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15th World Congress of the International Federation of Automatic control, 2002

作者： Gil-Martínez, M. García-Sanz, M. System Engineering and Automation Group Electrical Engineering Department University of La Rioja Luis de Ulloa 20 Logroño26004 Spain Automatic Control and Computer Science Department Public University of Navarra Campus Arrosadía Pamplona31006 Spain

ISBN: (纸本)9783902661746

The feedback control structures are required in the presence of any kind of uncertainty. The benefits of the feedback are mainly paid with an excessive bandwidth that amplifies the sensor noise, saturating the actuators. This implies the necessity of design tradeoffs highly transparent from the Quantitative Feedback Theory. Supposing a given uncertainty for a plant, the set of performance and stability requirements will condition the problem solution. Taking advantage of the QFT bound typology and formulation, the contribution of the robust specification values to their simultaneous achievement will be analysed and particularly as regards the challenging task of the controller design. Copyright © 2002 IFAC.

关键词： controllers

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ROBUST SPECIFICATION INFLUENCE ON FEEDBACK control STRATEGIES

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IFAC Proceedings Volumes 2002年第1期35卷 425-430页

作者： M. Gil-Martínez M. García-Sanz System Engineering and Automation Group Electrical Engineering Department University of La Rioja. Luis de Ulloa 20 26004 Logroño SPAIN Automatic Control and Computer Science Department Public University of Navarra. Campus Arrosadía 31006 Pamplona SPAIN

关键词： Robust control Uncertain dynamical systems Quantitative Feedback Theory

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A software engineering approach to constraint programming systems

A software engineering approach to constraint programming sy...

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Asia-Pacific Conference on Software Engineering

作者： K.B.K. Ng Chiu Wo Choi M. Henz Advanced Application Technologies Honeywell Automation and Control Solutions ACS Laboratory USA Department of Computer Science and Engineering Chinese University of Hong Kong Hong Kong China School of Computing National University of Singapore Singapore

Constraint programming (CP) systems are useful for solving real-life combinatorial problems, such as scheduling, planning, rostering and routing problems. The design of modern CP systems has evolved from a monolithic to an open design in order to meet the increasing demand for application-specific customization. It is widely accepted that a CP system needs to balance various design factors such as efficiency versus customizability and flexibility versus maintenance. This paper captures our experience with using different software engineering approaches in the development of constraint programming systems. These approaches allow us to systematically investigate the different factors that affect the performance of a CP system. In particular we review the application of reuse techniques, such as toolkits, framework and patterns, to the design and implementation of a finite-domain CP system.

关键词： Software engineering Knowledge based systems Software systems Application software Engines computer industry Software algorithms Information systems System software Software quality

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Decomposition of complex linear systems via hierarchical similarity structure

Decomposition of complex linear systems via hierarchical sim...

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IEEE International Conference on Electronics, Circuits and Systems (ICECS)

作者： Y.-W. Jing G.M. Dimirovski J. Zhao M.J. Stankovski Institute of Control Science School of Information Science & Engineering Northeastern University Shenyang Liaoning China Institute of Automation & Systems Engineering Faculty of Electrical Engineering Ss Cyril and Methodius University Skopje Macedonia Department of Computer Engineering Faculty of Engineering Dogus University Istanbul Turkey

In this paper, the problem of system decomposition of complex linear dynamical systems, by exploiting the similarity property, is studied. System decompositions were sought in terms of similarity hierarchical structures. Three new theoretical results were proved. A method for constructing the transformation has been derived. The conditions for such decomposition of complex linear systems are given.

关键词： Linear systems control systems Systems engineering and theory Design engineering Interconnected systems Robots Automatic control Information science automation Modems

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On complex non-linear systems with symmetries: controllability preserving decomposition

On complex non-linear systems with symmetries: controllabili...

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IEEE International Conference on Electronics, Circuits and Systems (ICECS)

作者： G.M. Dimirovski Y.-W. Jing J. Zhao T.D. Kolemisevska-Gugulovska Institute of Automation & Systems Engineering Faculty of Electrical Engineering Ss Cyril and Methodius University Skopje Macedonia Department of Computer Engineering Faculty of Engineering Dogus University Istanbul Turkey Institute of Control Science School of Information Science & Engineering Northeastern University Shenyang Liaoning China Institute of Automation & Systems Engineering Faculty of Electrical Engineering Ss Cyril and Methodius University Skopje Macedonia

In this paper, the problems of isomorphic decomposition and controllability of a class of nonlinear systems possessing symmetries, on the basis of quotient systems, is studied. The isomorphic decomposition formations of these systems are derived. Finally, it is shown that controllability of the original systems can be determined by that of the subsystems, which are obtained through isomorphic decomposition. The corresponding sufficient and necessary conditions are given. Two new theoretical results have been proved.

关键词： controllability Nonlinear control systems control systems Nonlinear systems Automatic control Information science automation Systems engineering and theory Feedback Mathematical model

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On simulation based analysis and synthesis of hierarchical network sturctures 6

On simulation based analysis and synthesis of hierarchical n...

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6th European control Conference, ECC 2001

作者： Tanevska, Dijana J. Dimirovski, Georgi M. Stankovski, Mile J. Jing, Yuanwei Makedonski Telekomunikacii AD Orce Nikolov Str. b.b. SkopjeMK-91000 Macedonia Inst. of Automation and Systems Engg. Faculty of Electrical Engg. SS Cyril and Methodius University SkopjeMK-1000 Macedonia Department of Computer Engg. Faculty of Engineering DOGUS University Kadikoy-IstanbulTR-81010 Turkey Dept. of Automatic Control and Control Eng. School of Information Science and Engineering Northeastern University Shenyang Liaoning110006 China

ISBN: (纸本)9783952417362

Analysis of complex systems such as hierarchically structured network systems that are employed in modelling and analysis various aspects and issues of control and management in telecommunications is investigated. Theory of graphs and binary matrices appear to be most suitable tools for modelling the overall structure of complex systems, in general, and of systemic hierarchies, in particular. A systematic methodology has been developed for computer simulation analysis and detecting general hierarchies in communications networking as well as for synthesis of system hierarchies. This methodology is an improved extension of Warfield's technique. © 2001 EUCA.

