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International Conference on Advanced Technologies for communications, ATC

作者： Seong Ho Choi Hyung-Kun Park Nam Ho Kim Sang-Hoon Kim YunSeop Yu raduate School of Bio-Environment & Information Technology ankyong National university Yonggi Korea Information and Communication Engineering Department Korea University of Technology and Education Cheonan ChungNam South Korea Informatian and Communication Engineering Department Korea niversity Of Technology and Education Cheonan City Chungnam Korea Department of Information & Control Engineering and Electronic Technology Institute Hankyong National University Ansung Gyeonggi South Korea Department of Information & Control Engineering and Electronic Technology Institute ankyong National university yonggi Korea

A power- and delay-efficient routing algorithm and emergency-efficient protocol for ubiquitous wireless sensor networks of silver town is presented. For this protocol, the fixed nodes (without any limited resources) are established to one point which can communicate with one-hop to both the sink node and the mobile sensor nodes in the dark region (in which mobile sensor nodes can not communicate to the sink node). The fixed nodes are operated like the fixed cluster header. Our protocol is simulated by using the simulation program for wireless sensor networks. The simulated life time of our routing algorithm is longer than those of LEACH-C and multi-hop and the simulated time delay of our routing algorithm is 1.5 times as fast as one of LEACH-C.

关键词： Wireless application protocol Ubiquitous computing Wireless sensor networks Silver Cities and towns Routing protocols Medical services Educational technology Clustering algorithms Delay effects

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A Design of Time-Varying Auto-Adaptive Tracker

A Design of Time-Varying Auto-Adaptive Tracker

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ISECS International Colloquium on Computing, communication, control, and Management, CCCM

作者： Xianfang Wang Zhiyong Du Feng Pan Henan Institute of science and technology Xinxiang Henan China School of Communication & Control Engineering Jiangnan University Wuxi Jiangsu China Department information Engineering College of Henan Mechanical and Electrical Engineering Xinxiang Henan China

According to the unknown control direction strict feedback nonlinear systems, this paper introduced a design process for time-varying nonlinear adaptive controller by introducing the Nussbaum increasing and the dead area revision algorithm. Its stability is proved and analyzed, and its simulation is designed with the LMI MATLAB toolbox, the result shows that the controller has a good performance.

关键词： Artificial neural networks Nonlinear systems Algorithm design and analysis Adaptive control control systems Stability analysis Time varying systems

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Analysis of the Oil Film Effect in the Air Gap of an Electro-hydraulic Compound Pump

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IFAC Proceedings Volumes 2008年第2期41卷 5788-5795页

作者： Sheng-Ping Hsieh Thong-Shing Hwang Min-Tzung Hwang Graduate Institute of Electrical and Communication Engineering Feng Chia University Taichung Taiwan 407 R.O.C. Department of Automatic Control Engineering Feng Chia University Taichung Taiwan 407 R.O.C. Chung-Shan Institute of Science and Technology Taichung 40722 Taiwan R.O.C.

The electro-hydraulic compound pump is a new integrated product, in which the pump and motor are combined as one unit replacing the traditional connection with a shaft coupling. A piston pump embedded in the motor rotor is capable of actuating the pump without a rotating shaft coupling. There are a great deal of advantages in this design, such as reduced noise, decreased power loss, and easy installation. The piston pump body is placed in the motor rotor because of the compound pump design. The air gap between the rotor and motor stator is filled with hydraulic oil. The rotor is directly rotated in the hydraulic oil. The control of the pressure and flow is achieved by means of the mechanical adjustment at the pressure valve. This paper adopts the Maxwell EM software matched with the corresponding mathematical theory to examine and simulate the oil film effect in the air gap on the electrical performance of an electrohydraulic compound pump. The experimental results are given.

