Development and Operation of Track Condition Monitoring System Using In-Service Train

Development and Operation of Track Condition Monitoring System Using In-Service Train

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Railway tracks must be managed appropriately because their conditions significantly affect railway safety.Safety is ensured through inspections by track maintenance staff turbo air m3f24-1-n and maintenance based on measurements using dedicated track geometry cars.However, maintaining regional railway tracks using conventional methods is becoming difficult because of their poor financial condition and lack of manpower.Therefore, a track condition diagnostic system is developed, wherein onboard sensing devices are installed on in-service vehicles, and the vibration acceleration of the car body is measured to monitor the condition of the track.

In this study, we conduct long-term measurements using the system and evaluate changes in the track conditions over time using car-body vibration data.Filed test results showed that sections with degraded tracks were identified using car-body vibration data.The track degradation trend can be constructed using the results obtained.Furthermore, this study demonstrated that the track maintenance effect could be confirmed.

A method for improving train position using the yaw angular velocity is proposed.The track irregularity position can be shown more clearly by monitoring the track condition using position-corrected data using the proposed method.It is also shown that the time-frequency analysis of measured car-body vertical acceleration is effective for evaluating pom pom cupcake toppers the track condition more clearly.