面向高铁钢轨应力广域监测的无线传感网系统架构及性能测试  

Architecture and performance test of wireless sensor network system for distributed stress monitoring in high-speed railway track

作　　者：王立鼎[1,2] 岳国栋[1] 徐征[1] 刘冲[1] 陈义[1] 赵悦璇 王天娆 

机构地区：[1]大连理工大学辽宁省微纳米技术及系统重点实验室,辽宁大连116085 [2]吉林大学机械科学与工程学院,长春130022 [3]苏州鼎汗传感网技术有限公司技术中心,江苏苏州215011

出　　处：《吉林大学学报（工学版）》2015年第6期1974-1979,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家'十二五'科技支撑计划重点项目(2011BAG05B02);中央高校基本科研业务费项目(DUT14LAB07)

摘　　要：建立了一种应用在高铁钢轨应力监测的无线传感网系统组成架构,它由数据采集层、通信及控制层、数据存储及分析层组成。提出了多传感节点信息的并行传输及处理方法,用于解决数据完整性和网络拓扑结构变化的即时响应等问题。利用关系型数据库和数据分析机构建数据存储和管理模式,管理及分析连续生成的数据。设计了'元信息捕获-本体映射-数据查询-数据获取-数据可视化'交互操作数据流,以实现设备分布和传感数据可视化。最后,在课题组架设于中国铁道科学研究院的钢轨应力监测无线传感网平台上,对建立的系统架构进行了性能测试,试验结果表明:系统架构应用在无线传感网上,丢包率小于5%,时延小于1min,能够满足高铁钢轨应力分布式监测的需求。A software architecture of wireless sensor network system,which consisted of data acquisition layer,control and communication layer and data storage and analysis layer, was established for distributed stress monitoring in high-speed railway track.A concurrent data processing method for the information from multi-sensor nodes was proposed to improve the key characteristics such as the data integrity and rapid response.The data storage and management model was constructed based on relational databases and data analysis machine to manage and analyze thecontinuously generated data.In addition,the data flow of the interactive manipulation for client software,called ＂ Metadata capture-Ontology mapping-Data acquisition-Data visualization＂,was designed to display the equipment distribution and sensing data.Finally,the software architecture was implemented on the wireless sensor network platform at the China Academy of Railway Science.Experiment results show that the packet loss rate was less than 5% and transmission delay was less than 1min.The performance of the WSN-based software architecture can satisfy the requirement of the distributed monitoring of high-speed rail stress.

关 键 词：计算机应用 无线传感网 钢轨应力监测 数据管理 可视化 

分 类 号：TP39[自动化与计算机技术—计算机应用技术] TP274[自动化与计算机技术—计算机科学与技术]