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iREP Symposium on Bulk Power System Dynamics and control

作者： M. Honarvar Nazari M. Ilić J. Peças Lopes Electrical Engineering K.N. Toosi University of Technology Iran Energy Systems Engineering Sharif University of Technology Iran Carnegie Mellon University Pittsburgh PA USA Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge MA USA University of Illinois Urbana-Champaign USA Control of Future Electricity Network Operations in the Faculty of Technology Delft University of Technnology Delft Netherlands Cornell University Ithaca NY USA Department of Electrical Engineering of the Faculty of Engineering of University of Porto Portugal

This paper investigates dynamic stability and control design of modern electric energy systems as many MW-scale distributed generators (DG) of various types are deployed in the distribution side of electric systems. The paper is mainly concerned about small-signal frequency stability of distribution systems with decentralized or centralized control systems. The Gerschgorin Circle Theory and Hicks Stability Theory are used for verifying sufficient conditions for small-signal stability. The paper also discusses about designing advanced enhancing robustness methods to ensure both safety and stability of modern distribution systems. Finally, the paper closes with a discussion of policies needed to support large penetration of DG units in distribution systems to ensure safety and robustness of the system.

关键词： Stability criteria Centralized control Power system stability Distributed control Frequency control Mathematical model

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Frequency domain surface EMG sensor fusion for estimating finger forces

Frequency domain surface EMG sensor fusion for estimating fi...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Chandrasekhar Potluri Parmod Kumar Madhavi Anugolu Alex Urfer Steve Chiu D. Subbaram Naidu Marco P. Schoen Measurement and Control Engineering Research Center MCERC Idaho State University Pocatello ID USA MCERC Idaho State University Pocatello ID USA Department of Physical and Occupational Therapy Idaho State University Pocatello ID USA Department of Electrical Engineering and Computer Science MCERC Idaho State University Pocatello ID USA Department of Mechanical Engineering MCERC Idaho State University Pocatello ID USA

Extracting or estimating skeletal hand/finger forces using surface electro myographic (sEMG) signals poses many challenges due to cross-talk, noise, and a temporal and spatially modulated signal characteristics. Normal sEMG measurements are based on single sensor data. In this paper, array sensors are used along with a proposed sensor fusion scheme that result in a simple Multi-Input-Single-Output (MISO) transfer function. Experimental data is used along with system identification to find this MISO system. A Genetic Algorithm (GA) approach is employed to optimize the characteristics of the MISO system. The proposed fusion-based approach is tested experimentally and indicates improvement in finger/hand force estimation.

关键词： Force Electromyography Muscles Transfer functions Sensor fusion Force measurement

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Application of Ada language in a Real-Time Database System - A perspective

Application of Ada language in a Real-Time Database System -...

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9th IFAC Workshop on Programmable Devices and Embedded Systems, PDES 2009

作者： Moryc, Pavel Černohorský, Jindřich Department of Measurement and Control Faculty of Electrical Engineering and Computer Science Technical University of Ostrava Ostrava Czech Republic

This paper outlines further research possibilities in the field of Real-Time Database Systems. It is based on the previous research accomplished at the Technical University of Ostrava, including the V4DB Real-Time Dat... 详细信息

ISBN: (纸本)9783902661418

关键词： Real time systems

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Comparison of nonparametric frequency estimators

Comparison of nonparametric frequency estimators

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IEEE Instrumentation and measurement Technology Conference

作者： David Slepička Dušan Agrež Rado Lapuh Emilia Nunzi Dario Petri Tomáš Radil Johan Schoukens Miloš Sedláček Department of Measurement Czech Technical University in Prague Prague Czech Republic Department of Information Engineering and Computer Science University of Trento Trento Italy Faculty of Electrical Engineering University of Ljubljana Ljubljana Slovenia Metrology Institute of the Republic of Slovenia Slovenian Institute for Quality and Metrology Ljubljana Slovenia Instituto de Telecommunicações Lisboa Portugal Dept. of Electronic Engineering and of Information University of Perugia Perugia Italy Metrology Institute of the Republic of Slovenia Solvenian Institute of Quality and Metrology Ljubljana Slovenia Dept. of Information Engineering and Computer Science University of Trento Trento Italy Department ELEC Vrije Universiteit Brussel Brussels Belgium Instituto de Telecomunicações Lisbon Portugal Department of Electronic Engineering and of Information University of Perugia Perugia Italy

This paper deals with the performance of several up-to-date nonparametric frequency estimators. The algorithms of frequency estimation are introduced and their bias, standard deviation and consumption time are compare... 详细信息

关键词： Frequency estimation Signal processing algorithms Iterative algorithms Interpolation Phase estimation Frequency measurement Metrology Uncertainty Electric variables measurement computer science

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Full scale application support on Windows Mobile devices by data prebuffering using SQL CE database

Full scale application support on Windows Mobile devices by ...

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2009 5th IEEE GCC Conference and Exhibition, GCC 2009

作者： Krejcar, Ondrej Department of Measurement Control Centre for Applied Cybernetics Faculty of Electrical Engineering and Computer Science 17. listopadu 15 708 33 Ostrava-Poruba Czech Republic

ISBN: (纸本)9781424438853

The paper deal with a mobile wireless connected devices and the problem of their slow wireless connection. The main area of interest is in a model of data prebuffering based system enhancement for locating and tracking users of our control system inside the buildings. The experimental framework prototype uses a WiFi network infrastructure to let a mobile device determine its indoor position. User location is used for data pre-buffering and pushing information from server to user's PDA. All server data are saved as artifacts (together) with its position information in building. The accessing of prebuffered data on mobile device can highly improve response time needed to view large multimedia data. On mobile device the SQL Server CE database is used. Mobile device operate with Windows Mobile 6.0 operation system which is real time. All operations in such mobile clients are deterministic.

