Wagon water leakage hole foreign matter detection method

A technology for foreign object detection and railway wagons, applied in neural learning methods, biological neural network models, image data processing, etc., can solve problems such as low accuracy rate and low efficiency of foreign objects in leaking holes, and improve accuracy rate, improve operation quality, The effect of high flexibility

Active Publication Date: 2020-04-28
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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Problems solved by technology

[0005] The present invention aims to solve the problems of low efficiency a

Method used

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  • Wagon water leakage hole foreign matter detection method
  • Wagon water leakage hole foreign matter detection method
  • Wagon water leakage hole foreign matter detection method

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Experimental program
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specific Embodiment approach 1

[0036] Specific implementation mode one: refer to figure 1 To describe this embodiment in detail,

[0037] This embodiment is a method for detecting foreign objects in leaking holes of railway freight cars, including the following steps:

[0038] step1. Line array image collection

[0039] Take pictures of the moving trucks to obtain high-definition grayscale full-vehicle images.

[0040] Due to the influence of interference factors, there is a large difference between the images of the leak hole area in the obtained whole car image. In order to enhance the robustness of the recognition algorithm, in the process of collecting image data, it is necessary to obtain images under various conditions.

[0041] step 2. Coarse positioning

[0042] According to the prior knowledge of the wheelbase information of the hardware and the location of the water leakage hole area, the image of the water leakage hole area is cut out from the high-definition grayscale full-vehicle image, wh...

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Abstract

The invention discloses a wagon water leakage hole foreign matter detection method, relates to a water leakage hole foreign matter detection method, and belongs to the technical field of freight traindetection. The objective of the invention is to solve the problems of low efficiency and low accuracy of existing water leakage hole foreign matter detection. The method comprises the following steps: acquiring an image, extracting an image containing a water leakage hole area, constructing a sample data set, and training a target object segmentation network by using the sample data set; in the detection process, collecting a real vehicle passing image, and extracting and recording a water leakage hole part imaged as a to-be-detected water leakage hole part image; and inputting the to-be-detected water leakage hole part image into the target object segmentation network to obtain a predicted binary image, finding a maximum foreign matter connected domain if foreign matters are detected inthe binary image, calculating the area and height of the maximum foreign matter connected domain, and performing fault alarm when the area of the foreign matters is greater than an area threshold or the length is greater than a length threshold. The method is mainly used for detecting foreign matters in water leakage holes of wagons.

Description

technical field [0001] The invention relates to a method for detecting foreign objects in water leakage holes. The invention belongs to the technical field of freight train detection. Background technique [0002] In order to ensure the safe operation of railway wagons, it is necessary to carry out daily inspection operations on railway wagons. These include inspections of leaking holes in railway wagons. The leakage holes on the railway freight car are two holes in the lower part of the railway freight car bogie, such as figure 2 as shown, figure 2 The two areas marked by the middle white triangle frame are the leakage holes of the railway freight car bogie. Many foreign objects may enter the leak hole during maintenance or when the train is running, and the leak hole is close to the train track below. Hard foreign objects may be partially stuck in the leak hole when the train is running, and damage the track below. [0003] For a long time, the inspection of leaking h...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/136G06T7/187G06N3/04G06N3/08G06K9/62G06Q10/00
CPCG06T7/0002G06T7/136G06T7/187G06N3/08G06Q10/20G06N3/045G06F18/214
Inventor 燕天娇
Owner HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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