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2011 China control and Decision Conference(2011中国控制与决策会议 CCDC)

作者： Tao Li Ting Wang Shumin Fei School of Electronic Engineering and Automation Henan Polytechnic University Jiaozuo 454000 Henan Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of EducationS Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education

This paper deals with global synchronization in arrays of coupled delayed Lur’e systems with nonlinear couplings, in which the interval variable delay is treated. Together with Krasovskii-Lyapunov functional method and Kronecker product technique, two novel synchronization criteria are presented in terms of linear matrix inequalities (LMIs) based on generalized convex combination, in which the conditions are heavily dependent on upper and lower bounds of time-delay and delay derivative. Through employing LMI in Matlab Toolbox and adjusting some matrix parameters in the derived results, we can realize the designing and applications of the coupled systems. The effectiveness of the proposed methods can be demonstrated by one numerical example with simulations.

关键词： Lur'e systems global synchronization interval time-varying delay nonlinear coupling LMI approach

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Forecasting product design time based on Gaussian margin regression

Forecasting product design time based on Gaussian margin reg...

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IEEE 2011 10th International Conference on Electronic measurement and Instruments, ICEMI 2011

作者： Shang, Zhigen Yan, Hongsen School of Automation Southeast University Nanjing 210096 China Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Southeast University Nanjing 210096 China Department of Automation Yancheng Institute of Technology Yancheng 224003 China

ISBN: (纸本)9781424481590

In order to obtain a forecast model for product design time from a small data set, Gaussian Margin Regression (GMR) is presented on the basis of combining Gaussian Margin Machines and kernel based regression. Gaussian Margin Regression maintains a Gaussian distribution over weight vectors for kernel based regression. The algorithm is applied to seeking the least information distribution that will make actual value be included in the confidential interval with high probability, and embedded genetic algorithm is presented for choosing its relevant parameters. The results of application in injection mold designs reveal that the time forecast model based on GMR is of feasibility and validity. © 2011 IEEE.

关键词： Product design

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Design of communication interface for M2M-based positioning and monitoring system

Design of communication interface for M2M-based positioning ...

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International Conference on Electronics, Communications and control (ICECC)

作者： Yanlan Yang Hua Ye Shumin Fei Key Laboratory of Measurement and Control of Complex Systems of Engineering of Ministry of Education Southeast University Nanjing China

The idea of M2M platform proposes a completely new system architecture for positioning and monitoring applications with wider coverage and higher communication efficiency. With the comparison of the original communication mode to the M2M- based one, the communication interface is changed in the new communication solution for the application side accessing to the platform, which is finally designed into two parts according to the interface specification for M2M platform. The one is the local web service which provides methods for the platform to transmit data from the terminal side, and the other is the communication service software developed based on the SDK package from the M2M platform. This interface has been implemented into an actual application for the construction machinery monitoring, and the communication work between the terminals and the control center through M2M platform performs efficiently and reliably.

关键词： Monitoring Web services Data communication Global Positioning System Ground penetrating radar Protocols Reliability

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Exploiting mobility for data collection in Wireless Sensor Networks with delay reduction

Exploiting mobility for data collection in Wireless Sensor N...

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Chinese control Conference (CCC)

作者： Chun Zhang Shumin Fei Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Southeast University Nanjing 210096 China

To design an energy efficient data collection scheme instead of multi-hop data relay is essential for Wireless Sensor Networks. To many proposed data gathering approaches, the long data delay is the main problem. In this paper, mobile collectors are introduced in a sensor network and a data collection mechanism is proposed. To organize sensors into three-level clusters, an energy efficient clustering algorithm is proposed. The collection strategy is based on the hierarchical structure and consists of two rules to schedule mobile collectors reasonably. Simulation results demonstrate that the data collection scheme effectively reduces the energy consumption and decrease the data delay.

关键词： Delay Wireless sensor networks Mobile communication Clustering algorithms System-on-a-chip Mobile computing Energy consumption

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Finite-time attitude stabilization for a rigid spacecraft using homogeneous method

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IFAC Proceedings Volumes 2011年第1期44卷 2620-2625页

作者： Haibo Du Shihua Li School of Automation Southeast University Nanjing 210096 P.R.China Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education

Abstract This paper investigates the finite-time attitude stabilization problem for a rigid spacecraft with an unknown inertia matrix. By using homogeneous approach, a local continuous finite-time controller is first designed such that the attitude can be stabilized to the equilibrium in finite time. Then, to solve global attitude stabilization problem, a modified finite-time controller is proposed. Rigorous proof shows that the attitude can be stabilized to the equilibrium in finite time. Finally, a simulation example is given to demonstrate the efficiency of the proposed method.

