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International Journal of Railway Technology
ISSN 2049-5358 IJRT,
Volume 7, Issue 2, 2018
A Track Condition Monitoring System using
In-service Vehicle for Regional Railways
H. Tsunashima1,
M. Odashima2, H. Mori3
M. Ogino4 and A. Asano4
1Department of Mechanical Engineering, Nihon University, Japan H. Tsunashima, M. Odashima, H. Mori,
M. Ogino, A. Asano, "A Track Condition Monitoring System using
In-service Vehicle for Regional Railways", International Journal of Railway Technology, 7(2), 67-83, 2018. doi:10.4203/ijrt.7.2.4
Keywords: safety, track, condition monitoring, fault detection, vibration, wavelet.
Abstract
In-service vehicles equipped with sensors and GNSS systems can act as probes to detect
and analyse real-time vehicle vibration. A compact on-board sensing device has
been developed and used for the track condition monitoring system. The diagnosis
software provides the function of detecting track faults using the root mean square
(RMS) of the car-body acceleration. It also permits analysis in the time-frequency domain
using wavelet transform. The actual measured data were obtained from regional
railway lines using the developed track condition monitoring system. The degradation
level of tracks has been monitored by the system developed and fed back to railway
operators to inform on a track maintenance scheme. Field test results in regional railway
lines showed that the system is effective for preventive maintenance work.
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