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International Conference on Mechatronics and control (ICMC)

作者： Sheng Yan Huaicheng Yan Hongbo Shi Hao Zhang Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education East China University of Science and Technology Shanghai China Department of Control Theory and and Engineering Tongji University Shanghai China

ISBN: (纸本)9781479925391

This paper deals with H ∞ controller design problem for event-triggered networked control systems (NCSs), where the next task release time and finishing time are predicted based on the sampled states. A new model of NCSs that involves the network conditions, state and event-triggered communication strategy is proposed. Based on this model, some novel criteria for the asymptotic stability analysis and H ∞ state feedback controller design of the event-triggered NCSs with time-varying delay are established to guarantee a prescribed H ∞ disturbance rejection attenuation level. Finally, a numerical example is provided to illustrate the effectiveness of the proposed method.

关键词： Delays State feedback Networked control systems Actuators Stability analysis control design

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Separation model of Generalized Reference Curve Measurement for HPLC-DAD and it solution by multi-target Bare Bones Particle Swarm optimization

Separation model of Generalized Reference Curve Measurement ...

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IEEE International Conference on Bioinformatics and Biomedicine

作者： Lizhi Cui Josiah Poon Simon K. Poon Paul Kwan Junbin Gao Zhihao Ling School of Information Technologies The University of Sydney School of Science and Technology University of New England School of Computing and Mathematics Charles Sturt University Key Laboratory of Advanced Control and Optimization for Chemical Process Ministry of Education East China University of Science and Technology

ISBN: (纸本)9781479956708

In order to separate the chromatogram peaks and spectra from the High Performance Liquid Chromatography with Diode Array Detector (HPLC-DAD) data set, a separation model of Generalized Reference Curve Measurement and its solution by multi-target Bare Bones Particle Swarm optimization (GRCMmBBPSO) is proposed in this paper. Firstly, parameters are constructed which will generate Reference Curves (RCs) for chromatogram peaks. Secondly, the GRCM model is proposed to transform all these parameters to scalar values, which indicate the possibility for the HPLC-DAD data set containing chromatogram peaks similar to the RCs constructed by corresponding parameters. Then, the algorithm of mBBPSO is introduced to calculate the optimal parameters by minimizing the scalar values. Finally, the spectra are estimated. Through simulations and experiments, following conclusions are drawn: (1) the GRCMmBBPSO method can extract chromatogram peaks from the simulation data set without knowing the number of the compounds in advance even when a severe overlap and white noise exist;(2) the GRCMmBBPSO method can be applied to real HPLC-DAD data set.

关键词： HPLC-DAD separation Generalized Reference Curve Measurement model Multi-target Bare Bones PSO algorithm

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Forced responses of field modulated magnetic gear system

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ICIC Express Letters 2014年第7期8卷 2025-2030页

作者： Yuan, Xiaoming Zhang, Lijie Du, Bing Hao, Xiuhong Key Laboratory of Advanced Forging and Stamping Technology and Science Ministry of Education of China Yanshan University No. 438 Hebei Ave. Qinhuangdao 066004 China Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control Yanshan University No. 438 Hebei Ave. Qinhuangdao 066004 China School of Mechanical Engineering Yanshan University No. 438 Hebei Ave. Qinhuangdao 066004 China

Considering the torque ripples on the rotors, the dynamic model and the dynamic differential equations of field modulated magnetic gear (FMMG) system are founded. When the excitation frequency is close to a certain natural frequency of FMMG system, the expressions of the forced responses are deduced and the laws of the resonance responses are discussed. Results show that the amplitude of only a certain degree of freedom is always much bigger than others, because the electromagnetic coupling stiffnesses are weaker than the supporting stiffnesses. Forced responses of FMMG system can provide the theoretical basis for the parameter optimization during designing. © 2014 ISSN 1881-803X.

关键词： Dynamic models

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Rank deficiency gradient-based iterations for generalized coupled Sylvester matrix equations

Rank deficiency gradient-based iterations for generalized co...

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Chinese control Conference (CCC)

作者： Huamin Zhang Feng Ding Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Jiangnan University Wuxi P. R. China

In this paper, by constructing an objective function and using the gradient search, three gradient-based iterations are established for solving generalized coupled Sylvester matrix equations, when the related matrices are full-column rank, full-row rank or rank deficiency. It is proved that these three gradient-based iterative algorithms are convergent for any initial iterative values. By analyzing the spectral radius of the iterative matrices, we study the convergence properties and determine the optimal convergence factors of these iterations. We discuss the connection between the full-row rank iteration and the rank deficiency iteration. By using this connection, the computational efficiency increases greatly for a class of matrix equations. A numerical example is provided to illustrate the effectiveness of the proposed algorithms and testify the proposed conclusions in this paper.

关键词： Equations Convergence Iterative methods Mathematical model Linear matrix inequalities Optimized production technology Stability analysis

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LMI approach for stability in stochastic delayed neural systems

LMI approach for stability in stochastic delayed neural syst...

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International Conference on Natural Computation (ICNC)

作者： Xuyang Lou Yong Qiao B. T. Cui Q. Ye Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Jiangnan University Wuxi China College of Internet of Things Technology Wuxi Institute of Technology Wuxi China

In this paper, the asymptotic stability analysis problem is considered for a class of stochastic Cohen-Grossberg neural networks with time-varying delays. We aim to construct easily verifiable conditions for the asymptotic stability in the mean square of the delayed neural networks. Via a Lyapunov functional and the Halanay inequality technique, several stability criteria are derived. Two examples are provided to illustrate the effectiveness and applicability of the proposed criteria.

