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Image acquisition method and acquisition device for track gauge detection

An image acquisition device and image acquisition technology, which are used in transportation and packaging, railway inspection vehicles, railway vehicle shape measuring instruments, etc., can solve problems such as reduced gauge measurement accuracy, incomplete track image information, and unclear track edges. , to achieve the effect of accurate division results, comprehensive and complete orbit information, and improved image acquisition efficiency

Active Publication Date: 2022-07-01
河南省爱普尔信息科技有限公司
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Problems solved by technology

Although this patent improves the gauge detection efficiency and detection accuracy, it uses two cameras to shoot the two tracks respectively, although it solves the problem of "shooting the images of the two tracks with one camera will easily cause the edge of the track to be unclear, resulting in However, the track image acquired by each camera mainly includes a single track information, and does not contain two track image information at the same time. Therefore, the acquired track image information is incomplete, and the final track The distance accuracy needs to be further improved

Method used

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  • Image acquisition method and acquisition device for track gauge detection

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Embodiment Construction

[0024] The invention provides an image acquisition method for track gauge detection, comprising:

[0025] At the initial position of the track, the image acquisition device is moved in a circle around the center of the track, and at least one shot is taken every first preset angle to obtain the track image information of each shot, and the position and angle information of each shot. The diameter of the circular motion of the device is not less than the maximum distance between the tracks (that is, the outer distance of the two tracks), so that the image acquisition device can shoot from the periphery of both sides of the track toward the track, and can obtain complete track image information;

[0026] Move the first preset distance along the track, and repeat the circular motion shooting steps of the image acquisition device until the shooting of all the distances to be measured on the track is completed, and obtain the track image information and position and angle informatio...

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Abstract

The invention discloses an image acquisition method and an acquisition device for track gauge detection. The method adopts rotary shooting, and can collect the image information of the same track from different angles and different positions, and the obtained track information is comprehensive and complete. Edge time-sharing can combine multi-angle and multi-position shooting images, the division result is more accurate, and the track gauge information obtained by detection is also more accurate. The invention also provides an image acquisition device, through which the functions of automatic walking and automatic rotation to photograph the track can be realized, and the image acquisition efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of track analysis and measurement, and particularly relates to an image collection method and collection device for track gauge detection. Background technique [0002] Due to factors such as the track itself, geological changes, etc., the track gauge of railways, subways, etc. can change, which seriously affects the driving safety. Therefore, it is necessary to regularly test the track gauge to find out in time whether the gauge change exceeds the limit standard. [0003] Most of the track gauges in the prior art are detected manually using a gauge ruler. On the one hand, manual measurement inevitably results in measurement errors, and on the other hand, manual measurement is time-consuming and labor-intensive, resulting in low detection efficiency. In addition, with the development of modern science and technology, the use of image processing methods for track distance detection technology has gradually de...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61K9/08B61D15/08
CPCB61K9/08B61D15/08
Inventor 宋中彬宋冬冬赵振
Owner 河南省爱普尔信息科技有限公司
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