检索结果-内蒙古大学图书馆

Erratum to “An MEG-based brain–computer interface (BCI)” [NeuroImage 36 (2007) 581–593]

NeuroImage 2007年第4期38卷 763-763页

作者： Jürgen Mellinger Gerwin Schalk Christoph Braun Hubert Preissl Wolfgang Rosenstiel Niels Birbaumer Andrea Kübler Institute of Medical Psychology and Behavioral Neurobiology MEG Center University of Tübingen Otfried-Müller-Str. 47 72076 Tübingen Germany Laboratory of Nervous System Disorders New York State Department of Health Albany New York USA Electrical Computer and Systems Engineering Department Rensselaer Polytechnic Institute Troy New York USA Department of Obstetrics and Gynecology University of Arkansas for Medical Sciences Little Rock Arkansas USA Department of Computer Engineering University of Tübingen Tübingen Germany Center for Cognitive Neuroscience University of Trento Trento Italy

来源：评论

学校读者我要写书评

暂无评论

The Control Method of A Virtual Contact Feeling system

The Control Method of A Virtual Contact Feeling System

引用

SICE Annual Conference

作者： Takashi Yoshimura Ryuichi Oguro Department of System Innovation and Informatics Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka Japan

In this paper, we propose a new system that conveys the virtual contact feeling to people. Virtually, we make the real contact feeling that they touch the tip of their finger to the object. As the friction exits between the tip of their finger and the object, we make the friction, and will be able to consummate the virtual contact feeling. Nowadays, only the visual information of the object is conveyed to the user on the screen on Web. By this technique, not only the visual information of the object but also the real contact feeling will be able to be conveyed to the user in the near future. And, we think that even use as a training system for the medical treatment and use as the braille system which even visual disability people can use the Internet. The real contact feeling of the object needs comparatively high frequency. Then, first of all, we focus the real contact feeling that is made from low frequency. At present, we study to make the real contact feeling without friction

关键词： Control systems Friction Fingers Corrugated surfaces Springs Force control Rough surfaces Surface roughness Frequency Shafts

来源：评论

学校读者我要写书评

暂无评论

Cooperation Enforcement in Autonomous MANETs under Noise and Imperfect Observation

Cooperation Enforcement in Autonomous MANETs under Noise and...

引用

IEEE Communications Society Conference on Sensor and Ad Hoc Communications and Networks (SECON)

作者： Zhu Ji Wei Yu K.J. Ray Liu University System of Maryland Adelphi MD US Electrical and Computer Engineering Department Institute for Systems Research University of Maryland College Park MD USA

In autonomous mobile ad hoc networks (MANET) where each user is its own authority, the issue of cooperation enforcement must be solved first to enable network functioning, such as packet forwarding, which becomes very difficult under noise and imperfect monitoring. In this paper, we focus on cooperation enforcement in autonomous mobile ad hoc networks under noise and imperfect observation and study the basic packet-forwarding function using the repeated game models with imperfect information. A belief-based packet forwarding framework is proposed to obtain cooperation-enforcement strategies solely based on each node's own past actions and its private imperfect observation of other nodes' information. The simulation results illustrate that the proposed belief-based packet forwarding approach can enforce the cooperation with only a small performance degradation compared with the unconditionally cooperative outcomes when noise and imperfect observation exist

关键词： Ad hoc networks Mobile ad hoc networks Monitoring Game theory Peer to peer computing Hardware Communications Society computer networks Degradation Sprites (computer)

来源：评论

学校读者我要写书评

暂无评论

COS: A Configurable OS for Embedded SoC systems

COS: A Configurable OS for Embedded SoC Systems

引用

IEEE International Conference on Embedded and Real-Time Computing systems and Applications (RTCSA)

作者： Hsin-hung Lin Chih-Wen Hsueh Real-Time Systems Laboratory Department of Computer Science and Information Engineering National Chung Cheng University Chiayi Taiwan Embedded System and Wireless Networking Laboratory Graduate Institute of Networking and Multimedia and Department of Computer Science and Information Engineering National Taiwan University Taipei Taiwan

As the increasing of system performance and computing power, embedded systems are more complicated and interactive. Therefore, operating system (OS) plays a more important role in embedded systems to utilize various hardware and software resources. However, no OS can meet all requirements of various embedded systems. Due to the advance of reconfigurable processors, system requirements can be more dynamic. Embedded OS has becoming more critical in the development of embedded systems and thus there is a strong need of configurable embedded OS to better and faster build up the target system. In this paper, we propose a configurable OS, called COS, based on SOA (service-oriented architecture) for embedded SoC (system on a chip) systems to build an application specific OS according to the system requirements. COS can be easily configured to better utilize the resources of the target embedded platform and have better support to the embedded application. Moreover, the COS can easily extend new features or functionalities of other OSes and even be adapted to the designs of other OSes. We implement COS on an ARM platform to prove its configurability and also evaluate its overhead. We believe that COS can be configured to meet the various requirements in embedded SoC systems and help to speed up the embedded system development process

