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Applications of RFID on the inventory management of yacht equipments suppliers

Journal of Taiwan Society of Naval Architects and Marine Engineers 2006年第1期25卷 47-58页

作者： Yang, C.T. Sung, T.C. Chiu, C.H. Small and Medium Enterprise Computer and Technology Center Department of Systems Engineering and Naval Architecture National Taiwan Ocean University Keelung 202 Taiwan

Radio Frequency Identification (RFID) system which is based on a contactless sensing identification technology causes dramatic change in the exiting business management strategies. The technologies in the fields of inventory automation and production automation will be highly promoted with the application of RFID. Today most research work of RFID applications concentrate on using RFID tag as a product description device. In this paper, we propose a new usage development. The RFID tag will also be treated as a portable electronic form. With uniqueness of every RFID tag and the digital signature technique, the RFID tag can be as a secured storage device. A demonstration system for the inventory works of yacht equipments suppliers is presented to show the workability of this new development. The most notable characteristic of this system is the non-interrupted e-process under the failure condition of computer network which will be switched to used manual process in before.

关键词： Inventory control

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Method of Petri net synthesis and its application in system modeling

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Xitong Fangzhen Xuebao / Journal of System Simulation 2006年第2期18卷 271-277页

作者： Xia, Chuan-Liang Department of Computer Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China Department of Computer Science and Technology Shandong Institute of Architecture and Engineering Jinan 250014 China

A scheme was obtained using synthesis of Petri nets sharing a kind of subnet, according to process of several enterprises sharing a plant to produce some product. First, the Petri net model of single enterprise in sharing a plant to produce some product was set up. Second, the global Petri net model was obtained through using shared subnet synthesis method. Using the global Petri net model people can actualize synchronization and save resources. Several conditions were proposed for the synthesis net of free choice nets (FC) {asymmetric choice nets (AC)} is a FC net {AC net}. Some conditions of the structural liveness preservation by the shared subnet synthesis of Petri nets were obtained. These results are useful for studying the properties of Petri synthesis nets and establishing models for large complex system.

关键词： Petri nets Structural liveness Synthesis System modeling

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A genetic algorithm for the optimization of cable routing

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systems and computers in Japan 2006年第7期37卷 61-71页

作者： Ma, Xuan Iida, Kazuhiro Xie, Mengchun Nishino, Junji Odaka, Tomohiro Ogura, Hisakazu Graduate School of Engineering University of Fukui Fukui City 910-8507 Japan Wakayama National College of Technology Gobo City 644-0023 Japan Faculty of Automation and Information Engineering Xi an University of Technology B Techno College Department of Electrical and Computer Engineering Wakayama National College of Technology Information Processing Society of Japan China Mechanical Design Society Department of Systems Engineering University of Electro-Communications Japan Society for Fuzzy Theory and Intelligent Informatics Japanese Academy of Facial Studies Japan Society of Kansei Engineering Graduate Program of Nuclear Power and Energy Safety Engineering Graduate School of Engineering Fukui University IEEE CS ACM IPSJ IEICE JSMBET Department of Human and Artificial Intelligent Systems JSAI Japan SOFT IEEE

In this paper the authors propose a structural method for a genetic algorithm (GA) for the optimization problem of cable routing in which cables have to be laid optimally. When there are no limits on the layout routes, the optimal routes for the individual cables can be found using the Dijkstra method in a finite discrete graph. However, when there are limits on the capacity in the layout routes, optimization cannot be performed using the Dijkstra method. The proposed GA is a two-level hierarchical GA that uses chromosome coding involving two levels. The routes for each cable and the combinations of cable routes are defined respectively, and layout route selection is optimized overall through genetic operations involving these levels. Block crossover and block mutation are used as genetic operations in the first level. In addition, a method to take advantage of lethal genes, which do not satisfy the constraints and are generated in the second level is used. computer simulations confirm that the two-level hierarchical GA with these genetic operations functions effectively for the optimization problem of cable routing. © 2006 Wiley Periodicals, Inc.

