The authors describe an approach to guarded software upgrading through scenario-based descriptions. Their objectives are to avoid or minimize the unavailability and performance loss of spacecraft/science functions due to software upgrading activities and due to system failure caused by residual faults in an upgraded version. The approach emphasizes: 1) the utilization of nondedicated or inherent system resource redundancies such as an earlier software version and a processor that otherwise would be idle in the mission phase during which software upgrading activities are conducted, and 2) the low-cost efficient error containment and protection mechanisms based on adaptation/extension of the enabling technologies such as checkpointing and message logging.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    On-board guarded software upgrading for space missions


    Contributors:
    Thi, A.T. (author) / Tso, K.S. (author) / Alkalai, L. (author) / Chau, S.N. (author) / Sanders, W.H. (author)


    Publication date :

    1999-01-01


    Size :

    651294 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    On-Board Guarded Software Upgrading for Space Missions

    Tso, K. / Tai, A. / Sanders, W. et al. | NTRS | 1999


    Onboard guarded software upgrading: motivation and framework

    Tai, A.T. / Alkalai, L. / Chau, S.N. | IEEE | 2001


    Virtual guarded switch

    BARBER SARAH / TURCIOS FELIX B | European Patent Office | 2023

    Free access

    VIRTUAL GUARDED SWITCH

    BARBER SARAH / TURCIOS FELIX B | European Patent Office | 2021

    Free access

    Virtual Guarded Switch

    BARBER SARAH / TURCIOS FELIX B | European Patent Office | 2021

    Free access