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A New SpaceWire Protocol for Reconfigurable Distributed On-Board Computers

Peng, Ting and Weps, Benjamin and Höflinger, Kilian and Borchers, Kai and Lüdtke, Daniel and Gerndt, Andreas (2016) A New SpaceWire Protocol for Reconfigurable Distributed On-Board Computers. In: Proceedings of the 2016 7th International SpaceWire Conference, SpaceWire 2016, pp. 175-182. International SpaceWire Conference 2016, 25.-27. Okt. 2016, Yokohama, Japan. doi: 10.1109/SpaceWire.2016.7771624. ISBN 978-0-9557-1968-4.

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Official URL: http://ieeexplore.ieee.org/document/7771624/


There are several standardized protocols based on SpaceWire which provide data exchange between several nodes. SpaceWire is also suitable for interprocess communication (IPC), by the help of higher level protocols. However, currently there is no standardized protocol which is targeting IPC on SpaceWire networks. This paper proposes a protocol, which uses the capabilities of SpaceWire to build up networks for distributed computing on a spacecraft. The core of this protocol is the IPC mechanism for communication between the nodes and methods to support a reconfiguration of the network. A key feature of this protocol is an interface for a reconfiguration mechanism, which can be implemented on application level. This enables the utilization of unreliable commercial off the shelf (COTS) nodes, allowing system recovery from erroneous state. Additionally, the reconfiguration can be used to adapt the distributed computer to different mission phases. The protocol has the potential to build the foundation of a distributed on-board computer consisting of COTS components. Such distributed computer could be capable of fulfilling high performance demands as well as high reliability needs. Though, the protocol itself is not restricted to be used solely in fully-featured reconfigurable distributed systems. The IPC methods can be applied stand-alone as well, to establish a lightweight communication between nodes on a SpaceWire network by excluding the reconfiguration parts of the protocol.

Item URL in elib:https://elib.dlr.de/108116/
Document Type:Conference or Workshop Item (Speech)
Title:A New SpaceWire Protocol for Reconfigurable Distributed On-Board Computers
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Lüdtke, DanielUNSPECIFIEDhttps://orcid.org/0000-0002-6758-1562UNSPECIFIED
Date:October 2016
Journal or Publication Title:Proceedings of the 2016 7th International SpaceWire Conference, SpaceWire 2016
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 175-182
Keywords:SpaceWire, Network, Protocol, Reconfigurable, Interprocess Communication, COTS, High Reliability
Event Title:International SpaceWire Conference 2016
Event Location:Yokohama, Japan
Event Type:international Conference
Event Dates:25.-27. Okt. 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Scosa Onboard Computing (old)
Location: Braunschweig , Bremen
Institutes and Institutions:Institut of Simulation and Software Technology > Software for Space Systems and Interactive Visualisation
Institut of Simulation and Software Technology
Institute of Space Systems
Institute of Space Systems > Avionics Systems
Deposited By: Peng, Ting
Deposited On:08 Dec 2016 17:14
Last Modified:31 Jul 2019 20:05

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