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AUTOSAR 기반 소프트웨어의 실시간성 보장을 위한 태스크와 메시지의 우선순위 지정 방법
윤현민(Hyunmin Yoon),김태호(Taeho Kim),맹지찬(Ji Chan Maeng),김재철(Jaecheol Kim),김석종(Seokjong Kim),구진모(Jinmo Koo),유민수(Minsoo Ryu) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
The rapidly increasing complexity of automotive software has led to an open industry standard, AUTOSAR (AUTomotive Open Systems ARchitecture). The AUTOSAR standard centers around specifying requirements on automotive software architectures and process flows for software development. Since it does not provide specific design and implementation methods, automotive system designers should rely on their own experience and heuristic algorithms that may result in suboptimal designs. In this paper, we consider one of important software design issues, i.e., how to guarantee hard real-time constraints imposed on tasks and communication messages, within the AUTOSAR framework. We first show that the AUTOSAR task model can be transformed into a real-time task model that is amenable to response time analysis. We then propose an iterative priority assignment method based on response time analysis and genetic algorithm.