Indoor Test Method of Attitude Measurement Accuracy of Photoelectric Theodolite

Liude, 田留德 Tian; Chaohui, 刘朝晖 Liu; Jianke, 赵建科 Zhao; Yanxuan, 段亚轩 Duan; Liang, 潘亮 Pan; Huaixue, 赵怀学 Zhao; Jiong, 段炯 Duan; Jiangbo, 龙江波 Long; Zhengfeng, 王争锋 Wang

doi:10.3788/aos201434.0812002

Cited by 3 publications

(1 citation statement)

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“…A high-speed camera was used to record the position of a projected light spot in real-time and to establish the posture calculation model of the moving target. The position accuracy was 5 mm, and the attitude angle accuracy was 1′ in a field of 14 m × 7 m. Tian et al [13] used a high precision theodolite to measure several feature points on the target, and fitted the target posture by using the least squares method. It was proven that the calibration accuracy could reach 0.05°.…”

Section: Introductionmentioning

confidence: 99%

A new large-scale posture measurement system based on a six-laser tracer multilateral method

Zheng

Miao

et al. 2020

Meas. Sci. Technol.

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To realize high-accuracy posture measurement in large scale, a posture measurement system is proposed in this study based on a six-laser multilateral method, mainly composed of six laser tracers and three reflectors-a different number of laser tracers tracks each mirror. But in this state, the system is positive definite, and it cannot achieve the system parameters by self-calibration. To solve this problem, a stepwise calibration method to obtain the system parameters by three-step calibration is presented. Simulations and experiments are carried out to verify the effectiveness of the proposed method. The experimental results show that the posture errors are distributed over [−13.6″, 6.6″] when the measurement range is [5 m, 7 m], which shows that the new measurement system has a high posture measurement accuracy in large scale.

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Section: Introductionmentioning

confidence: 99%