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Enabling battery-less wireless sensor operation using solar energy harvesting at locations with limited solar radiation
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (STC)ORCID iD: 0000-0002-8382-0359
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (STC)
2010 (English)In: Proceedings - 4th International Conference on Sensor Technologies and Applications, SENSORCOMM 2010, IEEE conference proceedings, 2010, p. 602-608Conference paper, Published paper (Refereed)
Abstract [en]

Environmental monitoring applications demand wireless sensor networks to operate over a long period of time. Although energy consumption of these systems has been tremendously reduced, lifetime of sensor nodes is still limited by the capacity and lifetime of batteries used as energy sources. Energy harvesting, and in outdoor deployments particular, solar energy harvesting becomes a suitable way of powering wireless sensor nodes as their power consumption decreases. In this paper we address the feasibility of battery-less operation of wireless sensor nodes using solar energy harvesting at locations where the amount of solar radiation is severely limited and seasonal variations are large. We present two circuit architectures optimized for low energy leakage and evaluate their performance based on data gathered in a deployment during winter in Sundsvall, Sweden. We show that both architectures allow operation of sensor nodes even in the darkest period of the year. Furthermore comparisons between the two architecture designs are provided. © 2010 IEEE.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2010. p. 602-608
Keywords [en]
Energy harvesting, Energy sources, Environmental monitoring, Sensor-node lifetime, Solar radiation, Wireless sensor networks
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-12202DOI: 10.1109/SENSORCOMM.2010.95Scopus ID: 2-s2.0-77957949859ISBN: 978-076954096-2 (print)OAI: oai:DiVA.org:miun-12202DiVA, id: diva2:360433
Note

Art. No.: 5558096

Available from: 2010-11-03 Created: 2010-11-03 Last updated: 2016-09-29Bibliographically approved
In thesis
1. Enabling autonomous envionmental measurement systems with low-power wireless sensor networks
Open this publication in new window or tab >>Enabling autonomous envionmental measurement systems with low-power wireless sensor networks
2011 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Wireless Sensor Networks appear as a technology, which provides the basisfor a broad field of applications, drawing interest in various areas. On theone hand, they appear to allow the next step in computer networks, buildinglarge collections of simple objects, exchanging information with respect totheir environment or their own state. On the other hand, their ability tosense and communicate without a fixed physical infrastructure makes theman attractive technology to be used for measurement systems.Although the interest inWireless Sensor Network research is increasing,and new concepts and applications are being demonstrated, several fundamentalissues remain unsolved. While many of these issues do not requireto be solved for proof-of-concept designs, they are important issues to beaddressed when referring to the long-term operation of these systems. Oneof these issues is the system’s lifetime, which relates to the lifetime of thenodes, upon which the system is composed.This thesis focuses on node lifetime extension based on energy management.While some constraints and results might hold true from a moregeneral perspective, the main application target involves environmental measurementsystems based onWireless Sensor Networks. Lifetime extensionpossibilities, which are the result of application characteristics, by (i) reducingenergy consumption and (ii) utilizing energy harvesting are to be presented.For energy consumption, we show howprecise task scheduling due to nodesynchronization, combined with methods such as duty cycling and powerdomains, can optimize the overall energy use. With reference to the energysupply, the focus lies on solar-based solutions with special attentionplaced on their feasibility at locations with limited solar radiation. Furtherdimensioning of these systems is addressed.It will be shown, that for the presented application scenarios, near-perpetualnode lifetime can be obtained. This is achieved by focusing on efficient resourceusage and by means of a carefully designed energy supply.

Place, publisher, year, edition, pages
Sundsvall: Mittuniversitetet, 2011. p. 94
Series
Mid Sweden University licentiate thesis, ISSN 1652-8948 ; 54
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-12982 (URN)STC (Local ID)978-91-86694-14-2 (ISBN)STC (Archive number)STC (OAI)
Supervisors
Available from: 2011-01-14 Created: 2011-01-14 Last updated: 2016-10-19Bibliographically approved

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Bader, SebastianOelmann, Bengt

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