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4th International Symposium on Measurement, Analysis and Modelling of Human Functions 2010, ISHF 2010

作者： Rodriguez, Ricardo Ichiji, Kei Bukovsky, Ivo Bila, Jiri Homma, Noriasu Department of Instrumentation and Control Engineering Czech Technical University Prague Czech Republic Research Division on Advanced Information Technology Cyberscience Center Tohoku University Japan Mechatronics Department Technological University of Ciudad Juarez Mexico

ISBN: (纸本)9781617389849

The paper presents a study and comparison of static feedforward neural network performance for prediction of lung motion. A feedforward neural network with local and global optimization to predict human lung respiration is presented. Applicability of the Levenberg-Marquardt algorithm and the backpropagation learning rule during the batch training are discussed. Sliding window learning for retraining static neural network is applied as a more efficient learning prediction method. Prediction results are presented and compared to demonstrate the effectiveness of the applied neural network method.

关键词： Forecasting

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Vision based lane keeping assistance control triggered by a driver inattention monitor

Vision based lane keeping assistance control triggered by a ...

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2010 IEEE International Conference on Systems, Man and Cybernetics, SMC 2010

作者： Tunçer, Özgür Güvenç, Levent Coşkun, Fuat Karsligil, Elif Ford Otosan - Gebze Engineering Gebze Kocaeli Turkey ITU Mekar Labs. Automotive Control and Mechatronics Research Center Istanbul Technical University Istanbul Turkey Department of Computer Engineering Intelligent System Laboratory Yildiz Technical University Istanbul Turkey

ISBN: (纸本)9781424465880

Inattentive and impaired drivers are a major cause of road accidents. Especially when impaired by drugs, fatigue or physical handicaps, the skill levels, driving habits, capabilities and decisions of a human driver are adversely affected. In such cases, the ability of a driver to safely operate a vehicle may be augmented considerably by well tuned and driver adaptive warning and assistance systems. Data from 105 drivers were collected in the Drive Safe project on an approximately 30 km route containing both city and highway traffic. The data was used to develop methods for determining inattentive/impaired drivers. This paper is on a lane keeping driver assistant system that is activated once such an inattentive/impaired driver who cannot perform a good task of lane keeping by himself is determined. Robust, parameter space based and velocity scheduled control design techniques carried out in the COMES toolbox are used for designing the lane keeping controller. A camera based image processing algorithm for lane detection and tracking is used. The image processing algorithm and the lane keeping assistant control system are evaluated first using offline simulations and then using more realistic, real time hardware-in-the-loop simulations. While a relatively simple linear model is used for lane keeping controller design, evaluation of the designed controller also uses the high fidelity, high order, realistic and nonlinear vehicle model in Carmaker HiL. A PC is used for processing video frames coming from an in-vehicle camera pointed towards the road ahead. Lane detection and tracking computations including fitting of composite Bezier curves to curved lanes are carried out in this PC. A dSpace microautobox is available for obtaining the lane data from the PC and the Carmaker vehicle data from the dSpace compact simulator used and calculating the required steering actions and sending them to the Carmaker vehicle model. Offline and real time simulation results demonstrate t

关键词： controllers

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An adaptive multimodality (ECT, ERT and electrodynamic) sensor for multiphase flow measurement 6

An adaptive multimodality (ECT, ERT and electrodynamic) ...

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6th World Congress in Industrial Process Tomography

作者： Deng, Xiang Chen, Dixiang Yang, Wuqiang School of Mechanical Electronic and Control Engineering Beijing Jiaotong University Beijing100044 China School of Mechatronics Engineering and Automation National University of Defence Technology Changsha410073 China School of Electrical and Electronic Engineering The University of Manchester ManchesterM60 1QD United Kingdom