关键词： Embedded system Kernel system-on-a-chip Service oriented architecture Operating systems Real time systems Laboratories computer science Power engineering and energy system performance

来源：评论

学校读者我要写书评

暂无评论

Development of an Active Flexible Cable by Ciliary Vibration Drive for Scope Camera

Development of an Active Flexible Cable by Ciliary Vibration...

引用

2006 IEEE/RSJ International Conference on Intelligent Robots and systems

作者： Kazuya Isaki Akira Niitsuma Masashi Konyo Fumiaki Takemura Satoshi Tadokoro Graduate School of Information Sciences University of Tohoku Sendai Miyagi Japan Department of Computer Systems Engineering Kobe University Kobe Hyogo Japan International Rescue System Institute Kobe Hyogo Japan

Proposed new actuation mechanism realizes active or semi-active mobility for flexible long cables such as fiberscopes and scope cameras. A ciliary vibration mechanism was developed using flexible ciliary tapes that can be attached easily to existing cables. Driving characteristics of the active cables were confirmed through experiments and numerical analyses. Finally, the actuation mechanism was applied for an advanced scope camera that can reduce friction with obstacles and avoid stuck or tangled cables

关键词： Cables Orbital robotics Robot vision systems Smart cameras Numerical analysis Friction Mobile robots Intelligent robots Drives systems engineering and theory

来源：评论

学校读者我要写书评

暂无评论

Research on a Throwing Multidimensional Force Sensing system for Advanced Training of Shot-Put Athletes

Research on a Throwing Multidimensional Force Sensing System...

引用

International Conference on Information and Automation (ICIA)

作者： Zhen Gao Quanjun Song Ming Liu Jianhe Lei Yong Yu Yunjian Ge State Key laboratory of Robot Sensing System Institute of Intelligent Machines Chinese Academy and Sciences Hefei Anhui China Department of Electrical and Computer Systems Engineering Monash University Melbourne VIC Australia

In this paper, we develop a novel digital-shot system for sensing the throwing force information of shot-put athletes in real time. The digital-shot has been designed and manufactured with the same external dimensions and weight as the normal shot for open females. The three axes integrated accelerometer, as a crucial device in the force sensing system, can acquire the kinetics data along three orthogonal directions with reasonably high accuracy. By using the method of wavelet transformation, the characteristics of acceleration signals during the shot-put period can be extracted. Artificial neural network is adopted to recognise the movement pattern in different phases of shot throwing. For supplying more effective training instruction, with the help of six axes ground reaction force measuring apparatus, high-speed photography and surface electromyographic signal remote measuring device etc, an integrated platform of shot-put athlete biomechanical information acquisition is constructed. Based on the fusion of multi-targets and multi-parameters information, the shot-put athletes coaching system is proposed, which not only can supply constructive guidance for athletes to improve their skills, but also provide a new research platform of motion human modeling.

关键词： Multidimensional systems Force measurement Real time systems Manufacturing Accelerometers Kinetic theory Acceleration Data mining Artificial neural networks Pattern recognition

来源：评论

学校读者我要写书评

暂无评论

A Study of real-time EMG-driven Arm Wrestling Robot

A Study of real-time EMG-driven Arm Wrestling Robot

引用

IEEE International Conference on Robotics and Biomimetics

作者： Quanjun Song Huanghuan Shen Shuangwei Xie Zhen Gao Ming Liu Yu Yong Yunjian Ge Department of Automation University of Science and Technology Hefei Anhui China Laboratory of Robot Sensing System Institute ofIntelligent Machines Chinese Academy and Sciences Hefei Anhui China Department of Electrical and Computer Systems Engineering Monash University Melbourne VIC Australia

An EMG-driven arm wrestling robot (AWR) is being developed in our laboratories for the purposes of studying neuromuscular control of arm movements. The AWR arm have 2-DOF, integrated with mechanical arm, elbow/wrist force sensors, servo motor, encoder, 3-D MEMS accelerometer, and USB camera, is used to estimate tension developed by individual muscles based on recorded electromyograms (EMGs). The surface electromyographic signal form the upper limb is sampled from a real player in same conditions. By using the method of wavelet packet transformation (WPT) and auto regressive model (AR), the characteristics of EMG signals can be extracted. Artificial neural network is adopted to estimate the elbow joint torque. The effectiveness of the humanoid algorithm using torque control estimated via WRT and neural network is confirmed by experiments. The purpose of this paper is to describe the design objectives, fundamental components and implementation of our real-time, EMG-driven AWR arm.

