基于结构光的飞机蒙皮对缝自主测量跟踪技术  

Autonomous Tracking Measurement Technology for Aircraft Skin Seam Based on Structured Light

作　　者：张学涛[1] 候国义 赵子越[1] 孙安斌[1] 李泷杲[2] 赵鹏[2] 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)

机构地区：[1]航空工业北京长城计量测试技术研究所,北京100095 [2]南京航空航天大学,南京210016

出　　处：《航空制造技术》2024年第16期85-93,共9页Aeronautical Manufacturing Technology

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.

关 键 词：蒙皮对缝 多线结构光 光流法 自主跟踪 机器视觉 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] V262[自动化与计算机技术—计算机科学与技术]