1. Smart Blueprints: Automatically Generated Maps of Homes and the Devices Within Them Jiakang Lu and Kamin Whitehouse Department of Computer Science University of Virginia June 20, 2012

2. “Snap In” Smart Home 1 Motion Temperature Light

3. 2 2 72 °F 71 °F 70 °F 69 °F “Snap In” Smart Home

4. 3 Motion #1 Temperature #1 Light Switch #1 Motion #2 Sunlight Sensor #1 Light Switch #2 72 °F

5. 4 69 °F

6. 5 “Mark and Call” ($2.99 iPhone app store) [5] Harle, et al Image from [4] Schindler, et al Related Work

7. 6 72 °F 69 °F Smart Blueprints Infer floor plan from the app’s sensor data No specialized deployment tools or process Only minor modifications to sensor design

8. Outline Sensor Design Topological Constraints Search Evaluation 7

9. MotionDoorTemperature Magnetometer

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12. Outline Sensor Design Topological Constraints Search Evaluation 11

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25. Outline Sensor Design Topological Constraints Search Evaluation 24

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33. 32 Demo

34. Outline Sensor Design Topological Constraints Search Evaluation 33

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38. 37 Downloaded Floor Plans 12.2 average

39. Limitations Failed on 1 out of 4 homes 1 week to converge Only evaluated light, motion, mag’r sensors How many sensors required? Restricted floor plan encoding 38

40. Conclusions Simple sensors are enough to infer layout – Floor plan – Sensor locations Requires small modifications to sensor design – Physical pairing – Mounting strategies One step towards a “Snap In” smart home 39

41. 40 Questions? (See the demo next!)

42. 41 Backup Slides

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48. “Snap-In” Smart Home 47 72 °F 69 °F 72 °F 70 °F 71 °F