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作者： Krejcar, Ondrej Frischer, Robert Dept. of Measurement and Control Center for Applied Cybernetics Faculty of Electrical Engineering and Computer Science Ostrava Poruba Czech Republic Dept. of Automation and Computing in Metallurgy VSB Technical University of Ostrava Ostrava Poruba Czech Republic

ISBN: (纸本)9788070438657

This paper deals with a possibility of non-destructive diagnostics of solid objects by software analysis of vibration spectrum by accelerometers. By a use of MATLAB platform, a processing and information evaluation from accelerometer is possible. Accelerometer is placed on the measured object. The analog signal needs to be digitized by a special I/O device to be processed offline with FFT (Fast Fourier Transformation). The power spectrum is then examined by developed evaluating procedures.

关键词： Accelerometers

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Producer-Consumer Distributed Energy Production Systems modeling with a new Approach of Recurrent Synchronized Fuzzy Petri Nets

Producer-Consumer Distributed Energy Production Systems mode...

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The 8th World Congress on Intelligent Control and automation(第八届智能控制与自动化世界大会 WCICA 2010)

作者： Eugenia Minca Otilia Elena Dragomir Florin Dragomir Department of Automation Computer Science and Electrical Engineering Valahia University of Targoviste Electrical Engineering Faculty Targoviste 18 Unirii Av. Romania

The present paper proposes a tool based on fuzzy Petry Nets for modeling the recurrent of the decision functions. The analysed system-a producer-consumer distributed energy production systems is structured on hierarchical levels and is synchronized in relation with successive external requests. Thus, each hierarchical level is capable to repeatedly carry out a fixed decision scheme and executes this action in temporal windows which are progressively increased. Between hierarchical levels there is an information subsystem based and LIFO and OOPN (Object Oriented Petri Nets). The proposed structure includes also a recurrent aspect in the decision function's capability to be rerun on a hierarchical level by preserving information from the previous level. The present paper enhances similar approaches of the authors, carried out through the recurrent modeling of the monitoring function.

关键词： Adaptation model Monitoring Object oriented modeling Synchronization Petri nets Renewable energy resources Firing

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Wireless Sensor Networks in Life science applications

Wireless Sensor Networks in Life Science applications

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Conference on Human System Interactions, HSI

作者： Philipp Gorski Frank Golatowski Ralf Behnke Christian Fabian Kerstin Thurow Dirk Timmermann Institute of Applied Microelectronics and Computer Engineering Germany Faculty of CS and EE University of Rostock Germany Faculty of CS and EE Institute of Applied Microelectronics and Computer Engineering Germany CELISCA Center for Life Science Automation

ISBN: (纸本)9781424475605;9781424475629

Over the last years Wireless Sensor Networks (WSN) have been becoming increasingly applicable for real world scenarios and now production ready solutions are available. In the same period the upcoming combination of Service-oriented Architectures and Web Service technology demonstrated a way to realize open standardized, flexible, service component based, loosely coupled and interoperable cross domain Enterprise Software solutions. But those solutions have been too resource-intensive and complex to be applicable for limited devices like wireless sensor nodes or small-sized embedded systems. Thus, more and more research investigations have been launched to bring the aspect of cross domain interoperability to the field of embedded battery powered devices. Now it is time to show the potential of integrating Web Services enabled WSN solutions in Enterprise systems. The proposed laboratory assistance solution in this paper demonstrates the benefits of Web Service enabled WSNs for process monitoring and disaster management by extending an existing system in the Life science automation domain.

关键词： Wireless sensor networks Web services Production Service oriented architecture Sensor systems Embedded system Batteries Laboratories computerized monitoring automation

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Investigation of the spatial spectrum of cortical contours on cross-sections of the brain

Investigation of the spatial spectrum of cortical contours o...

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10th International Conference on Information Technology and Applications in Biomedicine: Emerging Technologies for Patient Specific Healthcare, ITAB 2010

作者： Graichen, Uwe Eichardt, Roland Güllmar, Daniel Haueisen, Jens Ilmenau University of Technology Faculty of Computer Science and Automation Institute of Biomedical Engineering and Informatics P.O. Box 100565 98684 Ilmenau Germany Jena University Hospital Department of Diagnostic and Interventional Radiology Medical Physics Group Philosophenweg 3 07743 Jena Germany

ISBN: (纸本)9781424465606

The human brain possesses a highly structured surface. A quantitative examination of the cortical surface is of particular interest for many questions, e.g. the investigation the relation between the spatial frequencies of cortical surfaces and spatial frequencies within Electroencephalogram and the analysis of changes of the structure of the human brain caused by diseases. In this paper a Fourier analysis approach to investigate the spatial spectrum of contour data of the cortical surface is introduced. The method was validated using artificial data with known spatial spectrum and employed to investigate the spatial frequencies of the cortical surface of a human subject. © 2010 IEEE.

