性强,实现了供热自动控制功能.
The principle and technical method of telecommunication for the heat supply system of thermal power plants are introduced briefly; and the data collecting and controlling in the system are discussed too. Based on the requirement of data-collecting and control, it also discusses in brief the basic principle of data-transmitting process and the designing of RS485 interface circuit. To insure the normal data communication between the host computer and slave computer by adopting MCGS software, the technical details and the main program design of RS232 have been analyzed emphatically.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2004年第4期117-120,共4页
Engineering Journal of Wuhan University
