Accuracy evaluation method of laser tracking attitude measurement system based on homogeneous coordinate transformation

Ningtong Liu; Zhi Xiong; Hang Xu; Zhihao Guo; Chuqi Wu; Wei Feng; Weihu Zhou; Dengfeng Dong

doi:10.1117/12.2616391

8 July 2022 Accuracy evaluation method of laser tracking attitude measurement system based on homogeneous coordinate transformation

Ningtong Liu, Zhi Xiong, Hang Xu, Zhihao Guo, Chuqi Wu, Wei Feng, Weihu Zhou, Dengfeng Dong

Author Affiliations +

Proceedings Volume 12282, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 122820E (2022) https://doi.org/10.1117/12.2616391
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

The Six-degree-of-freedom(6-DOF) measurement system based on laser tracking equipment provides a good solution for large-scale industrial measurement. However, there is no unified standard to evaluate the accuracy of attitude measurement system. At present, the accuracy evaluation method of attitude measurement mainly adopts the comparison method of standard parts, which is easily constrained by space dimensions. Aiming at this problems, a homogeneous coordinate transformation method based on spatial distance constraint is proposed to realize the on-site accuracy evaluation of attitude measurement. Firstly, a reasonable control field was arranged, and the distance constraints between the reference points and the measuring points were established. Secondly, the mathematical model which described the relationship between space distance and attitude was established by using homogeneous coordinate transformation matrix. Through the above evaluation method, the accuracy of attitude measurement can be evaluated by tracing the measurement results of attitude angle to the length measuring standards. The simulation results show that the accuracy of the evaluation model decreases linearly with the measurement distance of attitude measurement system. Assuming that the measurement accuracy of the distance constraint is 15μm+6μm/m, the size of the control field is 1.1m*6.4m*5.6m, and the attitude angle range is [-60°, 60°]. The accuracy of the evaluation model can be controlled within [0.34°,3.25°], when the working distance is 3 to 15 meters. This method provide an effective idea for the on-site evaluation of attitude measurement accuracy.

Citation Download Citation

Ningtong Liu, Zhi Xiong, Hang Xu, Zhihao Guo, Chuqi Wu, Wei Feng, Weihu Zhou, and Dengfeng Dong "Accuracy evaluation method of laser tracking attitude measurement system based on homogeneous coordinate transformation", Proc. SPIE 12282, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 122820E (8 July 2022); https://doi.org/10.1117/12.2616391

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Distance measurement

Cameras

Laser systems engineering

Prisms

Monte Carlo methods

3D modeling

Imaging systems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years