基于车载激光点云的道路平整度检测新方法研究  

Research on New Detection Method of Road Flatness Based on On-board Laser-point Cloud

作　　者：黄庆财 HUANG Qingcai

机构地区：[1]福州新区开发投资集团有限公司,福建福州350000

出　　处：《城市道桥与防洪》2023年第1期57-60,I0009,共5页Urban Roads Bridges & Flood Control

基　　金：福建省住房和城乡建设厅科技研究开发项目(2020-k-99)。

摘　　要：路面平整度是评定道路路面质量的主要技术指标之一,传统的平整度测量方法检测效率低、劳动强度大,难以满足道路快速巡检和公路养护的需求。移动测量系统能够快速动态获取高精度道路点云数据,能详细再现道路的细节特征。因此,通过分析车载点云的精度特点以及国际平整度IRI的计算方法,提出一种应用车载激光点云进行路面平整度检测的方法,首先对车载点云数据进行预处理,沿轮迹带方向提取路面点;然后采用等间距邻域均值采点的方式获取路面高程值;最后使用路面高程值进行IRI计算并与高精度水准数据计算的标定结果进行对比。实验结果表明,车载移动测量系统能够用于路面平整度的快速检测。为道路三维快速巡检和公路养护提供了技术支持。Pavement flatness is one of the main technical indexes for evaluating the pavement quality of road.The traditional detection method of flatness has the low detection efficiency and high labor intensity,which is difficult to meet the needs of quick routing inspection and highway maintenance.The mobile measurement system can quickly and dynamically obtain the high-precision road point cloud data and reproduce the detailed features of road in detail.Therefore,by analyzing the accuracy characteristics of the on-board point cloud and the calculation method of international flatness IRI,a method of applying the on-board laser-point cloud to detect the pavement flatness is put forward.Firstly,the on-board point cloud data is preprocessed and the pavement points are extracted along the direction of the wheel track belt.Then,the pavement elevation value is obtained by using the method of equal spacing neighborhood mean sampling points.Finally,IRI is calculated by using the pavement elevation value and compared with the calibration results calculated by high-precision leveling data.The experimental results show that the on-board mobile measurement system can be used for the rapid detection of pavement flatness,which provides the technical support for 3D quick routing inspection and highway maintenance.

关 键 词：车载移动测量系统 路面平整度 激光点云数据 

分 类 号：P237[天文地球—摄影测量与遥感]