关键词： Asymptotic stability Delays Stability criteria Symmetric matrices Stochastic processes Neural networks

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A novel hybrid dynamic programming algorithm for a two-stage supply chain scheduling problem

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8th International Conference on Learning and Intelligent optimization, LION 2014

作者： Pei, Jun Liu, Xinbao Fan, Wenjuan Pardalos, Panos M. Liu, Lin School of Management Hefei University of Technology Hefei 230009 China Center for Applied Optimization Department of Industrial and Systems Engineering University of Florida Gainesville FL 32601 United States Key Laboratory of Process Optimization and Intelligent Decision-making of Ministry of Education Hefei 230009 China Department of Computer Science North Carolina State University Raleigh NC 27695-7534 United States

ISBN: (纸本)9783319095837

This study addresses a two-stage supply chain scheduling problem, where the jobs need to be processed on the manufacturer's serial batching machine and then transported by vehicles to the customer for further processing. The size and processing time of the jobs are varying due to the differences of types, and setup time is needed before processing one batch. For the problem with minimizing the makespan, we formalize it as a mixed integer programming model. In addition, the structural properties and lower bound of the problem are provided. Based on the analysis above, a novel hybrid dynamic programming algorithm, combining dynamic programming and heuristics, is proposed to solve the problem. Furthermore, its time complexity is also analyzed. By comparing the experimental results of our proposed algorithm with the heuristics B F F and L F F , we demonstrate that our proposed algorithm has better performance and can solve the problem in a reasonable time. © 2014 Springer International Publishing.

关键词： Dynamic programming

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Research of Information Organization Based on Folksonomy

Research of Information Organization Based on Folksonomy

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第五届复杂科学管理国际研讨会

作者： YU Bengong GU Jiawei School of Management Hefei University of Technology P.R.China China Key Laboratory of Process Optimization and Intelligent Decision Making of Ministry of Education Hef

This paper proposes a method which uses RDF to express resources, tags and users of Folksonomy and allows users to assign tags freely by achieving the storage and query of RDF *** provides a means for completely open and sharing of information between *** it is also applied in the manufacture enterprises' website that it widens the application range of *** method can not only improve the degree of users' participation, but also realize the efficient management of mass data and the quick query of Information.

关键词： Folksonomy RDF Information Organization Information Representation

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All-optical clock division using period-one oscillation of optically injected semiconductor laser

All-optical clock division using period-one oscillation of o...

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2014 International Conference on Logistics Engineering, Management and Computer Science, LEMCS 2014

作者： Niu, Shengxiao Zhang, Mingjiang Shi, Shuhui Chen, Chao Science and Technology Research and Development Center Handan Polytechnic College Handan China Key Laboratory of Advanced Transducers and Intelligent Control Systems Taiyuan University of Technology Ministry of Education Taiyuan Shanxi China Physics Department Handan Collage Handan China Software Department Handan China

ISBN: (纸本)9789462520103

Nonlinear dynamics of a semiconductor laser subjected external optical is applied to all-optical clock division. By properly adjusting the injection conditions, the divide-by-two clock division and the divide-by-three clock division are achieved base on the period-one oscillation. The divide-by-two clock division and divide-by-three clock division can be implemented within different input signal frequency ranges: from 11.0 GHz to 20.0 GHz and from 16.5 GHz to 20.0 GHz, respectively, by adjusting the average power of the injection optical pulses. In addition, our experiment shows that the phase noise of the divided clock signals is below -100 dBc/Hz. The division process can be controlled by the power and the wavelength detuning of the injected optical pulses. A large locking range of 1.0GHz is measured in second clock division, and 1.8GHz is measured in third clock division. © 2014. The authors - Published by Atlantis Press.

关键词： Nonlinear optics

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Sliding mode control for T-S fuzzy stochastic systems with Markovian switching

Sliding mode control for T-S fuzzy stochastic systems with M...

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第三十三届中国控制会议

作者： Bei Chen Yugang Niu Tinggang Jia Central Academe Shanghai Electric Group Co.Ltd. Key Laboratory of Advanced Control and Optimization for Chemical Process(East China University of Science and Technology) Ministry of Education Automation Division Shanghai Electric Group Co.Ltd.

This paper is concerned with the sliding mode control(SMC)problem for a class of T-S fuzzy stochastic systems with Markovian *** purpose of the problem addressed is to integrate the SMC method such that,for all admissible parameter uncertainty,external disturbance and state-dependent noise,the closed-loop system is globally asymptotically ***,it is not required that each nominal local system model shares the same input channel,which is usually assumed in some existing *** is shown that both the reachability of sliding surfaces and the stability of sliding mode dynamics can be ensured.

关键词： Markovian jumping systems,State-dependent noise,T-S fuzzy model,Sliding mode control

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Weld seam detection and feature extraction based on laser vision

Weld seam detection and feature extraction based on laser vi...

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Chinese control Conference (CCC)

作者： Xiuping Wang Ruilin Bai Ziteng Liu Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Information and Control Experiment Teaching Center Jiangnan University Wuxi Jiangsu CN Wuxi Professional College of Science and Technology Wuxi China

This paper presents an algorithm for real time weld seam detection and feature extraction of butt weld, which is based on laser vision sensor installed on the end hand of welding robot. The algorithm preprocesses the weld seam images captured by laser vision sensor as first step and then detects laser stripe edges thus obtains the center of laser stripe. Then a two-step method is used to extract the initial value of center point of weld seam. Finally the weld region is separated from the laser stripe center line using iterative search method, then two edge points and accurate center point of weld region together with the width of weld seam can be calculated. Experiments have shown that the algorithm proposed in this paper has good stability and accuracy, and it can meet the real-time requirements.

关键词： Welding Feature extraction Robot sensing systems Surface emitting lasers Image edge detection

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