Optics and Precision Engineering, Volume. 33, Issue 5, 728(2025)

Multi-target pose measurement method based on distance and angle parallel measurement

Shuo YANG1, Ye HAN2, Linghui YANG1、*, Tengfei WU1, Shendong SHI1, Wenbo DONG1, and Jigui ZHU1
Author Affiliations
  • 1State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin300072, China
  • 2Shenyang Aircraft Corporation, Shenyang110801, China
  • show less

    Large-scale precision pose measurement technology plays a critical role in the automation and high-precision assembly of advanced equipment, including aircraft, spacecraft, ships, and radio telescopes. This paper addresses the limitations of traditional methods that frequently overlook the simultaneous optimization of measurement efficiency and accuracy. A novel multi-target pose measurement technique, which utilizes parallel distance and angle measurements, is proposed. This approach employs rotary-laser scanning for the autonomous identification of multiple targets while providing high-precision angular constraints. A high-dynamic steering mirror aligns the absolute ranging beam with cooperative targets, thereby facilitating point-by-point scanning for parallel measurements. Additionally, a cooperative target is designed, integrating photoelectronic receivers and retroreflectors, and a precise pose measurement model is formulated that fuses distance and angle data through weighted considerations. Furthermore, a high-precision calibration method for system parameters is introduced, and a detailed analysis of measurement uncertainty is presented. The relationship between target position and orientation relative to the base station and pose measurement accuracy is thoroughly examined. Experimental validation confirms the method's feasibility and accuracy, achieving position and attitude measurement precision of better than 0.131 mm and 0.041°, respectively, with repeatability better than 0.034 mm and 0.018°. The average measurement time for each target in the multi-target assessment is 0.9 s. This method effectively combines high efficiency with measurement accuracy in multi-target pose evaluation.

    Keywords
    Tools

    Get Citation

    Copy Citation Text

    Shuo YANG, Ye HAN, Linghui YANG, Tengfei WU, Shendong SHI, Wenbo DONG, Jigui ZHU. Multi-target pose measurement method based on distance and angle parallel measurement[J]. Optics and Precision Engineering, 2025, 33(5): 728

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Nov. 4, 2024

    Accepted: --

    Published Online: May. 20, 2025

    The Author Email: Linghui YANG (icelinker@tju.edu.cn)

    DOI:10.37188/OPE.20253305.0728

    Topics