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Determination of trajectories using non-invasive bci techniques in 3d environments

Determination of trajectories using non-invasive bci techniq...

16th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines, CLAWAR 2013

作者： García-Egea, Teodoro Díaz-Hernández, Carlos Alberto López-Coronado, Juan Contreras-Vidal, José L. Department of Automation and Systems Engineering Campus Muralla del Mar Polytechnical University of Cartagena Cartagena Spain Department of Polytechnic Sciences Polytechnic Faculty UCAM Catholic University San-Anthony of Murcia Spain Fischell Department of Bioengineering University of Maryland College Park MD United States Department of Kinesiology University of Maryland College Park MD United States Department of Electrical and Computer Engineering Laboratory for Non-invasive Brain-Machine Interface Systems University of Houston Houston TX 77204 United States

ISBN: (纸本)9789814525527

The feasibility of continuous decoding of self-initiated, self-selected hand movements to three-dimensional (3D) spatial targets from scalp electroencephalography (EEG) using linear decoders has been recently demonstrated. In this paper, we show that it is possible to train linear classifiers to decode hand movement direction to eight 3D spatial targets, in both planning and movement windows, using only the fluctuations in the amplitude of smoothed low-frequency signals from high-density scalp EEG. Taken together these results support the design of brain-computer interfaces (BCI) based on non-invasive scalp EEG signals and suggest that the current perception of the limits of EEG as a source signal for BCI applications merits further examination. Copyright © 2013 by World Scientific Publishing Co. Pte. Ltd.

关键词： Electroencephalography

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Cascade PID control of some processes with distributed parameters through the (M pdx ) method with approximating solutions

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IFAC Proceedings Volumes 2013年第6期46卷 19-25页

作者： T. Coloşi M. Abrudean M.L. Ungureşan V. Mureşan Department of Automation Technical University of Cluj-Napoca Faculty of Automation and Computer Science 26-28 Gh. Baritiu Street 400027 Cluj-Napoca Romania Phone: +40-264-401240 +40-744-420906 Fax: +40-264-599893 Department of Physics and Chemistry Technical University of Cluj-Napoca Faculty of Materials Science and Engineering 103-105 Muncii Street 400641 Cluj-Napoca Romania Phone: +40-264-401627 Fax: +40-264-415054

Continuing the paper (2013) the analogical modeling and the numerical simulation of a cascade PID control diagram from Fig. 1 is presented, containing two distributed parameters processes, each one modeled through an equation with partial derivatives of second order with two independent variables. Through the numerical integration, the method of the Matrix of Partial Derivatives of the State Vector (M pdx ) is used too, associated with approximating solutions. The unitary and systemized character of this method is highlighted, considered known from the previous papers. (2009, 2011, 2013). Like in the case of paper [1], a program of numerical simulation for the entire PID cascade control scheme was elaborated, resulting a more complete phenomenological interpretation of the obtained results and performances.

关键词： equations with partial derivatives ordinary differential equations state vector initial conditions approximating solutions Taylor series cascade PID control scheme

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Image Spectrum Decomposition and Narrow-Band Noise Removal Based on 2D Separable Nonuniform Filter Banks

Image Spectrum Decomposition and Narrow-Band Noise Removal B...

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IEEE International Conference on Signal Processing, Communications and Computing

作者： Wei Zhong Qin Zhang Long Ye Lili Liang Lihong Dong Key Lab of Media Audio & Video of Ministry of Education Communication University of China Beijing 100024 China Faculty of Automation and Information Engineering Xi'an University of Technology Xi'an 710048 China Department of Computer and Information Engineering Jiangxi Agricultural University Nanchang 330045 China

ISBN: (纸本)9781479910267

In this paper, a simple but effective method is proposed for image spectrum decomposition and denoising, due to the fact that the image cannot be decomposed flexibly in a transform domain. According to its spectrum distribution, the image decomposition is carried out by merging the corresponding filters of a uniform cosine-modulated filter bank, resulting 2D separable nonuniform filter banks. This method performs efficiently when the power spectrum of the image is distributed concentratedly. Moreover, if the image is corrupted by a narrow-band noise in the region where its power spectrum is low, the noise can be easily detected and removed by using the proposed idea of spectrum decomposition. A simulation of image Barbara is given to demonstrate that the proposed method is capable of achieving good performance in decomposing the power spectrum and removing the narrow-band noise involved.

