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Cost Oriented VR-Simulation Environment for computer Aided control Design

IFAC Proceedings Volumes 2001年第29期34卷 40-46页

作者： Dirk Wollherr Martin Buss Control Systems Group Faculty of Electrical Engineering and Computer Science Technical University Berlin

In this paper we propose the use of inexpensive offthe- shelf hardware and software in place of high-cost commercial solutions to easily set up graphical VR environments and simulations with a human in the control loop. For this purpose we have developed a generic simulation environment which permits to rapidly implement control simulation and evaluation experiments. As an example setup a car simulator with a human in the control loop is presented. The user receives both 3D visual and haptic feedback while driving the simulated vehicle.

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Recurrent neuro-fuzzy modeling of a biotechnological process

Recurrent neuro-fuzzy modeling of a biotechnological process

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European control Conference (ECC)

作者： G. I. Sainz M. J. Fuente P. Vega Department of Systems Engineering and Control University of Valladolid Science Faculty Valladolid Spain Department of Computer Sciences and Control University of Salamanca Béjar Salamanca Spain

This paper deals with the develop of a new recurrent neuro-fuzzy model for complex systems from input-output data. In this paper a recurrent fuzzy neural network, called RFasArt (Recurrent FasArt), has been applied to model a complex biotechnological process: a wastewater treatment plant. This network is based on the Adaptative Resonance Theory (ART) but introducing formalisms from the fuzzy set theory and taking into account the contextual information in its processing stage. In order to compare the results obtained with this fuzzy neural network, a classical recurrent neural network has been implemented and used to model the same process. The results shows the better behaviour of the RFasArt system. At the same time with this architecture it is possible to obtain a knowledge base of fuzzy rules where is stored all the knowledge of the plant learned by the fuzzy neural network.

关键词： Biomass Substrates Wastewater treatment Biological system modeling Mathematical model Modeling Subspace constraints

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Hybrid leader-follower and fuzzy-Petri-net traffic rate control and supervision in network systems

Hybrid leader-follower and fuzzy-Petri-net traffic rate cont...

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5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service, TELSIKS 2001

作者： Dimirovski, G.M. Jing, Yuanwei Zhang, Siying Dept. of Computer Engineering Faculty of Engineeing DOGUS University Zeamet Sk. 21 TR-81010 Kadikoy-Istanbul Turkey Institute of Automation and Systems Engg. Faculty of Electical Engineering Methodius University MK-1000 Skopje Macedonia Institute of Control Theory School of Information Science and Engineering Northeastern University Shenyang Liaoning 110006 China

ISBN: (纸本)078037228X

This paper addresses networking and traffic control problems in network systems along with the potential for introducing soft-computing applications at supervisory control level. The incentive Stackelberg strategy control concept was introduced to the networking model that comprises subsidiary systems of users and of network. A linear strategy is proposed for the elastic traffic problem, and results are demonstrated and illustrated via Kelly's (1997) example. The presented method is extended to the non-elastic traffic problem and results are also illustrated via a slightly modified Kelly example. Ways of employing combined analytical and soft-computing approaches and techniques in a hybrid framework have been investigated. A fuzzy-Petri-net supervisor is proposed to implement the strategic decision and control layer. Insofar obtained results are rather encouraging, and this research continues further towards possible implementation as well as some open theoretical issues. © 2001 IEEE.

关键词： Game theory

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On simulation based analysis and synthesis of hierarchical network sturctures 6

On simulation based analysis and synthesis of hierarchical n...

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6th European control Conference, ECC 2001

作者： Tanevska, Dijana J. Dimirovski, Georgi M. Stankovski, Mile J. Jing, Yuanwei Makedonski Telekomunikacii AD Orce Nikolov Str. b.b. SkopjeMK-91000 Macedonia Inst. of Automation and Systems Engg. Faculty of Electrical Engg. SS Cyril and Methodius University SkopjeMK-1000 Macedonia Department of Computer Engg. Faculty of Engineering DOGUS University Kadikoy-IstanbulTR-81010 Turkey Dept. of Automatic Control and Control Eng. School of Information Science and Engineering Northeastern University Shenyang Liaoning110006 China

ISBN: (纸本)9783952417362

Analysis of complex systems such as hierarchically structured network systems that are employed in modelling and analysis various aspects and issues of control and management in telecommunications is investigated. Theory of graphs and binary matrices appear to be most suitable tools for modelling the overall structure of complex systems, in general, and of systemic hierarchies, in particular. A systematic methodology has been developed for computer simulation analysis and detecting general hierarchies in communications networking as well as for synthesis of system hierarchies. This methodology is an improved extension of Warfield's technique. © 2001 EUCA.

