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A monitoring device for Beidou positioning surface displacement

A monitoring device and Beidou positioning technology, which is applied in the direction of measuring devices, electrical devices, instruments, etc., can solve the problems of high level requirements for monitoring antennas, difficult installation of monitoring brackets, poor antenna directivity, etc., and achieve low cost and wide range , the effect of improving the accuracy

Active Publication Date: 2020-11-10
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art that the Beidou slope monitoring antenna has high level requirements, the installation of the monitoring bracket is difficult, and the antenna directivity is poor, and a monitoring device for Beidou positioning surface displacement is provided. The technical scheme is as follows:

Method used

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  • A monitoring device for Beidou positioning surface displacement
  • A monitoring device for Beidou positioning surface displacement
  • A monitoring device for Beidou positioning surface displacement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as Figure 7 As shown, in the specific monitoring process, the actual displacement calculation process of the positioning monitoring point is as follows:

[0053] When there are three liquid storage pipes, the actual displacement calculation formula of the positioning monitoring point is:

[0054]

[0055] x 实 =X 测 -ΔX=X 测 -Hsinθ

[0056] Among them: θ represents the amount of change in the rotation angle between the monitoring bracket and the vertical direction; Δh 1 、Δh 2 、Δh 3 Respectively represent the maximum value, the second maximum value and the minimum value of the water column height change, where the water column height change is positive with the rise, in mm; D represents the diameter of the circumscribed circle of the neutral axis of the water column, in mm; X 实 Indicates the actual value of surface displacement, in mm; X 测 Indicates the measured value of the antenna displacement, in mm; ΔX indicates the relative displacement between the ant...

Embodiment 2

[0072] When there are four liquid storage pipes, the absolute value of the change in the liquid height of the two liquid storage pipes located on the diagonal line is the same within a period of time; through the change of the liquid height within a certain period of time, the geometric relationship within the period of time can be calculated. , the inclination angle of the supporting column of the monitoring device, and then calculate the actual displacement of the positioning point within this time period. The actual displacement calculation formula of the positioning monitoring point is:

[0073]

[0074] x 实 =X 测 -ΔX=X 测 -Hsinθ

[0075] Among them: θ represents the amount of change in the rotation angle between the monitoring bracket and the vertical direction; Δh 1 、Δh 2 Respectively represent the maximum and minimum values ​​of the absolute value of the water column height change, where the absolute value of the diagonal water column height change is the same, the...

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Abstract

The invention discloses a monitoring device for Beidou positioning surface displacement. The device includes a bottom plate, an antenna hinged on the bottom plate and a liquid balance device fixed onthe bottom plate, wherein the liquid balance device includes at least two liquid storage pipes and return springs arranged in one-to-one correspondence with the liquid storage pipes, the bottoms of the liquid storage pipes are communicated with each other, the liquid storage pipes are filled with the liquid and are provided with floating plugs which can float on the liquid surface, one end of eachreturn spring is connected with the antenna, the other end keeps synchronous movement with the floating plug in the corresponding liquid storage pipe, when the bottom plate is tilted, the floating plug follows to float along with the liquid surface, the return spring keeping synchronous movement with the corresponding floating plug at the other end drives the antenna to rotate so that the antennais always horizontal, the monitoring device further includes a liquid level measuring mechanism capable of measuring the liquid level change in each liquid storage pipe, and an inclination angle of the bottom plate and actual displacement of a positioning monitoring point are calculated through the liquid level change in each liquid storage pipe. The monitoring device is advantaged in that the structure is easy for dismounting and mounting, cost is low, the monitoring device can be used outdoors in situations where power is difficult, and the monitoring device can realize cyclic use in the large scope and improves monitoring accuracy.

Description

technical field [0001] The invention relates to a monitoring device for Beidou positioning surface displacement, which belongs to the technical field of civil engineering slope monitoring. Background technique [0002] In recent years, my country's economy and transportation projects have developed rapidly, and the transportation network has continued to extend to remote mountainous areas. However, the geological conditions in remote mountainous areas are complex, the environment is dangerous, and they are easily affected by road engineering, causing geological disasters such as landslides, causing huge economic losses, and threatening the safety of people's lives and property. Therefore, real-time monitoring and early warning of more dangerous slopes is an important measure for disaster prevention and mitigation. Due to the steep terrain, harsh environment, and inaccessible people on mountain road slopes, traditional monitoring methods, such as patrol monitoring, station m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/02
Inventor 张飞何乃福高玉峰陈硕戴光宇
Owner HOHAI UNIV
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