poster

Can Crystal Oscillators Keep Time Without Power?

Authors:

Arwa Alsubhi,

Nicole Tobias,

Simeon Babatunde,

Jacob SorberAuthors Info & Claims

ENSsys '20: Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems

Pages 84 - 85

https://doi.org/10.1145/3417308.3430278

Published: 16 November 2020 Publication History

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Abstract

Accurate timekeeping is a critical challenge for many intermittently-powered computing devices. Current approaches to keeping time across power failures provide either limited resolution or require additional hardware. We would like to introduce one more. Many devices already use a crystal oscillator for accurate timing when powered. In this poster, we explore whether we can use the off-the-shelf oscillators we're already using to keep time even when we don't have power. We present early-stage experimental results, using the oscillator's stabilization time to approximate power outage times. We will also discuss the strengths, weaknesses, likely applications, and future directions of this work.

References

[1]

Jasper de Winkel, Carlo Delle Donne, Kasim Sinan Yildirim, Przemysław Pawełczak, and Josiah Hester. 2020. Reliable Timekeeping for Intermittent Computing. In Proceedings of the Twenty-Fifth International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS '20). Association for Computing Machinery, New York, NY, USA, 53âÄŞ67. https://doi.org/10.1145/3373376.3378464

[2]

[3]

Josiah Hester and Jacob Sorber. 2017. Flicker: Rapid prototyping for the batteryless internet-of-things. In Proceedings of the 15th ACM Conference on Embedded Network Sensor Systems. 1--13.

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[4]

Josiah Hester, Nicole Tobias, Amir Rahmati, Lanny Sitanayah, Daniel Holcomb, Kevin Fu, Wayne P Burleson, and Jacob Sorber. 2016. Persistent Clocks for Batteryless Sensing Devices. ACM Transactions on Embedded Computing Systems (TECS) 15, 4(2016).

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[5]

Amir Rahmati, Mastooreh Salajegheh, Dan Holcomb, Jacob Sorber, Wayne P Burleson, and Kevin Fu. 2012. TARDIS: Time and remanence decay in SRAM to implement secure protocols on embedded devices without clocks. In Proceedings of the 21st USENIX conference on Security symposium. USENIX Association, 36--36.

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Cited By

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Yildiz ECavedon DYildirim K(2024)On Tracking Time with Better Resolution and Range in Batteryless SystemsProceedings of the 12th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems10.1145/3698384.3699617(42-47)Online publication date: 4-Nov-2024
https://dl.acm.org/doi/10.1145/3698384.3699617
Alsubhi ABabatunde STobias NSorber J(2024)Stash: Flexible Energy Storage for Intermittent SensorsACM Transactions on Embedded Computing Systems10.1145/364151123:2(1-23)Online publication date: 19-Jan-2024
https://dl.acm.org/doi/10.1145/3641511
Alsubhi AAnaraky RBabatunde SBakar ACohen THester JKnijnenburg BSorber J(2023)User-Centered Perspectives on the Design of Batteryless WearablesInternational Journal of Human–Computer Interaction10.1080/10447318.2023.227652840:23(8025-8046)Online publication date: 21-Nov-2023
https://doi.org/10.1080/10447318.2023.2276528
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Index Terms

Can Crystal Oscillators Keep Time Without Power?
1. Computer systems organization
  1. Dependable and fault-tolerant systems and networks
    1. Reliability
  2. Embedded and cyber-physical systems
    1. Embedded systems

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Published In

ENSsys '20: Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems

November 2020

91 pages

ISBN:9781450381291

DOI:10.1145/3417308

Permission to make digital or hard copies of part or all 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 third-party components of this work must be honored. For all other uses, contact the Owner/Author.

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Association for Computing Machinery

New York, NY, United States

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Published: 16 November 2020

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SenSys '20

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SenSys '20: The 18th ACM Conference on Embedded Networked Sensor Systems

November 16 - 19, 2020

Virtual Event, Japan

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Overall Acceptance Rate 21 of 29 submissions, 72%

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Yildiz ECavedon DYildirim K(2024)On Tracking Time with Better Resolution and Range in Batteryless SystemsProceedings of the 12th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems10.1145/3698384.3699617(42-47)Online publication date: 4-Nov-2024
https://dl.acm.org/doi/10.1145/3698384.3699617
Alsubhi ABabatunde STobias NSorber J(2024)Stash: Flexible Energy Storage for Intermittent SensorsACM Transactions on Embedded Computing Systems10.1145/364151123:2(1-23)Online publication date: 19-Jan-2024
https://dl.acm.org/doi/10.1145/3641511
Alsubhi AAnaraky RBabatunde SBakar ACohen THester JKnijnenburg BSorber J(2023)User-Centered Perspectives on the Design of Batteryless WearablesInternational Journal of Human–Computer Interaction10.1080/10447318.2023.227652840:23(8025-8046)Online publication date: 21-Nov-2023
https://doi.org/10.1080/10447318.2023.2276528
Deep VWymore MQiao DDuwe H(2022)Toward a Shared Sense of Time for a Network of Batteryless, Intermittently-powered Nodes2022 IEEE International Performance, Computing, and Communications Conference (IPCCC)10.1109/IPCCC55026.2022.9894317(138-146)Online publication date: 11-Nov-2022
https://doi.org/10.1109/IPCCC55026.2022.9894317
Yıldız EYıldırım K(2021)Persistent Timekeeping Using Harvested Power MeasurementsProceedings of the 19th ACM Conference on Embedded Networked Sensor Systems10.1145/3485730.3493361(572-574)Online publication date: 15-Nov-2021
https://dl.acm.org/doi/10.1145/3485730.3493361

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Persistent Clocks for Batteryless Sensing Devices

High-resolution, low-power time synchronization an oxymoron no more

Multi-voltage domain clock mesh design

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