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Fastener elastic strip displacement detection method

A detection method and elastic strip technology, which are applied in the directions of measuring devices, image data processing, and 3D image processing, etc., can solve the problems such as the inability to detect the displacement of fastener elastic strips, and achieve strong environmental suitability, automatic and fast detection, and good The effect of detecting the effect

Pending Publication Date: 2019-12-31
成都精工华耀科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for detecting the displacement of fastener clips, which automatically detects whether the clips of Z-shaped fasteners have shifted through the method based on image processing, so as to solve the problem that the existing fastener detection system cannot detect fastener clips displacement problem

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  • Fastener elastic strip displacement detection method
  • Fastener elastic strip displacement detection method
  • Fastener elastic strip displacement detection method

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specific Embodiment approach

[0031] Such as figure 1 As shown, the present embodiment takes the Z-shaped fastener as an example to describe the method of the present invention in detail, and the specific implementation methods are as follows:

[0032] Step 1: Use two 3D imaging systems to capture 3D shape data on both sides of the track at the same time. The 3D data acquisition system is as follows: figure 2 As shown, it is composed of a line laser 1 and a high-speed area array camera 2. The positions and angles of the line laser 1 and the high-speed area array camera 2 are kept fixed. The line laser 1 emits a beam of scanning laser surface with a certain wavelength perpendicular to the track. 3 forms a cross-sectional profile on the surface, and obtains the three-dimensional shape data of the track including the Z-shaped fastener 4 through a high-speed area array camera, and converts it into a two-dimensional depth image, such as image 3 shown.

[0033] Step 2: Manually select the position of the Z-s...

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Abstract

The invention discloses a fastener elastic strip displacement detection method, and belongs to the field of railway infrastructure detection. The method mainly comprises the following steps: acquiringthree-dimensional topography data on two sides of a track through a three-dimensional imaging system, converting the three-dimensional topography data into a two-dimensional depth image, extracting an elastic strip displacement salient region image, accurately extracting an elastic strip displacement region contour, calculating an elastic strip displacement distance, and judging whether an elastic strip displacement risk exists or not according to the elastic strip displacement distance and a set threshold value. The detection method provided by the invention can automatically and effectivelydetect the displacement of the fastener elastic strip, and eliminates the potential safety hazard of train operation in time.

Description

technical field [0001] The invention relates to the field of railway infrastructure detection, in particular to a method for detecting the displacement of fastener clips. Background technique [0002] The fastener is an important part connecting the rail and the sleeper. Its function is to fix the rail on the sleeper, maintain the gauge and prevent the rail from moving vertically and horizontally relative to the sleeper. Therefore, the fastener plays an important role in ensuring the stability and reliability of the track. play a very important role. The elastic strip is the key to ensure that the fastener is firmly fixed. Once the elastic strip is displaced, it will bring serious safety hazards. Therefore, it is very important to detect the displacement distance of fastener clips in time in the field of railway infrastructure detection. [0003] In terms of railway infrastructure testing, my country has long been dominated by manual and static testing, with high maintenan...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T15/00G06T7/62G06T7/12G01B11/00
CPCG06T7/0004G06T15/005G06T7/62G06T7/12G01B11/002
Inventor 左丽玛
Owner 成都精工华耀科技有限公司
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