Aktivitäten pro Jahr
Abstract
Battery-free sensor nodes rely solely on energy harvested from the environment and thus employ supercapacitors as energy storage to allow perpetual operation in absence of ambient energy. To guarantee that the sensor nodes can survive in periods where no harvested energy is available, it is crucial to accurately estimate the lifetime of these devices. However, as we show experimentally in this paper, an accurate lifetime estimation is non-trivial due to the supercapacitors’ complex discharge characteristics (e.g., leakage currents) and large capacitance tolerances. After showing that empirical data capturing the supercapacitors’ characteristics is essential towards an accurate estimation of the system’s lifetime, we introduce an enhanced leakage model that is computationally lightweight and evaluate its accuracy experimentally.
Originalsprache | englisch |
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Titel | Proceedings of the 10th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems (ENSsys '22) |
Publikationsstatus | Veröffentlicht - 6 Nov. 2022 |
Veranstaltung | 10th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems: ENSsys 2022 - Boston, USA / Vereinigte Staaten Dauer: 6 Nov. 2022 → … |
Workshop
Workshop | 10th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems |
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Kurztitel | ENSsys '22 |
Land/Gebiet | USA / Vereinigte Staaten |
Ort | Boston |
Zeitraum | 6/11/22 → … |
ASJC Scopus subject areas
- Elektrotechnik und Elektronik
Fields of Expertise
- Information, Communication & Computing
Aktivitäten
- 1 Vortrag bei Konferenz oder Fachtagung
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Leakage-Aware Lifetime Estimation of Battery-Free Sensor Nodes powered by Supercapacitors
Hannah Brunner (Redner/in)
6 Nov. 2022Aktivität: Vortrag oder Präsentation › Vortrag bei Konferenz oder Fachtagung › Science to science
Auszeichnungen
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Best Paper Award
Brunner, Hannah (Empfänger/-in), Boano, Carlo Alberto (Empfänger/-in) & Römer, Kay Uwe (Empfänger/-in), 6 Nov. 2022
Auszeichnung: Preise / Medaillen / Ehrungen