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2013 IEEE International Conference on Robotics and Biomimetics, ROBIO 2013

作者： Ma, Gan Huang, Qiang Yu, Zhangguo Chen, Xuechao Meng, Libo Sultan, Malik Saad Zhang, Wen Liu, Yan IRI School of Mechatronical Engineering Beijing Institute of Technology Beijing China Key Laboratory of Biomimetic Robots and Systems Ministry of Education China Key Laboratory of Intelligent Control and Decision of Complex System China

ISBN: (纸本)9781479927449

One key technology for a humanoid robot is to sense the environment accurately and control the movement of the robot in realtime. This paper addresses this problem and focuses on the visual servoing control of an anthropomorphic robotic arm. A high precision, image-based visual servo algorithm for an eye-in-hand visual system is proposed to control the movement of the anthropomorphic arm. The control objective of the controller is to lock all the feature points at fixed points on the image plane. Then, impedance control law is implemented to keep the flexible of the arm. Finally, the effectiveness of the proposed methods are verified by experiments on our humanoid robotic arm platform. © 2013 IEEE.

关键词： Anthropomorphic robots

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一种仿生水下机器人的设计与动力学分析(英文)

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自动化学报 2013年第8期39卷 1330-1338页

作者： WEI Qing-Ping WANG Shuo DONG Xiang SHANG Liu-Ji TAN Min The State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Institute of Intelligent Machines Chinese Academy of Sciences

A biomimetic underwater vehicle propelled by two undulating long-fins is introduced in this paper. The concerned vehicle is propelled by two symmetrical undulating long-fins installed on both sides. Ten servo motors are employed to drive the long-fins and cosine wave function is employed for motor control. A real-time control system is designed for controlling the long-fins by adjusting its oscillating frequency and oscillating amplitude. An inertial measurement unit is installed to collect the accelerations and angular velocity. To obtain the relationship between oscillating frequency/amplitude and swimming performance, kinematic analysis and hydromechanic analysis are given. By dividing the long-fin into many small elements and computing the hydrodynamic force acting on each element, the instantaneous thrust generated by the long-fin is obtained. Then the average thrust of the long-fin is obtained by summing up the forces acted on the elements in one undulating period. Then swimming experiments are carried out to validate the vehicle design and kinematic analysis and hydromechanic analysis. And two swimming motion modes including marching and rotating locomotion are chosen. Finally, discussions between the swimming performance and the oscillating parameters are given.

关键词：水下机器人车辆设计动力学分析起伏仿生鳍计算流体动力学运动学分析

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NNDOB-based Composite control for Binary Distillation Column Under Disturbances

NNDOB-based Composite Control for Binary Distillation Column...

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第三十二届中国控制会议

作者： LI Juan CHEN Xisong LI Shihua YANG Jun ZHOU Jiancheng School of Automation Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of EducationP.R.China School of Chemistry and Chemical Engineering Southeast University

ISBN: (纸本)9781479900305

This paper presents a composite disturbance rejection control strategy for high purity binary distillation column with complex characteristics,such as couplings,non-minimum phase,model mismatches and external *** goal of the controller is to get the desired top and bottom compositions in presence of both model mismatches and external *** composite controller includes neural network inverse controller(NNIC) and neural network disturbance observer(NNDOB) both using radial basis fimction network(RBFN).The inverse model of the system is identified by RBFN,whose stability is proved via the Lyapunov fimction *** a rigorous analysis is also given to show why the NNDOB can effectively suppress the *** of the proposed scheme is compared with PID and NNIC schemes in two *** feasibility, effectiveness and disturbance rejection property of the proposed method are demonstrated by the simulation studies.

关键词： Composite controller Disturbance Rejection Neural Network Disturbance Observer Binary Distillation Column.

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The CPG gait generate method of the quadruped robot based on iterative learning control algorithm

The CPG gait generate method of the quadruped robot based on...

