Road roughness detection method

Abstract

The invention discloses a road smoothness detection method, which belongs to the field of road detection. The present invention includes a signal collection step: transmitting and receiving spectral signals to the optical fiber through an optical fiber mediator; a coordinate conversion step: corresponding the spectral signal to the optical fiber label, and converting it into an optical fiber label signal; a signal analysis step: combining the optical fiber label signal with the optical fiber coordinate value Comparative analysis to find out the deformation coordinate values ​​of the difference points; signal judgment step: based on the deformation coordinate value, judge whether the deformation coordinates can be connected to form a deformation area, if so, omit the middle point and retain the edge points, and then connect to form The deformed area of ​​the polygon; if not, it is judged as the deformed point; the image display step: display the deformed area / deformed point in the initial fiber coordinate system in real time. The invention judges the change of road surface smoothness by laying optical fiber in the road and detects the reflection of light inside the optical fiber in real time, and accurately finds the deformation point / area of ​​the road surface.

Description

Technical field [0001] The present invention relates to the technical field of road detection, particularly to a technical field of detection of the road grading. Background technique [0002] After the completion of road paving, due to the terrain settlement, deformation, rain erosion, the vehicle is running, heavy rolling and other reasons, easily lead to deformation of the road side of the road, such as the formation of pits or bumps caused by road deformation, thereby affecting road travel safety , especially road runways, race track, roads and other experiments, the flatness of the road as very high; hence the need for long-term flatness of the road for testing. [0003] At present, the road flatness detection methods include: [0004] 1, the conventional method for detecting foot 3M, by up to 3 meters ruler placed on the road, the road to see the ruler case bonding surface, to determine the flatness of the road surface. Analyzing this manner only problem area Pavement to 3 ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to: address the above existing problems, to provide a road smoothness detection method, by laying optical fibers in the road, real-time detection of light reflection in the optical fiber to judge the change of the road surface roughness, and the initial database Comparing and judging, accurately finding the road surface deformation point / area can solve the problem of accurate flatness detection of the road surface; it also solves the problem that the road surface flatness cannot be monitored in real time; it also solves the problem that the curved / curved road cannot be detected The problem of detecting whether deformation occurs

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