检索结果-内蒙古大学图书馆

arXiv 2019年

作者： Hu, Hanjiang Wang, Hesheng Liu, Zhe Yang, Chenguang Chen, Weidong Xie, Le Autonomous Robot Lab Department of Automation Key Laboratory of System Control and Information Processing Ministry of Education Shanghai Jiao Tong University Shanghai200240 China T Stone Robotics Institute Chinese University of Hong Kong Hong Kong Bristol Robotics Laboratory University of the West of England BristolBS16 1QY United Kingdom School of Material Science and Engineering Shanghai Jiao Tong University Shanghai200240 China

Visual localization is a crucial problem in mobile robotics and autonomous driving. One solution is to retrieve images with known pose from a database for the localization of query images. However, in environments with drastically varying conditions (e.g. illumination changes, seasons, occlusion, dynamic objects), retrieval-based localization is severely hampered and becomes a challenging problem. In this paper, a novel domain-invariant feature learning method (DIFL) is proposed based on ComboGAN, a multi-domain image translation network architecture. By introducing a feature consistency loss (FCL) between the encoded features of the original image and translated image in another domain, we are able to train the encoders to generate domain-invariant features in a self-supervised manner. To retrieve a target image from the database, the query image is first encoded using the encoder belonging to the query domain to obtain a domain-invariant feature vector. We then preform retrieval by selecting the database image with the most similar domain-invariant feature vector. We validate the proposed approach on the CMU-Seasons dataset, where we outperform state-of-the-art learning-based descriptors in retrieval-based localization for high and medium precision scenarios. Copyright © 2019, The Authors. All rights reserved.

关键词： Machine learning

来源：评论

学校读者我要写书评

暂无评论

Analysis of Indoor Exclusion Zone in Nuclear Power Plant Environments

Analysis of Indoor Exclusion Zone in Nuclear Power Plant Env...

引用

IEEE International Workshop on Electromagnetics, Applications and Student Innovation (iWEM)

作者： Jong-Eon Park Sangwoon Youn Hosung Choo Jaeyul Choo Metamaterial Electronic Device Research Center Hongik University Seoul Republic of Korea School of Electronic and Electrical Engineering Hongik University Seoul Republic of Korea Department of Instrumentation Control and Electrical System Korea Institute of Nuclear Safety Daejeon Republic of Korea

This article investigates the indoor exclusion zones (EZs) according to room dimensions and compares them with the free space EZs. Fluctuations in the received power level with respect to the distance for various path... 详细信息

关键词： Wireless communication Transmitters Wireless sensor networks Electromagnetic interference Geometry Power generation Safety

来源：评论

学校读者我要写书评

暂无评论

Proposal of global PBL education for engineers using sequence learning kit 4

Proposal of global PBL education for engineers using sequenc...

引用

4th International Conference on engineering, Applied Sciences and Technology, ICEAST 2018

作者： Yajima, Kuniaki Maneerat, Noppadol Sugaya, Junichi Nitta, Akihiro Takeichi, Yoshihiro Sato, Jun Dept. Information Networks National Institute of Technology Sendai College Sendai Miyagi Japan King Mongkut's Institute of Technology Ladkrabang Thailand Dept. Intelligent and Electronics Systems National Institute of Technology Sendai College Sendai Miyagi Japan Department of Information and Electronic System Engineering National Institute of Technology Sendai College Sendai Miyagi Japan Dept. Electrical and Electronic Engineering National Institute of Technology Tsuruoka College Tsuruoka Yamagata Japan Dept.Control and Information Systems Engineering National Institute of Technology Tsuruoka College Tsuruoka Yamagata Japan

ISBN: (纸本)9781538649565

Recently, in the field of education, learning methods called active learning and Global Project Based Learning are paying attention. We suggest education material and theme as the Global engineering PBL education. So we developed the learning kit of sequence control. That is simple positioning control system which consist of PLC, sensors and some balls. It looks like game board, but that can change difficulty of the problem that the angle is changed and the number of the sensor is changed. Students cooperate to solve the problem that many balls are caught. This will be active learning and be PBL of the Problem Based Learning. We investigate how student's Generic Skill grows by implementation of Global PBL. © 2018 IEEE.

