Green MillenniumPersonalized Lighting Controls

Andrew Krioukov, Arka Bhattacharya, Jason Trager,

Domenico CaramagnoDavid Culler

Sutardja Dai Hall

Internet

sMAP

• Three controllable ballasts per fixture

• ~5 zones per floor

Gateway

BACnet

Old Controls

• 10am – 6pm schedule• 2hr timer other times• Push button interface

Demo

Trust

Demo

Design

BACnet

Gateway

sMAP

MySQL PythonDjango

PythonControl Process

HTTP

Users

1 4 7 10 13 16 19 22 25 28 31 34 37 400

2

4

6

8

10

12

Active Users

Individual Users

Day

s Ac

cess

ed

Before 5/13 After 5/136th Floor 3.38 kW 2.91 kW (86.3%)5th Floor 4.52 kW 4.42 kW (97.8%)4th Floor 3.47 kW 1.61 kW (46.4%)

53.6% Energy Savings

1.86 kW saved

Control

Experiment

Personalized Lighting Installed

Energy Savings

Savings Due to Personal Control

6th Floor 5th Floor 4th Floor0%

20%

40%

60%

80%

100%

86.30% 97.80%

46.40%

Power After 5/13

Energy Saved

46.4%

Lower brightness, fewer zones(2/3 of previous)

Lights off more often

Why not “occupancy” sensors?

• Motion detectors imperfect• “Big brother”• Lose user preferences, human conflict

resolution• Want engaged individuals• Platform for future user interaction

Future Work

• Extend to all floors• Infer schedules, interface design• Heating/cooling controls• Connect to Audit App

Questions?