基于周向约束定位原理的周向接收器标定方法
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摘要
针对工作空间测量定位系统(w MPS)存在交会误差,且在复杂测量现场中存在空间遮挡问题,文中在研究周向接收器测量原理的基础上设计了一种全新的周向接收器。该接收器在一个平面内固定了6个光电接收单元,通过标定6个单元的位置关系使其成为一个整体,进而实现测量功能。以两台发射站为基础,详细阐述了该周向接收器标定方法,并依托天津大学研发的w MPS实验平台对该方法进行了实验验证。实验结果显示:周向接收器的测量重复性在0.2 mm以内,测量精度在0.3 mm以内,该方法在解决系统在复杂测量现场中的空间遮挡问题的同时,从原理上消除了交会误差对测量结果的影响。
In allusion to the intersection error of workspace Measurement and Positioning System(w MPS)and the occlusion problem in the complicated measurement spot, a new circumference receiver was designed based on multi-angle circumference constraint location method and the calibration method was presented.With scanning laser plane measurement principle and feature, the receiver consisted of six photoelectric receiving elements was fixed on a cyclinder. The structure and the calibration method of the circumference receiver were elaborated in detail based on two laser transmitters in this paper. The calibration method was verified with w MPS experimental platform designed by Tianjin University. The experiment results show that the measurement repeatability of the calibration is within 0.2 mm and the accuracy is within 0.3 mm. This method solves the complicate measurement system space scene occlusion and eliminates the impact of intersection error on the measurement result in principle.
In allusion to the intersection error of workspace Measurement and Positioning System(w MPS)and the occlusion problem in the complicated measurement spot, a new circumference receiver was designed based on multi-angle circumference constraint location method and the calibration method was presented.With scanning laser plane measurement principle and feature, the receiver consisted of six photoelectric receiving elements was fixed on a cyclinder. The structure and the calibration method of the circumference receiver were elaborated in detail based on two laser transmitters in this paper. The calibration method was verified with w MPS experimental platform designed by Tianjin University. The experiment results show that the measurement repeatability of the calibration is within 0.2 mm and the accuracy is within 0.3 mm. This method solves the complicate measurement system space scene occlusion and eliminates the impact of intersection error on the measurement result in principle.
引文
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[11]Yang Linghui,Zhu Jigui,Zhang Guangjun,et al.Orientation method for workspace measurement positioning system based on scale bar[J].Journal of Tianjin University,2012,45(9):814-819.(in Chinese)
[12]Lao D B,Yang X Y,Zhu J G,et al.2011 Optimization of calibration method for scanning planar laser coordinate measurement system[J].Opt Precision Eng,2011,19(4):870-877.
[13]Maisano D A,Jamshidi J,Franceschini F,et al.Indoor GPS:system functionality and initial performance evaluation[J].International Journal of Manufacturing Research,2008,3(3):335-349.
[2]Duanmu Qiong,Yang Xueyou,Zhu Jigui,et al.3D coordinate measurement system based on optoelectronic scanning[J].Infrared and Laser Engineering,2011,40(10):2014-2019.(in Chinese)
[3]Yang Linghui,Zhu Jigui,Wei Zhenzhong,et al.Correction method for orientation parameters of workspace measurement positioning system[J].Infrared and Laser Engineering,2012,41(6):1629-1634.(in Chinese)
[4]Ye Shenghua,Zhu Jigui,Zhang Zili,et al.Status and development of large-scale coordinate measurement research[J].Acta Metrologica Sinica,2008,29(4A):1-6.(in Chinese)
[5]Yang Linghui.Research on large-scale space coordinate measurement location technology based on optical scanning[D].Tianjin:Tianjin University,2010.(in Chinese)
[6]Liu Zhexu.Research on measurement and positioning method in large complex field[D].Tianjin:Tianjin University,2014.(in Chinese)
[7]Muelaner J E,Wang Z,Jamshidi J.Uncertainty of angle measurement for a rotary-laser automatic theodolite(R-LAT)[J].Engineering Manufacture,2008,223(B3):217-229.
[8]Xiong Z,Zhu J,Zhao Z,et al.Workspace measuring and positioning system based on rotating laser planes[J].Mechanika,2012,18(1):94-98.
[9]Yang Linghui,Yang Xueyou,Zhu Jigui,et al.Novel method for spatial angle measurement based on rotating planar laser beams[J].Chinese Journal of Mechanical Engineering,2010,23(6):758-764.
[10]Lao Dabao,Yang Xueyou,Zhu Jigui,et al.Study on calibration technology of network laser scan space positioning system[J].Journal of Mechanical Engineering,2011,47(6):1-6.(in Chinese)
[11]Yang Linghui,Zhu Jigui,Zhang Guangjun,et al.Orientation method for workspace measurement positioning system based on scale bar[J].Journal of Tianjin University,2012,45(9):814-819.(in Chinese)
[12]Lao D B,Yang X Y,Zhu J G,et al.2011 Optimization of calibration method for scanning planar laser coordinate measurement system[J].Opt Precision Eng,2011,19(4):870-877.
[13]Maisano D A,Jamshidi J,Franceschini F,et al.Indoor GPS:system functionality and initial performance evaluation[J].International Journal of Manufacturing Research,2008,3(3):335-349.