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2007 Mediterranean Conference on control and automation, MED

作者： Dlapa, M. Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University in Zlin Zlín Czech Republic

ISBN: (纸本)142441282X

The paper deals with design of a robust controller via algebraic μ-synthesis for two tank system, which is a well known benchmark problem. The controller is designed by decoupling two-input two-output system into two identical SISO (Single-Input Single-Output) plants. The task of designing the robust controller is then performed by finding a suitable pole placement for the SISO systems with the robustness assessed by structured singular value denoted μ for generalized plant. The final controller is compared with D-K iteration as a standard tool for μ-synthesis through simulation for nominal plant and plant perturbed by the worst case perturbation. © 2007 IEEE.

关键词： controllers

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Decoupled control of two tank system via algebraic μ-synthesis

Decoupled control of two tank system via algebraic μ-synthe...

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Mediterranean Conference on control and automation (MED)

作者： M. Dlapa Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University Zlin Zlin Czech Republic

The paper deals with design of a robust controller via algebraic mu-synthesis for two tank system, which is a well known benchmark problem. The controller is designed by decoupling two-input two-output system into two identical SISO (Single-Input Single-Output) plants. The task of designing the robust controller is then performed by finding a suitable pole placement for the SISO systems with the robustness assessed by structured singular value denoted mu for generalized plant. The final controller is compared with D-K iteration as a standard tool for mu-synthesis through simulation for nominal plant and plant perturbed by the worst case perturbation.

关键词： control systems Robust control MIMO Automatic control State feedback Valves Temperature Transfer functions Design automation control engineering

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LPV modeling of type 1 diabetes mellitus

LPV modeling of type 1 diabetes mellitus

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8th International Symposium of Hungarian Researchers on Computational Intelligence and informatics, CINTI 2007

作者： Kovács, Levente Kulcsár, Balázs Department of Control Engineering and Information Technology Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economics Magyar tudósok krt. 2 H-1117 Budapest Hungary Department of Transport Automation Faculty of Transportation Engineering Budapest University of Technology and Economics Hungary

The paper investigates the possibility of modeling the highly nonlinear and very complex Sorensen model, [1], of Type 1 diabetic patients using the polytopic LPV modeling possibility. It is illustrated that the LPV model is working correctly only in the considered polytope region, but inside it is approximating well the nonlinear model.

关键词： Diabetes mellitus Glucose-insulin control LPV control Polytope region

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Design and Practical Application of Simple Robust controllers: A Parametric Approach

Design and Practical Application of Simple Robust Controller...

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IEEE Conference on control Technology and Applications (CCTA)

作者： Radek Matusu Roman Prokop Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University in Zlín Zlin Czech Republic

The contribution is focused on brief description of proposed control design process and primarily on practical application of obtained simple robust control algorithms. The synthesis is based on general solutions of Diophantine equations in the ring of proper and stable rational functions, Youla-Kucera parameterization and divisibility conditions and one of its main advantages can be seen in existence of single scalar tuning parameter. The real-time control behaviour has been tested on laboratory model of hot-air tunnel which has been mathematically described by various transfer functions containing parametric type of uncertainty.

关键词： Robust control control systems Uncertainty Tuning Transfer functions Optimal control control design control system synthesis Equations Testing

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Complete multimedia educational program of a dc servo system for distant learning

Complete multimedia educational program of a dc servo system...

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8th International Symposium of Hungarian Researchers on Computational Intelligence and informatics, CINTI 2007

作者： Sziebig, Gábor Hao, Chen Nagy, Lóránt Korondi, Péter Department of Automation and Applied Informatics Budapest University of Technology and Economics Hungary Scientific and Technological Office China University of Mining and Technology China Kandó Kálmán Faculty of Electrical Engineering Budapest Tech Hungary

The paper presents a complete (animation, simulation and internet-based measurement) multimedia educational program of DC servo system for distant learning. The animation program includes screens for teaching in class and for individual study as well. The final and most important step in any kind of education in the field engineering is the measurement. This is the most challenging step in distant learning. The students should enter to a web page to access the experimental set up. The administration, queuing arranged by a framework. A DC drive can be switch on and off via internet. The students can write a simple controller program which is inserted into the communication frame program to operate the servo motor.

关键词： Sliding mode control

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New special system of polynomial equations for 3-phase multilevel voltage converter derived from the PWM problem for 1-phase inverters 9

New special system of polynomial equations for 3-phase multi...

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2007 9th European control Conference, ECC 2007

作者： Kujan, Petr Sebek, Michael Hromcik, Martin Department of Control Engineering Faculty of Electrical Engineering Czech Technical University in Prague Prague Czech Republic Institute of Information Theory and Automation Czech Academy of Sciences Prague Czech Republic Centre for Applied Cybernetics Faculty of Electrical Engineering Czech Technical University in Prague Prague Czech Republic

ISBN: (纸本)9783952417386

This paper presents a new construction method of a new set of polynomial equations leading to the optimal solution of switching angles which minimize the total harmonic distortion (THD) of a three-phase multilevel converter. The number of equations obtained by this method is lower compared to previous methods. It is possible to solve the problem more simply. This method is based on analytical solution of the PWM problem in single-phase connection which is very fast and efficient and gives the conjunction between both problems. © 2007 EUCA.

