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Two-degree freedom measurement apparatus and method based on plane mirror imaging

A technology of measuring devices and plane mirrors, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of cumbersome calculation process, complex principles, high procurement and maintenance costs, and achieve low external interference, strong survivability, and simple structure Effect

Inactive Publication Date: 2016-06-22
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the principle of this method is complex, the calculation process is cumbersome, it is not convenient for simple and fast measurement, and the cost of procurement and maintenance is high, which is not conducive to the wide promotion and application in the fields of coal mining enterprises or building construction.

Method used

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  • Two-degree freedom measurement apparatus and method based on plane mirror imaging
  • Two-degree freedom measurement apparatus and method based on plane mirror imaging
  • Two-degree freedom measurement apparatus and method based on plane mirror imaging

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Now take the measurement of two degrees of freedom between hydraulic supports as an example, such as figure 1 and 2 As shown, the two-degree-of-freedom measuring device based on plane mirror imaging of the present embodiment is composed of a reference fixed plate 1, a reference plane mirror 2, a fastening connection bolt 3, a camera 5, a mirror frame 4, a horizontal marking rod 6-2, and a longitudinal marking rod 6-1. The fixed plate 8 to be tested, the plane mirror 7 to be tested and the computer 13 are composed.

[0040] Specifically: the reference fixed plate 1 of the present embodiment is a rectangular plate structure, which is used to install the reference flat mirror 2, that is, a rectangular reference flat mirror 2 is installed in the middle part of the reference fixed plate 1, as a measurement reference, on the reference flat mirror 2 The four corners are fastened with fastening bolts 3 and the reference fixed plate 1. Two mounting holes are provided in the mid...

Embodiment 2

[0056] see Figure 8 , the reference fixed plate 1 and the reference plane mirror 2 of the present embodiment, the fixed plate 8 to be measured and the plane mirror 7 to be measured are all fastened by the U-shaped fixing frame 9, that is, the fastening connecting bolt 3 is replaced by the U-shaped fixing frame 9, and the reference The fixed plate 1 is fastened to the reference plane mirror 2, and the fixed plate 8 to be tested is fastened to the plane mirror 7 to be tested. The fixing method of this embodiment is suitable for situations where the site is open and the installation space is large.

[0057] The U-shaped fixed mount 9 of the present embodiment comprises a first U-shaped fixed mount 9 and a second U-shaped fixed mount 9, the first U-shaped fixed mount 9 is used to fix the reference fixed plate 1 and the reference plane mirror 2, and the second U-shaped fixed mount 9 The frame 9 is used to fix the fixed plate 8 to be tested and the flat mirror 7 to be tested, see ...

Embodiment 3

[0062] see Figure 10 , the reference fixed plate 1 and the reference plane mirror 2 of the present embodiment, the fixed plate 8 to be measured and the plane mirror 7 to be measured are all fastened by the double-headed suction cup frame 10, that is, replace the fastening connecting bolt 3 with the double-headed suction cup frame 10, and the reference The fixed plate 1 is fastened to the reference plane mirror 2, and the fixed plate 8 to be tested is fastened to the plane mirror 7 to be tested. The fixing method of this embodiment does not need to drill holes and does not damage the hydraulic support.

[0063] There are 8 double-head suction cup holders 10 in this embodiment, which are divided into two groups, and are respectively distributed on the four corners of the reference plane mirror 2 and the plane mirror 7 to be measured. see Figure 11 and 12 , the double-headed suction cup frame 10 of the present embodiment is made of suction cup 10-1, spring 10-2, intermediate ...

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Abstract

The invention relates to a two-degree freedom measurement apparatus and method based on plane mirror imaging. The measurement apparatus comprises a reference fixed plate and a to-be-measured fixed plate; a reference plane mirror and a to-be-measured plane mirror are fixed on the reference fixed plate and the to-be-measured fixed plate respectively by fastening connecting elements; and reflection surfaces of the reference plane mirror and the to-be-measured plane mirror are opposite to each other. A mirror rack for installing a camera is arranged in front of the reflection surface of the reference plane mirror; a marking rod is arranged on the mirror rack and is parallel to the reference plane mirror; and the camera is connected with a computer by a data line. According to the invention, on the basis of a multi-times imaging principle of a plane mirror, an optical principle and a mechanical structure are combined; the optical path propagation is not affected by severe factors like the electromagnetism, temperature, humidity, and dust and the like; the external interference is low; the reliability and the viability are high. Moreover, the structure is simple; precise measurement of a yawing angle and a pitching angle between spatial planes is realized; and the apparatus and method play a role in guiding angle adjustment.

Description

technical field [0001] The invention belongs to the technical field of two-degree-of-freedom measurement, and in particular relates to a device and method for realizing two-degree-of-freedom measurement based on the imaging principle of a plane mirror. technical background [0002] For coal mine automatic fully mechanized mining, its main equipment includes: hydraulic support group, coal shearer and scraper conveyor, a fully mechanized mining face usually has hundreds of hydraulic supports used in groups, for coal shearer, scraper Conveyors, personnel and other equipment provide working space. At the same time, according to the trend of coal seam geology, each hydraulic support is not placed in parallel or vertically, but there is a certain dislocation in space. Due to the lack of coordinates in coal mines, the inclined hydraulic support is not easy to find. When the inclination is large, it is easy to fall down, which will cause the loss of personnel and property, and coal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/26
CPCG01B11/26
Inventor 张武
Owner XIAN UNIV OF SCI & TECH
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