检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

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

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

128 篇 会议
20 篇 期刊文献

馆藏范围

148 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

61 篇 工学
- 24 篇 控制科学与工程
- 21 篇 机械工程
- 20 篇 软件工程
- 16 篇 计算机科学与技术...
- 13 篇 仪器科学与技术
- 11 篇 信息与通信工程
- 5 篇 光学工程
- 5 篇 电子科学与技术（可...
- 5 篇 生物医学工程（可授...
- 4 篇 电气工程
- 4 篇 交通运输工程
- 2 篇 力学（可授工学、理...
- 2 篇 建筑学
- 2 篇 航空宇航科学与技...
- 2 篇 生物工程
- 1 篇 冶金工程
- 1 篇 动力工程及工程热...
- 1 篇 农业工程
- 1 篇 公安技术
29 篇 理学
- 15 篇 数学
- 12 篇 系统科学
- 8 篇 物理学
- 3 篇 生物学
- 3 篇 统计学（可授理学、...
6 篇 管理学
- 4 篇 管理科学与工程(可...
- 2 篇 图书情报与档案管...
4 篇 医学
- 4 篇 临床医学
- 1 篇 基础医学(可授医学...
- 1 篇 药学(可授医学、理...
1 篇 农学
- 1 篇 作物学
1 篇 艺术学

主题

24 篇 mobile robots
18 篇 control systems
16 篇 robot sensing sy...
15 篇 cameras
14 篇 navigation
11 篇 humans
10 篇 vehicle dynamics
10 篇 convergence
9 篇 computational mo...
8 篇 orbital robotics
8 篇 remotely operate...
8 篇 motion control
8 篇 robot vision sys...
7 篇 robot control
7 篇 predictive model...
7 篇 surveillance
7 篇 computer vision
7 篇 robustness
6 篇 sensor systems
6 篇 head

机构

10 篇 department of el...
7 篇 institute of sys...
6 篇 isr-institute of...
5 篇 department of el...
4 篇 isr-institute of...
4 篇 institute for sy...
4 篇 dept. of electr....
4 篇 department of el...
3 篇 isr-institute of...
3 篇 department elect...
3 篇 department of me...
3 篇 institute for sy...
3 篇 institute of sys...
2 篇 institute for sy...
2 篇 pólo ii pinhal d...
2 篇 institute of sys...
2 篇 program in elect...
2 篇 isr - institute ...
2 篇 institute for sy...
2 篇 isr-institute of...

作者

15 篇 a.t. de almeida
12 篇 r. araujo
12 篇 rui araújo
11 篇 a. pascoal
11 篇 j. batista
11 篇 p. peixoto
11 篇 h. araujo
10 篇 jorge batista
9 篇 joão xavier
9 篇 bruno sinopoli
7 篇 u. nunes
6 篇 soummya kar
6 篇 a. pedro aguiar
6 篇 francisco souza
6 篇 nunes urbano
5 篇 carlos silvestre
5 篇 brian swenson
5 篇 urbano nunes
5 篇 jérôme mendes
5 篇 tiago matias

语言

141 篇 英文
4 篇 中文
3 篇 其他

检索条件"机构=Institute for Systems and Robotics ISR and Department Electrical Engineering and Computers"

共 148 条记录，以下是91-100 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

An Outdoor Guidepath Navigation System for AMRs Based on Robust Detection of Magnetic Markers

An Outdoor Guidepath Navigation System for AMRs Based on Rob...

引用

12th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA 2007), vol.2

作者： Ana C. Lopes Fernando Moita Urbano Nunes Razvan Solea ISR-Institute of Systems and Robotics Department of Electrical and Computer Engineering University of Coimbra Coimbra Portugal

This paper presents an outdoor guidepath navigation system for autonomous mobile robots (AMR) that use permanent magnetic markers embedded in the ground. The odometric data provided by the wheel encoders is fused with the data from magnetic markers. The extended Kalman filter (EKF) was chosen for the fusion process. The AMR is equipped with a magnetic sensing ruler (MSR) developed at isr-UC that is able to perform a robust detection of magnetic markers. The detection is based on a 3-D algorithm that includes longitudinal-fitting detection (LFD), and cross-fitting detection (CFD). Both, the LFD and the CFD are based on the least squares fitting (LSF) of the measurement data with the 3-D model of the vertical magnetic field. The experimental results with Robchair (intelligent wheelchair being developed at isr-UC) primarily show that the detection system is robust, since it is able to detect true magnetic markers, and to eliminate noisy magnetic distortions and false markers. The design, and implementation of the navigation algorithm in the Robchair were carried out, and results are presented.

