2 Direction selector for controllers' action

Abstract

An expert system for selecting the direction of the controller's action and the type of control valve in a multiloop system is developed. IDSCA can not only perform heuristic reasoning but also test and modify its results adaptively. It paves a way for our research on the use of intelligent systems for computer-aided control system design. IDSCA seems to be relatively simple but effective for the design of industrial process control systems. The important significance behind the practical application is the investigation of both new design criterion and Adaptive Feedback Testing System. The former may complement the knowledge of process control, while the later will stimulate the development of intelligent systems with high reliability and performance. In short, such a process of building intelligent systems is of benefit not only to AI research, but also to the development of control theory. Finally, the reader should note that the methodology provided in this paper is based on the block diagram for the control system. For the instrumentation in which the definition of the error signal is reversed, the results for the direction of the controller's action are just opposite.