Detection method and detection system for three-dimensional pavement elevation grid numerical value

路面高程三维网格数值检测方法与检测系统

Abstract

本发明提供一种路面高程三维网格数值检测方法与检测系统,该检测系统包括测量平台以及可移动式测量小车,测量小车可沿车道移动,测量平台上安装有扇形面激光发射器和面阵CCD,扇形面激光发射器用于发射一与车道所在路面垂直的扇形平面激光,该扇形平面激光横向切交车道并形成一横跨车道双侧白线的横断面激光标线,面阵CCD构成一路面激光标线图像采集装置用于采集路面激光标线图像,测量小车上安置计算机图像采集与信息处理系统以发送图像采集控制信并进行图像处理,得到按照车道白线为Y轴的网格坐标数据库。本发明利用车道两侧白线以及激光连续测量形成正交网格数据库,可基于此实现路面技术指标的全面检测。
The invention provides a detection method and a detection system for a three-dimensional pavement elevation grid numerical value. The detection system comprises a measuring platform and a movable measuring trolley, wherein the measuring trolley can move along a lane, a sectorial laser transmitter and a planar array CCD (Charge Coupled Device) are installed on the measuring platform, the sectorial laser transmitter is used for transmitting sectorial planar laser perpendicular to the pavement of the lane, the sectorial planar laser is transversely tangent with the lane to form a cross-section laser marked line which stretches across white lines on two sides of the lane, a pavement laser marked line image acquisition device is formed by the planar array CCD and used for acquiring pavement laser marked line images, and a computer image acquisition and information processing system is arranged on the measuring trolley to send image acquisition control information and process the images so as to obtain a grid coordinate database by taking the white lines of the lane as the Y-axis. The detection method and the detection system provided by the invention utilize the white lines on the two sides of the lane and the laser for continuous measurement to form an orthogonal grid database, and the comprehensive detection on pavement technical indicators can be realized based on the orthogonal grid database.

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    CN-104197851-BNovember 07, 2017重庆交通大学车载桥面形态‑结构安全检测系统及方法
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