| 摘要 |
A fuzzy inference system includes a combination of fuzzy inference units. Each of the fuzzy inference units includes a plurality of fuzzy inference circuit sections and difuzzifier and is adapted to treat an input variable to form a controlled variable in accordance with a given fuzzy control rule. In order to extend the number of input variables and/or rules, the fuzzy inference circuit section of each of the fuzzy inference units includes an external extension input terminal, an external extension output terminal, a rule extending terminal and a change-over switch. When the external extension input terminal of one fuzzy inference unit is connected to that of the other fuzzy inference unit, the number of input variables can be extended. When the rule extending terminal of one fuzzy inference unit is connected to that of the other fuzzy inference unit, the number of rules can be easily extended.
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