A Method for Abnormal Detection of Train Brake Parts

Abstract

The invention discloses a method for abnormal detection of train brake pad parts, the steps are as follows: Step 1, image preprocessing is performed on the collected brake pad data; Step 2, using Yo l oV4-t i ny target detection model to load and train With a good weight file, locate the hook part and detect the abnormality of the pin part on the brake pad picture, and the Yo l oV4‑t i ny target detection model will detect the pin in one step and output the detection result; step 3, use Yo l oV4 at the same time ‑t i ny target detection model locates the hook part, cuts out the hook part area, and then uses the improved OC‑CNN anomaly detection network to detect the hook screenshot; step 4, obtains the abnormal score through OC‑CNN detection of the hook screenshot, and judges the hook Whether there is an abnormality and output the detection result; step five, integrate the detection results of Yo l oV4-t i ny and improved OC-CNN, and obtain the detailed abnormal information of the entire brake pad. Yo l oV4-t i ny and OC-CNN of the present invention form a complete abnormal detection model of brake pads, which can quickly, accurately and efficiently complete abnormal detection of brake pads.

Description

A method for abnormal detection of train brake pad components technical field The present invention relates to the field of abnormality detection of train parts, in particular to a kind of abnormality detection for train brake pad parts. method. Background technique [0002] With the rapid development of my country's economy, the track mileage in mainland China ranks first in the world. Both speed and efficiency, have made great progress. In the maintenance of trains, traditional manual inspection still accounts for the vast majority. Traditional Troubleshooting During the test, the maintenance personnel had a harsh working environment, a large number of trains, requiring a lot of manpower and material resources, low efficiency and poor reliability, etc. Today's era of continuous automation and intelligence is out of tune. There is an urgent need for a high-efficiency, high-accuracy and low-cost technology It can automatically detect train faults and ensure the s...

AI Technical Summary

Problems solved by technology

However, in actual engineering projects, there is a huge gap in the proportion of positive and negative samples, and there are few negative samples, so it is often impossible to train a model with satisfactory results.

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