检索结果-南通市图书馆

Map Aided Pedestrian Dead reckoning Using Buildings Information for Indoor Navigation Applications

Positioning 2013年第3期4卷 227-239页

作者： Mohamed Attia Adel Moussa Naser El-Sheimy Mobile Multi-Sensor Systems Research Group Department of Geomatics Engineering University of Calgary Calgary Canada.

Navigation systems play an important role in many vital disciplines. Determining the location of a user relative to its physical environment is an important part of many indoor-based navigation services such as user navigation, enhanced 911 (E911), law enforcement, location-based and marketing services. Indoor navigation applications require a reliable, trustful and continuous navigation solution that overcomes the challenge of Global Navigation Satellite System (GNSS) signal unavailability. To compensate for this issue, other navigation systems such as Inertial Navigation System (INS) are introduced, however, over time there is a significant amount of drift especially in common with low-cost commercial sensors. In this paper, a map aided navigation solution is developed. This research develops an aiding system that utilizes geospatial data to assist the navigation solution by providing virtual boundaries for the navigation trajectories and limits its possibilities only when it is logical to locate the user on a map. The algorithm develops a Pedestrian Dead reckoning (PDR) based on smart-phone accelerometer and magnetometer sensors to provide the navigation solution. Geospatial model for two indoor environments with a developed map matching algorithm was used to match and project navigation position estimates on the geospatial map. The developed algorithms were field tested in indoor environments and yielded accurate matching results as well as a significant enhancement to positional accuracy. The achieved results demonstrate that the contribution of the developed map aided system enhances the reliability, usability, and accuracy of navigation trajectories in indoor environments.

关键词： Indoor Navigation Map Matching Geospatial Data Model Pedestrian Dead reckoning (PDR)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Dead reckoning技术在网络游戏中的应用

引用

计算机应用研究 2007年第9期24卷 231-232,314页

作者：梁白鸥陈雷霆蔡洪斌电子科技大学计算机科学与工程学院成都610054

介绍了基于物理运动学算法的预测技术以及基于Cubic Splines算法的平滑处理技术,并给出了Dead reckoning在网络游戏中应用的具体算法以及该算法的相应实例。

关键词： Dead reckoning 网络延迟网络游戏客户端预测平滑处理

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

A Time of reckoning

引用

Beijing Review 2019年第33期62卷 24-25页

作者： Kerry Brown the Lau China Institute at King’s College

Controversial 20th-century British politician Enoch Powell once noted that all political careers in Great Britain end in tears. With Theresa May, his words proved true not just figuratively but literally. As the British prime minister announced on May 24 that she would step down on June 7, observers could see her face consumed with emotion and tears well up in her eyes. It was a bathetic note to end a chaotic, and for many, in glorious, period.

关键词： A Time of reckoning 20th-century glorious,period

来源：

维普期刊数据库

维普期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

增进平滑移动效果的Dead reckoning算法

引用

电大理工 2006年第3期 30-32页

作者：任广伟辽宁广播电视大学沈阳110034

网络游戏中一个最常见的问题就是互联网自身存在的延时问题,当新数据包到来的时候,游戏界面上的角色就会产生抖动现象。解决这个问题的最重要的方法就是Deadreckoning算法。本文对传统的DR算法进行了改进,在其平滑机制中引入了“三次参... 详细信息

网络游戏中一个最常见的问题就是互联网自身存在的延时问题,当新数据包到来的时候,游戏界面上的角色就会产生抖动现象。解决这个问题的最重要的方法就是Deadreckoning算法。本文对传统的DR算法进行了改进,在其平滑机制中引入了“三次参数”方法,并在3D游戏中引入了方向预测方法。改进后的算法在性能和游戏真实性方面取得了较好的效果。

关键词： Dead reckoning 算法平滑技术

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

Automatic Construction of Floor Plan with Smartphone Sensors

引用

Journal of Electronic Science and Technology 2019年第1期17卷 13-25页

作者： Rui Zhou Xiang Lu Hao-Sen Zhao Yang Fu Ming-Jie Tang the School of Information and Software Engineering University of Electronic Science and Technology of China

Indoor floor plans are of vital importance for a wide range of indoor social applications, however, they are often unavailable due to various reasons. This paper proposes a method to automatically construct the indoor floor plan with rooms and corridors as well as landmarks, using inertial traces collected with smartphones. Landmarks,such as turnings, doors, and stairs, are identified according to inertial sensors and WiFi signals. The inertial traces are then partitioned into segments according to the turnings and classified as room type or corridor type according to the doors. Clustering is applied on room type and corridor type trace segments separately to produce room type and corridor type clusters. The construction of room applies the α-shape algorithm on room type clusters and the construction of corridor employs the principal component analysis(PCA) algorithm or the α-shape algorithm on corridor type clusters. Evaluations in two representative scenarios show that the method can construct the floor plan of acceptable accuracy with a relatively small set of inertial traces.

关键词： Clustering floor plan construction pedestrian dead reckoning smartphone sensor

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

An Indoor Pedestrian Localization Algorithm Based on Multi-Sensor Information Fusion

引用

Journal of Computer and Communications 2017年第3期5卷 102-115页

作者： Xiangyu Xu Mei Wang Liyan Luo Zhibin Meng Enliang Wang Key Laboratory of Cognitive Radio & Information Processing Ministry of Education Guilin University of Electronic Technology Guilin China Guangxi Experiment Center of Information Science Guilin China

For existing indoor localization algorithm has low accuracy, high cost in deployment and maintenance, lack of robustness, and low sensor utilization, this paper proposes a particle filter algorithm based on multi-sensor fusion. The pedestrian’s localization in indoor environment is described as dynamic system state estimation problem. The algorithm combines the smart mobile terminal with indoor localization, and filters the result of localization with the particle filter. In this paper, a dynamic interval particle filter algorithm based on pedestrian dead reckoning (PDR) information and RSSI localization information have been used to improve the filtering precision and the stability. Moreover, the localization results will be uploaded to the server in time, and the location fingerprint database will be built incrementally, which can adapt the dynamic changes of the indoor environment. Experimental results show that the algorithm based on multi-sensor improves the localization accuracy and robustness compared with the location algorithm based on Wi-Fi.

关键词： Multi-Sensor Fusion Indoor Localization Pedestrian Dead reckoning (PDR) Particle Filter

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

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

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

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：