Automatic theodolite collimation method based on image recognition

A technology of image recognition and theodolite, which is applied in theodolite and other directions, can solve the problems of inability to achieve follow-up control, real-time control that does not reflect the real-time assembly requirements, etc., and achieve the effect of ensuring measurement stability and improving work efficiency

Inactive Publication Date: 2014-02-26
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

[0005] However, none of these existing control methods can achieve follow-up control, which is not enough to truly reflect the assembly requirements and perform real-time control

Method used

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  • Automatic theodolite collimation method based on image recognition
  • Automatic theodolite collimation method based on image recognition
  • Automatic theodolite collimation method based on image recognition

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specific Embodiment approach

[0031] Such as image 3 Shown, the equipment that the automatic theodolite collimation measurement method based on image recognition of the present invention uses comprises miniature measuring camera, and this miniature measuring camera is fixed on the eyepiece place of theodolite by fixed frock, between the miniature measuring camera and the fixed frock and between the fixed frock and the fixed frock. The eyepieces are fixed by screw clamping. The field of view of the electronic theodolite is observed through the measuring lens barrel of the electronic theodolite, and two kinds of calibrations are carried out successively during the measurement. The specific implementation methods are as follows:

[0032] (1) The conversion relationship (deflection coefficient and translation amount) between the image plane coordinate system of the image captured by the camera and the observation coordinate system of the theodolite eyepiece reticle is as follows:

[0033] Let p and q be the ...

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Abstract

The invention discloses an automatic theodolite collimation measurement method based on image recognition. A measurement device of the method comprises an electronic theodolite internally provided with a drive motor, a miniature measurement camera and a fixed fixture, wherein the automatic collimation measurement of the electronic theodolite is guided by the miniature measurement camera, a transformational relation between an image plane coordinate system and a theodolite eyepiece reticule observation coordinate system and a relation between an electronic theodolite deflection angle quantity and a miniature measurement camera pixel quantity when a focal length is in a collimation observation state are calibrated, and collimation return light and an electronic theodolite eyepiece reticule and a deviation relation are automatically extracted until collimation is achieved. According to the automatic theodolite collimation measurement method adopted by the invention, an image recording and analyzing method is used for replacing a conventional human eye observation method, so that the measurement stability in the case of long-term measurement is ensured, and the measurement work efficiency is increased.

Description

technical field [0001] The invention belongs to the field of industrial measurement, and in particular relates to a method for automatic alignment measurement of a theodolite. Background technique [0002] Accuracy measurement is an important guarantee for the reliable operation of satellites and on-board instruments. In order to ensure the normal flight and work of the satellite, it is necessary to measure the geometric accuracy of the satellite's structural shape and precision-required instruments and equipment during ground assembly, such as the attitude of the earth sensor, sun and star sensor, and inertial devices on the satellite. Instruments; thrust components such as 10N thrusters and 490N engines; sensing and communication equipment such as antennas and cameras. The equipment to be measured is generally characterized by a calibrated optical cube mirror on the equipment under test, and the coordinate axis of the coordinate system of the equipment under test is repre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C1/04
CPCG01C1/04
Inventor 刘浩淼王伟杨再华易旺民陶力阮国伟段晨旭陈启威任春珍郭洁瑛刘笑于兆吉孙继鹏
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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