Structure of Fuzzy Logic Controller
Fuzzy logic has rapidly become one of the most successful of today’s technologies for developing sophisticated control systems. With its aid, complex requirements may be implemented in amazingly simple, easily maintained, and inexpensive controllers . The fuzzy controller, have four main components:
The Rule-Base holds the knowledge, in the form of a set of rules, of how best to control the system.
The Inference Mechanism evaluates which control rules are relevant at the current time and then decides what the input to the plant should be.
The Fuzzification Interface simply modifies the inputs so that they can be interpreted and compared to the rules in the rule-base. And
The Defuzzification Interface converts the conclusions reached by the inference mechanism into the inputs to the plant.