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Visual precision positioning method for space free flight simulator

A flight simulator and precise positioning technology, applied in the field of visual measurement, can solve the problems of high requirements on hardware equipment, affecting operation speed, low positioning accuracy, etc., to achieve the effect of improving detection efficiency, improving measurement speed, and reducing requirements

Active Publication Date: 2016-12-07
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of low positioning accuracy in the prior art, high requirements on hardware equipment, and large calculation amount, which affects the calculation speed, the present invention proposes a visual precision positioning method for a space free flight simulator

Method used

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  • Visual precision positioning method for space free flight simulator
  • Visual precision positioning method for space free flight simulator
  • Visual precision positioning method for space free flight simulator

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Experimental program
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Embodiment Construction

[0027] A method for visual precision positioning of a space free flight simulator, the method comprising the following steps:

[0028] Such as figure 1 As shown, in step 1, the space free flight simulator 2 is set on the working platform 1, the camera 4 is fixed directly above the working platform 1, and the camera 4 is connected to the host computer 5.

[0029] Step 2, designing the cooperative target 3 applied to the positioning of the space free flight simulator, and placing the cooperative target 3 in a proper position of the space free flight simulator 2.

[0030] Such as figure 2 As shown, design cooperation target 3: cooperation target 3 is a circular outline, the background is black, and three white solid circular targets with different radii are distributed on it. The black background is used to unify with the black marble working platform, providing Shape objects with greater contrast. Specifically, cooperation target 3 is a black disc with a radius of 15cm, on w...

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Abstract

The invention discloses a visual precision positioning method for aspace free flight simulator, and belongs to the technical field of vision measurement. In order to solve the problems of low positioning accuracy, high requirement for hardware equipment, large calculation amount and influence on the operation speed, the space free flight simulator is arranged on a working platform, a camera is fixed right above the working platform, and the camera is connected with a host computer; a cooperation target is designed and is placed at an appropriate position of the space free flight simulator; the camera is controlled by the host computer to acquire images of the space free flight simulator installed with the cooperation target, the digital image processing technology is used for extracting the center of a circular object for the cooperation target, and coordinates of the center in an image coordinate system is obtained; and the attained pose of the space free flight simulator is determined through the obtained coordinates of the center in the image coordinate system in accordance with the known installation position of the cooperation target with respect to the space free flight simulator by combining the correspondence of different coordinate systems.

Description

technical field [0001] The invention relates to a visual precise positioning method of a space free flight simulator, which belongs to the technical field of visual measurement. Background technique [0002] The space free flight simulator is a unique device for ground testing of satellites and other spacecraft. It can approximate the microgravity and zero-friction space activities of spacecraft in the outer space environment. The difficulty of accurately modeling physical components is of great significance for verifying spacecraft control methods and actual performance. [0003] Quick and accurate positioning of the space free flight simulator is an important prerequisite for adjusting its orbit and attitude. However, due to the particularity of the test, the space free flight simulator cannot have any physical connection with the ground equipment, so its position and attitude information All need to be obtained through contactless means. [0004] Traditional non-contact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00
CPCG01B11/002
Inventor 顾营迎刘宇航高瞻宇徐振邦吴清文刘宏伟
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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