BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:ParkSense: A Smartphone Based Sensing System For On-Street Parking
  - Sarfraz Nawaz (University of Cambridge)
DTSTART:20130918T120000Z
DTEND:20130918T130000Z
UID:TALK46864@talks.cam.ac.uk
CONTACT:Eiko Yoneki
DESCRIPTION:Studies of automotive traffic have shown that on average 30% o
 f traffic in congested urban areas is due to cruising drivers looking for 
 parking. While we have witnessed a push towards sensing technologies to mo
 nitor real-time parking availability\, instrumenting on-street parking thr
 oughout a city is a considerable investment.\n\nIn this paper\, we present
  ParkSense\, a smartphone based sensing system that detects if a driver ha
 s vacated a parking spot. ParkSense leverages the ubiquitous Wi-Fi beacons
  in urban areas for sensing unparking events. It utilizes a robust Wi-Fi s
 ignature matching approach to detect driver's return to the parked vehicle
 . Moreover\, it uses a novel approach based on the rate of change of Wi-Fi
  beacons to sense if the user has started driving. We show that the rate o
 f change of the observed beacons is highly correlated with actual user spe
 ed and is a good indicator of whether a user is in a vehicle. Through empi
 rical evaluation\, we demonstrate that our approach has a significantly sm
 aller energy footprint than traditional location sensors like GPS and Wi-F
 i based positioning while still maintaining sufficient accuracy.\n\nPaper:
  http://www.cl.cam.ac.uk/~sn425/papers/mobicom2013_nawaz.pdf\n
LOCATION:LT2\, Computer Laboratory\, William Gates Builiding
END:VEVENT
END:VCALENDAR