1st Edition

Intelligent Control Fuzzy Logic Applications

By Clarence W. de Silva Copyright 1995

    The emergence of fuzzy logic and its applications has dramatically changed the face of industrial control engineering. Over the last two decades, fuzzy logic has allowed control engineers to meet and overcome the challenges of developing effective controllers for increasingly complex systems with poorly defined dynamics. Today's engineers need a working knowledge of the principles and techniques of fuzzy logic-Intelligent Control provides it.

    The author first introduces the traditional control techniques and contrasts them with intelligent control. He then presents several methods of representing and processing knowledge and introduces fuzzy logic as one such method. He highlights the advantages of fuzzy logic over other techniques, indicates its limitations, and describes in detail a hierarchical control structure appropriate for use in intelligent control systems. He introduces a variety of applications, most in the areas of robotics and mechatronics but with others including air conditioning and process/production control. One appendix provides discussion of some advanced analytical concepts of fuzzy logic, another describes a commercially available software system for developing fuzzy logic application.

    Intelligent Control is filled with worked examples, exercises, problems, and references. No prior knowledge of the subject nor advanced mathematics are needed to comprehend much of the book, making it well-suited as a senior undergraduate or first-year graduate text and a convenient reference tool for practicing professionals.

    CONVENTIONAL AND INTELLIGENT CONTROL
    Introduction
    Conventional Control Techniques
    Summary
    Problems
    References
    KNOWLEDGE REPRESENTATION AND PROCESSING
    Introduction
    Knowledge and Intelligence
    Logic
    Semantic Networks
    Frames
    Production Systems
    Summary
    Problems
    References
    FUNDAMENTALS OF FUZZY LOGIC
    Introduction
    Fuzzy Sets
    Fuzzy Logic Operations
    Some Definitions
    Fuzzy Relations
    Composition and Inference
    Membership Function Estimation
    Summary
    Problems
    References
    FUZZY LOGIC CONTROL
    Introduction
    Basics of Fuzzy Control
    Decision Making with Crisp Measurements
    Defuzzification
    Architectures of Fuzzy Control
    Summary
    Problems
    References
    KNOWLEDGE-BASED TUNING
    Introduction
    Theoretical Background
    Analytical Framework
    Computational Efficiency
    Dynamic Switching of Fuzzy Resolution
    Illustrative Example
    Summary
    Problems
    References
    KNOWLEDGE-BASED CONTROL OF ROBOTS
    Introduction
    Robotic Control System
    Application to Robots
    In-Loop Direct Control
    High-Level Fuzzy Control
    Control Hierarchy
    System Development
    Servo Expert Development
    Summary
    Problems
    References
    SERVO MOTOR TUNING
    Introduction
    System Development
    Results
    Theory of Rule Base Decoupling
    Experimental Illustration
    Summary
    Problems
    References
    HIERARCHICAL FUZZY CONTROL
    Introduction
    General Concepts
    Hierarchical Model
    Effect of Information Processing
    Application in Process Control
    Summary
    Problems
    References
    INTELLIGENT RESTRUCTURING OF PRODUCTION SYSTEMS
    Introduction
    Theoretical Framework
    Implementation Using a Blackboard Architecture
    Case Study
    Summary
    Problems
    References
    FUTURE APPLICATIONS
    Introduction
    Intelligence in Automation
    Intelligent Multiagent Control
    Reconfigurable Autonomous Manipulators
    Intelligent Fusion of Sensors and Actuators
    Mechatronics Era
    Conclusion
    Problems
    References
    APPENDIX A: Further Topics on Fuzzy Logic
    APPENDIX B: Software Tools for Fuzzy Logic Applications
    Index

    Biography

    de Silva, Clarence W.

    "de Silva's book excels as an introduction to the design and implementation of intelligent control systems based on fuzzy logic…a well-rounded and well-balanced blend of research results and industrial applications."
    -F. Karray in IEEE Spectrum, October 1996