基于WIFI信号的手机定位系统的设计与实现
发布时间：2018-08-22 18:47
【摘要】：随着我国智慧城市的建设,无线城市的发展变得更快,现如今WIFI已经在很多地方得到了覆盖,像酒店、饭店、宾馆、电影院、超市等,WIFI变得越来越重要,人们的生活中已经不能离开这个新的网民的“宠儿”。随着人们的生活习惯的改变,到任何一个地方首先会考虑是否有WIFI提供,从网上订酒店、宾馆我们会首先选择有WIFI的,无形中我们已经离不开这个网络了。定位对很多人来说都不陌生,我们的手机有定位功能,GPS导航有定位功能,但是不知道大家注意到没有,GPS的使用也是有限的,只能针对当前主要的一些道路、建筑物和名胜进行一些导航和定位,但其对建筑物内部却不能实行定位功能。但实际上我们对于这种细节性的定位功能我们的需求也很大,比如产房婴儿的看护、监狱犯人的看守、重症病人的跟踪等都需要我们的区域性定位功能。由于GPS只能对一些早期建筑设施、道路和进入系统的道路等进行定位,其耗电量也较高,无法通过GPS的使用实现局域性定位。如何利用现有的WIFI网络实现对监控对象在楼宇或建筑物内定位是当前我们所关注的热点。通过现在区域性的WIFI能够提高监控对象的定位准确度,能够对相关的对象进行跟踪,对于有些监控对象可以实现具有针对性的救援,对于整个社会的发展意义重大。本课题研发基于WIFI的手机定位系统,包含了三个子系统：移动客户端软件、AP接入点和服务器端软件三部分。通过前期对特定区域的信号采集、地址划分和特征点标注,系统能够借助最近邻匹配算法或三边定位法对监控对象进行计算和处理,从而实现对监控物体的定位。系统中将三个子系统进行整合最终形成一个整体,通过移动客户端调用Google提供的Map API的Geocoder对地址码实现了信息的解析功能,系统中还采用了一些数据加密的技术来保证系统的运行安全性。最后通过了系统测试,系统运行较好也比较稳定可靠。
[Abstract]:With the construction of intelligent cities in our country, wireless cities are developing faster. Nowadays, WIFI has been covered in many places, such as hotels, restaurants, hotels, cinemas, supermarkets and so on. People's lives can no longer leave this new netizen's "darling". With the change of people's living habits, the first thing to consider is whether WIFI is available anywhere. From online hotel booking, we will choose WIFI first, and we can't get away from this network. Positioning is no stranger to many people. Our mobile phones have positioning functions, GPS navigation and positioning, but we do not know that the use of GPS without attention is also limited, and can only be directed at some of the main roads at present. Buildings and places of interest carry out some navigation and positioning, but they can not be used to locate the interior of buildings. But in fact, we also need this kind of detailed location function, such as the care of babies in labor room, the guard of prison inmates, the tracking of critical patients, etc., all of which need our regional location function. Because GPS can only locate some early building facilities, roads and roads entering the system, its power consumption is also relatively high, so it is impossible to use GPS to realize local positioning. How to use the existing WIFI network to locate monitoring objects in buildings or buildings is a hot topic. Now the regional WIFI can improve the positioning accuracy of the monitoring objects, can track the related objects, can achieve targeted rescue for some monitoring objects, and has great significance for the development of the whole society. This paper develops a mobile phone location system based on WIFI, which includes three subsystems: mobile client software AP access point and server software. Through the signal collection, address division and feature point annotation in the early stage, the system can calculate and process the monitoring object with the help of nearest neighbor matching algorithm or trilateral location method, so as to realize the location of the monitoring object. In the system, the three subsystems are integrated into a whole, and the address code can be parsed by the mobile client by calling the Geocoder of Map API provided by Google. Some data encryption techniques are also used in the system to ensure the security of the system. Finally, through the system test, the system runs better and more stable and reliable.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN92;TN929.53
本文编号：2197984
[Abstract]:With the construction of intelligent cities in our country, wireless cities are developing faster. Nowadays, WIFI has been covered in many places, such as hotels, restaurants, hotels, cinemas, supermarkets and so on. People's lives can no longer leave this new netizen's "darling". With the change of people's living habits, the first thing to consider is whether WIFI is available anywhere. From online hotel booking, we will choose WIFI first, and we can't get away from this network. Positioning is no stranger to many people. Our mobile phones have positioning functions, GPS navigation and positioning, but we do not know that the use of GPS without attention is also limited, and can only be directed at some of the main roads at present. Buildings and places of interest carry out some navigation and positioning, but they can not be used to locate the interior of buildings. But in fact, we also need this kind of detailed location function, such as the care of babies in labor room, the guard of prison inmates, the tracking of critical patients, etc., all of which need our regional location function. Because GPS can only locate some early building facilities, roads and roads entering the system, its power consumption is also relatively high, so it is impossible to use GPS to realize local positioning. How to use the existing WIFI network to locate monitoring objects in buildings or buildings is a hot topic. Now the regional WIFI can improve the positioning accuracy of the monitoring objects, can track the related objects, can achieve targeted rescue for some monitoring objects, and has great significance for the development of the whole society. This paper develops a mobile phone location system based on WIFI, which includes three subsystems: mobile client software AP access point and server software. Through the signal collection, address division and feature point annotation in the early stage, the system can calculate and process the monitoring object with the help of nearest neighbor matching algorithm or trilateral location method, so as to realize the location of the monitoring object. In the system, the three subsystems are integrated into a whole, and the address code can be parsed by the mobile client by calling the Geocoder of Map API provided by Google. Some data encryption techniques are also used in the system to ensure the security of the system. Finally, through the system test, the system runs better and more stable and reliable.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN92;TN929.53
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