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World Congress on Intelligent control and Automation (WCICA)

作者： Xiangrong Tong Hongchao Zhao Guohu Feng Institute of Computer Science and Technology Yantai University Yantai Shandong China Department of Scientific Research Naval Aeronautical Engineering Institute Yantai Shandong China Research Institute of Flight Vehicle's Control System Naval Aeronautical Engineering Institute Yantai Shandong China

The overload control system of anti-warship missiles is researched. The output-redefinition technique is used to eliminate the nonminimum phase characteristics of missile overload output. In order to improve the robustness of the control system in the whole control process, an adaptive global terminal sliding mode (TSM) control method is proposed to control the missile's modified output. With this method, the system states lie in the global TSM at the onset of the motion, hence the reaching phase is removed from the control system. The adaptive controller is applied to estimate the upper bound of the lumped uncertainty. The validity of the proposed method is demonstrated through a simulation example

关键词： Programmable control Adaptive control Sliding mode control Missiles control systems Robust control Process control Motion control Adaptive systems Upper bound

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Bayesian Decision-Theoretic Causation Analysis for Gas Explosion

Bayesian Decision-Theoretic Causation Analysis for Gas Explo...

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IEEE International Conference on Mechatronics and Automation

作者： Linqin Cai Yining Sun Tao Mei Zuchang Ma Center for Biomimetic Sensing and Control Research Institute of Intelligent Machines University of Science and Technology Hefei China Institute of Computer Application Chinese Academy of Engineering and Physics Mianyang China Institute of Intelligent Machine Chinese Academy and Sciences Hefei China

Frequent mine gas incident in China fully shows there must be many undiscovered essential factors in all previous gas incident investigations. Exploring a new analysis approach is vital to prevent and control mine gas emergency. A Bayesian decision-theoretic causation analysis method was introduced to study the mine gas incident. A typical gas explosion case was explained. The interaction law of human, machine, environment, and management factors causing mine gas incident was discussed. The evolution process of the connotative factors from the uncertain state to the certain state was discovered, and the relationships between the external factors and the internal factors were revealed

关键词： Bayesian methods Explosions Decision theory Machine intelligence Humans Environmental management Fault trees US Department of Transportation Automation Biomimetics

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Anti-windup control for MIMO system using timescale transform

Anti-windup control for MIMO system using timescale transfor...

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IEEE International Conference on computer-Aided Design

作者： M. Sampei S. Nakaura Y. Hoshi T. Hojo A. Kurosaki Department of Mechanical and Control Engineering Tokyo Institute of Technology Meguro Tokyo Japan Department of Computer Science and Media Engineering Musashi Institute of Technology Setagaya Tokyo Japan Research and Development Headquarters Yamatake Corporation Fujisawa Kanagawa Japan

Most of the inputs of actual plants have the limitations of variation range. These limitations may be due to physical restrictions on the actuators. It is well known that the effects of actuator saturation cause the deterioration of control performance called windup phenomena. In this paper, a novel anti-windup strategy for multi-input multi-output (MIMO) systems subject to actuator saturation is proposed. The method is based on the notion of timescale transform. Some simulation and experimental results are presented to show the effectiveness of the proposed method

关键词： control systems MIMO Design methodology Actuators Windup Vectors Safety control system analysis Performance analysis Frequency domain analysis

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Embedded computer based non-linear vehicle control: A quadrotor helicopter experiment

Embedded computer based non-linear vehicle control: A quadro...

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10th Mini Conference on Vehicle System Dynamics, Identification and Anomalies, VSDIA 2006

作者： Soumelidis, Alexandres Lantos, Béla ProháSzka, Zoltán Regula, Gergely Bauer, Péter Computer and Automation Research Institute Hungarian Academy of Science H-l 111 Budapest Kende u. 13-17 Hungary Department of Control Engineering and Information Technology Budapest University of Technology and Economics Magyar tudósok körútja 2 H-l 117 Budapest Hungary Department of Transportation Automation Budapest University of Technology and Economics H-l 111 Budapest Bertalan L.u.2 Hungary

ISBN: (纸本)9789634209683

Because of the largely nonlinear nature of the problem, controlling vehicles implies complicated control algorithms that require the use of embedded computing on board. Solving a control problem in this field involves numerous tasks from the modeling and identification of the vehicle object through the control design based upon several control paradigms (e.g. optimal, robust, linear, LPV, or nonlinear design), to the implementation of the controller in on-board electronics. For prototyping purposes a MATLAB/Simulink environment of Math-works complemented with a variety of the real/time and embedded control design tools has proved to be advantageous. A small-size indoor quadrotor helicopter has been selected as a platform to find the correct methodology, to explore the capabilities of the applicable tools, by covering the full design and implementation process as well as ensuring low implementation costs and risk-free test environment. The quadrotor helicopter uses brush-less DC motors as actuators, an internal sensor module is used to get measurements of its movement while a vision-based indoor position system provides its exact position. The control is realized by a Freescale MPC555 microcomputer, which is equipped with high level development tools in MATLAB. The embedded control is developed on the basis of the nonlinear model of the quadrotor helicopter by applying the technique of back-stepping.

