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Dynamic Coverage with Wireless Sensor and Actor Networks in Underwater Environment

IEEE/CAA Journal of Automatica Sinica 2015年第3期2卷 274-281页

作者： Xiaoyuan Luo Liu Feng Jing Yan Xinping Guan the Institute of Electrical Engineering Yanshan University the Department of Automation Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China

This paper studies the problem of dynamic coverage with wireless sensor and actor networks (WSANs) in underwater environment. Different from most existing works, the WSANs consist of two kinds of nodes, i.e., sensor nodes (SNs) which cannot move autonomously and actor nodes (ANs) which can move autonomously according to the performance requirement. The problem of how to coordinate two kinds of nodes to facilitate dynamic coverage in underwater environment is challenging due to their heterogeneous capabilities. To reduce redundancy of communication links and improve connectivity between ANs and SNs in underwater WSANs, a min-weighted rigid graph based topology optimization scheme is first developed, such that the underwater communication energy consumption can be saved. With the optimized topology, a dynamic coverage strategy is proposed to improve the coverage among SNs and ANs for underwater WSAN where underwater fluid motions are considered. Furthermore, it is proved that the network coverage area is connected by using the min-weighted rigid graph. Finally, simulation results are presented to show the effectiveness of the main results. © 2014 Chinese Association of Automation.

关键词： Energy utilization Graphic methods Sensor nodes Topology

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Weak signal detection method based on novel composite multistable stochastic resonance

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Chinese Physics B 2023年第5期32卷 178-187页

作者：焦尚彬高蕊薛琼婕史佳强 Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing Xi’an University of TechnologyXi’an 710048China School of Electronic and Electrical Engineering Baoji University of Arts and SciencesBaoji 721016China

The weak signal detection method based on stochastic resonance is usually used to extract and identify the weak characteristic signal submerged in strong noise by using the noise energy transfer *** propose a novel composite multistable stochastic-resonance(NCMSR)model combining the Gaussian potential model and an improved bistable *** with the traditional multistable stochastic resonance method,all the parameters in the novel model have no symmetry,the output signal-to-noise ratio can be optimized and the output amplitude can be improved by adjusting the system *** model retains the advantages of continuity and constraint of the Gaussian potential model and the advantages of the improved bistable model without output saturation,the NCMSR model has a higher utilization of *** the output signal-to-noise ratio as the index,weak periodic signal is detected based on the NCMSR model in Gaussian noise andαnoise environment respectively,and the detection effect is *** application of NCMSR to the actual detection of bearing fault signals can realize the fault detection of bearing inner race and outer *** outstanding advantages of this method in weak signal detection are verified,which provides a theoretical basis for industrial practical applications.

关键词： weak signal detection composite multistable stochastic resonance bearing fault detection

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Fast S-transform for fault line selection in distribution network system 13

Fast S-transform for fault line selection in distribution ne...

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13th IEEE Conference on Industrial Electronics and Applications, ICIEA 2018

作者： Shang-Bin, Jiao Yun-Peng, Yang Yan-Jin, Shi Wen-Wen, Shi Jing-Wen, Guo Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing Xi'an710048 China

ISBN: (纸本)9781538637579

The current of the distribution networks under 66kV is widely operating in small current grounding mode. The problem of extracting the fault feature in each line would be quite difficult due to the short duration of the transient zero sequence current with the non-stationary and non-linear characteristics when the single-phase-to-ground fault occurs in the system. Therefore, a novel method of single-phase-to-ground fault line selection for small current based on Fast S-transform (FST) is developed in this paper. Firstly, FST is presented to transform the transient electric current signal in each feeder, after that the one-dimension modulus and phase angle value can been obtained. Then, the feeder with the largest energy value calculated by the modulus obtained above is selected as the alternative possible fault line. Finally, line failure or bus failure can been determined by evaluating the difference of the phase angle between the fault line and the comparison line that has been selected from the non-alternative feeders before. The results of the simulative and experimental circuits reveal that the proposed method using FST can avoid the influence of neural point grounding type. Additionally, the method of line selection is quite accurate and real-time. © 2018 IEEE.

关键词： Electric grounding

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A Counter-swarm Splitting Strategy using Receding Horizon control Algorithm 41

A Counter-swarm Splitting Strategy using Receding Horizon Co...

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第41届中国控制会议

作者： Angwei Zhang Dewei Li Haibin Shao Lulu Pan Yaonan Guan the Department of Automation and the Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai Jiao Tong University

ISBN: (数字)9789887581536

ISBN: (纸本)9781665482561

This paper proposes a model predictive control framework for the task of countering the swarm of autonomous *** on the Boids model,the neighbor selection mechanism and interaction model are further employed to characterize the formation of the target *** is assumed that individuals in the target swarm are equipped with a collision avoidance *** the perspective of the position and velocity of individuals in the target swarm,Lanchester's index and polarization index are employed to characterize the performance of the counter-swarm strategy,*** strategy of splitting the target swarm via attacking its geometric centroid is proposed and the model predictive control framework for the counter-swarm task is designed.A simulation is finally provided to illustrate the effectiveness of the proposed strategy.

关键词： counter swarm model predictive control autonomous systems Boids model collision avoidance

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A Multi-Agent Model of Opinion Formation with Group Polarization 33

A Multi-Agent Model of Opinion Formation with Group Polariza...

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第三十三届中国控制会议

作者： LIU Qipeng ZHAO Jiuhua WANG Xiaofan Department of Automation Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China

ISBN: (纸本)9781479947249

This paper studies the opinion dynamics with group *** say a process of opinion formation is polarizing if the final opinions after group discussion are more divergent than individuals’initial *** capture this phenomenon,we develop a multi-agent model of opinion formation in which each agent forms her opinion according to all arguments available to her,and during interacting with other agents,she assimilates the arguments of neighbors in a biased manner which can be represented by a modified Polya’s Urn *** find that biased assimilation of arguments can result in group polarization effectively,especially under the condition when the agents are relatively isolated in the network.

