Slide 1
Evaluating Lighting Controls. Results from the Next Generation
Luminaires Design Competition.
Credit(s) earned on completion of this course will be reported
to AIA CES for AIA members. Certificates of Completion for both AIA
members and non-AIA members are available upon request.
This course is registered with AIA CES for continuing
professional education. As such, it does not include content that
may be deemed or construed to be an approval or endorsement by the
AIA of any material of construction or any method or manner
ofhandling, using, distributing, or dealing in any material or
product.
___________________________________________
Questions related to specific materials, methods, and services
will be addressed at the conclusion of this presentation.
AbstractAs lighting controls are perhaps the fastest moving
aspect of lighting technology, this presentation discusses the
recent evaluations of LED luminaires and lighting controls
completed by the Next Generation Luminaires Design Competition.
Unlike previous NGL presentations at LEDucation (and elsewhere),
this session focuses on the evaluation of lighting controls,
discussing both methodology and results.The presentation will cover
NGL evaluations in four areas: (1) quantitative and visual
evaluation of luminaires, (2) basic dimming of submitted luminaires
using digital protocols, (3) color tuning controls, and (4)
connected lighting systems.
Learning ObjectivesAssess the submission requirements and
evaluation methods used in the 2016 NGL Indoor Design
CompetitionIdentify tentative conclusions about luminaire and
controls performance based on the evaluation resultsCompare the
lighting and controls results from current and recent
competitionsRecognize the gaps in current knowledge and highlight
areas for continuing evaluation
Ruth Taylor, IES; Pacific Northwest National LaboratoryDan
Blitzer, LC; The Practical Lighting Workshop Presenters
Competition PartnersPartnerships link energy efficiency &
lighting quality
What Well Cover TodayUnderstanding NGLThe Indoor Competition in
2016Luminaire Evaluations Color Evaluations Dimming
EvaluationsConnected Lighting What did we learn . . . and what was
not clearNext steps for NGL
NGL in Action - VideoVideo loop 4
mins.https://www.youtube.com/watch?v=zFTRBkwH5ak
NGL 2008-2016 Weve Learned a Lot!Performance
CriteriaDocumentationServiceabilityControls
And Seen Lots of Products2016
IndoorAllIntents1211937Judged621023% of intents
judged51%53%Awards15361% of judged awarded24%35%
Updated (from RTs spreadsheet)DB Changed title11
New in 2016 - IndoorLuminaire focused categories with
application targetsHigh output recessed downlightsLinear
pendantsIndustrial high bays2x2 troffers
Control areasSingle - digital (all applications)Single - dim to
warm & white tunableConnected lighting systems
Application Focused TargetsCategorySpacingCeiling Ht.Avg.
Initial fc at the 30 Work Plane Max/Min RatioConceptual Application
Target 2 x 2 Recessed Troffers12 x 12930 fc3:1Open OfficePendant
Mounted Linear12 o.c. 1030 fc 3:1Open OfficeHigh Output Recessed
Downlights10 x 102030 fc 3:1Auditorium or LobbyIndustrial High Bay
20 x 202020 fc, 5 fc vertical illumination 10 aff3:1High Ambient
Industrial (suitable for 50 C)
2016 Outdoor FocusPedestrian Scale12 decorative post top with
dimmingBollards
Parking GarageDetailed controls evaluationChallenges
Judging ApproachOrganized by applicationProduct
EvaluationInstalled and lightedTable top
serviceabilityDocumentationProcessIndependent judgmentPreliminary
scoringDiscussion and decisionPost judging analysis &
verification
Scoring
Seeing is Believing
Evaluating Color
Color QualityEvaluation is based on visual evaluation of the
color appearance, consistency, and rendering of the installed
luminaire.
We collected TM-30 data for the first time in 2016.
48% of entrants submitted data.
TM-30 Data
Judges could see CRI value but not TM-30 data during
judging.
How Judging Scores Compare to TM-30 DataCRI/Rf Awarded
CRI/Rf Submitted
Rg Awarded
Rg Submitted
Lt. green - CRIDk. green - Rf
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Evaluating Dimming
Digital Dimming EvaluationWhat we have tried in the pastWhat we
did this year
Indoor Control Requirements DMX512: Entries must be shipped to
the judging location wired with DMX-In & DMX-Out connectors.
