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IEEE International Conference on Computer Supported Cooperative Work in Design

作者： Yan-hua Liang Chengtao Cai Jie Zhao Guo-xiang Chang Li-hui Wang Xiao-long Lv College of Electrical and Control Engineering Heilongjiang University of Science and Technology College of Automation Harbin Engineering University

ISBN: (纸本)9781509019168

Substation is the hub of the power grid. Regular inspection is very crucial in order to confirm the electrical equipment in substation to operate normally. Recently, manual inspection is gradually replaced by inspection robot. Local environment modelling and path planning are mainly key problems when patrol robot carry out the inspection work. For dealing with this challenging but imperative issue, there are numerous researchers have strove for this scientific field and have proposed some valuable approaches. The LIDAR is one of excellent sensors for environment perception and collision avoidance for robot. For enhancing the suitability of path planning, a novel local environment modelling method is proposed in which the safety, accessibility, stability and reachability are taken into account when the patrol robot moves in unknown environment, one robot control algorithm which meet the kinematics and dynamics motion principle is investigate as well. Some simulation experiments have also been conducted for validating modelling and planning performance of the proposed approach.

关键词： Local environment modelling Patrol robot Path planning and collision avoidance

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Effect of carrier gas pressure on vapor condensation and mass flow-rate in sonic nozzle

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Journal of Central South University 2015年第12期22卷 4864-4871页

作者：丁红兵王超陈超 Tianjin Key Laboratory of Process Measurement and Control School of Electrical Engineering and AutomationTianjin University

Non-equilibrium vapor condensation of moist gas through a sonic nozzle is a very complicated phenomenon and is related to the measurement accuracy of sonic nozzle.A gas-liquid two-phase model for the moist gas condensation flow was built and validated by moist nitrogen experiment of homogeneous nucleation through a transonic *** effects of carrier gas pressure on position and status of condensation onset in sonic nozzle were investigated in *** results show that condensation process is not easy to occur at lower carrier pressure and throat *** main factors influencing condensation onset are boundary layer thickness,heat capacity of carrier gas and expansion *** of results can be used to further analyze the effect of condensation on mass flow-rate of sonic nozzle.

关键词： condensation gas-liquid flow droplet growth sonic nozzle carrier gas pressure

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Heuristic regression method for descriptive data analysis 16

Heuristic regression method for descriptive data analysis

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16th International Conference on Environment and electrical engineering, EEEIC 2016

作者： Gomes, Flavio A. Gomes, Viviane M. Assis, Alfredo De O. Reis, Marcio R. Da C. Da Cruz, Gelson Calixto, Wesley P. Electrical Mechanical and Computer Engineering School University of Goias Brazil Experimental and Technological Research and Study Group Federal Institute of Goias Brazil Program in Electronic Systems and Automation University of Brasilia Brazil

ISBN: (纸本)9781509023196

The purpose of this paper is to use the hybridized optimization method in order to find mathematical structures for analysis of experimental data. The heuristic optimization method will be hybridized with deterministic optimization method in order to that structures found require not knowledge about data generated experimentally. Three case studies are proposed and discussed to validate the results. The proposed method has viable solution for the analysis of experimental data and extrapolation, with mathematical expression reduced. © 2016 IEEE.

关键词： Heuristic methods

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On Robust Stability of Switched Systems in the Context of Filippov Solutions

arXiv

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arXiv 2017年

作者： Ahmadi, Mohamadreza Mojallali, Hamed Wisniewski, Rafael University of Texas at Austin Peter O’Donnell Jr. Building 201 E 24th St AustinTX78712 United States Department of Electrical Engineering Faculty of Engineering University of Guilan Rasht41996-13769 Iran Department of Electronic Systems Automation and Control Aalborg University Fredrik Bajers Vej 7 C Aalborg East9220 Denmark

The stability problem of a class of nonlinear switched systems defined on compact sets with state-dependent switching is considered. Instead of the Carathéodory solutions, the general Filippov solutions are studied. This encapsulates solutions with infinite switching in finite time and sliding modes in the neighborhood of the switching surfaces. In this regard, a Lyapunov-like stability theorem, based on the theory of differential inclusions, is formulated. Additionally, the results are extended to switched systems with simplical uncertainty. It is also demonstrated that, for the special case of polynomial switched systems defined on semi-algebraic sets, stability analysis can be checked based on sum of squares programming techniques. Copyright © 2017, The Authors. All rights reserved.

