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OASIS project: deterministic real-time for safety critical embedded systems

Published: 01 July 2002 Publication History

Abstract

Safety critical systems is a growing industrial concern. It is a particular and long time interest for embedded or I&C systems, in nuclear power plant or aircraft applications. Since automotive industry is to use more and more microcontrollers or microprocessors with software in the near future[Bre01], concerns about safety of these systems is becoming mainstream. At the system level, because of intrinsic complexity, it is difficult to guarantee a high dependability. Typical applications should be able to manage numerous control tasks with several different time scales. They does not only demand correctness of algorithms, but also a correct management of tight time constraints, usually dictated by the environment. For system and application design, there is a conflicting interest between algorithm design and time scheduling design. Algorithm design favors a task per targeted control and so a multitasking approach. Time scheduling, on the other hand, has to take care of both strict and precise local chain of events, that needs a careful design in a multitasking environment, and mostly independent events at the system scale, more multitasking prone. One of the highest difficulties arises from the possible existence of very different time scales.

References

[1]
{Bre01} E. Bretz. By-wire cars turn the corner. IEEE Spectrum, pages 68--73, April 2001.
[2]
{DAD00} Vincent David, Christophe Aussaguès, and Jean Delcoigne. Seeking a deterministic multitask framework for safety critical systems: the oasis approach. In ANS/ENS, International Topical Meeting on Nuclear Plant Instrumentation, 2000.
[3]
{Kop} H. Kopetz. The time-triggered approach to real-time system design. In SpringerVerlang, editor, Predictably Dependable Computing Systems, ESPRIT basic research series.

Cited By

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  • (2020)Tice: A real‐time language compilable using C++ compilersSoftware: Practice and Experience10.1002/spe.289150:12(2252-2292)Online publication date: 5-Oct-2020
  • (2018)Visual Servoing for Mobile Ground Navigation2018 IEEE 88th Vehicular Technology Conference (VTC-Fall)10.1109/VTCFall.2018.8690645(1-5)Online publication date: Aug-2018
  • (2010)CONFIGEN: A tool for managing configuration optionsElectronic Proceedings in Theoretical Computer Science10.4204/EPTCS.29.429(32-43)Online publication date: 6-Jul-2010

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cover image ACM Other conferences
EW 10: Proceedings of the 10th workshop on ACM SIGOPS European workshop
July 2002
258 pages
ISBN:9781450378062
DOI:10.1145/1133373
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

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Published: 01 July 2002

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Cited By

View all
  • (2020)Tice: A real‐time language compilable using C++ compilersSoftware: Practice and Experience10.1002/spe.289150:12(2252-2292)Online publication date: 5-Oct-2020
  • (2018)Visual Servoing for Mobile Ground Navigation2018 IEEE 88th Vehicular Technology Conference (VTC-Fall)10.1109/VTCFall.2018.8690645(1-5)Online publication date: Aug-2018
  • (2010)CONFIGEN: A tool for managing configuration optionsElectronic Proceedings in Theoretical Computer Science10.4204/EPTCS.29.429(32-43)Online publication date: 6-Jul-2010

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