大型桥梁结构振动强度监测仿真研究  

Simulation Study on Vibration Intensity Monitoring of Large Bridge Structures

作　　者：郭宗莲[1] 刘志强[2] GUO Zong - lian LIU Zhi - qiang(College of Electrical and Automation Engineering,Jiangsu Maritime Institute,Nanjing Jiangsu 211170,Chian CCCC Highway Consultants Co. , Ltd. ,Beijing 100088, Chian)

机构地区：[1]江苏海事职业技术学院电气与自动化工程学院,江苏南京211170 [2]中交公路规划设计院有限公司,北京100088

出　　处：《计算机仿真》2017年第10期414-417,444,共5页Computer Simulation

基　　金：国家国际科技合作专项项目(2015DFG82080);高性能土木工程材料国家重点实验室开放基金(2016CEM003)

摘　　要：对大型桥梁的振动强度进行监测,能够有效提高桥梁安全系数。对桥梁结构的振动强度监测,需要选择合适的信道和网络标识符,对无线节点进行采集等。传统方法需要对桥梁的重要部位进行监测,进而对桥梁的结构状态进行综合评价,但忽略了对无线节点进行采集等,导致监测精度偏低。提出基于无线传感器系统的大型桥梁结构振动强度监测方法。首先确定汇聚节点,汇聚节点可对周围环境进行自动侦测,可根据需要选择合适的信道和网络标识符,对无线节点进行调理和采集、本地存储,并通过无线网络将数据上传到父节点,由父节点继续上传到根节点,然后由根节点继续远程上传到监控中心。仿真结果表明,基于该无线传感器的结构监测系统具有准确度高、操作方便、实时性好、同步开销低等特点,在大型桥梁结构监测及状态评估领域中有广阔的应用前景。In this paper, we propose a method for monitoring vibration intensity of large bridge structure based on wireless sensor system. Firstly, sink node was determined. Surrounding environment can be automatically detected by sink node and appropriate channel and network identifier were chosen as needed. Then wireless nodes were adjusted, collected,and stored locally. Moreover, data were uploaded to father node through wireless network, then they were uploaded to root node form father node. Finally, they were remotely uploaded to monitoring center from root node. The conclusion can be drawn from simulation results that the structure of monitoring system based on wireless sensor has high accuracy, convenient operation, good real - time performance and low synchronization overhead. It has broad application prospects in the field of monitoring of large bridge structure and condition assessment.

关 键 词：桥梁结构 振动强度 监测 

分 类 号：TP274.4[自动化与计算机技术—检测技术与自动化装置]