关键词： Fourier analysis

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A combined mixed integer programming and fuzzy control approach for movement of autonomous systems in formation

A combined mixed integer programming and fuzzy control appro...

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IEEE Conference on Control Technology and Applications (CCTA)

作者： Thomas Kopfstedt Christoph Ament Research and Development Department Diehl BGT Defence GmbH and Company KG Uberlingen Germany Institute for Automation and Systems Engineering Faculty of Computer Science and Automation Technical University Ilmenau Ilmenau Germany

This paper presents a new combination of algorithms to allow coordinated movement of groups of autonomous systems in formation. A key feature of the work we will present here is a number of specific sets of fuzzy algorithms that, in combination, allow a movement in formation in 3D environments simply based on sensor inputs in a purely reactive manner. This approach is combined with a global optimization realized by using mixed integer programming to allow well planned actions of the formations with automatic avoidance of situations in which the stability of the formation could not be assured. For the combination of these two different algorithms and the possibility to extend these two with other algorithms to fulfill complicated mission tasks we we present a specific control architecture that allows to run several algorithms in parallel during a mission and to select the best performing one as the one that is controlling the autonomous vehicle.

关键词： Collision avoidance Fuzzy systems Unmanned aerial vehicles Three dimensional displays Optimization Robot sensing systems Trajectory

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Energy efficient trajectory generation for a state-space based JPL Aerobot

Energy efficient trajectory generation for a state-space bas...

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2010 IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Weizhong Zhang Tamer Inanc Alberto Elfes Department of Automation University of Electronic Science and Technology Chengdu China Electrical and Computer Engineering University of Louisville KY USA Faculty of Electrical and Computer Engineering University of Louisville KY USA NASA Jet Propulsion Laboratory CA USA

The 40th anniversary of Apollo 11 project with man landing on the moon reminds the world again by what science and engineering can do if the man is determined to do. However, a huge step can only be achieved step by step which may be relatively small at the beginning. Robotic exploration can provide necessary information needed to do the further step safely, with less cost, more conveniently. Trajectory generation for a robotic vehicle is an essential part of the total mission planning. To save energy by exploiting possible resources such as wind will assist a robotic explorer extend its life span and perform tasks more reliably. In this paper, we propose to utilize Nonlinear Trajectory Generation (NTG) methodology to generate energy efficient trajectores for the JPL Aerobot by exploiting wind. The Aerobot model is decoupled into longitudinal and lateral dynamics with control inputs as elevator deflection δ e , thrust demand δ T , vectoring angle δ v for the longitudinal motion, aileron deflection δ a , rudder deflection δ r for the lateral motion. The outputs are the velocities and orientation of the Aerobot. The Aerobot state space model parameters are obtained from experimental identification on AURORA Airship since the actual JPL Aerobot is similar to the AURORA Airship. In this paper, the results show that with the state-space model, the proposed trajectory generation method can guide the Aerobot to take advantage of previously known wind profile to generate an energy-efficient trajectory.

关键词： Trajectory Robots Atmospheric modeling Elevators Three dimensional displays Planets Mathematical model

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Design and Realization of Low Cost Discrete PSD Controller for Power Electronics Applications

Design and Realization of Low Cost Discrete PSD Controller f...

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International Conference on computer engineering and Applications (ICCEA)

作者： Ondrej Krejcar Michal Tutsch Robert Frischer Ivo Spicka Department of Measurement and Control Faculty of Electrical Engineering and Computer Science VSB-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)9781424460793;9780769539829

Most systems are controlling by common PID controllers. These PID controllers are available in variety possibilities. They are divided by types of controlling systems, by speed of action interference, by complexity, by robustness etc. Most of industrial controllers are very expensive and except of some basic setting they are not offering any other way, how to involve into controlling process. On the other side, developing new analog controller to control simple systems is not reasonable in financial or time issue. That's why we decided to build simple, discrete controller and implement its algorithm into single chip eight bit microcontroller (MCU). This discrete controller - PSD - is characteristic its simplicity and variability. It can control plenty of less complicated systems by a mere change of its characteristic parameters. Thanks to modern approach is possible to create a full-featured controller including power action element on an area equal to 7cm 2 .