关键词： Navigation Robustness Magnetic separation Computational fluid dynamics Magnetic field measurement Mobile robots Wheels Least squares methods Distortion measurement Wheelchairs

来源：评论

学校读者我要写书评

暂无评论

A dual-stage robust vehicle detection and tracking for real-time traffic monitoring

A dual-stage robust vehicle detection and tracking for real-...

引用

ITSC 2006: 2006 IEEE Intelligent Transportation systems Conference

作者： Batista, Jorge Peixoto, Paulo Fernandes, Catarina Ribeiro, Miguel ISR-Institute of Systems and Robotics Department of Electrical Engineering and Computers University of Coimbra Coimbra Portugal

ISBN: (纸本)1424400945

This paper addresses the important problem of detecting and tracking vehicles in outdoor dynamic scenes as part of a real-time traffic surveillance system. The proposed solution is based on a dual-stage approach, using a pixel-level stage to extract foreground object from background scenes and a block-level stage to detect and track vehicles. The pixel-level stage combines a multi-background modelling with a dynamic thresholding, using a low-scale quasi-connected-components as a first stage for image object grouping/cleaning. The block-level performs a 8×8 block-region analysis defining a block energy function that is used to label the blocks belonging to different vehicles and track them over a stack of images. This approach has proven to be very helpful for occlusion reasoning. The proposed solution has the ability to overcame some of the most difficult problem that arise in outdoor scenes such as illumination variations, shadow-casts and waving movement resulting from trees and camera vibration. The performance and robustness of the proposed algorithm is shown using real highway traffic monitoring situations. © 2006 IEEE.

关键词： Vehicle locating systems

来源：评论

学校读者我要写书评

暂无评论

A Dual-Stage Robust Vehicle Detection and Tracking for Real-Time Traffic Monitoring

A Dual-Stage Robust Vehicle Detection and Tracking for Real-...

引用

International Conference on Intelligent Transportation

作者： J. Batista P. Peixoto C. Fernandes M. Ribeiro Department of Electrical Engineering and Computers ISR-Institute of Systems and Robotics University of Coimbra Coimbra Portugal

This paper addresses the important problem of detecting and tracking vehicles in outdoor dynamic scenes as part of a real-time traffic surveillance system. The proposed solution is based on a dual-stage approach, using a pixel-level stage to extract foreground object from background scenes and a block-level stage to detect and track vehicles. The pixel-level stage combines a multi-background modelling with a dynamic thresholding, using a low-scale quasi-connected-components as a first stage for image object grouping/cleaning. The block-level performs a 8 times 8 block-region analysis defining a block energy function that is used to label the blocks belonging to different vehicles and track them over a stack of images. This approach has proven to be very helpful for occlusion reasoning. The proposed solution has the ability to overcome some of the most difficult problem that arise in outdoor scenes such as illumination variations, shadow-casts and waving movement resulting from trees and camera vibration. The performance and robustness of the proposed algorithm is shown using real highway traffic monitoring situations

关键词： Robustness Vehicle detection Monitoring Layout Vehicle dynamics Real time systems Traffic control Surveillance Object detection Pixel

来源：评论

学校读者我要写书评

暂无评论

Simultaneous Localization and Map Building by Integrating a Cache of Features

Simultaneous Localization and Map Building by Integrating a ...

引用

International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Jorge Costa Filipe Dias Rui Araujo ISR-Institute of Systems and Robotics Department of Electrical and Computer Engineering University of Coimbra Portugal

Localization is an important problem in autonomous mobile robots navigation. To solve this problem, robots must also be able to learn, maintain and update models of their environments. This paper describes a full implementation of a simultaneous localization and map building (SLAM) method. SLAM is the problem of an autonomous vehicle starting at an unknown position which then incrementally builds a world map and estimates the robot absolute pose according to the map. An extended Kalman filter (EKF) is used for estimation and data fusion. For perception, the method combines an adaptive break point detector, first and second order analysis, and the RANSAC algorithm for robust fitting of laser scan data in order to extract a model composed of line segments and their uncertainty. A dynamic cache is proposed and introduced in the world model in order to speedup the map search in the measurement prediction and feature matching phases of SLAM. Experimental results of simulation and real-robot experiments with a Nomad 200 are presented demonstrating the effectiveness of the SLAM methods and improvements attained with the cache of feature method.

关键词： Simultaneous localization and mapping Mobile robots Navigation Remotely operated vehicles Algorithm design and analysis Robustness Laser fusion Laser modes Data mining Vehicle dynamics

来源：评论

学校读者我要写书评

暂无评论

Path Generation, Path Following and Coordinated Control for TimeCritical Missions of Multiple UAVs

Path Generation, Path Following and Coordinated Control for ...

