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Symmetrical line laser pavement track detection system

A detection system, line laser technology, applied in the direction of roads, roads, measuring devices, etc.

Inactive Publication Date: 2010-09-29
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method also has a serious disadvantage, that is, the accuracy of rut detection is greatly affected by the change of vehicle pitch caused by vehicle vibration and bumps.

Method used

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  • Symmetrical line laser pavement track detection system
  • Symmetrical line laser pavement track detection system
  • Symmetrical line laser pavement track detection system

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Embodiment Construction

[0015] The content of the present invention will be further described below in conjunction with the accompanying drawings, but the actual production structure of the present invention is not limited to the illustrated embodiment.

[0016] Referring to Fig. 1, the symmetric line laser road surface rutting detection system of the present invention consists of the downward shooting camera 4 arranged on both sides of the rear upper part of the system carrying vehicle 1, and the line lasers 14, 7 arranged on the front and rear sides of the rear lower part of the carrying vehicle 1. And the system supports the connection frame. There are two sets of vertical system support rods 2 installed on the two sides of the rear of the system carrying vehicle 1 in the body of the system support connecting frame, and a camera 4 for downward shooting is installed on each of the two support rods 2 A camera holder 3; a rear support rod 8 is respectively hinged with a rearward support rod 8 through...

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Abstract

The invention relates to a symmetrical line laser pavement rut detection system, which comprises two vertical system supporting hack levers installed on the rear part of the system carrying vehicle respectively; a shooting camera is installed on each system supporting hack lever; a front and a rear laser are mounted respectively on the lower part of the two supporting hack lever through a front and rear supporting rod; the two side line laser sends out line laser beams to the inclined downwards direction which symmetrically intersected on the tested pavement surface in the shooting area. In practical work, the front and the line laser send out beams which projects on pavement to form laser scattered lines, and the information of depth, left and right and size of the rut on the pavement can be obtained through the digital shooting camera imaging, image processing and calculating. When the vehicle pitch angle changes for the vibration and bumpiness of the vehicle, or when the pavement has gradients in small rang, the two line lasers displaces to the opposite directions, and taking the mean of the rut detection results can reduce or eliminate the rut detection error and obtain the accurate pavement rut information.

Description

technical field [0001] The invention belongs to the technical field of photoelectric measurement systems, and relates to a photoelectric detection system for object displacement or surface shape and related quality indicators, in particular to a line laser road rutting detection system that can be used to detect road rutting indicators. Background technique [0002] The detection index of pavement rutting is an important content of pavement maintenance and repair management. The unevenness of the ruts on the road surface, especially the accumulation of water in rainy days, often poses a great safety hazard to road traffic, and it is easy to cause the vehicle to slip. Affects the comfort and safety of driving. Therefore, it is very important to quickly detect the rutting of the road to provide accurate road surface condition analysis indicators for road maintenance and repair. [0003] Previously known pavement rutting detection techniques mainly include manual level measur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/01G01B11/22G01B11/00
Inventor 宋宏勋马建马荣贵韩毅樊江顺申福林李平
Owner CHANGAN UNIV
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