자동차 전장용 실시간 태스크 스케줄링 알고리즘
Real-Time Task Scheduling Algorithm for Automotive Electronic System
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초록
Due to the increasing amount of electronic control system in a vehicle, the automotive software is increasingly sophisticated and complicated. Therefore it may be faced a time critical problem caused by its complexity. In order to solve such problems, the automotive electronic system can use a real-time scheduling mechanism based on predictability. We first consider the standard specification of the AUTOSAR OS and uC/OS-II such as its scheduling theory with time determinism. In this paper, we propose the scheduling algorithm to be conformable to a conformance class of OSEK/VDX specification. Algorithm analysis shows that our scheduling algorithm outperforms an existing Trampoline OS by intuition.
Abstract
Due to the increasing amount of electronic control system in a vehicle, the automotive software is increasingly sophisticated and complicated. Therefore it may be faced a time critical problem caused by its complexity. In order to solve such problems, the automotive electronic system can use a real-time scheduling mechanism based on predictability. We first consider the standard specification of the AUTOSAR OS and uC/OS-II such as its scheduling theory with time determinism. In this paper, we propose the scheduling algorithm to be conformable to a conformance class of OSEK/VDX specification. Algorithm analysis shows that our scheduling algorithm outperforms an existing Trampoline OS by intuition.
참고문헌 (10)
- 권규호, "자동차 전장용 실시간 운영체제의 스케줄링 기법", 2009 대한임베디드공학회 추계학술발표회 (2009)
- 임진택, "동적 메모리 사용 감소를 위한 OSEK OS 커널 구현 메커니즘", 한국자동차공학회 논문집, 17(3), pp.127~141 (2009), 한국자동차공학회
- 조문행, "내장형 실시간 운영체제에서 다차원 기법을 이용한 실시간 태스크 스케줄링 알고리즘", 한국콘텐츠학회 논문지, 10(1), pp.94~102 (2010), 한국콘텐츠학회
- Z.Wu, "An improved method of task context switching in OSEK operating system", Proc. of the 20th Inter. Conf. on Advanced Information Networking and Applications, pp.217~222 (2006)
- J.L.Bechennec, "Trampoline:an openSource implementation of the OSEK", VDX RTOS specification, 2006, 62~69
- P-E Hladik, "Adequacy between AUTOSAR OS specification and real-time scheduling theory", Inter.Symposium on Industrial Embedded Systems, pp.225~233 (2007)
- OS-II The Real-Time Kernel 2, "MicroC", pp.CMP Books, E
- [URL]
- "OSEK/VDX operating system specification"[URL]
- "AUTomotive Open Standard ARchitecture"[URL]