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Modeling the effect of orientation on human-powered inertial energy harvesters

Modeling the effect of orientation on human-powered inertial energy harvesters
Modeling the effect of orientation on human-powered inertial energy harvesters
A fundamental challenge in realizing body-worn sensors is in providing an effective and long-lasting power supply. Issues regarding batteries have prompted researchers to investigate powering devices by extracting energy from the inertial movement of the human body. While previous studies have investigated the effect of generator location and wearer activity on harvestable power, they have not considered the orientation of the generator; this is the focus of this paper. Acceleration data collected across a sample population (ten participants) during different activities (walking and running) and generator location (five locations on the body) are presented. These data are processed to analyze the effect of orientation, and we find that it can significantly reduce the harvestable power. Subsequently, we propose and analyze how two degree-of-freedom generators can improve tolerance to rotation; results indicate that it can be improved by one order of magnitude.
energy harvesting, body sensor networks, micropower generator
1530-437X
434-441
Merrett, Geoff V.
89b3a696-41de-44c3-89aa-b0aa29f54020
Huang, Hui
ae101bbc-d3d7-4bbd-a3ac-55ee4c0f8118
White, Neil M.
c7be4c26-e419-4e5c-9420-09fc02e2ac9c
Merrett, Geoff V.
89b3a696-41de-44c3-89aa-b0aa29f54020
Huang, Hui
ae101bbc-d3d7-4bbd-a3ac-55ee4c0f8118
White, Neil M.
c7be4c26-e419-4e5c-9420-09fc02e2ac9c

Merrett, Geoff V., Huang, Hui and White, Neil M. (2015) Modeling the effect of orientation on human-powered inertial energy harvesters IEEE Sensors Journal, 15, (1), pp. 434-441.

Record type: Article

Abstract

A fundamental challenge in realizing body-worn sensors is in providing an effective and long-lasting power supply. Issues regarding batteries have prompted researchers to investigate powering devices by extracting energy from the inertial movement of the human body. While previous studies have investigated the effect of generator location and wearer activity on harvestable power, they have not considered the orientation of the generator; this is the focus of this paper. Acceleration data collected across a sample population (ten participants) during different activities (walking and running) and generator location (five locations on the body) are presented. These data are processed to analyze the effect of orientation, and we find that it can significantly reduce the harvestable power. Subsequently, we propose and analyze how two degree-of-freedom generators can improve tolerance to rotation; results indicate that it can be improved by one order of magnitude.

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More information

Submitted date: 6 March 2014
e-pub ahead of print date: 7 August 2014
Published date: January 2015
Keywords: energy harvesting, body sensor networks, micropower generator
Organisations: Electronic & Software Systems, EEE

Identifiers

Local EPrints ID: 367661
URI: http://eprints.soton.ac.uk/id/eprint/367661
ISSN: 1530-437X
PURE UUID: f91f9a44-dfc8-4998-9382-ffa2d5c10921
ORCID for Geoff V. Merrett: ORCID iD orcid.org/0000-0003-4980-3894
ORCID for Neil M. White: ORCID iD orcid.org/0000-0003-1532-6452

Catalogue record

Date deposited: 04 Aug 2014 15:52
Last modified: 10 Nov 2017 04:02

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Contributors

Author: Geoff V. Merrett ORCID iD
Author: Hui Huang
Author: Neil M. White ORCID iD

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