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Earth observation satellite task scheduling method and system

A technology for earth observation and task scheduling, 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: 2016-09-21
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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  • Earth observation satellite task scheduling method and system
  • Earth observation satellite task scheduling method and system
  • Earth observation satellite task scheduling method and system

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Embodiment Construction

[0062] 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.

[0063] Before explaining the details of the embodiments of the present invention, the satellite observation process will be described first.

[0064] 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 an earth observation satellite task scheduling method and system. Earth observation satellite tasks include an observation task and a downloading task. The method comprises the steps of inserting the observation task and / or the downloading task in the earth observation satellite tasks according to a preset constraint condition to obtain an initial earth observation satellite task sequence; and calculating the initial earth observation satellite task sequence through a preset first algorithm to obtain an earth observation satellite task sequence after scheduling. The observation task and / or downloading task is inserted in the earth observation satellite task according to the preset constraint condition to obtain the initial earth observation satellite task sequence, and the initial earth observation satellite task sequence is optimized through the first algorithm to obtain the earth observation satellite task sequence after scheduling, so that the satellite utilization efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of satellite observation, in particular to a method and system for scheduling tasks of earth observation satellites. 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 sa...

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Application Information

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IPC IPC(8): G06F9/48G06N3/12
CPCG06F9/4881G06F2209/485G06N3/126
Inventor 胡笑旋章密靳鹏夏维罗贺马华伟
Owner HEFEI UNIV OF TECH
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