中文说明：资源描述质心定位算法是WSN中的基础定位算法，如果接受节点接收到的包数目与发送节点发送的包数目的比值大于阈值,则这两个节点视为邻居节点，未知节点一旦被定位就充当起锚节点的功能，向周围邻居发送自己的估计坐标信息。
English Description：
Application backgroundThe centroid localization algorithm based localization algorithm in the WSN package, if the number of the ratio of the receiving node received packet number and sending node is greater than the threshold, the two nodes as the neighbor nodes, the unknown node once positioned to serve as anchor node function, to estimate the coordinate information of neighbors to send their own.