Fuzzy logic ppt
- 1. FUZZY LOGIC AND ITS APPLICATION presented by- HAMMAD HASAN “THERE IS NOTHING WORSE THAN A SHARP KNOWLEDGE OF FUZZY LOGIC”
- 2. What is fuzzy logic? Fuzzy Logic (FL) is a method of reasoning that resembles human reasoning. The approach of FL imitates the way of decision making in humans that involves all intermediate possibilities between digital values YES and NO. The conventional logic block that a computer can understand takes precise input and produces a definite output as TRUE or FALSE, which is equivalent to human’s YES or NO.
- 3. Some Related Fields Evidence theory Knowledge engineering Pattern recognition & image processing Control theory Fuzzy logic And Fuzzy set theory
- 4. Rules- Fuzzy logic usually uses IF-THEN rules, or constructs thatare equivalent. -IF variable IS property THEN action Example:- • A simple temperature regulator that uses a fan might look like this: IF temperature IS very cold THEN stop fan IF temperature IS cold THEN turn down fan IF temperature IS normal THEN maintain level IF temperature IS hot THEN speed up fan
- 5. Fuzzy Logic In Control Systems Fuzzy Logic provides a more efficient and resourceful way to solve Control Systems. Some Examples Temperature Controller Anti – Lock Break System ( ABS )
- 6. Temperature Controller The problem Change the speed of a heater fan, based off the room temperature and humidity. A temperature control system has four settings Cold, Cool, Warm, and Hot Humidity can be defined by: Low, Medium, and High Using this we can define • the fuzzy set.
- 7. Fuzzy Logic in a Washing Machine Fuzzy logic washing machines are gaining popularity. These machines offer the advantages of performance, productivity, simplicity, productivity, and less cost. Sensors continually monitor varying conditions inside the machine and accordingly adjust operations for • the best wash results. As there is no standard for fuzzy logic, different machines perform in different manners.
- 9. Block diagram for Controller
- 10. Fuzzy Logic Applications Aerospace Altitude control of spacecraft, satellite altitude control, • flow and mixture regulation in aircraft deiceing vehicles. Automotive Trainable fuzzy systems for idle speed control, shift scheduling method for automatic transmission, intelligent highway systems, traffic control, improving efficiency of automatic transmissions
- 11. Fuzzy Logic Applications Defense Underwater target recognition, automatic target recognition of thermal infrared images, naval decision support aids, control of a hypervelocity interceptor, fuzzy set modeling of NATO decision making. Electronics Control of automatic exposure in video cameras, humidity in a clean room, air conditioning systems, washing machine timing, microwave ovens, vacuum cleaners.
- 12. Fuzzy Logic Applications Mining and Metal Processing Sinter plant control, decision making in metal forming. Robotics Fuzzy control for flexible-link manipulators, robot arm control. Securities Decision systems for securities trading. Industrial Cement kiln controls heat exchanger control, activated sludge wastewater treatment process control, water purification plant control, quantitative pattern analysis for industrial quality assurance, control of constraint satisfaction problems in structural design, control of water purification plants
- 13. Future Scopes Of Fuzzy Logic The emergence of fuzzy logic and its applications has dramatically changed the face of industrial control engineering. Fuzzy logic has given an opportunity to control engineers to meet and overcome the challenges of developing effective controllers for complex systems. The area of fuzzy logic is still in its infancy, and is a very fertile area of engineering research. Comparison of genetic algorithms with other evolutionary techniques viz. simulated annealing, chaotic theory is a grey area of research in the field of optimization. Artificial Intelligence(AI) is the simulation of human intelligence by machines. In other words, it is the method by which machines demonstrate certain aspects of human intelligence like learning, reasoning and self- correction. Since its inception, AI has demonstrated unprecedented growth. Sophia the AI Robot, is the best example of this. The future of Artificial intelligence is hazy. But going by the bounds of progress AI has been making, it is clear AI will permeate every sphere of our life.