【作者】 陈红波；

【导师】 李战明；

【作者基本信息】 兰州理工大学 ， 检测技术与自动化装置， 2006， 硕士

【摘要】 大型桥梁健康监测及其数据采集系统目前在桥梁的施工及其运营中是一个比较新的研究方向,其内容涵盖了桥梁结构设计分析和自控领域数据采集两大方面,根据桥梁监测系统的特点,通常采用分布式采集的方法。本文结合国内外的研究实例,针对国内大型桥梁健康监测系统近几年的蓬勃发展,力争系统地对分布式数据采集在桥梁健康监测的应用做一个较为全面的研究。 在总结了健康监测中常用的各种传感器输入输出以及采集要求的基础上,单独将这部分传感器数据转换设计为数据采集的前端模块。根据不同的桥梁结构和监测要求,主要设计了基于RS485和工业以太网两种总线的智能调理器设备,智能调理器用于将传感器的数据传送到总线上,以一定的协议和远程监测站通信,这种总线系统减少了施工的工程量,提高了数据的采集精度。文中详细分析了基于这两种智能调理器的数据采集系统设计,智能调理器及其相关设备的软硬件设计。最后一章还简要分析了健康监测中用到的其它数掘采集方案。目前这些设备已经在实际中得到良好的运用。更多还原

【Abstract】 The system of health monitoring and data acquisition for large bridge is a new research direction in Construction and running of bridge at present, it includes the structure design analyze of bridge and data acquisition of automatic domain, according to the system’s character of bridge monitoring, the distributed system is often used. With the sample of research in both here and abroad, a full-scale research of data acquisition has been made in the application of bridge health monitoring according to the development of domestic monitoring system.A front module of data acquisition has been designed based on the I/O of all kinds of sensors and requirement of collection. Two smart conditioners also have been designed according to the different requirement of the bridge structure and monitoring content, the smart conditioner send the data of sensor to the LAN and communicate with the long-distance station, this LAN system reduce the amount of work and improve the acquistion precision of data. The data acquisition system based on two smart conditions and the device of smart conditioner and its correlation have been analyzed. The other data acquisition project has been analyzed in the last chapter. This device has been used in the actual project.更多还原