引用

American Control Conference (ACC)

作者： I. Kaminer O. Yakimenko A. Pascoal R. Ghabcheloo Department of Mechanical and Astronautical Engineering Naval Postgraduate School Monterrey CA USA Institute for Systems and Robotics ISR and Department Electrical Engineering and Computers Instituto Superior Técnico Lisboa Portugal

The paper proposes a solution to the problem of coordinated control of multiple unmanned air vehicle (UAV) to ensure collision-free maneuvers under strict spatial and temporal constraints. First, a set of feasible trajectories are generated for all UAVs using a new direct method of optimal control that takes into account rules for collision avoidance. A by-product of this step yields, for each vehicle, a spatial path to be followed together with a nominal desired speed profile. Each vehicle is then made to execute a pure path following maneuver in three-dimensional space by resorting to a novel 3D algorithm. Finally, the speed profile for each vehicle is adjusted to enforce the temporal constraints that must be met in order to coordinate the fleet of vehicles. Simulations illustrate the potential of the methodology developed

关键词： Unmanned aerial vehicles Robot kinematics Space vehicles Optimal control Collision avoidance Motion control Mobile robots Robot control Orbital robotics Graph theory

来源：评论

学校读者我要写书评

暂无评论

State Estimation of Continuous-Time systems with Implicit Outputs from Discrete Noisy Time-Delayed Measurements

State Estimation of Continuous-Time Systems with Implicit Ou...

引用

IEEE Conference on Decision and Control

作者： A. Pedro Aguiar Joao P. Hespanha ISR/IST Institute for Systems and Robotics Instituto Superior Technico Lisboa Portugal Department of Electrical and Computer Engineering University of California Santa Barbara CA USA

ISBN: (纸本)1424401704

We address the state estimation of a class of continuous-time systems with implicit outputs, whose measurements arrive at discrete-time instants, are time-delayed, noisy, and may not be complete. The estimation problem is formulated in the deterministic H infin filtering setting by computing the value of the state that minimizes the induced L 2 -gain from disturbances and noise to estimation error, while remaining compatible with the past observations. To avoid weighting the distant past as much as the present, a forgetting factor is also introduced. We show that, under appropriate observability assumptions, the optimal estimate converges globally asymptotically to the true value of the state in the absence of noise and disturbance. In the presence of noise, the estimate converges to a neighborhood of the true value of the state. The estimation of position and attitude of an autonomous vehicle using measurements from an inertial measurement unit (IMU) and a monocular charged-coupled-device (CCD) camera attached to the vehicle illustrates these results. In the context of this application, the estimator can deal directly with the usual problems associated with vision systems such as noise, latency and intermittency of observations

关键词： State estimation Remotely operated vehicles Mobile robots Filtering Estimation error Observability Current measurement Position measurement Measurement units Charge coupled devices

来源：评论

学校读者我要写书评

暂无评论

Coordinated path-following control of multiple underactuated autonomous vehicles in the presence of communication failures

Coordinated path-following control of multiple underactuated...

引用

IEEE Conference on Decision and Control

作者： Reza Ghabcheloo A. Pedro Aguiar Antonio Pascoal Carlos Silvestre Isaac Kaminer Joao Hespanha Department Electrical Engineering and Computers and the Institute for Systems and Robotics Instituto Superior Técnico Lisboa Portugal Department of Mechanical and Astronautical Engineering Naval Postgraduate School Monterrey CA USA Department of Electrical and Computer Engineering University of California Santa Barbara CA USA

ISBN: (纸本)1424401704;9781424401703

This paper addresses the problem of steering a group of underactuated autonomous vehicles along given spatial paths, while holding a desired inter-vehicle formation pattern. For a general class of vehicles moving in either two or three-dimensional space, we show how Lyapunov-based techniques and graph theory can be brought together to yield a decentralized control structure where the dynamics of the cooperating vehicles and the constraints imposed by the topology of the inter-vehicle communications network are explicitly taken into account. Path-following for each vehicle amounts to reducing an appropriately defined geometric error to a small neighborhood of the origin. Vehicle coordination is achieved by adjusting the speed of each vehicle along its path according to information on the positions of a subset of the other vehicles, as determined by the communications topology adopted. The system obtained by putting together the path-following and vehicle coordination strategies adopted takes a cascade form, where the former subsystem is input-to-state stable (ISS) with the error variables of the latter as inputs. Convergence and stability of the overall system are proved formally. The results are also extended to solve the problem of temporary communication failures. Using the concept of "brief instabilities" we show that for a given maximum failure rate, the coordinated path following system is stable and the errors converge to a small neighborhood of the origin. We illustrate our design procedure for underwater vehicles moving in three-dimensional space. Simulations results are presented and discussed

关键词： Communication system control Remotely operated vehicles Mobile robots Space vehicles Graph theory Distributed control Vehicle dynamics Constraint theory Network topology Communication networks

来源：评论

学校读者我要写书评

暂无评论

Tracking multiple moving objects for mobile robotics navigation

Tracking multiple moving objects for mobile robotics navigat...

