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中文摘要：
为使随机部署的三维无线传感器网络中锚节点的分布更加合理,提高未知节点定位精度,针对锚节点部署进行优化.通过构建弹簧系统模型,将锚节点抽象为通过弹簧相连接的点,使部分锚节点在合力作用下进行伸缩运动,达到提高网络性能的目的.当锚节点部署优化完成后,应用近似三角形内点测试（APIT）和DV-HOP（Distance Vector-hop）算法测试优化前后的节点定位精度.仿真结果表明,三维空间下的锚节点经过弹簧系统模型的部署优化后,锚节点网络覆盖率和定位覆盖率均得到了提高,网络平均连通度有所提升,且定位精度显著提高.
英文摘要：
This paper proposes an optimal deployment algorithm of anchor nodes based on spring model system.The optimal deployment algorithm can improve location accuracy for randomly distributed three dimensional（3D ） wireless sensor networks, and the anchor nodes 爷 distribution is more reasonable. The algorithmabstracts the relationship of anchor nodes into dots and springs, and anchor nodes do concertina motion bythe resultant force. Approximate point- in-triangulation test （ APIT） algorithm and approximate point - intriangulationtest（ DV-HOP） algorithm are used to verify the optimized wireless sensor network. The simulationresults show that the anchor nodes 爷 network coverage and localization coverage are wider, and theconnectivity of networks is better, and the positioning accuracy is higher.
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