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Structured Controller Design for Interconnected Systems via Nonlinear Programming

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IEEE/CAA Journal of Automatica Sinica 2022年第7期9卷 1331-1334页

作者： Yanpeng Guan Junpeng Du xinchun jia School of Automation and Software Engineering Shanxi UniversityTaiyuan 030006China School of Control Science and Engineering Dalian University of TechnologyDalian 116024China IEEE

Dear Editor,This letter deals with the structural controller design problem of interconnected systems with unknown feedback ***,under a cardinality constraint on the directed communication links among sub-controllers,a distributed controller’s feedback gain and feedback topology are incorporated in a unified co-design ***,the cardinality constraint introduced in the distributed control is represented by a binary integer *** deal with the complementary constraint,a nonlinear programming(NLP)is proposed to relax the binary integer ***,incorporating the NLP into the standard distributed event-triggered control method,an algorithm is developed for interconnected systems to simultaneously design the feedback topology and controller *** interconnected system is composed of several coupling subsystems,which usually coordinate with each other to accomplish a common task.

关键词： constraint integer topology

A new stabilizing method for linear aperiodic sampled-data systems with time delay inputs and uncertainties

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Science China(Information Sciences) 2020年第4期63卷 224-226页

作者： Shuangshuang GAO Xiu YOU xinchun jia Weiwei MA School of Mathematical Sciences Shanxi University

Dear editor,With the rapid development of communication,control, and computer technologies, networked control systems (NCSs) have been widely used in various fields owing to its advantages of sharing information resources, reducing system wiring,and increasing the flexibility and reliability of systems [1–3]. In NCSs, sampling-data systems com-

关键词： A new stabilizing method for linear aperiodic sampled-data systems with time delay inputs and uncertainties

Mobile node aware opportunistic routing in dynamic wireless sensor network

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The Journal of China Universities of Posts and Telecommunications 2016年第5期23卷 15-25页

作者： Lü Xiaojun jia xinchun Han Zongyuan Yang Bo Hao Jun Institute of Computing Technologies China Academy of Railway Sciences Beijing 100081 China School of Mathematical Sciences Shanxi University Taiyuan 030006 China

Opportunistic routing （OR） could adapt to dynamic wireless sensor networks （WSNs） because of its inherent broadcast nature. Most of the existing OR protocols focus on the variations of propagation environment which are caused by channel fading. However, a few works deal with the dynamic scenario with mobile nodes. In this paper, a mobile node （MN） aware OR （MN-OR） is proposed and applied to a WSN in the high-speed railway scenario where the destination node is deployed inside a high speed moving train, and the MN-OR not only considers the mobility of node but also utilizes the candidate waiting time induced by the timer-based coordination scheme. Specifically, to reduce the number of duplicate transmissions and mitigate the delay of information transmission, a new selection strategy of the candidate forwarders is presented. In addition, two priority assignment methods of the candidate forwarders are proposed for the general relay nodes （GRNs） and the rail-side nodes （RSNs） according to their different routing requirements. Extensive simulation results demonstrate that the proposed MN-OR protocol can achieve better network performances compared with some existing routing schemes such as the well-known Ad-hoc on-demand distance vector routing （AODV） and the extremely opportunistic routing （ExOR） protocols.

关键词： OR dynamic WSN mobile node selection strategy high-speed railway

Delay-dependent H-infinity control for continuous time-delay systems via state feedback

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控制理论与应用（英文版） 2007年第3期5卷 221-226页

作者： xinchun jia Yibo GAO Jingmei ZHANG Nanning ZHENG School of Mathematic Science Shanxi University Taiyuan Shanxi 030006 China Department of Mathematics Baoji University of Arts and Sciences Baoji Shaanxi 721007 China College of Electronic Information Engineering Taiyuan University of Science and Technology Taiyuan Shanxi 030024 China Institute of Artificial Intelligence and Robotics Xi＇an Jiaotong University Xi＇an Shaanxi 710049 China

The delay-dependent H-infinity analysis and H-infinity control problems for continuous time-delay systems are studied. By introducing an equality with some free weighting matrices, an improved criterion of delay-dependent stability with H-infinity performance for such systems is presented, and a criterion of existence and some design methods of delay-dependent H-infinity controller for such systems are proposed in term of a set of matrix inequalities, which is solved efficiently by an iterative algorithm. Further, the corresponding results for the delay-dependent robust H-infinity analysis and robust H-infinity control problems for continuous time-delay uncertain systems are given. Finally, two numerical examples are given to illustrate the efficiency of the proposed method by comparing with the other existing results.

关键词： Time-delay system Delay-dependent stability H-infinity control State feedback LMI approach

Design of Opportunistic Routing Based on Markov Decision Process 36

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Design of Opportunistic Routing Based on Markov Decision Pro...

