Road pavement elevation detection system and road pavement elevation detection method

Abstract

The invention discloses a road pavement elevation detection system and a road pavement elevation detection method. The road pavement elevation detection system consists of a laser displacement sensor,a gyroscope, a data reading terminal and the like. The road pavement elevation data is collected to establish a three-dimensional virtual road pavement model and evaluate the road pavement conditions; a trolley is driven by front wheels of the trolley to drive on the road pavement; the system starts to work, the laser displacement sensor is used for collecting the road pavement elevation data inreal time, and the gyroscope is used for detecting the attitudes of the trolley; when the wheels of the trolley pass through the convex or concave part of the road pavement, the road pavement elevation data measured by the laser displacement sensor produces measurement error; the attitudes of the trolley are detected by the gyroscope, and a correlation model between the attitudes of the trolley and the measurement error of the laser displacement sensor is established; finally, the data reading terminal is used for correcting the measurement error of the laser displacement sensor, and the accurate road pavement elevation data is calculated. By adoption of the system for accurately measuring the road pavement elevation data, the road pavement elevation data can be accurately measured, so that the cost and labor can be reduced.

Description

technical field [0001] The invention belongs to the field of measuring equipment, and in particular relates to a road surface elevation detection system and a detection method thereof. Background technique [0002] Pavement elevation data can provide a data basis for establishing a three-dimensional virtual pavement model and evaluating pavement conditions. Vehicle road tests require a lot of manpower and financial resources, and the establishment of virtual road surface simulation models for road tests can save a lot of cost; the International Roughness Index (IRI), as an evaluation index for road surface roughness, is also calculated from the road surface elevation . The traditional measurement methods of road elevation are leveling method and triangular elevation measurement. At present, the most widely used road elevation measuring instruments are level and total station. The measurement speed of the station instrument is faster, but the accuracy is lower, and the cost...

AI Technical Summary

Problems solved by technology

The laser profiler is generally towed by a motor vehicle, and it is required to maintain a high speed and move forward at a constant speed as much as possible to maintain good accuracy. In low-speed road sections or traffic light intersections, the road elevation data that the instrument cannot collect has a large error

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