A method and system for identifying subway track geometry diseases

By using a two-dimensional convolutional neural network training method based on differentiable structure search, subway track defects can be identified using vehicle vibration data. This solves the problems of low accuracy and efficiency in existing technologies and achieves a more efficient defect identification effect.

CN115983106BActive Publication Date: 2026-05-29BEIJING JIAOTONG UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING JIAOTONG UNIV
Filing Date
2022-12-14
Publication Date
2026-05-29

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Abstract

The application discloses a subway track geometric disease identification method and system, and relates to the field of subway track disease identification.The method comprises the following steps: obtaining vehicle body vibration data and vehicle body information of a target subway track; segmenting the vehicle body vibration data of the target subway track, converting each segment of data based on a root mean square value method, and obtaining multiple equal-interval data segments of the target subway track; obtaining detection data of the target subway track according to the multiple equal-interval data segments of the target subway track and the vehicle body information of the target subway track; inputting the detection data of the target subway track into a track geometric disease identification model, and determining whether the target subway track has track geometric diseases and the disease level when the track geometric diseases exist; wherein the track geometric disease identification model is obtained by training a two-dimensional convolutional neural network based on a differentiable architecture search method using training data.The application can improve the identification accuracy and efficiency of subway track geometric disease identification.
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