A fast and high-precision calibration device for line-scan cameras in high-speed rail detection systems

Abstract

The invention provides a line-scan camera fast and high-precision calibration device of a high-speed rail detection system. A laser rangefinder can rotate relative to a calibration plate. The device further comprises a support platform installed on a tripod. A transverse motion guide rail is installed on the support platform through a fine-leveling support, and a transverse slide block capable of moving along the transverse motion guide rail is installed on the transverse motion guide rail. A longitudinal motion guide rail is installed on the transverse slide block, and a longitudinal slide block capable of moving along the longitudinal motion guide rail is installed on the longitudinal motion guide rail. The bottom of the calibration plate is rotationally installed on the longitudinal slide block. The device of the invention is convenient to install and adjust, simplifies the calibration procedure, and is high in precision of identification. By adopting the rotatable calibration plate, light reflection is eliminated effectively, and the precision of identification is further improved. The adjacent white stripes of the calibration tape are unequally spaced, so that the unique position of the black stripe to be calibrated can be easily identified, the calibration procedure is simplified, and operation is time-saving and labor-saving.

Description

technical field [0001] The invention belongs to the field of railway detection and relates to a line array camera, in particular to a fast and high-precision calibration device for a line array camera of a high-speed rail detection system. Background technique [0002] China's railway passenger transport is currently the main mode of passenger transport in China, with an annual passenger throughput of more than 1 billion. Line track is the basis of railway transportation. Regularly checking whether the track is deformed or misplaced is the daily work of track inspection personnel who are responsible for the safety of passengers. At present, the total length of my country's railway lines is close to 100,000 kilometers, which is a great burden for railway inspectors. Therefore, the speed and accuracy of railway track detection are very important, especially after the EMUs start running, the requirements for the track are higher and the standards are stricter. Therefore, my c...

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the existing technology, the purpose of the present invention is to provide a fast and high-precision calibration device for a line array camera in a high-speed rail detection system, so as to solve the technical problems of slow calibration speed and low calibration accuracy in the existing calibration technology

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