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Integral vector field path following for a stratospheric satellite

Integral vector field path following for a stratospheric sat...

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AIAA Guidance, Navigation, and control Conference, 2016

作者： Chen, Tian Zheng, Zewei Zhu, Ming Wu, Zhe School of Aeronautic Science and Engineering Beihang University Beijing100191 China Science and Technology on Aircraft Control Laboratory The Seventh Research Division Beihang University Beijing100191 China School of Automation Science and Electrical Engineering Beihang University Beijing100191 China

ISBN: (数字)9781624103896

ISBN: (纸本)9781624103896

This paper addresses the integral vector field path following problem of a stratospheric satellite, which is an effective way to realize orbit keeping. The controller designed for path following is based on the theories of integral vector field guidance law, dynamic surface control and terminal sliding mode control. Firstly, a 6 degree-of-freedom (DOF) stratospheric satellite model is presented, which is the foundation of controller design and simulation. Secondly, the path following controller is proposed, which includes integral vector-fieldbased guidance laws to guide the satellite towards the desired path, terminal sliding mode controllers to reduce path-following errors into an acceptable range in a finite time, and a low pass filter designed to estimate virtual control inputs;a forward velocity controller is also added to maintain a constant velocity. Finally, simulation results demonstrate the effectiveness of the proposed control algorithm. © 2016 American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： Satellites

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LQ control of Lotka-Volterra Systems Based on their Locally Linearized Dynamics

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IFAC-PapersOnLine 2016年第10期49卷 241-245页

作者： Lipták, Görgy Magyar, Attila Hangos, Katalin M. University of Pannonia Faculty of Information Technology Department of Electrical Engineering and Information Systems H-8200 Egyetem street 10 Veszprém Hungary HAS Computers and Automation Research Institute Process Control Research Group H-1111 Kende street 13-17 Budapest Hungary

This work applies the LQ control framework to the class of quasi-polynomial and Lotka-Volterra systems through the linearized version of their nonlinear system model. The primary aim is to globally stabilize the original system with a suboptimal LQ state feedback by means of a well-known entropy-like Lyapunov function that is related to the diagonal stability of linear systems. This aim can only be reached in the case when the quasi-monomial composition matrix is invertible. In the rank-deficient case only the local stabilization of the system is possible with an LQ controller that is designed using the locally linearized model of the closed-loop system model. © 2016

关键词： System stability Biological systems Closed loop systems Linear matrix inequalities Linear systems Linearization Lyapunov functions Nonlinear systems State feedback Closed loop system modeling Composition matrixes Linearized dynamics Local stabilizations Lotka Volterra systems LQ control Lyapunov stability Nonlinear system modeling

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Fully autonomous flying: from collective motion in bird flocks to unmanned aerial vehicle autonomous swarms

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Science China(Information Sciences) 2015年第12期58卷 211-213页

作者： QIU HuaXin WEI Chen DOU Rui ZHOU ZiWei Science and Technology on Aircraft Control Laboratory School of Automation Science and Electrical EngineeringBeihang University

1 Introduction The unmanned aerial vehicle(UAV),an aircraft with no pilots on board,appeals to widespread applications in military and civil fields[1].In complex and dynamic mission environments,a single UAV will

关键词： UAV Fully autonomous flying from collective motion in bird flocks to unmanned aerial vehicle autonomous swarms

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Real time Object Tracking based on Local Texture Feature with Correlation Filter

Real time Object Tracking based on Local Texture Feature wit...

