Environmental Sustainability through Activity-based ComputingJames LandayShort-Dooley ProfessorComputer Science & EngineeringUniversity of Washington			 3rd US-China CS Leadership SummitPeking UniversityJune 14-15, 2010Visiting Faculty ResearcherMicrosoft Research Asia
Landay, Borriello,  Fogarty, Patel ubigreenGiving people the tools to reduce resource usageubigreencombines low-cost sensors, inference, & user feedback to track resource usage & “reward” green behaviorsenvisioned ambient display showing monthly and daily resource usage
HCIEnvironmental PsychologyCHI 2010
behavior changetechniques informationpromptsgoal-settingcomparisoncommitment directs attention has energizing function affects persistenceLocke & Latham, American Psychologist, 2002incentivesfeedback
Froehlich, Dillahu, Klasnja, Consolvo, Harrison, Mankoff, Landayubigreentransportation displaysenses transit behavior via mobile phoneambient imagery on phone rewards green transitCHI 2009* Joint work w/ CMU & Intel
ubigreen esm studyMyExperience Tool, MobiSys2007
ubigreen designActivityDesignerCHI 2008
ubigreen transportation displayPrototyped in 3 days4 weeks for final systemtwo versions – easy w/ ADPilot field study12 in Seattle/Pittsburghran prototype for 2-4 weeksResultsmany wanted to keep usingsaw some behavior “change”liked unfolding story
Patelubigreenhome energy sensingsenses any appliance & associated current used anywhere in entire homeuses 2 low-cost sensorsone at a single outlet
one attached to outside of breaker box contact-less current sensorUbicomp 2008
ubigreen HomeEnergyTableEveritt, Kam, Landay
Viewing Monthly kWh (and pounds CO2)
Adjusting Monthly Goals
Viewing Details
Viewing & Categorizing Tips
TravelTable
Froehlich, Fogarty, Patelubigreenhome water sensingsenses flow & fixture-level activity (e.g., particular toilet, dishwasher) using easy-to-install sensorssenses pressure at a single pointcurrently designing feedback for home display & field trialWon 2009 UW Environmental Innovation ChallengeUbicomp 2009
HydroSense
Home with HydroSense
Unique Pressure Transients
Tested in 10 Homesoutdoor hose spigotutility faucetwater heater98% 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
Environmental Sustainability Through Activity-Based ComputingHelp people to improve their environmental behavioruse long-lived activity as the primary organizing focusSolve these problems usingsensing:		low cost, using existing infrastructureinference: 		actions & high level activitiesfeedback: 		ambient on phones, web, & decorative objects27

Environmental Sustainability Through Activity-based Computing

Editor's Notes

  • #2 [20 minute goal, took 22 minutes, with a couple of questions along the way]
  • #7 Locke and Latham summarize 35 years of research into the effect of goals on behavior:Goals serve a directive function; they direct attention and effort toward goal-relevant activitiesGoals have an energizing function. Hard goals lead to greater effort than easy goals.Goals affect persistence. Hard goals prolong effort (LaPorte & Nath, 1976).I’ll talk more about how goals have been used to motivate environmental behavior with eco-feedback technology in the next part of the talk.