Method and Application of Rail Longitudinal Displacement Rapid Measurement System
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.
CWRmonitoring systemfield testlongitudinal displacement of railimage recognition
NETL
NSTL
万方数据