关键词： Pulse width modulation

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Off-line signature verification : Comparison of stroke extraction methods

Off-line signature verification : Comparison of stroke extra...

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2nd International Conference on Software and Data Technologies, ICSOFT 2007

作者： Kovári, Bence Horváth, Áron Kertész, Zsolt Illés, Csaba Department of Automation and Applied Informatics Budapest University of Technology and Economics Goldman György tér 3 Budapest Hungary Department of Control Engineering and Information Technology Budapest University of Technology and Economics Magyar Tudósok Körútja 2 Budapest Hungary

Stroke extraction is a necessary part of the majority of semantic based off-line signature verification systems. This paper discusses some stroke extraction variants which can be efficiently used in such environments. First the different aspects and problems of signature verification are discussed in conjunction with off-line analysis methods. It is shown, that on-line analysis methods perform usually better than off-line methods because they can make use of the temporal information (and thereby get a better perception of the semantics of the signature). To improve the accuracy of off-line signature verification methods the extraction of semantic information is necessary. Three different approaches are introduced to reconstruct the original strokes of a signature. One purely based on simple image processing algorithms, one with some more intelligent processing and one with a pen model. The methods are examined and compared with regard to their benefits and drawbacks on further signature processing.

关键词： Semantics

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Communication and Knowledge Intensive engineering Modeling in Virtual Spaces

Communication and Knowledge Intensive Engineering Modeling i...

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International Symposium on applied Computational Intelligence and informatics ( SACI)

作者： Laszlo Horvath Imre J. Rudas Simona Vaivoda Zsuzsa Preitl Institute of Intelligent Engineering Systems John von Neumann Faculty of Informatics Budapest Hungary Department of Automation and Applied Informatics Fac. of Automation and Computer Science Polytechnic University of Timisoara Timisoara Romania

engineering for development, production, and other product related company activities are being organized in virtual systems for lifecycle management of product data. This new age of engineering is a result of the continuous development for step-by-step moving of product design, analysis and other production engineering activities from conventional environments to modeling environments during the eighties and nineties. However, more developments were needed in knowledge based decision assistance in order to realize modeling of human intent, increasingly complex product structures, and efficient communication of product data. In recent years, a great change of engineering methodology and software produced program products in knowledge technology and advanced local and global communication. Group work of engineers is increasingly organized around special portals for engineering on the Internet. Although intensive research activities produced outstanding methods in knowledge-based solutions for engineering, these methods have not widespread in the industrial modeling practice. This paper attempts to evaluate the possibility that recent communication and knowledge intensive engineering modeling can be developed into communication and knowledge intensive virtual space technology. Paper starts with a discussion on integrated application of different groups of product modeling techniques. Following this, methods are evaluated for the management of product data (PDM). Next section emphasizes aspects, contexts, and intents as primary issues in modeling for relationships in product data and decisions by engineers. Finally, methods for the management of engineering activities for lifecycle of products are summarized, considering communities of engineers around Internet portals.

关键词： Knowledge engineering Data engineering engineering management Portals Internet Production systems Design engineering Product design Production engineering Humans

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Off-Line Signature Verification Based on Feature Matching

Off-Line Signature Verification Based on Feature Matching

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IEEE International Conference on Intelligent engineering Systems (INES)

作者： Bence Kovari Zsolt Kertesz Attila Major Department of Automation and Applied Informatics Budapest University슠of슠Technology슠and슠Economics Hungary Department of Control Engineering and Information Technology Budapest University슠of슠Technology슠and슠Economics Hungary

This paper presents a novel approach for off-line signature verification. First the different aspects and problems of signature verification are discussed in conjunction with off-line analysis methods. It is shown, that on-line analysis methods perform usually better than off-line methods because they can make use of the temporal information (and thereby get a better perception of the semantics of the signature). An assumption is made, that off-line verification methods have difficulties improving their results because of the high level of abstraction they use, which is a direct consequence of the missing semantics. Afterwards a solution is presented with the ability to preserve some semantic information, and thereby deliver a better ability to analyze the results and optimize the system.

关键词： Handwriting recognition Data acquisition Feature extraction Information analysis automation informatics control engineering Information technology Error analysis Law

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MULTI-ROBOT SYSTEMS: FROM FINITE AUTOMATA TO MULTI-AGENT SYSTEMS

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IFAC Proceedings Volumes 2007年第18期40卷 121-126页

作者： Doru Panescu ştefan Dumbrava “Gh. Asachi” Technical University of Iaşi Faculty of Automatic Control and Computer Engineering Department of Automatic Control and Applied Informatics Bd. D. Mangeron 53 A Iaşi Romania dorup@ac.tuiasi.ro sdumbrav@ac.tuiasi.ro

An attempt to connect finite automata theory with multi-agent systems is presented. The purpose is to obtain an accurate way to plan and control the robot activities within a multi-robot system. The proposed model is an adapted Moore machine, which is to be used with a contract net protocol agent coordination procedure. The considered architecture was tested in an educational flexible manufacturing system with two industrial robots.

关键词： Robotics multi-robot systems multi-agent systems robot programming finite automata flexible manufacturing systems

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