임베디드 소프트웨어의 설계모델로부터 에너지 효율을 향상시키기 위한 태스크 도출
Task Extraction from Software Design Models to Improve Energy Efficiency of Embedded Software
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초록
저전력을 소모하는 임베디드 시스템 개발의 중요성이 증대되고 있다. 저전력 소모의 시스템 개발은 하드웨어 측면에서 많이 연구되어 왔지만, 소프트웨어의 동작이 하드웨어 전력 소모를 유발하기 때문에 소프트웨어의 소모 전력을 분석하는 것 또한 중요한 이슈중의 하나이다. 본 논문에서는 임베디드 소프트웨어 개발 과정에서 작성되는 설계 모델을 이용하여 에너지 효율적인 태스크 도출 방법을 제시한다. 이를 위하여 먼저 태스크 분할 기준을 제시하고, 이를 이용한 UML 설계 모델의 분할 과정을 설명한다. 제안된 태스크 도출 방법은 성능과 함께 전력 소모에 많은 영향을 미치는 임베디드 소프트웨어 개발에 활용하여 선행적으로 에너지 소모량을 절감할 기회를 제공할 수 있다.
Abstract
The importance of low-power embedded system is being increased. The studies on low-power system have been performed in issues of hardware architecture and operating system. However because the behaviors of software control the working of hardware devices, the power analysis of software is one of critical issues in energy-efficient embedded system development. This paper proposes a technique to extract tasks from software design models with considering power consumption. We first define the criteria for task extraction, and then propose the way to separate out the task from UML 2.0 design models. Our technique can provide the chance to reduce the power consumption as well as to fulfill the performance requirement in the early phase of software development.
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