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International Symposium on Parallel Architectures, Algorithms and Networks (ISPAN)

作者： Yuan-Jen Chang Chin-Hsing Chen Wen-Tzeng Huang You-Yin Chen Chih-Yuan Kuo Department of Management Information Systems Central Taiwan University of Science and Technology Taichung Taiwan Department of Computer Science and Information Engineering Minghsin University of Science and Technology Hsinchu Taiwan Department of Electrical and Control Engineering National Chiao Tung University Hsinchu Taiwan Institute of Biomedical Engineering and Material Science Central Taiwan University of Science and Technology Taichung Taiwan

This study revealed an applicable architecture in which a data-driven mechanism was designed to bridge a wireless sensor network (WSN) and the Internet. The system was divided into two independent parts. The first part is the data communication between the sensor network and the database. The other part is the data communication between the database and the user interface (UI). These two parts are connected by the database server. Asynchronous interoperation was introduced while exchanging data between these two parts. Users were not allowed to control the sensors through direct connection to the sensors and can only use the Web service to update the sensor profile built in the database. The sensors were triggered to start the action through a data-update event from the database. A sensor profile built in the database collected all sensor information and all user control command. For the information to be centralized and triggered by the database, regardless of whether sensors were measured in a periodic sampling or an event-driven environment, all sensor actions were triggered through a data-update event in the database. For the sake of improving user experience, a Web-based UI was implemented using scalable vector graphics (SVG) and Ajax technologies. All operations by users were conducted through the Hypertext Transfer Protocol (HTTP) standard method. Therefore, this system can be used via a browser and easily deployed. The proposed architecture is suitable for a healthcare system, a personal body area network, and the Infranet for control.

关键词： Wireless sensor networks IP networks Databases Communication system control Data communication Bridges User interfaces Network servers Web server Web services

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Small-signal analysis and simulation of fuzzy controlled buck converter

Small-signal analysis and simulation of fuzzy controlled buc...

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IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Lezhu Chen Yanxia Xu Yan-Fei Liu Rencai Jin Key Lab of Power Electronics & Motion Control Anhui University of Science and Technology China Department of Electrical Engineering Tsinghua University China Department of Electrical and Computer Engineering Queen's University Canada China Mcc17 Construction Company Limited Anhui China

ISBN: (纸本)9781424427994

In this paper, a fuzzy control method is introduced for Buck converter and a Proportional-Differential (PD) like fuzzy controller is designed. The nonlinear characteristics of the PD like fuzzy controller in small-signal range are analyzed. The analysis shows that the PD like fuzzy controller is equivalent to a modified PD controller which provides an additional correction action. The PD like fuzzy controller can provide faster correction than the conventional PD controller. Therefore, the dynamic performance of the closed loop system could be improved. The simulation under fuzzy control is compared with the simulation under Voltage Mode control, using Matlab/Simulink. The simulation results demonstrate that fuzzy control has superior performance as compared with Voltage Mode control.

关键词： Analytical models Fuzzy control Buck converters PD control Voltage control Error correction DC-DC power converters automatic control Computational modeling control systems

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Optimization of maintenance for power system equipment using a predictive health model

Optimization of maintenance for power system equipment using...

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Power Tech Conference

作者： G. Bajracharya T. Koltunowicz R. R. Negenborn Z. Papp D. Djairam B. De Schutter J. J. Smit Faculty of Electrical Engineering Mathematics and Computer Science Department High-voltage Components and Power Systems Delft University of Technnology Delft Netherlands Delft Center of Systems and Control Delft University of Technnology Delft Netherlands TNO Science and Industry Delft Netherlands Faculty of Electrical Engineering Mathematics and Computer Science Department High-voltage Components and Power Systems Transport Technology Department Delft University of Technnology Delft Netherlands

In this paper, a model-predictive control based framework is proposed for modeling and optimization of the health state of power system equipment. In the framework, a predictive health model is proposed that predicts the health state of the equipment based on its usage and maintenance actions. Based on the health state, the failure rate of the equipment can be estimated. We propose to use this predictive health model to predict the effects of different maintenance actions. The effects of maintenance actions over a future time window are evaluated by a cost function. The maintenance actions are optimized using this cost function. The proposed framework is applied in the optimization of the loading of transformers based on the thermal degradation of the paper insulation.