关键词： Discrete event simulation

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Hybrid leader-follower and fuzzy-Petri-net traffic rate control and supervision in network systems

Hybrid leader-follower and fuzzy-Petri-net traffic rate cont...

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International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service (TELSIKS)

作者： G.M. Dimirovski Yuanwei Jing Siying Zhang Institute of Automation & Systems Engg. Faculty of Electical Engineering SS Cyril and Methodius University Skopje Macedonia Department of Computer Engineering Faculty of Engineeing Dogus University Istanbul Turkey Institute of Control Theory School of Information Science & Engineering Northeastern University Shenyang Liaoning China

This paper addresses networking and traffic control problems in network systems along with the potential for introducing soft-computing applications at supervisory control level. The incentive Stackelberg strategy control concept was introduced to the networking model that comprises subsidiary systems of users and of network. A linear strategy is proposed for the elastic traffic problem, and results are demonstrated and illustrated via Kelly's (1997) example. The presented method is extended to the non-elastic traffic problem and results are also illustrated via a slightly modified Kelly example. Ways of employing combined analytical and soft-computing approaches and techniques in a hybrid framework have been investigated. A fuzzy-Petri-net supervisor is proposed to implement the strategic decision and control layer. Insofar obtained results are rather encouraging, and this research continues further towards possible implementation as well as some open theoretical issues.

关键词： Communication system traffic control control systems Intelligent networks Game theory Telecommunication control Traffic control Routing control system synthesis Supervisory control Pricing

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Fuzzy Adaptive Output Tracking control of a Class of Composite Systems

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IFAC Proceedings Volumes 2001年第3期34卷 81-84页

作者： Bin Liu Yuanwei Jing Siying Zhang G.M. Dimirovski T.D. Kolemishevska Inst. of Control Science School of Information Science & Engg. Northeastern University Po. Box 321 Shenyang Liaoning 110006 P R. of China Department of Computer Engineering Faculty of Engineering DOGUS University Acibadem Kadikoy TR-81000 Istanbul Rep. of Turkey FAX#: + 90-216-327-9631 Inst.of Automation & Systems Engg. Faculty of EE SS Cyril #x0026 Methodius University Karpos 2 b.b. MK-91000 Skopje Rep. of Macedonia

In this paper the output-tracking problem of a class of composite nonlinear systems is studied. Composite system can be represented solely by models on the grounds of its inputs and measurable outputs. It is assumed that (i) the plant system belongs to aclass of composite non linear systems, and that the fuzzy logic control system applied can efficiently use adjustable parameters to approximate its non linear system function. The new theorem guarantees the synthesized indirect fuzzy adaptive control does ensure stable output tracking and possesses the ability to reduce the number of fuzzy rules.

关键词： Adaptive control composite systems fuzzy control MIMO systems nonlinear systems

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Adaptive Neuro controller for a Precise Maneouvring of Underwater Vehicle

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IFAC Proceedings Volumes 2000年第21期33卷 173-178页

作者： Zoran Vukić Bruno Borović Boris Tovornik Department of Control and Computer Engineering in Automation University of Zagreb Control Engineering Department Brodarski institute d.o.o. Institute of Automation University of Maribor Faculty of Electrical Engineering and Computer Science

A neuro controller for high precision manoeuvring of underwater vehicles require special attention to a number of factors including thruster and vehicle’s nonlinearities, couplings which exist between various degrees of freedom as well as effects of the sea currents. The neuro control system for underwater vehicle maneouvring described here is based on the conventional controller supported with the so called adaptive neural network.

关键词： neural networks underwater vehicle trajectory guidance

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Unconventional integration of the fundamental elements of soft computing and traditional methods in adaptive robot control

Unconventional integration of the fundamental elements of so...

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IEEE International Conference on Robotics and automation (ICRA)

作者： J.K. Tar I.J. Rudas J.F. Bito K. Kozlowski Department of Information Technology Centre of Robotics and Automation Bánki Donát Polytechnic Hungary Chair of Control Robotics and Computer Science Poznan University of Technology Poznan Poland

Traditional fuzzy controllers or artificial neural networks are constrained by standardized formal procedures and structural restrictions. While in general it is guaranteed that these approaches or their integration can solve a quite wide class of problems, their "orthodox" application may result in too complicated control not exploiting the peculiarities of the given task under consideration. The aim of the paper is to demonstrate that unconventional integration of simple elements such as classic PID/ST, regression analysis, saturated sigmoid transition functions, fuzzy sets and uniform structures obtained from the Lagrangian classical mechanics instead of the connection structure of a feedforward artificial neural networks can result in a simple and efficient adaptive control for robots involved in unknown environmental dynamic interaction. Due to their simplicity and reduced number of parameters real time tuning can be carried out in these structures. Most of the parameters are independent of the particular problem to be solved and neither "scaling problems" nor "network paralysis" occur during the learning phase. It is concluded that the different components of the control can successfully co-operate in finding the "proper" system model even in the case of very rough initial model estimation and external interaction.

关键词： Robot control Fuzzy control Artificial neural networks Motion control Adaptive control Robotics and automation Automatic control Space technology Programmable control Information technology

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