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- Chen, DeJiu, et al.
(författare)
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An Architectural Approach to Autonomics and Self-management of Automotive Embedded Electronic Systems
- 2008
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Ingår i: 4th European Congress ERTS: Embedded Real Time Software 2008. - : SIA (Société des Ingénieurs de l'Automobile - French Automotive Engineers Society).
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Konferensbidrag (refereegranskat)abstract
- Embedded electronic systems in vehiclesare of rapidly increasing commercial importance forthe automotive industry. While current vehicularembedded systems are extremely limited and static,a more dynamic configurable system would greatlysimplify the integration work and increase quality ofvehicular systems. This brings in features likeseparation of concerns, customised softwareconfiguration for individual vehicles, seamlessconnectivity, and plug-and-play capability.Furthermore, such a system can also contribute toincreased dependability and resource optimizationdue to its inherent ability to adjust itself dynamicallyto changes in software, hardware resources, andenvironment condition. This paper describes thearchitectural approach to achieving the goals ofdynamically self-configuring automotive embeddedelectronic systems by the EU research projectDySCAS. The architecture solution outlined in thispaper captures the application and operationalcontexts, expected features, middleware services,functions and behaviours, as well as the basicmechanisms and technologies. The paper alsocovers the architecture conceptualization bypresenting the rationale, concerning the architecturestructuring, control principles, and deploymentconcept. In this paper, we also present the adoptedarchitecture V&V strategy and discuss some openissues in regards to the industrial acceptance.
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| 2. |
- Chen, DeJiu, et al.
(författare)
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Developing a Context-aware Architecture in DySCAS
- 2007
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Konferensbidrag (refereegranskat)abstract
- Software systems in vehicles are of rapidly increasing commercial importance for the automotive industry. Current vehicular embedded systems exhibit a fixed software structure and the possibilities for software upgrades are limited. Due to increasing expectations of context-awareness, dependability, flexibility, cost efficiency and time-to-market; we argue that it is now necessary to enable advanced features that are based on dynamic configuration.To reach the goals of dynamically self-configuring automotive systems, we propose an architecture which is currently being developed in the EC funded DySCAS project. We describe the proposed architecture, with a focus on its support for adaptive behavior. To illustrate the type and extent of adaptability achievable, a set of generic use case classes are briefly described and the requirements they place on the architecture and in particular the adaptive aspects, are discussed.The architecture is based on a distributed hierarchical control and decision strategy, which through the policy-based middleware functions and underlying technologies allows separation-of-concerns, on-line reconfiguration, seamless connectivity, plug-and-play capability, and also increased dependability and resource optimization. Decision points are concerned with both application and resource aspects and are dispersed throughout a distributed platform, allowing the embedding of numerous policies to make context-aware decisions whilst avoiding excessive complexity. The approach is scalable and provides additional freedom for engineers to define the dynamic configuration characteristics.The developed architecture is so far on a functional level and has been validated against system requirements. Current work concentrates on defining the corresponding software architecture, considering automotive platforms and constraints.
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| 3. |
- Chen, DeJiu, et al.
(författare)
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DySCAS System Specification - Part II : Specification of DySCAS MiddlewareReference Architecture
- 2008
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Rapport (refereegranskat)abstract
- The purpose of this document is to provide a comprehensive definition of theDySCAS Middleware Reference Architecture, including the DySCASArchitecture Model together with the underlying DySCAS Component Model andDySCAS Information Model. The component model provides a standardizedapproach to the interfaces, internal structure and behaviours of middlewareservices. The information model constitutes an ontology and effective means forcapturing and formulating the meta-information of system configuration. Suchinformation is typically concerned with the system architecture specification andoperation status that is necessary for run-time configuration management.This document serves as a guide for understanding the functionalities andsemantics of this reference architecture in detail.
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