Macro-micro texture separate acquisition device based on pavement texture spectral analysis

Abstract

The invention provides a macro-micro texture separate acquisition device based on pavement texture spectral analysis. The macro-micro texture separate acquisition device comprises a main body rack, a linear moving module, an acquisition head, a controller and a mobile power supply, the linear moving module is arranged on the inner side of the top of the main body rack, and the acquisition head is connected with the input end of the controller; the mobile power supply is electrically connected with the acquisition head and the electric energy input end of the controller; the linear moving module comprises a transverse moving mechanism and a longitudinal moving mechanism; the acquisition head is an image acquisition head based on spectral analysis and comprises a macroscopic scanning acquisition head and a microcosmic scanning acquisition head; a mounting plate is arranged on a moving part of the longitudinal moving mechanism, and the acquisition head is arranged on the mounting plate; the transverse moving mechanism and the longitudinal moving mechanism are driven by a servo motor; monitoring of a to-be-monitored region is achieved; and according to the invention, the two sets of macro-micro precision acquisition heads are matched with servo motor signals with different trigger frequencies, so that macro-micro textures are separately acquired, and the contradiction of texture acquisition in the aspects of precision, data volume, sampling area and the like is solved and accurate and complete data are provided for realizing road surface texture spectrum analysis.

Description

technical field [0001] The invention belongs to the field of pavement surface texture testing, and in particular relates to a rapid pavement texture collection equipment system based on spectrum analysis that can be used indoors and outdoors to collect macro and micro textures separately. Background technique [0002] In 2016, nearly 1.3 million people were killed in traffic accidents around the world every year, and 50 million people were injured or disabled, and the number has continued to increase in recent years. The lack of skid resistance of pavement is one of the important reasons leading to traffic accidents. The texture structure of the pavement surface is an important factor affecting the anti-skid performance of the pavement. The friction or slip resistance of pavement surfaces can be obtained from textures of different configurations. Larson et al. (2004) showed that 70% of traffic accidents in wet weather could be prevented by improving road texture or frictio...

AI Technical Summary

Problems solved by technology

It can be seen that the main problems of the above-mentioned existing equipment that can be used for pavement texture collection are that most of the equipment can meet the scanning of the macro texture of the road surface, and the equipment that can meet the micro texture scanning mainly has the problems of small scanning area, low scanning speed and high cost.

[0006] Another important issue is that the wavelength of pavement texture covered by macro and micro textures is 0.005-50mm. Almost all equipment on the market basically has a characteristic, that is, scanning equipment that can meet the wavelength range of macro textures cannot meet the requirements of micro textures in accuracy. Scanning, the equipment that can meet the requirements of microscopic texture scanning has seriously restricted the collection of macroscopic textures due to problems such as scanning area, scanning efficiency, and excessive data storage.

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