Calibration equipment and calibration method for linear array camera of high-speed rail detection system

A line scan camera and detection system technology, applied in image analysis, instruments, calculations, etc., can solve problems such as the inability to meet the standard requirements of fast railway maintenance and repair, achieve fast and accurate camera calibration, ensure accuracy requirements, and simple operation.

Active Publication Date: 2015-08-19
CHANGAN UNIV
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Problems solved by technology

At this stage, the detection technology of high-speed railway is not developed enough, and the traditional static detection method can no longer meet the standard requirements of modern fast railway maintenance and repair.

Method used

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  • Calibration equipment and calibration method for linear array camera of high-speed rail detection system
  • Calibration equipment and calibration method for linear array camera of high-speed rail detection system
  • Calibration equipment and calibration method for linear array camera of high-speed rail detection system

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Embodiment Construction

[0042] The present invention proposes a line array camera calibration device and calibration method for a high-speed rail detection system, wherein the structure of the calibration device is as follows figure 1 Shown:

[0043] A linear array camera calibration device for a high-speed rail inspection system, the linear array camera is installed on a rail inspection car 12, a calibration plate 3 is arranged on one side of the rail inspection car 12, and a calibration tape 13 is arranged on the calibration plate 3; the calibration plate 3 can move towards or away from the rail inspection car 12, the top of the calibration plate 3 is provided with a laser rangefinder 5, and the rail inspection car 12 is provided with a positioning mark 10.

[0044] Such as figure 1 and figure 2shown. The line array cameras are distributed on both sides of the rail inspection vehicle 12, and each side is provided with a camera in the up and down direction. The calibration of the camera is acco...

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Abstract

The invention discloses calibration equipment for a linear array camera of a high-speed rail detection system. The linear array camera is installed on a track inspection vehicle, one side of the track inspection vehicle is provided with a calibration plate, and a calibration tape is arranged on the calibration plate; the calibration tape can move along a direction close to or away from the track inspection vehicle, the top part of the calibration tape is provided with a laser range finder, and a positioning mark is arranged on the track inspection vehicle. The invention further provides a calibration method for the linear array camera by utilizing the calibration equipment. The calibration equipment is simple in structure, simple in manufacturing process and low cost; the calibration method is simple in operation, and can perform camera calibration quickly and accurately; and the measuring precision can reach 1mm after calibration by adopting the calibration equipment and the calibration method, and the precision requirement of measurement results is ensured.

Description

technical field [0001] The invention belongs to the technical field of railway detection, and relates to a calibration device and a calibration method for a line array camera of a high-speed rail detection system. Background technique [0002] With the rapid development of economy and society, the transportation network is increasingly developed. As an important part of the transportation network, high-speed railway has also achieved extremely rapid development, which makes how to ensure the safety of high-speed railway a very important topic. At this stage, the detection technology of high-speed railway is not developed enough, and the traditional static detection method can no longer meet the standard requirements of modern fast railway maintenance and repair. Therefore, there is an urgent need for a high-precision, high-efficiency dynamic detection system to complete the detection of high-speed rail tracks to ensure the safety of high-speed railways. [0003] Nowadays, ...

Claims

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Application Information

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IPC IPC(8): G06T7/00
Inventor 韩毅王文宇许耀华杨燕雨刘海洋
Owner CHANGAN UNIV
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