ICS Seminar: Dr. Thomas Schmid
Dr. Thomas Schmid
University of Michigan, Ann Arbor
Tuesday, August 17, 5:00pm, ACES 2.402
Hijacking Power and Bandwidth from the Mobile Phone’s Audio Interface
This talk will present our recent work on enabling pervasive personal sensing, focusing on HiJack, a system for stealing power and bandwidth from the mobile phone’s audio jack. HiJack enables a new tier of small and cheap phone-centric sensor peripherals that support plug-and-play operation. More broadly, we envision the mobile phone will become a portal for perpetually-powered and physically-embedded sensors. Our harvester delivers 7.4~mW to a load with 47% efficiency using components that cost $2.34 in 10K volume. Integrating the pieces, this talk will present a combined system for delivering data and power over audio, and demonstrate its use by turning an iPhone into an inexpensive oscilloscope.