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Royal Academy of Medicine in Ireland - Section of Bioengineering - Proceedings of meeting held in Dundalk, Co. Louth, in February 1998.

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IRISH JOURNAL OF MEDICAL SCIENCE 1998年第4期167卷 256-276页

作者： [Anonymous] Orthopaedic Research Unit The Queen’s University of Belfast School of Biomedical Sciences The Queen’s University of Belfast Howmedica International Ltd. Raheen Industrial Estate Limerick Department of Mechanical Engineering Trinity College Dublin 2 Mater Hospital Dublin 7 Orthopaedic Research Laboratory Århus University Hospital Denmark University of Limerick Limerick Limerick Regional Hospital Raheen Limerick Boston Scientific Ireland Ltd. Galway Department of Mechanical Engineering University College Dublin Dublin Department of Electrical and Electronic Engineering University College Dublin Dublin Bioengineering Research Centre Department of Mechanical Engineering University College Dublin Dublin Northern Ireland Bio-Engineering Centre (NIBEC) School of Electrical and Mechanical Engineering University of Ulster Newtownabbey Department of Mechanical & Manufacturing Engineering The Ashby Building The Queen’s University of Belfast Johnson and Johnson Professional Orthopaedic Division Queensway England Department of Cardiology and Department of Medical Physics & Bioengineering St. James’s Hospital Dublin 8 Burke House Ellison Street Castlebar Royal College of Surgeons in Ireland Department of Surgery Beaumont Hospital Dublin Department of Electronic and Electrical Engineering Trinity College Dublin 2 Department of Aeronautical Engineering The Queen’s University of Belfast Vascular Unit Belfast City Hospital Department of Medical Physics and Bioengineering St. James’s Hospital Dublin 8 Centre for Biomedical Electronics Department of Electronic and Computer Engineering University of Limerick Limerick Department of Mechanical and Aeronautical Engineering University of Limerick Limerick School of Health Sciences University of Ulster Ireland School of Physiotherapy University of Ulster Newtownabbey Clinical Engineering NI Medical Physics Agency Belfast and Radiology Royal Victoria Hospital Musgrave Park Hospital University of Limerick Biomedical Institute (ULBMI) Uni

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A sensitivity-based analysis of weighted fuzzy aggregation

A sensitivity-based analysis of weighted fuzzy aggregation

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IEEE International Conference on Fuzzy systems (FUZZ-IEEE)

作者： U. Kaymak H.R. van Nauta Lemke T. den Boer Shell International Exploration and Production Rijswijk Netherlands Faculty of Information Technology and Systems Department of Electrical Engineering Control Laboratory Delft University of Technnology Delft Netherlands

Weighted aggregation of information in fuzzy set theory is considered The weighted aggregation plays an important role, especially in fuzzy decision making, where the decision criteria can have different degrees of importance. The weight factors, however, can not be used with most aggregation operators such as t-norms and t-conorms that are used in fuzzy set theory. The paper introduces a general framework based on sensitivity analysis for extending fuzzy set aggregation operators to their weighted counterparts. As an example, the framework is applied to the extension of t-norms to their weighted counterparts. It is shown that some of the methods that have been suggested in literature for weighted aggregation with t-norms apply only in particular situations. Conditions are given under which the previously proposed methods are valid.

关键词： Fuzzy set theory Fuzzy sets Decision making Sensitivity analysis Information technology control systems Laboratories Set theory Fuzzy systems Aggregates

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Guided anti-tank missile control training simulator design via object-oriented modelling

Guided anti-tank missile control training simulator design v...

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UKACC International Conference on control '98 (Conf. Publ. No. 455)

作者： D.D. Mohenski G.M. Dimirovski S.M. Deskovski Department of Information & Control Systems U.S. Military Academy Skopje Macedonia ASE Institute Faculty of Electrical Engineering Ss Cyril and Methodius University Skopje Macedonia

A PC platform based training simulator for personnel on anti-tank guided missile (ATOM) systems has been designed and implemented as a complex system which is controlled by instructor-trainee interaction. It makes use of object oriented simulation modelling, a 6 DOF missile model and mask modelling of terrain and weather conditions. To cope with the system complexity, both a modular design of the system and its subsystems is adopted, and an object-oriented programming is applied. A fully elaborated set of compatible models and respective software implementations for missile and moving ground target involving their interrelated kinematics has been developed. An appropriate user-system interface has been designed to enhance instructor-trainee co-operation. It is aimed both for simulation studies of anti-tank combat (ATC) using command-to-line-of-sight (CLOS) guided missiles and for training operators of such systems. An implemented hardware-in-the-loop (HIL) element in the system is the real guidance system. Sample results for an experimental session with real-world data and situation are given.

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Exponential Tracking control of a Mobile Car Using a Cascaded Approach

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IFAC Proceedings Volumes 1998年第27期31卷 201-206页

作者： Elena Panteley Erjen Lefeber Antonio Loria Henk Nijmeijer Institute of Problems of Mech. Engg. Academy of Sciences of Russia St. Petersbourg RUSSIA Faculty of Mathematical Sciences Department of Systems Signals and Control University of Twente P.O. Box 217 7500 AE Enschede The Netherlands Center for Control Engineering and Computation (CCEC) Department of Electrical and Computer Engineering University of California Santa Barbera CA 93106-9560 USA Faculty of Mechanical Engineering Eindhoven University of Technology PO Box 513 5600 MB Eindhoven The Netherlands

In this paper we address the problem of designing simple global tracking controllers for a kinematic model of a mobile robot and a simple dynamic model of a mobile robot. For this we use a cascaded systems approach, r... 详细信息

关键词： mobile robot trajectory tracking persistency of excitation global K -exponential stabilization

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Global asymptotic stabilization of MIMO bilinear systems with undamped natural response

Global asymptotic stabilization of MIMO bilinear systems wit...

