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Selective policies for efficient state retention in transiently-powered systems

Selective policies for efficient state retention in transiently-powered systems
Selective policies for efficient state retention in transiently-powered systems
Energy harvesting offers the potential for embedded systems to operate without batteries. However, harvesting has been traditionally coupled with large energy buffers such as supercapacitors to mitigate the effect of the source variability. An emerging class of transiently-powered sensing systems enable computation to be sustained during intermittent supply, without using any additional energy storage. To deal with the intermittent nature of the input source, the system state (e.g. registers and RAM) is saved to Non-Volatile Memory (NVM) before a power failure, and restored when the power supply recovers. Existing approaches save the entire state of the system upon power failure, but this is energy and time consuming. In this poster, novel selective policies for efficiently retaining state are explored, which exploit properties of different NVM technologies.
Verykios, Theodoros D.
fc203333-af9c-48e6-b7d6-f22d8cf60636
Balsamo, Domenico
fa2dc20a-e3da-4d74-9070-9c61c6a471ba
Merrett, Geoff
89b3a696-41de-44c3-89aa-b0aa29f54020
Verykios, Theodoros D.
fc203333-af9c-48e6-b7d6-f22d8cf60636
Balsamo, Domenico
fa2dc20a-e3da-4d74-9070-9c61c6a471ba
Merrett, Geoff
89b3a696-41de-44c3-89aa-b0aa29f54020

Verykios, Theodoros D., Balsamo, Domenico and Merrett, Geoff (2017) Selective policies for efficient state retention in transiently-powered systems. At ARM Research Summit 2017 ARM Research Summit 2017, Cambridge, United Kingdom. 11 - 13 Sep 2017.

Record type: Conference or Workshop Item (Poster)

Abstract

Energy harvesting offers the potential for embedded systems to operate without batteries. However, harvesting has been traditionally coupled with large energy buffers such as supercapacitors to mitigate the effect of the source variability. An emerging class of transiently-powered sensing systems enable computation to be sustained during intermittent supply, without using any additional energy storage. To deal with the intermittent nature of the input source, the system state (e.g. registers and RAM) is saved to Non-Volatile Memory (NVM) before a power failure, and restored when the power supply recovers. Existing approaches save the entire state of the system upon power failure, but this is energy and time consuming. In this poster, novel selective policies for efficiently retaining state are explored, which exploit properties of different NVM technologies.

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More information

Published date: 2017
Venue - Dates: ARM Research Summit 2017, Cambridge, United Kingdom, 2017-09-11 - 2017-09-13

Identifiers

Local EPrints ID: 414182
URI: https://eprints.soton.ac.uk/id/eprint/414182
PURE UUID: cc566e8d-c3bf-4560-9622-5f58dae23fff
ORCID for Geoff Merrett: ORCID iD orcid.org/0000-0003-4980-3894

Catalogue record

Date deposited: 18 Sep 2017 16:31
Last modified: 06 Jun 2018 12:42

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