CAREER: A Holistic Energy Management Framework for Real-time Embedded Systems

随着计算机的日益小型化和通信技术的进步，电池供电的嵌入式系统中有效的能量管理变得前所未有的重要。另一方面，具有严格的时间和服务质量约束的应用程序给这些系统带来了严重的计算负担。最近，研究界在研究实时嵌入式系统的能源管理技术方面投入了大量的精力。然而，这些研究大多集中在单个组件(例如处理器或内存)和特定的电源管理技术(例如降低时钟频率或关闭组件)上。这项职业研究正在为实时嵌入式系统中的系统范围能源管理开发一个全面的框架。该框架包括新的正式模型、算法和工具，以跨多个组件并通过多种技术降低整体系统能量。该项目的另一个重点是生命周期感知计划，这些计划根据数据质量或及时性调整性能，以在固定的能源预算下维持系统在给定的运行(或任务)时间内运行。这项研究将显著延长实时嵌入式系统的寿命，并使其能够在有限的资源下提供高质量的性能，从而对下一代实时嵌入式系统产生重大影响。

With ever-increasing miniaturization of computers and advances in communication technology, effective energy management in battery-operated embedded systems has gained an unprecedented importance. On the other hand, applications with stringent timing and quality-of-service constraints pose a serious computational burden on these systems. The research community has recently invested significant effort into the investigation of energy management techniques for real-time embedded systems. Nevertheless, most of these studies focus on a single component (e.g. the processor or memory) and a specific power management technique (e.g. reducing the clock frequency or turning off a component). This CAREER research is developing a comprehensive framework for system-wide energy management in real-time embedded systems. The framework includes new formal models, algorithms and tools to reduce overall system energy, across multiple components and through multiple techniques. Another focus of the project is on the lifetime-aware schemes that adjust the performance in terms of the data quality or timeliness, to sustain the system for a given operation (or, mission) time with a fixed energy budget. This research will have a substantial impact on the next-generation of real-time embedded systems by extending their lifetime significantly, and by enabling them to deliver high-quality performance with limited resources.