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Onboard Functional Requirements for Specific Category UAS and Safe Operation Monitoring

Torens, Christoph and Nikodem, Florian and Dittrich, Jörg Steffen and Dauer, Johann C. (2017) Onboard Functional Requirements for Specific Category UAS and Safe Operation Monitoring. CEAS 2017, 6TH CEAS AIR & SPACE CONFERENCE, 2017-10-16 - 2017-10-20, Bucharest, Romania.

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Official URL: http://ceas2017.org/


The new concept for operation of drones, published by EASA in 2015 enables new ways to influence and possibly reduce the necessary safety targets of certain software components without reducing the overall safety of the unmanned aircraft system (UAS). Based on a safety assessment, the so called specific category enables new aircraft system architectures and mission designs. In this context, this paper proposes runtime monitoring as a mitigation strategy for the operation getting out of control to formally assure predefined properties in flight and thus assure the safety of the operation in progress. One particular aspect of this safe operation monitoring is geofencing, the capability to assure containment of the UAS in a previously restricted area. In the regulatory framework of a specific operation risk assessment, such a geofence can be interpreted as a harm barrier. The functional requirements for this geofencing use case are discussed regarding their impact on the underlying specific operation risk assessment. To achieve this, we develop a taxonomy of geofencing characteristics. Consequently, the geofencing requirements are assessed regarding their robustness and applicability for certification purposes. As a result, by monitoring the integrity of the system at runtime, exemplified in this paper with the use case of geofencing, it is investigated if the requirements and thus costs of development and certification process for the remaining components can be reduced.

Item URL in elib:https://elib.dlr.de/118323/
Document Type:Conference or Workshop Item (Speech)
Title:Onboard Functional Requirements for Specific Category UAS and Safe Operation Monitoring
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Torens, ChristophUNSPECIFIEDhttps://orcid.org/0000-0002-0651-4390UNSPECIFIED
Dauer, Johann C.UNSPECIFIEDhttps://orcid.org/0000-0002-8287-2376UNSPECIFIED
Date:16 October 2017
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:UAS, Safety Requirements, Specific Operation Risk Assessment (SORA), Runtime Monitoring, Geofencing
Event Location:Bucharest, Romania
Event Type:international Conference
Event Start Date:16 October 2017
Event End Date:20 October 2017
Organizer:Council of European Aerospace Societies
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Unmanned Aircraft
Deposited By: Torens, Christoph
Deposited On:18 Jan 2018 14:27
Last Modified:24 Apr 2024 20:22

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