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IEEE International Conference on Communications in China (ICCC)

作者： Qingling Wang Changyin Sun School of Automation Southeast University Nanjing China Ministry of Education Key Laboratory of Measurement and Control of Complex Systems of Engineering Nanjing China

ISBN: (纸本)9781509002443

This paper considers the consensus problem synthesized with transient performance for a class of linear systems subject to input saturation. Two different settings, the undirected communication topology and a directed communication topologies, are systematically considered. To improve the transient performance of the resulting consensus, a saturated nonlinear consensus algorithm is proposed to solve this problem. Consensus tracking control for a class of linear systems is proved to be achieved under the general undirected and a directed graphs provided that their generated graphs contain a directed spanning tree. Numerical examples are utilized to illustrate the effectiveness of the theoretical results.

关键词： Transient analysis Linear systems control systems Topology Algorithm design and analysis Heuristic algorithms control theory

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Optimal Stochastic Production Scheduling for Uncertain Re-entrant Assembly Workshops

Optimal Stochastic Production Scheduling for Uncertain Re-en...

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2015 4th International Conference on Computer, Mechatronics, control and Electronic engineering (ICCMCEE 2015)

作者： Nanyun Jiang Hongsen Yan School of Automation and the MOE Key Laboratory of Measurement and Control of Complex Systems of Engineering Southeast University Department of Economics and Management Nanjing Technology University

ISBN: (纸本)9781510813465

An optimal stochastic problem of production scheduling for uncertain re-entrant assembly workshops(URAWs) was studied, in which the assembly process is repeated on the basis of quality inspection result and the number of repeats is uncertain. According to analysis of URAWs, a stochastic expected value model of production scheduling was built up. In order to solve the model conveniently, the model was then converted into a deterministic model. A genetic simulated annealing algorithm based on feasible region(FR-GSAA) was designed to solve this model. Finally the result of simulation examples indicates that the model and the algorithm are feasible and practical.

关键词： Uncertain Re-entrant Production Scheduling Genetic Simulated Annealing Algorithm

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EXPONENTIAL STABILITY OF LINEAR DISTRIBUTED PARAMETER SWITCHED systems WITH TIME-DELAY

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Journal of systems Science & complexity 2014年第2期27卷 263-275页

作者： BAO Leping FEI Shumin YU Lei The School of Automation and Key Laboratory of Measurement and Control of Complex Systems of Engineer-ing Southeast University The School of Mechanical and Electric Engineering Soochow University

In this paper, the exponential stability analysis for ODE switched systems with time delay is extended to distributed parameter switched systems(DPSS) in Hilbert space. For a given family of exponential stable subsystems, this paper focuses on finding conditions to guarantee the overall DPSS' exponential stability. Based on semigroup theory, by applying piecewise Lyapunov-Krasovskii functionals method incorporated average dwell time approach, sufficient conditions for exponential stability are derived. These conditions are given in the form of linear operator inequalities(LOIs)where the decision variables are operators in Hilbert space, and the stability properties depend on switching rule. Being applied to heat switched propagation equations, these LOIs are reduced to standard Linear Matrix Inequalities(LMIs). Finally, a numerical example is given to illustrate the effectiveness of the proposed result.

关键词： Exponential stability LMIs PDEs on abstract space switched systems.

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Global finite-time stabilization of second-order systems subject to mismatched disturbances with application to consensus

Global finite-time stabilization of second-order systems sub...

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第三十四届中国控制会议

作者： Xiangyu Wang Shihua Li Haibo Du School of Automation Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education School of Electrical Engineering and Automation Hefei University of Technology

ISBN: (纸本)9781467374439

In this paper, the finite-time stabilization problem for second-order systems subject to mismatched disturbances is studied. By integrating the homogeneous control technique and the finite-time disturbance observer together, a kind of feedforwardfeedback composite controllers are proposed. These controllers globally finite-time stabilize the disturbed systems. Moveover,the composite control method is also used to solve the finite-time consensus problem of leaderless second-order systems with mismatched disturbances. Simulations demonstrate the effectiveness of the proposed control algorithms.

关键词： Mismatched disturbances,finite-time control,homogeneous theory,finite-time disturbance observer,consensus

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Robust Second-Order Tracking of Multi-agent systems without Velocity measurements and with Input Saturation

Robust Second-Order Tracking of Multi-agent Systems without ...

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第三十四届中国控制会议

作者： Qingling Wang Changyin Sun Jian Hou Yingjiang Zhou School of Automation Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education National Key Laboratory of Science and Technology on Aerospace Intelligence Control Beijing Aerosapce Automatic Control Institute Nanjing University of Posts and Telecommunications

ISBN: (纸本)9781467374439

This paper investigates the robust second-order tracking problem of multi-agent systems without velocity measurements and with input saturation on detailed balanced directed communication topologies, where agents' dynamics are subject to uncertain and external disturbances. We first construct one distributed bounded controller for multi-agent systems without uncertain and external disturbances. Then, combined with the controller, one modifying uncertainty and disturbance estimator(UDE)is proposed to approximate the situation where neither the velocity measurements nor their asymptotic estimation is *** is shown that the synchronization errors are bounded and their ultimate bounds could be arbitrarily small by choosing some parameters appropriately. Simulation results are presented to show the effectiveness of the controllers.

