检索结果-南通市图书馆

2009中国控制与决策会议

作者： xu yulin shanghai key laboratory of power station automation technology,school of mechatronics engineering and automation,shanghai university,shanghai 200072

＜正＞In this paper,the nonlinear model of a flexible web winding system composed of three motors and two load cells is derived based on the general laws of *** model parameters are identified using optimization *** controller is designed to obtain good reference tracking properties as well as to properly reject sinusoidal disturbance for suppressing *** frequency of disturbance is constant or time-varying and unknown but *** proposed approach is based on a time-varying frequency weighting function giving an extended linear parameter varying（LPV） model that is used to design a stabilizing LPV H∞*** method is applied to the flexible web winding system to compensate the web tension disturbance caused by the sinusoidal vibration on unwinder.

关键词： Flexible web winding svstem sinusoidal disturbance reiection LPV H∞controller.

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

SUS306不锈钢平均晶粒尺寸的超声无损检测及其评价

引用

上海大学学报（自然科学版） 2010年第2期16卷 125-129,146页

作者：马世伟袁康上海大学机电工程与自动化学院上海市电站自动化技术重点实验室上海200072

对经过高温热处理的SUS306不锈钢模拟试样进行接触型脉冲反射法高频超声检测实验,对获得的回波信号进行分析,研究衰减系数、速度、底面反射波峰值频率、背散射波强度等超声特征参数的变化情况,建立这些参数与被测材料平均晶粒尺寸的关系... 详细信息

对经过高温热处理的SUS306不锈钢模拟试样进行接触型脉冲反射法高频超声检测实验,对获得的回波信号进行分析,研究衰减系数、速度、底面反射波峰值频率、背散射波强度等超声特征参数的变化情况,建立这些参数与被测材料平均晶粒尺寸的关系,对利用超声脉冲反射技术进行材料热疲劳损伤进展的无损检测与评价具有实际意义.

关键词：无损评价 SUS306不锈钢晶粒尺寸超声波

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Hybrid static output feedback stabilization of planar LTI system

Hybrid static output feedback stabilization of planar LTI sy...

引用

2009年中国智能自动化会议

作者： SONG Yang~(1,2),FEI Min-rui~(1,2) (1.Department of automation,school of mechatronics engineering and automation, shanghai university,shanghai 200072 2.shanghai key laboratory of power station automation technology,shanghai 200072)

Aiming at a class of planar linear time-invariant(LTI) systems which are unstabilizable by a single static output feedback,this paper studies the global stabilization by the so-called conic switching *** proved that the sufficient condition for these cases to be globally stabilizable via the conic switching output feedback is that the characteristic roots of the state matrix of the closed-loop system can be placed to a pair of conjugate complex number by a single static output ***,for those cases that the systems are stabilizable via the conic switching,we give the permissive ranges of the output feedback gains and the corresponding switching law.

关键词： Switched systems Planar system Static output feedback

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Performance analysis of a class of networked control systems under data rate constraints

引用

Journal of shanghai university(English Edition) 2009年第5期13卷 356-358页

作者：李力雄费敏锐丁瑾 shanghai key laboratory of power station automation technology School of Mechatronics Engineering and AutomationShanghai University Software Development Center ICBC

In networked control system (NCS) where control loop is closed over communication network, limited data rate may deteriorate control performance even destabilize the control system. In this paper, performance analysis of a typical second-order control system with data rate constraints is conducted, and the concept of critical data rate (CDR) is presented. In order to find the CDR in NCS, an approximate searching method is proposed to guarantee acceptable control performance.

关键词： networked control system (NCS) data rate network-induced delay performance of control

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Visual Servo System Design Based on Embedded Linux

Visual Servo System Design Based on Embedded Linux

引用

第24届中国控制与决策会议

作者： Yan Kai. Chao,Department of mechatronics engineering and automation, shanghai university Yong Huan. Yang,the Department of mechatronics engineering and automation, shanghai university Yu Lin. xu the Department of mechatronics engineering and automation, shanghai university the shanghai key laboratory of power station automation technology

This thesis concerns the establishment of a visual servo system based on embedded Linux mainly used for recognition and tracking of the moving objects in a relatively simple background of the house. At first, the thesis studied the successful transplant of the open source visual library Open CV to the embedded Linux and the build of the hardware/software platform and cross-compiling *** image of the moving object is processed via Open CV. The shape recognition of the moving object is achieved according to the feature information of provincial characteristics of image-moment invariants. The spatial value of manipulator end is calculated by the estimate of the offset of the moving project’s profile and then the angles of the mechanical arms’ joints are adjusted accordingly. These conditions would be approximated gradually to achieve the tracking of the moving object.

关键词： embedded visual servo object recognition and tracking Open CV moment invariants

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

A Novel Neuro-Fuzzy Model-Based Run-to-run Control for Batch Processes with Uncertainties

A Novel Neuro-Fuzzy Model-Based Run-to-run Control for Batch...

