Silicon solar low-power perception platform
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Author
Ben Salah, M. I.
Senaud, L.-L.
Dherse, A.
Ferragni, A.
Koller, J.-M.
Geissbühler, J.
DOI
Abstract
SCALPEL is a powerful, yet energy efficient, wearable platform that combines ultra-low power electronics with embedded Artificial Intelligence (AI) based on the latest ARM Ethos-U55 Neural Processing Unit. Powered by CSEM’s high-efficiency interdigitated back contact (IBC) photovoltaic (PV) technology and running the ultra-low power CSEM Real-Time Operating System (RTOS), it integrates multimodal sensors: vision, audio, ranging, and geotagging to enable low latency and privacy preserving interaction. The demonstrator and its components endured extensive characterization and on-field campaign, enabling full autonomy or significantly extended lifetime. A keyword spotting application illustrates the platform’s efficiency, operating autonomously using the energy harvested by the PV module and a battery.
Publication Reference
CSEM Scientific and Technical Report 2025, p. 103–104
Year
2025