The Functional Analysis of Distributed Control System Operators
Abstract
China's thermal power plant computer applications can be broadly divided into two stages, first computer surveillance system (DAS) stage and the second is computer monitoring system, that is, to use computer-based DCS stage. Only the former functions of data collection, which both control so that the computer application to the vertical development, the level of automation to improve plant plays a decisive role. As a very important means of control, distributed control system (DCS) in the power industry has been widely used in automation, its hardware operation by the management of workstations, on-site control stations and communication networks.
DCS control system which station operators to monitor production and production control in an important position. Early DCS station operators there are many problems, because the drive station operators have moving parts, and if the keyboard, mouse in the running when you are prone to repeated failures. CRT24-hour continuous operation is relatively easy to damage. In the long run after the aging, monitors fault, DCS equipment spare parts suppliers a single, expensive problems, a serious impact on production. In order to station operators more suitable for long production run, the paper through the operator at the basic structure, the development process, functions, and network analysis and overview, drawn open, and with a human face of the common man-machine interface operators Points more suitable for modern production to the conclusion
Key words: DCS, operator stations, man-machine interface, network of operators
