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International Conference on control, Automation, Robotics and Vision (ICARCV)

作者： Xianwei Li Yang Tang Bing Zhu Shaoyuan Li Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai China Key Laboratory of Advanced Control and Optimization for Chemical Processes East China University of Science and Technology Shanghai China Seventh Research Division School of Automation Science and Electrical Engineering Beihang University Beijing China

ISBN: (数字)9781728177090

ISBN: (纸本)9781728177106

This paper studies the design of adaptive event-triggered protocols for consensus of linear multi-agent systems (MASs) with external disturbances. Different from most of the existing results that deal with undirected graphs, this paper addresses directed graphs, specifically graphs that are assumed to be strongly connected. Inspired by a recent development [1], this paper devises novel adaptive event-triggered protocols for linear MASs with all agents subject to external disturbances. Two specific designs of composite triggering conditions are analysed and discussed. Compared with the disturbance-free case, additional constraints need to be introduced to deal with external disturbances and moreover the time-dependent terms are allowed to take any finite functions, rather than a class of L1 functions.

关键词： Protocols Eigenvalues and eigenfunctions Laplace equations Directed graphs Symmetric matrices Closed loop systems Automation

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Advantageous properties of halide perovskite quantum dots towards energy-efficient sustainable applications

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Green Energy & Environment 2024年第6期9卷 949-965页

作者： Qian Zhao Shuo Wang Young-Hoon Kim Shekhar Mondal Qingqing Miao Simiao Li Danya Liu Miao Wang Yaxin Zhai Jianbo Gao Abhijit Hazarika Guo-Ran Li School of Materials Science and Engineering Nankai UniversityTianjin300350China Department of Energy Engineering Hanyang UniversitySeoul04763Republic of Korea Polymers and Functional Materials Division CSIR-Indian Institute of Chemical TechnologyUppal RoadTarnakHyderabad500007India Institute of Process Engineering Chinese Academy of SciencesBeijing100190China Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of PhysicsHunan Normal UniversityChangshHunan410081China Department of Chemistry Brock University1812 Sir Isaac WaySt CatharinesOntarioCanada

As lead halide perovskite(LHP)semiconductors have shown tremendous promise in many application fields,and particularly made strong impact in the solar photovoltaic area,low dimensional quantum dot forms of these perovskites are showing the potential to make distinct marks in the fields of electronics,optoelectronics and *** so-called perovskite quantum dots(PQDs)not only possess the most important features of LHP materials,i.e.,the unusual high defect tolerance,but also demonstrate clear quantum size effects,along with exhibiting desirable optoelectronic properties such as near perfect photoluminescent quantum yield,multiple exciton generation and slow hot-carrier ***,we review the advantageous properties of these nanoscale perovskites and survey the prospects for diverse applications which include lightemitting devices,solar cells,photocatalysts,lasers,detectors and memristors,emphasizing the distinct superiorities as well as the challenges.

关键词： Perovskite quantum dot Light-emitting Detector Laser Solar cell

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Color image segmentation based on AWF-AP and graph cuts

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ICIC Express Letters, Part B: Applications 2016年第3期7卷 627-632页

作者： Kong, Jun Gao, Kun Jiang, Min Liu, Chenhua Yaermaimaiti, Yilihamu Key Laboratory of Advanced Process Control for Light Industry Ministry of Education Jiangnan University No. 1800 Lihu Avenue Wuxi China College of Electrical Engineering Xinjiang University No. 14 Shengli Road Urumqi China

In this paper, we propose a new image segmentation algorithm based on AWF-AP (affinity propagation algorithm based on adaptive weight feature) and graph cuts. Firstly, the image is clustered into numbers of regions by using AWF-AP and we choose proper models to express these regions. Then the proper models are regarded as labels to construct the energy function and the weighted graph. Finally, graph cuts is applied to achieving energy minimization and getting the segmentation results. According to the experimental results, it shows that the presented segmentation method performs effective results in terms of both accuracy and computation efficiency. © 2016.

