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2010 3rd International Congress on Image and Signal Processing, CISP 2010

作者： Li, Youfeng Xie, Lei Su, Hongye Chu, Jian State Key Lab. of Industrial Control Technology Institute of Cyber-Systems and Control Zhejiang University Hangzhou 310027 China

ISBN: (纸本)9781424465149

Recursive subspace identification methods have been an active area of research in recent years. In this paper, a recursive version of a closed-loop subspace method is proposed for on-line system modeling. The algorithm is based on the predictor Markov parameters and is prone to a very simple and computationally attractive implementation. A numerical example shows the effectiveness of the proposed algorithm on the problem of closed-loop recursive identification. ©2010 IEEE.

关键词： Markov processes

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A new algorithm for mining global frequent itemsets in a stream

A new algorithm for mining global frequent itemsets in a str...

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6th International Conference on Fuzzy systems and Knowledge Discovery, FSKD 2009

作者： Guo, Lichao Su, Hongye Qu, Yu State Key Lab. of Industrial Control Technology Institute of Cyber-Systems and Control Zhejiang University Hangzhou 310027 China

ISBN: (纸本)9780769537351

To find global frequent itemsets in a multiple, continuous, rapid and time-varying data stream, a fast, incremental, real-time, and little-memory-cost algorithm should be used. Based on the max-frequency window model, a BHS summary structure and a novel algorithm called GGFI-MFW are proposed. It merely updates the summaries for subsets of the data new arrived and could directly generate the max-frequency for a given itemset without scanning the whole summary. Experiment results indicate that the proposed algorithm could efficiently find global frequent itemsets over a data stream with a small memory and perform overwhelming superiority for a large number of distinct items. © 2009 IEEE.

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Diffusion Distributed Dynamic Filter with Adaptive Matrix Weights in Sensor Network 35

Diffusion Distributed Dynamic Filter with Adaptive Matrix We...

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第35届中国控制会议

作者： HE Xingkang XUE Wenchao FANG Haitao Key Lab.of Systems and Control Academy of Mathematics and Systems ScienceChinese Academy of Sciences School of Mathematical Sciences University of Chinese Academy of Sciences

ISBN: (纸本)9781509009107

In this paper,the distributed dynamic estimation problem with the diffusion strategy in the sensor network is *** propose a diffusion distributed dynamic filter to minimize the mean square error matrix for each *** on the prediction error covariance matrices,a design principle of adaptive matrix weights is *** stability of the distributed filter is analyzed and compared with the local centralized Kalman filter(LCKF).In the numerical simulation,the proposed algorithm is compared with the centralized Kalman filter(CKF),the LCKF and the collaborative scalar-gain filter(SCGF),which rectifies the stability and the effectiveness of our algorithm.

关键词： Diffusion Strategy Distributed Filter Kalman Filter Sensor Network Adaptive Matrix Weight

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Position and Attitude Tracking control for a Quadrotor UAV via Double-loop controller 29

Position and Attitude Tracking Control for a Quadrotor UAV v...

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第29届中国控制与决策会议

作者： Hairong Yin Qingling Wang Changyin Sun School of Automation Southeast University Key Lab of Measurement and Control of Complex Systems of Engineering Ministry of EducationSoutheast University

ISBN: (纸本)9781509046584

To deal with the position and attitude tracking control problem of a quadrotor unmanned aerial vehicle(UAV),the proportional-derivative(PD) and integral sliding mode techniques are adapted to design a double-loop controller in this ***,the system model of quadrotor is established according to the Lagrange ***,a PD control method is put forward in the outer-loop to achieve the position ***,an integral sliding mode control method is adapted in the inner-loop to ensure the quadrotor track the desired attitude angles in the presence of external ***,a double-loop controller is ***,simulation results are presented to verify the effectiveness and robustness of the proposed control laws.

关键词： quadrotor PD control integral sliding mode control double-loop controller tracking

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Flexible unbalanced control with peak current limitation for virtual synchronous generator under voltage sags

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Journal of Modern Power systems and Clean Energy 2018年第1期6卷 61-72页

作者： Tianwen ZHENG Laijun CHEN Yan GUO Shengwei MEI State Key Laboratory of Control and Simulation of Power Systems and Generation Equipments Department of Electrical Engineering Tsinghua University Qinghai Key Lab of Efficient Utilization of Clean Energy New Energy Photovoltaic Industry Research Center Qinghai University

Virtual synchronous generator(VSG)is gridfriendly for integrating distributed generations(DGs)since it can emulate the operation mechanism of traditional synchronous generator(SG).However,the traditional VSG control strategy,which is mainly suitable for balanced voltage conditions,may lead to power oscillations,current unbalance and even overcurrent under unbalanced voltage *** overcome this difficulty,a flexible unbalanced control with peak current limitation for VSG under unbalanced operating conditions is *** on the basic VSG control algorithm,the control strategy integrates two novel control modules,which are current reference generator(CRG)and power reference generator(PRG).The proposed control strategy can flexibly meet different operation demands,which includes current balancing,constant active or reactive *** the injected currents are kept within safety values for a better utilization of the VSG power ***,the experimental platform is *** results demonstrate the validness and effectiveness of the proposed control strategy.

