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Automatic charging of an energy harvesting powered sensor node from controllable energy source

Petäjäjärvi, Juha; Kaleva, Jarkko; Mikhaylov, Konstantin; Pulkkinen, Heikki; Ahola, Jukka; Björkgren, Max (2018-08-30)

 
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https://doi.org/10.1109/IWCMC.2018.8450521

Petäjäjärvi, Juha
Kaleva, Jarkko
Mikhaylov, Konstantin
Pulkkinen, Heikki
Ahola, Jukka
Björkgren, Max
Institute of Electrical and Electronics Engineers
30.08.2018

J. Petäjäjärvi, J. Kaleva, K. Mikhaylov, H. Pulkkinen, J. Ahola and M. Björkgren, "Automatic charging of an energy harvesting powered sensor node from controllable energy source," 2018 14th International Wireless Communications & Mobile Computing Conference (IWCMC), Limassol, Cyprus, 2018, pp. 600-605. doi: 10.1109/IWCMC.2018.8450521

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© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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doi:https://doi.org/10.1109/IWCMC.2018.8450521
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Abstract

It is expected that the number of the Internet of Things (IoT) devices will grow significantly in the coming years. Batteries, which are today the most common source of energy supply for these devices, have many limitations. The limited capacity and the negative environmental effect of their production and recycling are among the most crucial ones. Energy harvesting has been proposed to overcome this problem. Over the past decade, the academia has produced thousands of papers on this topic, but it is still difficult to find a commercial sensor node operating solely with energy harvesting. One of the major reasons for this is the highly opportunistic and unreliable nature of the energy income from most of the available ambient energy sources. In this paper, we address this problem by proposing a control loop enabling an energy harvesting sensor to request a recharge whenever needed. Energy-wise, the proposed method effectively transforms the operation mode of a passive wireless device from opportunistic to proactive, thus enabling an application to operate in a more predictable manner. The feasibility and efficiency of the proposed approach is demonstrated by implementing a real-life prototype Bluetooth Low Energy capable sensor node equipped with photovoltaic energy harvester, which can communicate and request a recharge from a commercial indoor smart lighting system.

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