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Modified Internal Model control of PMSM Speed-regulation System *

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IFAC Proceedings Volumes 2011年第1期44卷 11550-11555页

作者： Hao Gu Shihua Li School of Automation Southeast University Nanjing 210096 P.R.China Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education

Abstract In this paper, the speed-regulation problem for permanent magnet synchronous motor (PMSM) system under vector control framework is studied. For the speed loop, a standard internal model controller is first designed based on a first-order model of PMSM by analyzing the relationship between reference quadrature axis current and speed. Considering the disadvantages that the standard IMC method is sensitive to control input saturation and provides a poor load disturbance rejection performance, a modified IMC is introduced where a feedback control term is added to form a composite control structure. For the two current-loops, PI algorithms are employed respectively. Simulation and experimental results show the effectiveness of the proposed control method.

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Semantic service composition mechanism for component-based robotic system

Semantic service composition mechanism for component-based r...

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Annual Conference of Industrial Electronics Society

作者： Kun Qian Xudong Ma Xianzhong Dai Xin Jin Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education School of Automation Southeast University Nanjing China

Automatic service composition is a key issue of cooperative resource utilization in component-based networked robot system. In this paper, a semantic-based automatic service composition method is proposed. The semantic representation and composition of service is achieved by semantic descriptions of service functions and formulating a set of I/O parameters matching rules. Based on this, a bidirectional breadth-first traversal search algorithm inspired by the maze problem is proposed. As a result, the proposed method is capable of automatically generating plans to compose the functions according to the task requirement. Experimental results validate the effectiveness and the flexibility of the proposed method.

关键词： Cameras Software Robot kinematics Semantics Robot vision systems

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Improved Particle Filter for Object Tracking

Improved Particle Filter for Object Tracking

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2011 China control and Decision Conference(2011中国控制与决策会议 CCDC)

作者： Tao Zhang Shu-min Fei College of Automation Electronic Engineering Qingdao University of Sciences and TechnologyQingdao Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of EducationIn

Robust real-time tracking of non-rigid objects is a challenging task. Color is a powerful feature for tracking deformable objects in image sequences with complex backgrounds. Color distribution is applied, as it is robust to partial occlusion, is rotation and scale invariant and computationally efficient. Particle filter has been proven very successful for non-linear and non-Gaussian estimation tracking problems. The article presents the integration of color distributions into particle filtering. A target is tracked with a particle filter by comparing its histogram with the histograms of the sample positions using the Bhattacharyya distance. Additionally, to solve the sample impoverishment (all particles collapse to a single point within a few iterations) in the particle-filter algorithm, a new resampling algorithm is proposed to tackle sample impoverishment. The performance of the proposed filter is evaluated qualitatively on various real-world video sequences. The experimental results show that the improved color-based particle filter algorithm can reduce sample impoverishment effectively and track the moving object very well.

关键词： Particle filter Object Tracking Robust Tracking

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Stability and L2-L∞ Analysis for A Class of Interconnected systems

Stability and L2-L∞ Analysis for A Class of Interconnected ...

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2011 China control and Decision Conference(2011中国控制与决策会议 CCDC)

作者： Shumin Fei Yongmin Li Yuming Chu Zhenjiang Zhao Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education School of Science Huzhou Teachers College Huzhou 313000 Zhejiang China

This paper deals with the problem of stochastically stability and L2-L∞ performance analysis for a class of interconnected Markovian jump ltering error system with constant time delays. By using mode-dependent decentralized lters and constructing mode-dependent centralized Lyapunov functional together with Jensen’s inequality, the stability conditions for the ltering error system are presented which also ensures the L2-L∞ performance. The obtained stability conditions are delay-dependent which may be less conserve than that delay independent one, especially when time-delay are very small. Furthermore, these conditions are expressed in terms of matrix inequalities (LMIs), which may provide the convenience for the design of the concerned lters through linear matrix inequality technique.

关键词： Interconnected Markovian jump systems Decentralized lters Stochastic stability L2-L∞ performance Time delays.

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Design of partitioned table for VLDB in the vehicle monitoring system

Design of partitioned table for VLDB in the vehicle monitori...

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2nd International Conference on Multimedia Technology, ICMT 2011

作者： Yang, Yanlan Ye, Hua Fei, Shumin School of Automation Southeast University Nanjing China Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Southeast University Nanjing China

ISBN: (纸本)9781612847740

As the number of vehicles in the monitoring system increases, the size of the table for storing their past data becomes very large, which brings performance troubles occurred in the systems with VLDB. To improve the data-access efficiency and keep the database stability, the original table is proposed to be partitioned. According to the functional requirements for database from the vehicle monitoring system, the range partition is suggested, with twelve partitions for one year's historical data and each partition corresponding to a separate month. Then the partitioned table is created after finishing the definitions of the partitioning function and the partitioning schema, where the former gives a rule for partitioning and the latter specifies the storage places of partitions to different file groups. Because the data in the partitioned table is separated into several file groups, the data-access is capable of parallel processing and keeps a higher efficiency. Tests show that the partitioned table works in improving the database performance and the query time is greatly reduced compared to that cost in the original table. © 2011 IEEE.

关键词： Database systems

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