大坝廊道无线传感器网络节点布局优化

Nodes layout optimization of WSNs in dam corridor

为满足灌浆过程智能化监控要求,综合考虑无线传感器网络的有效覆盖率以及节点能量均衡消耗,研究了大坝廊道复杂环境无线传感器节点布局方法。通过改进LEACH协议,对廊道内无线传感器节点网络节点分蔟策略和布局方法进行了分析;将影响簇头选举的因素:节点间距离、节点剩余能量和节点到基站的距离作为研究对象,研究了簇头选举策略,提出了基于权值的无线传感器节点布局方法:通过计算各因素所占比重,优化选举公式,选取最合理的簇头节点。结合现场实验对网络剩余节点数、网络能耗以及数据传输能力进行了对比分析,实验证明:在灌浆廊道施工条件下,基于权重和有效网络覆盖率的无线传感器网络节点布局方法适用于灌浆廊道通信。

In order to meet the need of intelligent monitoring in grouting engineering,considered the effective coverage rate of wireless sensor networks(WSNs)and the energy consumption of nodes,the layout method of wireless sensor nodes in complex corridors is studied.the cluster node strategy and layout method of the wireless sensor node in the corridor be analyzed through improvement the LEACH protocol.The factors influencing the cluster head election include the distance between the node and the neighbor node,the residual energy of the node and the distance from the node to the base station as the research object,studied the cluster head election strategy and puts forward the weight-based wireless sensor node layout method which improves the LEACH protocol.By calculating the proportion of each factor and optimizing the election formula,the most reasonable cluster head node is selected.Combined with field experiments,a comparative analysis for the performance of the remaining nodes,network energy consumption and data transmission capacity is carried out.Experiments show that under the construction condition of grouting corridor.The node layout method for wireless sensor networks based on weight and effective network coverage is suitable for grouting corridor communication.