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2016 IEEE International Conference on Digital Signal Processing, DSP 2016

作者： Qiao, Meina Wang, Tian Dong, Yuan Shi, Jingang Teng, Jing Snoussi, Hichem School of Automation Science and Electrical Engineering Beihang University Beijing China School of Electronic and Control Engineering Chang'An University Shaanxi Xi'an China School of Electronic and Information Engineering Xi'An JiaotongUniversity Shaanxi Xi'an China School of Control and Computer Engineering North China Electric Power University Beijing China Institute Charles Delaunay-LM2S-UMR STMR 6279 CNRS University of Technology of Troyes France

ISBN: (纸本)9781509041657

Object tracking is a fundamental problem in computer vision, therefore attracts many researchers and there has been many influential algorithms in the list few years. A good feature descriptor is half of the success. In this paper, we propose an effective tracking algorithm based on texture feature with correlation filter. We improve the tracking precision by Haar-like feature and speed it up via discrete Fourier transform. The feature which is a good representation of the target can be obtained via dense sampling. What is more important is that the feature containing a great deal of information of the target appears only in the form of low-dimension. With the property of circluant matrix, we can translate the processes of training and testing into Fourier domain, which can cut the computation and reduce the time complexity. Our algorithm is proved to have better performance especially in deformation and rotation in the benchmark datasets. © 2016 IEEE.

关键词： Discrete Fourier transforms

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Pigeon-Inspired Optimization Approach to Information Granulation-based Fuzzy RBF Neural Networks for Image Fusion

Pigeon-Inspired Optimization Approach to Information Granula...

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2016 IEEE Chinese Guidance, Navigation and control Conference (IEEE CGNCC2016)

作者： Zizhuo Wang Fangyuan Sui Jiaqi Jia Haibin Duan School of Mechanical Engineering and Automation Beihang University(BUAA) School of Automation Science and Electrical Engineering Beihang University(BUAA) IEEE Science and Technology on Aircraft Control Laboratory School of Automation Science and Electrical EngineeringBeihang University(BUAA)

ISBN: (纸本)9781467383196

Nowadays,bio-mimetic method comes more and more popular as being applied in various fields including image fusion.A number of population-based algorithms are proposed to solve this kind of problem for example the ant colony optimization and the artificial bee colony *** this paper,an original approach with bionic solutions named Pigeon-Inspired Optimization(PIO) is proposed,which possesses high efficiency especially for discrete optimization *** is combined with the fuzzy radial basis function neural network to optimize the problem of image fusion.A population-based searching process is provided to the optimization model,which is inspired by the movements of pigeons that can accurately guide a group of pigeons to their final destination.A series of experiments are set up in this paper to verify the feasibility and effectiveness of the method.

关键词： image Pigeon-Inspired Optimization Approach to Information Granulation-based Fuzzy RBF Neural Networks for Image Fusion Fuzzy

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Protein Secondary Structure Prediction via Pigeon-Inspired Optimization

Protein Secondary Structure Prediction via Pigeon-Inspired O...

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2016 IEEE Chinese Guidance, Navigation and control Conference (IEEE CGNCC2016)

作者： Wei Zheng Hemeng Sun Haibin Duan School of Automation Science and Electrical Engineering Beihang University(BUAA) IEEE Science and Technology on Aircraft Control Laboratory School of Automation Science and Electrical Engineering Beihang University(BUAA)

ISBN: (纸本)9781467383196

Proteins are the essential elements in all creatures' life *** prevailing experimental method to detect protein structure is time *** to Anfinsen's theory,the primary structure is the key to shaping the three-dimensional structure of the ***,the prediction of proteins' structure avoiding complex experiments is theoretically *** are applied to make the protein structure prediction while they have some unsatisfactory *** instance,relatively high Gibbs free energy or long iterating *** this paper,a new algorithm is introduced to solve this *** name is "Pigeon-Inspired Optimization(PIO) Algorithm".PIO can work out an accurate prediction in relatively short *** advantages and feasibility of this algorithm will be demonstrated through the experiments,comparing to Particle Swarm Optimization.

关键词： PIO Protein Secondary Structure Prediction via Pigeon-Inspired Optimization

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