关键词： Virtual synchronous generator Unbalanced control Current reference generator Power reference generator Voltage sags

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Fully distributed consensus of second-order multi-agent systems using adaptive event-based control

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Science China(Information Sciences) 2018年第12期61卷 199-201页

作者： Wei ZHU Qianghui ZHOU DANDan WANG Gang FENG Key Lab of Intelligent Analysis and Decision on Complex Systems Chongqing University of Posts and Telecommunications Key Lab of Industrial Internet of Things & Networked Control Ministry of EducationChongqing University of Posts and Telecommunications Department of Mechanical and Biomedical Engineering City University of Hong Kong

Dear editor,In recent years, the distributed consensus of multiagent systems (MASs) has attracted compelling attention because of its potential applications in many fields such as sensor networks, unmanned aerial vehicle (UAV) formation flying, and multiple signals tracking. The central task in the distributed consensus of MASs is to design distributed control protocols to achieve the consensus

关键词： In MAS Fully distributed consensus of second-order multi-agent systems using adaptive event-based control

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Type-2 fuzzy multi-intersection traffic signal control with differential evolution optimization

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EXPERT systems WITH APPLICATIONS 2014年第16期41卷 7338-7349页

作者： Bi, Yunrui Srinivasan, Dipti Lu, Xiaobo Sun, Zhe Zeng, Weili Southeast Univ Sch Automat Key Lab Measurement & Control CSE Minist Educ Nanjing Jiangsu Peoples R China Natl Univ Singapore Dept Elect & Comp Engn Singapore 117548 Singapore Zhejiang Univ Inst Cyber Systems & Control Natl Lab Ind Control Technol Hangzhou 310003 Zhejiang Peoples R China

This paper proposes a multi-agent type-2 fuzzy logic control (FLC) method optimized by differential evolution (DE) for multi-intersection traffic signal control. Type-2 fuzzy sets can deal with models' uncertainties efficiently because of its three-dimensional membership functions, but selecting suitable parameters of membership functions and rule base is not easy. DE is adopted to decide the parameters in the type-2 fuzzy system, as it is easy to understand, simple to implement and possesses low space complexity. In order to avoid the computational complexity, the expert rule base and the parameters of membership functions (MF) are optimized by turns. An eleven-intersection traffic network is studied in which each intersection is governed by the proposed controller. A secondary layer controller is set in every intersection to select the proper phase sequence. Furthermore, the communication among the adjacent intersections is implemented using multi-agent system. Simulation experiments are designed to compare communicative type-2 FLC optimized by DE with type-1 FLC, fixed-time signal control, etc. Experimental results indicate that our proposed method can enhance the vehicular throughput rate and reduce delay, queue length and parking rate efficiently. (C) 2014 Elsevier Ltd. All rights reserved.

关键词： Type-2 fuzzy logic control Differential evolution (DE) Multi-agent system Traffic signal control Phase sequence

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Data-driven consensus control of fully distributed event-triggered multi-agent systems

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Science China(Information Sciences) 2023年第5期66卷 147-161页

作者： Yifei LI Xin WANG Jian SUN Gang WANG Jie CHEN School of Automation Beijing Institute of Technology The State Key Lab of Autonomous Intelligent Unmanned Systems Beijing Institute of Technology Beijing Institute of Technology Chongqing Innovation Center Department of Control Science and Engineering Tongji University

This study investigates the consensus control issue in discrete-time linear multi-agent systems(MASs) using data-driven control under undirected communication networks. To alleviate the communication burden, an adaptive event-triggered control strategy involving only local information is proposed and a model-based stability condition is derived that guarantees the asymptotic consensus of MASs. Furthermore,a data-based consensus condition for unknown MASs is established by combining a data-based system representation with the model-based stability condition, using only pre-collected noisy input-state data instead of the accurate system information a priori. Specifically, both model-based and data-driven event-triggered controllers can be utilized without requiring any global information. The validity and correctness of the controllers and associated theoretical results are demonstrated via numerical simulations.

关键词： distributed control event-triggered control data-driven control discrete-time MASs

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Distributed Online Optimization of High-Order Multi-Agent systems 35

Distributed Online Optimization of High-Order Multi-Agent Sy...

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第35届中国控制会议

作者： DENG Zhenhua ZHANG Yangqiong HONG Yiguang Key Lab of Systems and Control Academy of Mathematics and Systems ScienceChinese Academy of Sciences Department of Electronic and Computer Engineering the Hong Kong University of Science and Technology

ISBN: (纸本)9781509009107

Distributed online optimization problem for continuous-time multi-agent systems with the form of high-order integrator is studied in this *** order to minimize the regret,a distributed online optimization algorithm is developed via consensus idea,PI control idea and gradient ***,we show that under the proposed algorithm,the regret bound approaches a constant when the operating time tends to infinity.

关键词： Distributed online optimization multi-agent systems regret analysis high-order integrator

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Visual Pencil: Design of Portable Human-Computer Interaction Based on 2D Visual Tracking 17

Visual Pencil: Design of Portable Human-Computer Interaction...

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17th IEEE International Conference on Mechatronics and Automation, ICMA 2020

作者： Tong, Ru Wang, Tianzhu Yu, Junzhi Institute of Automation Cas State Key Lab Management and Control for Complex Systems Beijing100190 China

ISBN: (纸本)9781728164151

Convenient and efficient human-computer interaction has always been the goal pursued by researchers. In this paper, we present a vision-based handwriting interaction device for non-touch screens called Visual Pencil. Unlike the conventional interactive method that captures the user's gestures using a motionless visual sensor, Visual Pencil directly mounts the visual sensor in the device. More specifically, the visual data are processed by the feature detection algorithm, and the movement of the pen tip in a 2D plane is calculated, so as to control the cursor and achieve the purpose of interaction. We further define performance indicators for evaluating the design and select more reasonable parameters through specific experiments to achieve the best interaction performance. The experiments verify that the proposed design is able to fulfill the desired operations. The significance of this design lies in that it integrates the functions of the mouse and smart pen, thus removing the requirement of more auxiliary equipment. This work sheds light on the interaction with non-touch screen computers. © 2020 IEEE.

关键词： Human computer interaction

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