关键词： Discrete event simulation

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Design and implementation of Automatic Parallel Detection Layer

Design and implementation of Automatic Parallel Detection La...

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IEEE International Conference on systems, Man and Cybernetics

作者： M. Ahamed H. Eldeeb S. Nassar N. Bagherzadeh Computer Science Mathematics Department Faculty of Science Cairo University Cairo Egypt Electrical and Computer Engineering University of California Irvine Irvine CA USA Computer & Control Department Electronic Research Institute Head of Parallel and Distributed Systems team Cairo Egypt Chair of Electrical and Computer Engineering University of California Irvine Irvine CA USA

We develop a new software layer called the Automatic Parallel Detection Layer (APDL) for the automatic transformation from sequential to parallel code. The main interest, in this research, is the parallelism at loop level, because significant parallelism in programs almost invariably occurs in loops. The proposed APDL has five processes for code transformation: the sequential source code parser, data dependence analysis of this code, partitioning, scheduling both task and data, and generating parallel source code. Many cases have been studied to evaluate the performance of the developed layer. The performance is evaluated depending on the execution time of: the sequential code, the parallel programmer code, and the code output from APDL for the same case study. Performance results show that APDL greatly improves the execution time with respect to sequential execution time, and saves on the high cost of a parallel programmer.

关键词： Parallel processing Concurrent computing Programming profession Electronic mail Program processors Distributed computing High performance computing computer science Automatic control Parallel programming

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Hybrid leader-follower and fuzzy-Petri-net traffic rate control and supervision in network systems

Hybrid leader-follower and fuzzy-Petri-net traffic rate cont...

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International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service (TELSIKS)

作者： G.M. Dimirovski Yuanwei Jing Siying Zhang Institute of Automation & Systems Engg. Faculty of Electical Engineering SS Cyril and Methodius University Skopje Macedonia Department of Computer Engineering Faculty of Engineeing Dogus University Istanbul Turkey Institute of Control Theory School of Information Science & Engineering Northeastern University Shenyang Liaoning China

关键词： Communication system traffic control control systems Intelligent networks Game theory Telecommunication control Traffic control Routing control system synthesis Supervisory control Pricing

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A Novel Robot Vision Employing a Silicon Retina

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Journal of Robotics and Mechatronics 2001年第6期13卷 614-620页

作者： Shimonomura, Kazuhiro Kameda, Seiji Ishii, Kazuo Yagi, Tetsuya Faculty of Computer Science and Systems engineering Kyushu Institute of Technology Fukuoka Japan Department of Electronic Engineering Graduate School of Engineering Osaka University Osaka Japan Control Engineering and Science Department at Kyushu Institute of Technology Berkeley Japan Graduate School of Engineering Osaka University Berkeley Japan

A Robot vision system was designed using a silicon retina, which has been developed to mimick the parallel circuit structure of the vertebrate retina. The silicon retina used here is an analog CMOS very large-scale integrated circuit, which executes Laplacian-Gaussian like filtering on the image in real time. The processing is robust to change of illumination condition. Analog circuit modules were designed to detect the contour from the output image of the silicon retina and to binarize the output image. The images processed by the silicon retina as well as those by the analog circuit modules are received by the DOS/V-compatible mother-board with NTSC signal, which enables higher level processings using digital image processing techniques. This novel robot vision system can achieve real time and robust processings in natural illumination condition with a compact hardware and a low power consumption. © 2001, Fuji Technology Press. All rights reserved.

