基于ZigBee技术的定位系统研究与设计

发布时间：2018-05-27 01:01

本文选题：定位 + Zig　；参考：《牡丹江师范学院》2016年硕士论文

【摘要】：在办公楼宇、商场、比赛场馆、监狱、养殖场等场所,活动者的位置信息越来越受到重视,从安防需求或数据价值挖掘等角度看地理位置信息具有越来越重要的作用。在移动互联网时代,基于位置信息的社交越来越影响着人们的生活。目前室外定位技术已比较成熟,室内定位技术尚有很大的发展空间。基于近距离无线通信技术的室内定位,尤其是Zig Bee因其低成本、低功耗、自组网、安全性好等特点受到研究者的青睐。本文主要针对基于Zig Bee的室内定位系统这个课题进行研究,搭建了一套软硬件结合的定位系统。硬件方面设计Zig Bee通讯模块,主要包含供电电路、时钟电路、天线匹配、串口通信电路等方面。软件方面创建了Zig Bee网状网络,实现所有待定位节点和固定参考节点之间相互通信,读取信号衰减强度指示值(RSSI),利用无线信号在传播中的衰减特性转换为距离信息,结合几何定位算法实现对待定位目标的定位,为了方便管理和实时显示,还设计了基于Lab VIEW的上位机。设计完成后,进行了一系列测试实验:登录系统验证实验,组网通讯功能验证实验,数据传输协议验证实验、无线信号在传播过程中的强度衰减实验探究,综合定位实验,实验证明本系统实现了基于Zig Bee的室内定位功能,对研究定位技术具有一定的参考价值。
[Abstract]:In office buildings, shopping malls, competition venues, prisons, farms and other places, the location information of the activists has been paid more and more attention. From the point of view of security requirements or data value mining, geographical location information plays an increasingly important role. In the era of mobile Internet, social interaction based on location information is increasingly affecting people's lives. At present, outdoor positioning technology has been more mature, indoor positioning technology still has a lot of room for development. Indoor location based on close-range wireless communication technology, especially Zig Bee is favored by researchers because of its low cost, low power consumption, ad hoc network and good security. This paper mainly focuses on the research of indoor positioning system based on Zig Bee, and builds a set of hardware and software combined positioning system. Hardware design of Zig Bee communication module, including power supply circuit, clock circuit, antenna matching, serial communication circuit and so on. In the aspect of software, the Zig Bee mesh network is created to realize the communication between all the nodes to be located and the fixed reference nodes. The signal attenuation intensity indication is read and the attenuation characteristic of the wireless signal is converted to the distance information by using the attenuation characteristic of the wireless signal in the propagation. In order to facilitate management and real-time display, a host computer based on Lab VIEW is designed. After the completion of the design, a series of test experiments were carried out: login system verification experiment, networking communication function verification experiment, data transmission protocol verification experiment, intensity attenuation experiment of wireless signal in the process of transmission, comprehensive positioning experiment, The experiment shows that the system realizes the indoor positioning function based on Zig Bee, and has certain reference value for the research of positioning technology.
【学位授予单位】：牡丹江师范学院
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN92

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