大空间坐标测量网络的现场实时标定方法
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摘要
大空间坐标测量网络主要由若干测量基站组成,为在测量现场完成网络的构建,并在测量过程中实时重新标定测量基站的空间坐标,通过对网络的测量原理及测量基站的结构进行分析,提出了模拟基站的标定模型。该模型将球形标靶作为模拟基站,并将模拟基站布置在特定位置上,可解决共面布局下测量网络的标定问题。为获取标定模型所需的距离信息,提出了主动扫描和寻心扫描两种瞄准测距方法。仿真标定实验结果表明,当测距精度为0.5 mm时,测量基站的坐标标定误差均值为2.1 mm。瞄准实验结果表明,两种瞄准方法所得测距值标准差分别为0.16 mm和0.34 mm,与测距精度相当。
Large scale coordinate measuring network mainly composed of a plurality of measurement stations. In order to build the network in the field of measurement,and re-calibrate the measurement stations' coordinates in measuring,the simulate-station calibration model is proposed following the analysis of the network's working principle and the measurement stations' structure. The model takes the spherical target as the simulate-station which is arranged in a specific position. It can solve the calibration problem of the measurement network under coplanar layout. In order to obtain the distance informations required by the calibration model,two kinds of aiming methods,active scanning and center searching scanning,were proposed. The simulated calibration experiment results show that when the ranging accuracy is 0. 5 mm,the mean coordinates calibration error of the measurement station was 2. 1 mm. The aiming experiment results show that the standard deviations of ranging values obtained by two kinds of aiming methods were 0. 16 mm and 0. 34 mm. And they were roughly equal to the ranging accuray.
Large scale coordinate measuring network mainly composed of a plurality of measurement stations. In order to build the network in the field of measurement,and re-calibrate the measurement stations' coordinates in measuring,the simulate-station calibration model is proposed following the analysis of the network's working principle and the measurement stations' structure. The model takes the spherical target as the simulate-station which is arranged in a specific position. It can solve the calibration problem of the measurement network under coplanar layout. In order to obtain the distance informations required by the calibration model,two kinds of aiming methods,active scanning and center searching scanning,were proposed. The simulated calibration experiment results show that when the ranging accuracy is 0. 5 mm,the mean coordinates calibration error of the measurement station was 2. 1 mm. The aiming experiment results show that the standard deviations of ranging values obtained by two kinds of aiming methods were 0. 16 mm and 0. 34 mm. And they were roughly equal to the ranging accuray.
引文
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[3]唐七星,余晓芬,王标.超大尺寸激光测距大型测控网络研制[J].计量学报,2016,37(4):360-365.
[4]吴斌,丁文,杨峰亭,等.非正交轴系全站仪坐标测量系统误差分析技术研究[J].计量学报,2017,38(6):661-666.
[5]张红英,余晓芬,王标.大空间坐标测量网络的精度自适应构建方法[J].电子测量与仪器学报,2016,30(11):1664-1670.
[6]叶声华,邾继贵,张滋黎,等.大空间坐标尺寸测量研究的现状与发展[J].计量学报,2008,29(z1):1-6.
[7]Galetto M,Mastrogiacomo L,Pralio B.MSc MS-II:an innovative IR-based indoor coordinate measuring system for large-scale metrology applications[J].International Journal of Advanced Manufacturing Technology,2011,152(1-4):291-302.
[8]张国雄,林永兵,李杏华,等.四路激光跟踪干涉三维坐标测量系统[J].光学学报,2003,23(9):1030-1036.
[9]Camboulives M,Lartigue C,Bourdet P,et al.Calibration of a 3D working space by multilateration[J].Precision Engineering,2016,44(1):163-170.
[10]林永兵,张国雄,李真,等.四路激光跟踪干涉三维坐标测量系统自标定与仿真[J].仪器仪表学报,2003,24(2):205-210.
[11]Zhang D F,Rolt S,Maropoulos P G.Modelling and optimization of novel laser multilateration schemes for high-precision applications[J].Meas.Sci.Technol.,2005,16(1):2541-2547.
[12]Santolaria J,Majarena A C,Samper D,et al.Articulated Arm Coordinate Measuring Machine Calibration by Laser Tracker Multilateration[J].The Scientific World Journal,2014,2014:681853-11.
[13]Wendt K,Franke M,Hrtig F.Measuring large 3D structures using four portable tracking laser interferometers[J].Measurement,2012,45(10):2339-2345.
[14]Takatsuji T,Koseki Y,Goto M,et al.Restriction on the arrangement of laser trackers in laser trilateration[J].Measurement Sience and Technology,1998,9(8):1357-1359.
[15]胡进忠.超大尺寸测量网络构建方法研究[D].合肥:合肥工业大学,2015.