RSSI and LQI as distance determination are discussed in the Zigbee wireless sensor network.Based on analysis and derivation of the Weighted Centroid Localization（WCL） algorithm,a node localization algorithm combining Weighted Centroid Localization with Zigbee technology is proposed,and simulations and practice are carried out.Because of low complexity and fast computing and low-resource allocation features of Zigbee technology,the WCL algorithm is of very important significance of application in wireless sensor network positioning.%讨论了RSSI和LQI在Zigbee无线传感网络中的距离测定,在分析和推导加权质心定位（WCL）算法的基础上,提出了一种加权质心定位与Zigbee技术相结合的节点定位算法,并进行了模拟验证和实践。Zigbee技术的低复杂度、快速计算和低资源配置的特点,使得基于Zigbee的WCL算法在无线传感器网络定位中有非常重要的应用意义。
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