Subway structure health monitoring system based on internet of things

被引：2
作者：
Li, Zhao-qi [1 ]
Zhang, Jian-hua [2 ]
Dong, Jie [1 ]
机构：
[1] Hebei Univ Architecture, Coll Civil Engn, Zhangjiakou 075000, Hebei, Peoples R China
[2] Harbin Engn Univ, Harbin 150001, Heilongjiang, Peoples R China
来源：
STRUCTURES | 2024年 / 61卷
关键词：
Operational metro; Structural health monitoring; Internet of things; BIM; Sensor network; Big data; Wavelet packet transform; CONSTRUCTION; MANAGEMENT; TECHNOLOGY; FRAMEWORK; MACHINE;
D O I：
10.1016/j.istruc.2024.106112
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The present study advances the metro structure monitoring system, which has been hindered by technological constraints limiting the comprehensive and precise collection of vital data from shield tunnels. We introduce a metro tunnel health advisory system that leverages a compressed sensory reconstruction algorithm and wavelet transform to integrate and alert the 3D model of metro tunnels. Additionally, we propose a novel wavelet packet spectrum multi -threshold noise reduction method, based on the categorization of the wavelet packet spectrum and a threshold criterion for signal noise reduction. Our findings reveal that the threshold UL enables precise determination of the structure's damage state. Moreover, the BIM -based IoT metro health monitoring system has been effectively deployed in Wuhan Metro Line 3's monitoring project, proving the technique's capability to accurately trace the full progression of structural damage. This approach offers fresh insights for designing primary content, selecting transmission schemes, analyzing early warnings, and visualizing the health monitoring system of operational tunnels.
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页数：14
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