A Fault Identification Method for Missing Assembly Nuts of Cross Beams of Railway Freight Cars

A fault identification, railway freight car technology, applied in the field of fault identification, railway freight car spanning beam assembly nut lost fault identification, can solve the problems of missed inspection and wrong inspection of spanning beam assembly nuts, so as to increase the accuracy and improve the detection efficiency , the effect of accurate classification

Active Publication Date: 2020-08-21
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of missed detection and wrong detection caused by manual inspection of images in the detection of lost faults of cross beam assembly nuts, the present invention provides a fault identification method for missing cross beam assembly nuts of railway wagons

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  • A Fault Identification Method for Missing Assembly Nuts of Cross Beams of Railway Freight Cars
  • A Fault Identification Method for Missing Assembly Nuts of Cross Beams of Railway Freight Cars
  • A Fault Identification Method for Missing Assembly Nuts of Cross Beams of Railway Freight Cars

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0027] A method for identifying faults at the installation position of the brake beam of a railway freight car a...

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Abstract

The invention discloses a fault identification method for missing assembly nuts of cross beams of railway wagons, which solves the problem of missed detection and wrong detection of missing assembly nuts of cross girders caused by the existing manual image inspection method, and belongs to the field of fault detection of railway wagons. The present invention includes: constructing a triangular hole sample set and a nut sample set; the two sample sets are respectively trained using the U-shaped deep learning network based on semantic segmentation, and the U-shaped deep learning network based on semantic segmentation corresponding to the two sample sets is obtained. Optimum weight; intercept the triangular hole and the nut part of the triangular hole of the cross-beam image to be detected, and obtain the sub-image to be tested; input the sub-image to be tested into the U-shaped deep learning network to obtain the binary image of the triangular hole; when the triangular hole If there is a screw holder at the hole and there is no cotter pin in the binary image of the nut, it is further judged whether there is a nut in the binary image of the nut. Span image.

Description

technical field [0001] The invention relates to a fault identification method, in particular to a fault identification method for missing assembly nuts of cross beams of railway freight cars, and belongs to the field of fault detection of railway freight cars. Background technique [0002] The missing fault of the assembly nut of the cross beam of the railway freight car is a kind of fault that endangers the safety of the train. In the detection of the missing fault of the assembly nut of the cross beam, the fault detection is carried out by manually checking the image. Due to the fact that the inspectors are prone to fatigue and omissions during the work process, it is easy to cause missed inspections and wrong inspections. Contents of the invention [0003] Aiming at the problem of missed detection and wrong detection caused by manual inspection of images, the present invention provides a fault identification method for missing assembly nuts of railway freight cars. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06K9/62G06T7/12G06N3/08G06N3/04
CPCG06T7/0002G06T7/12G06N3/08G06N3/045G06F18/24
Inventor 邓艳
Owner HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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