A track straightness detection system and method

Abstract

The present invention provides a track straightness detection system and method, comprising a motion mechanism, the motion mechanism is slidably arranged on the track, the motion mechanism is provided with a laser transmitter, and one end of the track is also provided with a camera, the camera A target surface is arranged between the moving mechanism and the laser transmitter, and the laser emitted by the laser transmitter is irradiated on the target surface. The camera is used to collect the spot image of the laser irradiated on the target surface. On the target surface, the camera records the image of the laser spot on the target surface, after the camera and the target surface are calibrated, the zero position of the system is calibrated, by recording the initial position of the light spot on the target surface, and then by moving the motion mechanism and recording The distance from the initial position and the spot image at this position can be obtained by comparing the coordinates of the spot in the two recorded images, so that the measurement difficulty of the straightness of the track is greatly reduced and the detection accuracy is high.

Description

technical field [0001] The invention relates to the field of track detection, in particular to a track straightness detection system and method. Background technique [0002] In the field of rail transportation, including rail trains and gantry cranes, the distance between two rails during operation, the height error of the rails, and the straightness of the rails will all affect the stability, safety, running accuracy and life of the motion mechanism. Therefore, the track is the key to this mode of transportation, and the straightness of the track is an important standard to measure the manufacturing error and installation error of the track. Therefore, the straightness measurement of the track is particularly important. [0003] The traditional measurement method uses total station, level, theodolite and other instruments to measure each point on the track one by one to obtain the required orbital parameters, but theodolite can only measure the orbit deflection angle, and ...

AI Technical Summary

Problems solved by technology

[0003] The traditional measurement method uses total station, level, theodolite and other instruments to measure each point on the track one by one to obtain the required orbital parameters, but theodolite can only measure the orbit deflection angle, and the fitting calculation process of the total station is very difficult. Direct results cannot be obtained in complex sites, the range of laser displacement sensors is limited, and the price of large-range laser displacement sensors is expensive, resulting in difficulty and poor accuracy in measuring track straightness

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