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2013 2nd International Conference on Micro Nano Devices, Structure and Computing systems, MNDSCS 2013

作者： Wang, Cheng Gao, Junyao Duan, Xingguang Liu, Yi Li, Xin Xu, Zhe Sun, Wentao Intelligent Robotics Institute China Key Laboratory of Biomimetic Robots and Systems Ministry of Education China Key Laboratory of Intelligent control and decision of complex systems School of Mechatronical Engineering Beijing Institute of Technology Nandajie Zhongguancun Haidian Beijing 100081 China

ISBN: (纸本)9783037856420

Based on the quadruped robot, this paper mainly studies the two directions of the content. The first part mainly introduces the mechanical structure design and the construction of the control system of the quadruped robot, completes the prototype design of the quadruped robot based on hydraulic power system. The second part studies the CPG gait generate method of the quadruped robot based on iterative learning control algorithm. From the principle of bionics, firstly, we use the CPG principle to generate gait, and then use the iterative learning control theory to make the control more optimization. © (2013) Trans Tech Publications, Switzerland.

关键词： Learning algorithms

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Modeling plant plasticity from a biophysical model: Biomechanics

Modeling plant plasticity from a biophysical model: Biomecha...

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12th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry, VRCAI 2013

作者： Wang, H.Y. Kang, M.Z. Hua, J. Wang, X.J. State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences China National Laboratory for Pattern Recognition Institute of Automation Chinese Academy of Sciences China

ISBN: (纸本)9781450325905

A mechanical effect is one of the important reasons for plant diversity, whose phenotype is crooked branch. Parametric curve equation, or skeleton extraction from image or video, or interactive design is often used to simulate branch bending. These methods generally could not dynamically demonstrate the process of deformation caused by stress. Moreover, they seldom consider biophysical behaviors. In this paper, we integrated Bio-mechanical Model with Functional Structural Plant Model (FSPM), specifically GreenLab model, both of which are biologically-based methods. The combined model is able to simulate the morphological changes of dynamically developing plants constrained by external loads, such as gravity and wind. It could also mimic tropism, which is associated with maturation strains of reaction wood. Feedback between FSPM and Bio-mechanical Model is constructed by linking the bud break strategy to the architecture. Using the models based on the botanical and biological knowledge, we could generate plausible plants in accordance with reality. Meanwhile this study lays a good foundation for studying the optimization of plant's growth behaviors when considering biomechanics. © 2013 ACM.

关键词： Biomechanics

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Comparison of several filtering methods for linear multi-agent systems with local unknown parametric couplings

Comparison of several filtering methods for linear multi-age...

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3rd IFAC Conference on Intelligent control and Automation Science, ICONS 2013

作者： Lv, Yini Ma, Hongbin Yang, Chenguang Fu, Mengyin Key Laboratory of Intelligent Control and Decision of Complex Systems Beijing Institute of Technology Beijing 100081 China School of Computing and Mathematics Plymouth University United Kingdom

ISBN: (纸本)9783902823458

In this paper, several filtering methods for a class of discrete-time stochastic linear time-varying multi-agent systems with local coupling uncertainties have been investigated. Every agent can only observe its own measurements (outputs) and its neighbor agents' outputs while the states are invisible to any agent because of communication limitations existing in the considered multi-agent system. Because of the information constraints, without knowing the coupling gains of the local interactions, it is not easy for each agent to estimate its states by traditional Kalman filter or other state observers. Noting of the existence of coupling uncertainties in many practical applications, this paper introduces one general framework of decentralized filtering problem of multi-agent systems. For the considered system, based on the key idea of state augmentation and the certainty-equivalence principle borrowed from principles in adaptive control, we introduce several filtering methods to resolve the fundamental problem considered in this paper. By conducting extensive simulations, the consuming time and estimation errors of every method are compared for one typical example, which suggests which method is more precise and faster. Copyright © 2013 IFAC.

