System and method for detecting smoothness of track

Abstract

The invention provides a system and a method for detecting the smoothness of a track and belongs to the technical field of track detection. The system for detecting the smoothness of the track comprises a laser emitter, a target, image pick-up equipment and data processing equipment, wherein the target surface of the target is made from a semi-transparent material; the laser emitter is positioned in front of the target; the image pick-up equipment is positioned behind the target, and the central horizontal line of a camera of the image pick-up equipment directly faces the center of the target surface of the target; the camera of the image pick-up equipment is used for capturing a light spot image, formed on the target surface of the target, of the laser light of the laser emitter; the data processing equipment is connected with the image pick-up equipment and is used for acquiring the light spot image and processing the light spot image to obtain the position of a light spot. According to the system and the method, the technical problems of high detection error of the light spot, injury to the eyes of a person and the like in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of track detection, in particular to a system and method for detecting track smoothness. Background technique [0002] In recent years, with the development of technology, many measurement techniques have been automated. Railway transportation is the main artery of today's economic development, and the smoothness of the railway track directly affects the safe operation of the train. Initially, the smoothness of the railway track was operated purely manually, that is, the rope method. The two straightened a cotton thread and placed it on the track for observation to find out the offset and position of the track. However, when the length of the string exceeds 20 meters, it is difficult to straighten or stabilize the string due to the influence of wind force, self-weight and its own tension, resulting in a large error in the test result or being impossible to measure. Due to the good directivity and small di...

AI Technical Summary

Problems solved by technology

[0004] Although this technology solves some problems caused by the previous rope-orthogonal measurement and improves the efficiency to a certain extent, there are still many problems and errors in the reading of data

For example, because the working time is basically at night or at night, the light intensity at the spot position forms a sharp contrast with the surrounding area, so it is very harmful to the human eye; due to the drift of the laser itself, the random disturbance of the air flow, and the change of the refractive index of the atmosphere Inhomogeneity, the influence of the gravitational field, and the instability of the mechanical structure of the collimation system affect the determination of the center position of the spot, thereby affecting the accuracy of the data; the spot is an area, not a point, and it is inevitable when manually estimating the coordinates of the center point of the spot there will be some error

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