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Battery-free Visible Light Sensing
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Architecture and Computer Communication.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Architecture and Computer Communication.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Architecture and Computer Communication. RISE SICS, Uppsala, Sweden.ORCID iD: 0000-0002-2586-8573
2017 (English)In: Proceedings Of The 23rd Annual International Conference On Mobile Computing And Networking (MOBICOM '17), 2017, p. 582-584Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

We present our efforts to design the first Visible Light Sensing (VLS) system that consumes only tens of mu Ws of power to sense and communicate. Our system requires no modification to the existing light infrastructure and uses unmodulated ambient light as sensing medium. We achieve this by designing a sensing mechanism that uses solar cells to achieve sub-mu Ws of power consumption. Further, we devise an ultra-low power backscatter based transmission mechanism we call Scatterlight that transmits digital readings without incurring the processing and computation overhead of existing sensors. Based on these principles we build a preliminary prototype. Our initial results demonstrate its ability to sense and communicate three hand gestures at 20 mu Ws of power.

Place, publisher, year, edition, pages
2017. p. 582-584
Keywords [en]
Battery-free, Backscatter, Ultra-low power, Visible light sensing
National Category
Communication Systems Computer Engineering
Identifiers
URN: urn:nbn:se:uu:diva-391322DOI: 10.1145/3117811.3131252ISI: 000462893900080OAI: oai:DiVA.org:uu-391322DiVA, id: diva2:1344987
Conference
23rd Annual International Conference on Mobile Computing and Networking (MOBICOM), Snowbird, Utah, USA, October 16 - 20, 2017
Funder
Swedish Energy AgencyAvailable from: 2019-08-22 Created: 2019-08-22 Last updated: 2019-08-22Bibliographically approved

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Soleiman, AndreasVarshney, AmbujVoigt, Thiemo

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