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Earth-moon relay satellite task scheduling method considering detector storage limitation

A relay satellite and task scheduling technology, which is applied in the field of satellite communication, can solve problems such as not considering the storage limit of user detectors, and not applicable to the data transmission task scheduling of earth-moon relay satellites

Pending Publication Date: 2020-05-08
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current relay satellite task scheduling technology is not suitable for the problem of earth-moon relay satellite data transmission task scheduling, and does not consider the storage limit of user detectors

Method used

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  • Earth-moon relay satellite task scheduling method considering detector storage limitation
  • Earth-moon relay satellite task scheduling method considering detector storage limitation
  • Earth-moon relay satellite task scheduling method considering detector storage limitation

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Embodiment Construction

[0049] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0050] In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

[0051]The invention provides a method for task scheduling of an earth-moon relay satellite.

[0052] Such as figure 1 As shown, it is a ...

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Abstract

The invention discloses an earth-moon relay satellite task scheduling method considering detector storage limitation, which relates to the field of satellite communication and comprises the followingsteps of: inputting all task information, user detector information and available antenna resource information of a relay satellite; generating a task scheduling sequence; scheduling each task by adopting a task scheduling algorithm; judging whether the task meets the storage constraint of the user or not; finding an earliest available time window; and repeating the steps until all tasks are scheduled to obtain a final scheduling scheme. The constraint on the residual storage capacity of the user is increased in earth-moon relay satellite task scheduling, and the problem of data and image losspossibly caused by neglecting the constraint on the storage capacity is avoided.

Description

technical field [0001] The invention relates to the field of satellite communication, in particular to a task scheduling method for earth-moon relay satellites in consideration of detector storage limitations. Background technique [0002] A new round of lunar exploration around the world is kicking off. The scope of lunar exploration is gradually expanding from the front of the moon to the back and poles, and lunar exploration activities are becoming more and more complicated. Since the rotation period and revolution period of the moon are the same, the ground station on the earth cannot communicate directly with the back of the moon, but the relay communication method of the earth-moon relay satellite can solve this problem and meet the full-time and full-space coverage of the moon. Communication requirements. [0003] In the next decade or so, as humans continue to explore the moon, the number of lunar probes launched by various countries will also continue to increase. ...

Claims

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Application Information

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IPC IPC(8): G06F9/48
CPCG06F9/4843
Inventor 王璐琦刘冰怡郭薇
Owner SHANGHAI JIAO TONG UNIV
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