基于Android的室内导航定位系统设计与实现

发布时间：2018-03-29 03:15

本文选题：室内定位　切入点：导航　出处：《东华大学》2013年硕士论文

【摘要】：随着无线通信技术的快速发展和人们对定位服务需求的日益增多,无线导航定位技术获得原来越多的关注。全球定位系统GPS(Global Position System)是20世纪70年代由美国研制的卫星导航定位系统。对于信号到达较为容易的开阔的室外环境,GPS可以提供高精度的定位信息。而对于室内环境,山于建筑物本身的遮挡,使得在室内环境中接收到的GPS信号极其微弱,无法从中获得定位所需的有效信息。为解决这个问题,本文设计并实现了一个室内导航定位系统。该系统主要应用于大型超市、展会、候机楼。该系统最大的特点在于部署简单,不需要额外的部署设备,仅使用现有的WiFi网络和一个移动终端就可以为用户提供导航定位服务。系统的实现融合了惯性定位和WiFi(Wireless Fidelity)定位两种方法。该系统分为两部分：1、定位服务器；2、导航定位终端。导航定位终端是一个Android移动终端,导航定位终端从定位服务器下载室内地图为用户提供导航定位服务。本文为移动终端设计一个Android应用软件,该应用软件通过Android移动终端上的WiFi、电子罗盘、加速度传感器来完成导航定位功能。论文中使用JOSM和MapActivity软件设计电子地图,采用最短路径算法实现导航功能,设计了解析电子地图的算法和生成最短路径相邻矩阵算法；在惯性定位模块中实现用户运动检测算法和设计路径匹配算法,使用二维码获取用户起始位置；论文对传统的WiFi定位算法进行了改进,减少了算法的运行时间。经过实地测试,本文所设计的导航定位系统的定位误差接近5米,满足设计要求。
[Abstract]:With the rapid development of wireless communication technology and the increasing demand for positioning services, The more attention has been paid to the technology of wireless navigation and positioning, the global positioning system (GPS(Global) is a satellite navigation and positioning system developed by the United States in the 1970s. Provides high precision location information. For indoor environments, The GPS signal received in the indoor environment is so weak that the effective information needed for location can not be obtained due to the shielding of the mountain in the building itself. In order to solve this problem, an indoor navigation and positioning system is designed and implemented in this paper. The system is mainly used in large supermarkets, exhibitions and terminal buildings. Only using the existing WiFi network and a mobile terminal can provide navigation and positioning services for the user. The implementation of the system combines inertial positioning and WiFi(Wireless positioning. The system is divided into two parts: 1, 2, and navigation. Positioning terminal. Navigation terminal is a Android mobile terminal, This paper designs a Android application software for the mobile terminal. The application software is via the WiFi-electronic compass on the Android mobile terminal, the navigation and positioning terminal download the indoor map from the location server to provide the navigation and positioning service for the user, this paper designs a Android application software for the mobile terminal. Acceleration sensor to complete the navigation and positioning function. In this paper, JOSM and MapActivity are used to design the electronic map, and the shortest path algorithm is used to realize the navigation function. The algorithm for analyzing the electronic map and the algorithm for generating the shortest path adjacent matrix are designed. In the inertial positioning module, the user motion detection algorithm and the design path matching algorithm are realized, and the user starting position is obtained by using the two-dimensional code. The traditional WiFi location algorithm is improved to reduce the running time of the algorithm. The positioning error of the navigation and positioning system designed in this paper is close to 5 meters, which meets the design requirements.
【学位授予单位】：东华大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TN929.5;P228.4

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