针对无线传感器网络环境下运动目标跟踪问题,采用簇-树层次型的网络拓扑模型,提出了一种在该模型中改进的各传感器节点的工作机制.详细介绍了模型中节点的工作流程,并通过无线传感器网络中的能量模型方程与原节点工作机制中能量消耗进行比较,实现对网络中运动目标的跟踪.结果表明在不影响跟踪精度的条件下,改进的工作机制可以有效降低通信能量的开销.
Considering the moving target tracking problem under wireless sensor network environment,we propose an improved working mechanism of each sensor node by using a cluster-tree hierarchical network topology model.We also describe the work process of the nodes in the model.The moving target tracking is realized after the comparison of the energy consumption in the original nodes working mechanism and the energy model equation in the wireless sensor networks.The results show that under the conditions that won′ t affect the tracing accuracy,the improved working mechanism can reduce the cost of energy in communication.