Optimal Calibration Method of Dual-Vision Measurement Experimental System for Assembly Docking

KONG Jun; LI Qiang; WANG Luming; LIU Haotong; WANG Baojun; CUI Haihua

doi:10.16080/j.issn1671-833x.2023.12.014

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Optimal Calibration Method of Dual-Vision Measurement Experimental System for Assembly Docking

更新时间：2025-10-30

- Optimal Calibration Method of Dual-Vision Measurement Experimental System for Assembly Docking
- Aeronautical Manufacturing Technology Vol. 66, Issue 12, Pages: 14-20(2023)
- 作者机构：
  
  1. 北京交通大学,北京,100044
  2. 南京航空航天大学,南京,211106
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2023.12.014
  CLC：
- Published：2023
- 稿件说明：
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孔军，李强，王陆明，刘昊曈，王宝俊，崔海华. 面向装配对接的双视觉测量试验系统优化标定方法[J]. 航空制造技术, 2023, 66(12): 14-20.

KONG Jun, LI Qiang, WANG Luming, LIU Haotong, WANG Baojun, CUI Haihua. Optimal Calibration Method of Dual-Vision Measurement Experimental System for Assembly Docking[J]. Aeronautical Manufacturing Technology, 2023, 66(12): 14-20.
孔军，李强，王陆明，刘昊曈，王宝俊，崔海华. 面向装配对接的双视觉测量试验系统优化标定方法[J]. 航空制造技术, 2023, 66(12): 14-20. DOI： 10.16080/j.issn1671-833x.2023.12.014.

KONG Jun, LI Qiang, WANG Luming, LIU Haotong, WANG Baojun, CUI Haihua. Optimal Calibration Method of Dual-Vision Measurement Experimental System for Assembly Docking[J]. Aeronautical Manufacturing Technology, 2023, 66(12): 14-20. DOI： 10.16080/j.issn1671-833x.2023.12.014.

摘要

针对航空航天、轨道交通零部件装配对接测量与定位过程，为解决测量视场范围大、多种测量设备组合使用步骤烦琐等问题，对面向装配对接的双视觉测量系统标定方法进行了研究。通过构建双视觉测量系统模型，分析系统间各相机参数的关系，在单个双目系统中引入闭环约束，结合LM 算法对单个双目系统中的相机参数进行优化，另外采用改进的EPnP 算法对双视觉系统进行标定，并结合自行设计的双面一维靶标完成了双视觉系统的全局标定和坐标转换。模拟对接试验的结果表明，该优化标定算法在精度上优于传统算法，并在使用过程中简化测量步骤，提高测量效率。

Abstract

Aiming at the measurement and positioning process of assembly and docking of aerospace and rail transit vehicle parts

in order to solve the problems of large measurement field range and complicated use of multiple measurement equipment combination

the calibration method of dual-vision measurement system facing assembly and docking was studied. By constructing the model of the dual-vision measurement system

analyzing the relationship between the camera parameters between the systems

introducing closed-loop constraints and LM algorithm to optimize the camera parameters in the single binocular system

and using the improved EPnP algorithm to calibrate the dual-vision system

and combining the self-designed double-sided one-dimensional target to complete the global calibration and coordinate conversion of the dual-vision system. The simulation docking experiment results show that the optimized calibration algorithm is superior to the traditional algorithm in accuracy

and simplifies the measurement steps and improves the measurement efficiency in the process of use.

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