Evolution of supervisory control systems for water sewage plants

摘要

A quarter of a century has passed since control systems using computers were first installed in public facilities. From now on, the level of requirements demanded of control systems will rise in line with their role as a core technology for wide-area management of public facilities, including unmanned facilities. With the introduction of information technology (IT) to control systems progressing in recent years, safe and robust operations as well as timely and flexible utilization of plant data and operating information must be realized for control systems. This paper outlines these technological trends, using the TOSWACS-V series control system.