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Summary
Summary
Networked control systems (NCS) confer advantages of cost reduction, system diagnosis and flexibility, minimizing wiring and simplifying the addition and replacement of individual elements; efficient data sharing makes taking globally intelligent control decisions easier with NCS.
The applications of NCS range from the large scale of factory automation and plant monitoring to the smaller networks of computers in modern cars, places and autonomous robots.
Networked Control Systems presents recent results in stability and robustness analysis and new developments related to networked fuzzy and optimal control. Many chapters contain case-studies, experimental, simulation or other application-related work showing how the theories put forward can be implemented.
The state-of-the art research reported in this volume by an international team of contributors makes it an essential reference for researchers and postgraduate students in control, electrical, computer and mechanical engineering and computer science.
Author Notes
A list of the professional achievements of the Professor Derong Liu includes:
Fellow of the IEEE (Institute of Electrical and Electronics Engineers), since 2005
AdCom Member (elected), IEEE Computational Intelligence Society, 2006-2009
Editor, IEEE Computational Intelligence Society Electronic Letter, 2004-present
Letters Editor, IEEE Trans. on Neural Networks, 2006-present
Associate Editor, Automatica, 2006-present
Associate Editor, IEEE Computational Intelligence Magazine, 2006-present
Associate Editor, IEEE Trans. on Neural Networks, 2004-2006
Associate Editor, IEEE Trans. on Signal Processing, 2001-2003
Associate Editor, IEEE Trans. on Circuits and Systems-I, 1997-1999
Member, Conference Editorial Board, IEEE Control Systems Society, 1995-2000
General Chair, IEEE International Conference on Networking, Sensing
and Control, Sanya, China, 2008
General Chair, 4th International Symposium on Neural Networks,Nanjing, China, 2007
Program Chair, International Joint Conference on Neural Networks, Hong Kong, 2008
Program Chair, IEEE International Symposium on Approximate Dynamic Programming and
Reinforcement Learning, Honolulu, Hawaii, 2007
Program Chair, 21st IEEE International Symposium on IntelligentControl, Munich, Germany, 2006
Program Chair, IEEE International Conference on Networking, Sensing and Control, Ft. Lauderdale, FL, 2006
University Scholar, University of Illinois, 2006-2009 CAREER Award, National Science Foundation, 1999
Harvey N. Davis Distinguished Teaching Award, Stevens Institute of Technology, 1997
Michael J. Birck Fellowship, University of Notre Dame, 1990
Listed in Who's Who in America
Listed in Who's Who in Science and Engineering
Table of Contents
List of Contributors | p. xvii |
1 Overview of Networked Control Systems | p. 1 |
1.1 Introduction | p. 1 |
1.1.1 Advantages and Applications of Control over Network | p. 2 |
1.1.2 Brief History of Research Field of NCS | p. 4 |
1.2 NCS Categories and NCS Components | p. 5 |
1.2.1 NCS Components | p. 8 |
1.2.2 Information Acquisition in a Network | p. 8 |
1.2.3 Control of Actuators over a Network | p. 9 |
1.2.4 Communication | p. 9 |
1.3 NCS Challenges and Solutions | p. 10 |
1.3.1 Integration of Components and Distribution of Intelligence | p. 13 |
1.4 A Case Study for NCS-iSpace | p. 14 |
1.5 Conclusions | p. 20 |
References | p. 21 |
