Railway wagon brake beam strut round pin loss fault identification method

A technology for fault identification and railway wagons, which is applied in the field of image processing, can solve the problems of high cost of manual detection and low accuracy of machine detection, and achieve the effects of improving detection accuracy, reducing staff and increasing efficiency, and saving labor costs

Active Publication Date: 2020-04-28
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of high cost of manual detection and low accuracy of machine detection for the loss of round pin of the pillar of the brake beam of the freight car, and provides a fault identification method for the loss of the round pin of the pillar of the brake beam of the railway freight car

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  • Railway wagon brake beam strut round pin loss fault identification method

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specific Embodiment approach 1

[0032] Specific implementation mode one, the following combination figure 1 This embodiment is described. The fault identification method for the loss of the round pin of the railway freight car brake beam pillar according to the embodiment is characterized in that the method includes the following steps:

[0033] Step 1. Collect the sample images of the round pins of the truck brake beam pillars to establish a training set;

[0034] 1. Collect samples

[0035] Capture sharp grayscale images with a high-resolution line scan camera. The principles for collecting images are as follows:

[0036] (1) Collect images of truck brake beam stations under various conditions such as rainwater, ice and snow, chalk graffiti, load leakage, mud stains, oil stains, black paint, and dust.

[0037] (2) Collect images of truck brake beam stations at different sites, different equipment, and at different times (different degrees of sunlight interference).

[0038] 2. Sample amplification

[...

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Abstract

The invention discloses a railway wagon brake beam strut round pin loss fault identification method, belongs to the field of railways, and aims to solve the problems of high manual detection cost andlow machine detection accuracy of wagon brake beam strut round pin loss faults in the prior art. The method comprises the steps of 1, collecting truck brake beam strut round pin sample images to establish a training set; 2, inputting the training set into an RPN network and a Fast RCNN network for joint training, and obtaining a final weight to construct a Fast RCNN network model; 3, continuouslycollecting vehicle passing pictures of the truck brake beam strut round pin, and preprocessing the pictures; 4, sequentially inputting the pictures into a Fast RCNN network model to judge whether thewagon brake beam strut round pin pictures have a loss fault or not, and if the loss fault exists, uploading an alarm; and if so, continuing to judge whether the next picture has a loss fault or not according to the method in the step 4 until the continuously acquired pictures are all processed.

Description

technical field [0001] The invention belongs to the field of railways and relates to image processing technology. Background technique [0002] The loss of the round pin of the truck brake beam pillar is a failure that endangers driving safety. The detection methods currently used are divided into two categories. The first type is manual inspection, which accounts for a large proportion because of its high accuracy. The general process is: in the truck When entering the station for maintenance, actively collect pictures of the whole truck, and manually check the pictures of the whole vehicle, including checking whether the round pin of the brake beam pillar is missing. The car is small, so it has caused a great workload to the inspectors, and has caused serious waste of personnel. The second type is computer processing: when the truck is in the station for maintenance or during operation, the whole truck picture is collected, and the picture is input to the computer for pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T7/0004G06T2207/20081G06T2207/20084G06T2207/30164
Inventor 生田野
Owner HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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