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Urban rail vehicle wheel tread damage detection system and method

A wheel tread and damage detection technology, which is applied in the direction of rim measurement/measurement, can solve the problems of low definition and many errors in damage identification, and achieve the effect of improving detection accuracy

Active Publication Date: 2020-12-22
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a wheel tread damage detection system and method for urban rail vehicles in order to overcome the problem that the wheel tread panorama images obtained by the existing wheel tread damage detection system often have low definition and cause more errors in damage identification

Method used

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  • Urban rail vehicle wheel tread damage detection system and method
  • Urban rail vehicle wheel tread damage detection system and method
  • Urban rail vehicle wheel tread damage detection system and method

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specific Embodiment approach 1

[0028] Specific embodiment one, a kind of urban rail vehicle wheel tread damage detection system of the present invention of the present embodiment, comprises wheel sensor 1, control module 2, image acquisition control and processing module 3 and camera module 4;

[0029] The wheel sensor 1 is electrically connected to the control module 2, and is used to generate a shooting trigger signal and send it to the control module 2 when the wheel passes by;

[0030] The control module 2 is electrically connected to the image acquisition control and processing module 3, and is used to generate a shooting command according to the shooting trigger signal and send it to the image acquisition control and processing module 3;

[0031] The image acquisition control and processing module 3 is electrically connected to the camera module 4, and is used to send the shooting command to the camera module 4;

[0032] The camera module 4 is used to collect a partial image of the wheel tread after r...

specific Embodiment approach 2

[0079] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present embodiment, the wheel tread damage detection method based on the above-mentioned one urban rail vehicle wheel tread damage detection system, the specific steps are as follows:

[0080] Step 1. Image collection: each front wheel tread image capturing camera 4-1-1 and rear wheel tread image capturing camera 4-2-1 both capture 1 / 4 wheel tread and 1 / 8 wheel tread, and the 4 The front wheel tread image capturing cameras 4-1-1 and the four rear wheel tread image capturing cameras 4-2-1 send the captured images of the wheel tread of each wheel to the image acquisition control and processing module 3;

[0081] Step 2: Image preprocessing: determine the saliency area of ​​the image of the wheel tread, cut and correct the 1 / 4 wheel tread to obtain a 1 / 4 wheel tread in the form of a rectangle, and use the image projection method to use the 1 / 8 wheel tread Complete the extraction of the precise area of ​​1 / 4 wheel tre...

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Abstract

The invention relates to a train fault detection system and method, in particular to an urban rail vehicle wheel tread damage detection system and method, and aims to solve the problem that a wheel tread panoramic image obtained by an existing wheel tread damage detection system is often low in definition, and consequently more errors during damage identification are caused. The urban rail vehiclewheel tread damage detection system comprises a wheel sensor used for generating shooting trigger signals when a wheel passes through the wheel sensor, a control module used for generating a shootingcommand according to the shooting trigger signals, an image acquisition control and processing module used for sending the shooting command to a camera module, and a camera module used for collectingwheel tread partial images after receiving the shooting command and collecting a plurality of wheel tread partial images for the same wheel; the wheel tread partial images are sent to the image acquisition control and processing module; and the image acquisition control and processing module is also used for splicing the plurality of wheel tread partial images of the same wheel into a complete wheel tread after receiving the wheel tread partial images.

Description

technical field [0001] The invention relates to a train fault detection system and method, in particular to a system and method for damage identification by splicing complete images of wheel treads. Background technique [0002] Wheel tread damage is a common failure of the wheel tread in rail vehicles, and it is the result of wheels sliding on the rail surface caused by excessive braking force during vehicle operation. The plane caused by the abrasion will cause a severe impact between the wheel and the rail, and the impact will seriously damage the bearing system of the vehicle and the roadbed. This impact is a very dangerous defect that seriously threatens the safety of driving. [0003] Especially after the speed of the train is increased, the requirements for the accuracy of the shape and geometric dimensions of the wheels are higher. During emergency braking, the collision and relative sliding between the wheel set and the rail will cause the tread to be scratched or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61K9/12
CPCB61K9/12
Inventor 杨德凯
Owner HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD