research-article

An Energy Neutral Wearable Camera with EPD Display

Authors:

Davide Brunelli,

Luca BeniniAuthors Info & Claims

WearSys '15: Proceedings of the 2015 workshop on Wearable Systems and Applications

Pages 1 - 6

https://doi.org/10.1145/2753509.2753510

Published: 18 May 2015 Publication History

Abstract

Wearable technologies are flooding the consumer market, and have massively entered the market of electronic consumers and people are now surrounded by an increasing number of "smart" objects to wear. The main issue that limits the success of these devices is limited battery lifetime. Energy-neutral operation, which does not require battery recharging or replacement (similar to automatic quartz watches) is highly desirable in this context. In this paper, we present the first energy-neutral wearable device, equipped with an ultra low power camera and an electrophoretic display (EPD) which is supplied by a solar energy harvester. The novel design includes several hardware and software optimizations to achieve energy neutrality. In particular, we implemented innovative methods for displaying gray-scale images to obtain up to 9 gray-scale levels using a black-and-white display. This reduces by 43.7% the energy consumption in comparison to the state of art. Moreover, we implemented aggressive power management for the camera acquisition which saves up to 91.4% of energy to acquire an image. Experimental results, with different scenarios, demonstrate advanced functionality and the energy neutrality of the system that can acquire and display up to 54 images per hour in indoor scenario.

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Cited By

Son BLee J(2017)Design and Implementation of Digital Doorsign System Based on E-paper DisplayAdvances in Computer Science and Ubiquitous Computing10.1007/978-981-10-7605-3_28(168-173)Online publication date: 20-Dec-2017
https://doi.org/10.1007/978-981-10-7605-3_28
Grosse-Puppendahl THodges SChen NHelmes JTaylor SScott JFromm JSweeney DRekimoto JIgarashi TWobbrock JAvrahami D(2016)Exploring the Design Space for Energy-Harvesting Situated DisplaysProceedings of the 29th Annual Symposium on User Interface Software and Technology10.1145/2984511.2984513(41-48)Online publication date: 16-Oct-2016
https://dl.acm.org/doi/10.1145/2984511.2984513
Son BLee J(2016)EPD Noticeboard for Posting Multiple InformationAdvances in Computer Science and Ubiquitous Computing10.1007/978-981-10-3023-9_22(137-142)Online publication date: 23-Nov-2016
https://doi.org/10.1007/978-981-10-3023-9_22

Index Terms

An Energy Neutral Wearable Camera with EPD Display
1. Applied computing
  1. Operations research
    1. Consumer products

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Published In

cover image ACM Conferences

WearSys '15: Proceedings of the 2015 workshop on Wearable Systems and Applications

May 2015

68 pages

ISBN:9781450335003

DOI:10.1145/2753509

Program Chairs:
Ashwin Ashok
Carnegie Mellon University, USA
,
Jie Liu
Microsoft Research, USA
,
Suman Banerjee
University of Wisconsin-Madison, USA

Copyright © 2015 ACM.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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SIGMOBILE: ACM Special Interest Group on Mobility of Systems, Users, Data and Computing

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SIGOPS: ACM Special Interest Group on Operating Systems

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 18 May 2015

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Research-article

Funding Sources

Swiss National Science Foundation Projects: SCOPES
Swiss National Science Foundation Projects : Transient Computing
FP7 project PHIDIAS

Conference

MobiSys'15

Sponsor:

SIGMOBILE

MobiSys'15: The 13th Annual International Conference on Mobile Systems, Applications, and Services

May 18, 2015

Florence, Italy

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WearSys '15 Paper Acceptance Rate 14 of 18 submissions, 78%;

Overall Acceptance Rate 28 of 36 submissions, 78%

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Cited By

Son BLee J(2017)Design and Implementation of Digital Doorsign System Based on E-paper DisplayAdvances in Computer Science and Ubiquitous Computing10.1007/978-981-10-7605-3_28(168-173)Online publication date: 20-Dec-2017
https://doi.org/10.1007/978-981-10-7605-3_28
Grosse-Puppendahl THodges SChen NHelmes JTaylor SScott JFromm JSweeney DRekimoto JIgarashi TWobbrock JAvrahami D(2016)Exploring the Design Space for Energy-Harvesting Situated DisplaysProceedings of the 29th Annual Symposium on User Interface Software and Technology10.1145/2984511.2984513(41-48)Online publication date: 16-Oct-2016
https://dl.acm.org/doi/10.1145/2984511.2984513
Son BLee J(2016)EPD Noticeboard for Posting Multiple InformationAdvances in Computer Science and Ubiquitous Computing10.1007/978-981-10-3023-9_22(137-142)Online publication date: 23-Nov-2016
https://doi.org/10.1007/978-981-10-3023-9_22

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