检索结果-南通市图书馆

2020中国汽车工程学会年会暨展览会

作者： Jiang Hongwei Zhang Jian Wang Yu Xie Fei Zhang Sutie Han Yaning Wang Shan China FAW Group Co.Ltd Intelligent Connected Vehicle Development Institute

Path following is an important part of intelligent driving,belonging to vehicle lateral *** is one of the research focuses to follow the desired path steadily and *** order to realize the path following analysis and verification of the intelligent vehicle,a two degrees of freedom vehicle lateral dynamic model was *** on that,a curvature feedforward control model which can accurately describe the mapping relationship between the steering angle and the path curvature was proposed and ***,In order to obtain accurate curvature information,based on the least squares theory,a constrained arc fitting method was proposed to calculate the path *** with curvature feedfoward control model,the path following control model of intelligent vehicle was ***,the following effect of the path following method and the existing multi-point preview following method was compared by simulation ***,the real vehicle test was used to verify the method of path *** results show that the method has good stability and accuracy.

关键词： path following curvature feedforward control arc fitting simulation analysis experimental verification

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

Correction Optimization of Lens Radial Distortion with Bending Measurement Function

引用

天津大学学报：英文版 2016年第4期22卷 374-379页

作者：张敏吴凡路金龙旭李国宁韩双丽张宇 Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Precision Measuring Technology and Instruments Tianjin University Tianjin 300072 China

In this paper, a distortion correction method with reduced complexity is proposed. With the singleparameter division model, the initial approximation of distortion parameters and the distortion center can be calibrated. Based on the distance from the image center to the fitting lines of the extracted curves, a bending measurement function with a weighted factor is proposed to optimize the initial value. Simulation and experiments verify the proposed method.

关键词： arc fitting camera calibration distortion correction division model field angle

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

PIPE ROUTING DESIGN AND ASSEMBLY PLANNING TECHNOLOGY IN VIRTUAL ENVIRONMENT

PIPE ROUTING DESIGN AND ASSEMBLY PLANNING TECHNOLOGY IN VIRT...

引用

International Technology and Innovation Conference 2009

作者： Jianhua Liu * Ruxin Ning Qidong Hu School of Mechanical Engineering Beijing Institute of Technology Beijing 100081 China

Pipe routing design and assembly planning for complicated products are time-consuming and difficult, and Virtual Reality （VR） technology provides engineers a new and efficiency way. Based on the analysis of pipeline’s characteristic, a pipe modeling method based on control points model in virtual environment is introduced, and the pipe are built though recognizing and organizing those control points. The process of pipeline layout was introduced. Some rules are applied in the process of pipeline layout. The outcome of the pipeline layout is used for pipe assembly simulation in virtual environment directly. The unreasonable outcome can be found earlier through pipe assembly simulation. This paper focuses on the key realization techniques of pipeline layout and assembly simulation in virtual environment, including digital model of pipeline, pipeline layout technique, real-time collision detection in the process of pipe assembly simulation. Eventually, a prototype is developed and has illustrated the feasibility of the proposed above methods and algorithms.

关键词： Pipe routing design Pipe assembly planning Virtual assembly Control point arc fitting

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

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

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：