From Point Clouds to Predictive Maintenance: A Review of Intelligent Railway Infrastructure Monitoring [PDF]
SensorsPoint cloud technology, characterized by its high-precision 3D geometric acquisition in complex railway environments, has become a cornerstone for the intelligent detection, monitoring, and maintenance of railway infrastructure.
Yalin Zhang +6 more
doaj +2 more sources
Rail Light-Strip Abnormality Analysis from Color Inspection Images Using an Improved SegFormer and Geometric Rules [PDF]
SensorsRail light-strip morphology reflects the wheel-rail contact condition. Reliable automatic analysis remains difficult. The strip is narrow and has weak boundaries, while specular reflection, rail-head texture and trackside background interfere with color ...
Haoran Song +8 more
doaj +2 more sources
Cross-View Measurement of Adjacent Fastener Bolt Spacing in Railway Turnouts Using Dual DLP Sensors Without Overlapping Fields of View [PDF]
SensorsTo measure the cross-view spacing between adjacent fastener bolts in railway turnouts, this study develops a dual-DLP-sensor structured-light measurement system without overlapping fields of view.
Yuntao Gou +9 more
doaj +2 more sources
The Management of Railway Operations during the Planned Interruption of Railway Infrastructure
InfrastructuresA planned interruption of railway infrastructure is a situation where the operation of the track line or the operation of railway transport is limited. If there is also a restriction on the railway infrastructure, it means there will be complications not
Zdenka Bulková +2 more
exaly +3 more sources
Railway Infrastructure Classification and Instability Identification Using Sentinel-1 SAR and Laser Scanning Data [PDF]
Sensors, 2020 Ling Chang +2 more
exaly +2 more sources
A study on characteristic indexes of railway ballast bed under high-frequency radar [PDF]
Railway Sciences, 2023 Purpose – In this paper, a high-frequency radar test system was used to collect the data of clean ballast bed and fouled ballast bed of ballasted tracks, respectively, for a quantitative evaluation of the condition of railway ballast bed.
Shilei Wang +4 more
doaj +1 more source
Applied Sciences, 2023 This study presents an innovative, intelligent obstacle avoidance module intended to significantly enhance the collision prevention capabilities of the robotic arm mechanism onboard a high-speed rail tunnel lining inspection train.
Yang Lei +5 more
doaj +1 more source
A vertical coupling dynamic analysis method and engineering application of vehicle–track–substructure based on forced vibration [PDF]
Railway Sciences, 2022 Purpose – This study aims to propose a vertical coupling dynamic analysis method of vehicle–track–substructure based on forced vibration and use this method to analyze the influence on the dynamic response of track and vehicle caused by local fastener ...
Guolong Li +4 more
doaj +1 more source
A Laser Plane Attitude Evaluation Method for Rail Profile Measurement Sensors
Sensors, 2023 The non-coplanar lasers on both sides of the rail during full-section rail profile measurement based on line-structured light vision will cause the measured profile to be distorted, resulting in measurement errors. Currently, in the field of rail profile
Le Wang +7 more
doaj +1 more source
Anomaly Detection of Trackside Equipment Based on GPS and Image Matching
IEEE Access, 2020 The health of trackside equipment often seriously affects the safe driving of the train, while manually checking their status is an indispensably laborious task.
Limin Gao +4 more
doaj +1 more source