摘要
针对足尺加速加载试验路路表功能的细微变形测量,提出了用单点激光器(2μm)的测量方法来采集三维路面断面数据,以设计并开发出相应的研究级别测量仪器。对系统总体结构设计与实现及软件设计与实现进行了详细论述,并对三维激光断面数据采集及其图形的重构方法和系统测量误差进行了研究和分析,以此来实现路面三维空间参数的测量,系统测量误差为±0.5 mm。试验结果表明,三维激光断面数据采集技术可以用于路面车辙、构造深度、坑槽等路面的精确测量中,从而实现路面三维数据的高效率、高精度、高自动化的检测。
In order to measure the trivial road deformation by the full-scale accelerated load testing,a theory to acquire 3D laser profile data with a single-point laser（2 μm） was proposed,and a measuring instrument was designed and tested.The design and realization of the broad structure and software were discussed in detail.Moreover,the acquisition of 3D laser profile data and the method of graphic reconstruction as well as the measurement error of the instrument were investigated.Thus,3D information of road surface was obtained by using this measuring instrument with the accuracy of ±0.5 mm.The result indicates that the road indexes such as rut,structural depth and pot holes can be acquired through this 3D laser profile data acquisition system with high efficiency and accuracy.
出处
《公路交通科技》
CAS
CSCD
北大核心
2010年第6期9-14,39,共7页
Journal of Highway and Transportation Research and Development
关键词
道路工程
三维数据采集
激光测量
路面功能变化量
PLC控制
检测
road engineering
3D data acquisition
laser measurement
the amount of surface functional change
PLC control
measurement
