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Fault detection method of railway wagon coupler pin based on image processing

An image processing and railway wagon technology, applied in the field of railway wagon fault detection, can solve the problems of low accuracy of detection results, achieve the effects of reducing labor costs, improving efficiency, and reducing false alarms

Active Publication Date: 2021-07-16
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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  • Summary
  • 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 whether the knuckle pin is lost or broken. The present invention provides a fault detection method based on image processing Detection method

Method used

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  • Fault detection method of railway wagon coupler pin based on image processing
  • Fault detection method of railway wagon coupler pin based on image processing
  • Fault detection method of railway wagon coupler pin 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 fault detection method of railway wagon knuckle pins based on image processing involves the detection of faults of railway wagon knuckle pins; it solves the problem of using manual inspection to detect whether the knuckle pins are lost or broken, and the accuracy of the detection results is low question. The present invention retrieves corresponding template images according to the coupler types of two adjacent carriages; preprocesses the images in the coupling area of ​​the couplers, and matches and corrects the obtained preprocessed images with the retrieved template images, thereby obtaining knuckle pin initial recognition area image; according to the contour features of the knuckle pin initial recognition area image, two knuckle pin fault area images to be identified are obtained; whether the pin hole in each knuckle pin fault area image to be identified exists is judged, If the result is yes, the fault is determined; if the result is no, the SVM separator model is used to determine whether the knuckle pin is broken in the image of the fault area to be identified for the knuckle pin to complete the fault detection. Used for knuckle pin fault detection.

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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Patent Type & Authority Patents(China)
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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