3D paving system and method for detecting self-adaptive virtual paving thickness based on matrix ultrasonic waves

Abstract

The invention discloses a 3D paving system for detecting a self-adaptive virtual paving thickness based on matrix ultrasonic waves, comprising: a paving machine comprising a screed plate and balance beams mounted on two sides of the screed plate; detection equipment which comprises at least six ultrasonic detectors which are respectively arranged at the front end, the middle end and the rear end of the paving machine; positioning equipment which is used for synchronizing the incidence relation between the detection value of each ultrasonic detector and the plane position of the detector, and comprises a GPS positioning device; and a control terminal which obtains the design surface elevation of the corresponding position and the construction result surface elevation of the previous structural layer through synchronous matching of the current position information of each detector, realizes self-adaptive dynamic change to calculate virtual paving control parameters, and sends an instruction to drive the paving machine based on the virtual paving control parameters; the 3D paving system for detecting the self-adaptive virtual paving thickness based on the matrix ultrasonic waves has the advantages of automatic detection, high precision and dynamic continuous detection.

Description

technical field [0001] The invention relates to a 3D paving system and method based on matrix ultrasonic detection and adaptive virtual paving thickness. Background technique [0002] There are mainly two kinds of existing paving virtual paving thickness detection methods: [0003] 1) Pile driving and hanging wire [0004] The inspection personnel use steel brazing to insert into the road base on the original ground. The steel brazing is marked according to the calculated virtual paving position, and then the wire rope is used to pull between the marked points. When the contact slipper is used to contact the steel wire rope, the paver is moving. Constantly adjust the virtual pavement thickness according to the contact sensor of the sliding shoe. [0005] 2) Non-contact balance beam [0006] Its leveling principle: Multiple ultrasonic or laser sensors installed on the horizontal beam test the unevenness signal of the roadbed and upload it to the balance beam controller. Af...

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Problems solved by technology

[0008] 1) Manual thread-hanging speed is slow, low efficiency and low precision;

[0009] 2) The non-contact balance beam can only perform equal-thickness paving of the set value, which is equivalent to the copy of the previous layer; resulting in a quality result that depends on the construction process of the previous structural layer

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