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为提高三维面型检测的效率和精度,研究了利用激光雷达对三维复杂型面进行扫描测量的技术。首先介绍了激光雷达测量系统的工作原理,然后对激光雷达测量技术的关键技术——转站技术和定标技术做了详细的研究,采用工具球以提高定标精度,并利用转站技术对标准环进行转站测量和坐标变换。最后对复杂面型进行了三维扫描测量,并利用软件对激光雷达获取的三维点云数据进行重建,并对其精度做了理论分析。结果表明,激光雷达技术在测量精度、测量效率、自动化程度等方面具有明显的优点,可以实现对三维复杂型面的精密测量。
In order to improve the efficiency and accuracy of three-dimensional surface detection, the technology of laser scanning of three-dimensional complex surface is studied. Firstly, the working principle of LIDAR measurement system is introduced. Then the key technologies of LIDAR measurement technology, ie, transfer station technology and calibration technology, are studied in detail. The tool ball is used to improve the calibration accuracy and the transfer station technology is used Standard loop transfer station measurement and coordinate transformation. Finally, the complex surface is measured by 3D scanning, and the 3D point cloud data acquired by Lidar are reconstructed by software, and its accuracy is analyzed theoretically. The results show that the laser radar technology has obvious advantages in measurement accuracy, measurement efficiency, degree of automation and so on, and can realize the precise measurement of the three-dimensional complex profile.