中国空间科学技术(中英文)2025,Vol.45Issue(4):88-101,14.DOI:10.16708/j.cnki.1000-758X.2025.0061
面向异质卫星集群的事件触发分布式自主任务规划方法
Distributed autonomous scheduling based on event trigger for heterogeneous satellite swarm
摘要
Abstract
The application of earth observation satellite(EOS)is shifting from static to dynamic mission scenario,leading to an increasing demand for real-time observing capabilities.Consequently,an autonomous scheduling method is urgently needed to enable real-time mission responses and overcome the window constraints imposed by satellite telemetry command control(TT&C)systems.An event-triggered distributed autonomous scheduling method is proposed,which enables the autonomous closed-loop of target discovery,evaluation,and imaging.Firstly,an event-triggered distributed multi-satellite task negotiation framework is established utilizing the double layer contract network protocol(DLCNP).Secondly,a dynamic scheduling algorithm considering task priority based on the minimum conflict set is proposed to achieve real-time task assertion and conflict resolving.This algorithm provides an online solution for multi-satellite task negotiation.Finally,an iterative density cluster method is introduced to conduct clustering of high-value point targets.This method ensures the clustered point targets can be covered by a single imaging satellite,which effectively reduced observations required.The superiority of the event-triggered distributed autonomous scheduling method is verified by comparing its task completion rate with global optimization algorithm and communication load with blackboard inter-satellite structure.The pattern of task merging ratio is revealed by varying the size of the spread area and the number of targets.The proposed method can enhance the autonomy and emergency response capability of EOS swarm effectively.关键词
集群自主协商/双层招投标机制/动态任务规划/点目标聚类/规划算法Key words
swarm autonomous negotiation/double layer contract network protocol/dynamic scheduling/targets clustering/planning algorithm分类
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秦嘉豪,李宝卫,白雪,冉德超,徐明,张锐,胡志强..面向异质卫星集群的事件触发分布式自主任务规划方法[J].中国空间科学技术(中英文),2025,45(4):88-101,14.基金项目
2022年度上海卫星互联网重点实验室开放课题(课题7:模型化星座设计迭代优化算法研究) (课题7:模型化星座设计迭代优化算法研究)