Pavement roughness detection system and method

Abstract

The invention relates to a pavement roughness detection system and method, wherein the system comprises at least one reference target, arranged above a to-be-measured pavement; at least one line structured light sensor, used for casting line structured light to the to-be-measured pavement and shooting a light bar image of the line structured light, formed on the to-be-measured pavement; and a computing device, connected with the line structured light sensor; the computing device converts the light bar image received from the line structured light sensor into three-dimensional data, according to the reference target, the three-dimensional data of the to-be-measured pavement is modified, and according to the modified three-dimensional data, the roughness of the to-be-measured pavement is determined. By use of the line structured light sensor for capturing the light bar image of the to-be-measured pavement, then the light bar image is converted into the three-dimensional data, according to the reference target, the three-dimensional data of the to-be-measured pavement is modified, and the roughness of the to-be-measured pavement can be conveniently and accurately determined.

Description

technical field [0001] The invention relates to the field of highway road surface detection, in particular to a road surface smoothness detection system and method. Background technique [0002] In the process of pavement construction, there are many factors that affect the smoothness of the pavement. For example, in the process of form paving with slippery slabs of large-thickness cement concrete, due to the limited power of the vibrating rod, it is easy to cause uneven vibrating of the upper and lower layers of the concrete panel, resulting in a large difference in the density of the upper and lower slabs. In addition, the DBI (Dowel Bar Inserting, Dowel Bar Inserting) device extrudes the extruded concrete during the insertion of the dowel bar. Since the surrounding concrete cannot flow and fill the empty grooves, the road surface is leveled and smoothed by the use of leveling beams. In the process of troweling the road surface with the super trowel, only the mortar can f...

AI Technical Summary

Problems solved by technology

For example, in the construction process of formwork paving with large-thickness cement concrete slabs, due to the limited power of the vibrating rod, it is easy to vibrate unevenly between the upper and lower layers of the concrete slab, resulting in a large difference in the density of the upper and lower slabs

In addition, the DBI (Dowel Bar Inserting) device extrudes the extruded concrete during the insertion process of the dowel bar. Since the surrounding concrete cannot flow to fill the empty groove, the road surface is leveled and In the process of smoothing the road surface with super trowels, only mortar can fill the empty grooves, resulting in aggregate segregation, making it difficult to meet the requirements of compactness and smoothness. After the final setting of concrete, the concrete shrinkage ratio in places where local fine aggregates are concentrated Large, resulting in a decrease in road surface roughness

Decreased road surface roughness due to construction may lead to poor driving comfort

[0003] Therefore, it is necessary to be able to accurately detect the flatness of the road surface. The device needs to be installed on the vehicle to measure the road surface distance by emitting laser light to calculate the flatness. The calculation result is inaccurate and inconvenient to use, and the flatness of the unhardened road surface cannot be detected.

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