elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

ScOSA system software: the reliable and scalable middleware for a heterogeneous and distributed on-board computer architecture

Lund, Andreas und Haj Hammadeh, Zain Alabedin und Kenny, Patrick und Vishav, Vishav und Kovalov, Andrii und Watolla, Hannes und Gerndt, Andreas und Lüdtke, Daniel (2021) ScOSA system software: the reliable and scalable middleware for a heterogeneous and distributed on-board computer architecture. CEAS Space Journal. Springer. doi: 10.1007/s12567-021-00371-7. ISSN 1868-2502.

[img] PDF - Verlagsversion (veröffentlichte Fassung)
1MB

Offizielle URL: https://rdcu.be/cmcIl

Kurzfassung

Designing on-board computers (OBC) for future space missions is determined by the trade-off between reliability and performance. Space applications with higher computational demands are not supported by currently available, state-of-the-art, space-qualified computing hardware, since their requirements exceed the capabilities of these components. Such space applications include Earth observation with high-resolution cameras, on-orbit real-time servicing, as well as autonomous spacecraft and rover missions on distant celestial bodies. An alternative to state-of-the-art space-qualified computing hardware is the use of commercial-off-the-shelf (COTS) components for the OBC. Not only are these components cheap and widely available, but they also achieve high performance. Unfortunately, they are also significantly more vulnerable to errors induced by radiation than space-qualified components. The ScOSA (Scalable On-board Computing for Space Avionics) Flight Experiment project aims to develop an OBC architecture which avoids this trade-off by combining space-qualified radiation-hardened components (the reliable computing nodes, RCNs) together with COTS components (the high performance nodes, HPNs) into a single distributed system. To abstract this heterogeneous architecture for the application developers, we are developing a middleware for the aforementioned OBC architecture. Besides providing an monolithic abstraction of the distributed system, the middleware shall also enhance the architecture by providing additional reliability and fault tolerance. In this paper, we present the individual components comprising the middleware, alongside the features the middleware offers. Since the ScOSA Flight Experiment project is a successor of the OBC-NG and the ScOSA projects, its middleware is also a further development of the existing middleware. Therefore, we will present and discuss our contributions and plans for enhancement of the middleware in the course of the current project. Finally, we will present first results for the scalability of the middleware, which we obtained by conducting software-in-the-loop experiments of different sized scenarios.

elib-URL des Eintrags:https://elib.dlr.de/142681/
Dokumentart:Zeitschriftenbeitrag
Titel:ScOSA system software: the reliable and scalable middleware for a heterogeneous and distributed on-board computer architecture
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Lund, AndreasAndreas.Lund (at) dlr.dehttps://orcid.org/0000-0002-3828-2088NICHT SPEZIFIZIERT
Haj Hammadeh, Zain AlabedinZain.HajHammadeh (at) dlr.dehttps://orcid.org/0000-0001-7539-2393NICHT SPEZIFIZIERT
Kenny, PatrickPatrick.Kenny (at) dlr.dehttps://orcid.org/0000-0003-1242-0582NICHT SPEZIFIZIERT
Vishav, VishavVishav.Vishav (at) dlr.dehttps://orcid.org/0000-0002-5658-3984NICHT SPEZIFIZIERT
Kovalov, AndriiAndrii.Kovalov (at) dlr.dehttps://orcid.org/0000-0002-8923-9936NICHT SPEZIFIZIERT
Watolla, HannesHannes.Watolla (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Gerndt, AndreasAndreas.Gerndt (at) dlr.dehttps://orcid.org/0000-0002-0409-8573NICHT SPEZIFIZIERT
Lüdtke, DanielDaniel.Luedtke (at) dlr.dehttps://orcid.org/0000-0002-6758-1562NICHT SPEZIFIZIERT
Datum:31 Mai 2021
Erschienen in:CEAS Space Journal
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI:10.1007/s12567-021-00371-7
Verlag:Springer
ISSN:1868-2502
Status:veröffentlicht
Stichwörter:Fault-tolerance On-board computer architecture Embedded systems Middleware Distributed systems Reliable computing
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Technik für Raumfahrtsysteme
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R SY - Technik für Raumfahrtsysteme
DLR - Teilgebiet (Projekt, Vorhaben):R - ScOSA Flugexperiment
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Softwaretechnologie > Software für Raumfahrtsysteme und interaktive Visualisierung
Institut für Softwaretechnologie
Hinterlegt von: Lund, Andreas
Hinterlegt am:29 Jul 2021 13:01
Letzte Änderung:23 Okt 2023 07:24

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.