Analysis and Design of a Policy based approach to Software Download in a Distributed Automotive Middleware

摘要: DySCAS is an automotive research project with the purpose of providing afuture standard within vehicle electronics layer satisfying needs bothtoday's and tomorrow's producers.This master thesis was carried out at Enea during fall 2007 thepurpose investigating implementation software download through anexternal secure communication link to every node in a system.Furthermore it aimed how policies, which are part makingthe system behave autonomously, should be managed projectwhen came storing these repository. Finally, AUTOSAR standardization,another project, studied for investigation madeabout requirements that set on architecture DySCAS,for co-exist standardization.After initial literature study, addressing issues presented above, adesign followed by implementationand testing this software.A general design supporting load, allowing both thereplacement one middleware component as well update entirenode running middleware, has been presented. In subsequentimplementation possibility using CAN network upgrade thesoftware or more nodes help externallyconnected "upgrading node" explored successfully implementedin demonstrator platform.Furthermore, aRepository Service, Enea's Polyhedra real-time databaseas underlying repository, designed implemented DySCASdemonstrator platform Enea. The supportsthe storage policies context information thus aids theobjective behaving autonomously. Repository Service also provides theDySCAS facility, other parts middlewareor applications top store data.Finally, elaborated tot together bigger