摘要
针对复杂的井下环境,使用了基于非测距的无线传感器网络定位算法来实现井下人员的定位。为了实现精确定位,采用了基于两移动锚节点的定位算法。通过3个节点间的最短路径确定1条直线来尽可能减少定位节点的误差,同时避免因障碍物或其它因素的影响所造成的节点定位误差,最大程度上提高了定位精度。通过仿真表明节点定位的精度与两移动锚节点移动的圈数和圆的等分数有关,移动的圈数和圆的等分数越多节点定位的精确度就越高。
For complex underground environment,this article uses wireless sensor network location algorithm based on range-free to realize underground personnel location.In order to achieve accurate location,the paper adopts location algorithm based on two mobile anchor nodes.Through the shortest path among the three nodes to determine a straight line to minimize the error of location nodes,and at the same time,it can avoid the error of the nodes location caused by obstacles or other factors,and improve location accuracy maximumly.The simulation show that the precision of the nodes location are concerned with the cylinder number of two mobile anchor nodes and the round divided,the more of the cylinder number and the round divided,the higher of the precision of node location.
出处
《煤矿安全》
CAS
北大核心
2012年第11期110-112,共3页
Safety in Coal Mines
关键词
节点定位
锚节点
无线传感网络
最短路径
node location
anchor nodes
wireless sensor network
the shortest path
