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IEEJ Transactions on Electronics, Information and Systems 2009年第4期129卷 614-619+6页

作者： Wang, Bei Sugi, Takenao Kawana, Fusae Wang, Xingyu Nakamura, Masatoshi Department of Advanced Systems Control Engineering Graduate School of Science and Engineering Saga University Honjomachi Saga 840-8502 Japan Department of Automation School of Information Science and Engineering East China University of Science and Technology 130 Meilong St. Shanghai 200237 China Department of Electrical and Electronic Engineering Faculty of Science and Engineering Saga University Honjomachi Saga 840-8502 Japan Department of Clinical Physiology Toranomon Hospital 2-2-2 Toranomon Minato-ku Tokyo 105-8407 Japan

In this study, an expert knowledge-based automatic sleep stage determination system working on a multivalued decision making method is developed. Visual inspection by a qualified clinician is adopted to obtain the expert knowledge database. The expert knowledge database consists of probability density functions of parameters for various sleep stages. Sleep stages are determined automatically according to the conditional probability. Totally, four subjects were participated. The automatic sleep stage determination results showed close agreements with the visual inspection on sleep stages of awake, REM (rapid eye movement), light sleep and deep sleep. The constructed expert knowledge database reflects the distributions of characteristic parameters which can be adaptive to variable sleep data in hospitals. The developed automatic determination technique based on expert knowledge of visual inspection can be an assistant tool enabling further inspection of sleep disorder cases for clinical practice. © 2009 The Institute of Electrical Engineers of Japan.

关键词： Probability density function

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Comparison of Fuzzy control Rules Using MATLAB Toolbox and Simulink for DC Induction Motor-Speed control

Comparison of Fuzzy Control Rules Using MATLAB Toolbox and S...

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International Conference of Soft Computing and Pattern Recognition (SOCPAR)

作者： Mohd Shahrieel Mohd Aras Syed Najib Bin Syed Salim Eric Chee Sai Hoo Intan Azmira binti Wan Abd Razak Mohd Hendra bin Hairi Department of Mechatronics Faculty of Electrical Engineering UTeM Malacca Malaysia Faculty of Electrical Engineering UTeM Malacca Malaysia Department of Power Faculty of Electrical Engineering UTeM Malacca Malaysia Department of Control & Automation Faculty of Electrical Engineering UTeM Malacca Malaysia

This paper presents a fuzzy logic control for a speed control of DC induction motor. The simulation developed by using Fuzzy MATLAB Toolbox and SIMULINK. The fuzzy logic controller is also introduced to the system for keeping the motor speed to be constant when the load varies. Because of the low maintenance and robustness induction motors have many applications in the industries. The speed control of induction motor is more important to achieve maximum torque and efficiency. The result of the 3×3 matrix fuzzy control rules and 5×5 matrix fuzzy control rules of the theta and speed will do comparison in this paper. Observation the effects of the fuzzy control rules on the performance of the DC-induction motor-speed control.

关键词： Fuzzy control MATLAB Shape Curve fitting Phase detection Image segmentation Iterative algorithms Pattern recognition Information science Data mining

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Review of prognostic problem in condition-based maintenance 10

Review of prognostic problem in condition-based maintenance

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2009 10th European control Conference, ECC 2009

作者： Dragomir, Otilia Elena Gouriveau, Rafael Dragomir, Florin Minca, Eugenia Zerhouni, Noureddine Valahia University of Târgoviste Electrical Engineering Faculty Automation and Information Department Unirii Avenue 18-20 Târgoviste Romania FEMTO-ST Institute CNRS - UFC Automatic Control and Micro-Mechatronic Systems Department 24 rue Alain Savary Besançon25000 France

ISBN: (纸本)9783952417393

Prognostic is nowadays recognized as a key feature in maintenance strategies as it should allow avoiding inopportune maintenance spending. Real prognostic systems are however scarce in industry. That can be explained from different aspects, on of them being the difficulty of choosing an efficient technology: many approaches to support the prognostic process exist, whose applicability is highly dependent on industrial constraints. Thus, the general purpose of the paper is to explore the way of performing failure prognostics so that manager can act consequently. Different aspects of prognostic are discussed. The prognostic process is (re)defined and an overview of prognostic metrics is given. Following that, the 'prognostic approaches' are described. The whole aims at giving an overview of the prognostic area, both from the academic and industrial points of views. © 2009 EUCA.

关键词： Condition based maintenance

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Adaptive sliding mode control for Takagi-Sugeno fuzzy systems

Adaptive sliding mode control for Takagi-Sugeno fuzzy system...

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48th IEEE Conference on Decision and control held jointly with 2009 28th Chinese control Conference, CDC/CCC 2009

作者： Zhang, Jinhui Shi, Peng Xia, Yuanqing Fu, Mengyin Key Laboratory of Complex System Intelligent Control and Decision School of Automation Beijing Institute of Technology Beijing 100081 China Faculty of Advanced Technology University of Glamorgan Pontypridd CF37 1DL United Kingdom School of Engineering and Science Victoria University Australia

ISBN: (纸本)9781424438716

This paper is devoted to robust adaptive sliding mode control for a class of nonlinear systems in the Takagi-Sugeno forms with mismatched parametric uncertainties. Sufficient conditions for the existence of linear sliding surfaces are given in terms of linear matrix inequalities, by which the corresponding adaptive reaching motion controller is also designed. Simulation studies show the effectiveness of the control scheme. ©2009 IEEE.

