Total station instrument combined orientation method based on optical fiber gyro

Abstract

The combined orientation method of the total station based on the fiber optic gyroscope is a combined orientation method of the total station based on the fiber optic gyroscope used in surveying and mapping. The instrument telescope (3) is fixedly connected, so that the fiber optic gyroscope (1) can rotate 180 degrees synchronously with the total station telescope (3) around the transverse axis (4) of the total station instrument, and the difference between the east and west directions of the gyro axis is 180 degrees. Position, each horizontal position is 2×2 position gyro data acquisition at two vertical positions with a difference of 180 degrees in the vertical plate of the total station; use the formula to calculate the true azimuth of the collimation axis of the total station and the convergence angle of the meridian of the station, namely The coordinate azimuth of the collimation axis of the total station can be further obtained to realize the orientation of the total station. The invention has a simple structure, does not need to perform installation error calibration, and can realize the orientation of the total station with only one control point through simple operations, and can be used for surveying and mapping work in towns, forests, mountainous areas and other areas where visibility is difficult.

Description

technical field [0001] The invention relates to an orientation method, in particular to a combination orientation method of a total station based on an optical fiber gyro used in surveying and mapping, and belongs to the technical field of mechanical surveying and mapping. Background technique [0002] In surveying and mapping work, when using the total station for point measurement or stakeout, it is necessary to first determine the coordinate azimuth of the total station's collimation axis, that is, to carry out the total station orientation. The current total station orientation method is to erect the total station on a known control point, look behind another known control point that is far apart, and use the inverse calculation of the coordinates of the two points to obtain the coordinate azimuth of the collimation axis of the total station . GPS positioning technology has the advantage of not needing inter-point line-of-sight during point measurement, and has become t...

AI Technical Summary

Problems solved by technology

In addition, the present invention utilizes the characteristics of small size, light weight, and firm and stable instrument of the fiber optic gyroscope, and successfully overcomes the shortcomings of the existing mechanical gyroscope, such as the weak impact resistance and high power consumption of the north-seeking system, and the operation is simple convenient

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