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Secret Distribution for Secure Fingerprint Verification

Secret Distribution for Secure Fingerprint Verification

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International Conference on Hybrid Information technology, ICHIT

作者： Hanna Choi Sungju Lee Daesung Moon Yongwha Chung Sungbum Pan Department of Computer and Information Science Korea University South Korea Biometrics Technology Research Team Electronics and Telecommunications Research Institute Daejeon South Korea Division of Information and Control Measurement Engineering Chosun University South Korea

Recently, in the smart-card based authentication system, there is an increasing trend of using fingerprint for the card holder verification, instead of passwords. However, the security of the fingerprint data is particularly important as the possible compromise of the data will be permanent. In this paper, we propose an approach for secure fingerprint verification by distributing both the secret and the computation based on the fuzzy vault (a cryptographic construct which has been proposed for crypto-biometric systems). That is, a user fingerprint template which is applied to the fuzzy vault is divided into two parts, and each part is stored into a smart-card and a server, respectively. At distributing the fingerprint template, we consider both the security level and the verification accuracy. Then, the geometric hashing technique is applied to solve the fingerprint alignment problem, and this computation is also distributed over the combination of the smart-card and the server in the form of the challenge-response. Finally, the polynomial can be reconstructed from the accumulated real points from both the smart-card and the server. Based on the experimental results, we confirm that our proposed approach can perform the fuzzy vault-based fingerprint verification more securely on a combination of a smart-card and a server without significant degradation of the verification accuracy.

关键词： Fingerprint recognition Servers Security Polynomials Feature extraction Fingers Accuracy

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Nonlinear Generalized Predictive control Based on Online SVR

Nonlinear Generalized Predictive Control Based on Online SVR

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International Symposium on Intelligent Information technology Application, IITA

作者： Du Zhiyong Wang Xianfang Henan Mech. & Electr. Eng. Coll. Xinxiang Henan Institute of Science and Technology Henan Xinxiang China School of Communication and Control Engineering Jiangnan University Jiangsu Wuxi China

Generalized predictive controllers (GPCs) have been successfully applied in process control during the last decade. The performance of unstable, non-minimum-phase, or linear processes with dead-time are improved, however, GPCs are limited when used to control real industrial process, because of the real processes is often onlinear. According to the difficult problem of building an accurate model for a nonlinear system, a new generalized predictive control (GPC) algorithm based on online support vector machines (OSVM) is designed. At first, some key parameters of model are identified on-line by OSVM, and then using generalized predictive control strategy to realize predictive control for the system. Through simulating of some experiments, the result shows that the design could predictive accurately, has a good stability and small the steady-state error.

关键词： Predictive control Predictive models Process control Electrical equipment industry Industrial control Buildings Nonlinear systems Prediction algorithms Support vector machines Algorithm design and analysis

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Takagi-Sugeno Fuzzy Coordinated control System with Original Plant Fuzzy State Observer for a Power Unit

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IFAC Proceedings Volumes 2008年第2期41卷 13205-13210页

作者： Xiu-chun Luan Wei-shi Han Ai-guang Young Yu Zhai Yu Jiang College of Nuclear Science and Technology Harbin Engineering University Harbin Heilongjiang Province 150001 China (Tel: +86-451-82838188 Department of Control Science and Engineering Harbin Institute of Technology Harbin Heilongjiang Province 150001 China College of Information Science and Technology Qingdao University of Science and Technology Qingdao Shandong Province 266061 China School of Economic Management Harbin University of Science and Technology Harbin Heilongjiang Province 150040 China Information And Communication Engineering College Harbin Engineering University Harbin Heilongjiang Province 150001 China

The Takagi-Sugeno (T-S) fuzzy multiple-variable integral control system with fuzzy state observer is designed for the coordinated control of multi-input-multi-output (MIMO) nonlinear boiler-turbine system whose operating points vary within a wide range. Linear models are first derived from the original nonlinear model on several operating points. Next the fuzzy multi-variable integral controller and the fuzzy state observer are designed via using the parallel distributed compensation (PDC) scheme, and the T-S fuzzy control system is constructed with the drum pressure as the premise variable. The problem that part of state variables can not be measured is successfully solved by introducing fuzzy state observer. Last the stability analysis is given by means of linear matrix inequality (LMI) approach, and the control system is guaranteed to be stable within a large range. The simulation results demonstrate that the control system works well over a wide region of operation.

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Design of A Power-, Delay-, and Emergency-Efficient Protocol of Ubiquitous Sensor Network Systems for Silver Town Applications

Design of A Power-, Delay-, and Emergency-Efficient Protocol...

