place lab: bootstrapping location-enhanced computing anthony lamarca yatin chawathe, sunny consolvo...
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Place Lab: Bootstrapping Place Lab: Bootstrapping Location-Enhanced ComputingLocation-Enhanced Computing
Anthony LaMarcaAnthony LaMarca
Yatin Chawathe, Sunny Consolvo Yatin Chawathe, Sunny Consolvo
Jeffrey Hightower, James Scott, Ian SmithJeffrey Hightower, James Scott, Ian Smith
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The Goal of Place LabThe Goal of Place Lab
Enable widely available location-enhanced computing
Build a positioning system that is– Wide-scale, indoor & outdoor
Can be used everywhere
– Privacy observant, low barrier to participation
Can be used by everyone
I am here
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How does it work?How does it work?
We exploit wide-scale WiFi deployment– Urban areas have dense WiFi coverage
– WiFi base stations broadcast unique IDs
– Position WiFi devices using map of base-station-IDs to location
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Where is the data coming from?Where is the data coming from?
Build a global user-contributed RF-location mapping service– Leverage “war drivers” and WiFi clubs
– Collect trace logs of regular users
open
closed
WEP
open
closed
WEP
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DemoDemo
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J2ME / Java 1.3
Many supported platforms
Coming soon to a phone near you
Version 1.1 available at http://placelab.org
Place Lab: The ToolkitPlace Lab: The Toolkit
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Place Lab: The Research ProjectPlace Lab: The Research Project
Location sensing technologies– Using radio beacons for
positioning
Distributed Systems– Building large-scale user-
contributed dataset
Privacy and trust– Making location-based systems
compelling and safe for users
AP sightings
Regional location maps
OpenHash DHT(routing, storage)
Compute servers
AP sightings
Regional location maps
OpenHash DHT(routing, storage)
Compute servers
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Place Lab UsersPlace Lab Users
UCSD’s Active Campus Project
Trinity College, Dublin
University of Washington CSE
GUIR’s Topiary
Kelvin Institute
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ConclusionConclusion
Opportunities for collaborations– User interfaces & privacy models/mechanisms– Development of location-enhanced applications and services
Place Lab is a indoor/outdoor WiFi-based positioning system with a low barrier to participation
http://placelab.org
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Thank You!
Questions?