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Star sensor system facilitating on-orbit replacement and on-orbit replacement method

A star sensor and sensor technology, applied in the field of star sensors, can solve the complex problems of star sensors and achieve the effect of precise access

Active Publication Date: 2018-11-16
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Replacing a star sensor in orbit is therefore a complex task

Method used

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  • Star sensor system facilitating on-orbit replacement and on-orbit replacement method
  • Star sensor system facilitating on-orbit replacement and on-orbit replacement method
  • Star sensor system facilitating on-orbit replacement and on-orbit replacement method

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Embodiment Construction

[0036] The present invention will be further elaborated below by illustrating a preferred specific embodiment in conjunction with the accompanying drawings.

[0037] like figure 1 and figure 2 As shown, a star sensor system that is convenient for on-orbit replacement includes: a star sensor unit 1 and a chute unit 2 that fixes the star sensor, and the chute unit 2 that fixes the star sensor and the movable mechanism of the star sensor unit 1 connections and electrical interface connections,

[0038] like figure 1 As shown, the star sensor unit 1 includes: an electrical interface 101, a hood 102, a grasping part 103 of a space manipulator, an optical and imaging unit 104, an electronic box 105, a bolt 106, and a chassis 107;

[0039] The electrical interface 101 is a cone structure, protruding from one side of the electronic box 105, on the cone there is a tapered raised trapezoidal key attached along the cone, the tapered raised trapezoidal key is a trapezoidal shape with ...

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Abstract

The invention relates to a star sensor system facilitating on-orbit replacement and an on-orbit replacement method. The method comprises ingenious structural design of a star sensor and a fixing device of the star sensor and an operating method for on-orbit replacement of the star sensor based on space manipulators. The fixing device of the star sensor and an electrical interface of the star sensor have tolerance property, even though the initial position has an error, autonomous and gradual adjustment can be performed through structural constraint and guidance automatically, and the star sensor is ensured to reach the preset position and accurate access of the electrical interface is realized. The space manipulator adopting a gripper as an end executor is utilized for grabbing the star sensor and the space manipulator adopting a sleeve as an end executor is utilized for screwing a self-locking bolt, and entering / withdrawing operation of the star sensor is completed under cooperation of the two manipulators. According to the method, the ingenious structure of the star sensor facilitating the on-orbit replacement and the fixing device of the star sensor is designed, and the on-orbitreplacement operation of the star sensor can be realized reliably by the aid of the space manipulators.

Description

technical field [0001] The invention relates to a star sensor, in particular to a star sensor system and an on-orbit replacement method which are convenient for on-orbit replacement. Background technique [0002] The star sensor is a detector that measures the attitude of the satellite itself by being sensitive to the light of stars. When the satellite is still in orbit and running normally, the star sensor may fail or need a performance upgrade. At this time, it needs to be replaced in orbit. Due to the small size and high precision of the star sensor, during the replacement process, the grasping position, fixing device, plug-in parts, replacement guide structure, etc. need to be carefully designed to ensure that the star sensor can be aligned efficiently and accurately and access effectively. Replacing a star sensor in orbit is therefore a complex task. Contents of the invention [0003] The purpose of the present invention is to provide a star sensor system and an on...

Claims

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Application Information

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IPC IPC(8): G01C21/24G01C25/00
CPCG01C21/24G01C25/00
Inventor 刘贵喜马兰郭康王妮张英
Owner XIDIAN UNIV
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