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Leveling-free polygon prism measuring device and leveling-free polygon prism measuring method for trigonometric elevation measurement

A triangular elevation and measuring device technology, applied in measuring devices, height/level measurement, measuring instruments, etc., can solve problems that cannot be widely used, cannot be completely eliminated, complicated and cumbersome operations, etc., and achieve the elimination of high measurement errors of prisms and improve Measurement accuracy and measurement efficiency, effects of improving measurement accuracy

Active Publication Date: 2020-12-04
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Journal literature "Research on High-precision EDM Triangular Height Measurement", Xu Guohui, No. 10, 2002, pages 22-24, records a precision altimetry method, but this method is relatively complicated and cumbersome to operate, takes a long time, and cannot Widely used in practical engineering
This method does not completely eliminate all of the above problems

Method used

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  • Leveling-free polygon prism measuring device and leveling-free polygon prism measuring method for trigonometric elevation measurement
  • Leveling-free polygon prism measuring device and leveling-free polygon prism measuring method for trigonometric elevation measurement
  • Leveling-free polygon prism measuring device and leveling-free polygon prism measuring method for trigonometric elevation measurement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] as attached figure 1 As shown, a non-leveling polygonal mirror measuring device for triangular elevation measurement includes a prism rod 100, at least two prisms 200 fixed on the prism rod 100, a bracket 300 connected to one end of the prism rod 100, and a prism rod 100 The other end is connected to the connection assembly 400 and the control point metal sign 500 .

[0054] When in use, one end of the prism rod 100 is inserted into the ground through the bracket 300, and the other end is aligned with the control point metal sign 500 through the connecting assembly 400, so as to realize the oblique fixation of the prism rod 100, and the prism rod 100 has good stability.

[0055] Further, the prism rod 100 is an integral structure, which cannot be retracted, stretched, or disassembled, so as to avoid errors in the measurement process and improve measurement accuracy.

[0056] as attached figure 2 As shown, the connection assembly 400 includes a bearing seat 410 , a co...

Embodiment 2

[0079] Based on above-mentioned embodiment 1, a kind of measuring method of the non-leveling polygonal mirror measuring device for triangular elevation survey, comprises the following steps:

[0080] 101. Burying points, nailing the selected two points into the control point metal sign 500 respectively, ensuring that the control point metal sign 500 is plumb nailed into the ground. The position of the buried point should consider whether there are a large number of occluders to avoid the prism being blocked, so that the connection component 400 is in a plumb state after being connected to the control point metal sign 500, so as to improve the measurement accuracy.

[0081] 102. Erection of instruments, if attached Figure 14 As shown, the measuring device is set up at the front sight point and the rear sight point of the total station 800 respectively, one end of the prism rod 100 is automatically adsorbed on the metal mark 500 of the control point through the connection assem...

Embodiment 3

[0086]Based on above-mentioned embodiment 1, a kind of measuring method of the non-leveling polygonal mirror measuring device for triangular elevation survey, comprises the following steps:

[0087] 101. Burying points, nailing the selected point into the control point metal sign 500, ensuring that the control point metal sign 500 is plumb nailed into the ground. The position of the buried point should consider whether there are a large number of occluders to avoid the prism being blocked, so that the connection component 400 is in a plumb state after being connected to the control point metal sign 500, so as to improve the measurement accuracy.

[0088] 102. To set up the instrument, first set up the total station 800 to the control point, and then set up the measuring device at the front or rear view point of the total station 800, as attached Figure 15 As shown, one end of the prism rod 100 is automatically adsorbed on the control point metal sign 500 through the connectio...

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Abstract

The invention relates to a leveling-free polygon prism measuring device and a leveling-free polygon prism measuring method for trigonometric elevation measurement. The measuring device comprises a prism bar, at least two prisms fixed on the prism bar, a bracket connected with one end of the prism bar, a connecting assembly connected with the other end of the prism bar, and a control point metal mark. During use, one end of the prism bar is inserted into the ground through the bracket, and the other end of the prism bar is aligned with the control point metal mark through the connecting assembly, so that the prism bar is obliquely fixed. The mathematical relationship between a to-be-measured point and a measurement prism point is obtained through the spatial geometrical relationship betweendifferent prism points and a measurement station point;in the measurement process, the prism does not need to be leveled, and the height of the prism does not need to be measured, so that prism highmeasurement errors do not exist;the lower end of the device is in rapid and close fit connection with the control point metal mark through magnetism, so that prism centering errors do not exist, and compared with a traditional measurement method, prism erection is higher in efficiency and higher in precision.

Description

technical field [0001] The invention relates to the technical field of engineering surveying devices, in particular to a leveling-free polygon mirror measuring device and a measuring method for triangular elevation measurement. Background technique [0002] With the rapid development of total stations, total stations can not only achieve high-precision traverse surveys, but also meet the requirements of the fourth-class level in triangular elevation surveys. In traditional surveying, when the accuracy of the total station is high enough, the proportion of prism measurement errors and centering errors will also increase. Although the traditional centering rod vertical prism can accurately measure the height of the prism rod, it needs to be centered and leveled, and its stability is poor, and it is greatly disturbed by the external environment, which may easily cause the upper end of the prism rod to deviate from the control point. [0003] Journal literature "Research on Acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C5/00G01C15/00
CPCG01C5/00G01C15/00Y02E10/50
Inventor 胡川李成洪范小猛张重阳
Owner CHONGQING JIAOTONG UNIVERSITY
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