基于可靠性在结构健康监测系统中的备份点布控研究  

Research on reliability-based backup node deployment instructural health monitoring system

作　　者：诸震亚 邵方明[1] ZHU Zhenya;SHAO Fangming(East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学,上海200237

出　　处：《现代电子技术》2019年第4期148-152,共5页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(61040040)~~

摘　　要：为了优化备份传感器在结构健康监测系统中的部署,引入点失效模型可靠性方法来评估网络性能,并考虑一个优化问题:如何部署最少的备份传感器,使得网络的可靠性确定阈值R0。文中首先将位置拓扑转化为无线传感器网络拓扑同时保持其可靠性;提出一种提高网络可靠性的方法并证明了类Ω(n,m)的可靠性上界;给出备份传感器的优化策略,即INR-R0算法。仿真实验结果表明,在实际建筑物网络结构中,与BSP器就可保证网络的可靠性超过阈值R0。In order to optimize the deployment of backup sensors in the structural health monitoring system,the node failure model reliability approach is introduced to evaluate network performance.An optimization problem is considered that how to make the network reliability determine the threshold R0 with the fewest backup sensors deployed.The location topology is converted to the wireless sensor network topology while preserving the network reliability.A method of improving network reliability is proposed,and the upper bound for the reliability of the classΩ(n,m)is proved.The optimization strategy of backup sensors is given,which is called the INR-R0 algorithm.The results of the simulation experiment show that in comparison with the BSP and FEM algorithms,the INR-R0 algorithm can ensure that the network reliability exceeds the threshold R0 when only a few backup sensors are added in the actual building network structure.

关 键 词：结构健康监测 点失效模型 无线传感器网络 网络性能 优化策略 可靠性 

分 类 号：TN929.5-34[电子电信—通信与信息系统]