Title

Energy-Harvesting Wearables for Activity-Aware Services

Abstract

Advances in energy-harvesting hardware have created an opportunity for realizing batteryless wearables for continuous and pervasive human activity recognition (HAR). Unfortunately, power consumption of accelerometers used in conventional HAR is relatively high compared to the amount of power that can be harvested practically, which limits energy harvesting's usefuleness. Here, the authors present and evaluate an energy-harvesting wearable sensor architecture, HAR from Kinetic Energy (HARKE), that doesn't require using an accelerometer. Using off-the-shelf products, the authors demonstrate that a kinetic harvester's voltage exhibits distinguishable patterns to distinctly infer human activities while consuming a fraction of the limited harvested energy.

Department(s)

Computer Science

Keywords and Phrases

Accelerometers; Energy harvesting; Internet; Internet of things; Kinetic energy; Kinetics; Pattern recognition; Wearable sensors; Battery-less; Human activities; Human activity recognition; Sensor architectures; Wearable computing; Wearable technology; Internet/Web technologies

International Standard Serial Number (ISSN)

1089-7801; 1941-0131

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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