关键词： Kalman filters

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A collision-free motion planning method for a redundant manipulator with a constrained task

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Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) 2013年第SUPPL.2期44卷 98-103页

作者： Xu, Longfei Li, Jun Gan, Yahui Dai, Xianzhong Sun, Wei Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Southeast University Nanjing 210096 China

A self-motion planning method for a redundant manipulator subject to the primary task constraint was proposed based on random generation of joint configurations and depth-first search. Exploiting the self-motion property of a redundant manipulator, a random configuration generation algorithm of a manipulator configuration was proposed for solving a set of joint configurations corresponding to a given end-effector pose and a depth-first search strategy was designed to find a collision-free configuration from the configuration set generated at random. By repeating the process for every pose from the initial to the end one in the task, a collision-free joint path can be obtained eventually. Taking a redundant manipulator of MOTOMAN VA1400 as an example, a simulation study was carried out. The result shows that the method presented is effective.

关键词： Redundant manipulators

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Genetic algorithm for solving a new multiple traveling salesman problem with partially overlapped domains

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Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) 2013年第SUPPL.1期44卷 69-74页

作者： Sun, Qirui Li, Jun Ding, Jian Dai, Xianzhong Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Southeast University Nanjing 210096 China

From the scheduling problem of dual-bridge water-jet cutting system, a new multiple traveling salesman problem called overlapped multiple traveling salesman problem (OMTSP) was extracted and purified, a method was proposed based on a genetic algorithm. The algorithm provides a double chromosomes of city and salesman encoding solution, and designs appropriate crossover and mutation operators. The results show that the algorithm enjoys rapid converge and can achieve a good solution of OMTSP.

关键词： Traveling salesman problem

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A route planning algorithm based on subway passenger routes choice behavior analysis

A route planning algorithm based on subway passenger routes ...

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2nd International Conference on Transportation Information and Safety: Improving Multimodal Transportation systems - Information, Safety, and Integration, ICTIS 2013

作者： Zhang, Yongsheng Yao, Enjian Yang, Yang State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Beijing China MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology Beijing Jiaotong University Beijing 100044 China

ISBN: (纸本)9780784413036

With the rapid development of city subway systems, subway networks become more complex and subway route planning services becomes necessary. Conventional route planning algorithms are based on the least travel time rule. However, a survey illustrates that travel time is not the only influential factor in route choice behavior. Thus, it is necessary to establish a new route planning algorithm based on the greatest generalized cost which can reflect real route choice preference with consideration of multiple influencing factors. First, a route choice model is established using questionnaire data collected in the Beijing Subway to analyze route choice behavior based on the discrete choice theory. Factors such as travel time, transfer time, and number of transfers are included in the utility function, but ticket price is excluded because of the flat-fare system of the Beijing Subway. Second, a new route planning algorithm is proposed. The optimal route found by the Dijkstra Algorithm with the greatest utility value, and another route with the least travel time are provided to passengers. Finally, the proposed route planning algorithm is compared with the conventional one. The results show that the former is more consistent with the real situation. © 2013 American Society of Civil Engineers.

关键词： Travel time

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Application of soft magnetic composite material in the field of electrical machines

Application of soft magnetic composite material in the field...

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2013 International Conference on Vehicle and Mechanical Engineering and Information Technology, VMEIT 2013

作者： Li, Xiao Bei Zhao, Jing Chen, Zhen School of Automation Beijing Institute of Technology Beijing 100081 China Key laboratory for Intelligent Control and Decision of Complex Systems Beijing Institute of Technology Beijing 10008 China

ISBN: (纸本)9783037858202

The property of the soft magnetic composite (SMC) material is introduced. Take the traditional material used for electric machine, i.e. the silicon steel lamination, as the reference, this paper summarizes the application advantages of SMC in the typical electric machine, such as tubular permanent-magnet liner machine, high-speed permanent-magnet machine, claw-pole machine, axial flux permanent-magnet machine and radial flux permanent-magnet machine. SMC material has much applied potential in the field of electric machine. © (2013) Trans Tech Publications, Switzerland.

关键词： Electric machinery

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