关键词： Power system modeling Predictive models Aging Cost function Marine technology Power transformer insulation Predictive maintenance Power system management Investments Power system reliability

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Wavelet and Hilbert transform-based Brain computer Interface

Wavelet and Hilbert transform-based Brain Computer Interface

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International Conference on Advances in Computational Tools for engineering Applications, ACTEA

作者： A. Asadi Ghanbari M. R. Nazari Kousarrizi M. Teshnehlab M. Aliyari Computer Department Science and Research Islamic Azad University Tehran Iran Biomedical Engineering Group Electrical Engineering Department K.N. Toosi University of Technology Tehran Iran Control Group Electrical Engineering Department K.N. Toosi University of Technology Tehran Iran Mechatronics Group Electrical Engineering Department K.N. Toosi University of Technology Tehran Iran

Brain computer Interface (BCI) is a technology that developed over the last three decades has provided a novel and promising alternative method for interacting with the environment. BCI is a system which translates a subject's intentions into a control signal for a device, e.g., a computer application, a wheelchair or a neuroprosthesis. Electroencephalogram-based BCI has become a hot spot in the research of neural engineering, rehabilitation, and brain science. The artifacts are disturbance that can occur during the signal acquisition and that can alter the analysis of the signals themselves. Removing artifacts produced in Electroencephalogram (EEG) data by muscle activity, eye blinks and electrical noise is a common and important problem in EEG analysis. In this research, for artifact rejection, EEG data are filtered to the frequency range between 8 and 32 Hz with a butterworth band-pass filter. Finally two different structures of neural network and a support vector machine used to classify features that are extracted by Hilbert and Wavelet transform.

关键词： Brain computer interfaces Electroencephalography Band pass filters control systems computer applications Wheelchairs Neural engineering Signal analysis Muscles Frequency

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Implementation of a foldable 3 DOF master device to handle a large glass plate

Implementation of a foldable 3 DOF master device to handle a...

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2009 IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Jaeheon Chung Jong Tae Seo Byung-Ju Yi Whee Kuk Kim Sang Heon Lee School of Electrical Engineering and Computer Science Hanyang University Ansan South Korea Department of Control and Instrumentation Engineering Korea University South Korea Institute of Construction Technology Samsung C and T Corporation South Korea

This paper proposes a new spatial 3-DOF parallel mechanism with a unique forward kinematic solution. Using the Scott mechanism as its sub-chain, the mechanism is foldable, which is useful for design of a compact-sized master device. The kinematics of this mechanism is derived and its kinematic characteristics are analyzed in terms of workspace and kinematic isotropy. The mechanism was implemented and tested as a master device to control a virtual construction robot handling a large glass plate.

关键词： Glass Kinematics Robotics and automation Industrial training computer science Productivity Intelligent robots USA Councils Testing Leg

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Hybrid robust observers for locally Lipschitz systems 10

Hybrid robust observers for locally Lipschitz systems

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2009 10th European control Conference, ECC 2009

作者： Bobtsov, Alexey A. Efimov, Denis V. Department of Control Systems and Informatics Saint-Petersburg State University of Information Technologies Mechanics and Optics Kronverksky av. 49 St-Petersburg197101 Russia CCS Lab. Institute for Problems of Mechanical Engineering Bolshoi av. 61 V.O. St. Petersburg199178 Russia Systems and Modeling Department of Electrical Engineering and Computer Science Unviersité de Liège Liege Sart-TilmanB-4000 Belgium

State observer design procedure is proposed for nonlinear locally Lipschitz systems. Possible presence of disturbances is taken into account. The solution is based on logic-based control approach applicable to nonline... 详细信息

ISBN: (纸本)9783952417393

关键词： Nonlinear systems

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Intelligent-adaptive flight control with a physiologically motivated algorithm

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International Journal of Modelling and Simulation 2009年第1期29卷 12-18页