关键词： Students

来源：评论

学校读者我要写书评

暂无评论

control of District Heating system with Flow-dependent Delays

引用

IFAC-PapersOnLine 2017年第1期50卷 13612-13617页

作者： Bendtsen, Jan Val, Jorge Kallesøe, Carsten Krstic, Miroslav Department of Electronic Systems Automation and Control Aalborg University Aalborg9210 Denmark Grundfos A/S Poul Due Jensens Vej Bjerringbro Denmark Department of Mechanical and Aerospace Engineering University of California La Jolla San DiegoCA92093-0411 United States

All flow systems are subject to transport delays, which are governed by the flow rates in the system. When the flow rates themselves are control inputs, the system becomes subject to input-dependent state delays, which poses significant theoretical problems. In an earlier paper, we proposed a guaranteed stable control design for a system of this type; in this paper, we provide experimental evidence of the usefulness of the design. © 2017

关键词： District heating control inputs District heating system Experimental evidence Flow systems Lyapunov Krasovskii Stable control State delay Transport delay

来源：评论

学校读者我要写书评

暂无评论

controllability of Heterogeneous Directed Networked MIMO systems

arXiv

引用

arXiv 2018年

作者： Xiang, Linying Wang, Peiru Chen, Fei Chen, Guanrong School of Control Engineering Northeastern University at Qinhuangdao Qinhuangdao066004 China Department of Automation Xiamen University Xiamen361005 China State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Shenyang110004 China Department of Electronic Engineering City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong

This paper studies the controllability of networked multi-input-multi-output (MIMO) systems, in which the network topology is weighted and directed, and the nodes are heterogeneous higher-dimensional linear time-invariant (LTI) dynamical systems. The primary objective is to search for controllability criteria beyond those already known for homogeneous networks. The focus is on the effects of the network topology, node dynamics, external control inputs, as well as the inner interactions on the network controllability. It is found that a network of heterogeneous systems can be controllable even if the corresponding homogeneous network topology is uncontrollable. The finding thus unravels another fundamental property that affects the network controllability—the heterogeneity of the node dynamics. A necessary and sufficient condition is derived for the controllability of heterogeneous networked MIMO LTI systems. For some typical cases, necessary and/or sufficient controllability conditions are specified and presented on the node dynamics, inner interactions, as well as the network *** Codes 93B05 Copyright © 2018, The Authors. All rights reserved.

关键词： Directed graphs

来源：评论

学校读者我要写书评

暂无评论

Fault Detection for Power systems Using Deterministic Learning

Fault Detection for Power Systems Using Deterministic Learni...

引用

Chinese control Conference

作者： Tianrui Chen David J. Hill Cong Wang School of Automation Guangdong University of Technology Guangzhou P. R. China Department Electrical and Electronic Engineering University of Hong Kong Hong Kong School of Automation and the Center for Control and Optimization South China University of Technology Guangzhou P. R. China

In this paper, a fault diagnosis approach is proposed for power systems based on deterministic learning (DL) theory. First, a learning estimator is constructed to obtain knowledge of the fault dynamics in the power networks. Based on DL, local accurate approximations of the unknown fault functions are achieved. Second, a distributed fault diagnosis scheme is designed to monitor the power systems. The knowledge of the fault dynamics is used to detect the occurrence of a fault. Simulation studies are included to demonstrate the effectiveness of the approach.

关键词： Fault diagnosis Power system dynamics Trajectory Circuit faults Radial basis function networks Monitoring

来源：评论

学校读者我要写书评

暂无评论

Preventive Soot Blowing Strategy based on State of Health Prediction for Coal-fired Power Plant Boiler

Preventive Soot Blowing Strategy based on State of Health Pr...

