A real-time expert system shell for process control.

[摘要] A multi-layered expert system shell that specifically addresses real-time issues isdesigned and implemented. The architecture of this expert system shell supports theconcepts of parallelism, concurrent computation and competitive reasoning in that itallows several alternatives to be explored simultaneously. An inference engine drivenby a hybrid of forward and backward chanining methods is used to achieve real-timeresponse, and certainty factors are used for uncertainty management. Real-timeresponsiveness is improved by allowing the coexistence of procedural and declarativeknowledge within the same system.A test bed that was set up in order to investigate the performance of the implementedshell is described. It was found in the performance analysis that theproposed system meets the real-time requirements as specified in this research.

[发布机构] University of the Witwatersrand