3D information detection device and method for pavement treadway

A technology of three-dimensional information and detection devices, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of inability to accurately restore the cross-sectional profile of the road surface, inaccurate data information, complex structure, etc., and achieve complete and accurate lateral profile of the road surface. High data reliability and good repeatability

Active Publication Date: 2007-12-19
HARBIN INST OF TECH
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AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of inaccurate data information, many error sources, complicated structure and inability to accurately restore the profile of the cross-section of the road surface in the existing road surface rutting detection technology, the present invention proposes a three-dimensional information detection device and detection method for road ruts

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  • 3D information detection device and method for pavement treadway
  • 3D information detection device and method for pavement treadway

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specific Embodiment approach 1

[0017] Specific Embodiment 1: This embodiment is described in conjunction with Fig. 1, Fig. 2 and Fig. 3. This embodiment is composed of a processing system 2 and a three-dimensional structured light visual detection component 3; the output end of the three-dimensional structured light visual detection component 3 is connected to the processing system The input end of 2; the three-dimensional structured light visual detection component 3 is arranged laterally on the cross section of the bottom of the car body 1, the three-dimensional structured light visual detection component 3 is composed of a structured light laser 3-2 and an area array CCD3-1, and the structured light laser 3 The structured light strip emitted by -2 covers the horizontal road surface, and the camera of the area array CCD3-1 faces the road surface 4 below the structured light laser 3-2, so as to shoot the light strip image projected by the structured light laser 3-2 onto the road surface 4 and cover the horiz...

specific Embodiment approach 2

[0018] Specific embodiment two: illustrate this embodiment in conjunction with Fig. 1, this embodiment and specific embodiment one difference point is that processing system 2 is made up of image acquisition card 2-1 and computer 2-2; The output terminal connection of area array CCD3-1 The input end of the image acquisition card 2-1, the image acquisition card 2-1 is connected inside the computer 2-2. Image acquisition card 2-1 adopts OK_M20A from Beijing Jiaheng Zhongzi, and computer 2-3 adopts Taiwan Advantech industrial computer. Other compositions and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0019] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the area array CCD 3-1 adopts monocular area array CCD or binocular area array CCD; other composition and connection methods are the same as Embodiment 1.

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Abstract

A method for detecting 3-D information of rut on pavement includes forming structure light strip of structure light laser to be an image on surface array CCD after said structure light strip is modulated by 3-D information of pavement in order to obtain pavement information for making calculation through relation matrix, filtering disease influence off, calculating parameter by utilizing virtual straight scale, storing data then analyzing and displaying data. The detection device used for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to a rut detection device and a detection method. Background technique [0002] The pavement is an important part of the road. With the increase of the mileage of the road and the number of heavy vehicles, the ruts formed by the wheel tracks on the road become one of the main factors affecting the performance of the road. The "groove effect" produced by rutting deformation causes the car body to tilt and bump, which accelerates the damage of the vehicle. Water accumulated in ruts after rain seriously affects the maneuverability and stability of the vehicle, and may even cause traffic accidents. Therefore, how to accurately and efficiently detect and evaluate the rutting index has always been a problem of great concern to the highway management department. [0003] The technology of automatic detection of road ruts has made great progress in the world, and many products have come out. Companies such as ICC in the United States, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/03G01B11/24
Inventor 刘宛予谢凯
Owner HARBIN INST OF TECH
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