引用

2009中国控制与决策会议

作者： JIA Li~1,SHI Jiping~1,SONG Yang,~1,CHIU Min-Sen~2 1.shanghai key laboratory of power station automation technology,Department of automation,College of mechatronics engineering and automation,shanghai university,shanghai 200072,China 2.Faculty of engineering,National university of Singapore,Singapore

＜正＞In this paper,a run-to-run control with neuro-fuzzy model updating mechanism is *** strategy features the ability to learn from previous batches to obtain iteratively the optimal control profile and adjust the neuro-fuzzy model *** addition,an updating algorithm guaranteeing the global convergence of the weights of the model is developed based on the Lyapunov *** a result,model uncertainties can be *** results show that by updating the model from batch to batch,the control profile converges to the corresponding suboptimal one in the subsequent batches.

关键词： batch processes neuro-fuzzy system Run-to-run control global convergence

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Stability of Network Control System with Time Varying Delay τ（t） and τ（t）=1

Stability of Network Control System with Time Varying Delay ...

引用

第二十九届中国控制会议

作者： ZHENG Min1,2,FEI Minrui1,2,LI Yang1 1.College of mechatronics engineering and automation,shanghai university,shanghai 200072,P.R.China2.shanghai key laboratory of power station automation technology,shanghai 200072,P.R.China

This paper is concerned with the stability of networked system with time varying delay τ（t） and τ（t）=*** using the discretized form of Lyapunov-Krasovskii functional,delay-dependent stability criteria are established in terms of *** discretization approach will decrease the conservatism of traditional L-K *** examples show the effectiveness of our proposed method.

关键词： Time varying delay Discretized L-K functional Stability

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

The Design and Implementation of Industrial Monitoring Wireless Sensor Networks Based on Improved TDMA MAC Protocol

The Design and Implementation of Industrial Monitoring Wirel...

引用

第24届中国控制与决策会议

作者： Liming xu 1 , Jingqi Fu 2 1. school of Mechanical engineering and automation, shanghai university, shanghai 200072, China2. school of Mechanical engineering and automation, shanghai university, shanghai 200072, China

The reliability of data transmission in wireless sensor networks is influenced by harsh industrial environments, complex interference effects. An improved TDMA MAC protocol based on link quality estimation is proposed in the paper. The protocol is implemented on the CC2530 hardware platform integrated of the IEEE802.15.4 standard protocol. The industrial monitoring network system is tested in the industrial field. The result shows that the protocol in packet transmission rate has greatly improved, and data transmission reliability is improved. The protocol can be able to adapt to industrial environment applications.

关键词： Wireless Sensor Networks Improved TDMA Link Quality Estimation IEEE802.15.4 CC2530

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Binocular Stereo Vision Based Humanoid Manipulator Control

Binocular Stereo Vision Based Humanoid Manipulator Control

引用

第三十届中国控制会议

作者： YANG Yong-Huan~1,xu Yu-Lin~(1,2),LI Xin~(1,2),CHEN Wan-Mi~(1,2),CHAO Yan-Kai~1 1.school of mechatronics engineering and automation,shanghai university,shanghai 200072,P.R.China 2.shanghai key laboratory of power station automation technology,shanghai 200072,P.R.China

＜正＞Inverse kinematics of manipulator and object location are the key technology for service *** this paper,a binocular stereo vision based humanoid manipulator control approach is presented for the service robot which is working in the "human friendly" *** inverse kinematic solver is proposed to find all joint angles for given position of the effectors on the *** target object is recognized by color *** 3D position is computed by the stereo vision system after contour ***,the approach is applied to the service robot with Bumblebee2 camera and two arms for object *** experimental results are conducted for illustration of effectiveness of the proposed methods.

关键词： Manipulation HSV Contour Extraction

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Modeling of the Human Bronchial Tree and Simulation of Internal Airflow:A Review

Modeling of the Human Bronchial Tree and Simulation of Inter...

引用

2010 International Conference on Life System Modeling and Simulation & 2010 International Conference on Intelligent Computing for Sustainable Energy and Environment

作者： Yijuan Di1, Minrui Fei1,*, Xin Sun1 and T C Yang 2 1 shanghai key laboratory of power station automation technology, shanghai university, shanghai, 200072, China 2 university of Sussex, UK

Human bronchial tree is breath passage between pulmonary capillary vessel and fresh air and it is a key part of the human respiratory system. Clinical experience shows that abnormal or diseases of the respiratory system often occur at some bifurcated segments of the bronchial tree. Therefore, for better diagnosis and treatment of such diseases, it is necessary to investigate morphology structure of human bronchial tree and its internal airflow dynamics. In this paper, approaches for the modeling of bronchial tree are outlined based on the morphology structure data obtained from the two sources, i.e. anatomical experiments and CT/MRI. In addition, the simulation of airflow in bifurcating airways is summarized from the aspect of simulation methods and CFD. Finally, possible future research is suggested to develop: (1) a universal dynamic model of the airflow in the bronchial tree;and (2) a user-friendly software package for modeling and simulation.

关键词： Bronchial Tree, Airflow, Modeling, Simulation, Anatomical Experiments, CT/MRI, CFD.

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

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：