Rail transit curve track curvature measuring method

Abstract

The invention provides a track traffic curve track curvature measurement method. The method comprises the following steps: S1, detecting point cloud data of a target curve track based on a vehicle-mounted laser radar; s2, carrying out simplification processing on the point cloud data, and then carrying out filtering processing on the point cloud data after simplification processing; s3, extracting the point cloud data, extracting an edge curve of the curve track, and performing fitting based on the edge curve to obtain a track center line; s4, the curvature of the curve track is calculated based on the center line of the curve track, through the method, the curvature radius of the curve track in the track traffic can be accurately tested, accurate data support is provided for safe operation of the track traffic, the whole testing process is high in efficiency, manpower is saved, and potential safety hazards existing in testing are effectively avoided.

Description

technical field [0001] The invention relates to a method for measuring curvature, in particular to a method for measuring the curvature of a rail transit curved track. Background technique [0002] Urban rail plays an extremely important role in modern transportation, which greatly alleviates the problem of urban road congestion; urban rail includes two types of single-track and double-track. For rail transit operations, whether the curvature of the curved track is accurate and reasonable is the guarantee. Extremely important parameter for operational safety as well as ride comfort. [0003] In the prior art, the following forms are generally used for the curvature of the curved track: use a total station, a level, etc. to measure the curvature manually, which is inefficient, wastes manpower, and has potential safety hazards. More importantly, this measurement The method depends heavily on the experience level of the surveyors. Even for experienced testers, due to factors s...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the following forms are generally used for the curvature of the curved track: use a total station, a level, etc. to measure the curvature manually. This method is inefficient, wastes manpower, and has potential safety hazards. More importantly, this measurement The method depends heavily on the experience level of the surveyors. Even experienced testers, due to factors such as the environment, will cause extremely inaccurate test data, which is difficult to use as data support for subsequent track operations.

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