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Agile satellite task planning method

A mission planning and satellite technology, applied in the field of satellite observation and control, can solve problems such as meta-task conflicts, satellites not working properly, and inconsistency between actual resources on the satellite and planning.

Inactive Publication Date: 2015-04-01
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the actual task execution process, there may be meta-task conflicts due to emergencies, etc. or the actual resources on the star are inconsistent with the plan
At this time, the satellite will not work normally

Method used

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Embodiment Construction

[0015] The agile satellite mission planning method according to an embodiment of the present invention comprises the following steps:

[0016] Step 1: Obtain the meta-task list of this planning cycle, the meta-tasks in the meta-task list are arranged in the order of the earliest start time, and set the forward-looking step; Step 2: Select a meta-task in the meta-task list in turn is the current meta-task; step 3: perform forward-looking judgment on the current meta-task with the forward-looking step, if the current meta-task conflicts with subsequent meta-tasks within the forward-looking step, when the priority of the current meta-task When the sequence is not lower than the subsequent meta-task, delete the subsequent meta-task, otherwise delete the current meta-task.

[0017] Through the method, conflicts can be quickly found and eliminated. So as to ensure the normal operation of the satellite and improve the reliability and life of the satellite platform.

[0018] Wherein...

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Abstract

The invention provides an agile satellite task planning method, which comprises the following steps of: 1) obtaining a meta-task list of a planning cycle, wherein meta-tasks in the meta-task list are sequentially arranged according to the earliness of starting time, and setting a prospective step length; 2) sequentially selecting one meta-task in the meta-task list as a current task; and 3) making a prospective judgment to the current task by the prospective step length, if the current task comes into conflict with follow-up meta-tasks in the prospective step length, when the priority of the current meta-task is not lower than the priority of the follow-up meta-tasks, deleting the follow-up meta-tasks, and otherwise, deleting the current meta-task. By adopting the method, conflicts can be rapidly found and eliminated; and by optimizing a satellite task list accordingly, the normal operation of a satellite is ensured and the reliability and the service life of a satellite platform are improved.

Description

technical field [0001] The invention relates to the field of satellite observation and control, in particular to an agile satellite task planning method. Background technique [0002] The mission of an Earth Observing Satellite (EOS) is usually to obtain image information of a designated target on the earth's surface according to the user's observation requirements. EOS usually implements observations according to a predetermined observation plan (meta-task list), which stipulates when, in what way, and what observation tasks the satellite will complete. The formulation of the observation plan is directly derived from the results of satellite observation scheduling. The traditional earth observation satellite push-broom imaging process completely depends on the forward movement of the satellite along the orbit, so the direction of the imaging strip can only be parallel to the sub-satellite line, and the width of the strip depends on the field of view of the spaceborne remot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/44
Inventor 姚锋陈英武孙凯贺仁杰李菊芳邢立宁白保存谢松王抒燕
Owner NAT UNIV OF DEFENSE TECH
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