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2009 10th European Control Conference, ECC 2009

作者： Luspay, T. Kulcsar, B. Van Wingerden, J.W. Verhaegen, M. Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13.-17 BudapestH-1111 Hungary Delft Center for System and Control Faculty of Mechanical Maritime and Materials Engineering Technical University of Delft Mekelweg 2 Delft Netherlands

ISBN: (纸本)9783952417393

关键词： LPV Identification Linear Parameter Varying (LPV) systems freeway traffic modeling Traffic flow Authentication Subspace systems comparison Loop detector nonlinearity Flow models

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Noninvasive Continuous Blood Pressure Measurement and GPS Position Monitoring of Patients

Noninvasive Continuous Blood Pressure Measurement and GPS Po...

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IEEE Conference on Vehicular Technology (VTC)

作者： Ondrej Krejcar Zdenek Slanina Jan Stambachr Petr Silber Robert Frischer Department of Measurement and Control Faculty of Electrical Engineering and Computer Science Technical University of Ostrava Ostrava Czech Republic Department of Automation and Computing in Metallurgy Faculty of Metallurgy And Materials Engineering Technical University of Ostrava Ostrava Czech Republic

ISBN: (纸本)9781424425143

Need of blood pressure measurement is usable in wide spectrum of applications from physicians offices to home care applications. Many types of blood pressure measurement devices can be bought in electronics shops. All such devices are measurement devices which need to be in contact with human body (hand or foot mainly). Further they allow only one measurement per several minutes interval (typically 10 minutes). Our goal is to develop a small device for noninvasive continuous measurement of blood pressure. This device must be a small battery powered embedded system which measures a blood pressure during a long time period and sends this information to remote operator's stations. In this station the analysis of receiving video data is made for several types of usage. In current state we develop a small device to scan a video or a set of images with the NIR (Near Infra Red) CCD camera. The video data are transferred by wireless connection to the computer where they are analyzed. The first results provide an indication to be a right way to obtain exact continuous blood pressure information. In the future there exists a way to integrate this blood pressure measurement system to concurrently developed biotelemetric system architecture for patients and physicians called Guardian. For position monitoring in outdoor areas there is developed GPS module which informs about patient location and brings very precise time basis for other measuring modules of Guardian system and time synchronization.

关键词： Blood pressure Biomedical monitoring Position measurement Pressure measurement Global Positioning System Patient monitoring Battery charge measurement Time measurement Humans Foot

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Distributed state and unknown input estimation for freeway traffic flow models 10

Distributed state and unknown input estimation for freeway t...

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2009 10th European Control Conference, ECC 2009

作者： Luspay, T. Kulcsar, B. Tettamanti, T. Varga, I. Bokor, J. Systems and Control Laboratory Computer and Automation Research Institute HAS Kende u. 13.-17 BudapestH-1111 Hungary Delft Center for System and Control Faculty of Mechanical Maritime and Materials Engineering Technical University of Delft Mekelweg 2 Delft Netherlands Department of Control and Transport Automation Budapest University of Technology and Economics Bertalan L. u. 2 BudapestH-1111 Hungary

ISBN: (纸本)9783952417393

The paper presents a joint state and unmeasured input estimation technique for a special class of nonlinear second order macroscopic traffic model. The freeway traffic system is transformed into a quasi and affine approximate Lin- ear Parameter Varying (LPV) form. Observer design technique is formulated using off-line optimization problem subjected to Linear Matrix Inequality (LMI) conditions, considering uncertain scheduling parameters. Furthermore, locally designed state estimators are interconnected to cover multiple freeway sections. The elaborated method is validated using real traffic measurements. © 2009 EUCA.

关键词： Linear matrix inequalities

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Estimating the State of Distributed Dynamical Systems Based on Limited Measurements by means of Cooperative Filtering with Application to ad-hoc Vehicle Network

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IFAC Proceedings Volumes 2009年第8期42卷 929-934页

作者： A. Edelmayer M. Miranda Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13-17 H-1111 Budapest Hungary Faculty of Engineering University of Los Andes Mérida Venezuela

In this paper a decentralized approach to state estimation of distributed dynamical systems over unreliable communication network subject to uncertain and limited measurements is addressed. Specifically, a distributed filtering concept for enhancing the estimation accuracy of vehicles state from uncertain position data in ad-hoc vehicle networks is presented. The filter relies on a variety of position measurements obtained from the on-board vehicle positioning system, from other nearby cooperating vehicles, as well as from the immediate roadside environment via communication. Direct distance measurements between vehicles as well as between vehicles and the static elements of the roadside infrastructure can be used, if available, as highly accurate reference measurements. The paper demonstrates how successfully the idea of cooperative filtering in addressing the demands of both sensor fault tolerance and enhanced estimation accuracy in distributed systems over ad-hoc communication networks can be used.

