传感器网络目标恢复算法研究

Failure recovery research of target tracking based on hierarchical clustering in sensor networks

分析了传感器网络在目标跟踪过程中产生目标丢失故障的原因.在此基础上采用分簇设计思想,通过对跟踪目标移动速度的计算和目标搜寻区域的建立等方法,提出了目标丢失故障恢复新的算法和技术.实验证明,所提出的算法和技术在延长传感器网络生存时间前提下,能够有效地解决跟踪目标发生丢失故障后目标快速恢复问题.

The reason of not being able to find the moving target during tracking is first discussed. Then by taking advantage of hierarchical clustering structures, the paper presents an optimized recovery algorithm to track moving targets to determine the speed of the target and the search region when they cannot be found. Fi- nally, it is shown by simulations that the proposed algorithm is effective in extending the network lifetime and performing a quick recovery. By comparing simulation result with that of another algorithm, the improvement of the proposed algorithm is demonstrated in energy efficiency.