关键词： Database systems

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Smartphone, PDA and embedded devices as mobile monitoring stations of biotelemetric system

Smartphone, PDA and embedded devices as mobile monitoring st...

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2009 5th IEEE GCC Conference and Exhibition, GCC 2009

作者： Krejcar, Ondrej Janckulik, Dalibor Martinovic, Jan Department of Measurement Control Centre for Applied Cybernetics Faculty of Electrical Engineering and Computer Science 17. listopadu 15 708 33 Ostrava-Poruba Czech Republic VSB-Technical University of Ostrava Faculty of Electrical Engineering and Computer Science Department of Computer Science 17. listopadu 15 708 33 Ostrava-Poruba Czech Republic

ISBN: (纸本)9781424438853

The main goal of our project is to provide solution which can be used in different areas of health care and which will be available through PDAs (Personal Digital Assistant), web browsers or desktop clients. The realized system deals with an ECG sensor connected to mobile equipment, such as PDA/Embedded, based on Microsoft Windows Mobile operating system. The whole system is based on the architecture of .NET Compact Framework, and Microsoft SQL Server. The project was successfully tested in real environment in cryogenic room (-136°C).

关键词： Electrocardiograms

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Kernel nonparametric weighted feature extraction for hyperspectral image classification

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IEEE Transactions on Geoscience and Remote Sensing 2009年第4期47卷 1139-1155页

作者： Kuo, Bor-Chen Li, Cheng-Hsuan Yang, Jinn-Min Graduate Institute of Educational Measurement and Statistics National Taichung University Taichung 40306 Taiwan Department of Electrical and Control Engineering National Chiao Tung University Hsinchu 300 Taiwan Department of Computer Science and Information Engineering National Chung Cheng University Chiayi 621 Taiwan

In recent years, many studies show that kernel methods are computationally efficient, robust, and stable for pattern analysis. Many kernel-based classifiers were designed and applied to classify remote-sensed data, and some results show that kernel-based classifiers have satisfying performances. Many studies about hyperspectral image classification also show that nonparametric weighted feature extraction (NWFE) is a powerful tool for extracting hyperspectral image features. However, NWFE is still based on linear transformation. In this paper, the kernel method is applied to extend NWFE to kernel-based NWFE (KNWFE). The new KNWFE possesses the advantages of both linear and nonlinear transformation, and the experimental results show that KNWFE outperforms NWFE, decision-boundary feature extraction, independent component analysis, kernel-based principal component analysis, and generalized discriminant analysis. © 2006 IEEE.

关键词： Image classification

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Application of Ada Language in a Real-time Database System - A Perspective

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IFAC Proceedings Volumes 2009年第1期42卷 236-241页

作者： Pavel Moryc Jindřich Ĉernohorský Technical University of Ostrava Faculty of Electrical Engineering and Computer Science Department of Measurement and Control Centre for Applied Cybernetics Ostrava Czech Republic

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Architecture, Development and Testing of Home Care Biomedical System

Architecture, Development and Testing of Home Care Biomedica...

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IEEE Conference on Vehicular Technology (VTC)

作者： Ondrej Krejcar Dalibor Janckulik Leona Motalova Centre of Applied Cybernetics Department of Measurement and Control Faculty of Electrical Engineering and Computer Science Technical University of Ostrava Ostrava Czech Republic Department of Measurement and Control Faculty of Electrical Engineering and Computer Science Technical University of Ostrava Ostrava Czech Republic

ISBN: (纸本)9781424425143

The project deal with architecture design, system development and testing of software framework for data management and scheduling of personal sources in home care agencies. Development is started from analyses, over proposal, implementation to resulting testing of application, thereby try cast over whole problems software engineering. System consists of the three main parts PC application, mobile application and database server. All these parts are built on technology Microsoft .NET solutions for desktop and mobile PCs. System works offline, whereas synchronization mobile arrangement with data in database is made only in agency by the help of technology USB, Bluetooth or WiFi. Software layer synchronization administration data is based on technologies ADO .NET and Linq. System will further develop and will base for advancement biomedical science research framework.

关键词： System testing Application software computer architecture Software testing Databases Project management Software development management Proposals Software engineering Personal communication networks

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Methods of Comparing ECG Reconstruction

Methods of Comparing ECG Reconstruction

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International Conference on BioMedical engineering and Informatics (BMEI)

作者： Michal Prauzek Marek Penhaker Faculty of Electrical Engineering and Computer Science Department Measurement and Control VSB-Technical University of Ostrava Ostrava Czech Republic

ISBN: (纸本)9781424441327

The paper describes methods of comparing calculated ECG signal with real signal. Five examination methods of ECG-signal reconstruction from reduced system were proposed in this description. These methods prove reconstruction and evaluate results. They are based on statistic methods, nonparametric approaches and autoregressive models.

关键词： Electrocardiography Heart Sampling methods Electric variables measurement Medical diagnostic imaging Biomedical electrodes MATLAB computer science Statistics Field programmable gate arrays

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