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Point laser track automatic calibration system and method for road detection vehicle

An automatic calibration system and road inspection vehicle technology, applied in roads, roads, road repairs, etc., can solve the problems of calibration accuracy and time-consuming, and achieve the effect of fewer operators, high adjustment accuracy, and easy automatic adjustment

Active Publication Date: 2020-04-10
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects and deficiencies of the prior art, the present invention provides a point laser rut automatic marking system and method for road inspection vehicles, which solves the existing The calibration method and system have the problems of calibration accuracy and time-consuming

Method used

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  • Point laser track automatic calibration system and method for road detection vehicle
  • Point laser track automatic calibration system and method for road detection vehicle
  • Point laser track automatic calibration system and method for road detection vehicle

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Experimental program
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Embodiment 1

[0039] like figure 1 As shown, a point laser rut automatic calibration system for road inspection vehicles disclosed in this embodiment includes a laser to be calibrated, a calibration piece 2, a lifting device 3, a power system 4 that provides power for the lifting device 3, and a measurement calibration A spirit level 5, a camera 6, a controller 7 and an industrial computer 8 for triggering the work of the laser and the power system 4 of the part 2 levelness; the general laser device is installed at the tail of the road inspection vehicle 1, and the power system 4 is a stepper in the present embodiment motor, camera 6 is a close-focus camera.

[0040] The calibration piece 2 is a plate, which is arranged along the horizontal plane. The calibration piece 2 is connected to the lifting device 3, and the calibration piece 2 is driven to move in the vertical direction by the lifting device 3 . The level 5 is arranged on the bottom surface of the standard part 2, and the camera 6...

Embodiment 2

[0047] This embodiment discloses a method for automatic point laser rutting calibration of a road inspection vehicle. The method adopts the automatic point laser rutting calibration system of the road inspection vehicle of the embodiment for calibration. The method includes the following steps:

[0048] Step 1: Acquisition of Calibration Data:

[0049] Step 1.1: The industrial computer 8 controls the movement of the stepping motor (that is, the power system 4 ) through serial port commands, thereby controlling the rising distance of the calibration piece 2 . After controlling the power system 4 to drive the calibration plate 2 to move a certain distance, the industrial computer 8 controls the camera 6 to collect the position and shape of the water bubble in the spirit level 5, and compares the collected picture with the picture of the shape of the level bubble in the horizontal position stored in advance in the industrial computer 8 Perform matching, if the matching is success...

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Abstract

The invention discloses a point laser track automatic calibration system and a point laser track automatic calibration method for a road detection vehicle. The point laser track automatic calibrationsystem comprises a laser to be calibrated, a calibration piece, a lifting device, a power system for providing power for the lifting device, a gradienter for measuring the levelness of the calibrationpiece, a camera, a controller and an industrial personal computer which are used for triggering the laser and the power system to work, wherein the calibration piece is arranged on the horizontal plane and is driven by means of the lifting device to move in the vertical direction; and the gradienter is arranged on the bottom surface of the calibration piece, and the camera can shoot the positionform of the gradienter. By adopting the automatic calibration system and the automatic calibration method, an operator can complete the calibration process of a point laser track by controlling a stepping motor through controlling an industrial control host, horizontal calibration is conducted in the mode that the camera shoots a level bubble and the industrial control host controls the stepping motor, and the calibration process is more precise; and the advantages of few operators, high adjusting speed, high adjusting precision, easiness in realizing automatic adjustment and the like are realized.

Description

technical field [0001] The invention belongs to the technical field of road surface detection, and in particular relates to a point laser rutting automatic marking system and method for a road detection vehicle. Background technique [0002] my country has rapidly entered the management and maintenance period focusing on maintenance and repair from the peak period of road construction, and road management departments will face arduous maintenance and management tasks for a long time. Comprehensive, accurate, fast and reliable grasp of pavement disease data is the key to scientific maintenance management decision-making. As one of the main disease forms of asphalt pavement, rutting not only directly affects the driving safety and comfort, but also seriously endangers the integrity and stability of the road structure. Therefore, obtaining accurate and reliable rutting detection data is an important task for pavement condition evaluation and maintenance decision-making. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00E01C23/01
CPCG01C25/00E01C23/01
Inventor 王建锋孙心洁郑涛赵慧婷董学恒乔盼张照震宋宏勋吴学勤
Owner CHANGAN UNIV