关键词： Multi-agent systems,Opinion dynamics,Group polarization,Biased assimilation,Polya's Urn process

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Research on Novel Fountain code for UAV Formation Flight control in UV Communication 7

Research on Novel Fountain code for UAV Formation Flight Con...

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2017 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies

作者： Tai-fei Zhao YingXie XueLiu Peng Song Information Processing Xi'an University of Technology Shannxi Key Laboratory of Complex System Control and Intelligent Xi'an University of Technology

ISBN: (纸本)9781509059300;9781509059294

Research of Unmanned Aerial Vehicle(UAV) formation is a hot spot in the field of UAV applications. Based on the fountain code, an encoding communication scheme using unequal level coding Lu by Transform(ULC-LT) code and stepwise unequal error protection Lu by Transform(SUEP-LT) code are proposed for the UAV formation communication. Simulation results reveal that the proposed coding scheme can reduce the decoding bit error rate and provide strong unequal error protection property across sources.

关键词： UAV Ultraviolet communication Fountain code Unequal Error Protection

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Two-layer PSDG Based Fault Diagnosis for Wind Turbines 36

Two-layer PSDG Based Fault Diagnosis for Wind Turbines

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第36届中国控制会议

作者： Yang Jing Li Ning Li Shaoyuan Department of Automation and Key Laboratory of System Control and Information Processing Ministry of Education of ChinaShanghai Jiao Tong University

ISBN: (纸本)9781538629185

Fault diagnosis of the wind power system is a common problem in the routine maintenance of the wind ***,most researches and practical applications focus on separate components,which do not take correlations of different components into *** paper presents a novel two-layer Probabilistic Signed Directed Graph(PSDG) method for the fault diagnosis of the overall wind power ***,we establish a sensor data layer to detect the variations in the wind power system based on the complex network *** we utilize the fault list to build a Bayesian *** figure out the search sequence based on the comprehensive ranking index and introduce two evaluation indices to evaluate our ***,the proposed method is tested on actual fault data from a wind farm in the northwest of *** result shows that the proposed method not only ensures the accuracy of the fault diagnosis,but also guarantees the quickness of the fault search.

关键词： Fault Diagnosis Wind Power Bayesian network Complex Network Two-layer PSDG Ranking Index

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LineMe:A Platform for Constructing Evolving Social Networks 36

LineMe:A Platform for Constructing Evolving Social Networks

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第36届中国控制会议

作者： Yansong Teng Lin Wang Xiaofan Wang Department of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education of China

ISBN: (纸本)9781538629185

Although online social network platforms such as Facebook and WeChat have collected huge amount of online ties,many of the ties do not correspond to real-world(offline) friendships and the amount of online communication between a pair of people does not necessarily quantify the strength of the tie in ***,real-world strong and weak ties were collected via questionnaires which were not *** we collect massive offline social ties via online platforms? In this work,we design LineMe,an online website and toolkit which allows users to map their offline friend ties within a *** is scalable and flexible to handle large-scale and controllable experiments on social *** perform an empirical experiment to collect evolving network data in a class of graduates for 4 *** is open to everyone and is now available at http://***.

关键词： Social networks offline data-collection network evolving

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Time-varying Output Formation control Based on a Reduced-order Output-feedback Protocol 41

Time-varying Output Formation Control Based on a Reduced-ord...

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第41届中国控制会议

作者： Zhuo Chen Xianwei Li Department of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education of China

ISBN: (数字)9789887581536

ISBN: (纸本)9781665482561

This paper investigates time-varying output formation(TVOF) of homogeneous linear multi-agent systems based on a reduced-order output-feedback ***,a reduced-order output-feedback protocol using relative information of neighboring agents is *** this protocol,a necessary and sufficient condition for achieving TVOF is *** explicit expression of the time-varying formation reference function and a feasibility condition for TVOF are *** an algorithm is proposed for designing the protocol *** is shown that when the dynamics of each agent is stabilizable and detectable,the multi-agent system can achieve a desired TVOF under the protocol designed by the *** with existing results which only consider full-order protocols,the proposed protocol has a lower order and thus has lower implementation *** simulation is finally presented to demonstrate the effectiveness of the proposed protocol.

关键词： Time-varying output formation(TVOF) multi-agent systems output feedback reduced-order design

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A Modified LQG Benchmark for Economic Performance Assessment of Model Predictive control 33

A Modified LQG Benchmark for Economic Performance Assessment...

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第三十三届中国控制会议

作者： DUAN Meimei LI Ning LI Shaoyuan Department of Automation Shanghai Jiao Tong UniversityKey Laboratory of System Control and Information ProcessingMinistry of Education of China

ISBN: (纸本)9781479947249

In this paper, an improved LQG benchmark for the economic performance assessment of model predictive control system is presented. The LQG benchmark is obtained by a regression of a series of discrete points calculated through solving LQG problem. The discrete points obtained by traditional method present an unbalanced distribution, thus leading to an unsatisfied regression curve especially at the lower part where the distribution is sparse. However, the lower part of the LQG trade-off curve is more significant for the economic performance assessment as they are closer to the minimum variance. To avoid this distribution phenomenon and get a better regression performance curve, we change the form of the LQG benchmark and propose a mathematic method which uses an exponential increasing weighting factor to build the discrete points. The effectiveness of the proposed approach is illustrated by a simulation example to economic performance assessment of a model predictive control system.

关键词： model predictive control,economic performance assessment,modified LQG benchmark,steady-state optimization

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