【作者】 周敏；

【导师】 张旭苹；

【作者基本信息】 南京大学 ， 光学工程（专业学位）， 2014， 硕士

【摘要】 声屏障作为控制高速铁路噪声污染的重要措施之一,已经广泛应用于周围有敏感建筑的铁路两侧。但是声屏障由于长期受高速列车运行时的风压作用,容易产生变形、倾覆等故障,威胁了高铁的运行安全。鉴于声屏障工程在高速铁路建设中的关键作用,维护好声屏障安全成为了保障人们安全出行和提高沿线居民生活质量的重要前提。目前声屏障仅依靠人工进行周期性的检查,不具备在线监测故障、实时报警的功能。因此,有必要构建一个针对声屏障的故障监测系统,并且可在系统基础上实现智能监控。本文根据实际声屏障故障监测的需求,提出了融合布里渊光时域反射(Brillouin Optic Time-Domain Reflectometer, BOTDR)技术和地理信息技术的高铁声屏障形变监测信息系统,本系统作为整个声屏障监测工程的远程监控软件部分,实现了BOTDR光纤位置信息与声屏障地理位置信息的配准、BOTDR监测结果的可视化以及对BOTDR的远程控制。系统采用C#语言予以软件实现,主要功能模块包括文件管理、监测数据管理、仪器参数设置、监测曲线显示、仪器远程控制等。数据库采用MySQL Server 5.5,设计了光纤分段信息表、监测应力信息表、采集卡参数表、微波源参数表等数据表来存储数据。通过该信息系统维护人员可以直观地看到声屏障的安全状况,最终为声屏障的维护提供了保障,对降低其维护成本具有重要意义。更多还原

【Abstract】 Sound barrier as one of the important measures for control the noise pollution of high speed railway, has been widely used in railway with sensitive buildin(?)ound on both sides. However, due to the sound barrier was long-te(?).xtected by the pulsating wind pressure which caused by high-speed train running, the sound barrier is prone to deformation, overturning accident, even become a threat to the high-speed railway. With the construction of the sound barrier in the key role of high-speed railway construction, maintenance of sound barrier security has become the important premise to protect the safety of people and improve the quality of life of residents along the railway. At present, the sound barrier only rely on artificial periodic inspection, do not have the online fault monitoring and real-time alarm function. Therefore, it is necessary to build a fault monitoring system for sound barriers, and can implement intelligent monitoring based on the system.In this paper, according to the practical requirements of fault monitoring of noise barrier, and puts forward the deformation monitoring information system of high-speed railway combined BOTDR technology and geographic information technology. This system as the remote monitoring software in the whole sound barrier monitoring project, realize the registration of optical fiber position information and the sound barrier location information, the visualization of the monitoring results of BOTDR, and the remote control on BOTDR. The system is implemented using C#, the main function modules include file management, monitoring data management, parameter settings of the instrument, monitoring curve display, remote control of the instrument and so on. Database using MySQL Server 5.5 to store data, and designs the tables such as fiber segment information table, monitoring stress information table, acquisition card parameters table, microwave source parameters table and so on. Through the information system maintenance personnel can intuitively understand the safety status of the sound barrier, finally provides the guarantee for the maintenance of sound barriers, and it is of great significance for the reduce of maintenance cost.更多还原