Asphalt pavement surface 3D data acquisition system based on line-structure light(PDF)
长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]
- Issue:
- 2016年04期
- Page:
- 9-17
- Research Field:
- 道路工程
- Publishing date:
Info
- Title:
- Asphalt pavement surface 3D data acquisition system based on line-structure light
- Author(s):
- SUN Zhao-yun; HUYAN Ju; LI Wei; WEI Zi-yao; LIU Zhu
- (School of Information Engineering, Chang’an University, Xi’an710064, Shaanxi, China)
- Keywords:
- road engineering; line-structure light; asphalt pavement; 3D data
- PACS:
- U416.04
- DOI:
- -
- Abstract:
- To solve the problem of poor real-time, low accuracy of current asphalt pavement surface 3D data acquisition system, which can not provide 3D pavement data comprehensively, this paper studied an asphalt pavement 3D data acquisition system based on line-structure light. The system was a three-dimensional equipment with optical and electrical integration and automation, which was designed for domestic road three-dimensional information detection. It could realize data collection, analysis, processing, 3D display for asphalt pavement surface topography. The system used infrared laser light source, planar array CCD camera and digital image detection technology. This system computed the 3D depth information based on laser triangulation algorithm, finished 3D reconstruction of road surface morphology by use of MATLAB software to obtain 3D display after reconstruction, and did quantitative analysis of detection results. Based on modular design, this system mainly consisted of power supply module, salve computer control module, counting trigger module, laser triangulation detection module, GPS module and data processing module. The 3D data of asphalt pavement were obtained through testing software’s driving hardware modules. The results show that modular design improves anti-interference, making the system structure simple and clear, and relieve from the complex wires. It is convenient for debugging, maintenance, shorten development cycle, and the cost for development and maintenance is also reduced. The results also show that the system can not only meet the requirements of asphalt pavement 3D data acquisition and the requirements of real-time detection, but also provide vivid and visualized 3D visual topography.
Last Update: 2016-07-28