An earth watching satellite constellation: how to manage a team of watching agents with limited communications

Authors:
Sylvain Damiani;Gérard Verfaillie;Marie-Claire Charmeau
Affiliations:
ONERA, France;ONERA, France;CNES, France
Venue:
Proceedings of the fourth international joint conference on Autonomous agents and multiagent systems
Year:
2005

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Abstract

In this paper, we present the problem of management of an Earth watching mission (detection, observation, and tracking of forest fires and volcanic eruptions) by means of a constellation of low-orbit satellites. We show that the mission reactivity requirements and the strictly limited communication means led us to a specific decision architecture. This architecture is based on two components: a tracking task sharing mechanism which is centralized on the ground and regularly activated, and a reactive decision/planning mechanism which is implemented on board each satellite, permanently active, and interruptible at any time. Simulations allow us to compare results obtained with more or less frequent coordinations by the ground. We conclude by showing that this specific application can be seen as an instance of the problem of watching any dynamic unforeseeable system/environment by a team of agents in a setting of limited inter-agent communications.