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为了验证全站仪坐标测量精度的稳定性和可靠性,推导基于四元数的空间配准模型严密公式,并提出模型的精度评定方法,算法具有抗奇异性、表达简洁、运算快速和易于实现等优点,适用于评价坐标精度。以TDA5005全站仪为例,通过自由设站与多站测量相结合的方式,以及引入空间绝对长度基准,对其进行坐标测量精度的评估,包括内符合精度及外符合精度。从实验结果可以看出,该方法在评价全站仪的实测精度方面取得了良好效果。
In order to verify the stability and reliability of the total station coordinate measurement accuracy, the rigorous formula of the quaternion-based spatial registration model is deduced and the precision evaluation method of the model is proposed. The algorithm is anti-singular, simple, fast and easy to implement And other advantages, suitable for evaluation of coordinate accuracy. Take TDA5005 total station as an example, through the combination of free station setting and multi-station measurement, as well as the introduction of the absolute reference of space, the accuracy of coordinate measurement is evaluated, including internal compliance accuracy and external compliance accuracy. It can be seen from the experimental results that this method has achieved good results in the field of evaluation of the total station measurement accuracy.