摘要
钢轨纵向位移是无缝线路状态演变的典型表现,监测钢轨纵向位移情况成为无缝线路养护维修的重点工作。然而,目前常用的无缝线路状态监测方法均基于固定式设备,大多存在成本高、精度差的弊端,且较难实现快速监测。开发设计一种动态的无缝线路钢轨爬行快速测量系统,基于机器视觉技术,对轨标和道旁基标图像进行特征提取,并通过对轨道场景进行还原和追踪,实现对无缝线路状态的监测。通过系统在现场的应用测试验证了该监测方法良好的适用性,在现场试验中钢轨纵向位移的测量精度可控制在±1 mm范围内,满足监测要求。该系统提高了无缝线路养护维修作业效率,降低了人工劳动强度,可为无缝线路科学精细化管理提供借鉴。
Longitudinal displacement of rail is a typical manifestation of the evolution of CWR state,and monitoring the longitudinal displacement of rail has become the key work of CWR maintenance.However,the current commonly used CWR state monitoring methods are based on fixed equipment,most of which have the disadvantages of high cost and poor accuracy,and it is difficult to realize rapid monitoring.This paper develops and designs a dynamic CWR rail creeping rapid measurement system.Based on machine vision technology,the features of track signs and trackside benchmark images are extracted,and the CWR state is monitored by restoring and tracking the track scenario.The good applicability of this monitoring method is verified by the field application test of the system,and the measurement accuracy of rail longitudinal displacement can be controlled within±1 mm in the field test to meet the monitoring requirements.The system improves the efficiency of CWR maintenance and reduces labor intensity,which can provide references for scientific and refined management of CWR.
作者
王波
杨展
肖杰灵
杨立
杨荣山
WANG Bo;YANG Zhan;XIAO Jieing;YANG Li;YANG Rongshan(Yibin Track,Communication&Signaling and Power Supply Depot,China Railway Chengdu Group Co.,Ltd.,Yibin Sichuan 644000,China;School of Civil Engineering,Southwest Jiaotong University,Chengdu Sichuan 610031,China;Sichuan Baolu Technology Co.,Ltd.,Chengdu Sichuan 610041,China)
出处
《中国铁路》
北大核心
2024年第3期17-24,共8页
China Railway
关键词
无缝线路
监测系统
现场试验
钢轨纵向位移
图像识别
CWR
monitoring system
field test
longitudinal displacement of rail
image recognition
