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Development of wireless smart sensor network for vibration-based structural health monitoring of civil structures
Structure and Infrastructure Engineering ( IF 3.7 ) Pub Date : 2020-11-30 , DOI: 10.1080/15732479.2020.1850801
Niusha Navabian 1 , Sherif Beskhyroun 1 , Justin Matulich 1
Affiliation  

Abstract

This paper introduces a wireless smart sensor network to meet the requirements for measuring low-amplitude ambient and sudden event monitoring of civil structures. The developed sensor platform consists of a high-sensitive sensing component for high-fidelity vibration measurements and a reliable event detection switch through a trigger accelerometer to detect and record sudden events. Particularly, the hardware of the sensor nodes was designed to provide high resolution and sensitivity, low noise, low power consumption, and the ability to measure the structural vibration in ultralow-power in long term to record sudden events. Also, the software architecture of the smart nodes was implemented to provide accurate time synchronisation and reliable event-triggered sensing with high resolution. To test the sensor performance, a series of experimental and field tests was conducted on a bridge model using shake table and an in-service highway viaduct. Also, the dynamic performance of the viaduct was assessed using its modal parameters. The results showed that the wireless smart sensor node is able to detect and record sudden events and provide high-fidelity structural responses and synchronised wireless network for structural condition monitoring. In addition, it was observed that the overall dynamic condition of the viaduct has no significant changes.



中文翻译:

基于振动的土木结构健康监测无线智能传感器网络的开发

摘要

本文介绍了一种无线智能传感器网络,以满足低振幅环境测量和土木结构突发事件监测的要求。开发的传感器平台由用于高保真振动测量的高灵敏度传感组件和通过触发加速度计的可靠事件检测开关组成,以检测和记录突发事件。特别是,传感器节点的硬件设计为提供高分辨率和灵敏度、低噪声、低功耗,以及长期超低功耗测量结构振动以记录突发事件的能力。此外,还实施了智能节点的软件架构,以提供准确的时间同步和可靠的高分辨率事件触发传感。为了测试传感器性能,使用振动台和在役高速公路高架桥对桥梁模型进行了一系列实验和现场测试。此外,使用其模态参数评估了高架桥的动态性能。结果表明,无线智能传感器节点能够检测和记录突发事件,并为结构状态监测提供高保真结构响应和同步无线网络。此外,据观察,高架桥的整体动态状况没有显着变化。结果表明,无线智能传感器节点能够检测和记录突发事件,并为结构状态监测提供高保真结构响应和同步无线网络。此外,据观察,高架桥的整体动态状况没有显着变化。结果表明,无线智能传感器节点能够检测和记录突发事件,并为结构状态监测提供高保真结构响应和同步无线网络。此外,据观察,高架桥的整体动态状况没有显着变化。

更新日期:2020-11-30
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