关键词： Embedded systems

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Complete Kernel Fisher discriminant analysis of Gabor features with fractional power polynomial models for face recognition

Complete Kernel Fisher discriminant analysis of Gabor featur...

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IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Jun-Bao Li Jeng-Shyang Pan Zhe-Ming Lu Jung-Chou Harry Chang Department of Automatic Test and Control Harbin Institute of Technology Harbin China Department of Electronic Engineering National Kaohsiung University of Applied Sciences Kaohsiung Taiwan Institute for Computer Science University of Freiburg Freiburg im Breisgau Germany Division of Research and Development Viswis Inc. Taipei Taiwan

This paper presents a novel face recognition method based on complete Kernel Fisher discriminant (CKFD) analysis of Gabor features with power polynomial models. By integrating the Gabor wavelet representation of face images and the enhanced powerful discriminator named CKFD analysis, the method is robust to changes in illumination and facial expressions and poses. On the other hand, the extended polynomial Kernels, namely fractional power polynomial (FPP) models, are employed in CKFD analysis, which enhance face recognition performance. Comparing with existing PCA, LDA, KPCA, KFD and CKFD methods, the proposed method gives superior results in the ORL and Yale face databases. Its good performance in the two face databases gives the promising idea to solve the pose, illumination, and expression (PIE) problem of face recognition

关键词： Kernel Polynomials Face recognition Lighting Databases Wavelet analysis Image analysis Robustness Performance analysis Principal component analysis

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Stereo Vision based Relative Pose and Motion Estimation for Unmanned Helicopter Landing

Stereo Vision based Relative Pose and Motion Estimation for ...

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International Conference on Information and Automation (ICIA)

作者： Cui Xu Liankui Qiu Ming Liu Bin Kong Yunjian Ge Department of Automation University of Science and Technology Hefei Anhui China Center for Biomimetic Sensing and Control Research Institute of Intelligent Machines Chinese Academy and Sciences Hefei Anhui China Department of Electrical and Computer Systems Engineering Monash University Melbourne VIC Australia

In this paper, we present a real-time stereo vision based pose and motion estimation system that will be used for landing an unmanned helicopter on a moving target such as a ship deck. The vision algorithm mainly consists of a feature extraction task and a pose and motion estimation task. The 2D planer target with regular features defined can significantly simplify the feature extraction task such as corner detection and feature points matching. To effectively estimate the distance between the camera carrier and target a stereo camera system is applied. By means of sub-pixel corner location the precisions of pose estimation and relative motion detection can be improved. We present results from semi-physical simulation which show that our vision algorithm is accurate and robust. The methodology provides an effective subsystem for the development of autonomous robot helicopter that will land on a given target under the guide of vision.

关键词： Stereo vision Motion estimation Helicopters Feature extraction Cameras Robot vision systems Real time systems Marine vehicles Metalworking machines computer vision

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Fabrication and characterization of GaAs/AlGaAs planar resonant tunneling transistor

Fabrication and characterization of GaAs/AlGaAs planar reson...

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IEEE Nanotechnology Materials and Devices Conference (NMDC)

作者： SeungHun Son JungIl Lee YongJu Park YunSeop Yu SungWoo Hwang Doyal Ahn Departmentof Electronics & Computer Engineering Korea University Seoul South Korea Semiconductor Materials Laboratory Nano Device Research Center Korea Institute of Science and Technology Seoul South Korea Department of Information & Control Engineering Hankyong National University Anseong Gyeonggi South Korea Institute of Quantum Information Processing & Systems University of Seoul Seoul South Korea

We have demonstrated electron transport in enhancement mode in-plane-gate (IPG) quantum dot (QD) transistors. A deep etched trench allows a large positive bias on the IPG, with negligible leakage current. Such enhancement mode operation has made it possible to populate ultra-small QDs with electrons. Strong NDR peaks and SET are observed in a wide gate bias window. The position of the NDR peaks systematically moves with the change of gate bias until, and also after the SET regime is reached. The size of the QD is estimated from the SET data, giving quantum energy level spacing consistent with the evolved NDR positions.

