摘要
为了实现激光束对充电目标的高精度瞄准,基于双目成像的几何光学原理,提出了一种由两个相机组成的双目瞄准系统,通过分析相机、激光发射端口、充电目标的相对位置关系,优化双目相机与激光发射端口的位置,得到实现高精度瞄准的技术方案,从理论和实验上实现了横向、纵向较大范围内的高精度瞄准。理论计算和实验测量结果表明,该系统在选用焦距为20 mm的相机镜头时,对距离激光发射端口为3 m处、面积为4 m×4 m的平面上各点的瞄准误差不超过1.6 mm;使用焦距为50 mm的镜头时,该系统对纵向区域上距离激光发射端口10 m内的目标的瞄准误差不超过2 mm。因此该系统瞄准精度高,且装置简单,操作方便,是一种可用于激光充电技术的高效便捷瞄准方法。
In this paper,based on the geometrical optics principle of binocular imaging,we propose a binocular aiming system composed of dual cameras,which realizes the large-range and high-precision aiming of the laser beam on the charging target.By analyzing the positional relationship among the camera,the laser emitting port,and the charging target,large scale horizontal and vertical aiming as well as high-precision aiming has been realized theoretically and experimentally.The theoretical and experimental results show that when the focal length of the camera lens is 20 mm,the aiming error of each point is less than 1.6 mm on the 4 m×4 mplane 3 maway from the laser emission port;when the focal length of the camera lens is 50 mm,for the target 10 maway from the laser emission port in longitudinal area,the aiming error of the target does not exceed 2 mm.The system has the advantages of high aiming accuracy,simple device,and convenient operation,and it is an efficient and convenient aiming method that can be used in laser charging technology.
作者
邓烈刚
李文峰
杨雁南
Deng Liegang;Li Wenfeng;Yang Yannan(College of Science,Nanjing University of Aeronautics and Astronautics,Nanjing,Jiangsu 211106,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2021年第14期424-430,共7页
Laser & Optoelectronics Progress
基金
国家自然科学基金(51577091)。
关键词
机器视觉
激光充电
双目视觉
激光瞄准
machine vision
laser charging
binocular vision
laser pointing
