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Adaptability Support in Time- and Space-Partitioned Aerospace Systems

Authors:
João Craveiro
José Rufino

Keywords: Adaptive systems; aerospace industry; logic partitioning; processor scheduling; real-time systems

Abstract:
The AIR (ARINC 653 in Space Real-Time Operating System) technology targets modern aerospace systems, where the concepts of time- and space-partitioning are applied. AIR features advanced timeliness control and adaptation mechanisms in its design, such as mode-based schedules, process deadline violation monitoring, and protection against event overload. The timing parameters of a space mission may vary throughout time, according to its mode/phase of operation, and the spacecraft may be exposed to unpredictable events and failures. In this paper we explore the adaptation potential of the advanced features included in AIR, analysing their code complexity (which influences software verification, validation and certification efforts) and computational complexity (which correlates to the temporal overhead impact on the system), and discussing how they can be applied to provide more adaptive, reconfigurable and self-adaptive AIR-based systems.

Pages: 152 to 157

Copyright: Copyright (c) IARIA, 2010

Publication date: November 21, 2010

Published in: conference

ISSN: 2308-4146

ISBN: 978-1-61208-109-0

Location: Lisbon, Portugal

Dates: from November 21, 2010 to November 26, 2010