基于水平传感器-光纤陀螺-全站仪组合的地籍测量新方法

Cadastral New Method for Measuring Based on the Level Sensor_ FOG_TS Combination

针对全站仪测量技术存在作业周期长、劳动强度大和受观测环境影响严重等不足,本文将光纤陀螺寻北技术、倾角测量技术应用于地籍测量中,降低了地籍测量对控制点及水平度的依赖,有效地提高了测量效率,推导了全站仪在倾斜状态下界址点测量和定向的计算公式。结合全站仪可水平旋转180°的特点,给出了光纤陀螺安装误差自补偿的操作步骤;对影响定向精度的主要误差源进行仿真分析,结果表明:光纤陀螺精度与水平传感器精度对定向精度影响较大,在光纤陀螺精度为0.05°/h情况下,当倾角测量误差为1'时,定向误差为26.51″。

Aiming at a long operating cycle, labor - intensive and observing environmental impact seriously defective of TS measure- ment techniques, the technology of FOG north finding and inclination measurement is used in cadastral survey, reducing reliance on control points and levelness, effectively improve the measurement efficiency. Deriving the calculation formula of TS for the boundary point measurement and orientation in the inclined state. Using the total station＇s characteristics that it can be horizontal and vertical ro- tation of 180°, operating steps of FOG installation error self - compensation are given. The main error sources which affect the preci- sion of orientation are simulated and analyzed. The results show that the precision of FOG and level sensor has great influence on the precision of directional precision. When the angle measurement error is 1′ and the precision of the FOG is 0.05°/h, the directional error is 26.51″.