NDLI: Space system formation planning and scheduling: a distributed approach

Content Provider	IEEE Xplore Digital Library
Author	Brambilla, A. Da Costa, A. Finzi, A.E. Lavagna, M.
Copyright Year	2005
Description	Author affiliation: Dip. Ingegneria Aerospaziale, Politecnico di Milano, Milan (Brambilla, A.; Da Costa, A.; Finzi, A.E.; Lavagna, M.)
Abstract	A multi-agent distributed architecture for autonomous planning and scheduling tasks of a space system formation is here proposed. Each physical element of the team is represented as an independent unit, with its own knowledge base, its own resources and its operational skills. High-level goals asking for single/ multiple units coordinated intervention can be dealt with. The pre/post-conditions consistent net definition to accomplish the distributed planning task is accomplished thanks to a partial ordered planning algorithm. A temporal net formalism is chosen to cope with the distributed scheduling problem: the intra/inter agents' temporal consistency is gained by applying an all shortest paths algorithm. No instantiation is asked for solving the distributed net, to preserve robustness of the scheduling according to possible external uncertainties and system failures. As no leader exists, local and shared resource consistency is acquired thanks to iterative negotiation processes among agents for the best compromise selection devoted to lower the conflicts occurrence. Two negotiation strategies are presented, to emphasize either the team welfare or the single agent welfare respectively. The communication protocol is based on the innovation of the communication oriented graph concept. The proposed architecture is here applied to a rovers scenario devoted to planetary exploration. Simulations show the validity of the proposed approach to assure multiple and robust final allocations
Starting Page	993
Ending Page	998
File Size	298146
Page Count	6
File Format	PDF
ISBN	0780390474
DOI	10.1109/AIM.2005.1511139
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Space missions Protocols Space stations Iterative algorithms Scheduling algorithm Uncertainty Technological innovation Satellite ground stations Control systems
Content Type	Text
Resource Type	Article

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