Motor train unit sanding pipe joint disconnection fault detection method based on image processing

A technology for image processing and disconnecting faults, applied in the field of image processing, can solve problems such as missed detection and false detection, and achieve the effects of reducing false positives, enhancing edges, and improving accuracy
CN112508908AActive Publication Date: 2021-03-16HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
Publication Date
2021-03-16

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Abstract

The invention relates to the field of image processing, in particular to a motor train unit sanding pipe joint disconnection fault detection method based on image processing, solves the problems of missing detection and wrong detection caused by the fact that whether a sanding pipe joint is disconnected or not is checked in an existing manual image checking mode, and relates to the field of imageprocessing. The method comprises the steps: taking the features of sanding pipe component images as training features, and acquiring a trained classifier; processing the to-be-detected image containing the motor train unit sanding pipe to obtain a noise-free image containing the motor train unit sanding pipe; matching the noiseless image with a sanding pipe template image stored in a template image library, and extracting a sanding pipe joint image from the noiseless image according to the successfully matched sanding pipe template image; extracting features of the sanding pipe joint image asto-be-detected features; inputting the to-be-detected features into the trained classifier, and outputting the category of the sanding pipe joint image. The device is used for identifying whether thesanding pipe joint is disconnected.
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Description

technical field

[0001] The invention relates to a fault detection method for disconnection of a sand spreading pipe joint. It belongs to the field of image processing. Background technique

[0002] The sand spreading system is an important part of the brake system of the EMU, which can effectively improve the working environment of the wheel-rail contact surface, improve the adhesion coefficient, and improve the running quality. Especially in bad weather such as rain, snow and frost, the rails become very slippery, and the vehicle is prone to idling or sliding. The sand spreading system can effectively reduce the occurrence of such problems. The disconnection of the sanding pipe joint leads to the failure of the sanding function of the sanding system of the EMU, which endangers the driving safety. In traditional fault detection methods, fault detection is usually performed by manually inspecting images. Due to the fact that the inspectors are prone to fatigue and omission...

Claims

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