A woolly induction system includes a cabal of muddled evidence unit of measurements. Each of the addled inference units includes a ingroup of blear-eyed inference circuit sections and difuzzifier and is adapted to cut across an commentary 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 individually of the fuzzy inference units includes an impertinent reference input terminal, an external extension outturn terminal, a rule extending terminal and a change-over switch. When the external extension input terminal of wiz 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.
A fuzzy inference system comprising:
(a) a plurality of fuzzy inference performer, individually for performing a fuzzy reasoning establish on a respective rule of said distributively fuzzy inference means, and
(b) centroid determining means for receiving an output of each of said fuzzy inference means and for forming a controlled output, wherein each of said fuzzy inference means comprises: a plurality of membership function generating units; external extension input means for receiving a variable-extending signal from another one of said fuzzy inference means; first stripped comfort calculating means for calculating a first minimum value from an output of each of said membership function generating units; s minimum value calculating means for calculating a second minimum value from the variable-extending signal of said external extension input means and said first minimum value; and external extension output means for externally outputting said second minimum value to at least(prenominal) one of said centroid determining means and another one of said fuzzy inference means.
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