检索结果-内蒙古大学图书馆

IEEE Conference on Decision and control

作者： Yuji Igarashi Takeshi Hatanaka Masayuki Fujita Mark W. Spong The Department of Mechanical and Control Engineering Tokyo Institute of Technology Tokyo Japan The Coordinated Science Laboratory and Department of Electrical and Computer Engineering University of Illinois Urbana-Champaign Urbana IL USA

ISBN: (纸本)9781424431236

This paper addresses passivity-based output synchronization and a collision avoidance problem of rigid bodies in the special Euclidean group SE(3) under the assumption that the rigid bodies exchange information over weighted digraphs. We first develop a passivity-based distributed velocity input law to achieve output synchronization. Using the notion of algebraic connectivity, we then establish a connection between the speed of convergence and the structure of the interconnection graph in SE(3). We also prove output synchronization in the presence of temporary communication failures. We next develop a flocking algorithm by modifying the present velocity input so that it embodies cohesion, separation and alignment rules introduced by Reynolds. Finally, we demonstrate the effectiveness of the present input through numerical simulations.

关键词： Convergence Motion control Communication system control Collision avoidance control systems Numerical simulation Robot sensing systems Robot kinematics Robot control Satellites

来源：评论

学校读者我要写书评

暂无评论

Adaptive wavelet backstepping control for electro-hydraulic servo systems

引用

Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology 2008年第5期28卷 405-409页

作者： Qiao, Ji-Hong Shi, Bing Dai, Ya-Ping Wang, Hong-Yan Department of Automatic Control School of Information Science and Technology Beijing Institute of Technology Beijing 100081 China College of Information Engineering Beijing Technology and Business University Beijing 100037 China College of Math and Computer Dali University Dali 671003 China Department of Information Engineering Academy of Armored Forces Engineering of PLA Beijing 100072 China

Adaptive an wavelet backstepping control (WARBC) systems is proposed for electro-hydraulic servo systems. Two wavelet neural networks are used to approach the arbitrary model uncertainties of electro-hydraulic servo system, and all their weights are trained online. Novel update and control laws are proposed to guarantee that all the signals in the closed-loop control system are uniformly ultimately bounded (UUB) in a Lyapunov sense. As a result, the aim of electro-hydraulic servo system's tracking control can be achieved. In addition, a robust compensator is designed to improve the tracking performance. Finally, a computer simulation example is presented to illustrate the effectiveness and applicability of the suggested proposal.

关键词： Servomechanisms

来源：评论

学校读者我要写书评

暂无评论

Physical-Model-Based control of a Piezoelectric Tube Scanner

引用

IFAC Proceedings Volumes 2008年第2期41卷 11811-11816页

作者： P.J. Gawthrop B. Bhikkaji S.O.R. Moheimani Centre for Systems and Control and Department of Mechanical Engineering University of Glasgow GLASGOW. G12 8QQ Scotland School of Electrical Engineering and Computer Science The University of Newcastle Newcastle NSW 2308 Australia

A piezoelectric tube is shown to have linear, but non-minimum phase dynamics. The main impediment to the actuation of this piezoelectric tube is the presence of a low-frequency resonant mode which causes mechanical vibrations. A physical-model-based control method is extended to non-minimum phase systems in general and successfully applied to damp the resonant mode; leading to a vibration-free actuation of the piezoelectric tube.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Research and simulation of parallel current-mode controlled buck converter

Research and simulation of parallel current-mode controlled ...

引用

IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Xiaodong Liu Jiaojiao Deng Yan-Fei Liu Pengyi Yang Key Laboratory of Power Electronics & Motion Control Anhui University of Science and Technology China Department of Electrical and Computer Engineering Queen''s University Canada

This paper introduces parallel current-mode control algorithm for DC-DC converters. The remarkable advantage of this new control is that it is derived directly in a discrete form and optimized for digital implementation. The duty cycle consists of two terms: voltage term and current term. They are calculated directly by the reference current, sensed inductor current, input voltage and output voltage, and only need three additions and two multiplications. Due to this, the algorithm is simple for digital implementation. At the same time, the proposed control method can also obtain good dynamic performance under load and input voltage variations. The assumptions are verified by simulations on synchronous buck converter for this new strategy using PSIM. Meanwhile, conventional peak current-mode control is presented and simulated as comparison. The proposed method can be applied to other topology such as boost, Buck-Boost, etc.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Modeling and simulation of Parallel Current Mode controlled boost converter

Modeling and simulation of Parallel Current Mode controlled ...

