Study on the three-station typical network deployments of workspace Measurement and Positioning System

Zhi Xiong; J. G. Zhu; B. Xue; Sh. H. Ye; Y. Xiong

doi:10.1117/12.2035624

10 October 2013 Study on the three-station typical network deployments of workspace Measurement and Positioning System

Zhi Xiong, J. G. Zhu, B. Xue, Sh. H. Ye, Y. Xiong

Proceedings Volume 8916, Sixth International Symposium on Precision Mechanical Measurements; 891629 (2013) https://doi.org/10.1117/12.2035624
Event: Sixth International Symposium on Precision Mechanical Measurements, 2013, Guiyang, China

Abstract

As a novel network coordinate measurement system based on multi-directional positioning, workspace Measurement and Positioning System (wMPS) has outstanding advantages of good parallelism, wide measurement range and high measurement accuracy, which makes it to be the research hotspots and important development direction in the field of large-scale measurement. Since station deployment has a significant impact on the measurement range and accuracy, and also restricts the use-cost, the optimization method of station deployment was researched in this paper. Firstly, positioning error model was established. Then focusing on the small network consisted of three stations, the typical deployments and error distribution characteristics were studied. Finally, through measuring the simulated fuselage using typical deployments at the industrial spot and comparing the results with Laser Tracker, some conclusions are obtained. The comparison results show that under existing prototype conditions, I_3 typical deployment of which three stations are distributed in a straight line has an average error of 0.30 mm and the maximum error is 0.50 mm in the range of 12 m. Meanwhile, C_3 typical deployment of which three stations are uniformly distributed in the half-circumference of an circle has an average error of 0.17 mm and the maximum error is 0.28 mm. Obviously, C_3 typical deployment has a higher control effect on precision than I_3 type. The research work provides effective theoretical support for global measurement network optimization in the future work.

Citation Download Citation

Zhi Xiong, J. G. Zhu, B. Xue, Sh. H. Ye, and Y. Xiong "Study on the three-station typical network deployments of workspace Measurement and Positioning System", Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 891629 (10 October 2013); https://doi.org/10.1117/12.2035624

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