ISBN: (纸本)9780853163220

Accurate measurement of multiphase flows, including gas/solids, gas/liquid and liquid/liquid flows, is still challenging. In principle, electrical capacitance tomography (ECT) can be used to measure the concentration of solids in a gas/solids flow and the liquid (e.g. oil) fraction in a gas/liquid flow if the liquid is nonconductive. Electrical resistance tomography (ERT) can be used to measure a gas/liquid flow if the liquid is conductive. It has been attempted to use a dualmodality ECT/ERT system to measure both the concentration profile and the velocity profile by pixelbased cross correlation. However, this approach is not realistic because of the dynamic characteristics and the complexity of multiphase flows and the difficulties in determining the velocities by cross correlation. In this paper, the issues with dual modality ECT/ERT and the difficulties with pixelbased cross correlation will be discussed. A new adaptive multimodality (ECT, ERT and electrodynamic) sensor, which can be used to measure a gas/solids or gas/liquid flow, will be described. Some details of the electrostatic charge amplifier and signal processing will be discussed. Initial experimental results will be given. © International Society for Industrial Process Tomography, 2010. All rights reserved.

关键词： Liquids

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Modeling of nonlinear wave velocity characteristics in a structural health monitoring system

Modeling of nonlinear wave velocity characteristics in a str...

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IEEE Conference on control Technology and Applications (CCTA)

作者： Benjamin Hartmann Jochen Moll Oliver Nelles Claus-Peter Fritzen Department of Mechanical Engineering Institute of Mechanics and Automatic Control Mechatronics University of Siegen Siegen Germany

In the framework of structural health monitoring the research proposed in this paper focuses on a new methodology to model the nonlinear group velocity characteristics of guided waves in plate-like composite materials based on a experimental dataset. The detection and localization of damages in these composite materials is demanding due to the anisotropic wave propagation. Therefore, a well generalizing and smooth nonlinear model for the group velocities is an important part in the damage localization system. The underlying work analyzes and compares different model structures. The incorporation of physical knowledge about the process into the modeling process turns out to be of fundamental importance. Furthermore, this paper points out which nonlinear optimization approach should be applied to deliver reproducible and robust solutions.

关键词： Polynomials Optimization Mathematical model Sensors Data models Monitoring Training data

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Design of Micro WEDM pulse generator based on fuzzy control

Design of Micro WEDM pulse generator based on fuzzy control

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2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

作者： R.N. Huang B. Liu T. Wang Division of Control and Mechatronics Engineering Harbin Institute of Technology Shenzhen Graduate School Shenzhen China

A Micro WEDM pulse generator is designed in this paper. It can adapt to the needs of various processing conditions. In additional, fuzzy control theory was applied to the pulse generator, which can automatically adjust the processing parameters to improve machining accuracy. So a more powerful Micro WEDM, which can achieve better processing results,is achieved.

关键词： pulse generator Micro WEDM fuzzy control discharge state detection

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Comparison of three electrical capacitance tomography systems

Comparison of three electrical capacitance tomography system...

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IEEE International Conference on Imaging Systems and Techniques

作者： Deng, Xiang Chen, Dixiang Yang, Wuqiang School of Mechatronics Engineering and Automation National University of Defense Technology Changsha 410073 China School of Mechanical Electronic and Control Engineering Beijing Jiaotong University Beijing 100044 China School of Electrical and Electronic Engineering University of Manchester Manchester M60 1QD United Kingdom

ISBN: (纸本)9781424464944

Electrical capacitance tomography (ECT) has been developed for two decades to visualize the internal behavior of industrial processes containing dielectric components. Three different ECT systems have been developed: (1) based on a charge/discharge capacitance measuring circuit, (2) based on an AC circuit and (3) based on an impedance analyzer. In this paper the operation principles, calibration methods and some performance of the three systems are compared. The experimental results prove that the AC-based ECT system is superior to the charge/discharge ECT system. Although the impedance analyzer based ECT system can provide the highest accuracy and the best image quality, it is bulky and expensive. © 2010 IEEE.

