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Ninth IEEE International Symposium on Wearable Computers (ISWC'05)
Hybrid Micropower Supply for Wearable-Pervasive Sensor nodes
Osaka, Japan
October 18-October 21
ISBN: 0-7695-2419-2
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%.
Citation:
Nagendra B. Bharatula, Rolf Zinniker, Gerhard Troster, "Hybrid Micropower Supply for Wearable-Pervasive Sensor nodes," iswc, pp.196-197, Ninth IEEE International Symposium on Wearable Computers (ISWC'05), 2005
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