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Development and application of an infrared eye-mouse control system

Journal of Medical and Biological engineering 2006年第1期26卷 15-19页

作者： Lin, Chern-Sheng Chen, Hsien-Tse Lin, Tien-Gern Yeh, Mau-Shiun Tien, Chuen-Lin Department of Automatic Control Engineering Feng Chia University Taichung 407 Taiwan Chung-Shan Institute of Science and Technology Tao-Yuan 325 Taiwan Department of Electrical Engineering Feng-Chia University Taichung 407 Taiwan

In this paper the practical design and development of an eye-mouse model of the improved human-machine interface with infrared rays is presented. In the process of using the remote eye-tracking system, the user need not wear any equipment but rather use a remote infrared light device. The imaging system with an infrared camera can extract images from the eyes to provide the computer with content to analyze, and record information regarding moving traces and pupil diameters. A stabilizing algorithm is added and modified in the tracking method. Then, the user can control the mouse's cursor and operate any kinds of applied program in an eye-mouse control model.

关键词： Eye controlled devices

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Digital Redesign of Sliding Mode control of LTI Systems

Digital Redesign of Sliding Mode Control of LTI Systems

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World Congress on Intelligent control and Automation (WCICA)

作者： Xiangjun Li Changhong Wang Qiyong Wen Xinghuo Yu Bin Wang Department of Control Science and Engineering Harbin Institute of Technology Harbin China School of Electrical and Computer Engineering RMIT University Melbourne Australia

In this paper, a new sliding mode controller design is proposed for sampled-data LTI systems based on the digital redesign methodology. With this controller, chattering is eliminated. LMI (linear matrix inequality) is employed to derive the controller. The simulation results have demonstrated the effectiveness of the proposed algorithm

关键词： Sliding mode control control systems Digital control Matrices Linear matrix inequalities Uncertain systems Microprocessors Frequency Temperature control Circuits

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A Mixed H2/H∞ control Problem with controller Degree Constraint

A Mixed H2/H∞ Control Problem with Controller Degree Constr...

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IEEE Conference on Decision and control

作者： Ningbo Yu Li Qiu Automatic Control Laboratory ETH Zurich Zurich Switzerland Department of Electronic & Computer Engineering Hong Kong University of Science and Technology Hong Kong China

ISBN: (纸本)1424401704;9781424401703

In this paper, we consider a special mixed H 2 /H ∞ optimal control problem which is to obtain the optimal H 2 controller under H ∞ norm and controller degree constraints for an SISO plant. The H ∞ norm constraint on the controller is to achieve a certain level of closed-loop stability robustness against the gap metric, nu-gap metric, or normalized coprime factor uncertainties. The degree constraint requires the degree of the controller to be bounded by that of the plant. We first characterize the set of all feasible stabilizing controllers that meet both the degree and H ∞ norm constraints in terms of a finite dimensional convex set. We then carry out an optimization over the convex parameter set to find the controller that gives the optimal H 2 transient performance. Examples and observations are presented, and comparisons with the results obtained by other H 2 /H ∞ mixed optimization methods are made

关键词： Optimal control Hydrogen Upper bound Robust stability Robust control Feedback Attenuation measurement Riccati equations Centralized control USA Councils

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Assessment of the Performance and Sensitivity to Different Head Model Data of a New Coil Design for Field Localization during TMS

Assessment of the Performance and Sensitivity to Different H...

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IEEE Conference on Electromagnetic Field Computation

作者： Dong-Hun Kim Chulho Won G.E. Georghiou School of Electrical Engineering and Computer Science Kyungpook National University Daegu South Korea Department of Control and Instrumentation Engineering Kyungil University Kyungpuk South Korea Department of Electrical and Computer Engineering University of Cyprus Nicosia Cyprus

In this paper, the field distribution induced inside the brain during transcranial magnetic stimulation (TMS) is thoroughly investigated in terms of two different head models as well as different conductivities of brain components. A new stimulator, adopting a conductive shield plate between a figure-of-eight (FOE) coil and the head, is simulated in the presence of each realistic head model and shows better field localization than the conventional FOE coil

关键词： Magnetic heads Coils Brain modeling Conductivity Predictive models Skull Magnetic stimulation Skin Testing Shape

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Driving Style Classification by Analyzing EEG Responses to Unexpected Obstacle Dodging Tasks

Driving Style Classification by Analyzing EEG Responses to U...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Chin-Teng Lin Sheng-Fu Liang Wen-Hung Chao Li-Wei Ko Chih-Feng Chao Yu-Chieh Chen Teng-Yi Huang Department of Electrical and Control Engineering/Department of Computer Science National Chiao Tung University Hsinchu Taiwan Department of Biological Science and Technology National Chiao Tung University Hsinchu Taiwan Department of Electrical and Control Engineering National Chiao Tung University Hsinchu Taiwan

Driving safely has received increasing attention of the publics due to the growing number of traffic accidents that the driver's driving style is highly correlated to many accidents. The purpose of this study is to investigate the relationship between driver's driving style and driver's ERP response. In our research, a virtual reality (VR) driving environment is developed to provide stimuli to subjects. Independent component analysis (ICA) is used to decompose the electroencephalogram (EEG) data. The power spectrum analysis of ICA components and correlation analysis are employed to investigate the EEG activities related to driving style. Experimental results demonstrate that we may classify the drivers into aggressive or gentle styles based on the observed ERP difference corresponding to the proposed unexpected obstacle dodging tasks.

