针对无线传感器网络在三维空间应用场景，基于Bounding Cube算法，提出一种基于锚球交域重心的无线传感器网络三维定位算法，通过求解相交球区域重心，确定未知节点可能的定位坐标位置。算法通过降维处理，简化了计算的复杂度。仿真结果表明，在10 m×10 m×10 m的区域内随机部署1000个传感器节点，锚节点比例由4%增加到10%的过程中，算法的定位精度比Bounding Cube算法平均提升了48.93%，仅需40个锚节点，就能将定位误差降低到31.96%。%The paper presents a three-dimensional positioning algorithm about wireless sensor network based on Bounding Cube algorithm with cross domain gravity center of anchor balls. The algorithm calculats the possible position of the unknown node by solving intersect ball regional gravity center. The algorithm simplifies complexity of the calculation with dimensionality reduction. Simulations result shows that when 1,000 sensor nodes are deployed randomly within the region in a confine of 10 m×10 m×10 m, the positioning accuracy of the algorithm on average rise up 48.93 percent compares to Bounding Cube algorithm when the proportion of anchor nodes rising from 4 percent to 10 percent. It only uses 40 anchor nodes to lower the position error to 31.96%.
展开▼
