基于LBS的点对点通讯技术的研究

发布时间：2018-03-06 00:22

本文选题：低功耗蓝牙　切入点：Wi-Fi　出处：《武汉理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：近年来，人们室内活动越来越丰富，在室内的时间也越来越多。用户需要一种精确的室内定位服务并能够快捷的与邻近用户交换信息。如何让手机更好的便利人们的生活是本论文的研究目的。本文的主要关注问题是室内环境下的LBS服务，首先分析了国内外对近距离通信和室内定位技术的研究状况，然后根据最新的无线技术和室内定位技术提出了无线传输方案和室内定位方案。本文的主要工作可以分为近距离无线通信和室内定位服务两个部分： 1）本文介绍了低功耗蓝牙技术和Wi-Fi技术，通过结合这两种技术给出了近距离无线通信的设计方案：先使用低功耗蓝牙建立连接，向对方传输自己的IP地址，然后激活Wi-Fi功能模块，双方使用基于Socket的网络通信来传输数据。该方案结合了低功耗蓝牙技术和Wi-Fi技术的优点，能够降低文件传输过程的耗电量，并有效的解决了无需通过基础设施网络接入互联网服务器场景下进行文件传输的问题，能够满足近距离无线传输数据的需求。 2）本文引进了杜克大学方案中的“路标”思想以及路由协议思想，并使用最新的iBeacon技术，提出了一种新的室内定位的方案：在室内环境中布置支持iBeacon技术的基站，将iBeacon基站充当室内环境中的“无形路标”。将室内环境划分几个不同的区域，每一个区域都由一个iBeacon基站进行管理，并且相邻两个区域中的基站之间能够相互通信。由iBeacon基站向区域中的用户提供服务。该室内定位方案可以向用户提供查询、导航、发送位置等服务，，它具有功耗低、布局方便、成本低廉、定位精度高等特点。
[Abstract]:In recent years, people's indoor activities have become more and more abundant. Users need a precise indoor location service and can quickly exchange information with nearby users. How to make mobile phone more convenient for people's life is the purpose of this paper. The main concern is LBS services in an indoor environment, Firstly, the research status of close distance communication and indoor positioning technology at home and abroad is analyzed, and then the wireless transmission scheme and indoor positioning scheme are put forward according to the latest wireless technology and indoor positioning technology. The main work of this paper can be divided into two parts: close distance wireless communication and indoor positioning service. 1) this paper introduces the low-power Bluetooth technology and Wi-Fi technology. By combining these two technologies, the paper gives the design scheme of the close-range wireless communication: first, using low-power Bluetooth to establish the connection and transmit its own IP address to the other side; Then activate the Wi-Fi function module, both sides use network communication based on Socket to transmit data. This scheme combines the advantages of low-power Bluetooth technology and Wi-Fi technology, and can reduce the power consumption of file transfer process. It can effectively solve the problem of file transmission under the scenario of Internet server without access to Internet server through infrastructure network, and can meet the demand of wireless data transmission in close range. 2) this paper introduces the idea of "signpost" and routing protocol in Duke University's scheme, and puts forward a new indoor positioning scheme by using the latest iBeacon technology: placing the base station supporting iBeacon technology in the indoor environment. The iBeacon base station is used as the "invisible road sign" in the indoor environment. The indoor environment is divided into several different areas, each of which is managed by a iBeacon base station. The iBeacon base station can provide service to the users in the region. The indoor positioning scheme can provide the users with query, navigation, transmission location and other services. It has low power consumption, convenient layout, etc. Low cost, high positioning accuracy and other characteristics.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN92

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