Transcript Virtual Extension

Advanced Techniques for Wireless
Control and Monitoring of LED Lighting
Strategies in Light Europe 2014 Conference
Technology Track/Session 4 - Wireless Connectivity/Smart Lighting
By Yariv Oren, CEO at Virtual Extension,
A Wireless Networks Company
Agenda
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Introduction
The Lighting Market
Lighting Control and Protocols
Adding wireless
–
–
–
–
why
where
challenges
what’s available
• Examples
• Summary
2
General lighting market size
SOURCE: McKinsey’s 2012 Global Lighting Market Model
3
Key Market Trends for Lighting and Controls
Drivers
Restrains
– The need for energy savings,
and short & easy payback
benefits
– Increasing legislation, efficiency
standards and government funds
– End-user demand for more
technological advances and
interoperable and open systems
– The capability of LED to deliver
cheaper, lower power and
higher controllable light
– Sluggish economy limits capital
and discretionary spending
– LED (and other lower cost light
sources such as CFL) diminish
the ROI
SOURCEs: Various analysts
4
Lighting Control market size
(compared to ~4.5
for general lighting)
SOURCE: McKinsey’s 2012 Global Lighting Market Model
5
Protocols for Lighting Control
• DALI – the main protocol in use
>64 % from al controllable lighting in Europe
Standard IEC 62386,
new v2
– Other protocols
(KNX, DMX,
1-10V/0-10V)
– Proprietary
Protocols
SOURCE: ZVEI statistics (end 2012) & P van der Kolk & K McCann 27.02.14
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Adding Wireless to Lighting Control
• Wireless has unique features - compared to wiring
– flexibility in deployment, such as in areas difficult to wire
– easy to move lamps after deployment
– easy to expand deployments
• Flexibility and Easy translates in faster deployment and
lower cost (labour, re-paint materials, etc.)
– The total cost of wireless deployment can be lower than of
wiring – check it before making a decision
• Hybrid networks wired–wireless are possible – again, check
it before making a decision
• Advanced modern wireless technologies that are very
reliable and cost-effective
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When to use Wireless
• The main wireless use is for Retrofit:
– usually, the main Retrofit projects scope is to
replace the older lighting technologies with LED
– lighting control is usually added as a secondary
scope
– wireless can then enable lighting control without
the extra cost of wiring or rewiring the site
• In new deployments
– wireless enables lighting control in special
locations, such as old buildings, where not allowed
or difficult to make holes
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Are Retrofits important?
(some consider them negligible)
From NAVIGANT’s August 30, 2013 “Intelligent Lighting Controls for
Commercial Buildings” market study: … retrofits will make up more than
half of the market…
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Wireless for Lighting - Main Challenges
• Ease of handling
– deployment & maintenance (no skilled personnel)
– changes - add luminaries and overcome interference without
stoppages and without bringing the network down
• Scalability - quickly and easily increase size of the network,
even by many orders of magnitude
• Robustness – to wireless interferences and obstructions
• Coexistence of several networks in same area or overlapping
• Low power consumption (in particular in modern LED lighting)
• Low and consistent latency for unicast and broadcast
– also for indistinguishable disparity between wired and wireless
elements (for On/Off and dimming) especially in broadcasting
• Bi-directional, to enable both control and monitoring
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Wireless Technologies
Peer
to
Peer
Line
Bus
Star
Tree
Mesh
Mesh is the most advanced topology today
Routing
The legacy approach,
calculates and uses routing
tables for passing the data
Synchronized Flooding
Uses all the available
routes between the
nodes
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Putting it all together
• Lighting Control protocol
– choose between: DALI - or non-DALI
• in Europe DALI is a common choice, especially in commercial indoor
• good variety of devices – LED luminaries, controllers, presence sensors, etc.
• trend of DALI luminaires use in outdoor as well
• Wireless network
– choose between the various available technologies
• simpler protocols and standards in low-end consumer lighting
• proprietary technologies in commercial and outdoor
– hybrid deployments of wired + wireless
– PLC phasing out, very few exceptions
• Cloud based control
– particularly in large scale deployments
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DALI Hybrid Wired + Wireless - Example
Wireless
Network
DALI
Luminaires
Bridge
Nodes
Deployment Site
Wireless
Gateway
Controller
DALI Bus
1.
2.
3.
4.
5.
DALI Luminaires
DALI
Standing Lamps
Occupancy/
Vacancy
Sensor
Bridge Nodes
DALI Bus
DALI Luminaires
DALI Luminaires
DALI Luminaires
Note: this is a proven example, which
has been tested with various types of
controllers and luminaries, such as from
GE, Helvar, Lutron, Mackwell, OMS,
OSRAM, Philips Lighting and Tridonic
The Wireless extension to DALI includes a Wireless Gateway and one or more Bridge Nodes
The Bridge Node in the E. room drives a full DALI bus with DALI sensor and luminaires, while the
Bridge Nodes on the N. walls and of the standing lamps drive each one DALI luminaire
The Wireless extension to DALI mimics the behavior of a wired DALI; the DALI controller (in the
W. room) does not distinguish between the W. room wired connection and the wireless network
As in any DALI installation, the DALI controllers can be of 2 or more buses, and also can be
stacked, for driving more devices than the DALI limitation of 64 address
This configuration is relevant mainly for indoor and emergency – commercial deployments
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DALI + Internet + Wireless - Example
Wireless
Network
DALI
Luminaires
Bridge
Nodes
Site
Deployment Site
DALI
Luminaires
Standing Lamps
DALI Luminaires
Occupancy/
Vacancy
Sensor
Internet Wireless
Router Gateway
Bridge Nodes
DALI Bus
DALI Bus
Site
Internet Cloud
Site
Server
Site
Control & Monitor
all luminaires
from all sites
Configuration relevant for all types of commercial deployments –
outdoor (including street lighting), indoor and emergency
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Summary
• LED retrofits and new deployments should
consider the use of wireless or hybrid wirewireless solutions for faster and lower cost
deployment
• Increase use of DALI in commercial and outdoor
deployments, with a large variety of excellent
DALI devices and wireless solution available
• For large centralized deployments, consider
cloud management; there, the integration with
DALI and wireless offer the best of all worlds.
15
Thank You
Yariv Oren, CEO, Virtual Extension
www.virtual-extension.com
[email protected]
+972-3-7321207