一种面向叉耳式翼身对接的视觉测量方法

针对某型叉耳式翼身对接飞机在外场拆卸重装等特殊环境下,激光跟踪仪因现场环境等原因难以放置到满足测量精度要求的位置上进行直接测量的问题,提出一种基于视觉的直接测量方法。并搭建出该测量系统的模型,分析建立视觉测量系统所涉及到的关键技术,同时给出一种基于弧段组合的椭圆检测方法。最终通过模拟叉耳孔对接测量试验验证该方法的可行性。试验结果表明叉耳孔轴线间隙距离测量精度可达0.03mm,轴线角度测量精度达到0.025°,满足实际对接测量要求。

A Vision Measuring Method for Fork Type Wing-Fuselage Docking

It is dififcult to be placed in the position of the laser tracker to meet the requirement of measuring accuracy for the special environment such as the external disassembly and reassembly of a certain type of fork type wing-fuselage docking aircraft. Firstly, this paper presents a direct measurement method based on vision. Secondly, builds the measure-ment system model, analyzes the key technology of vision measurement system involved, and presents a method of ellipse detection based on arc combination. Finally, through the simulation test of fork type wing-fuselagedocking, veriifes the ac-tual feasibility of these method. The experimental results show that the cross axis gap distance measurement precision can reach 0.03mm, and the axis angle measurement accuracy reaches 0.025°, which meets the requirements of actual docking measurement.