Fuzzy logic electronic controller and associated method for setting up memories thereof
US5799132A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1993 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Feb 24, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S706/90
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A fuzzy logic electronic controller whereby predetermined membership functions .mu.(x) of logic (X) variables are subjected to so-called inference operations configured essentially as IF-THEN rules with at least one front preposition and at least one rear implication. The controller is of a kind which includes an input or fuzzyfier section having a plurality of inputs for analog or digital signals, a central control unit or fuzzy controller core placed after said input section and being provided with memories, and an output section or defuzzyfier connected to the output of the central unit to convert the results of the inference operations back to analog or digital signals. The controller includes a plurality of fuzzyfiers being disposed in parallel within said input section and each connected to a pair of analog and digital inputs, a plurality of storage modules corresponding in number to said fuzzyfiers and containing data of the front prepositions only of said rules, a fuzzy controller inference unit active in the central control unit to carry out logic operations based on said inference rules of the fuzzy logic by extracting data from said memories through an interfacing circui…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.