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Research on Infrared Breath Alcohol Test Based on Differential Absorption

Research on Infrared Breath Alcohol Test Based on Differenti...

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International Conference on Information Science and engineering (ICISE)

作者： Ren-wang Li Ye-pan Xiong Yong-jian Wang Fen Wan Faculty of Mechanical Engineering & Automation Zhejiang Science and Technology University Hangzhou Zhejiang China School of Computer Science and Technology North China Electric Power University Beijing China

ISBN: (纸本)9781424449095

An infrared alcohol testing system based on differential absorption is presented. The technique relies on the fact that the breath alcohol gas has a unique, well-defined absorption characteristic within the infrared region of electromagnetic spectrum. It is used to detect the present and concentration of alcohol gas. The non-dispersive infrared gas detection principle is introduced in detail. Experiments show that the testing system has high precision, good environment adaptability, and its indication error and repeatability reach the China National Standards.

关键词： Electromagnetic wave absorption Ethanol System testing Infrared spectra Automatic testing Infrared detectors Road accidents Fuel cells Real time systems Optical attenuators

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Signal and system representations on hyperbolic groups: Beyond rational orthogonal bases

Signal and system representations on hyperbolic groups: Beyo...

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International Conference on Computational Cybernetics (ICCC)

作者： Alexandros Soumelidis József Bokor Ferenc Schipp Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary Computer and Automation Research Institute and Control Engineering Research Group Hungarian Academy of Sciences (ATOMKI) Budapest Hungary Department of Numerical Analysis Faculty of Informatics Eötvös Lonránd University Budapest Hungary

This paper investigates signal and system representations in special rational orthogonal bases of the Hardy space H 2 . These bases are derived from the Blaschke-group associated to the hyperbolic group SH(n) of matrices. Using the concept of the unitary group representations over H 2 , and the voice-transform, specific hyperbolic wavelet constructions - Blaschke-wavelets and the associated Blaschke-Fourier transform are constructed. State space representations of systems over hyperbolic groups are discussed, too, with the purpose to explore the perspectives of elaborating a unified system theory upon this conceptual base.

关键词： Risk management Decision making Fuzzy sets Uncertainty Fuzzy set theory Reliability engineering Risk analysis Cybernetics Fuzzy systems Informatics

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Stability of Fuzzy Matrix Games for Conflicts: A Model with Uncertainty Preference Scheme

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IFAC Proceedings Volumes 2009年第25期42卷 54-56页

作者： G. Stojanovski M.J. Stankovski G.M. Dimirovski Cyril & Methodius University Faculty of EE & IT Institute of Automation & Systems Engineering Karpos 2 BB MK-1000 Skopje R. Macedonia (Phone: +389-2-3363566/150 ) Dogus University Faculty of Engineering Department of Computer Engineering Acibadem Zeamet Sk 21 TR-34722 Istanbul R. Turkey (Phone: +90-216-5445555/1202

In societal system disputes and in direct conflict of interests, in particular, the decision making faces a basic situation resembles a combat-like situation (Figure 1). For each of the opponents (‘players’) has in mind and carries out own missions in the societal environment (Figure 2) Furthermore, two or more parties need to make decisions with fully or partially conflicting objectives when involved in a dispute or open conflict. And yet, by and large, decisions must be made under risk, uncertainty, and incomplete or fuzzy information based on adaptive perception knowledge (Figure 3), which may imply large amounts of linguistic and probabilistic information with missing data. In the case of two opponents, the synergy of fuzzy approach and matrix games seems rather effective for modelling such multi-criteria conflicting situations. This synergy is feasible provide the game equilibrium stability concept is conceived in compliance with an adequate uncertainty preference scheme of decision making. In the case of two scenarios or states of a conflict, the preference scheme for a given participating decision-maker has to include components for handling cases of one state strict preference over another state, equal preference between the states, and also uncertainty preference. The fuzzy modelling based procedure is employed to take into account some of the subjective attitudes of the decision makers that are difficult to model using classical game theory.

