光纤光栅列车计轴系统的数据采集与处理  

Data Acquisition and Processing for Fiber Grating Train Axle Counting System

作　　者：李维来[1] 潘建军[1] 范典[1] 

机构地区：[1]武汉理工大学光纤传感技术与信息处理教育部重点实验室,武汉430070

出　　处：《武汉理工大学学报》2009年第2期13-15,共3页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(60537050)

摘　　要：光纤光栅列车计轴系统是通过测量轮轴致使钢轨产生的应变进行轮轴计数的,其正常运行需要对应变数据进行准确处理。在对大量数据样本分析的基础上,制定了准确识别轮轴应变曲线峰值的约束条件,采用实时寻峰计数算法与此约束条件匹配,最终得到了适应现场多变的过车信号的算法,在京广干线连续千余次列车轮轴的计数正确率达到100%。Fiber axle counting system measures dynamic strain of rail to count the axle numbers,its correct operation should be assured by exactly data processing of the strain.Some constraint conditions based on analyzing enough data samples are established to accurately identify axle s peak strain graph.The real-time algorithm for counting axles by finding out peaks is adopted to match the constraint conditions,and it adapts the changeful signal finally.The accuracy of axle counting achieved 100 percent on continuou...

关 键 词：光纤Bragg光栅(FBG) 数据采集 数据处理 寻峰计数算法 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]