中文摘要：

随着物联网技术的发展和普及,越来越多的科研人员投入到了传感器技术的研究与探索上,尤其在无线传感器网络定位技术上,近年来成果突出。本文在这样的背景下,基于RSSI的质心定位算法提出一种改进的质心定位算法,探讨了未知节点与锚节点的关系,将已定位的未知节点作为新的锚节点的方法,很好的利用了未知节点帮助定位,通过仿真证明了新的定位算法比原质心定位算法有明显改进,获得了较好的定位精度

英文摘要：

With the development and popularization of the Intemet of Things technology, more and more researchers explore and re- search into the sensor technology, especially in the wireless sensor network positioning technically, the results is highlight in recent years, In this paper, Based on RSSI WSN eentroid localization algorithm proposed an improved algorithm, to explore the relationship between the unknown node and anchor node and the unknown node positioning method as a new anchor nodes, take good use of the un- known node help us to locate. Through the simulation prove that the new positioning algorithm modified to achieve better positioning ac- curacy than the original centroid localization algorithm