James LandayShort-Dooley ProfessorComputer Science & EngineeringUniversity of Washington
3rd US-China CS Leadership SummitPeking UniversityJune 14-15, 2010
Environmental Sustainability through Activity-based Computing
Visiting Faculty ResearcherMicrosoft Research Asia
ubigreenGiving people the tools to reduce resource usage
Landay, Borriello, Fogarty, Patel
ubigreen combines low-cost sensors, inference, & user feedback to track resource usage & “reward” green behaviors
envisioned ambient display showing monthly and daily resource usage
HCI Environmenta
l Psychology
CHI 2010
behavior change
informationprompts
incentives
goal-settingcomparison
feedback
commitment
techniques
1. directs attention2. has energizing function3. affects persistence
Locke & Latham, American Psychologist, 2002
ubigreen transportation displaysenses transit behavior via mobile phone
ambient imagery on phone rewards green transit
CHI 2009
Froehlich, Dillahu, Klasnja, Consolvo, Harrison, Mankoff, Landay
* Joint work w/ CMU & Intel
ubigreen ESM study
MyExperience Tool, MobiSys 2007
ubigreen design
ActivityDesignerCHI 2008
Prototyped in 3 days• 4 weeks for final system• two versions – easy w/ AD
Pilot field study• 12 in Seattle/Pittsburgh• ran prototype for 2-4 weeks
Results• many wanted to keep using• saw some behavior “change”• liked unfolding story
ubigreen transportation display
ubigreen home energy sensing
contact-less current sensor
senses any appliance & associated current used anywhere in entire home
uses 2 low-cost sensors• one at a single outlet• one attached to outside
of breaker box
Patel
Ubicomp 2008
ubigreen HomeEnergyTable
Everitt, Kam, Landay
Viewing Monthly kWh (and pounds CO2)
Adjusting Monthly Goals
Viewing Details
Viewing & Categorizing Tips
TravelTable
ubigreen home water sensingsenses flow & fixture-level activity (e.g., particular toilet, dishwasher) using easy-to-install sensors
• senses pressure at a single point
currently designing feedback for home display & field trial
Won 2009 UW Environmental Innovation Challenge
Froehlich, Fogarty, Patel
Ubicomp 2009
HydroSense
Home with HydroSense
Unique Pressure Transients
Tested in 10 Homes
outdoor hose spigot utility faucetwater heater
98% aggregate accuracy in controlled experimentfor detecting open/close valve events
HydroSense 2.0Identify partial valve open/close eventsCompound fixture eventsCompound hot/cold eventsAutomatically distinguish hot vs. cold waterAutomatically detect type of fixture
Water Usage Feedback
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Environmental Sustainability Through Activity-Based Computing
Help people to improve their environmental behavior• use long-lived activity as the primary organizing focus
Solve these problems using• sensing: low cost, using existing infrastructure• inference: actions & high level activities• feedback: ambient on phones, web, & decorative
objects
James LandayShort-Dooley ProfessorComputer Science & EngineeringUniversity of Washington
3rd US-China CS Leadership Summit Peking UniversityJune 14-15, 2010
Environmental Sustainability through Activity-based Computing
Visiting Faculty ResearcherMicrosoft Research Asia
[email protected]://dub.washington.edu
