Michel Rottleuthner, Thomas C. Schmidt, Matthias Wählisch,
Eco: A Hardware-Software Co-Design for In Situ Power Measurement on Low-end IoT Systems,
In: Proc. of 7th International Workshop on Energy Harvesting \& Energy-Neutral Sensing Systems (ENSsys), pp. 22--28, New York: ACM, 2019.
Abstract: In this paper, we present Eco, a hardware-software co-design enabling generic energy management on IoT nodes. Eco is tailored to devices with limited resources and thus targets most of the upcoming IoT scenarios. The proposed measurement module combines commodity components with common system interfaces to achieve easy, flexible integration with various hardware platforms and the RIOT IoT operating system. We thoroughly evaluate and compare accuracy and overhead. Our findings indicate that our commodity design competes well with highly optimized solutions, while being significantly more versatile. We employ Eco for energy management on RIOT and validate its readiness for deployment in a five-week field trial integrated with energy harvesting.
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