Hybrid Micropower Supply for Wearable-Pervasive Sensor nodes

Authors:
Nagendra B. Bharatula;Rolf Zinniker;Gerhard Troster
Affiliations:
Wearable Computing Lab, ETH Zürich, Switzerland;Wearable Computing Lab, ETH Zürich, Switzerland;Wearable Computing Lab, ETH Zürich, Switzerland
Venue:
ISWC '05 Proceedings of the Ninth IEEE International Symposium on Wearable Computers
Year:
2005

Citing 0
Cited 1

Functionality-power-packaging considerations in context aware wearable systems

Personal and Ubiquitous Computing - Special Issue: Selected Papers of the ARCS06 Conference

Quantified Score

Hi-index	0.00

Visualization

Abstract

This article presents an architecture of hybrid micro power supply for wearable-pervasive sensor nodes. A lithium-ion button battery and a photo voltaic module with efficient power management circuitry are implemented as a miniaturised system. The performance was investigated in an office worker scenario with real-time power consumption measurments. It is shown that overall system efficiency in terms of battery life, low power dissipation and suitability for integration into a sensory system are highly improved. The measured power efficiencies in well-lit indoors and outdoors were reported to be in the range of 91-95%.