Method for multiple use of a rule base in a fuzzy logic coprocessor

摘要

The method involves using a data structure that comprises a parameter word (KBD0) as well as start addresses (KBD1,KBD2,KBD3) pointing to input relation functions (IMB), a usage part (RBB), a control base and output relation functions (OMB). The usage part of all rules (rmax) of the control base and the complete deduction part (ORW0) are stored in separate consecutive blocks. Additional deduction parts (ORWk) are stored together with usage parts in the same structure, having additional parameter words and output relation functions, in consecutive order and with only that order determining the relations between the entire usage and deduction part. Ruling weights (gr) are formed for each rule based on (n) activated input values (En), the input relation functions and the usage part. The ruling weights are summed in an corresponding compiled ruling weight (G(LWAmk)), based on the deduction part and the parameter word for each linguistic value (LWAmk) of the corresponding output value, according to a corresponding compilation value. The compiled ruling weight is weighed with the corresponding output relation function (OMBk) and de-fuzzyfied to an activated output value, according to a procedure determined by the corresponding parameter word.