Optimal Wireless Lighting Control For Office Buildings Kim Rowe

Overview  Lighting Control Efficiency  LED Lighting Efficiency  Wireless Lighting Control  Architectures  Hardware  Software  Implementation  Summary

Lighting Control Efficiency  Lighting Costs  Office Building Lighting Costs  Individual Control Savings  Light Harvesting  7% of Energy*  20% of Building Costs*  23% Cost Reduction*

LED Lighting  Bulb Replacement (20% Longer)  75% Less Energy  Bulb Tube Replacements  Luminair Replacement  110V/60Hz  220V/50Hz  Lighting Control System  Warranty Cost

Wireless Lighting Controls  User Control Convenience  Wireless Remote Per User  Movable Switches  Cell Phone Control  Installation Cost Reduction  Restructuring Cost Reduction  Movable Control Panels & Switches  Reprogramming Lighting Control

Architectures  Hardware System Architecture  Software System Architecture  Unison Ultra Tiny Embedded Linux  Component Hardware Architectures  Control Node  Ballast Control  Light Sensor  Shade Control

System Hardware Architecture

System Hardware Architecture Assumptions  Wireless For:  Cost Reduction  Phone Access  Convenience  Restructuring  Unison Ultra Tiny Embedded Linux  COTS Software Components  Legacy Serial Connections  Lower Security Acceptable

System Software Requirements  Wireline Interface For Maintenance  Login/Password Information  Group Control  Individual Cube and Room Control  Control Panel Support  Solaris, AIX, Linux & Windows …  Browser Based Solution  Scripting Option

Unison  100% Linux Compatible  100% POSIX Compatible  Complete Integrated I/O Components  TCP/IP, UDP, Telnet, Thttpd, Tftpd,...  File Systems  Serial  Graphics  Motor Control  Power Supplies and Lighting Control

Unison Architecture

Control Hardware Architecture

Control Software Architecture

Ballast Hardware Architecture

Ballast Software Architecture

Shade Hardware Architecture

Shade Software Architecture

Light Sensor Hardware Architecture

Light Sensor Software Architecture

Control Panel Hardware Architecture

Control Panel Software Architecture

Implementation  COTS Software  Ultra Tiny Embedded Linux (Unison)  Web Server, TFTP, Telnet with Posix Shell, TCP/UDP, SNMP, SNTP,  Wireless Options: WiFi, WiMAX, Zigbee, Low Cost Zigbee, Bluetooth, RF4Home  SoC ARM Cortex M3 Processors  PWM, SPI, Ethernet, Serial, A/D, uSD, NOR/NAND Flash

Summary  Wireless Office Control = $$$$ Savings  Control Via Switches, Panels, Phones and Remotes – Very Usable  LED Lighting = $$$ Savings  Wireless Installation  50% Savings

Summary  COTS Software  Unison Ultra Tiny Linux  Networking and Integration Components  Management System Integration  ARM Cortex M3 MCUs  Low Cost Hardware Solutions  High Quality (Color Touch Panel, Wireless)

Demo and Questions