What’s Really Happening?

Building Smart, Building Green…

Smart building technologies can improve buildings’ energy efficiency and indoor environmental quality.

Definitions

Smart Building:

A building that provides a productive and cost-effective environment through optimization of its four basic components - structure, systems, services and management - and the interrelationships between them."

Source: Intelligent Buildings Institute (IBI)

CommonalitiesGreen Building Smart Building

Integrated design

Individual comfort control

Indoor environmental quality

Productive workplace

Flexibility

Energy efficiency

Automatic climate response

Advanced controls

Eco-friendly materials

Advanced security and communications

systems

Advanced structural system

Water efficiency

Ecological site planning

Transportation efficiency

Wireless Measurement & Control

Objective:Study how small multi-modal sensing technology could affect the operation of buildings

MotivationWireless (50-90% of sensor cost

due to wiring)Small, could be embedded or

attached to furniture, ceiling tiles, walls (“smart dust”)

Self locating, could also be used to keep track of furniture and equipment

Low cost (>$5 possible)

Wireless Measurement & Control

IssuesPower sourcesWhat to do with additional

data points?

MethodCollaboration with other UCB

research groupsSensor developmentComputer simulations of

sensor networksDemonstration projects on

UCB campus

Task-Ambient Conditioning

Mixed-mode Buildings

Field Study Findings:

Buildings energy efficient Occupants prefer ventilation and IAQ over

conventional systems Occupants preferred window control to

HVAC control Engineers very concerned about how to

control the HVAC systems

Potential to control via wireless sensors in windows and space

Center for the Built EnvironmentIndustry Partners

• Armstrong World Industries• Arup*

• Calif. Dept. of General Services

• California Energy Commission

• HDR Architecture*

• Hellmuth, Obata, + Kassabaum

• IFMA*

• NBBJ

• Pacific Gas and Electric Co.

• Skidmore, Owings and Merrill• Tate Access Floors*• Trane• United Technologies• US Department of Energy*• US General Services Agency*• Webcor Team* — Webcor Builders,

Alfa Tech Consulting Engineers, Critchfield Mechanical, Rosendin Electric

• York International

*Founding Partners

Cory Hall Demonstration

4/2001 TinyOS 9

Cory Energy Monitoring/Mgmt System

• 50 nodes on 4th floor• 5 level ad hoc net• 30 sec sampling• 250K samples to database over 6 weeks