引用

第37届中国控制会议

作者： Yuanhao Shi Jie Wen Xiaoqiong Pang Jianfang Jia Fangshu Cui Jianchao Zeng Jingcheng Wang North University of China School of Electrical and Control Engineering North University of China School of Computer Science and Technology North University of ChinaSchool of Computer Science and Technology Shanghai Jiao Tong University Department of Automationand Key Laboratory of System Control and Information ProcessingMinistry of Education of China

This paper seeks the optimization of soot-blowing operations for heat transfer surfaces in coal-fired power plant boiler.A preventive soot blowing strategy based on state of health prediction for heat transfer surface was *** average state of health of heat transfer surface was forecasted as the threshold to draft preventive soot blowing *** to the theory of renewal process,an optimization model with the system prediction interval and the threshold of preventive soot blowing operation as the optimization variables and minimize average energy losses as the target function was *** using Particle Swarm Optimization（PSO）,the optimal preventive cycle and soot-blowing threshold were obtained,and the long-run average cost rate was the *** model is validated with experiment data of a 300 MW coal-fired power plant boiler and the parameters of prediction model are *** results can verify the feasibility of proposed *** can be used as the guide for the optimization of soot blowing in coal-fired power plant to improve the energy conservation level.

关键词： Coal-fired Boiler Heat Transfer Surface Soot-blowing State of Health（SOH） Prediction

来源：评论

学校读者我要写书评

暂无评论

Task-space cooperative tracking control of multi-robot systems with unknown parameters and time delays

Task-space cooperative tracking control of multi-robot syste...

引用

IEEE/ASME (AIM) International Conference on Advanced Intelligent Mechatronics

作者： Xinwu Liang Hesheng Wang Yun-Hui Liu Weidong Chen Le Xie The School of Aeronautics and Astronautics Shanghai Jiao Tong University Shanghai China Department of Automation Key Laboratory of System Control and Information Processing Shanghai China Department of Mechanical and Automation Engineering The Chinese University of Hong Kong Hong Kong China National Digital Manufacturing Technology Center Shanghai Jiao Tong University Shanghai China

In this paper, the task-space cooperative tracking control problem of multi-robot systems on strongly connected digraphs is studied. To solve such synchronization problem, a novel adaptive control approach is proposed by introducing task-space synchronization errors between neighboring robotic systems into the task-space reference velocity/acceleration. To cope with unknown kinematic and dynamic parameters, adaptive laws are developed without explicitly incorporating synchronization terms. Lyapunov stability theory is used to rigorously prove asymptotical convergence of the task-space synchronization and tracking errors by fully considering the time delays. Finally, simulation results are given to illustrate the performance of the proposed task-space cooperative tracking control approach.

关键词： Task analysis Robot kinematics Kinematics Multi-robot systems Synchronization Aerospace electronics

来源：评论

学校读者我要写书评

暂无评论

Stability and Neimark-Sacker bifurcation analysis for single gene discrete system with delay

Stability and Neimark-Sacker bifurcation analysis for single...

引用

Chinese control Conference

作者： Feng Liu Qicheng Mei Fenglan Sun Xinmei Wang Hua O. Wang Hubei key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan China School of Automation China University of Geosciences Wuhan China Research Center of System Theory and Application Chongqing University of Posts and Telecommunications Chongqing China Department of Mechanical Engineering Boston University Boston MA USA

The network structure and functional properties of gene regulatory system and their relationships arc an important research field in systems biology. In this paper, a new improved model is proposed based on the study of gene expression process. The model takes into account the effect of protein concentration on the gene expression, so as to obtain a new bifurcation point and improve the performance of the system. The validity of the model is verified by theoretical analysis and data simulation.

关键词： Mathematical model Proteins Stability analysis Bifurcation Biological system modeling Delays RNA

来源：评论

学校读者我要写书评

暂无评论

Stability and Stabilization Analysis of Fractional-Order Linear systems Subject to Actuator Saturation and Disturbance

引用

IFAC-PapersOnLine 2017年第1期50卷 9718-9723页

作者： LI C. CHEN K. LU J. TANG R. School of Mechanical and Electrical Engineering Hainan University Haikou 570228 China Department of Automation Shanghai JiaoTong University Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai 200240 China

This paper focuses on the fractional order linear systems subject to actuator saturation and external disturbance, and proposes method to estimate the domain of attraction. The quadratic Lyapunov functions are adopted to obtain the invariance of considered systems. The convex combination form of quadratic Lyapunov function is utilized to obtain a large domain of attraction. A continuous feedback law is derived to achieve disturbance rejection for closed-loop systems. Numerical example is provided to illustrate the effectiveness of the developed method. © 2017

关键词： Disturbance Domain of Attraction Fractioanl-Order systems LMI Saturation Stability

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：