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International Conference on Future Generation communication and Networking (FGCN)

作者： Seong Ho Choi Hyung-Kun Park Nam Ho Kim Sang-Hoon Kim YunSeop Yu Graduate School of Bio-Environment & Information Technology Hankyong National University Ansung Gyeonggi South Korea Information and Communication Engineering Department Korea University of Technology and Education Cheonan ChungNam South Korea Department of Information & Control Engineering and Electronic Technology Institute Hankyong National University Ansung Gyeonggi South Korea

ISBN: (纸本)9781424440085

Design of a power- and delay-efficient routing algorithm and emergency-efficient protocol of ubiquitous wireless sensor network systems for silver town applications is presented. For this protocol, the fixed nodes (without any limited resources) are established to one point which can communicate with one-hop to both the sink node and the mobile sensor nodes in the dark region (in which mobile sensor nodes can not communicate to the sink node). The fixed nodes are operated like the fixed cluster header. The simulated life time of the proposed routing algorithm is longer than those of LEACH and HEED and the simulated time delay of the proposed routing algorithm is faster than those of LEACH and HEED.

关键词： Sensor systems and applications Silver Cities and towns Clustering algorithms Algorithm design and analysis Routing protocols Wireless application protocol Ubiquitous computing Wireless sensor networks Delay effects

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A Blind Video Watermarking Algorithm Based on SVD in the DCT Domain

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AIP Conference Proceedings 2008年第1期1060卷 360-364页

作者： Hao‐Xian Wang Zhe‐Ming Lu Sheng‐He Sun aDepartment of Communication Engineering School of Information Engineering Harbin Institute of Technology at Weihai Weihai Shandong 264209 P. R. China cDepartment of Automatic Test and Control Harbin Institute of Technology Harbin Heilongjiang 150001 P. R. China bSchool of Information Science and Technology Sun Yat‐Sen University XinGangXi Road 135 Haizhu District Guangzhou 510275 P.R. China

In this paper, a new transform‐domain based video watermarking scheme is proposed. The method embeds and detects watermarks in the DCT domain based on Singular Value Decomposition (SVD). Extensive experimental results demonstrate that the proposed watermarking scheme is effective and robust against not only attacks such as frame dropping, frame averaging, and H.263 coding, but also attacks such as cropping, rotation, adding salt & pepper noise, sharpening and adding Gaussian noise.

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From insulator to quantum Hall liquid at low magnetic fields

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Physical Review B 2008年第11期78卷 113305-113305页

作者： Tsai-Yu Huang C.-T. Liang Gil-Ho Kim C. F. Huang Chao-Ping Huang Jyun-Ying Lin Hsi-Sheng Goan D. A. Ritchie Department of Physics National Taiwan University Taipei 106 Taiwan School of Information and Communication Engineering and SAINT Sungkyunkwan University Suwon 440-746 Korea National Measurement Laboratory Center for Measurement Standards Industrial Technology Research Institute Hsinchu 300 Taiwan Center for Theoretical Sciences National Taiwan University Taipei 106 Taiwan Cavendish Laboratory Madingley Road Cambridge CB3 OHE United Kingdom

We have performed low-temperature transport measurements on a GaAs two-dimensional electron system at low magnetic fields. Multiple temperature-independent points and accompanying oscillations are observed in the longitudinal resistivity between the low-field insulator and the quantum Hall (QH) liquid. Our results support the existence of an intermediate regime, where the amplitudes of magneto-oscillations can be well described by conventional Shubnikov–de Haas theory, between the low-field insulator and QH liquid.

关键词： .well described longitudinal resistivity low magnetic intermediate regime QH liquid magneto-oscillations QH state

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Two Level Parallel Grammatical Evolution

Two Level Parallel Grammatical Evolution

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Congress on Evolutionary Computation

作者： Pavel Osmera Ondrej Popelka Petr Pivonka Vysoke uceni technicke v Brne Brno MoravskoslezskÃ½ CZ Institute Department of informatics Mendel University of Agriculture and Foresty FBE Brno Czech Republic Department of Control and Instrumentation Brno University of Technology Faculty of Electrical Engineering and Communication Czech Republic

This paper describes a two level parallel grammatical evolution (TLPGE) that can evolve complete programs using a variable length linear genome to govern the mapping of a Backus Naur Form grammar definition. To increase the efficiency of grammatical evolution (GE) the influence of backward processing was tested and a second level with differential evolution was added. The significance of backward coding (BC) and the comparison with standard coding of GEs is presented. The new method is based on parallel grammatical evolution (PGE) with a backward processing algorithm, which is further extended with a differential evolution algorithm. Thus a two-level optimization method was formed in attempt to take advantage of the benefits of both original methods and avoid their difficulties. Both methods used are discussed and the architecture of their combination is described. Also application is discussed and results on a real-word application are described.

关键词： Evolutionary computation

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