关键词： Electric cable laying

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Low frequency architecture for multi-lamp CCFL systems with capacitive ignition

Conference Proceedings - IEEE Applied Power Electronics Conf...

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Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC 2005年 2卷 1072-1078页

作者： Doshi, Montu Bian, Jianjian Zane, Regan Azcondo, Francisco J. Department of Electrical and Computer Engineering University of Colorado at Boulder Boulder CO 80309-0425 University of Cantabria Electronics Technology Systems and Automation Engineering Department Ave. de los Castros s/n 39005 Santander Spain

ISBN: (纸本)0780389751

This paper presents a low frequency architecture for driving parallel cold cathode fluorescent lamps (CCFLs) in large screen LCD TV backlighting applications. Key to the architecture is a proposed capacitive coupling approach for ac lamp ignition. The system consists of a single high voltage converter, an ac lamp ignition circuit, current regulation devices and a single primary controller. The topology is capable of driving an arbitrary number of parallel lamps with independent accurate lamp current regulation, while maintaining high efficiency and achieving significant size, weight, and cost reduction when compared to typical high frequency ac ballast designs. Experimental results for a pair of parallel 800 V 40 cm CCFLs demonstrate simultaneous ignition and dc current regulation. © 2005 IEEE.

关键词： Cold cathode tubes

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Rough rings revisited

Rough rings revisited

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International Conference on Machine Learning and Cybernetics, ICMLC 2005

作者： Han, Su-Qing Cheng, Wei Wang, Jue Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Sciences Beijing 100080 China Department of Mathematics Taiyuan Teacher's College Taiyuan 030012 China College of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 China

ISBN: (纸本)078039092X

Rough groups and rough rings have been investigated by Biswas & Nanda [Bull. Polish Acad. Sci. Math. 42 (1994) 251-254], Kuroki and Wang [Inform. Sci. 90 (1996) 203-220] and Dawaz [Inform. Sci. 164 (2004) 147-163], But in which some conclusions do not always hold in general. In this paper, we have revisited rough rings in a uniform and complete form, some new properties of rough rings are obtained, and the modified versions of those conclusions that are improper in Davvaz [Inform. Sci. 164 (2004) 147-163] are modified. ©2005 IEEE.

关键词： Learning systems

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Low frequency architecture for multilamp CCFL systems with capacitive ignition

Low frequency architecture for multilamp CCFL systems with c...

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Annual IEEE Conference on Applied Power Electronics Conference and Exposition (APEC)

作者： M. Doshi J. Bian R. Zane F.J. Azcondo Colorado Power Electronic Center (CoPEC) Department of Electrical and Computer Engineering University of Colorado Boulder CO USA Electronics Technology Systems and Automation Engineering Department University of Cantabria Santander Spain

This paper presents a low frequency architecture for driving parallel cold cathode fluorescent lamps (CCFLs) in large screen LCD TV backlighting applications. Key to the architecture is a proposed capacitive coupling approach for AC lamp ignition. The system consists of a single high voltage converter, an AC lamp ignition circuit, current regulation devices and a single primary controller. The topology is capable of driving an arbitrary number of parallel lamps with independent accurate lamp current regulation, while maintaining high efficiency and achieving significant size, weight, and cost reduction when compared to typical high frequency AC ballast designs. Experimental results for a pair of parallel 800 V 40 cm CCFLs demonstrate simultaneous ignition and DC current regulation

关键词： Frequency Ignition Current control Cathodes Fluorescent lamps TV Coupling circuits Voltage control Control systems Circuit topology

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A new parallel algorithm for security constrained optimal power flow with a nonlinear interior point method

A new parallel algorithm for security constrained optimal po...

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IEEE General Meeting Power& Energy Society

作者： Wei Qiu A.J. Flueck Feng Tu Department of Electrical and Computer Engineering Illinois Institute of Technology Chicago IL USA AREVA T&D Automation슠and Information Systems Bellevue WA USA

This paper presents a new algorithm for parallel solution of security constrained optimal power flow (SCOPF) with a nonlinear interior point method (IPM). In the parallel algorithm proposed in this paper, the SCOPF problem is easily decomposed and distributed to a set of processors where the computations are done independently on a subset of the contingency states. Moreover, a full AC model is used in this parallel algorithm. The new parallel algorithm has been tested for accuracy and speedup with two systems: one with 57 buses, 80 branches and 9 contingencies, another with 3493 buses, 6689 branches and 79 contingencies. With less than 1% relative error and more than a factor of 10 speedup, the test results demonstrate that this new parallel algorithm with IPM is accurate and efficient for large-scale SCOPF problems.

