Stay wire type three-dimensional space positioning device

A technology of three-dimensional space and positioning devices, applied in the direction of measuring devices, instruments, etc., can solve problems such as inconvenient adjustments, achieve the effects of convenient installation and layout, convenient use, and reduced torsional interference

Active Publication Date: 2021-10-29
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a cable-type three-dimensional space positioning device to solve the technical problem in the prior art that when the moving track of an object needs to be continuously measured, it is necessary to repeatedly disassemble and assemble the measurement frame where the cable encoder is located, resulting in inconvenient adjustment.

Method used

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  • Stay wire type three-dimensional space positioning device
  • Stay wire type three-dimensional space positioning device
  • Stay wire type three-dimensional space positioning device

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specific Embodiment 1

[0045] In the present invention, the pull-wire three-dimensional space positioning device is compared with the existing pull-wire space positioning structure. Four pull-wire sensors are fixedly installed on the target object to be measured to follow the movement of the target object. The sliders of each pull-wire sensor are fixedly connected. At the position of the known coordinate point, the moving track of the target object to be measured can be calculated according to the known coordinate point and combined with the corresponding mathematical principles. It is only necessary to fix the position, and it is convenient to change the spatial position, which also makes the whole device more integrated.

[0046] Specifically, the structure of the cable-type three-dimensional space positioning device 20 in this embodiment is as follows: Figure 1 to Figure 5 As shown, the cable-type three-dimensional space positioning device 20 includes a mounting base 1, four cable sensors 2, fou...

specific Embodiment 2

[0069] The main difference between it and Embodiment 1 is that in Embodiment 1, a cable extension hole is provided on one side of the box wall around the box structure to form a cable extension channel for the slider to pass through. In this embodiment, one side of the peripheral box wall can be directly set in an open structure to form a pulling wire extending channel for the pulling heads of all the pulling wires to pass through.

specific Embodiment 3

[0071] The main difference between it and Embodiment 1 lies in that in Embodiment 1, four wire sensors are arranged in the box structure, and the measurement principle of the four-station method is used for measurement. In this embodiment, three wire sensors can be arranged correspondingly in the box structure. Correspondingly, the measurement can be carried out by referring to the relevant principles of the three-station method in "Dynamic spatial position measurement method based on wire displacement sensors".

[0072] Of course, in other embodiments, more than five pull wire sensors can also be provided, and the position coordinates of the set center point can also be determined according to corresponding mathematical principles.

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Abstract

The invention relates to a stay wire type three-dimensional space positioning device, which comprises a mounting seat, stay wire sensors are arranged on the mounting seat, each stay wire sensor is provided with a stay wire, the free end of each stay wire is provided with a pull head, and the pull heads are used for being fixed at different known coordinate point positions; concentrated reversing pulleys corresponding to the stay wire sensors are respectively arranged on the mounting seat; a pull head of each stay wire is led in through a wire inlet side of the corresponding concentrated reversing pulley, bypasses the corresponding concentrated reversing pulley and then is led out from a corresponding wire outlet side; and a set center point is arranged on the mounting base, the centralized reversing pulleys are distributed around the set center point and are arranged close to the set center point, and the wire outlet side of each centralized reversing pulley is located on the side, facing the set center point, of the centralized reversing pulley. When the to-be-measured target object moves and the connecting position of the pull head needs to be changed, the pull head of the pull wire is directly detached and connected to the position of the known coordinate point which is determined again, only the pull head of the pull wire is operated during operation, the integration degree is high, and use is convenient.

Description

technical field [0001] The invention relates to a pull-wire type three-dimensional space positioning device. Background technique [0002] Three-dimensional space dynamic displacement measurement plays an extremely critical role in many fields such as aerospace, industrial production (underground space mining, etc.). [0003] The existing technology generally adopts laser tracker, infrared, high-speed camera, 3D image and other principles for spatial positioning, but a large amount of dust will be generated when excavating equipment such as cantilever roadheader is working, and the above positioning method is easily disturbed by dust. [0004] Recently, there is also a method based on the pull-wire displacement sensor to convert the dynamic position change in space into the relative displacement change of the three-dimensional coordinates. The rope displacement sensor is an exquisite structure of the linear displacement sensor. It fully combines the advantages of the angle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/00
CPCG01B21/00
Inventor 贾连辉王永胜孙森震李鹏宇鞠翔宇荆留杰臧家琪刘涛郑赢豪牛孔肖陈帅简鹏张娜贾正文王祥祥杨晨游宇嵩
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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