引用

IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Xiaodong Liu Pengyi Yang Yan-Fei Liu Jiaojiao Deng Key Laboratory of Power Electronics & Motion Control Anhui University of Science and Technology China Department of Electrical and Computer Engineering Queen''s University Canada

In this paper, Parallel Current Mode control method for Boost DC-DC converter is proposed. The parallel current mode control strategy is composed of two parallel terms: one is voltage term, the other is current term. They are calculated based on the input voltage, reference output voltage, inductor current and reference inductor current. The Parallel Current Mode control method essentially distinguishes itself from the conventional current mode control method with two regulators, one for voltage regulation and the other for current regulation. Under the conventional Voltage Mode control method and the new control method, small-signal models of Boost DC-DC converter are derived. The simulation result (based on the transfer functions) using Matlab/Simulink is compared with the simulation result based on the circuit simulation model, using PSIM. Results both in Matlab/Simulink environment and in PSIM environment are in good agreement, confirming the validity of the small-signal model. Both the small-signal analysis and simulation results demonstrate that Parallel Current Mode control has superior performance as compared with Voltage Mode control.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Dynamic range expansion amplifier to measure the slow wave signal from the intestine by telemetry capsule

Dynamic range expansion amplifier to measure the slow wave s...

引用

IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics (BioRob)

作者： S. H. Woo T. W. Kim M. U. D. Zia Q. Wei E. U. Chung M. W. Kim J. W. Lee C. H. Won J. H. Cho School of Electronic Engineering and Computer Science Kyungpook National University College of Veterinary Medicine Department of physiology Kyungpook National University Medical & Biological Engineering Kyungpook National University Department of Computer Control & Electrical Engineering Kyung Hee University

Recently, various capsule endoscope systems have been developed, and it is possible measure various bio signal from the human to diagnosis a disease. There have been numerous studies of the myoelectric activity in a stomach, but only a few studies of the small intestines, because, there was no way to measure the signal by non-invasive method. Therefore, it is necessary to research myoelectric measurable telemetry capsule. In this paper, main focuses are implement swallowable telemetry capsule, and enough working time for future clinical experiments. The capsule use dynamic range expansion technique to reduce size of the amplifier, and reduce average power consumption as 3.6 mW; therefore, the capsule can use small batteries, that could be implemented as swallowable size. The capsule is verified by in-vitro experiment, and it amplifies the signal properly.

关键词： Dynamic range Intestines Telemetry Endoscopes Humans Diseases Stomach Battery charge measurement Power amplifiers Energy consumption

来源：评论

学校读者我要写书评

暂无评论

Multiple Heterogeneous Ant Colonies with Information Exchange

Multiple Heterogeneous Ant Colonies with Information Exchang...

引用

Congress on Evolutionary Computation

作者： Arash Arami Bijan Rahmizadeh Rofoee Caro Lucas Control and Intelligent Processing Center of Excellence (CIPCE) school of Electrical and Computer Engineering University of Tehran Tehran Iran Electrical and Computer Engineering Department Tabriz University Tabriz Iran School of Cognitive Science Institute of Studies in Theoretical Physics and Mathematics Tehran Iran CIPCE school of Electrical and Computer Engineering University of Tehran Tehran Iran

The method of multiple heterogeneous ant colonies with information exchange (MHACIE) is presented in this paper with emphasis on the speed of finding the optimal solution and the corresponding computational complexity. The proposed method which is inspired by biology and psychology has a structure composed of several ant colonies. These colonies participate in solving problems in a concurrently manner and also exchange information with each other in communicational steps. Each ant colony is considered as an intelligent agent with behavioral traits. These behavioral traits play a key role in the solving procedure, in interrelation circumstances and in installation of relations. Faster solutions have been achieved using different employments of agents in the algorithm structure. Experimental results show the superiority of Multiple heterogeneous ant colonies algorithm in comparison to the standard ant colony system (ACS) and particle swarm optimization (PSO) algorithms on different benchmarks. A dynamic, control engineering benchmark is also provided in order to gain a more complete evaluation of the proposed algorithm.

