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Sensor-Based Configuration
of Lighting Controls
Charlie Huizenga
VP Innovation
Acuity Brands Lighting
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Four Paradigm Shifts
• Software Driven Control
• Distributed Intelligence
• Sensor Integration
• Internet of Things
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Once we break the connection between how
lighting is powered and how it is controlled…
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Once we break the connection between how
lighting is powered and how it is controlled…
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Once we break the connection between how
lighting is powered and how it is controlled…
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Once we break the connection between how
lighting is powered and how it is controlled…
… we move from hardware-based control to
software-based control.
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Software is a new frontier for the Lighting Industry
CAUTION!
SOFTWARE
AHEAD
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Software
Paradigm Shift #1
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Hardware vs. Software Development
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Hardware Software
Design
Process
Linear Iterative
Defects Expensive Inexpensive
Testing Simple Complex
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Software
• Design
• Configuration
• Management
• EMS Integration
• Mobile apps
• Cloud integration
• Sensor-rich data stream
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Empowering Users with Software
Mobile Apps Desktop Apps
Smart Lighting No user control ≠
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Distributed
Intelligence
Paradigm Shift #2
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Centralized control
•Advantages
•Less computing per node
•Disadvantages
•Increased latency
•Single point of failure
•Less scalable
Occ Sensor
Control
Manager
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Distributed control
•Advantages
•Lowest latency
•No single point of failure
•Most scalable
•Disadvantages
•Increased computing at node
Occ Sensor
Monitoring &
Configuration…
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Integration
Paradigm Shift #3
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Traditional industry model
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Issues with traditional model
• Higher Cost
• Multiple AC/DC conversions
• Excess labor for assembly/installation/planning
• SKU management
• Interoperability problems
• Reduced Performance and Reliability
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Fixtures, Sensors and Controls Are Merging
Yesterday Independent Fixture Independent Controls/Sensors
Today
Combined Fixture/Sensors/Controls Solution
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Integration Benefits
• Lower hardware cost
• Lower assembly cost
• Lower installation cost
• Lower design cost
• Optimized performance
• Higher reliability
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What is driving system cost?
• Fixture costs are going down
• Controls costs are going down
• Start-up costs are going…. Up?
Why?
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Location
Location
Location 24
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Location, Location, Location…
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Location, Location, Location…
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How do we get location?
• Manual
• Barcode stickers/floorplan
• Predefined locations
• “Blinky blinky”
• Automatic
• Neighbor detection
• Light sensors
• RF signal strength
• Hybrid
• Automated start
• Easy manual correction
Labor/time Intensive
Error Prone: 80%-90% accuracy is
not good enough
Best
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Configuration data
Low bandwidth… perfect “aim”
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Sensor Technology for Configuration
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Technology Bandwidth Aim
Light level Low Low
BLE or WiFi High Low
VLC High Low
VLC w/ beaconing High High
Laser Low High
Image sensor High High
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Scaling
• From demo
• to
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IoT
Paradigm Shift #4
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Internet of Things
• Sensors are at the heart of IoT
• Sensor/fixture integration can lead to rich data
• Light
• Energy use
• Thermal
• Occupancy patterns
• Space utilization
• Thermal
• New control concepts
• Dynamic control
• Personalized response
• Color
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What do we need?
Standards
• Communication
• Networking
• Bandwidth management
• Application
• Settings – common language
• Control Behavior
Sensor Research
• Low-cost sensors
• Image sensing/processing