Method and device for detecting center plate bolt loss fault

Abstract

Aiming at solving the problems of overhigh labor intensity of workers, low work efficiency, high liability of causing leak detection and false detection under the affect of physiologic or psychological factors, high operation quality control difficulty, impossibility of backtracking the operation procedure and the like when the center plate bolt loss fault is detected in the prior art, the invention provides a method and device for detecting a center plate bolt loss fault, which can be used for overcoming the defects. The method comprises the following steps of: acquiring an image of a plate bolt to be detected; extracting features of the acquired image based on a small edge feature; and inputting the feature extracted on the basis of the small edge feature to a trained classifier, and detecting the plate bolt loss fault according to the output of the classifier.

Description

technical field [0001] The invention relates to the field of image recognition, in particular to a method and a device for detecting the loss of center disc bolts. Background technique [0002] Vehicle maintenance is an important link to ensure the safe operation of railways. At present, most of the heart plate structures of railway freight cars in my country are combined heart plates (or live heart plates). The center plate of this structure is convenient for maintenance and disassembly, so it is widely used in main trucks. If the bolts of the center plate are loose, worn out, or broken, the center plate and the center plate pad will be displaced on the bolster, so that when the car body transmits the longitudinal horizontal force, there will be a longitudinal impact between the center plate and the bolster, and in severe cases, the The upper and lower center discs will protrude, and the bogie cannot be positioned. Since the loss of center plate bolts is a high-occurrenc...

AI Technical Summary

Problems solved by technology

[0003] The current train inspection operation mainly uses manual indoor inspection of vehicles, that is, the inspector needs to view the images of passing vehicles one by one. Although this has made significant progress compared with the traditional outdoor inspection operation, it is still There are problems such as excessive labor intensity, low work efficiency, missed detection, false detection due to the influence of physiological or psychological factors, difficult operation quality control, and untraceable operation process.

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