关键词： Image spectrum decomposition narrow-band noise removal spectrum distribution nonuniform filter banks spectrum distribution Filter banks narrowband noise power spectra Imagery (Psychotherapy) images Image decomposition Image decomposition Separable Nonuniform

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Intelligent Haptic Robotic Glove for patients diagnosed with cerebrovascular accidents

Intelligent Haptic Robotic Glove for patients diagnosed with...

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International Conference on System Theory, Control, and Computing (ICSTCC)

作者： Nirvana Popescu Dorin Popescu Marian Poboroniuc Cristian Dinu Popescu Computer Science Department University Politehnica of Bucharest Bucharest Romania Faculty of Automation Computers and Electronics University of Craiova Craiova Romania Faculty of Electrical Engineering GH. ASACHI Technical University of Iasi Iaşi Romania Rehabilitation Clinic Hospital of Iasi Iaşi Romania

This paper is based on a research project regarding the design and development of an Intelligent Haptic Robot-Glove (IHRG) for the rehabilitation of the patients that have a diagnosis of a cerebrovascular accident. The IHRG is an exoskeleton that supports the human hand and hand activities by using a control architecture for dexterous grasping and manipulation. This IHRG is a medical device that acts in parallel to a hand in order to compensate some lost function. A novel approach for the development of an exoskeleton assistive hand is considered, a “mechatronic approach” for the integration of the mechanical structure, the sensory, the actuation system and the virtual and control system.

关键词： Robots Thumb Exoskeletons computer architecture Sensors Medical treatment

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Design and analysis of negative value circuit components in Pspice simulation software

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computer Modelling and New Technologies 2013年第2期17卷 53-59页

作者： Ferikoǧlu, A. Sari, Ya. Köker, R. Sakarya University Technology Faculty Electrical and Electronics Engineering Department 54187 Sakarya Turkey Sakarya University Hendek Vocational High School Electronics and Automation Department Hendek Sakarya Turkey Sakarya University Technical Education Faculty Electronics and Computer Sciences Department 54187 Sakarya Turkey

This paper describes the transaction to generate and measure negative valued resistors, capacitors and inductors in Pspice simulation medium for an educational purpose. Negative circuit components are designed and their defining characteristics are produced. An op-amp based generic circuit is used for obtaining negative components. To extract characteristics, a charge-meter and a flux-meter are designed and utilized, in addition to the conventional meters (markers) in the Pspice environment. The numerical examples verify the relevant background theory and validate the designed meters, namely flux meter and charge meter, in simulation medium. The study of the paper have educational value in making clear the meaning of negative impedance by experimentation in a simulation medium, thus relating theory to practice and also exhibit that ORCAD Pspice is highly visual and effective for both understanding the mathematical theory underlying the circuits and performing measurements of flux and charge which are needed to obtain the characteristics of negative inductors and negative capacitors.

关键词： Operational amplifiers

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Performance results of qualitative optical flow processing integrated in fuzzy logic-based behavioral mobile robot control

Performance results of qualitative optical flow processing i...

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10th IFAC Symposium on Robot Control, SYROCO 2012

作者： Mai, Ngoc Anh Janschek, Klaus Institute of Automation Faculty of Electrical and Computer Engineering Technische Universität Dresden Germany

ISBN: (纸本)9783902823113

This paper reports performance results of qualitative optical flow processing integrated in a fuzzy logic-based behavioral mobile robot control system. The quality and noise robustness of qualitative optical flow processing is improved by a novel optical flow outlier detection filter. This filter performs a qualitative detection of outliers based on comparison between an optical flow vector and the average value of an optical flow pattern related to the considered vector. The performance of qualitative optical flow processing is tested and demonstrated successfully through experiments in a real office environment. © 2012 IFAC.

关键词： Fuzzy logic

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Personalized therapy selection by using multi-objective optimization

Personalized therapy selection by using multi-objective opti...

