Transactions of the Institute of Systems, Control and Information Engineers
Online ISSN : 2185-811X
Print ISSN : 1342-5668
ISSN-L : 1342-5668
Inference Procedure of Plant Control Expert Shell ; ERIC
Takuya ISHIOKAMorikazu TAKEGAKITadashi OHI
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1991 Volume 4 Issue 8 Pages 320-330

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Abstract

To apply knowledge-based methods to industrial process control systems, we developed a real-time expert shell : ERIC (Extended Rule-based system for Intelligent Control).
Its knowledge-base consists of working memory and rule-base. To present a process structure in working memory, we support a link description in frame-type data. The rule-base has a module structure of rule sets. Each rule set is a group of boolian or fuzzy logic rules. Therefore, the rule-base can express plant operation in various situations totally.
In this paper, we present the structure of internal data for knowledge-base in ERIC. And we explain an integrated inference procedure for boolian logic rules and fuzzy logic rules based on the structure of internal data.

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