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Projection Calibration System of Machine Vision Detection System for Vehicle-mounted Pavement Cracks

A technology of machine vision detection and calibration system, applied in the direction of roads, roads, road repairs, etc., to achieve the effect of ensuring accuracy, comprehensive functions, and large output

Inactive Publication Date: 2017-04-19
JILIN UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the current situation that it is impossible to verify the vehicle-based pavement primary crack collection system based on machine vision, the present invention adopts a combination of a projector, a receiving plate and a level to provide a low-cost, simple structure, high detection accuracy, and small cumulative error. Projection calibration system for vehicle-mounted road surface crack machine vision detection system with complete functions, simple operation, easy installation, strong versatility, and reliable performance, which can meet the requirements of the road surface primary crack detection system within a small field of view

Method used

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  • Projection Calibration System of Machine Vision Detection System for Vehicle-mounted Pavement Cracks

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0017] refer to figure 1 , the projection calibration system of the vehicle-mounted road surface crack machine vision detection system includes a projector 1 , a receiving board 2 and a level 3 .

[0018] The level 3 is a laser line level, and the level 3 is placed horizontally on the ground.

[0019] The receiving plate 2 is a cuboid part processed from a steel plate, and the surface of the receiving plate 2 is processed into a diffuse reflection surface, and the upper surface of the receiving plate 2 coincides with the horizontal laser reference plane of the level 3 .

[0020] The projector 1 is a general-purpose projector, and the projector 1 is placed obliquely downward on the receiving board 2 , and the projector 1 projects a standard road surface picture on the upper surface of the receiving board 2 .

[0021] How to use the projection calibration system of th...

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Abstract

The invention discloses a projection type calibration system of a machine vision detection system for vehicle-mounted road cracks. The projection type calibration system aims at solving the problem that currently, calibration on a vehicle-mounted road primary crack collecting system based on machine vision can not be achieved. The calibration system is mainly composed of a projector (1), a receiving plate (2) and a level gauge (3). According to the projection type calibration system of the machine vision detection system for the vehicle-mounted road cracks, the cost is low, the structure is simple, the detection accuracy is high, the accumulative errors are small, the functions are complete, the operation is easy and convenient, the installation is easy, the universality is high, the performance is reliable, and the requirements of a road primary crack detection system in a small view filed can be met.

Description

technical field [0001] The invention relates to a verification device of a detection device in the field of traffic detection, more specifically, it relates to a projection type calibration system of a vehicle-mounted road surface crack machine vision detection system. Background technique [0002] Highway pavement crack detection is one of the important research contents of the traffic engineering discipline. Its research significance is to seek a road smoothness detection scheme that guarantees the optimal road surface bearing capacity, the best vehicle ride comfort, the least road traffic accidents, and the lowest fuel consumption. Highway pre-maintenance provides sufficient advanced technical guarantee and theoretical support to achieve the goal of harmony and unity between roads, people and vehicles. [0003] By the end of 2011, the mileage of highways completed and opened to traffic in China had reached 85,000 kilometers. The rapid growth of the total mileage of highw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/01G01N21/88
Inventor 徐观吴广为张馨元苏建陈熔张立斌潘洪达刘玉梅戴建国林慧英单红梅李晓韬郑安琪袁静
Owner JILIN UNIV
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