Defuzzification device for a high-resolution fuzzy logic controller
US5778149A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1997 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Jan 29, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S706/90
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A defuzzification device in which, depending on selection signals (FA1, FA2) and aggregated regulation weights (.gamma.), either in a maximum process a first/last maximum value at which an associated aggregated regulation weight is a maximum is selected as the sharp output value (g) and an activation signal (ENGARZ) is formed or, as an alternative, in a first or second center of gravity process (COG12) a sharp output value (g) is formed from center of gravity coordinates (S.sub..nu.) and aggregated regulation weights (.gamma..sub..nu.), alone or additionally using area measurement figures (F.sub..nu.), adders (ADD1, ADD2) with a register (Z-Reg, N-Reg) connected downstream in each case, a multiplier (MULT) and a divider (DIV) being able to be used advantageously both for the first and for the second center of gravity process, and one of the adders (ADD2) being used for the formation of the activation signal (ENGARZ), if a defuzzification is being carried out according to the maximum process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.