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Towards an H/W-S/W Interface description for a comprehensive space systems simulation environment

Kopp, Emanuel and Müller, Sascha and Greif, Fabian and Börner, Anko (2020) Towards an H/W-S/W Interface description for a comprehensive space systems simulation environment. In: 2020 IEEE Aerospace Conference. IEEE. 2020 IEEE Aerospace Conference, 07.-14. März 2020, Big Sky, Montana, USA. DOI: 10.1109/AERO47225.2020.9172440 ISBN 978-1-7281-2734-7 ISSN 1095-323X

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Official URL: https://ieeexplore.ieee.org/document/9172440

Abstract

In the development of space instruments it is common practice to analyze the software, developed in the course of the project, for errors by extensive tests as well as to simulate the different application scenarios to determine the behavior of the software. The hardware is often only modeled as a black box to the software and is usually not an active part of the simulation. In general, the interface between hardware and software is described and analyzed by a Hardware/Software Interaction Analysis (HSIA) at a late stage of the project, when the development of the hardware has generally been completed. In order to be able to integrate the hardware into a representative simulation of the system, especially with regard to Fault Detection Isolation and Recovery (FDIR), it is necessary to develop an interface that contains all important information about the structure of the hardware and its behavior. Thus the current state of the hardware can be described at any stage of the project and can be taken into account for software development. This paper describes a hardware/software-interface description using HSIA and Fault Tree Analysis (FTA) as a baseline. The overall goal is to model the interaction of hardware and software as accurately as possible in order to identify errors both in the software and in the hardware design. The description can also be used at a later stage to implement it into the Model-Based Systems Engineering framework Virtual Satellite (VirSat), developed by the German Aerospace Center (DLR). Concept and implementation of the hardware/software-interface with special focus on fault cases, detectability and fault mitigation will be described. The benefits of an interface description in an early stage of the hardware design are discussed. On the basis of an actual project, a hardware analysis is performed and the interface is described with the developed approach in order to evaluate its suitability. Finally, the feasibility and limits of this approach are assessed.

Item URL in elib:https://elib.dlr.de/135848/
Document Type:Conference or Workshop Item (Speech)
Title:Towards an H/W-S/W Interface description for a comprehensive space systems simulation environment
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kopp, EmanuelEmanuel.Kopp (at) dlr.deUNSPECIFIED
Müller, Saschasa.mueller (at) dlr.dehttps://orcid.org/0000-0002-1913-1719
Greif, FabianFabian.Greif (at) dlr.dehttps://orcid.org/0000-0001-7494-909X
Börner, AnkoAnko.Boerner (at) dlr.deUNSPECIFIED
Date:21 August 2020
Journal or Publication Title:2020 IEEE Aerospace Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.1109/AERO47225.2020.9172440
Publisher:IEEE
ISSN:1095-323X
ISBN:978-1-7281-2734-7
Status:Published
Keywords:FDIR; VirSat; Interface Simulation; Hardware/Software Interface
Event Title:2020 IEEE Aerospace Conference
Event Location:Big Sky, Montana, USA
Event Type:international Conference
Event Dates:07.-14. März 2020
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):Model Based Engineering for Failure Detection, Isolation, and Recovery
Location: Berlin-Adlershof
Institutes and Institutions:Institute for Software Technology
Institute of Optical Sensor Systems > Space Instruments
Institute of Space Systems > Avionics Systems
Deposited By: Kopp, Emanuel
Deposited On:03 Sep 2020 09:19
Last Modified:30 Sep 2020 11:41

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