关键词： Electroencephalography Independent component analysis Road accidents Chaos Virtual reality Enterprise resource planning Vehicle driving Vehicle safety Brain modeling control engineering

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High SNR flexible top hat monopole probe for 1.5 T MRI

High SNR flexible top hat monopole probe for 1.5 T MRI

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作者： Mohammadzadeh, M. Shahabadi, M. Soltanian-Zadeh, H. Tavakoli, A. Rafiei, B. Javidnia, D. Oghabian, M.A. Department of Physics Amir-Kabir University of Technology Tehran Iran School of Electrical and Computer Engineering University of Tehran Tehran Iran Control and Intelligent Processing Center of Excellence School of Electrical and Computer Engineering University of Tehran Tehran Iran Image Analysis Laboratory Department of Radiology Henry Ford Health System Detroit MI United States Department of Electrical Engineering Amir-Kabir University of Technology Tehran Iran Medical Imaging Center Imam Khomeyni Hospital Tehran Iran Research Center for Science and Technology in Medicine Tehran University of Medical Sciences Tehran Iran

In this paper, design principles and application of a thin and flexible intravascular top hat monopole probe with increased signal-to-noise ratio (SNR) and improved longitudinal and radial coverage are described and compared with the conventional monopole probe. The top hat probe is constructed by removing a segment of the shield of a coaxial cable. A flexible thin copper foil in contact with the inner conductor of the cable is added to the end section of the cable. The copper foil acts as an antenna top hat load increasing the uniformity of the current distribution on the probe and establishes a uniform region of SNR distribution around the probe. Improvement of the SNR distribution of the top hat probe relative to the conventional monopole probe is evaluated using quantitative indices. Experimental results show that for the top hat probe, the ratio of the maximum image SNR to its relative standard deviation (SR) is 2.73 times higher than that of a conventional probe. © 2006 IOP Publishing Ltd.

关键词： Medical imaging

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INTERVAL ASYMPTOTIC ESTIMATOR FOR CHLORINE MONITORING IN DRINKING WATER DISTRIBUTION SYSTEMS

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IFAC Proceedings Volumes 2006年第14期39卷 35-40页

作者： R. Łangowski M.A. Brdys Department of Automatic Control Gdansk University of Technology ul G. Narutowicza 11/12 80-952 Gdansk Poland School of Engineering Department of Electrical Electronic and Computer Engineering The University of Birmingham Birmingham B15 2TT UK

Asymptotic and interval observer for quality monitoring in drinking water distribution systems is derived in this paper. It produces robust interval bounds on the estimated state variables of the water quality. Solving two differential equations generates the bounds; hence the numerical efficiency is sufficient for on-line monitoring of the water quality. The observer is applied to example water network and tight bounds-estimates are obtained.

关键词： estimators bounding method dynamic modelling water quality

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CONDITION MONITORING USING PCA BASED METHOD AND APPLICATION TO WASTEWATER TREATMENT PLANT OPERATION

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IFAC Proceedings Volumes 2006年第14期39卷 208-213页

作者： K. Mazur A. Borowa M.A. Brdyś Department of Automatic Control Gdansk University of Technology ul. Narutowicza 11/12 80-952 Gdansk Poland Department of Electronic Electrical and Computer Engineering The University of Birmingham Birmingham B15 2TT UK

Monitoring of multidimensional, sophisticated processes still can be a challenge. The paper presents tools to handle such cases, which are based on the Principal Component Analysis with the adaptive enhancement. A novel PCA algorithm is derived with the adaptive supervisor. It is applied to monitoring operation of wastewater treatment plant and tested by simulation based on real data records.

关键词： Monitoring detection algorithms statistical process control frequency signal analysis multidimensional systems wastewater treatment

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Simulation and analysis of electromagnetic environment for the mobile receiver

Simulation and analysis of electromagnetic environment for t...

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International Zurich Symposium on Electromagnetic Compatibility (EMC Zurich)

作者： Jung-Hoon Kim Joong-Geun Rhee Department of Electronic Electrical Control and Instrumentation Engineering Hanyang University Ansan South Korea School of Electrical Engineering and Computer Science Hanyang University Ansan South Korea

This paper presents a hardware and a soft ware study results which can perform measurement, analysis, and simulation of EM (electromagnetic) environment that affects on mobile radio receivers. EM environment data with GPS (Global Positioning System) information were collected, and EM environment was simulated based on these. A simulation program which can be an evaluating tool for the analysis of receiver performance was developed

关键词： Analytical models Electromagnetic analysis Electromagnetic measurements Antenna measurements Vehicles Global Positioning System Computational modeling Performance analysis Frequency measurement Time measurement

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Output feedback/feedforward control of discrete linear repetitive processes for performance and disturbance rejection

Output feedback/feedforward control of discrete linear repet...

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American control Conference (ACC)

作者： B. Sulikowski K. Galkowski E. Rogers D.H. Owens A. Kummert Institute of Control and Computation Engineering University of Zielona Gora Zielona Gora Poland School of Electronics and Computer Science University of Southampton Southampton UK Department of Automatic Control and Systems Engineering University of Sheffield Sheffield UK Faculty of Electrical Information and Media Engineering University of Wuppertal Wuppertal Germany

Repetitive processes propagate information in two independent directions and are of both systems theoretic and applications interest. They cannot be controlled by direct extension of existing techniques from either standard (termed ID here) or 2D systems theory. Here we give new results on the design of physically based feedforward/feedback control laws to achieve desired performance and disturbance decoupling in the sense defined in the body of the paper. The new results are for the case when only output (as opposed to state) information is used to activate the control law

关键词： Output feedback Linear feedback control systems control systems Optimal control Process control Linear systems Stability Feedback control Algorithm design and analysis Iterative algorithms

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