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针对无线传感器网络中节点的安全性及覆盖问题，提出基于无线传感器网络节点信任度的三维覆盖算法(three dimensional coverage algorithm based on node trust in wireless sensor network，NTA3D)，算法依据虚拟力、网格划分及节点信任度的思想，引入吸引源联合信任度。将待监测区域划分成网格，并在每个网格中心部署吸引源。吸引源可以根据网格中的活跃节点计算该网格的联合信任度，并根据联合信任度调度节点，调度结束后工作节点根据其所受合力的大小和方向重新部署。通过实验仿真，证明了算法能够在保证安全性的前提下有效地提高覆盖率，降低网络能耗。
Aiming at the problem of node security and coverage in wireless sensor networks, a three dimensional coverage algorithm based on node trust in wireless sensor network (NTA3D) is proposed. The algorithm is based on virtual force and meshing And the idea of node trust, the introduction of attracting the source of joint trust. Divide the area to be monitored into grids and deploy attraction sources at each grid center. The attraction source can calculate the joint trust degree of the grid according to the active nodes in the grid and schedule the nodes according to the joint trust degree. After the scheduling ends, the working nodes are redeployed according to the magnitude and direction of their resultant force. The experimental simulation proves that the algorithm can effectively improve the coverage and reduce the network energy consumption while ensuring the security.