关键词： Robust second-order consensus,without velocity measurements,uncertainty and disturbance estimator,input saturation.

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A DE based PID controller for two dimensional overhead crane

A DE based PID controller for two dimensional overhead crane

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第三十四届中国控制会议

作者： Zhe Sun Ning Wang Yunrui Bi Jinhui Zhao National Laboratory of Industrial Control Technology Institute of Cyber-Systems and ControlZhejiang University Key Laboratory of Measurement and Control of CSE Ministry of EducationSchool of AutomationSoutheast University College of Mechanical and Electrical Engineering China Jiliang University

ISBN: (纸本)9781467374439

In order to damp the load oscillation, a DE optimal PID controller is designed for overhead crane control *** by bee colony foraging mechanism, a neighborhood search operation is adopted for differential evolution(DE) algorithm to improve the search efficiency. This improved DE algorithm is employed to adjust PID controller parameters off-line. Through simulation and comparison under different operation conditions, the DE based PID controller exhibits the better performance in overhead crane anti-swing and position control.

关键词： PID control,DE algorithm,Parameter optimization,Overhead crane

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Coordinated Adaptive control for Coordinated Path-following Surface Vessels with a Time-invariant Orbital Velocity

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IEEE/CAA Journal of Automatica Sinica 2014年第4期1卷 337-346页

作者： Yangyang Chen Ping Wei Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of EducationSoutheast University the Department of Electronic Information Engineering Anhui Business College

This article considers the problem of directing a family of fully actuated surface vessels to cooperatively follow a set of convex and closed orbits with a time-invariant reference orbital velocity and maintain attitude synchronization. A consensusbased adaptive control law under a bidirectional communication topology is proposed to estimate the reference orbital velocity so that the restriction that every vessel in the family must have access to the reference in the previous literature can be *** assumption of nonzero total linear speed of each vessel is removed by the use of potential function. Simulation results demonstrate the effectiveness of the proposed approach.

关键词： Coordinated adaptive control coordinated path-following attitude synchronization fully actuated surface vessels

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Research on Panoramic Vision System of Mobile Robot

Research on Panoramic Vision System of Mobile Robot

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第27届中国控制与决策会议

作者： Qiaobing Yao Hualong Yu Wankou Yang Changyin Sun School of Autmation Southeast University Key Lab of Measurement and Control of Complex Systems of Engineering Ministry of EducationSoutheast University Key Laboratory of Child Development and Learning Science of Ministry of Education Southeast University

ISBN: (纸本)9781479970186

This paper presents an imaging method for 360-degree panoramic view based on four wide angle *** order to complete the image mosaic,all the parameters such as focal length,principal point and distortion coefficients,etc are calibrated by our proposed calibration ***,our approach does not adopt the scheme which stitching all the images to the surrounding view after distortion *** proposed method directly calculates the mapping relationship between the wide-angle lens images and cylindrical projection images to generate lookup tables which can greatly simplifies the computation and reduces the loss of information in each ***,panoramic image is composed by image registration and image *** results show that this method is valid.

关键词： Image mosaic Camera calibration Cylindrical projection LUTs

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A Pedestrian Detection Method Based on MBLBP Features and Intersection Kernel SVM

A Pedestrian Detection Method Based on MBLBP Features and In...

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2015年中国智能自动化学术会议

作者： Xuejie Nian Ke Xie Wankou Yang Changyin Sun School of Automation Southeast University Key Lab of Measurement and Control of Complex Systems of Engineering Ministry of Education Southeast University Key Laboratory of Child Development and Learning Science of Ministry of Education Southeast University

Pedestrian detection is a hot research topic in pattern recognition and computer vision. We combine MBBP（Multiscale Block Local Binary Patterns）feature and Histogram Intersection Kernel SVM and apply them to pedestrian detection. MBBP features, which make up for the lack of LBP（Local Binary Patterns） features in robustness, is a kind of effective texture description *** Intersection Kernel Support Vector Machine has the advantage of fast classification and high accuracy in object recognition. It can be used for further enhancing the system's real-time performance. The experiments show that the proposed approach has higher precision than the classical algorithm HOG+Linear SVM and the HOGBP Features Fusion tested on the established benchmarking datasets—INRIA.

关键词： Pedestrian detection MBLBP features HIKSVM

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K-Means Clustering Based on Density for Scene Image Classification

K-Means Clustering Based on Density for Scene Image Classifi...

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2015年中国智能自动化学术会议

作者： Ke Xie Jin Wu Wankou Yang Changyin Sun School of Autmation Southeast University Key Lab of Measurement and Control of Complex Systems of Engineering Ministry of Education Southeast University Key Laboratory of Child Development and Learning Science of Ministry of Education Southeast University

K-means clustering has been extremely popular in scene image classification. However, due to the random selection of initial cluster centers, the algorithm cannot always provide the most optimal results. In this paper, we develop a density-based k-means clustering. First, we calculate the density and distance for each feature vector. Then choose those features with high density and large distance as initial cluster centers. The remaining steps are the same with k-means. In order to evaluate our proposed algorithm, we have conducted several experiments on twoscene image datasets: Fifteen Scene Categories dataset and UIUC Sports Event dataset. The results show that our proposed method has good repeatability. Compared with the traditional k-means clustering, it can achieve higher classification accuracy when applied in multiclass scene image classification.

关键词： K-means Density Scene image classification

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