关键词： Fabrication Gallium arsenide Resonant tunneling devices Capacitance Quantum computing Electrons Etching Transistors Quantum dots Energy states

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A web-based integrated education system for a seamless environment among teachers, students, and administrators

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Systems and computers in Japan 2006年第5期37卷 14-24页

作者： Hanakawa, Noriko Akazawa, Yoshiko Mori, Akira Maeda, Toshiyuki Inoue, Shunji Tsutsui, Shigeyoshi Faculty of Management Information Hannan University Matsubara 580-8502 Japan System Engineering Division Solutions and Services Educational Solutions Group Fujitsu Limited Tokyo 105-7123 Japan Research Center for Computer Science Hannan University Matsubara 580-8502 Japan Faculty of Management Information Hannan University Corporate Information Graduate School Information Processing Society of Japan IEEE System Engineering Division Solutions and Services Educational Solutions Group Research Center for Computer Science Faculty of Management Information Hannan University Institute of Electrical Engineers of Japan Japanese Society for Artificial Intelligence Japan Fuzzy Knowledge and Information Society Institute of Systems Control and Information Engineers

The authors created a Web-based integrated education support system that unified the data in the administrative system and the education system in a university. The purpose of the system was to make the administrative system and education system data that had previously been separated seamless, and to implement seamless access from inside and outside the university while maintaining security. Moreover, the authors emphasized the development of a portal site as a point of contact for the system. As a result of using software packages and existing technology for the other servers and databases, and making a policy of not changing the administrative system at all, the authors were able to create the system in a short period of 5 months. After the system was operational, preparation and review for class could be done at home, and evaluations of reports and final determinations of grades could be done from outside the university. This confirmed that the education system was effective. Finally, the authors looked at the trouble and performance problems that occurred involving local rules in the business department during operation, as well as countermeasures for them. © 2006 Wiley Periodicals, Inc.

关键词： Learning systems

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A framework for optimizing end-to-end connectivity degree in mobile Ad-hoc networks

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Journal of Network and Systems Management 2005年第4期13卷 479-497页

作者： Badonnel, Remi State, Radu Festor, Olivier Schaff, Andre MADYNES Research Team LORIA-INRIA Lorraine Campus Scientifique BP 239 54600 Villers-les-Nancy Cedex France French National Institute in Computer Science INRIA INRIA France IRTF NMRG Department of Computer Science ESIAL Henri-Poincar University Nancy France

Mobile ad-hoc networks are networks spontaneously deployed from a set of mobile devices without requiring any fixed infrastructures. The increasing interest in this technology raises new research challenges towards providing them a management framework. Network users expect a service level as close as in regular fixed networks. A primary expectation is the capability to communicate (end-to-end) with the other network users. We present in this paper a framework for monitoring and optimizing this capability in mobile ad-hoc networks. Our normalized metric, called end-to-end connectivity degree, characterizes the number of nodes, that a node can reach in the entire network. We describe a management architecture to monitor this metric together with the network density, and illustrate how routing configuration can be performed to optimize it. © 2005 Springer science+Business Media, Inc.

关键词： Networks (circuits)

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Abstracts from the 6th International Conference on the Engineering of Sport, 10-14 July 2006, Olympic Hall, Munich, Germany Abstracts

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SPORTS ENGINEERING 2006年第2期9卷 107-127页

作者： [Anonymous] University of Massachusetts Lowell USA Science & Mathematics Department Kettering University Flint USA University of Illinois USA Western Michigan University USA Washington State University USA Casecade Engine USA Kanazawa University Japan Sumitomo Light Metal Japan Massachusetts Institute of Technology USA Nanyang Technological University Bioengineering Singapore University of Vienna Anthropology Austria Department of Mechanical Engineering University of Bath UK INSA Lyon France PETZL France Sports Materials Research Group University of Birmingham UK Laboratoire de Modélisation des Activités Sportives Bourget du Lac France Technical University Kaiserslautern Germany Department of Engineering Mechanics United States Air Force Academy Colorado Springs USA SRAM Corporation Colorado Springs USA Sports Engineering Research Group University of Sheffield UK Sports Engineering CSES Sheffield Hallam University USA Sports Engineering CSES Sheffield Hallam University UK Technische Universität München Germany Rush University Medical Center Chicago USA Faculty of Sports Science Department of Sport Equipment & Materials TU München Germany RMIT University Australia Institute of Health and Sports Sciences University of Tsukuba Ibaraki Japan Machine and Control Department Polytechnic University Kanagawa Japan SRI Sports Ltd. Hyogo Japan SRI Research and Development Ltd. Hyogo Japan Mizuno Corporation Osaka Japan Fukuoka Institute of Technology Fukuoka Japan University of Limerick Éire Graduate School of Engineering Hokkaido University Japan Faculty of Engineering Kitami Institute of Technology Japan University of Calgary Canada TaylorMade-adidas Golf Company USA Davis Mechanical Engineering University of California USA Davis Mechanical & Aeronautical Engineering University of California USA University of Wales Institute Cardiff Cardiff School of Sport UWIC Cardiff Cardiff School of Sport UWIC Wales Loughborough University UK Cranfield University UK Cr

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