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Vibration Powered Battery-Assisted Passive RFID Tag
BibTeX
@MISC{Lai_vibrationpowered,
author = {Elaine Lai and Andrew Redfern and Paul Wright},
title = {Vibration Powered Battery-Assisted Passive RFID Tag},
year = {}
}
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Abstract
Abstract. Real-time supply chain management, theft prevention, and environmental monitoring motivate the need for RFID systems. Battery-assisted RFID tags increase read range and reliability; however, batteries offer only a finite lifetime solution. Hence, an experiment in powering a battery-assisted passive RFID tag using ambient vibration energy was conducted. A piezoelectric power generator was designed at a resonant frequency of 52 Hertz, with potential power output of 500 µW. Manipulation of the electric signal from the generator through a power circuit produced 8mW pulses to the tag, resulting in successful communication with the reader. Power needs were compared to an earlier experiment in powering a Mica2Dot “Mote ” showing a 88 % decrease in necessary power supply and 90 % decrease in charge time. 1
Keyphrases
battery-assisted passive rfid tag resonant frequency theft prevention potential power output electric signal real-time supply chain management necessary power supply successful communication piezoelectric power generator rfid system ambient vibration energy power circuit charge time mica2dot mote power need environmental monitoring finite lifetime solution
