基于光纤光栅传感技术的高速铁路轨道状态远程监测数传系统

摘要

T he remote monitoring system of high speed railway track based on fiber bragg grating sensing technique was introduced in this paper. Data acquisition,processing and transmission method of system in detail,including data reading,data pretreatment and wireless transmission network were expounded. In order to solve real-time wireless transmission problem of large flow monitoring data,data processing and wireless transmission scheme for fiber bragg grating wavelength demodulation system was proposed,which could automatically encrypt,check and package the monitoring data and transfer the data to remote data center through GPRS module. T his system has been applied to a lot of long term monitoring sites of high speed railway track,which shows good operation state and has reliable data transmission system.%介绍了基于光纤光栅传感技术的高速铁路轨道状态远程监测系统的构成，详细阐述了系统的数据采集、处理和传输方法，包括数据的读取、预处理及无线网络等相关技术方法。针对大流量监测数据实时无线传输的瓶颈问题，提出光纤光栅解调系统数据处理和无线传输的方案，可对监测数据自动进行加密、校验和打包，并通过 GPRS模块将监测数据推送至远端数据中心。该系统已应用于我国多处高速铁路轨道状态长期监测工点，系统运行状态良好，数据传输系统稳定可靠。