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Software Defined Buildings. What are building applications? Reconfigurable and responsive buildings How do software-defined and reconfigurable homes differ from commercial buildings? Do the benefits of reconfigurable physical spaces outweigh the drawbacks?
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Software Defined Buildings • What are building applications? • Reconfigurable and responsive buildings • How do software-defined and reconfigurable homes differ from commercial buildings? • Do the benefits of reconfigurable physical spaces outweigh the drawbacks? • What is the API for occupants to program the building?
Possible applications • Consumer-centric, mobile applications • Mute tv when the phone rings • Wire HVAC system to the windows • Drive efficiency and reliability • Fault detection – disconnected valves, broken economizers • Baseline deviations • Model-predictive
Isolation and failure as metrics • Failure and sub-optimality are already very prevalent • What would it mean to fail in a meaningful way? • Hard to drive the building into a truly “unsafe” state • Exceptions are life-safety systems: fire, other alarms, doors (in a fire)
Information plane: mobile data • Push from mobile sensors and data • Integrate into models, geosystem, how to find things?
additional layer of complexity not in a computer OS Nguyen Thi Hoang Lan, http://cnx.org/content/m29708/1.1/
Mapping Layer? • Computer OS doesn’t deal with differing bus architecture • Proposal for mapping layer: • Derive standardized higher-level features from sensor data • occupancy? • temperature map? • Standardized representations of floors, zones? • Need for reliability, accuracy estimate? • Perform control and arbitration at a higher level of abstraction • Scenarios for building control modes • “emergency,” “night” • Customization of lights, energy, user interface