关键词： Costs Power electronics Control systems Three-term control Interference Robust control Electrical equipment industry Industrial control Process control Microcontrollers

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Continuous Noninvasive Blood Pressure Measurement by Near Infra Red CCD Camera and Pulse Transmit Time Systems

Continuous Noninvasive Blood Pressure Measurement by Near In...

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International Conference on computer engineering and Applications (ICCEA)

作者： Petr Zurek Ondrej Krejcar Marek Penhaker Martin Cerny Robert Frischer Department of Measurement and Control Faculty of Electrical Engineering and Computer Science VSB-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)9781424460793;9780769539829

The need of continuous blood pressure measurement is usable in wide spectrum of applications from physicians practice to home care applications. Many types of blood pressure measurement devices can be bought in electronics shops. All such devices are contact measurement devices which need to be in contact of human body (hand or foot mainly). Secondary they allow only one measurement per several minutes interval (typically ones in 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 measure a blood pressure during a long time period and send this information remotely to operator's stations. We would like to try two systems of blood pressure monitoring. The first one is system with NIR CCD camera (Near Infra Red), which measure the wide changes of the blood vessels and the second one is system, which measure the pulse transmit time (PTT). At the end we can compare the systems and get information, which system will be a right way to obtain exact continuous blood pressure information.

关键词： Pulse measurements Blood pressure Pressure measurement Time measurement Charge coupled devices Charge-coupled image sensors Biomedical monitoring Battery charge measurement Humans Foot

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Influence of contact resistance on shielding efficiency of shielding gutters for HV cables

Influence of contact resistance on shielding efficiency of s...

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14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC2010

作者： Koroglu, S. Sergeant, P. Sabariego, R. Dang, Vuong Q. De Wulf, M. Dept. Electrical Engineering Yildiz Technical University 34349 Besiktas-Istanbul Turkey Dept. Electrical Energy Systems and Automation Ghent University B-9000 Ghent Belgium Dept. Electrotechnology Faculty Applied Engineering Sciences University College Ghent B-9000 Belgium Dept. Electrical Engineering and Computer Science ACE B-4000 Liege Belgium ArcelorMittal Global R and D Gent B-9060 Zelzate Belgium

ISBN: (纸本)9781424470594

Shielding of buried three phase high voltage cables can be done by placing the cables in conducting ferromagnetic U-shaped gutters covered by plates. In case of a perfect electrical contact between adjacent gutters and between adjacent cover plates, the induced currents in the shield efficiently reduce the field generated in the vicinity of the cables. However, as a perfect contact cannot be guaranteed, it is useful to quantify the effect of a bad electrical contact on the shielding performance. From 2D FEM, 3D FEM and experiments, it is observed that a bad contact does not influence significantly the shielding if the axial length of the plates is relatively long compared to their other dimensions. © 2010 IEEE.

关键词： Shielding

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Multi-agent system for customer relationship management with SVMs tool

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International Journal of Intelligent Information and Database Systems 2010年第2期4卷 121-136页

作者： Xiao, Yanshan Liu, Bo Luo, Dan Cao, Longbing Deng, Feiqi Hao, Zhifeng Faculty of Information Technology University of Technology Sydney PO Box 123 Broadway NSW 2007 Australia College of Automation Science and Engineering South China University of Technology Guangzhou 510640 China College of Computer Science GuangDong University of Technology Guangzhou China

In this paper, we introduce multiple agents, knowledge discovery and data mining into customer relationship management (CRM) to set up the architecture of a multi-agent-based CRM system (MAB-CRM), and then use the SVMs-based approach to build up the decision support model which can classify the patterns obtained by the multiple agents into several decision levels, so that managers can pursue different decision-making activities according to the decision level of a pattern. Substantial experiments in the two-dimensional space show how the SVMs-based approach works. The practical problem from one Chinese company has been resolved by the SVMs-based approach. The results illustrate that this approach has an effective ability to learn the decision rules from the assessors' experience. Copyright © 2010 Inderscience Enterprises Ltd.

关键词： Support vector machines

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