All-station instrument accurate measurement height method

A technology of precise measurement and total station, applied in the direction of measuring devices, height/horizontal measurement, instruments, etc., can solve the problems of reduced measurement speed and accuracy, different readings of surveyors, and non-accurate measurement of elevation, so as to reduce the number of stations, Improve the measurement speed and the effect of flexible point layout

Inactive Publication Date: 2008-03-12
唐发志
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Problems solved by technology

[0004] ①Slow measurement speed
The sight distance of leveling measurement (the distance from the leveling instrument to the leveling rod) is small, there are many stations, and the measurement speed is slow. If the terrain is complex, the measurement speed will be slower
[0005] ②It is greatly affected by the terrain
Leveling is easy to measure in flat areas. If the slope of the terrain to be measured is large, the leveling instrument will be moved frequently, resulting in a decrease in measurement speed and accu

Method used

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[0049] Before the measurement, fix the leveling prism to the centering rod, adjust them to the same height, and fix the centering rod to ensure that its height remains unchanged during the measurement process.

[0050] The form of measurement is similar to that of leveling. The total station is leveled between the front and rear sight points, and the centering rod leveling ranging prism of equal height is set up on the front and rear sight points respectively.

[0051] The erection point of the total station should be in the middle of the foresight point and the backsight point as much as possible, so that the front and back sight distances are nearly equal. In this way, the measurement errors caused by spherical aberration, gas aberration and total station i-angle can be cancelled out.

[0052] First, align the center of the reticle of the total station telescope with the center of the backsight reflective prism, measure the distance, and record the height difference reading ...

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Abstract

The invention relates to a method for accurately measuring height with a total station, which is a new method for accurately measuring the height. The technical scheme provided in the invention is that the total station is arranged between a front viewpoint and a rear viewpoint and leveled, and a leveling distance measuring prism holder of two equally high centering rods is arranged on the front and rear viewpoints to implement measurement (see the figure). When implementing measurement, the crosshairs center of a total station telescope aims at the center of a rear viewpoint reflection prism to measure distance, record the height difference reading (VD) of the rear viewpoint, and read the height difference reading of the front viewpoint according to the method; the difference between the height difference readings of the front and rear viewpoints is the height difference of the front viewpoint relative to the rear viewpoint, and the sum between the height difference and the height of the rear viewpoint is the height of the front viewpoint. The invention can be widely used in common measurement and engineering measurement.

Description

technical field [0001] The invention relates to a new method for accurately measuring height with a total station. Background technique [0002] 1. The current method of accurately measuring elevation is leveling, and the equipment used for leveling is a level and a leveling rod. As shown in Figure 1, the principle of leveling is: use the horizontal line of sight provided by the level to observe the leveling staff vertically erected on the foresight point and the backsight point, and read the scale data, then the difference between the backsight reading and the foresight reading is the foresight point Relative to the height difference of the backsight point, the sum of the height difference of the backsight point and the height difference is the height of the foresight point. [0003] Leveling has three main disadvantages: [0004] ①The measurement speed is slow. The sight distance of leveling measurement (the distance from the leveling instrument to the leveling rod) is ...

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Application Information

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IPC IPC(8): G01C5/00
Inventor 唐发志
Owner 唐发志
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