Design of knowledge-based real-time controllers for assembly systems

This paper presents a methodology for synthesizing real-time controllers of assembly systems. The approach used is knowledge-based; it combines the use of frames and production rules to implement decision-making processes controlling the activities of the assembly system components according to asynchronous events which represent expected or unexpected (but predictable) situations. The method the author proposes gives the guidelines to construct modular and condensed knowledge bases from the specification of the assembly tasks