Rail wagon coupler knuckle pin fault detection method based on image processing

A technology for image processing and railway wagons, which is applied to instruments, character and pattern recognition, and computer components, etc. It can solve the problems of low accuracy of detection results and achieve the effects of reducing labor costs, improving accuracy, and improving efficiency

Active Publication Date: 2021-02-26
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low accuracy of detection results in the method of manually checking w

Method used

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  • Rail wagon coupler knuckle pin fault detection method based on image processing
  • Rail wagon coupler knuckle pin fault detection method based on image processing
  • Rail wagon coupler knuckle pin fault detection method based on image processing

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Embodiment Construction

[0046]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.

[0047] 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.

[0048] see figure 1 and figure 2 Describe this embodiment, the railway wagon knuckle pin fault detection method based on image processing described in this embodiment, this method comprises the following steps:

[0049] Step 1, collecting the images of two adjacent carriages of the passing vehi...

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Abstract

The invention discloses a rail wagon coupler knuckle pin fault detection method based on image processing, and relates to rail wagon coupler knuckle pin fault detection. The problem that the accuracyof a detection result is low due to the fact that whether the coupler knuckle pin is lost or broken or not is subjected to fault detection in a manual troubleshooting mode is solved. The method comprises the steps of calling a corresponding template image according to coupler types of two adjacent carriages; preprocessing the image of the coupler knuckle pin combination area, and matching and correcting the obtained preprocessed image with the called template image so as to obtain a coupler knuckle pin initial identification area image; obtaining two to-be-identified fault area images of the coupler knuckle pin according to the contour features of the initial identification area images of the coupler knuckle pin; and judging whether a pin hole in each coupler knuckle pin to-be-identified fault area image exists or not, if so, judging a fault, and if not, judging whether the coupler knuckle pin in the coupler knuckle pin to-be-identified fault area image is broken or not by utilizing the SVM separator model so as to finish fault detection. The method is used for detecting faults of the coupler knuckle pin.

Description

technical field [0001] The invention belongs to the field of fault detection of railway freight cars, in particular to the detection of faults of railway freight car knuckle pins. Background technique [0002] The railway wagon coupler is a vehicle component used to realize the connection between the locomotive and the carriage or between the carriage and the carriage, transmit traction and impact force, and keep a certain distance between the vehicles. The coupler includes a knuckle tongue and a coupler body. The assembly relationship is as follows: There are pin holes on the two sides of the knuckle tongue, which are connected with a knuckle pin and assembled to the installation hole of the coupler body. The knuckle tongue can surround the knuckle tongue. The pin rotates. When the carriages are connected to each other, the connection between the carriages is realized, and the couplers corresponding to different types of carriages are different. During the operation of the...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06K9/46
CPCG06V10/462G06V10/752G06F18/2411
Inventor 王斐
Owner HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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