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Single-satellite autonomous task scheduling method and system for non-time-sensitive moving target tracking

A technology for autonomous tasks and moving targets, applied in neural learning methods, constraint-based CAD, biological neural network models, etc., can solve the problem of poor solution quality, long time required, and inability to realize dynamic uncertainties of moving targets and respond in a timely manner and other problems to achieve the effect of improving the solution efficiency

Pending Publication Date: 2022-07-15
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0004] The existing technology adopts the heuristic algorithm to solve the problem with poor quality, and the meta-heuristic algorithm takes a long time to solve, and cannot realize the timely response to the dynamic uncertainty characteristics of the moving target
At the same time, the operation and control constraints involved in the satellite are complex, and it is necessary to accurately avoid constraint conflicts

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  • Single-satellite autonomous task scheduling method and system for non-time-sensitive moving target tracking
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  • Single-satellite autonomous task scheduling method and system for non-time-sensitive moving target tracking

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[0091] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0092] The single-satellite autonomous task scheduling problem for non-time-sensitive moving target tracking belongs to a class of combinatorial optimization problems under complex constraints. Maximize the total revenue of the satellite to the observation mission. The tasks are derived from the tasks assigned to a single satellite by a multi-satellite collaborative task, and include multi-attribute information such as task priority, imaging duration, visible time window, and attitude. In order to qu...

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Abstract

The invention provides a single-satellite autonomous task scheduling method and system for non-time-sensitive moving target tracking. The method comprises the following steps: collecting a non-time-sensitive moving target task set; a single-satellite autonomous task scheduling optimization model is constructed; and solving the single-satellite autonomous task scheduling optimization model to obtain a single-satellite autonomous task scheduling scheme, and outputting the single-satellite autonomous task scheduling scheme. A task is regarded as a node, a single-satellite autonomous task scheduling model is converted into a time attitude adjacency graph in various transient states, a graph attention network model is used for predicting a next task node, and a scheduling solution sequence is obtained through step-by-step prediction. According to the method for solving by using the graph attention network model, the solving efficiency is improved, so that a scheduling scheme can be quickly given.

Description

technical field [0001] The invention belongs to the field of satellite task planning, in particular to a single-satellite autonomous task scheduling method and system for tracking non-time-sensitive moving targets. Background technique [0002] Non-time-sensitive moving targets are a type of moving targets with low-speed motion characteristics. Typical non-time-sensitive targets are surface ships and ground vehicles. Single-satellite autonomous task scheduling problem (SSATSP) for non-time-sensitive moving target tracking is a kind of tracking problem for dynamic targets whose target state is constantly changing. In order to respond to the uncertainty of the target, combined with the on-board image recognition capability, it is necessary to quickly and autonomously schedule on-board and generate a scheduling plan. [0003] The new generation of agile satellites has flexible three-axis attitude maneuverability, which expands the observation window of the target; the traditio...

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Application Information

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IPC IPC(8): G06F30/27G06N3/04G06N3/08G06F111/04
CPCG06F30/27G06N3/04G06N3/088G06F2111/04
Inventor 杨文沅左亚辉刘仁杰刘晓路何磊淳洁杜永浩吕济民陈盈果姚锋陈英武
Owner NAT UNIV OF DEFENSE TECH