2 Overview of Agent-based Control and Management for NCS | p. 25 |
2.1 Introduction | p. 25 |
2.2 From Electricity to Connectivity: Why Agent-based Control and Management for Networked Systems | p. 26 |
2.3 Hosting Mechanism and System Architecture for ABC | p. 28 |
2.4 Design Principle for Networked Control Systems: Local Simple, Remote Complex (LSRC) | p. 33 |
2.5 Modular Construction and Learning Algorithms of Neuro-fuzzy Networks for LSRC Implementation | p. 35 |
2.6 Issues in Software, Middleware, and Hardware Platforms | p. 46 |
2.7 Real-world Applications | p. 50 |
2.8 Concluding Remarks and Future Work | p. 51 |
References | p. 53 |
3 Networked Control Systems: Emulation-based Design | p. 57 |
3.1 Introduction | p. 57 |
3.2 Overview of Emulation-based NCS Design | p. 60 |
3.2.1 Principles of Emulation-based NCS Design | p. 60 |
3.2.2 Results in Perspective | p. 61 |
3.3 Modeling Networked Control Systems and Scheduling Protocols | p. 65 |
3.3.1 Scheduling and a Hybrid System Model for NCS | p. 68 |
3.3.2 NCS Scheduling Protocol Properties | p. 70 |
3.3.3 Lyapunov UGES and a.s. UGES Scheduling Protocols | p. 71 |
3.3.4 PE T Scheduling Protocols | p. 73 |
3.3.5 a.s. Covering Protocols | p. 76 |
3.3.6 Slotted p Persistent CSMA | p. 79 |
3.3.7 CSMA with Random Waits | p. 80 |
3.4 NCS Stability | p. 81 |
3.4.1 L p Stability of NCS with Lyapunov UGES Protocols | p. 82 |
3.4.2 L p Stability of NCS with PE T Protocols | p. 83 |
3.4.3 L p Stability of NCS with Random Protocols | p. 84 |
3.4.4 L p Stability of NCS with a.s. Lyapunov Protocols | p. 85 |
3.5 Case Studies and Comparisons | p. 86 |
3.5.1 Comparison of Analytical Inter-transmission Bounds | p. 87 |
3.5.2 Comparison of Numerical Inter-transmission Bounds (p 0 = 0) | p. 89 |
3.5.3 Comparison of Numerical Inter-transmission Bounds (p 0 > 0) | p. 91 |
3.6 Conclusions | p. 93 |
References | p. 94 |
4 Analysis and Design of Networked Predictive Control Systems | p. 95 |
4.1 Introduction | p. 95 |
4.2 Networked Predictive Control | p. 97 |
4.2.1 Design of the Control Prediction Generator | p. 97 |
4.2.2 Design of the Network Delay Compensator | p. 101 |
4.2.3 Algorithm of Networked Predictive Control | p. 102 |
4.3 Stability of Networked Predictive Control Systems | p. 102 |
4.3.1 Fixed Network Transmission Delay | p. 102 |
4.3.2 Random Network Communication Time Delay | p. 103 |
4.4 Simulation of Networked Predictive Control Systems | p. 106 |
4.4.1 Estimation of Network Transmission Delay | p. 106 |
4.4.2 Off-line Simulation | p. 106 |
4.4.3 Real-time Simulation | p. 107 |
4.5 Implementation of Networked Predictive Control Systems | p. 111 |
4.5.1 Software of Networked Control Systems | p. 111 |
4.5.2 Networked Control System Test Rig | p. 114 |
4.5.3 Practical Experiments | p. 115 |
4.6 Conclusions | p. 118 |
References | p. 118 |
5 Robust H ∞ Control and Filtering of Networked Control Systems | p. 121 |
5.1 Introduction | p. 121 |
5.2 Robust H ∞ Control of NCS | p. 123 |
5.2.1 System Description and Preliminaries | p. 123 |
5.2.2 H ∞ Performance Analysis | p. 125 |
5.2.3 Robust H ∞ Controller Design | p. 132 |
5.2.4 Numerical Examples | p. 134 |
5.3 Robust H ∞ Filter Design of NCS | p. 136 |
5.3.1 Modeling a Network-based Filter | p. 136 |
5.3.2 H ∞ Performance Analysis of Filtering-error System | p. 139 |
5.3.3 H ∞ Filter Design | p. 142 |
5.3.4 Numerical Examples | p. 144 |
5.4 Definition of ¿ ij | p. 147 |
5.5 Conclusions | p. 149 |
References | p. 150 |
