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Railway wagon triangular hole foreign matter detection method

A technology for foreign object detection and railway wagons, applied in biological neural network models, image data processing, image enhancement, etc., can solve the problems of low efficiency and low accuracy of foreign objects in leaking holes, shorten network training time, reduce labor load, time saving effect

Active Publication Date: 2020-04-28
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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  • Application Information

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Problems solved by technology

[0006] The present invention aims to solve the problems of low efficiency and low accuracy in the current detection of foreign matter in leakage holes

Method used

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  • Railway wagon triangular hole foreign matter detection method
  • Railway wagon triangular hole foreign matter detection method
  • Railway wagon triangular hole foreign matter detection method

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specific Embodiment approach 1

[0044] Specific implementation mode one: refer to figure 1 To describe this embodiment in detail,

[0045]This embodiment is a method for detecting foreign matter in a triangular hole of a railway freight car, which specifically includes the following steps:

[0046] 1. Line array image collection

[0047] Cameras or video cameras are installed on the fixed equipment around the truck tracks to take pictures of the moving trucks and obtain high-definition grayscale images of the whole truck, which are recorded as the whole truck image.

[0048] Due to various interference factors, there are large changes in the images of the triangular hole. In order to enhance the robustness, in the process of collecting image data, it is necessary to obtain images under the influence of various conditions and factors.

[0049] 2. Coarse positioning

[0050] According to the prior knowledge such as the wheelbase information of the hardware and the position of the triangular hole, the trian...

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Abstract

A railway wagon triangular hole foreign matter detection method belongs to the technical field of freight train detection. The objective of the invention is to solve the problems of low efficiency andlow accuracy of existing water leakage hole foreign matter detection. The method comprises the following steps: firstly, collecting images and extracting images containing a triangular hole area, building a sample data set, and wherein the sample data set comprises two sample data sets for triangular hole part positioning and a sample data set for triangular hole foreign matter calibration; respectively training a triangular hole positioning segmentation network and a triangular hole foreign matter segmentation network; in the detection process, collecting a real vehicle passing image, extracting a triangular hole part image, inputting the to-be-detected triangular hole part image into a triangular hole foreign matter segmentation network, and detecting whether foreign matter exists or not; and if the foreign matter exists, inputting the to-be-detected triangular hole part image into the triangular hole positioning segmentation network to carry out triangular hole region positioning,and then judging whether the foreign matter exists in the triangular hole. The method is mainly used for wagon triangular hole foreign matter detection.

Description

technical field [0001] The invention relates to a method for detecting foreign matter in a triangular hole. The invention belongs to the technical field of freight train detection. Background technique [0002] The triangular holes on the railway freight car are two large hollows on the upper part of the railway freight car bogie, which are shaped like triangles. As shown in Fig. 2(a) and Fig. 2(b), the two triangular areas are the triangular holes of the railway freight car bogie. Foreign matter may enter the triangular hole during maintenance or when the train is running, and a large foreign matter may be partly mounted in the hole, while the other part overflows to cover some other important parts on the bogie, such as springs, wheels, etc. Fault detection thus affects driving safety; or foreign matter may be transferred from the triangular hole to the leaking hole connected to it close to the train track and get stuck, and hard foreign matter may damage the track. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20G06K9/46G06T7/00G06N3/04
CPCG06T7/0004G06T2207/10004G06T2207/20081G06T2207/20084G06T2207/30252G06V10/22G06V10/40G06N3/045
Inventor 燕天娇
Owner HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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