What is a fuzzy logic controller?

Fuzzy logic control is a heuristic approach that easily embeds the knowledge and key elements of human thinking in the design of nonlinear controllers [41–43]. Fuzzy logic controllers usually outperform other controllers in complex, nonlinear, or undefined systems for which a good practical knowledge exists.

What is fuzzy logic in layman terms?

Fuzzy logic is a sort of computer logic that is different from boolean algebra founded by Lotfi A. Zadeh. While boolean logic only allows true or false, fuzzy logic allows all things in between. An example of this could be a computer game: A person is standing in a doorway while a thing explodes.

What is fuzzy controller explain with real life example?

Washing machines now use fuzzy logic. They can sense how heavy a load is and determine the correct amount of water and detergent, speed of agitation, and length of the wash cycles. There is no single standard for the dirty laundry. Fuzzy logic enables the machine’s computer to make “in between” decisions.

What are the steps involved in designing a fuzzy logic controller explain the architecture of a FLC?

The basic architecture of a fuzzy logic controller is shown in Figure 2. The principal components of an FLC system is a fuzzifier, a fuzzy rule base, a fuzzy knowledge base, an inference engine, and a defuzz. The fuzzy knowledge base stores the knowledge about all the input-output fuzzy relationships.

How is fuzzy logic different from conventional control method?

2. How is Fuzzy Logic different from conventional control methods? Explanation: FL incorporates a simple, rule-based IF X AND Y THEN Z approach to a solving control problem rather than attempting to model a system mathematically.

What is fuzzy logic explain it with applications?

Fuzzy logic is used in Natural language processing and various intensive applications in Artificial Intelligence. It is extensively used in modern control systems such as expert systems. Fuzzy Logic mimics how a person would make decisions, only much faster. Thus, you can use it with Neural Networks.

What is fuzzy logic controller design process?

Steps in Designing FLC Identification of variables − Here, the input, output and state variables must be identified of the plant which is under consideration. Fuzzy subset configuration − The universe of information is divided into number of fuzzy subsets and each subset is assigned a linguistic label.

How do you design a fuzzy logic system?

The design of a fuzzy logic system starts with a set of membership functions for each input and a set for each output. A set of rules is then applied to the membership functions to yield a “crisp” output value. For this process control explanation of fuzzy logic, TEMPERATURE is the input and FAN SPEED is the output.

What are the components of fuzzy logic control (FLC)?

The following diagram shows the architecture of Fuzzy Logic Control (FLC). Followings are the major components of the FLC as shown in the above figure − Fuzzifier − The role of fuzzifier is to convert the crisp input values into fuzzy values. Fuzzy Knowledge Base − It stores the knowledge about all the input-output fuzzy relationships.

Who is the father of fuzzy logic?

There can be numerous other examples like this with the help of which we can understand the concept of fuzzy logic. Fuzzy Logic was introduced in 1965 by Lofti A. Zadeh in his research paper “Fuzzy Sets”. He is considered as the father of Fuzzy Logic.

What are the fuzzy control rules for controller design?

The fuzzy control rules, basically the IF-THEN rules, can be best utilized in designing a controller. While designing fuzzy control system, the following six basic assumptions should be made −