Research on the technology for processing errors of photoelectric theodolite based on error design idea

Xiaosong Guo; Pengcheng Pu; Zhaofa Zhou; Kunming Wang

doi:10.1117/12.974271

15 October 2012 Research on the technology for processing errors of photoelectric theodolite based on error design idea

Xiaosong Guo, Pengcheng Pu, Zhaofa Zhou, Kunming Wang

Proceedings Volume 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 841727 (2012) https://doi.org/10.1117/12.974271
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

Abstract

The errors existing in photoelectric theodolite were studied according to the error design idea , that is，the correction of theodolite errors was achieved by analyzing the effect of errors actively instead of processing the data with error passively. Aiming at the shafting error, the relationship between different errors was analyzed by the error model based on coordinate transformation, and the real-time error compensation method based on the normal-reversed measuring method and levelness auto-detection was supposed. As to the eccentric error of dial, the idea of eccentric residual error was presented and its influence to measuring precision was studied, then the dynamic compensation model was build, so the influence of eccentric error of dial to measuring precision can be eliminated. For the centering deviation in the process of measuring angle, the compensation method based on the error model was supposed, in which the centering deviation was detected automatically based on computer vision. The above method based on error design idea reduced the influence to measuring result by software compensation method effectively, and improved the automation degree of azimuth angle measuring of theodolite, at the same time the precision was not depressed.

Citation Download Citation

Xiaosong Guo, Pengcheng Pu, Zhaofa Zhou, and Kunming Wang "Research on the technology for processing errors of photoelectric theodolite based on error design idea", Proc. SPIE 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 841727 (15 October 2012); https://doi.org/10.1117/12.974271

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KEYWORDS

Error analysis

Collimation

Image processing

Visual process modeling

Computer vision technology

Machine vision

Analytical research

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