关键词： Parallel algorithms Load flow DC generators Power generation Linear programming Power system security Bismuth Nonlinear control systems Control systems Character generation

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Generating multi-folded torus chaotic attractors

Generating multi-folded torus chaotic attractors

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International Conference on Physics and Control

作者： Simin Yu Jinhu Lu Henry Leung Guanrong Chen College of Automation Guangdong University of Technology Guangzhou China Key Laboratory of Systems and Control Academy of Mathematics and Systems Science Chinese Academy and Sciences Beijing China Department of Electrical and Computer Engineering University of Calgary AB Canada Department of Electronic Engineering City University of Hong Kong China

A systematic methodology for generating multi-folded torus chaotic attractors from a simple three-dimensional piecewise-linear system is presented in this paper. Theoretical analysis shows that multi-folded torus chaotic attractors can be created via alternative switching between two piecewise-linear systems. A novel circuit diagram is designed for physically creating multi-folded torus chaotic attractors. This is the first time in the literature to experimentally verify a maximum 9-folded torus chaotic attractor that is generated by an analog circuit.

关键词： Chaos Piecewise linear techniques Oscillators Laboratories Analog circuits Electric breakdown Bifurcation Educational institutions automation Automatic generation control

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N-scroll chaotic attractors from a general jerk circuit

N-scroll chaotic attractors from a general jerk circuit

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IEEE International Symposium on Circuits and systems (ISCAS)

作者： Simin Yu Jinhu Lu H. Leung Guanrong Chen College of Automation Guangdong University of Technology Guangzhou China Academy of Mathematics and Systems and Science Beijing China Department of Electrical and Computer Engineering University of Calgary AB Canada Department of Electronic Engineering City University of Hong Kong Hong Kong China

The paper proposes a novel nonlinear modulating function approach for generating N-scroll chaotic attractors based on a general jerk circuit. The systematic nonlinear modulating function methodology developed can arbitrarily design the swings, widths, slopes, breakpoints, equilibrium points, and shapes of the N-scroll chaotic attractors; via the adjustable sawtooth wave, triangular wave, and transconductor wave functions. A block circuit diagram is designed for hardware implementation of various 3- to 12-scroll attractors via switchings of the switch linkages. This is the first time that a 12-scroll chaotic attractor, generated by an analog circuit under laboratory conditions, has been verified experimentally.

关键词： Chaos Switching circuits Switches Shape Transconductors Wave functions Hardware Couplings Analog circuits Laboratories

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Experimental verification of 3-D hysteresis multi-scroll chaotic attractors

Experimental verification of 3-D hysteresis multi-scroll cha...

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IEEE International Symposium on Circuits and systems (ISCAS)

作者： Jinhu Lu Simin Yu H. Leung Guanrong Chen Academy of Mathematics and Systems and Science Beijing China College of Automation Guangdong University of Technology Guangzhou China Department of Electrical and Computer Engineering University of Calgary AB Canada Department of Electronic Engineering City University of Hong Kong Hong Kong China

This paper introduces a novel circuit design for experimental verification of 3D hysteresis multi-scroll chaotic attractors. A block circuit diagram is shown for realizing 1D 5/spl sim/11-scroll, 2D 3/spl times/5/spl sim/11-grid scroll, and 3D 3/spl times/3/spl times/5/spl sim/11-grid scroll chaotic attractors by operating the switches. Moreover, this design provides a theoretical principle for hardware implementation of chaotic attractors in multi-directions with a large number of scrolls.

关键词： Hysteresis Chaos Circuit synthesis Hardware Electronic circuits Resistors Mathematics Educational institutions Design automation Design engineering

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