Implicit sleep mode determination in power management of event-driven deeply embedded systems

Abstract

Energy consumption is a crucial factor for the lifetime of many embedded systems, especially wireless sensor networks. Most modern microcontrollers provide various low power sleep modes. Utilizing them can lead to great energy savings. In this paper we present an approach for power management in embedded systems, based on the event-driven operating system Reflex. The implicit power management is mostly hardware independent, lightweight and efficiently chooses the optimal power saving mode of the microprocessor automatically. © 2009 Springer Berlin Heidelberg.