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Roadway section displacement measuring system and measuring method

A technology of displacement measurement and measurement method, which is applied in the directions of measuring devices, section drawing, surveying and navigation, etc., and can solve problems such as large measurement errors and poor real-time performance

Pending Publication Date: 2020-12-04
CCTEG COAL MINING RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a roadway section displacement measurement system and measurement method, which are used to solve the defects of large measurement error and poor real-time performance caused by manual measurement in the prior art, and realize real-time measurement of roadway surface displacement, automatic calculation, accurate measurement, and small error

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  • Roadway section displacement measuring system and measuring method
  • Roadway section displacement measuring system and measuring method
  • Roadway section displacement measuring system and measuring method

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Embodiment 1

[0057] like figure 2 As shown, the embodiment of the present invention also discloses a measurement method of the roadway section displacement measurement system according to the above-mentioned embodiment. )

[0058] include:

[0059] Obtain the distance values ​​monitored by the first distance measuring device 201, the second distance measuring device 202 and the third distance measuring device 203,

[0060] The distance between the roof and floor of the roadway is obtained using the following formula:

[0061] H=H 1

[0062] The distance between the two sides of the roadway is calculated using the following formula:

[0063] L=L 1 *sinα+L 2 *sinθ

[0064] Among them, H represents the distance between the roof and the floor of the roadway;

[0065] h 1 represents the distance value monitored by the first distance measuring device 201;

[0066] L represents the distance between the two sides of the roadway;

[0067] L 1 represents the distance value monitored by...

Embodiment 2

[0076] like image 3 and Figure 4 , if the angle of the fixed bracket 300 changes due to deformation, this embodiment also includes:

[0077] Utilize the angle sensor 400 to monitor the deflection angle of the fixed bracket 300;

[0078] If it is detected that the deflection angle of the fixed bracket 300 is detected, the following formula is used to calculate:

[0079] H=H 1 '*cosβ*cosγ

[0080] L=(L 1 '+L 2 ')*sinα*cosβ*cosγ

[0081] in,

[0082] h 1 'represents the distance value monitored by the first distance measuring device 201 in this declination state;

[0083] cosβ represents the deflection angle generated by the fixed bracket 300 along the roadway width (ie, the X axis);

[0084] cosγ represents the deflection angle generated by the fixed bracket 300 along the length of the roadway (that is, the Y axis);

[0085] L 1 ' represents the distance value monitored by the second distance measuring device 202 in this declination state;

[0086] L 2 ' represen...

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Abstract

The embodiment of the invention provides a roadway section displacement measuring system and measuring method. The system comprises a first installation panel, three distance measuring devices, a fixed support and a calculation module, the fixed support and the calculation module are installed on the first installation panel, the first installation panel is fixed to a top plate of a roadway, and the three distance measuring devices are fixedly installed on the fixed support, so that the three distance measuring devices are located on the same plane and are parallel to the width direction of the roadway. The three distance measuring devices are fixed to the fixed support at specific angles, real-time measurement can be achieved through trigonometric function calculation, a calculation module automatically calculates the distance between the top plate and the bottom plate of the roadway and the distance between the two sides of the roadway, measurement is accurate, and errors are small.

Description

technical field [0001] The invention relates to the technical field of roadway monitoring, in particular to a roadway section displacement measurement system and a measurement method. Background technique [0002] In coal mine construction shaft and roadway engineering, in order to ensure the safety of the roadway, it is necessary to monitor the surface displacement of the roadway. The monitoring content includes important information such as the relative movement of the roof and the floor, the relative movement of the two sides, and the displacement of the side of the road. At present, the commonly used method is the "cross method" to measure the distance between the roof and the bottom plate and the distance between the two sides, and the relative change can be obtained by recording each measurement data and comparing them. [0003] At present, the "cross method" measurement mainly uses two laser rangefinders manually held in hand, and the cross is used for measurement. T...

Claims

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Application Information

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IPC IPC(8): G01B11/02G01C7/06
CPCG01B11/02G01C7/06
Inventor 张辉赵阳羲王正胜李帅蔡志华
Owner CCTEG COAL MINING RES INST