关键词： Decision preference scheme decision making games fuzzy games fuzzy logic matrix games

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Fuzzy Matrix Game Perspective for Problems of Cooperation, Non-Cooperation, and Conflicts

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IFAC Proceedings Volumes 2009年第25期42卷 48-53页

作者： V. Ojleska T.D. Kolemisevska-Gugulovska G.M. Dimirovski SS Cyril & Methodius University Faculty of EE & IT Inst. of Automation & Syst. Engineering Karpos 2 BB. MK-1000 Skopje R. Macedonia (phone: +389-2-3363566 ) Dogus University Faculty of Engineering Dept. of Computer Engineering Acibadem Zeamet Sk 2.1 TR-34722 Istanbul R. Turkey (phone: +90-216-5445555

In societal applications of systems science where competition under conflicting interests is pertinent to, the decision making faces situations in which one must decide whether to cooperate or not with a competitor or opponent. Each of the opponents (‘players’) has as well as carries own missions within the society out. At least two if not more parties need to make decisions under fully or partially conflicting objectives when involved in a dispute or open conflict. By and large decisions must be made under risk, uncertainty, and incomplete or fuzzy information implying large amounts of linguistic and probabilistic information. For cases of two opponents, the synergy of fuzzy control approach and matrix games seems rather effective to represent and find solutions for such multi-criteria conflicting situations. The fuzzy procedure is used to take into account some of the subjective attitudes of the decision makers that are difficult to model using classical game theory.

关键词： Decision making decision preference scheme games fuzzy games possibility measure matrix games

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Segmentation of abdominal aortic aneurysms in CT images using a radial model approach

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10th International Conference on Intelligent Data engineering and Automated Learning, IDEAL 2009

作者： MacÍa, Iván Legarreta, Jon Haitz Paloc, Céline Graña, Manuel Maiora, Josu García, Guillermo De Blas, Mariano Biomedical Applications Department Vicomtech Donostia-San Sebastián Spain Computational Intelligence Group Computer Science Faculty University of the Basque Country Donostia-SanSebastián Spain Electronics and Telecommunications Department Technical University School University of the Basque Country Donostia-San Sebastián Spain Engineering Systems and Automation Engineering Department Technical University School University of the Basque Country Donostia-San Sebastián Spain Interventional Radiology Service Donostia Hospital Donostia-SanSebastián Spain

ISBN: (纸本)3642043933

Abdominal Aortic Aneurysm (AAA) is a dangerous condition where the weakening of the aortic wall leads to its deformation and the generation of a thrombus. To prevent a possible rupture of the aortic wall, AAAs can be treated non-invasively by means of the Endovascular Aneurysm Repair technique (EVAR), which consists of placing a stent-graft inside the aorta in order to exclude the bulge from the blood circulation and usually leads to its contraction. Nevertheless, the bulge may continue to grow without any apparent leak. In order to effectively assess the changes experienced after surgery, it is necessary to segment the aneurysm, which is a very time-consuming task. Here we describe the initial results of a novel model-based approach for the semi-automatic segmentation of both the lumen and the thrombus of AAAs, using radial functions constrained by a priori knowledge and spatial coherency. © 2009 Springer Berlin Heidelberg.

关键词： Repair

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Adaptive Robust H_(infinity) Control of the Generator Excitation System

Adaptive Robust H_(infinity) Control of the Generator Excita...

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2009 American Control Conference (ACC 2009)

作者： Li-Ying Sun Jiaxin Feng Georgi M. Dimirovski Jun Zhao Key Laboratory of Integrated Automation of Process Industry Ministry of Education Northeastern University Shenyang Liaoning 110004 P.R. of China School of Information Management and Engineering Shanghai University of Finance & Economics Shanghai 200433 P.R. of China Department of Computer Engineering Faculty of Engineering Dogus University Acibadem Kadikoy TR-34722 Istanbul Rep. of Turkey

ISBN: (纸本)9781424445233

The robust H_(infinity) control problem for the generator excitation system with the damping coefficient uncertainty and external disturbances, is addressed. Storage functions of the control system are constructed based on modified adaptive backstepping sliding mode control method and Lyapunov method. A nonlinear robust H_(infinity) controller and a parameter updating law are obtained simultaneously. The controller can not only attenuate the influences of external disturbances on the system output, but also has strong robustness for system parameters variation. Since the controller design is based completely on the nonlinear dynamic system without any linearization, the nonlinear property of the dynamic system is well preserved. The simulation results show that more rapid speed response and stronger robustness can be obtained by the proposed method than the conventional adaptive backstepping and adaptive backstepping sliding mode control methods.

关键词： generator excitation system external disturbance output(systems) controller design Backstepping Nonlinear dynamic systems Self tuning control systems Simulation results Dynamic systems Variable structure systems Robustness

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