摘要
一台锅炉在工作过程中 ,要完成诸如上料、温度控制、除渣等工作。当多台锅炉工作需要集中控制时 ,每台锅炉的各部分的工作都由下位机控制。下位机除接受本地控制外 ,还需要将自己的工作状态回报给上位机。接受上位机指令 ,实现远程控制。以一台锅炉除渣下位机的控制为例 ,说明除渣下位机如何完成自己本身的工作和接受上位机指令 ,从而构成计算机的集散控制系统。
When in running,boilers need to be managed and controlled centrally in addition to implement their own functions respectively. So control units of boilers not only must implement functions such as loading control, temperature control and dregs outlet control etc.,meanwhile, they are also needed to implement functions of communicating with supervisor computer and executing the task that supervisor demands to achieve remote control. This paper cites a boiler's control unit as example to illustrate how the control unit implements above functions, and how the whole system works as a distributed control system.
出处
《基础自动化》
CSCD
2001年第3期31-33,共3页
Basic Automation
关键词
锅炉
除渣机
计算机控制系统
单片机
boiler
supervisor computer
remote control
distributed control system