Research on an optoelectronic measurement system of dynamic envelope measurement for China Railway high-speed train

Ziyue Zhao; Xiaochuan Gan; Zhi Zou; Liqun Ma

doi:10.1117/12.2304291

12 January 2018 Research on an optoelectronic measurement system of dynamic envelope measurement for China Railway high-speed train

Ziyue Zhao, Xiaochuan Gan, Zhi Zou, Liqun Ma

Author Affiliations +

Proceedings Volume 10621, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 1062126 (2018) https://doi.org/10.1117/12.2304291
Event: International Conference on Optical Instruments and Technology 2017, 2017, Beijing, China

Abstract

The dynamic envelope measurement plays very important role in the external dimension design for high-speed train. Recently there is no digital measurement system to solve this problem. This paper develops an optoelectronic measurement system by using monocular digital camera, and presents the research of measurement theory, visual target design, calibration algorithm design, software programming and so on. This system consists of several CMOS digital cameras, several luminous targets for measuring, a scale bar, data processing software and a terminal computer. The system has such advantages as large measurement scale, high degree of automation, strong anti-interference ability, noise rejection and real-time measurement. In this paper, we resolve the key technology such as the transformation, storage and calculation of multiple cameras’ high resolution digital image. The experimental data show that the repeatability of the system is within 0.02mm and the distance error of the system is within 0.12mm in the whole workspace. This experiment has verified the rationality of the system scheme, the correctness, the precision and effectiveness of the relevant methods.

Citation Download Citation

Ziyue Zhao, Xiaochuan Gan, Zhi Zou, and Liqun Ma "Research on an optoelectronic measurement system of dynamic envelope measurement for China Railway high-speed train", Proc. SPIE 10621, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 1062126 (12 January 2018); https://doi.org/10.1117/12.2304291

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