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Energy analysis of a wireless sensor node powered by a Wiegand sensor

  • This article describes an Internet of things (IoT) sensing device with a wireless interface which is powered by the energy-harvesting method of the Wiegand effect. The Wiegand effect, in contrast to continuous sources like photovoltaic or thermal harvesters, provides small amounts of energy discontinuously in pulsed mode. To enable an energy-self-sufficient operation of the sensing device with this pulsed energy source, the output energy of the Wiegand generator is maximized. This energy is used to power up the system and to acquire and process data like position, temperature or other resistively measurable quantities as well as transmit these data via an ultra-low-power ultra-wideband (UWB) data transmitter. A proof-of-concept system was built to prove the feasibility of the approach. The energy consumption of the system during start-up was analysed, traced back in detail to the individual components, compared to the generated energy and processed to identify further optimization options. Based on the proof of concept, an application prototype was developed.

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Author:Jonas Wiegner, Hanno Volker, Fabian Mainz, Andreas Backes, Michael Loeken, Felix HüningORCiD
Parent Title (English):Journal of Sensors and Sensor Systems (JSSS)
Publisher:Copernicus Publ.
Place of publication:Göttingen
Document Type:Article
Year of Completion:2023
Date of the Publication (Server):2023/03/14
First Page:85
Last Page:92
Institutes:FH Aachen / Fachbereich Elektrotechnik und Informationstechnik
collections:Open Access
Verlag / Copernicus Publ.
Licence (German):License LogoCreative Commons - Namensnennung