Safety concept for a mixed criticality on-board software system
- Alonso Muñoz, Alejandro Antonio
- Puente Alfaro, Juan Antonio de la
- Zamorano Flores, Juan Rafael
- Miguel Cabello, Miguel Angel de
- Salazar Marsá, José Emilio
- Garrido Balaguer, Jorge
Publication date
January 2015
DOI Publisher
Elsevier BV ISSN
2405-8963 Citation count (estimate)
3Abstract
This paper presents a safety concept for the on-board software system of the UPMSat-2 experimental satellite. Subsystems with different criticality levels are assigned to different partitions in a partitioned software architecture. The architecture is based on XtratuM, an open-source virtualization kernel, and ORK+, an open-source real-time kernel for high- integrity systems. The safety requirements of the system are analysed, and a safety concept is developed based on the partitioned software architecture. The properties of the implementation resulting from the approach are discussed, and guidelines for future developments are proposed
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