Poster Abstract: A Human Body Power Transfer System to Enable Battery-Less Sensor Nodes
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New wearable technologies come with high requirements for miniaturization and flexibility, which are usually restricted by rigid batteries. Capacitive power transfer and communication, employing the human body as a conductive medium enables energy-efficient communication and even the possibility to achieve battery-less wearable sensors distributed on the body. This work presents as a proof-of-concept a complete system consisting of a custom-designed on-body transmitter and battery-less receiver and evaluates the power transmitted and the range achieved. We demonstrate the applicability of our prototype to a real-life scenario as a glucose level tracker even in realistic non-perfect grounding conditions. The realized design offers a power transmission of up to 2.5 mW at distances of 15 cm and at 125 cm, showing the possibility of battery-less on-body edge computing applications. Show more
Book titleIoTDI '23: Proceedings of the 8th ACM/IEEE Conference on Internet of Things Design and Implementation
Pages / Article No.
PublisherAssociation for Computing Machinery
SubjectInternet of Things; Body Sensor Network; Cyber-Physical Systems; Capacitive Power Transfer; Battery-free sensors
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