一种基于无线传感网络的实用性地下坑道定位方法  

Practical Localization Method Used for Underground Tunnel Based on Wireless Sensor Network

作　　者：韩屏[1] 李方敏[1] 吴学红[1] 

机构地区：[1]武汉理工大学信息工程学院,武汉430070

出　　处：《传感技术学报》2007年第10期2313-2318,共6页Chinese Journal of Sensors and Actuators

基　　金：博士点基金项目资助(20050497006);新世纪优秀人才支持计划资助(NCET-05-0657);湖北省青年杰出人才基金项目资助(2006ABB028)

摘　　要：各种地下作业都要求工人在地下坑道内进行施工,其工作环境比较恶劣.为了在事故导致工人被困地下时,能够快速确定幸存工人所处的位置,无线传感网络被应用于地下坑道环境定位.本文在对比分析现有经典测距、定位算法的前提下,针对地下坑道的具体环境提出了一种基于无线传感网络、采用无线射频信号测距、使用信标节点和目标节点,具有实用意义的地下坑道定位方法.详细论述了影响测距精度、定位精度的各种因素,根据节点硬件给出了定位精度的数值,对使用无线射频信号测距的可行性进行了论证.The workers are requested to work in tunnel when they do all kinds of the underground work, the working condition is very wicked. In order to ensure the location of the survival rapidly, the wireless sensor network is applied to localization in underground tunnel environment, when the accidents happened to cause the workers stranded underground. This paper puts forward a practical localization method used in underground tunnel based on comparing and analyzing the existing classic methods of measuring distance and localization aiming at the concrete environment of underground tunnel. This localization method is based on wireless sensor network and uses the wireless RF signal for measuring distance, and consists with the beacon nodes and object nodes. This paper discusses several factors that influencing the precision of measuring distance and localization, and it gives the value of localization precision according to node hardware. At last, the feasibility of measuring distance by wireless RF signal is demonstrated.

关 键 词：无线传感 定位 测距 地下坑道 射频 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]