Modern telecommunication methods have many impacts on manufacturing, and tele service has become one of the strategic approaches to realize the ideas of a flexible manufacturing system. Monitoring and maintenance of ...Modern telecommunication methods have many impacts on manufacturing, and tele service has become one of the strategic approaches to realize the ideas of a flexible manufacturing system. Monitoring and maintenance of production lines from the remote monitor center is an important application of such techniques. This paper presents a typical model of tele service systems and discusses the underlying challenges. RMMST (remote monitoring and maintenance system testbed), based on PC PLC and their networks which are used widely in production lines, is presented in detail as a concrete example. With the support of digital technique, RMMST can be used in the monitoring and maintenance of remote production lines conveniently.展开更多
现代大型火力发电厂,除了采用由分散控制系统(Distributed Control System,DCS)构成的用于控制机、电、炉运行的主控系统之外,还采用了很多主要由可编程序控制器PLC构成的辅控系统。下面以某发电公司2X300MW火电机组辅网程控系统为例对...现代大型火力发电厂,除了采用由分散控制系统(Distributed Control System,DCS)构成的用于控制机、电、炉运行的主控系统之外,还采用了很多主要由可编程序控制器PLC构成的辅控系统。下面以某发电公司2X300MW火电机组辅网程控系统为例对辅控网的设计原则、网络结构、数据的采集方式进行分析和讨论。展开更多
文摘Modern telecommunication methods have many impacts on manufacturing, and tele service has become one of the strategic approaches to realize the ideas of a flexible manufacturing system. Monitoring and maintenance of production lines from the remote monitor center is an important application of such techniques. This paper presents a typical model of tele service systems and discusses the underlying challenges. RMMST (remote monitoring and maintenance system testbed), based on PC PLC and their networks which are used widely in production lines, is presented in detail as a concrete example. With the support of digital technique, RMMST can be used in the monitoring and maintenance of remote production lines conveniently.
文摘现代大型火力发电厂,除了采用由分散控制系统(Distributed Control System,DCS)构成的用于控制机、电、炉运行的主控系统之外,还采用了很多主要由可编程序控制器PLC构成的辅控系统。下面以某发电公司2X300MW火电机组辅网程控系统为例对辅控网的设计原则、网络结构、数据的采集方式进行分析和讨论。
