Real-Time Feedback Scheduler Based On Control Error For Environmental Energy Harvesting Systems
PECCS 2015 PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON PERVASIVE AND EMBEDDED COMPUTING AND COMMUNICATION SYSTEMS(2015)
摘要
This paper addresses a real-time scheduling problem inherent to energy harvesting real-time systems. Traditionally, the energy saving problem is solved mainly by taking into account the tasks scheduling parameters such as worst-case execution time and period. In this work, we construct a feedback control scheduling scheme in which a discrete processor speed is assigned according to the control error and available energy. The real-time control tasks would get high processor speeds when their control errors increase. The experimental evaluation of this solution verifies that the feedback scheduling system based on control error gives a good compromise between available energy and systems performance.
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关键词
Embedded Systems,Feedback Scheduling,Dynamic Voltage and Frequency Selection (DVFS),Energy Harvesting,Control Cost
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