摘要
针对飞机蒙皮对缝间隙和阶差的自动化测量问题,以线结构光视觉检测技术为基础,研究了蒙皮对缝自主测量跟踪方法。将传统的基于图像形态学的处理方法和光流法结合,实现了对蒙皮对缝特征的实时跟踪,从而确定间隙和阶差的测量位置。通过实测数据对手眼标定参数进行修正,提高了对缝跟踪的精度。结果表明,当跟踪速度为7 mm/s时,对缝跟踪的位置精度大于0.500 mm,对缝跟踪的姿态精度大于0.5°,跟踪系统具有较好的准确性和稳定性,能够满足飞机蒙皮对缝跟踪的要求。
Aiming at the automation measurement problem of aircraft skin seam gaps and step differences,a skin seam autonomous tracking method is studied based on line structured light visual detection technology.By combining traditional image morphology based processing methods with optical fow methods,real-time tracking of skin seam features is achieved,thereby determining the measurement positions of gaps and step differences.The accuracy of seam tracking was improved by correcting the eye-in-hand calibration parameters based on measured data.The experimental results show that when the tracking speed is 7 mm/s,the position accuracy of seam tracking is higher than 0.500 mm,and the attitude accuracy of seam tracking is higher than 0.5°.This tracking system has good accuracy and stability and can meet the requirements of aircraft skin seam tracking.
作者
张学涛
候国义
赵子越
孙安斌
李泷杲
赵鹏
ZHANG Xuetao;HOU Guoyi;ZHAO Ziyue;SUN Anbin;LI Shuanggao;ZHAO Peng(AVIC Changcheng Institute of Metrology&Measurement,Beijing 100095,China;Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《航空制造技术》
CSCD
北大核心
2024年第16期85-93,共9页
Aeronautical Manufacturing Technology
关键词
蒙皮对缝
多线结构光
光流法
自主跟踪
机器视觉
Aircraft skin seams
Multi-line structured light
Optical fow method
Autonomous tracking
Machine vision
作者简介
张学涛,高级工程师,研究方向为航空计量测试数字化技术;通讯作者:李泷杲,副教授,博士,研究方向为飞机装配。