关键词： Calibration

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Real-Time Vehicle Models for Simulations of Ride Comfort

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IFAC Proceedings Volumes 2010年第7期43卷 512-517页

作者： Dipl.-Ing. Hendrik Amelunxen Ansgar Trächtler Dr.-Ing. Hagen Haupt Dr.-Ing. Herbert Schütte Heinz Nixdorf Institute University of Paderborn Control Engineering and Mechatronics International Graduate School Dynamic Intelligent Systems dSPACE GmbH Paderborn

The functional development and test of complex automotive mechatronic devices require detailed and sophisticated vehicle models that have to fulfill real-time requirements if they are to be used in hardware-in-the-loop simulations. There is an increasing demand for more detailed plant models as a basis for the development and test of complex control algorithms in ride-comfort. This paper presents a method to integrate ride-comfort characteristics into well-established real-time vehicle models as regards engine-, drivetrain- and carbody vibrations. Thus it is possible to simulate characteristics that are essential for the development and test of comfort-related automotive mechatronic devices.

关键词： Vehicle Dynamics Automotive Simulation Models Real-Time Simulations Ride-Comfort Carbody Modes Engine Vibrations

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An Advanced Electric Vehicle for Development and Test of New Vehicle-Dynamics control Strategies

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IFAC Proceedings Volumes 2010年第7期43卷 152-161页

作者： Dipl.-Ing. Peter Reinold Dipl-Ing. Vitalij Nachtigal Prof. Dr.-Ing. habil. Ansgar Traechtler University of Paderborn Heinz Nixdorf Institute Control Engineering and Mechatronics Pohlweg 98 33098 Paderborn Germany (Tel: +49-5251-5554

In an introduction, the present paper gives a short survey of existing vehicle-dynamics control systems that is based on some examples and thus does not claim to be complete. There is a tendency towards an increased interlinking of these systems and, as a result, a need for flexible automotive testing platforms. As an approach, an electric X-by-wire test vehicle which was designed and mounted for developing and testing new strategies of vehicle-dynamics control is presented. It is built up modularly and provides numerous degrees of freedom that enable a control strategy which is based on an optimization of the tire forces. That strategy is also presented. It takes into account possible actuator breakdowns and uses the redundancy in the vehicle to realize the desired movement even in the case of such a breakdown. An outlook on future possibilities in vehicle-dynamics control resulting from the use of self-optimization is also given.

关键词： Electric Vehicles X-by-wire Vehicle-dynamics control Optimization Redundancy Self-optimization

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ESA in discrete time-delay systems via memory output feedback

ESA in discrete time-delay systems via memory output feedbac...

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Chinese control Conference (CCC)

作者： Fuming Li Jianchun Peng Guang-Ren Duan Shenzhen University College of Mechatronics and Control Engineering 518060 China Harbin Institute of Technology Center for Control Theory and Guidance 150001 China

This paper considers eigenstructure assignment (ESA) in discrete time-delay systems via memory output feedback. Parametric expression for the left and right closed-loop eigenvectors associated with the closed-loop eigenvalues and two simple and complete parametric solutions for the feedback gain matrix are obtained on the basis of the parametric solution of the generalized high-order Sylvester matrix equation. This method provides more freedom, possesses good reliability, and does not impose any restriction on the closed-loop eigenvalues. A numerical example demonstrates that this approach is simple and effective for design of discrete time-delay systems.

关键词： Nickel Output feedback Equations Eigenvalues and eigenfunctions Electronic mail Mercury (metals) TV

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Parametric approaches for ESA in discrete time-delay systems via memory state feedback

Parametric approaches for ESA in discrete time-delay systems...

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Chinese control Conference (CCC)

This paper proposes a memory state feedback controller for discrete time-delay systems based on the state feedback eigenstructure assignment (ESA) result for high-order linear systems. It is shown that the problem is closely related with a type of so-called high-order Sylvester matrix equations. Through establishing two complete parametric solutions to this type of matrix equations, two complete parametric methods for the proposed eigenstructure assignment problem are presented. Both methods give simple complete parametric expression for the feedback gains and the closed loop eigenvector matrices. The first one mainly depends one a series of singular value decompositions, and is thus numerically simple and reliable; the second one utilizes the right factorization of the systems, and allows the closed-loop eigenvalues to be set undetermined and sought via certain optimization procedures. An example shows the effect of the proposed approaches.

关键词： Artificial neural networks Nickel Equations Electronic mail State feedback Matrix decomposition Optimization

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