A method for detecting the seam separation of the spring tongue of a fastener

Abstract

The invention discloses a method for detecting the seam separation of a spring tongue of a fastener, which belongs to the field of railway infrastructure detection. The main steps of the present invention are: acquire the three-dimensional shape data on both sides of the track through the three-dimensional data acquisition system, convert it into a two-dimensional depth image, extract the local two-dimensional depth image of the area where the fastener is located, and perform thresholding on it Processing, extracting the fastener bolt contour, calculating the bolt center position, and starting from the bolt center, sampling to the side of the rail, and then thresholding the sampling sequence to calculate the height of the fastener spring tongue and the distance between the spring tongue and the seam. And according to the threshold value, it is judged whether there is a danger of the tongue leaving the seam. The detection method proposed by the invention can automatically and effectively detect the separation of the spring tongue of the fastener, and timely eliminate hidden dangers of train operation safety.

Description

Technical field [0001] The present invention relates to the field of railway infrastructure detection, and specifically refers to a method of decking the tongue of a fastener. Background technique [0002] The fastener is an important part of connecting the rails and sleepers. Its action is to secure the rails on the orbital pillow, maintain the rail spacing and prevent the rails from occurring relative to the longitudinal movement of the sleeper, and therefore, the fastener starts in terms of ensuring rail stability and reliability. A very important role. Whether the fastener tongue is seaming is an important embodiment of the fastener fixing is firmly reflected. Once the tongue is stitched, it will cause serious safety hazards. Therefore, it is important to detect whether the fastener tongue is sewing in the field of railway infrastructure detection. [0003] In the detection of railway infrastructure, my country has long been in manual and static testing, high maintenance cost...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for detecting the seam separation of the spring tongue of a fastener, which can automatically detect whether the seam separation of the spring tongue of the fastener is detected by the method based on image processing, so as to solve the problem that the existing fastener detection system cannot detect the seam separation of the spring tongue of the fastener The problem

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