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隧道建设(中英文) ›› 2021, Vol. 41 ›› Issue (4): 674-683.DOI: 10.3973/j.issn.2096-4498.2021.04.019

• 监控与维护 • 上一篇    下一篇

面向运营隧道结构健康监测系统大数据压缩感知研究

吴贤国1, 邓婷婷1, 陈彬1 *, 曾铁梅2, 陈虹宇3, 张凯南1   

  1. 1. 华中科技大学土木与水利工程学院, 湖北 武汉 430074 2. 武汉地铁集团有限公司, 湖北 武汉 430030;3. 新加坡南洋理工大学土木工程与环境学院, 新加坡 639798
  • 出版日期:2021-04-20 发布日期:2021-04-30
  • 作者简介:吴贤国(1964—),女,湖北武汉人,2006年毕业于华中科技大学,结构工程专业,博士,教授,主要从事地铁工程施工及管理研究工作。E-mail: wxg0220@126.com。*通信作者: 陈彬, E-mail: chen_c6411@hust.edu.cn。
  • 基金资助:
    国家重点研发项目(2016YFC0800208); 国家自然科学基金项目(71571078,  51778262,  51708241

Research on Compressed Sensing of Big Data for Structural Health Monitoring System of Operating Tunnel

WU Xianguo1 DENG Tingting1 CHEN Bin1 * ZENG Tiemei2 CHEN Hongyu3 ZHANG Kainan1   

  1. (1. School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China; 2. Wuhan Metro Group Co., Ltd., Wuhan 430030, Hubei, China; 3. School of Civil Engineering and Environment, Nanyang Technological University, Singapore City 639798, Singapore)
  • Online:2021-04-20 Published:2021-04-30

摘要: 为解决运营隧道健康监测系统中多节点传感器网络下高频采样带来的大数据储存和传输问题,在运营隧道结构健康监测系统数据采集和传输层引入传感器网络框架表示模型,对传统的压缩采样数据重构算法进行改进,用迭代方法求解最小化范数问题,提出基于传感器网络的压缩感知重构算法,并通过工程实例对提出的方法进行了验证。结果表明: 1)在一定采样率条件下,基于传感器网络的压缩感知重构算法可以有效地增加数据恢复的效率,加速度信号采样率越大其重构精度越高; 2)相同采样率条件下,基于传感器网络的压缩感知重构算法得到的重构数据精度要高于传统单节点压缩感知重构算法; 3)压缩采样率为60%以上时,信号重构误差不超过20%,符合工程应用标准; 4)基于传感器网络的压缩感知重构算法具有局限性,传感器节点个数存在耦合上限,当传感器节点超过6个时,重构信号的精度无明显变化。

关键词: 运营隧道, 结构健康监测, 大数据, 压缩感知

Abstract: The big data storage and transmission brought by highfrequency sampling under multinode sensor networks in operating tunnel health monitoring systems are of great significance. Hence, the framework representation model of a sensor network is introduced to the data acquisition and transmission layer of operating tunnel structural health monitoring system, the traditional compressed sampling data reconstruction algorithm is improved, the minimum norm problem is solved by an iterative method, and the compressed sensing algorithm based on sensor network is proposed. The proposed method is verified by an engineering example. The results show the following. (1) Under the condition of a certain sampling rate, the compression reconstruction algorithm based on the sensor network can effectively increase the efficiency of data recovery, and the higher the sampling rate of the acceleration signal, the higher the reconstruction accuracy. (2) Under the condition of the same sampling rate, the accuracy of the reconstructed data obtained from the compression reconstruction algorithm based on the sensor network is higher than that of the traditional single nodecompression perception reconstruction algorithm. (3) When the compressionsampling rate is above 60%, the signal reconstruction error is less than 20%, which conforms to the engineering application standard. (4) The reconstruction algorithm based on sensor networks has limitations: there is an upper coupling limit for the number of sensor nodes, and when the number of sensor nodes exceeds 6, the precision of reconstructed signals does not significantly change.

Key words: operating tunnel, structural health monitoring, big data, compression sensing

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