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Multi-satellite earth-observation task scheduling and planning method and device

A technology for earth observation and mission planning, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to optimize satellite system resource allocation

Inactive Publication Date: 2016-07-20
CHINA UNIV OF GEOSCIENCES (WUHAN) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a scheduling method and device for a multi-satellite earth observation task, which is used to solve the problem that the resources of the satellite system cannot be optimized during the multi-satellite earth observation in the prior art Configuration, technical issues of fully and rationally utilizing satellite system resources

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  • Multi-satellite earth-observation task scheduling and planning method and device
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  • Multi-satellite earth-observation task scheduling and planning method and device

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Embodiment 1

[0064] This embodiment provides a method for scheduling and planning multi-satellite earth observation missions, such as figure 1 As shown, the method includes the following steps:

[0065] Step 110, reading observation task and satellite resource data.

[0066] In this step, the observation task and satellite resource data are read from the satellite resource database, and the satellite resource data includes: satellite information, payload information, ground target information, and the like. The observation task is

[0067] Wherein, the satellite information includes: the satellite's orbital conditions, accuracy, and roll capability. The payload information refers to the equipment and load capacity carried by the satellite to obtain image data, such as: camera (hyperspectral, multispectral or panchromatic), synthetic aperture radar and various sensors (frequency band and wave band). The ground target refers to a ground area that needs to be observed, including: point tar...

Embodiment 2

[0175] Corresponding to Embodiment 1, this embodiment also provides a scheduling device for multi-satellite earth observation tasks, such as Figure 4 As shown, the device includes: a reading module 41, a division module 42, a planning module 43 and a decoding module 44; wherein,

[0176] The reading module 41 is used to read satellite resource data from the satellite resource database, and the satellite resource data includes: satellite information, payload information, ground target information, and the like. Wherein, the satellite information includes: the satellite's orbital conditions, accuracy, and roll capability. The payload information refers to the equipment and load capacity carried by the satellite to obtain image data, such as: camera (hyperspectral, multispectral or panchromatic), synthetic aperture radar and various sensors (frequency band and wave band). The ground target refers to a ground area that needs to be observed, including: point targets, area targets...

Embodiment 3

[0284] In practical applications, users can use evolutionary algorithms to plan satellite resource data through the man-machine interface of the multi-satellite earth observation mission system.

[0285] Specifically, such as Figure 5 Said, the system includes: application layer, algorithm layer, model layer and data layer; wherein, the data layer provides the physical data necessary for multi-satellite mission planning based on evolutionary calculation. Multi-satellite mission planning requires a large amount of data input and output. In order to improve computing efficiency, it is necessary to provide a data management method with certain independence. To this end, a database related to multi-satellite and multi-mission planning is constructed, which mainly includes observation task database, payload database, and satellite database, and also includes some auxiliary data.

[0286] The model layer implements the modeling process required for multi-satellite mission planning...

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Abstract

The invention provides a multi-satellite earth-observation task scheduling and planning method and device.The method comprises the steps that an observation task and satellite resource data are read; the observation task is partitioned according to the satellite resource data, and an observation meta-task set is obtained; task planning is conducted on the observation meta-task set through an evolutionary algorithm, and a planning result is obtained; the planning result is decoded, and an observation sequence is obtained; in this way, when multiple satellites observe the earth, the characteristics such as intelligence and concurrency of the evolutionary algorithm are fully utilized, and the task scheduling problem of multiple observation satellites which need to work cooperatively is solved; a dynamic task planning method based on the evolutionary algorithm is utilized, a reasonable load scheduling scheme is made for an in-orbit operation satellite group, resource allocation of a satellite system is optimized, and satellite system resources are utilized fully and reasonably.

Description

technical field [0001] The invention belongs to the technical field of satellite mission planning, and in particular relates to a dispatching and planning method and device for multi-satellite earth observation missions. Background technique [0002] Earth observation takes the earth as the research object, relies on space platforms such as satellites, space shuttles, and near-space vehicles, and uses various detection methods such as visible light, infrared hyperspectrum, and microwave to obtain information, process it, and form products. [0003] At the beginning of the development of earth observation satellites, due to the limited satellite load capacity and relatively few user tasks, the observation time and observation angle of the tasks were relatively fixed, the satellite management and control were relatively simple, and the problem of mission planning was not prominent. However, with the development of earth observation satellite technology and the increase in dema...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 董理君李晖张学庆马万权霍国清吴杰赵曼翟淑宝江君君袁文兵曹玲
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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