关键词： Robot sensing systems Elbow Electromyography Artificial neural networks Laboratories Neuromuscular Wrist Force sensors Servomechanisms Servomotors

来源：评论

学校读者我要写书评

暂无评论

Development of a Sensor system for Outdoor Service Robot

Development of a Sensor System for Outdoor Service Robot

引用

SICE Annual Conference

作者： Takeshi Nishida Yuji Takemura Yasuhiro Fuchikawa Shuichi Kurogi Shuji Ito Masayuki Obata Norio Hiratsuka Hidekazu Miyagawa Yasuhiro Watanabe Toshinori Suehiro Yoshinori Kawamura Fujio Ohkawa Faculty of Engineering Kyushu Institute of Technology Fukuoka Japan YASKAWA INFORMATION SYSTEMS Corporation Fukuoka Japan Mechanics and Electronics Research Institute Fukuoka Industrial Technology Center Fukuoka Japan Fukuoka Industry Science and Technology Foundation Fukuoka Japan FAIS Robotics Research Institute Fukuoka Japan Faculty of Computer Science and System Engineering Kyushu Institute of Technology Fukuoka Japan

The outdoor service robot, which we call OSR-02, is presently under development intended for cleaning up urban areas by means of collecting discarded trash such as plastic bottles, cans, plastic bags and so on. Additionally, we have developed a novel sensor system for the achievement of the task by this robot; it is constructed with LRF (laser rangefinder), two cameras, and three stepping motors. In this paper, we describe the sensor system and its applications

关键词： Sensor systems Service robots Cameras Robot vision systems Robot sensing systems Robot kinematics computer industry Electronics industry Plastics industry Cleaning

来源：评论

学校读者我要写书评

暂无评论

Design of Parameterized State Observers and Controllers for a Class of Nonlinear Continuous-Time systems

Design of Parameterized State Observers and Controllers for ...

引用

IEEE Conference on Decision and Control

作者： A. Alessandri C. Cervellera D. Maccio M. Sanguineti Department of Production Engineering Thermoenergetics and Mathematical Models (DIPTEM) University of Genoa Genoa Italy Institute of Intelligent Systems for Automation (ISSIA-CNR) National Research Council Genoa Italy Department of Communications Computer and System Sciences (DIST) University of Genoa Genoa Italy

ISBN: (纸本)1424401704

The design of observers and controllers for a class of continuous-time, nonlinear dynamic systems with Lipschitz nonlinearities is addressed. Observers and controllers that depend on a linear gain and a parameterized function implemented by a feedforward neural network are considered. The gain and the weights of the neural network are optimized in such way to ensure the convergence of the estimation error for the observer and the stability of the closed-loop system for the controller, respectively. This is achieved by constraining the derivative of a quadratic Lyapunov function to be negative definite on a grid of points, penalizing the constraints that are not satisfied. It is shown that suitable sampling techniques such as low-discrepancy sequences, commonly employed in quasi-Monte Carlo methods for high-dimensional integration, allow one to reduce the computational burden required to optimize the network parameters. Simulations results are presented to illustrate the effectiveness of the method

关键词： Nonlinear control systems Control systems Neural networks Control nonlinearities Observers Gain Feedforward neural networks Convergence Estimation error Stability

来源：评论

学校读者我要写书评

暂无评论

Identification of freeway macroscopic models using information from mobile phones

Identification of freeway macroscopic models using informati...

引用

American Control Conference (ACC)

作者： A. Alessandri R. Bolla A.F. Grassia M. Repetto Department of Production Engineering Thermoenergetics and Mathematical Models DIPTEM University of Genoa Genoa Italy Department of Communications Computer and System Sciences DIST-University of Genoa Genoa Italy Institute of Intelligent Systems for Automation ISSIA-CNR National Research Council of Italy Genoa Italy

A method for the identification of a freeway macroscopic model is presented. The model is based on the idea of dividing a freeway trunk in sections covered by the cells of the wireless network and associated with state variables describing density of vehicles, mean velocity, and percentage of active mobile phones. Using the density and hand-off measurements from the cellular network, the parameters of such model are identified via an algorithm based on stochastic approximation. Successful simulation results are reported and discussed

关键词： Traffic control Mobile handsets Vehicle dynamics Stochastic processes Cost function Wireless networks Approximation algorithms Detectors Base stations Nonlinear equations

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：