集散控制系统的最新技术特点与展望

The hi-tech features of a distributed control system and its development trend

集散控制系统(DCS)因其具有控制和危险分散、管理和显示集中的显著特点仍被作为当今工业过程控制领域的主要控制系统之一。该文在对DCS的基本体系结构和技术特点进行必要阐述的基础上,描述了DCS的发展现状,介绍了最新DCS的技术特点,列举了和FCS比较DCS存在的问题,最后对DCS的发展作出了包括和FCS结合,打造更加完善的综合系统;出现更多满足中小用户需求的中小型DCS;具有无线通信功能;智能控制、智能诊断等四方面的展望。

Nowadays, the distributed control system is still used as one of the main process control systems in industry because it has the features of distributed control and disperse hazard and centralized management and demonstration. This paper summarizes its basic system structure and technical characteristics, describes its present situation and its latest technical features, and points out its faults in comparison with FCS. The paper has absorbed the superiorities of FCS so as to develop a more effective integrated DCS in a medium or small size to meet the needs of users. Such a DCS should be provided with the functions of wireless communication, intelligent control, intelligent diagnosis, etc.