关键词： Field programmable gate arrays (FPGA)

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Feedback control for electromagnetic vibration feeder (application of two-degrees-of-freedom proportional plus integral plus derivative controller with nonlinear element)

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JSME International Journal, Series C: Mechanical systems, Machine Elements and Manufacturing 2001年第1期44卷 44-52页

作者： Doi, Tomoharu Yoshida, Koji Tamai, Yutaka Kono, Katsuaki Naito, Kazufumi Ono, Toshiro Department of Systems and Control Engineering Faculty of Engineering Osaka Prefectural College of Technology 26-12 Saiwai-cho Neyagawa Osaka 572-8572 Japan Department of System Engineering Faculty of Computer Science and System Engineering Okayama Prefectural University 111 Kuboki Soja Okayama 719-1197 Japan Research and Development Department Ishida Co. Ltd. 959-1 Shimomagari Ritto-cho Kurita-gun Shiga 520-3026 Japan Department of Mechanical Systems Engineering College of Engineering Osaka Prefecture University 1 1 Gakuen-cho Sakai Osaka 599-8531 Japan

An electromagnetic-type vibratory feeder of is a typical transportation device used in automatic weighers. As existing feeders are driven by feedforward control, the so-called "firing angle control", the driver cannot negate sudden disturbances. In this study, we consider applying a feedback control for such a feeder system. First, we give the two details of modelings for the vibration part and for the electromagnetic force part. Next, a feedback control system is constructed for the electromagnetic vibration feeder for which we propose a two-degrees-of-freedom proportional plus integral plus derivative (PID) controller with nonlinear elements. Next, we apply the feedback control to the feeder with a standard trough. Finally, we consider a method compatible with many varieties of troughs by adjusting a nonlinear element. On the basis of the results of some experiments, we confirm that the two-degrees-of-freedom PID control is more effective than the conventional firing angle control.

关键词： Mechanics

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Fuzzy Adaptive Output Tracking control of a Class of Composite systems

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IFAC Proceedings Volumes 2001年第3期34卷 81-84页

作者： Bin Liu Yuanwei Jing Siying Zhang G.M. Dimirovski T.D. Kolemishevska Inst. of Control Science School of Information Science & Engg. Northeastern University Po. Box 321 Shenyang Liaoning 110006 P R. of China Department of Computer Engineering Faculty of Engineering DOGUS University Acibadem Kadikoy TR-81000 Istanbul Rep. of Turkey FAX#: + 90-216-327-9631 Inst.of Automation & Systems Engg. Faculty of EE SS Cyril #x0026 Methodius University Karpos 2 b.b. MK-91000 Skopje Rep. of Macedonia

In this paper the output-tracking problem of a class of composite nonlinear systems is studied. Composite system can be represented solely by models on the grounds of its inputs and measurable outputs. It is assumed that (i) the plant system belongs to aclass of composite non linear systems, and that the fuzzy logic control system applied can efficiently use adjustable parameters to approximate its non linear system function. The new theorem guarantees the synthesized indirect fuzzy adaptive control does ensure stable output tracking and possesses the ability to reduce the number of fuzzy rules.

关键词： Adaptive control composite systems fuzzy control MIMO systems nonlinear systems

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Optimal Pricing Strategies Based on Time Delay in Multi-Service Networks

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IFAC Proceedings Volumes 2001年第3期34卷 105-110页

作者： Fude Jin Yuanwei Jing Zhianhua Zhou G.M. Dimirovske K. Sohraby Institute of Control Science School of Information Science & Engineering Northeastern University Shenyang Liaoning 110006 P.R. of CHINA +86-24/2389-3138 Inst. of Automation & Systems Engg. Faculty of EE SSs. Cyril & Methodius University Karpos 2 B.B. P.D.Box 574:MK-1000 Skopje Rep.of Macedonia Fax# +90-216/327-9631 Dept. of Computer Science & Telecommunications University of Missouri-Kansas Kansas City M064110 USA

The problem of the pricing equilibrium in multi-service priority-based networks isstudied by using Stackelberg game theory. Some concepts of the game theory were revisited first. Then, the existing results on two-user, twolevel Nash problem was reviewed briefly. Following this background, a new one-leader, two-level, two-user incentive Stackelberg strategy was derived and proved by employing the time delay involved.

关键词： Communication networks game theory incentives optimal systems priority Stackelberg game

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