2026-09-19T21:33:56Zhttps://dspace.mit.edu/server/oai/request

oai:dspace.mit.edu:1721.1/465802023-05-02T04:11:36Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023

Gupta, Manu, S.M. Massachusetts Institute of Technology. Program in Media Arts and Sciences (Massachusetts Institute of Technology) Program in Media Arts and Sciences (Massachusetts Institute of Technology) 2009-08-26T16:56:10Z 2009-08-26T16:56:10Z 2008 2008 http://hdl.handle.net/1721.1/46580 422621511 Thesis: S.M., Massachusetts Institute of Technology, Department of Architecture and Planning, Program in Media Arts and Sciences, 2008 Includes bibliographical references (leaves 88-89). Using 10 weeks of data from a couple living in an instrumented home, we report on the potential of context-aware power management for energy saving. We identify an opportunity to save on heating and cooling using a system we propose for just-in-time heating and cooling based on travel distance computation from GPS-enabled mobile phones. Analyzing GPS travel data from eight participants (8-12 weeks each) and heating and cooling characteristics from 4 homes, we report results of running computer simulations estimating potential energy savings of a system that could augment existing manual and programmable thermostats. Although manual and programmable thermostats can save large amounts of energy when used properly, studies have shown that well over 40% of U.S. homes may not use energy-saving setbacks when homes are unoccupied. We estimate that using a GPS-enabled thermostat might lead to savings of as much as 7% for some households that do not regularly use the setback features afforded by manual and setback thermostats, without requiring any change in behavior. For some end users, providing one extra bit of information each day could lead to savings as high as 9%, and additional persuasive strategies could save up to 15%. We then report on the implementation of a prototype system and pilot testing of the user interface. We propose five design guidelines for a just-in-time heating and cooling system. by Manu Gupta. S.M. S.M. Massachusetts Institute of Technology, Department of Architecture and Planning, Program in Media Arts and Sciences 89 leaves Massachusetts Institute of Technology MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided. http://dspace.mit.edu/handle/1721.1/7582 Program in Media Arts and Sciences A persuasive GPS-controlled thermostat system Persuasive global positioning system-controlled thermostat system Thesis application/pdf 2023-04-21T20:20:34Z Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="eee47631-a8ad-4873-90a8-1e2cec774ef6"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Title>A persuasive GPS-controlled thermostat system</Title> <Subtitle>Persuasive global positioning system-controlled thermostat system</Subtitle> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2008</PublicationDate> <Authors> <Author> <DisplayName>Gupta, Manu, S.M. Massachusetts Institute of Technology.</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Program in Media Arts and Sciences</Keyword> <Abstract>Using 10 weeks of data from a couple living in an instrumented home, we report on the potential of context-aware power management for energy saving. We identify an opportunity to save on heating and cooling using a system we propose for just-in-time heating and cooling based on travel distance computation from GPS-enabled mobile phones. Analyzing GPS travel data from eight participants (8-12 weeks each) and heating and cooling characteristics from 4 homes, we report results of running computer simulations estimating potential energy savings of a system that could augment existing manual and programmable thermostats. Although manual and programmable thermostats can save large amounts of energy when used properly, studies have shown that well over 40% of U.S. homes may not use energy-saving setbacks when homes are unoccupied. We estimate that using a GPS-enabled thermostat might lead to savings of as much as 7% for some households that do not regularly use the setback features afforded by manual and setback thermostats, without requiring any change in behavior. For some end users, providing one extra bit of information each day could lead to savings as high as 9%, and additional persuasive strategies could save up to 15%. We then report on the implementation of a prototype system and pilot testing of the user interface. We propose five design guidelines for a just-in-time heating and cooling system.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>