A system for real-time measurement of relative deformation of soil layer compacted by road roller

Abstract

A system and method for real-time measurement of the relative deformation of the compacted soil layer of a road roller, characterized in that it includes a mounting frame, a laser scanning device, a satellite positioning device, and an airborne signal analyzer; A laser scanning device is installed on the mounting bracket, and the laser beam of the laser scanning device maintains a vertical posture with the soil layer; a satellite positioning device is set on the top of the road roller, and an airborne signal analyzer is set in the driving platform of the road roller; The scanning device has fast ray speed, fast photoelectric conversion speed, small concentration and dispersion, and high measurement distance accuracy. It has the characteristics of multiple beams such as rays and reflection lines when working. It is used to measure the inner side of the front wheel of the road roller and the outer side of the wheel. The difference between the relative distance of the rolling surface can be used to judge the deformation of the roller during rolling, to realize the measurement of improving the accuracy of rolling, to reduce the error caused by the vibration state of the road roller, and to measure the rolling deformation in real time and efficiently.

Description

technical field [0001] The invention belongs to the technical field of construction machinery, and specifically relates to a system for real-time measuring the relative deformation of a soil layer rolled by a road roller. Background technique [0002] With the rapid development of unmanned driving technology, unmanned road rollers have begun to be put into use in infrastructure, energy, water conservancy and other engineering projects. The measurement accuracy of the rolling deformation of the road roller not only affects the running process, but also affects the quality of the rolling operation, and is even more related to safety issues. The measurement and control of the rolling deformation of the road roller is the key to ensuring its normal construction operation. Therefore, the technology of measuring the relative subsidence deformation of the road roller laser scanning device is essential for unmanned road rollers. [0003] In the field of rolling deformation measurem...

AI Technical Summary

Problems solved by technology

This method is used in the measurement of rolling deformation of unmanned road rollers. It is greatly affected by temperature and the accuracy is poor, so it is difficult to achieve effective measurement.

[0004] The rolling deformation sensor has high requirements on the stability of the device and the anti-vibration performance during the machine walking process. If the sonar sensor is used to measure the rolling deformation of the roller, large errors will occur

The working scene of the road roller has its particularity. Generally, there will be various factors such as uneven road surface and operation vibration, which will cause large errors in the sonar sensor, which cannot meet the requirements of control accuracy.

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