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IEEE 16th International Conference on Intelligent engineering Systems, INES 2012

作者： Karpics, Ivars Institute of Computer Control Automation and Computer Engineering Faculty of Computer Science and Information Technology Riga Technical University Riga Latvia

ISBN: (纸本)9781467326957

In the article a therapy selection method by using topological modelling and multi- objective optimization is presented. In a medicine practice a doctor by taking into the count patients' health state and laboratory results, tries to suggest a treatment strategy, which mostly is a drug therapy. To solve this task a decision support system has been developed and proposed. The system includes a mathematical model of three self connected diseases. Therapies are evaluated by five efficiency objectives. To find the optimal therapy, seven multi- objective methods are selected and used. Optimization methods form decision support module which is implemented in the medical computer system. To evaluate a performance of the system, test examples are analysed. Conclusion includes the summary and proposals of further research. © 2012 IEEE.

关键词： Multiobjective optimization

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Exponential stability of boundary controlled port Hamiltonian systems with dynamic feedback

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IFAC Proceedings Volumes 2013年第26期46卷 115-120页

作者： Hector Ramirez Hans Zwart Yann Le Gorrec Department of Automation and Micro-Mechatronic Systems FEMTO-ST UMR CNRS 6174 ENSMM 26 chemin de l'épitaphe F-25030 Besançon France University of Twente Faculty of Electrical Engineering Mathematics and Computer Science Department of Applied Mathematics P.O. Box 217 7500 AE Enschede The Netherlands

In this paper it is shown that an input strictly passive linear finite dimensional port-Hamiltonian controller exponentially stabilizes a large class of boundary control systems. This follows since the finite dimensional controller dissipates the energy flowing through the boundaries of the infinite dimensional system. The assumptions on the controller is that it is input strictly passive and that it is exponentially stable. The result is illustrated on the model of a boundary controlled DNA-manipulation process.

关键词： Boundary control systems infinite dimensional port Hamiltonian systems exponential stability passivity

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A positive tensions PID controller for a planar cable robot: An experimental study

A positive tensions PID controller for a planar cable robot:...

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RSI/ISM International Conference on Robotics and Mechatronics (ICROM)

作者： Mohammad A. Khosravi Hamid D. Taghirad Reza Oftadeh Advanced Robotics and Automated Systems (ARAS) Industrial Control Center of Excellence (ICCE) Faculty of Electrical and Computer Engineering K. N. Toosi University of Technology Tehran Iran Intelligent Hydraulics and Automation Department (lHA) Tampere University of Technology Finland

In this paper design and control of planar cable-driven parallel robots are studied in an experimental prospective. Since in this class of manipulators, cable tensionability conditions must be met, feedback control of such robots becomes more challenging than for conventional robots. To meet these conditions, internal force control structure is introduced and used in addition to a PID control scheme to ensure that all cables remain in tension. A robust PID controller is proposed for partial knowledge of the robot, to keep the tracking errors bounded. Finally, the effectiveness of the proposed control algorithm is examined through experiments on K.N. Toosi planar cable-driven robot and it is shown that the proposed control structure is able to provide suitable performance in practice.

关键词： PD control Assembly Logic gates Servomotors Force

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Computing dynamically equivalent realizations of biochemical reaction networks with mass conservation

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AIP Conference Proceedings 2013年第1期1558卷 2356-2359页

作者： János Rudan Gábor Szederkényi Katalin M. Hangos Faculty of Information Technology Pázmány Péter Catholic University Práter u. 50/a H-1083 Budapest Hungary Faculty of Information Technology Pázmány Péter Catholic University Práter u. 50/a H-1083 Budapest Hungary and Process Control Research Group Computer and Automation Research Institute Hungarian Academy of Sciences. Hungary Process Control Research Group Computer and Automation Research Institute Hungarian Academy of Sciences. Kende u. 13-17 H-1111 Budapest Hungary and Dept. of Electrical Engineering and Information Systems Faculty of Information Technology Univer Hungary

An algorithm for the computation of mass conservative dynamically equivalent chemical reaction network structures is proposed in this paper. The algorithm is formulated in an optimization-based framework as a mixed-in...

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