With the large-scale application of wireless sensor network, the position information of sensor nodes is more and more important. The position information of the unknown nodes are mainly depended on the beacon node the in wireless sensor network. First, the concept and characteristics of wireless sensor networks of the positioning technologies are briefly described. Then, the calculation methods of existing node positioning technologies are introduced. Next, the wireless sensors are described in detail from two aspects: range-based and range-free. Finally, summarizes the possible defects of positioning technology and looks forward to the future development of the node positioning technology.

随着无线传感器网络的大规模应用，传感器节点的位置信息越来越重要。未知节点的位置信息主要取决于无线传感器网络中的信标节点。首先，简要描述定位技术的无线传感器网络的概念和特性。然后介绍了现有节点定位技术的计算方法。接下来，从两个方面对无线传感器进行详细描述：基于范围的和无范围的。最后，总结了定位技术可能存在的缺陷，并展望了节点定位技术的未来发展。