Connector should be XLR-5, male for input, female for output.
Pinout will be as follows:Pin 1 Signal CommonPin 2 DMX Data Pin 3
DMX Data +Pin 4 NonePin 5 NoneDALI: Luminaires must be provided
with 3-0 leads of Purple (DALI+) and Gray (DALI-) THHN wire
connected to the luminaire. Luminaires will be addressed in the
field.Proprietary systems: (System using proprietary control
protocols to control a light source. Individual addressing and
control of each luminaire is required. 0-10v, forward phase,
reverse phase, or 3-wire line voltage are not considered
proprietary and will not be reviewed. Wall box dimming will also
not be considered proprietary.)
All products must include detailed installation instructions.
All connectors must be included; power will be via 5-15P Plug.
System must be able to individually control each luminaire.
Controller for judges must be provided on a 50 whip.
The Protocol
MixAllWinners2015DALI39.6%63.2%DMX20.8%10.5%Proprietary39.6%26.3%2016DALI52.8%57.9%DMX30.2%21.1%Proprietary30.2%5.3%
Dimming SequenceDimming LevelFade Time1100%Zero fade2Power to
luminaire3off - 100%, 100% - offZero fade4off - 100%, 100% - off5
sec5off - 100%, 100% - off15 sec6off - 100%, 100% - off30 sec7100%,
50%, 20%, 10%, 5%, 1%, offZero fade8off, 1%, 5%, 10%, 20%, 50%,
100%
Same sequence for each entry
Indoor Control Evaluation CriteriaColor constancy Dimming
rangeDimming smoothnessStart conditionsFlickerOther criteria deemed
appropriate by the judges
Understanding Dimming Curves
Dimming Schema
Intention Expectation0-10VDALIDMXOtherMeasured
PerceivedLinearLogarithmic
What is being controlled?What does 50% dimmed mean?Control
signal?Power?Measured light?Integrating sphere reading i.e.
luminous fluxlight meter reading i.e. illuminancePerceived
light?visual interpretationaffected by adaptation, eye
dilationSource: IESNA Lighting Handbook, 9th Edition
Commercial DALI dimming curves
Connected Lighting Evaluation
Evaluation SpecificationsDLC CALC connectionKey parametersCode
compliant DaylightPresence detectionIndividual controlOverlapping
groupsEntrant optionsWired or wireless, hybrid OKIntegrated or
separate
Evaluation Set UpAll entries in the same room3-6 luminaires
providedDaylight simulatedPresence timed
Evaluation ProtocolEntrant guidePre-qualificationCheck list of
capabilitiesReview of documentationVisual evaluationLighting
performanceDimming performanceSensor
performanceInstallation/configuration
What We Saw 2 Basic System TypesExternal controller with
networked luminaires
Self-contained network (all logic on board)
External ControllerBenefits:Robust control functionality,
typically can interface with BMSMany options for luminaire
stylesWell suited for new construction and complex
projectsLimitations:Dual points of responsibilityMore complicated
installationMore complicated start up and commissioningCost for
smaller projects
Manufacturer supplies control system, luminaire by others
Self-Contained NetworkBenefits:Integrated solution, single point
of responsibilitySimple installation, start up, and
commissioningWell suited for retrofits and smaller
projectsLimitations:Limited control functionalityLimited options
for luminaire styles
Integrated fixture/control out of the box
Challenges for the Next EvaluationHow do you know how system
capability matches to project needs (mostly by experience
today)?How do you know that you have correctly configured a system
is professional commissioning necessary?In practice, if a system
fails to meet expectations, is it capability, configuration, or
defect?More robust evaluation setting (sensors)Better configuration
process
Whats Ahead for NGL
Connected Lighting Current DOE Activities
2017 ThoughtsContinued emphasis on digital controls and
connected systemsContinued refinement of application focused
evaluationsMore realistic installations (expanded number of
sites?)Your ideas are [email protected]
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2016 Winners AnnouncementEnd of April San Diego, CA.
This concludes The American Institute of ArchitectsContinuing
Education Systems Course
Thanks! Questions?