关键词： Linear matrix inequalities

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Direction of sound wave arrival determination using time-delay estimation and beamforming methods

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WSEAS Transactions on Circuits and Systems 2009年第12期8卷 893-904页

作者： Dostálek, Petr Vašek, Vladimír Dolinay, Jan Department of Automation and Control Engineering Tomas Bata University in Zlín Faculty of Applied Informatics Nad Stráněmi 4511 760 05 Zlín Czech Republic

This paper deals with direction of sound wave arrival determination using time-delay estimation and beamforming methods with utilization of static microphone array with fixed geometry configuration. Theoretical part describes main principle of both methods and possibility of program implementation. Experimental part proposes hardware design of the sensory systems separately for time-delay estimation and beamforming evaluation methods due to different requirements on microphone array structure. Developed localization system is based on standard personal computer equipped with Advantech PCI-1716 multichannel data acquisition device.

关键词： Beamforming

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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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IEEE 7th International Conference on Computational Cybernetics, ICCC 2009

作者： Soumelidis, Alexandros Bokor, József Schipp, Ferenc Computer and Automation Research Institute Hungarian Academy of Sciences Kende 13-17 Budapest H-1111 Hungary Computer and Automation Research Institute Control Engineering Research Group Hungarian Academy of Sciences Kende 13-17 Budapest H-1111 Hungary Department of Numerical Analysis Faculty of Informatics Eötvös Loránd University Pazmany Peter Setany 1/C Budapest H-1117 Hungary

ISBN: (纸本)9781424453115

This paper investigates signal and system representations in special rational orthogonal bases of the Hardy space H2. 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. ©2009IEEE.

关键词： State space methods

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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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LMI based design for the Acrobot walking 9th

LMI based design for the Acrobot walking

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9th IFAC Symposium on Robot control, SYROCO 2009

作者： Anderle, Milan Čelikovský, Sergej Henrion, Didier Zikmund, Jirǎí Czech Technical University in Prague Faculty of Electrical Engineering Department of Control Engineering Technická 2 Prague166 27 Czech Republic Institute of Information Theory and Automation Academy of Sciences of the Czech Republic Pod vodárenskou věží 4 Prague182 08 Czech Republic LAAS-CNRS University of Toulouse 7 avenue du colonel Roche Toulouse31077 France

ISBN: (纸本)9781617825583

This paper aims to further improve previously developed design for Acrobot walking based on partial exact feedback linearization of order 3. Namely, such an exact system transformation leads to an almost linear system where error dynamics along trajectory to be tracked is a 4-dimensional linear time-varying system having 3 time-varying entries only, the remaining entries being either zero or one. In such a way, exponentially stable tracking can be obtained by quadratically stabilizing a linear system with polytopic uncertainty. The current improvement is based on applying LMI methods to solve this problem numerically. This careful analysis significantly improves previously known approaches. Numerical simulations of Acrobot walking based on the above mentioned LMI design are demonstrated as well.

关键词： Linear matrix inequalities

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Anti-synchronization chaos shift keying method: error derivative detection improvement. *

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IFAC Proceedings Volumes 2009年第7期42卷 128-133页

作者： Sergej Ĉelikovský Volodymyr Lynnyk Institute of Information Theory and Automation Academy of Sciences of the Czech Republic P.O. Box 18 182 08 Prague 8 Czech Republic Department of Control Engineering Faculty of Electrical Engineering Czech Technical University in Prague Czech Republic

This paper studies a new modification of the anti-synchronization chaos shift keying scheme for the secure encryption and decryption of data. A new concept of the detection of the correct/incorect binary value in the receiver is used. The method proposed here requires very reasonable amount of data to encrypt and time to decrypt a single bit. Basically, to encrypt a single bit, only one iteration is needed. Moreover, the security of this method is systematically investigated showing its good resistance to typical decryption attacks. Theoretical results are supported by the numerical simulations.

关键词： Nonlinear system chaos shift keying generalized Lorenz system synchronization anti-synchronization secure communication

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Efficient chaos shift keying method based on the second error derivative anti-synchronization detection

Efficient chaos shift keying method based on the second erro...

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International Conference on control and automation (ICCA)

作者： Sergej Čelikovský Volodymyr Lynnyk Institute of Information Theory and Automation Academy of Sciences슠of the슠Czech Republic Prague Czech Republic Department of Control Engineering Faculty of Electrical Engineering Czech Technical University Czech Republic

This paper studies yet another improvement of the anti-synchronization chaos shift keying scheme for the secure encryption and decryption of the digital data. A new concept of the detection of the correct binary value in the receiver is introduced here. The proposed method requires very reasonable amount of data to encrypt and time to decrypt one bit. Basically, to encrypt one bit, only one iteration (i.e. only one real number of 6 valid digits) is needed. At the same time, thanks to the anti-synchronization detection based on the synchronization error second derivative, almost 100% of the carrying chaotic signal can be used. The security of the proposed method can be systematically investigated showing its good resistance against typical decryption attacks. The theoretical analysis of the introduced method is supported by the numerical experiments with digital data encryption.

关键词： Chaos Cryptography automation Frequency synchronization Data security Automatic control Error correction Signal analysis control engineering System testing

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