Localization is an important support technology of Wireless Sensor Networks.About the existing protocols such as RSSI

three border localization and weighted centric algorithm

more consideration are taken to the precision and planar network

which bring larger energy consumption.A low overhead target localization protocol of WSNs based on dynamic clustering is implemented

fully taking characteristics of WSNs such as network topology and limited power into account.The algorithm of target tracking based on dynamic clusters in coal mine is divided into three parts

that is network initialization

target tracking of dynamic clusters and cluster regrouping.Both the performance analysis and experimental results show that cluster formation of a successful relationship between probability and weight and the relation of target tracking precision in different scene.This algorithm reduces synchronization energy consumption and improves the precision

so it can be used for WSNs in coal mine.