6 Switched Feedback Control for Wireless Networked Systems | p. 153 |
6.1 Introduction | p. 153 |
6.2 Mathematical Modeling of NCS as a Switched System | p. 155 |
6.3 Optimal Output Feedback Control | p. 157 |
6.3.1 Gain Tuning of Output Feedback Parameter | p. 158 |
6.3.2 Stability Investigation: Numerical Results | p. 160 |
6.4 Experimental and Simulation Results | p. 162 |
6.4.1 Switched Feedback Control Over GPRS | p. 162 |
6.4.2 Switched Feedback Control Over IEEE 802.11b | p. 169 |
6.4.3 Switched Optimal Feedback Control Over IEEE 802.11b in MANETs | p. 185 |
6.5 Conclusions | p. 193 |
References | p. 193 |
7 Networked Control for T-S Fuzzy Systems with Time Delay | p. 197 |
7.1 Introduction | p. 197 |
7.2 Guaranteed Cost Networked Control for T-S Fuzzy Systems with Time Delay | p. 199 |
7.3 Simulation Results | p. 214 |
7.4 Robust H ∞ Networked Control for T-S Fuzzy Systems with Time Delay | p. 220 |
7.5 Simulation Results | p. 228 |
7.6 Conclusions | p. 231 |
References | p. 231 |
8 A Discrete-time Jump Fuzzy System Approach to NCS Design | p. 233 |
8.1 Introduction | p. 233 |
8.1.1 Fundamental Issues in NCS | p. 234 |
8.1.2 Previous Work | p. 234 |
8.2 Modeling NCS | p. 235 |
8.2.1 Markov Characteristics of NCS | p. 236 |
8.2.2 Discrete-time Jump Fuzzy System | p. 237 |
8.3 State-feedback Controller Design | p. 238 |
8.3.1 The Closed-loop Model of an NCS | p. 238 |
8.3.2 Guaranteed Cost Controller Design | p. 239 |
8.3.3 Homotopy Algorithm | p. 245 |
8.4 Output Feedback Controller Synthesis of an NCS | p. 246 |
8.4.1 Fuzzy Observer Design | p. 246 |
8.4.2 Output Feedback Controller Design | p. 247 |
8.4.3 Simulation Example | p. 249 |
8.5 Neuro-fuzzy Controller Design | p. 253 |
8.5.1 Neuro-fuzzy Predictor | p. 255 |
8.5.2 Fuzzy Controller | p. 256 |
8.6 Conclusions | p. 256 |
References | p. 257 |
9 Networked Boundary Control of Damped Wave Equations | p. 261 |
9.1 Introduction | p. 261 |
9.2 A Brief Introduction to the Smith Predictor | p. 262 |
9.3 Boundary Control of Damped Wave Equations with Large Delays | p. 263 |
9.4 Stability and Robustness Analysis | p. 265 |
9.5 Fractional Order Case - Problem Formulation | p. 268 |
9.6 Fractional Order Case - Robustness of Boundary Stabilization | p. 270 |
9.7 Fractional Order Case - Compensation of Large Delays in Boundary Measurement | p. 271 |
9.8 Conclusions | p. 272 |
References | p. 272 |
10 Coordination of Multi-agent Systems Using Adaptive Velocity Strategy | p. 275 |
10.1 Introduction | p. 275 |
10.2 The Constant Speed Vicsek Model | p. 277 |
10.3 The Adaptive Velocity Model | p. 278 |
10.4 Simulations and Discussions | p. 281 |
10.5 Conclusions | p. 288 |
References | p. 290 |
11 Design of Robust Strictly Positive Real Transfer Functions | p. 293 |
11.1 Introduction | p. 293 |
11.2 Definitions and Notation | p. 294 |
11.3 Some Properties of SPR (WSPR) Regions | p. 295 |
11.4 Characterization of SPR (WSPR) Regions | p. 302 |
11.5 Robust SPR Synthesis: Intersection of WSPR Regions | p. 307 |
11.6 Applications to Robust SPR Synthesis for Low-order Systems | p. 310 |
11.6.1 The Third-order SPR Synthesis | p. 312 |
11.6.2 The Fourth-order SPR Synthesis | p. 316 |
11.7 Robust SPR Synthesis for Polynomial Segment of Arbitrary Order | p. 324 |
11.7.1 Main Results | p. 324 |
11.7.2 Design Procedure and Some Examples | p. 330 |
11.7.3 Appendix: Proof of Lemma 11.17 | p. 332 |
11.8 Conclusions | p. 337 |
References | p. 338 |
Index | p. 343 |