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IEEE Conference on Decision and control

作者： Guoping Lu Yufan Zheng C. Zhang Xinghuo Yu Department of .Automatic Control Yantong Institute of Technology Nantong Jiangsu China Institute of Systems Science East China Jiao Tong University Shanghai China Department of Electrical and Electronic Engineering University of Melbourne Parkville VIC Australia Faculty of Informatics and Communication Central Queensland University Rockhampton QLD Australia

ISBN: (纸本)0780343948

This paper considers the problem of globally asymptotic stabilization of multi-input multi-output bilinear systems with undamped natural response. It firstly presents a simple sufficient condition for construction of a static state feedback controller. Then under an additional condition on system detectability, two output dynamic feedback controllers with saturation bounded control are constructed. The globally asymptotic stability of the closed loop systems using these controllers are established by using Lyapunov stability approach.

关键词： MIMO Nonlinear systems control systems Transient response Sufficient conditions State feedback Adaptive control Asymptotic stability Closed loop systems Lyapunov method

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Robust exponential stability of a class of nonlinear systems 4

Robust exponential stability of a class of nonlinear systems

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4th European control Conference, ECC 1997

作者： Vesely, V. Rosinova, D. Department of Automatic Control Systems Faculty of Electrical Engineering and Information Technology Slovak Technical University Bratislava812 19 Slovakia

The paper addresses the problem of design of a robust controller for a class of nonlinear uncertain systems to guarantee the prescribed decay rate of exponential stability. The bounded deterministic uncertainties are ... 详细信息

ISBN: (纸本)9783952426906

关键词： Robust control

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Decentralized Robust Exponential Stability of Linear systems with Output Feedback

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IFAC Proceedings Volumes 1997年第21期30卷 407-412页

作者： Vojtech Veselý Slovak University of Technology Department of Automatic Control Systems Faculty of Electrical Engineering and Information Technology Bratislava Slovakia

The paper addresses the problem of robust decentralized control design which guarantee exponential stability of uncertain linear complex systems with output feedback. No matching conditions are demanded for modelling the uncertain system, where the uncertainties, which are possibly nonlinear, may appear in the subsystems as well as in the interconnections.

关键词： Decentralized control Robust control Exponential stability Lyapunov function Linear continuous-time systems

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A Robust Non-Linear control Design for a Turbogenerator

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IFAC Proceedings Volumes 1997年第21期30卷 275-280页

作者： V. Vesely J. Simovec D.P. Papadopoulos Department of Automatic Control Systems Faculty of Electrical Engineering and Information Technology Slovak University of Technology Bratislava. Department of Electrical Computer Engineering Democritos University of Thrace 67100 Xanthi Greece

In this paper is presented a new approach to robust non-linear control design, which can guarantee a prescribed decay rate of exponential stability for known system uncertainties. The proposed approach doesn’t employ matching conditions. The non-linear power system with deterministic uncertainties is chosen as demonstration example.

关键词： robust non-linear exponential stability semi-linear power system

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Fundamental research on human interface devices for physically handicapped persons

Fundamental research on human interface devices for physical...

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International Conference on Industrial Electronics, control and Instrumentation

作者： S. Fujisawa K. Ohkubo T. Nishi T. Yoshida Y. Shidama H. Yamaura Department of Systems and Control Engineering Osaka Prefectural College of Technology Neyagawa Osaka Japan Department of Electrical and Electronic Engineering Faculty of Engineering Shinshu University Nagano Japan Department of Systems and Control Engineering Osaka Prefectural College of Technology Department of Information Engineering Faculty of Engineering Shinshu University

The mouse for a personal computer is now replacing the keyboard for computer input devices, due to it's ease of use and the progress of operation systems. A mouse is easy for a nondisabled person to operate, however not so easy for a handicapped person. In particular, a cerebral paralyzed person and a proximal spine injured person often have much difficulty in dealing with a mouse or can't use it at all. However, a person with a C4 injured spinal nerve is able to bend, stretch and rotate his neck and also able to raise his shoulders because the functions of his sternodeidomastoid and trapezius muscles remain. For those people, the authors have developed an input system using neck and shoulder motions instead of manual input by a mouse. In this study, two kinds of devices using limit switches and linear potentiometers were developed and both of the results were compared. As operability has to be improved, practical usefulness for the handicapped person was confirmed. Finally, the feasibility of such systems being used for the driving wheel-chairs was examined.

关键词： Humans Mice Neck Switches Microcomputers control engineering Educational institutions Potentiometers Keyboards Computer interfaces

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Fuzzy Logic controllers and Their Replacement by a Non-Fuzzy Approximation Algorithm

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IFAC Proceedings Volumes 1997年第21期30卷 363-368页

作者： Ivan Sekaj Department of Automatic Control Systems Faculty of Electrical Engineering and Information Technology Slovak University of Technology Ilkovicova 3 812 19 Bratislava Slovak republic

As an alternative to the defuzzification a new computation method of fuzzy logic controller output is presented. In connection with this method an other procedure is proposed, which allowes to substitute also for fuzzification. It uses the same knowledge base in the form of a rule-table like the fuzzy logic controller, but without using the fuzzy logic. The proposed algorithm is simple and the results which where verified in simulation and in the real-time control as well are the same like with fuzzy logic controllers.

关键词： Fuzzy logic controller PID controller knowledge base control surface defuzzification control surface approximation fuzzy logic replacement

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