Pavement planeness automatic detection device and detecting method

Abstract

The invention discloses a device and a method for automatically detecting the flatness of road surfaces, relates to the field of road surface flatness detection, and aims at overcoming the defects of inaccurate information, a plurality of error sources, complex structure and unsolvable influence of vehicle body obliquity in the prior art. A three-dimensional optical vision detecting component of the device for automatically detecting the flatness of road surfaces comprises an angle sensor and an output end that is connected with an input end of a processing system; structured light bars that are emitted by a laser device of structured lights cover the longitudinal road surface, and the processing system is arranged inside the vehicle body. The method for automatically detecting the flatness of road surfaces comprises the followings steps: (1) the structured light bars of the laser device of structured lights implement imaging on a CCD area array after being modulated by three-dimensional road surface information, and simultaneously shaking information of the vehicle body is collected, and three-dimensional information is computed; (2) disease influence is eliminated by filtering; (3) depth displacement of the road surfaces is computed in the interval of 250mm, and an IRI result of a corresponding road section is computed; (4) data storage, analysis and display are implemented. The device and the method for automatically detecting the flatness of road surfaces have the advantages of complete and accurate extracted longitudinal outline, simple structure, and the eliminated influence of vehicle shaking.

Description

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AI Technical Summary

Benefits of technology

This technology helps reduce measuring errors caused by factors like road conditions or other vehicles' movements during driving without compromising its ability to accurately detect obstacles such as car-bumping attacks. It uses sensors that measure changes over time instead of just comparing measurements from different points along their length, resulting in more accurate data compared with traditional techniques. Additionally it eliminates any interference signals between nearby objects due to the movement being driven through them. Overall, this technology improves safety measures for drivers while reducing damage risk associated therewith.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the performance and reliance of automated road surface assessment systems due to their high errors caused by factors like noise or irregularities in measurements made over long distances along roads. Current solutions involve expensive and time-consuming manual inspections, while current electronic devices lack precise analysis capabilities without sacrifices resolution speed and stability.

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