Control systems

Definition of intelligent buildings:
http://en.wikipedia.org/wiki/Intelligent_building

Distributed control systems:
http://en.wikipedia.org/wiki/Distributed_control_system

LonWorks:
www.echelon.com
www.lonmark.org

Case studies:
http://www.echelon.com/solutions/building/appstories/documents/BOB_000.pdf

EnOcean:
http://www.enocean.com/en/case-studies/