Ninth IEEE International Symposium on Wearable Computers (ISWC'05) (2005)
Oct. 18, 2005 to Oct. 21, 2005
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ISWC.2005.26
Nagendra B. Bharatula , Wearable Computing Lab, ETH Z?urich, Switzerland
Rolf Zinniker , Wearable Computing Lab, ETH Z?urich, Switzerland
Gerhard Troster , Wearable Computing Lab, ETH Z?urich, Switzerland
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%.
R. Zinniker, G. Troster and N. B. Bharatula, "Hybrid Micropower Supply for Wearable-Pervasive Sensor nodes," Ninth IEEE International Symposium on Wearable Computers (ISWC'05)(ISWC), Osaka, Japan, 2005, pp. 196-197.