引用

International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： J. Almeida A. Almeida R. Araujo ISR-Institute for Systems and Robotics Department of Electrical and Computer Engineering University of Coimbra Coimbra Portugal

For mobile vehicle navigation in dynamic environments it is desirable that robots have a model of the dynamic aspects of the world. In this paper we present a method for detection and tracking of multiple moving objects using sensor information. The method uses particle filters to estimate objects states, and sample based joint probabilistic data association filters to perform the assignment of features detected from sensor data to filters. A perception mechanism, based on occupancy grids, is presented to distinguish between mobile features and static objects. Experimental results from a real-time implementation using a laser range sensor are presented demonstrating the feasibility and effectiveness of the presented methods

关键词： Mobile robots Navigation Robot sensing systems Vehicle dynamics Object detection Vehicles Particle filters State estimation Computer vision Sensor phenomena and characterization

来源：评论

学校读者我要写书评

暂无评论

State estimation for systems with implicit outputs for the integration of vision and inertial sensors

State estimation for systems with implicit outputs for the i...

引用

44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05

作者： Aguiar, A. Pedro Hespanha, João P. ISR/IST Institute for Systems and Robotics Instituto Superior Técnico Torre Norte 8 Av. Rovisco Pais 1049-001 Lisboa Portugal Department of Electrical and Computer Engineering University of California Santa Barbara CA 93106-9560 United States

ISBN: (纸本)0780395689

This paper addresses the state estimation of a system with implicit outputs. We formulate the problem in the so-called deterministic H ∞ filtering setting by computing the value of the state that minimizes the induced L2 -gain from disturbances to estimation error, while remaining compatible with the past observations. To avoid weighting the distant past as much as the present, a forgetting factor is also introduced. We show that, under appropriate observability assumptions, the optimal estimate converges globally asymptotically to the true value of the state in the absence of noise and disturbance. In the presence of noise, the estimate converges to a neighborhood of the true value of the state. We apply these results to the estimation of position and attitude of an autonomous vehicle using measurements from an inertial measurement unit (IMU) and a monocular charged-coupled-device (CCD) camera attached to the vehicle. © 2005 IEEE.

关键词： State estimation

来源：评论

学校读者我要写书评

暂无评论

Coordinated Path Following Control of Multiple Wheeled Robots with Directed Communication Links

Coordinated Path Following Control of Multiple Wheeled Robot...

引用

IEEE Conference on Decision and Control

作者： R. Ghabcheloo A. Pascoal C. Silvestre I. Kaminer Institute for Systems and Robotics (ISR) and Department of Electrical Engineering Instituto Superior Técnico Lisboa Portugal Department of Mechanical and Astronautical Engineering Naval Postgraduate School Monterrey CA USA

The paper addresses the problem of steering a fleet of wheeled robots along a set of given spatial paths, while keeping a desired inter-vehicle formation pattern. This problem arises for example when multiple vehicles are required to scan a given area in cooperation. In a possible mission scenario, one of the vehicles acts as a leader and follows a path accurately, while the other vehicles follow paths that are naturally determined by the formation pattern imposed. The solution adopted for coordinated path following builds on Lyapunov-based techniques and addresses explicitly the constraints imposed by the topology of the inter-vehicle communications network, which is captured in the framework of directed graph theory. With this set-up, path following (in space) and inter-vehicle coordination (in time) are essentially decoupled. Path following for each vehicle amounts to reducing a conveniently defined error variable to zero. Vehicle coordination is achieved by adjusting the speed of each of the vehicles along its path, according to information on the position of the other vehicles, as determined by the communications topology adopted. Simulations illustrate the efficacy of the solution proposed.

关键词： Communication system control Mobile robots Robot kinematics Communication networks Motion control Graph theory Remotely operated vehicles Orbital robotics Aerospace control Laplace equations

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共15页 << < 6 7 8 9 10 11 12 13 14 15 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

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：