作者： Mehrabian, A.R. Lucas, C. School of Mechanical Engineering Department of Engineering University of Tehran P.O. Box: 14875 - 347 Tehran Iran Center of Excellence for Control and Intelligent Processing School of Electrical and Computer Engineering Department of Engineering P.O. Box: 14395 - 515 Tehran Iran School of Cognitive Science IPM Tehran Iran

This paper presents a now intelligent approach for adaptive control of non-linear dynamic systems. Based on past researches on emotionally intelligent-control systems, the introduced method is a modified version of Brain Emotional Learning Based Intelligent controller (BELBIC), a physiologically motivated system previously developed and successfully used in control applications. The proposed approach is able to quickly respond to change in environmental and dynamic system and realizes online diroct-adaptivc-control scheme. Showing very good robustness, BELBIC is very simple in implementation and imposes very low computation load on the control system. This modified algorithm has boon successfully applied to real-time longitudinal control of an agile air-to-air missile which has over-changing non-linear dynamics.

关键词： Intelligent systems

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Coverage tracking of a moving target by a group of mobile agents

Coverage tracking of a moving target by a group of mobile ag...

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Asian control Conference

作者： Xiaoli Wang Yiguang Hong Zhong-Ping Jiang Key Laboratory of Systems and Control Institute of Systems Science Chinese Academy and Sciences Beijing China Department of Electrical and Computer Engineering Polytechnic Institute of New York University Brooklyn NY USA

In this paper, we consider finite-time tracking problems of a moving target by multiple mobile agents. The mobile agents with global sensing areas and limited actuation region are designed to track down a target with estimation error with the help of formation and coverage. In order to capture the target, its location and velocity are first estimated. With observer-based estimation and formation control, the group of agents can catch the target by a coverage tracking policy in finite time.

关键词： Target tracking Mobile agents Robot sensing systems Robot kinematics State estimation Estimation error control systems Power system reliability Power system modeling Collaboration

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WinPLC control from MATLAB/Simulink Environment throw the Multiplatform control System REX by Secured Wireless Network

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IFAC Proceedings Volumes 2009年第1期42卷 13-16页

作者： Ondrej Krejcar Petr Konarik Tutsch Michal VSB-Technical University of Ostrava Faculty of Electrical Engineering and Computer Science Department of Measurement and Control Centre for Applied Cybernetics 17. listopadu 15 708 33 Ostrava- Poruba VSB-Technical University of Ostrava Faculty of Mechanical Engineering Department of Control System and Instrumentation 17. listopadu 15 708 33 Ostrava- Poruba

Paper deals with industrial realization of feedback control of demanding applications on their control, control algorithms and visualization together with design, implementation and real time control from MATLAB/Simulink Environment. Paper shows direct connection and implementation way of designed control schemas of prepared applications to an industrial WinPLC. Described is a way to produce a permanent solution in control applications that are fully prepared, designed and implemented directly from MATLAB/Simulink to the target control platform. As a part, the mentioned solution is using a multiplatform control system REX as a bridge between MATLAB and target platforms. These methods allow minimizing costs of development of control of applications, because it produces target permanent realizations in comparison to classical development methods that usually need expensive real time measurement cards and produce only one purpose development solution.

关键词： WinPLC Matlab Simulink control System REX control Real Time

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Quantized Feedback Stabilization of Hybrid Impulsive control Systems

Quantized Feedback Stabilization of Hybrid Impulsive Control...

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Joint 48th IEEE Conference on Decision and control and 28th Chinese control Conference

作者： Zhichun Yang Yiguang Hong Zhong-Ping Jiang Xiaoli Wang Chongqing Key Lab of Operations Research and System Engineering Department of Mathematics and Computer ScienceChongqing Normal University Institute of Systems Science Chinese Academy of Sciences Key Laboratory of Systems and Control Institute of Systems ScienceChinese Academy of Sciences Dept.of Electrical & Computer Engineering Polytechnic Institute of New York University

In this paper,we consider the feedback stabilization problem of impulsive linear control systems with quantized input signals and quantized output *** concepts including quasi-invariant sets and attracting sets for hybrid impulsive quantized systems are *** on these concepts and the analysis of related dynamic properties,we propose hybrid quantized control schemes to stabilize the considered impulsive systems via state and output feedback.

关键词： quantization impulsive systems hybrid control stabilization

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