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经纬仪测量设备能够获取卫星及星上仪器设备安装的角度和位置等精测数据,而从测量数据本身不易直观分析出航天器壳体结构和星上设备安装的精度。为此设计了一种基于Unity的航天器精测数据可视化模型——U-SAM。本文在分析目前航天器精测数据可视化存在问题的基础上;重点阐述和论证结合立方镜准直测量原理设计U-SAM可视化模型的方法;并测试了基于U-SAM模型的可视化效果。结果表明,基于该模型对测量数据可视化能够形象、直观、快速地反映测量数据目前具有的或在随后的测量过程中可能出现的误差趋势,从而指导工作人员对设备总装、测量手段等进行不断地调整和优化。该模型能够高效地对测量数据进行诊断,检测测量数据的正确性和有效性为航空航天部门提供技术支持,减轻测量工作强度,提高工作效率。
Theodolite measuring equipment can acquire the precise measurement data such as the angle and the position of satellite and satellite equipment installation, and it is not easy to visually analyze the precision of the spacecraft shell structure and the satellite equipment installation from the measurement data itself. To this end, we design a unified visualization model of spacecraft precision measurement data based on Unity - U-SAM. Based on the analysis of the existing problems in the visualization of spacecraft precision data, this paper mainly elaborates and demonstrates the method of designing the U-SAM visualization model based on the principle of collimation of cubic mirrors. The visualization effect based on the U-SAM model is also tested. The results show that the visualization of measurement data based on this model can vividly and directly reflect the error trends that may exist in the measurement data at present or in the subsequent measurement process so as to guide the staff on the equipment assembly, measurement means, etc. Adjust and optimize. The model can efficiently diagnose the measurement data, detect the correctness and validity of the measured data, provide technical support to the aerospace department, reduce the intensity of measurement and improve work efficiency.