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Track contour measuring device based on structured light

A profile measurement and structured light technology, applied in the field of rail transit, can solve problems such as the inability to truly reflect changes in track geometric parameters, cumbersome operation methods, and limited detection speed, and achieve accurate identification of rail rail profiles, convenient operation, and overcoming insurmountable effect

Pending Publication Date: 2021-12-17
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, traditional static track detection has limitations in detection parameters, cumbersome operation methods, limited detection speed, and low detection efficiency. Provide scientific basis for structural design, disease cause analysis and maintenance standard formulation

Method used

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  • Track contour measuring device based on structured light
  • Track contour measuring device based on structured light
  • Track contour measuring device based on structured light

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Embodiment Construction

[0019] In the following, the technical solutions in the embodiments of the present invention will be described in conjunction with the accompanying drawings of the present invention. Apparently, the described embodiments are only some specific embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] see figure 1 , figure 1 It is an overall schematic diagram of the track profile measuring device according to the embodiment of the present invention. Wherein the whole measuring device comprises four structured light measuring sensors (1) in total. Because the four structured light measurement sensors (1) can respectively collect the data of the full section of the profile of the left and right track rails (2). The device is mainly used for dynamic track inspectio...

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Abstract

The invention relates to a track contour measuring device based on structured light. The device is based on a structured light detection technology, assists a laser light source, and carries out irradiation, data acquisition and real-time processing on the surface profile of the railway track through four groups of structured light sensors. According to the working principle of a triangulation method, the device uses an improved Hessian matrix structure light center pixel coordinate extraction algorithm. According to the structured light sensor, the surface of the track is irradiated by a linear light source emitted by a laser light source in the sensor, and then a result is fed back to a high-speed camera in the sensor, and meanwhile, the sensor carries out real-time calculation and can accurately measure the geometric morphology of the surface profile of the track. The measuring device is convenient to use, small in measuring error and capable of accurately measuring the geometric morphology of the surface profile of the track in real time.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a rail profile measurement device based on structured light. Background technique [0002] With the continuous improvement of China's urbanization rate, the population flow to the city has caused a sudden increase in the urban population, and the pressure on internal transportation in the city has continued to increase. Compared with other travel methods, the subway has gradually become the preferred travel method for people, which has promoted the construction of subway lines and mileage. The rapid growth of the company, and in order to alleviate the traffic pressure of commuting, it is inevitable to speed up the operation. However, the daily driving of subway lines is busy, which accelerates the aging of the lines and causes more and more track diseases. [0003] Under the action of power, the track will produce various track irregularities, surface wear and defects. If ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01B11/00B61K9/10B61L23/04G06T7/13G06T7/155G06T7/70
CPCG01B11/24G01B11/002B61K9/10B61L23/04G06T7/13G06T7/155G06T7/70
Inventor 李雪飞赵勤坤王怀东翟国锐陈富王超董楠李晓明关超王宇超陈旭坤刘鑫博王奔王晶何国娟张海龙熊鹰娄方舒崔宪伟谢佳佳范洪伟陶然赵洪涛赵越柴华任天琦王爽袁德强王野高德健张文忠
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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