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Multi-satellite task scheduling method and system

A task and task sequence technology, applied in the field of satellite observation, can solve problems such as uncertainty, and achieve the effect of improving the efficiency of use

Active Publication Date: 2017-07-14
HEFEI UNIV OF TECH
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Problems solved by technology

The biggest difference between these two tasks is that the observation task is generated according to user needs and has been determined before scheduling, while the downlink task is dynamically generated according to the scheduling situation and the on-board storage capacity of the satellite, which cannot be determined before scheduling

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  • Multi-satellite task scheduling method and system
  • Multi-satellite task scheduling method and system

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] Before explaining the details of the embodiments of the present invention, the satellite observation process will be described first.

[0044] The satellite images the ground target through the remote sensor in the orbit, and each imaging action will form an imaging strip with a certain width on the ground, such as figure 1 in the area. A ground target only needs to be imaged once to complete the observation. The data obtained by each imaging will be ...

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Abstract

The invention provides a multi-satellite task scheduling method and a multi-satellite task scheduling system. The method comprises the steps of acquiring the initial preset number of task sequences, and selecting the task sequence with the maximum adaptability degree from the initial preset number of task sequences as an initial target task sequence; carrying out an operation according to the initial target task sequence through a quantum genetic algorithm to obtain the new preset number of task sequences; and selecting a new target task sequence from the new preset number of task sequences, and carrying out an iterative operation according to the new target task sequence through the quantum genetic algorithm to obtain a scheduled task sequence. Therefore, the use efficiency of satellites is improved.

Description

technical field [0001] The invention relates to the technical field of satellite observation, in particular to a multi-satellite task scheduling method and system. Background technique [0002] Earth observation satellites are an important image acquisition platform. They can observe ground targets through remote sensors in orbit, and download the obtained image data to the ground station to form image products through post-processing. At present, earth observation satellites are often launched in series, such as China's Gaofen series, which plans to launch 7 civilian satellites, and has launched 2 so far. These satellites can form a relatively complete observation system to serve the information needs of specific fields. [0003] The mission scheduling of earth observation satellites refers to the scheduling of multiple earth observation missions (referred to as observation missions) according to a certain optimization goal to determine the specific satellites and specific...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/48G06N3/08
CPCG06F9/4881G06N3/086
Inventor 胡笑旋张烨靳鹏夏维罗贺马华伟朱外明
Owner HEFEI UNIV OF TECH
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