基于无线传感网络的井下区域定位算法

煤矿坑道工作环境恶劣,安全隐患众多。事故发生时,为及时确定工作人员的位置信息,保证人员的生命财产安全,采用无线传感网络技术,分析比较现有成熟的定位方法,针对坑道复杂的环境,以RSSI测距的多元回归模型为基础,利用信标节点的距离差分信息,对信标节点确定的目标节点距离信息修正,并结合三边定位算法,提出一种煤矿区域差分定位算法。实验证明该算法无需较多的信标节点就能保证很高的定位精度,以该算法为核心的定位系统能够适用于坑道环境。

Local Area Localization Algorithm for Underground Tunnel Based on WSN

The working condition is atrocious and has many hidden safety dangers in coal mine tunnel.When accident happens,to find the miners location rapidly and ensure the safety of the miners,analyzes and compares the existing methods of localization,adopts the wireless sensor network technology,puts forward a practical localization method used in coal mine through combining the trilateration localization algorithm.This algorithm corrects the target node distance determined by the beacon nodes based on the difference distance of beacon nodes and the multiple regression model of RSSI.The experiments show that the localization precision is high though the beacon nodes are not many.On the foundation of the algorithms,the localization system is fit for the wicked environment of coalmine tunnel.