dc.contributor.author |
Miller, T
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|
dc.contributor.author |
Oyewobi, SS
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|
dc.contributor.author |
Abu-Mahfouz, Adnan MI
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dc.contributor.author |
Hancke, GP
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dc.date.accessioned |
2020-10-27T12:32:11Z |
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dc.date.available |
2020-10-27T12:32:11Z |
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dc.date.issued |
2020-10 |
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dc.identifier.citation |
Miller, T., Oyewobi, S.S., Abu-Mahfouz, A.M.I. & Hancke, G.P. 2020. Enabling a battery-less sensor node using dedicated radio frequency energy harvesting for complete o-grid applications. Energies, vol. 13(20). pp. 1-21 |
en_US |
dc.identifier.issn |
1996-1073 |
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dc.identifier.uri |
https://doi.org/10.3390/en13205402
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dc.identifier.uri |
https://www.mdpi.com/1996-1073/13/20/5402
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dc.identifier.uri |
http://hdl.handle.net/10204/11640
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dc.description |
© 2020 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license |
en_US |
dc.description.abstract |
The large-scale deployment of sensor nodes in difficult-to-reach locations makes powering of sensor nodes via batteries impractical. Besides, battery-powered WSNs require the periodic replacement of batteries. Wireless, battery-less sensor nodes represent a less maintenance-intensive, more environmentally friendly and compact alternative to battery powered sensor nodes. Moreover, such nodes are powered through wireless energy harvesting. In this research, we propose a novel battery-less wireless sensor node which is powered by a dedicated 4 W EIRP 920 MHz radio frequency (RF) energy device. The system is designed to provide complete off-grid Internet of Things (IoT) applications. To this end we have designed a power base station which derives its power from solar PV panels to radiate the RF energy used to power the sensor node. We use a PIC32MX220F32 microcontroller to implement a CC-CV battery charging algorithm to control the step-down DC-DC converter which charges lithium-ion batteries that power the RF transmitter and amplifier, respectively. A 12 element Yagi antenna was designed and optimized using the FEKO electromagnetic software. We design a step-up converter to step the voltage output from a single stage fully cross-coupled RF-DC converter circuit up to 3.3 V. Finally, we use the power requirements of the sensor node to size the storage capacity of the capacitor of the energy harvesting circuit. The results obtained from the experiments performed showed that enough RF energy was harvested over a distance of 15 m to allow the sensor node complete one sense-transmit operation for a duration of 156 min. The Yagi antenna achieved a gain of 12.62 dBi and a return loss of -14.11 dB at 920 MHz, while the battery was correctly charged according to the CC-CV algorithm through the control of the DC-DC converter. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
MDPI |
en_US |
dc.relation.ispartofseries |
Workflow;23871 |
|
dc.subject |
Battery-less sensor nodes |
en_US |
dc.subject |
RF harvesting |
en_US |
dc.subject |
Off-grid |
en_US |
dc.subject |
Wireless Power Transfer |
en_US |
dc.subject |
Wireless Sensor Networks |
en_US |
dc.title |
Enabling a battery-less sensor node using dedicated radio frequency energy harvesting for complete o-grid applications |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Miller, T., Oyewobi, S., Abu-Mahfouz, A. M., & Hancke, G. (2020). Enabling a battery-less sensor node using dedicated radio frequency energy harvesting for complete o-grid applications. http://hdl.handle.net/10204/11640 |
en_ZA |
dc.identifier.chicagocitation |
Miller, T, SS Oyewobi, Adnan MI Abu-Mahfouz, and GP Hancke "Enabling a battery-less sensor node using dedicated radio frequency energy harvesting for complete o-grid applications." (2020) http://hdl.handle.net/10204/11640 |
en_ZA |
dc.identifier.vancouvercitation |
Miller T, Oyewobi S, Abu-Mahfouz AM, Hancke G. Enabling a battery-less sensor node using dedicated radio frequency energy harvesting for complete o-grid applications. 2020; http://hdl.handle.net/10204/11640. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Miller, T
AU - Oyewobi, SS
AU - Abu-Mahfouz, Adnan MI
AU - Hancke, GP
AB - The large-scale deployment of sensor nodes in difficult-to-reach locations makes powering of sensor nodes via batteries impractical. Besides, battery-powered WSNs require the periodic replacement of batteries. Wireless, battery-less sensor nodes represent a less maintenance-intensive, more environmentally friendly and compact alternative to battery powered sensor nodes. Moreover, such nodes are powered through wireless energy harvesting. In this research, we propose a novel battery-less wireless sensor node which is powered by a dedicated 4 W EIRP 920 MHz radio frequency (RF) energy device. The system is designed to provide complete off-grid Internet of Things (IoT) applications. To this end we have designed a power base station which derives its power from solar PV panels to radiate the RF energy used to power the sensor node. We use a PIC32MX220F32 microcontroller to implement a CC-CV battery charging algorithm to control the step-down DC-DC converter which charges lithium-ion batteries that power the RF transmitter and amplifier, respectively. A 12 element Yagi antenna was designed and optimized using the FEKO electromagnetic software. We design a step-up converter to step the voltage output from a single stage fully cross-coupled RF-DC converter circuit up to 3.3 V. Finally, we use the power requirements of the sensor node to size the storage capacity of the capacitor of the energy harvesting circuit. The results obtained from the experiments performed showed that enough RF energy was harvested over a distance of 15 m to allow the sensor node complete one sense-transmit operation for a duration of 156 min. The Yagi antenna achieved a gain of 12.62 dBi and a return loss of -14.11 dB at 920 MHz, while the battery was correctly charged according to the CC-CV algorithm through the control of the DC-DC converter.
DA - 2020-10
DB - ResearchSpace
DP - CSIR
KW - Battery-less sensor nodes
KW - RF harvesting
KW - Off-grid
KW - Wireless Power Transfer
KW - Wireless Sensor Networks
LK - https://researchspace.csir.co.za
PY - 2020
SM - 1996-1073
T1 - Enabling a battery-less sensor node using dedicated radio frequency energy harvesting for complete o-grid applications
TI - Enabling a battery-less sensor node using dedicated radio frequency energy harvesting for complete o-grid applications
UR - http://hdl.handle.net/10204/11640
ER -
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en_ZA |