Wagon sleeper beam hole carrying foreign matter detection method

A railway wagon and foreign object detection technology, applied in image data processing, instruments, calculations, etc., can solve the problems of low detection accuracy and detection efficiency, improve stability and accuracy, unify operation standards, improve operation quality and efficiency effect

Active Publication Date: 2020-11-27
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low detection accuracy and detection efficiency when using manual inspection to judge whether foreign matter is carried in the corbel hole area, and proposes a method for detecting foreign matter carried in the corbel hole of railway freight cars

Method used

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  • Wagon sleeper beam hole carrying foreign matter detection method
  • Wagon sleeper beam hole carrying foreign matter detection method
  • Wagon sleeper beam hole carrying foreign matter detection method

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specific Embodiment approach 1

[0030] Specific implementation mode one: combine figure 1 This embodiment will be described. The method for detecting foreign matter carried in the bolster hole of a railway freight car described in this embodiment is specifically implemented through the following steps:

[0031] Step 1. Obtain the high-definition grayscale full-vehicle image of the railway freight car, and cut out the image of the corbel hole area from the obtained image;

[0032] Step 2: Detect whether there are foreign objects in the image of the corbel hole area intercepted in step 1, if there are foreign objects, then perform step 3, if there are no foreign objects, then return to step 1;

[0033] Step 3. If the area of ​​the foreign matter is greater than or equal to the threshold Q, then directly perform a fault alarm, otherwise continue to step 4;

[0034] Step 4. Locate the black transverse penetration gap under the corbel hole;

[0035] Step 5. Position the corbel hole parts according to the posit...

specific Embodiment approach 2

[0041] Embodiment 2: This embodiment differs from Embodiment 1 in that: the high-definition grayscale full-vehicle image is captured by a camera or video camera, and the camera or video camera is mounted on a fixed device around the track of the truck.

specific Embodiment approach 3

[0042] Embodiment 3: The difference between this embodiment and Embodiment 1 is that in the first step, the image of the corbel hole area is intercepted from the acquired image, and the specific process is as follows:

[0043] According to the wheelbase information of the hardware and the position information of the corbel hole parts, the image of the corbel hole area is cut out from the acquired image.

[0044] In this embodiment, the area of ​​the component to be identified is obtained from the positioning algorithm framework according to prior knowledge such as the wheelbase information of the hardware and the position of the component, so as to reduce the amount of calculation and improve the speed of recognition.

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Abstract

The invention discloses a wagon sleeper beam hole carrying foreign matter detection method, and belongs to the technical field of image detection. According to the invention, the problems of low detection accuracy and low detection efficiency when whether foreign matters are carried in the sleeper beam hole area or not is judged by adopting a manual detection mode are solved. According to the invention, imaging equipment is carried around a truck track by using fixed equipment, and whole-truck linear array image data of a to-be-detected running truck is acquired. A rectangular area containingthe sleeper beam hole and a small part of the bogie below the sleeper beam hole is obtained from the whole vehicle image; a sleeper beam hole in the image is approximately horizontally centered; by performing overturning and linear combination on images, accurate positioning of semi-elliptical sleeper beam holes and subsequent recognition of the relationship between foreign matters and shadows thereof in image shooting, alarm output is performed on pictures carrying the foreign matters, station workers are assisted in quickly detecting train components, and the train operation safety is ensured. The method can be applied to the technical field of image detection.

Description

technical field [0001] The invention belongs to the technical field of image detection, and in particular relates to a method for detecting foreign matter carried in a corbel hole of a railway freight car. Background technique [0002] When railway wagons are manually inspected, there is a possibility that some maintenance tools or parts of the car body may fall into the corbel holes. For a long time, vehicle inspectors have used manual inspection (that is, by viewing the images of passing vehicles) to judge whether there are foreign objects in the corbel hole area. The inspection work is very important, but a large number of image screenings make the vehicle inspectors in the work process Fatigue is extremely prone to occur in the process, and missed and wrong detections are prone to occur, making it difficult to guarantee the accuracy and high efficiency of detection. Therefore, it is necessary to adopt automatic identification in the fault detection of trucks. Contents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/62
CPCG06T7/0008G06T2207/10004G06T2207/30108G06T2207/30268G06T7/62
Inventor 燕天娇
Owner HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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