关键词： Image segmentation

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A parameter tuning method of proportional integral controller for the first-order plus delay time system based on the desired dynamical performance

A parameter tuning method of proportional integral controlle...

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World Congress on Intelligent control and Automation (WCICA)

作者： Kai Ji Ling Xu Huamin Zhang Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Jiangnan University Wuxi PR China School of Internet of Things Technology Wuxi Institute of Commerce Wuxi PR China

The system dynamic performance index indicates the control quantity of a control system. This paper proposes a proportional differential controller design method according to the system dynamic performance requirement. The proposed tuning method is used to the first-order plus delay time system. The simulation results show that the proposed method works effectively.

关键词： Tuning Delays PD control Transfer functions process control Damping

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Optimal denial-of-service attack scheduling for remote state estimation via sequential observations

Optimal denial-of-service attack scheduling for remote state...

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第43届中国控制会议

作者： Xinxin Yang Yuqing Ni Xiaomeng Chen Shan Chen Fei Liu The Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) School of Internet of Things EngineeringJiangnan University Department of Electronic and Computer Engineering Hong Kong University of Science and Technology

ISBN: (数字)9789887581581

ISBN: (纸本)9798350366907

This study investigates the optimal allocation problem of attack energy in multi-system remote state estimation for Cyber-Physical Systems(CPSs). We consider a scenario where there are M independent systems, each equipped with a remote sensor monitoring system. The local estimates from these systems are sent to a remote estimator through a packet loss channel. The objective of the attacker is to degrade the communication channel between the sensors and the remote estimator. Due to capacity limitations, the attacker is restricted to attacking at most one out of M channels. We incorporate interference from other sensors or interference sources into the communication model based on the SINR(Signal-to-Interference-plus-Noise Ratio)model. It should be noted that the same attack power can lead to different packet loss rates in different network *** the attacker's perspective, the goal is to find the optimal attack strategy that maximizes the average estimation error of the remote estimator. Given the uncertainties of wireless network environments, we employ the sequentially-observed Markov decision process(SOMDP) framework to solve the problem. By observing the wireless channels, we gather additional information and incorporate it into the decision-making policy, resulting in better performance than using a standard Markov decision process(MDP). The simulation results support our theoretical findings.

关键词： SOMDP remote state estimation packet loss channel CPS security

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Observer Design for Boundary Coupled Fractional Order Distributed Parameter Systems

Observer Design for Boundary Coupled Fractional Order Distri...

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International Conference on control, Mechatronics and Automation (ICCMA)

作者： Yanjiu ZHOU Juan CHEN Baotong CUI Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) School of IoT Engineering Jiangnan University Wuxi China Department of Computer Systems Tallinn University of Technology Tallinn Estonia

This paper studies the observer design for the fractional order boundary coupled distributed parameter systems. Firstly, we obtain the decoupled observer error systems from the state system and observer system. Secondly, the advection terms are eliminated through the invertible transformation and we can obtain the general reaction-diffusion partial differential equations, which are more convenient for discussions. Thirdly, Backstepping method and target systems are employed to give kernel partial differential equations and then the related observer gains can be derived from the corresponding kernels. Finally, Mittag-Leffler stability of the designed fractional order observers is analyzed and the main results are illustrated by the simulation graphically.

关键词： control nonlinearities distributed parameter systems observers partial differential equations reaction-diffusion systems stability

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Generalized yule-walker blind identification for single-output multiple-output systems

Generalized yule-walker blind identification for single-outp...

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Chinese control Conference (CCC)

作者： Yanjun Liu Huibo Chen Feng Ding Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Jiangnan University Wuxi China Electrical Engineering Department Sanmenxia Polytechnic Sanmenxia P. R. China

Blind identification for single-input multiple-output systems has received much attention in the areas of communication and signal processing. This paper extends the Yule-Walker identification method of auto-regressive models to single-input multiple-output systems and presents a generalized Yule-Walker blind identification algorithm. In order to increase the computational efficiency, the generalized Yule-Walker based recursive least squares blind identification algorithm is presented by using the recursive least squares principle. The simulation results show the effectiveness of the proposed algorithm.

关键词： Correlation Signal processing algorithms Noise Least squares approximations Equations Mathematical model

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Approach of Moving Objects Detection in Active Video Surveillance

Approach of Moving Objects Detection in Active Video Surveil...

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Joint 48th IEEE Conference on Decision and control and 28th Chinese control Conference

作者： CHI Jian-nan ZHANG Chuang ZHANG Han LIU Yang YAN Yan-tao the School of Information Engineering University of Science and Technology Beijing Key Laboratory of Advanced Control of Iron and Steel Process (Ministry of Education) University of Science and Technology Beijing the University of Science and Technology Beijing

Image multi-scale edge detection based on antisymmetrical biorthogonal wavelet is given detailedly in theory, Especially an algorithm of wavelet decomposition in which multi-scale edge can be detected is put forward. Based on above using different kinds of wavelet decomposition data such as approximate coefficients and multi-scale edge image, a moving object detection approach in active video surveillance system is proposed. Firstly Block Matching is used to calculate motion vector in low frequency image of wavelet decomposition. Then Motion Compensation and Frame Difference between two adjacent frames applied to extract moving object information. And using multi-scale edge image of wavelet Region Growth is combined with Hough Transformation to define region of potential object. Finally object is farther segmented in object potential region. Experimental results indicate that the method presented in the paper is effective.

关键词： Object image Approach of Moving Objects Detection in Active Video Surveillance Hough Active

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Dynamic Adaptive Event-Triggered Scheme for General Linear Multi-Agent Systems ⁎

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IFAC-PapersOnLine 2020年第2期53卷 1789-1794页

作者： Wenying Xu Daniel W.C. Ho Wangli He School of Mathematics Southeast University Nanjing 21189 China Potsdam Institute for Climate Impact Research 14412 Potsdam Germany Department of Mathematics City University of Hong Kong Hong Kong. Key Laboratory of Advanced Control and Optimization for Chemical Processes Ministry of Education East China University of Science and Technology Shanghai 200237 China

This paper proposes a novel dynamic adaptive event-triggered scheme to deal with consensus problems in a class of general linear multi-agent systems. Firstly, a fully distributed event-triggered consensus protocol is proposed by assigning a time-varying coupling weight for each edge. Then by introducing an additional internal dynamic variable, a dynamic adaptive event condition is skillfully constructed and Zeno behavior is also successfully excluded. Based on this, the asymptotic consensus is eventually achieved and the frequency of communication among agents is significantly reduced. Finally, one simulation example is provided to verify the effectiveness of the proposed scheme.

关键词： Consensus event-triggered multi-agent system adaptive control

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Study on the compression-expansion coefficient in drift particle swarm optimization

Study on the compression-expansion coefficient in drift part...

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Congress on Evolutionary Computation

作者： Wei Fang Jun Sun Xiaojun Wu Wenbo Xu Vasile Palade Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Department of Computer Science and Technology Jiangnan University Wuxi China Department of Computer Science University of Oxford Oxford UK

ISBN: (纸本)9781467315104

This paper introduces a variant of particle swarm optimization algorithm called the drift particle swarm optimization (DPSO), which is inspired by the free electron model in an external electric field at finite temperature. As the compression-expansion coefficient in DPSO is an important parameter which can greatly influence the performance of the algorithm, three types of control strategies are proposed to control this parameter. The performance of these strategies on the DPSO is comprehensively evaluated on eight benchmark functions. From the experimental results and statistical tests, guidelines about selecting the control method for the compression-expansion coefficient are given.

关键词： Particle swarm optimization Benchmark testing Electric fields optimization Algorithm design and analysis educational institutions

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