第36届中国控制会议

作者： Jun Hao xinchun jia Zongyuan Han Bo Yang Dengyong Peng School of Mathematical Sciences Shanxi University Institute of Computing Technologies China Academy of Railway Sciences

ISBN: (纸本)9781538629185

The instability of wireless links makes the choice of forwarding nodes have too many possibilities in opportunistic *** this paper,the Markov decision process（MDP） is used to model the whole packet forwarding process from the source node to the destination node,which facilitates making reasonable decisions when the sender selects the forwarding *** solving a finite-state MDP problem,an optimal forwarding strategy is obtained to minimize the expected number of transmissions for each *** more,the properties of expected any-path transmissions（EAX） are used for the selection of candidate forwarder set,which can significantly reduce the feasible optimal solution ***,An opportunistic routing protocol based on Markov decision process（MDP-OR） is designed,whose effectiveness is verified by an example and its simulation.

关键词： Opportunistic Routing Markov Decision Process Optimal Forwarding Strategy

Leader-following Secure Consensus for Multi-Agent Systems with Nonlinear Dynamics under Denial-of-Service Attack

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Leader-following Secure Consensus for Multi-Agent Systems wi...

第32届中国过程控制会议(CPCC2021)

作者： Xiu You Junru Xu xinchun jia School of Mathematical Sciences Shanxi University School of Automation and Software Engineering Shanxi University

This article studies the leader-follower secure consensus for multi-agent systems(MASs) with complex nonlinear dynamics under Denial-of-Service(DoS) ***,considering the DoS attack can block the information exchange between agents,a distributed intermittent controller is ***,by utilizing the dwell time analysis method,explicit analysis of the duration and the frequency of DoS attack are also presented such that MASs under DoS attack can still achieve consensus by the proposed *** addition,by constructing appropriate Lyapunov function and employing the inductive approach,the stability of cooperative error system is analyzed to derive the sufficient conditions to achieve cooperative tracking ***,numerical simulation is provided to illustrate the theoretical results.

关键词： Multi-agent Systems(MASs) Denial-of-Service(DoS) attack distributed intermittent control Leader-following consensus

An improved RRT algorithm for mobile robot path planning

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An improved RRT algorithm for mobile robot path planning

第32届中国过程控制会议(CPCC2021)

作者： Wenjie Bai xinchun jia Teng Lv School of Mathematical Sciences Shanxi University School of Automation and Software Engineering Shanxi University

Aiming at the problems of traditional Rapidly-exploring Random Trees(RRT) in mobile robot path planning,such as low node utilization,redundant turning points,long and unsmooth path,an improved RRT algorithm(Improved RRT,I-RRT) is *** I-RRT first uses a dynamic step size strategy based on probability division and an angle constraint strategy to determine the new ***,an ant colony optimization algorithm(Ant Colony Optimization,ACO) is utilized to optimize the generated path from both length and smoothness ***,an improved piecewise B-spline path smoother is introduced to smooth the path at the *** simulation results show that,compared with the traditional RRT algorithm,the I-RRT algorithm has a higher planning efficiency,can obtain a shorter length of the planned path,the generated path is smoother,and is verified to be feasible and effective.

关键词： Path planning RRT dynamic step size angle constraint piecewise B-spline

Fuzzy dynamic matrix predictive control of ammonia injection quantityin SCR denitration systems

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Fuzzy dynamic matrix predictive control of ammonia injection...

第三十九届中国控制会议

作者： Xiaobo Chi Shenyang Zhao xinchun jia Pengfei Hou School of Mathematical Sciences Shanxi University Department of Automation Shanxi University

This paper presents a data-based dynamic matrix prediction control scheme for the amount of ammonia injection in SCR denitration systems. Aiming at the nonlinear problem of ammonia injection system caused by the change of working conditions, and considering the time delay caused by the measurement and the reaction process, a T-S fuzzy time delay model of ammonia injection systems is established based on the historical operating data of the generated DCS platform. Based on the T-S fuzzy model identification, an improved dynamic matrix control optimization algorithm is used to obtain the optimal ammonia injection amount at the current moment. The simulation results show that the dynamic matrix control based on the T-S fuzzy model can shorten the adjustment time and improve the robustness of the system compared to the classic PID control.

关键词： Dynamic matrix control(DMC) SCR denitration systems T-S fuzzy time delay model

Consensus of Multi-Agent Systems with a multi-rate sampling mechanism under deception attacks

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Consensus of Multi-Agent Systems with a multi-rate sampling ...

第32届中国过程控制会议(CPCC2021)

作者： Teng Lv xinchun jia Wenjie Bai Yue Wang Bo Liu School of Mathematical Sciences Shanxi University School of Automation and Software Engineering Shanxi University

In this paper,the consensus of multi-agent systems(MASs) with multi-rate sampling mechanism under deception attacks is studied.A new variable is introduced to represent the multi-rate sampling *** a new judgment mechanism is developed to judge whether the variable needs to be updated at the sampling *** observer is constructed to estimate the states of agents based on the new ***,deception attacks in communication networks occur in a random manner.A controller based on observer is proposed to deal with deception attacks in *** on Lyapunov function method,it is proved that the proposed controller guarantees the consensus of MASs with a multi-rate sampling mechanism under deception ***,a numerical simulation is given to verify the effectiveness of the results obtained.

关键词： Multi-agent systems Multi-rate sampling mechanism Deception attacks