Free station setting method based on overall disc position measurement

A comprehensive and free technology, applied in the field of surveying and mapping, can solve problems such as the large difference between the real elevation and the actual elevation, and does not meet the requirements of free station establishment, so as to reduce the requirements of survey level, improve the stability of station establishment, and reduce the difference of station establishment. Effect

Inactive Publication Date: 2019-03-26
四川铁拓科技有限公司
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Problems solved by technology

At present, the self-contained program of the total station often uses the half-panel method to set up the station freely. If the vertical index of the total station ha

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  • Free station setting method based on overall disc position measurement
  • Free station setting method based on overall disc position measurement
  • Free station setting method based on overall disc position measurement

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] There are mainly two data processing methods for the free station setup of the total station. One is based on the on-board resection program of the total station for real-time on-site calculation. This method is relatively simple and easy to operate, but the calculation model is not rigorous and suitable for It is suitable for applications that do not require high station accuracy; one is to use the three-dimensional rigorous adjustment method to solve the calculation. This method is relatively rigorous in theory, but it requires post-event data processing. During the construction process, due to factors such as construction efficiency and operability requirements, the measured data often needs to be calculated on-site to guide the construction operation in real time. Therefore, the first method is mainly used for real-time calculation in actual o...

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Abstract

The invention provides a free station setting method based on overall disc position measurement, aiming at effectively improving the elevation station setting precision and meeting free station setting requirements so as to improve the station setting efficiency and the station setting stability. The free station setting method comprises the following steps: (1) selecting a proper position; erecting a total station and then leveling; (2) manually aiming at two back-sight points and then carrying out the overall disc position measurement on the back-sight points needing to be observed; (3) calculating a direction value, a distance, a vertical angle and a vertical disc index error; then carrying out three-dimensional compensating computation to obtain coordinates, precision and coordinate azimuth angles of station setting points; (4) carrying out constant weight iterative computation again according to a correction number until weight is not changed any more; outputting the coordinates,the precision and the coordinate azimuth angles of the station setting points, which are obtained by the three-dimensional compensating computation, of the station setting points; and (5) after the station setting is finished, carrying out vertical disc index error correction when a front-sight point is measured through a single disc position and then calculating a three-dimensional coordinate ofthe point.

Description

technical field [0001] The invention relates to surveying and mapping technology, in particular to a free station setting method based on overall position measurement. Background technique [0002] At present, the free station setting of the commonly used total station generally adopts the self-contained program of the total station to set up the station, and the total station requires that the free station setting can be realized under the leveling state. The half-panel total station measures more than two known points, and uses the resection method to calculate the coordinates of the set point. At the same time, according to the "Specifications for High-Speed ​​Railway Engineering Survey" (TB10601-2009), usually when the total station is free to set up a station, the over-limit points can be manually removed as needed, and then recalculated until all indicators meet the requirements. At present, the self-contained program of the total station often uses the half-panel met...

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Application Information

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IPC IPC(8): G01C1/02G01C15/00
CPCG01C1/02G01C15/00
Inventor 王国祥郑子天陈海军周世明赵龙杨锋汤曦刘志鹏梅熙
Owner 四川铁拓科技有限公司
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