Design and Implementation of Evolutionary Fuzzy Logic Controller Based on Look-up Table
Xuewen Xia · 2009
The most common implementation of Fuzzy Logic Controller (FLC) relies on software or microprocessors; however,FLC admits a high degree of parallelism system and high real-time,high self-adaptability.This way is not suitable to performance of design.There are two ways to solve this problem.One is to design EHW-oriented algorithms such as variable Genetic algorithm (GA); another way is to design new devices structure which meets the requirements of Evolvable Hardware (EHW).A method about design of evolvable FLC based on multi-valued logic and PLA theory was proposed.A new generation algorithm was proposed according to symmetry and monotonous character of look-up table.Hardware circuit of look-up table was designed based on J doors and PLA.The performance of a fuzzy system in the control of a two-order system was evaluated.The results obtained show the applicability of this platform in the design of fuzzy control systems.