Design considerations of sub-mW indoor light energy harvesting for wireless sensor systems

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dc.contributor.author Wang, Wensi S.
dc.contributor.author O'Donnell, Terence
dc.contributor.author Wang, Ningning
dc.contributor.author Hayes, Michael
dc.contributor.author O'Flynn, Brendan
dc.contributor.author Ó Mathúna, S. Cian
dc.date.accessioned 2011-07-28T13:39:41Z
dc.date.available 2011-07-28T13:39:41Z
dc.date.copyright 2010-06
dc.date.issued 2010-06
dc.identifier.citation Wang, W. S., O'Donnell, T., Wang, N., Hayes, M., O'Flynn, B. and O'Mathuna, C. (2010) 'Design considerations of sub-mW indoor light energy harvesting for wireless sensor systems', ACM Journal on Emerging Technologies in Computing Systems (JETC), 6(2), pp. 1-26. doi: 10.1145/1773814.1773817 en
dc.identifier.volume 6 en
dc.identifier.issued 2 en
dc.identifier.startpage 1 en
dc.identifier.endpage 26 en
dc.identifier.issn 1550-4832
dc.identifier.issn 1550-4840
dc.identifier.uri http://hdl.handle.net/10468/380
dc.identifier.doi 10.1145/1773814.1773817
dc.description.abstract For most wireless sensor networks, one common and major bottleneck is the limited battery lifetime. The frequent maintenance efforts associated with battery replacement significantly increase the system operational and logistics cost. Unnoticed power failures on nodes will degrade the system reliability and may lead to system failure. In building management applications, to solve this problem, small energy sources such as indoor light energy are promising to provide long-term power to these distributed wireless sensor nodes. This paper provides comprehensive design considerations for an indoor light energy harvesting system for building management applications. Photovoltaic cells characteristics, energy storage units, power management circuit design and power consumption pattern of the target mote are presented. Maximum power point tracking circuits are proposed which significantly increase the power obtained from the solar cells. The novel fast charge circuit reduces the charging time. A prototype was then successfully built and tested in various indoor light conditions to discover the practical issues of the design. The evaluation results show that the proposed prototype increases the power harvested from the PV cells by 30% and also accelerates the charging rate by 34% in a typical indoor lighting condition. By entirely eliminating the rechargeable battery as energy storage, the proposed system would expect an operational lifetime 10-20 years instead of the current less than 6 months battery lifetime en
dc.description.sponsorship Science Foundation Ireland (ITOBO (398-CRP)); Enterprise Ireland (BuildWise (RI2407)); Science Foundation Ireland (CSET - Centre for Science, Engineering and Technology, Grant No. 07/CE/11147) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher ACM en
dc.relation.uri http://doi.acm.org/10.1145/1773814.1773817
dc.rights © ACM, 2010. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in ACM Journal on Emerging Technologies in Computing Systems (JETC), {Vol. 6, Iss. 2, June 2010} http://doi.acm.org/10.1145/1773814.1773817 en
dc.subject Design consideration en
dc.subject Energy harvesting en
dc.subject PV cells en
dc.subject Maximum power point tracking en
dc.subject Indoor light illuminance en
dc.subject Supercapacitor en
dc.subject.lcsh Wireless sensor nodes en
dc.subject.lcsh Wireless sensor networks en
dc.title Design considerations of sub-mW indoor light energy harvesting for wireless sensor systems en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Wensi S. Wang, Microelectronics Applications Integration Group, Tyndall National Institute, Lee Maltings, Cork, Ireland. Email: wensi.wang@tyndall.ie en
dc.internal.authorcontactother Terence O'Donnell, Tyndall National Institute, Lee Maltings, Cork, Ireland. Email: terence.odonnell@tyndall.ie en
dc.internal.authorcontactother Ningning Wang, Microsystems Centre, Tyndall National Institute, Lee Maltings, Cork, Ireland. Email: ning.wang@tyndall.ie en
dc.internal.authorcontactother Mike Hayes, Tyndall National Institute, Lee Maltings, Cork, Ireland. Email: michael.hayes@tyndall.ie en
dc.internal.authorcontactother Brendan O'Flynn, Tyndall National Institute, Lee Maltings, Cork, Ireland. Email: brendan.oflynn@tyndall.ie en
dc.internal.authorcontactother Cian O'Mathuna, Microelectronics Applications Integration Group, Tyndall National Institute, Lee Maltings, Cork, Ireland. Email: cian.omathuna@tyndall.ie en
dc.internal.availability Full text available en
dc.description.version Accepted Version en
dc.internal.rssid 288214378
dc.internal.rssid 303480413
dc.internal.rssid 303480413
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Enterprise Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Journal on Emerging Technologies in Computing Systems en
dc.internal.copyrightchecked RoMEO. en
dc.internal.IRISemailaddress cian.omathuna@tyndall.ie en


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