列车底部内腔粉尘漫反射监测方法及轨迹分析  

A Monitoring Method for Dust Diffuse Reflectionin the Inner Bottom Cavity of Trains and Trajectory Analysis

作　　者：杨则云 盖增杰 周伟[1,2] 李文辉[1,2] 单永林 YANG Ze-yun;GAI Zeng-jie;ZHOU Wei;LI Wen-hui;SHAN Yong-lin(School of Traffic&Transportation Engineering,Central South University,Changsha 410075,China;Key Laboratory of Traffic Safety on Track(Central South University),Ministry of Education,Joint International Research Laboratory of Key Technology for Rail Traffic Safety,National&Local Joint Engineering Research Center ofSafety Technology for Rail Vehicle,Central South University,Changsha 410075,China;CRRC Qingdao Sifang Co Ltd,Qingdao 266111,China)

机构地区：[1]中南大学交通运输工程学院,湖南长沙410075 [2]中南大学轨道交通安全教育部重点实验室,轨道交通安全关键技术国际合作联合实验室,轨道交通列车安全保障技术国家地方联合工程研究中心,湖南长沙410075 [3]中车青岛四方机车车辆股份有限公司,山东青岛266111

出　　处：《五邑大学学报（自然科学版）》2018年第3期31-36,共6页Journal of Wuyi University(Natural Science Edition)

基　　金：国家重点研发计划资助项目(2017YFB1201204)

摘　　要：高速列车底部内腔粉尘对车下设备功能产生重要影响,科学捕捉粉尘来源是解决问题的关键.本文提出阵列平行光束粉尘漫反射监测方法,在关注区域粉尘运动的路径上布置阵列平行LED直射光源,沿运动路径及阵列光源所在平面法向设置高清摄像机,借助细灰粉尘的光照漫反射原理,通过机器视觉识别,捕捉粉尘漫反射进入摄像机镜头的粉尘光点,实时监测粉尘的运动轨迹.结果表明:所提出的基于平行光束的粉尘漫反射运动轨迹捕捉方法有效解决了高速列车关键区域内流场携沙的运动跟踪难题,具有重要的工程应用意义.Dust in the bottom inner cavity of high speed trains has a major impact on the function of the bottom equipment of cars and scientifically capturing the source of dust is the key to solving the dust problem.In this paper,an array parallel beam dust diffuse reflection monitorin g method was proposed.An array parallel LED direct light source was arranged on the dust movement path in the interested area,high definition cameras were deployed along the movement path and perpendicular to the plane of the array light source.According to the principle of diffuse reflection of fine ash dust,machine vision recognition was used to capture the dust spots from the diffuse reflection and to monitor the dust trajectory in real-time.The results show that this method can effectively solve the problem of movement tracking of high-speed trains running in the key area with flow field sand,and has important significance in engineering.

关 键 词：粉尘运动追踪 漫反射 平行光束 视觉监测 高速列车 

分 类 号：U225.1[交通运输工程—道路与铁道工程]