| 摘要 |
PURPOSE:To easily extract a fuzzy rule in a short time and at the low cost by selecting a fuzzy rule suited to the statistic processing out of those fuzzy rules stored in a data base. CONSTITUTION:The antecedent part of a fuzzy rule obtained from a fuzzy rule generating device 3 serves as the antecedent part corresponding to the data given from a plant state data processor 1. A fuzzy rule data base 4 stores the fuzzy rules received from the device 3. A fuzzy rule selector 5 carries out a method for the statistic processing, etc., through a fuzzy rule group and then carries out the weighting statistic processing to apply the weighting to the fuzzy rules. Furthermore the selector 5 carries out the statistic processing based on the plant state changing degree and in response to the plant state changing frequency. Thus the selector 5 selects the fuzzy rules. In such a constitution, an operator or a plant engineer can easily extract the fuzzy rules. |
