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Up to now, the safety inspection of railway has been carried out by trackwalkers’ patrolling for tens of thousands of kilometers every day, which is not only low-efficient but also with potential safety risks. The unmanned patrolling plane can be used to replace the daily manual inspection. It checks if there is a foreign object on the railway through its on-board camera and make ultrasonic flaw detections on the track at intervals through its bottom-mounted ultrasonic detector to check if the screw is loose. Once it identifies an issue, it will send the data of abnormity to the maintenance center to assign people to repair timely.
Harbin University of Science and Technology