基于边缘计算的建筑振动监测传感器应用研究  

Application Research of Edge Computing-based Vibration Monitoring Sensor for Buildings

作　　者：韩晓健[1,2] 徐晨栋 陈锡武 杨伟 HAN Xiaojian;XU Chendong;CHEN Xiwu;YANG Wei(College of Civil Engineering,Nanjing Tech University,Nanjing Jiangsu 211816 China;Nanjing Gongda Construction Technology Co.,Ltd,Nanjing Jiangsu 210009 China)

机构地区：[1]南京工业大学土木工程学院,江苏南京211816 [2]南京工大建设工程技术有限公司,江苏南京210009

出　　处：《江苏建筑》2024年第2期24-28,共5页Jiangsu Construction

摘　　要：既有建筑因结构和材料的老化动力性能发生变化,导致结构损伤、抗震性能下降。对建筑进行结构动力特性实时监测是及时获得结构动力性能变化的主要方法之一。目前,无线振动传感器已广泛用于建筑结构的振动监测中,但存在数据传输量大、对通信带宽要求高等问题。因此,设计了一种基于边缘计算的建筑结构无线振动传感器,该传感器包含振动加速度信号采集、滤波、时频域分析、房屋振动信号分析等计算,将运算后的结果上传至服务器端,极大减少了带宽和通信量。通过小型振动台验证试验表明:该传感器能精确计算振动频率、振动加速度和速度,并依据房屋鉴定规范进行判定和报警,解决了无线振动传感器数据传输量大、智能化程度低的问题,具备广阔的应用前景。Existing buildings undergo changes in dynamic properties due to aging of structures and materials,resulting in structural damage and reduced seismic performance.Real-time monitoring of structural dynamic properties of buildings is one of the main methods to obtain changes in structural dynamic properties in a timely manner.At present,wireless vibration sensors have been widely used in the vibration monitoring of building structures,but they have the problems of large data transmission and high requirements for communication bandwidth.Therefore,this paper designs a wireless vibration sensor for building structures based on edge computing,which contains calculations such as vibration acceleration signal acquisition,filtering,time-frequency domain analysis,and house vibration signal analysis,and uploads the results of the calculations to the server side,which greatly reduces the bandwidth and the communication volume.Through the small vibration table verification test shows that:the sensor can accurately calculate the vibration frequency,vibration acceleration and velocity,and make judgment and alarm according to the housing appraisal specification.It solved the wireless vibration sensor data transmission,low degree of intelligence,has a broad application prospects.

关 键 词：微控制器 边缘计算 建筑振动 结构健康监测 

分 类 号：TU311.3[建筑科学—结构工程]