关键词： Benchmark testing Evolution (biology) Optimization Heuristic algorithms Evolutionary computation Electronic mail Educational institutions

来源：评论

学校读者我要写书评

暂无评论

A state feedback h control design for switched fuzzy systems

A state feedback h control design for switched fuzzy systems

引用

2008 4th International IEEE Conference Intelligent Systems, IS 2008

作者： Yang, Hong Dimirovski, Georgi M. Zhao, Jun Northeastern University of Shenyang Control Science Institute School of Information Science and Engineering Shenyang Liaoning 110004 China Dogus University of Istanbul Computer Eng. Department Faculty of Engineering Acibadem Zeamet Sk. No. 21 Kadikoy TR-34722 Istanbul Turkey SS Cyril and Methodius University of Skopje ASE Institute Faculty of Electrical Engineering MK-1000 Skopje Macedonia

ISBN: (纸本)9781424417391

A model of the switched fuzzy systems whose subsystems are fuzzy systems is presented first. Then the problem of state feedback robust H8 control of this class of systems is solved using switching technique and single Lyapunov function. A switching strategy of the switched fuzzy system with continuous controlled input is developed. The main condition is given in form of convex combination linear matrix inequalities, which are solvable using LMI Toolbox. The elaborated illustrative but real-world example and the respective simulation experiments demonstrate the effectiveness of the proposed method. © 2008 IEEE.

关键词： Fuzzy systems

来源：评论

学校读者我要写书评

暂无评论

Conflict resolution for collaborative design based on rough set theory

Conflict resolution for collaborative design based on rough ...

引用

International Conference on computer Supported Cooperative Work in Design

作者： Jun Ma Tian-Yuan Xiao Jian-Chao Zeng Ma Hao Department of Automation National CIMS Engineering Research Center Tsinghua University Beijing China School of Computer Science and Technology Taiyuan University of Science and Technology Taiyuan China North Automatic Control Technology Institute Taiyuan China

ISBN: (纸本)9781424416509

Due to the design knowledge discrepancy during collaborative design, conflicts can be revealed from the process of collaborative design decision. A critical element of collaborative design would be conflict resolution. The conflict resolution is correlative with both of the knowledge granulation and specific method provided. In this paper, granularity is used to describe rules acquainted based on the concept of rough degree. In this condition, A feasible distance formula between different rules is constructed according to the requirement of describing the distance between different rules and the definition of attribute significance in information system with rough theory, in which the operator of attribute importance is introduced, and then traditional conflict resolutions are analyzed. As a result, the concept of rule set evolution is put forward, and the instance is introduced to explain the efficiency of new method.

关键词： Collaboration Set theory Collaborative work Process design Design methodology Product design Phase detection Knowledge management Space technology Design automation

来源：评论

学校读者我要写书评

暂无评论

VoIP over IEEE 802.11 wireless networks: Experimental analysis of interference effects

VoIP over IEEE 802.11 wireless networks: Experimental analys...

引用

IEEE International Symposium on Electromagnetic Compatibility - EMC Europe

作者： Leopoldo Angrisani Aniello Napolitano Alessandro Sona Department of Computer Science and Control Systems University of Naples Federico II Naples Italy Department of Electrical Engineering University of Naples Federico II Naples Italy Department of Information Engineering University of Padova Padova Italy

The interference effects on voice over Internet protocol (VoIP) applications over wireless local area networks (WLANs) are here dealt with. In particular, attention is paid to the IEEE 802.11 g standard, with Bluetooth signals, additive white Gaussian noise (AWGN) and competitive data traffic acting as interferer. The analysis is conducted experimentally following a cross-layer approach and through the deployment of a proper testbed within a semi-anechoic chamber. The purpose is to investigate on the effects of some common types of interference on a WLAN supporting VoIP applications, and to deduce from the experiments valuable hints for improving the setup of a WLAN in the presence of interference. Cross-layer measurements are performed at network/transport, physical and application layer.

关键词： Wireless networks Interference Wireless LAN AWGN Internet telephony Bluetooth Additive white noise Telecommunication traffic Testing Performance evaluation

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：