基于LoRa无线通信的分布式桥梁监测系统设计  

Design of distributed bridge monitoring system based on LoRa wireless communication

作　　者：李权接 赵延明[1] 张泽瑞 姚迪 谷振宗 LI Quanjie;ZHAO Yanming;ZHANG Zerui;YAO Di;GU Zhenzong(School of Information and Electrical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China)

机构地区：[1]湖南科技大学信息与电气工程学院,湖南湘潭411201

出　　处：《传感器与微系统》2021年第1期104-106,109,共4页Transducer and Microsystem Technologies

基　　金：湖南省大学生创新创业训练计划项目(S201910534007)。

摘　　要：采用远距离无线电(LoRa)无线通信构建分布式桥梁监测系统,运用声发射技术对桥梁进行数据采集,并由无线通信传送数据给上位机,再通过到达时间差(TDOA)定位算法确定缺陷大小、位置、危险等级等,及早发现事故隐患,采取有效措施,避免事故发生。实验运行表明:该系统性能稳定、操作方便简单、成本低,为桥梁事故预测提供了新的解决方案。Using LoRa wireless communication to build a distributed bridge monitoring system,using acoustic emission technology for data collection,and transmits data to the host computer by wireless communication.Then,the time difference of arrival(TDOA)positioning algorithm is used to determine the defect size,location,and hazard level,and early hidden dangers are found,and effective measures are taken to avoid accidents.The experimental operation shows that the system has stable performance,convenient operation and low cost,and provides a new solution for bridge accident prediction.

关 键 词：桥梁监测系统 远距离无线电(LoRa) 分布式 声发射 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]