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为了提高先进装备制造过程中大型工件测量与定位的精度与效率,构建了扫描平面激光空间定位系统测量网络,研究相应的坐标系配准技术以充分融合各测站的信息。结合单系统的单发射站基于旋转平面激光自动测角和双发射站交汇测量原理,提出了基于刚体重心基准的坐标系配准算法,将各单系统的测量数据有效整合,实现测量网络的构建。搭建了由4个发射站组成的多系统测量网络实验平台,整体测量精度达到0.1 mm以下,显著优于单系统。测量网络有效解决了单系统不通视、精度低的问题,拓展了量程,提高了测量效率,增强了冗余性和可靠性。
In order to improve the accuracy and efficiency of measurement and positioning of large-scale workpieces during the manufacture of advanced equipment, a survey network of scanning plane laser space positioning system is established and the corresponding coordinate system registration technique is studied to fully integrate the information of each station. Combining with the single-station single-launch station based on the principle of rotating plane laser automatic angle measurement and dual-launch station intersection measurement, a coordinate system registration algorithm based on rigid-body center of gravity is proposed to effectively integrate the measurement data of each single system to realize the measurement network Construct. A multi-system measurement network experimental platform consisting of 4 transmitting stations is set up. The overall measurement accuracy is less than 0.1 mm, which is significantly better than single-system. The measurement network effectively solves the problem that the single system is not visible and the accuracy is low, the range is expanded, the measurement efficiency is improved, and the redundancy and reliability are enhanced.