Curiosity's Fault Tolerant Wakeup and Shutdown Design | Zendy

Tracy Neilson | Zendy; J.A. Donaldson | Zendy

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Curiosity's Fault Tolerant Wakeup and Shutdown Design

Author(s) -

Tracy Neilson,

J.A. Donaldson

Publication year - 2014

Publication title -

procedia computer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.334

H-Index - 76

ISSN - 1877-0509

DOI - 10.1016/j.procs.2014.03.054

Subject(s) - computer science , fault tolerance , curiosity , software , embedded system , power (physics) , nuclear power , real time computing , computer hardware , operating system , psychology , social psychology , ecology , physics , quantum mechanics , biology

Curiosity spends roughly 70% of the day “sleeping”, in order to recharge the batteries from the nuclear power source. The system is designed to ensure the Rover goes to sleep and wakes back up to continue science and engineering activities. Additionally, the design is robust to off-nominal situations that may need additional actions performed by both hardware and software to ensure the Rover can communicate with the Earth. This paper describes nominal and off-nominal behavioral patterns, fault tolerance features designed into the Rover system (hardware and software), several off-nominal scenarios that are accommodated by the design, and some lessons learned from this development effort

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