Reliability modelling of time-critical distributed systems
2000 (English)In: Lect. Notes Comput. Sci., 2000, p. 94-105Conference paper, Published paper (Refereed)
Resource type
Text
Abstract [en]
In cost conscious industries, such as automotive, it is imperative for designers to adhere to policies that reduce system resources to the extent feasible, even for safety-critical sub-systems. However, the overall reliability requirement, typically in the order of 10-9 faults/hour, must be both analysable and met. Faults can be hardware, software or timing faults. The latter being handled by hard-real time schedulability analysis, which is used to prove that no timing violations will occur. However, from a reliability and cost perspective there is a tradeoff between timing guarantees, the level of hardware and software faults, and the per-unit cost for meeting the overall reliability requirement. This paper outlines a reliability analysis method that considers the effect of faults on schedulability analysis and its impact on the reliability estimation of the system. The ideas have general applicability, but the method has been developed with modeling of external interferences of automotive CAN buses in mind. We illustrate the method using the example of a distributed braking system.
Place, publisher, year, edition, pages
2000. p. 94-105
Series
Lecture Notes in Computer Science, ISSN 0302-9743 ; 1926
Keywords [en]
Accident prevention, Costs, Fault tolerance, Fault tolerant computer systems, Hardware, Real time systems, Reconfigurable hardware, Reliability, Software reliability, Distributed systems, External interference, Hardware and software, Reliability analysis method, Reliability estimation, Reliability modelling, Reliability requirements, Schedulability analysis, Reliability analysis
Identifiers
URN: urn:nbn:se:mdh:diva-32274Scopus ID: 2-s2.0-84974667667ISBN: 9783540453529 (print)OAI: oai:DiVA.org:mdh-32274DiVA, id: diva2:944829
Conference
20 September 2000 through 22 September 2000
2016-06-302016-06-302016-06-30Bibliographically approved