诺瓦科技LED接收卡显示屏A4s产品说明书.docx

诺瓦科技LED接收卡显示屏A4s产品说明书.docx

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诺瓦科技LED接收卡显示屏A4s产品说明书

A4s

Copyright©2018Xi’anNovaStarTechCo.,Ltd.AllRightsReserved.

Nopartofthisdocumentmaybecopied,reproduced,extractedortransmittedinanyformorbyanymeanswithoutthepriorwrittenconsentofXi’anNovaStarTechCo.,Ltd.

Trademark

A4sReceivingCard

ProductDescription

ChangeHistory

ChangeHistory

Contents

Contents

ChangeHistory................................................................................................................................ii

1

Safety...............................................................................................................................................1

1.1StorageandTransportSafety.....................................................................................................................1

1.2InstallationandUseSafety..........................................................................................................................1

2Overview.........................................................................................................................................2

3Characteristics................................................................................................................................3

3.1ImprovementinDisplayEffect.....................................................................................................................33.2ImprovementinMaintainability....................................................................................................................3

3.3ImprovementinHardwareReliability...........................................................................................................4

3.4ImprovementinSoftwareReliability............................................................................................................5

4HardwareStructure.......................................................................................................................6

4.1Appearance.................................................................................................................................................6

4.2Dimensions..................................................................................................................................................6

4.3Indicator.......................................................................................................................................................7

4.4DefinitionoftheDataInterface（Top）..........................................................................................................8

4.4.124-GroupParallelDataInterface..............................................................................................................8

4.4.264-GroupSerialDataInterface...............................................................................................................11

4.4.3ReferenceDesignforExpandableInterfaces.........................................................................................14

5SoftwareStructure......................................................................................................................16

6TypicalNetworking....................................................................................................................17

7Specifications...............................................................................................................................18

AAcronymsandAbbreviations..................................................................................................19

BTerms............................................................................................................................................20

1Safety

1Safety

ThischapterillustratesthesafetyoftheA4sreceivingcardtoensureproducts’storage,transport,packingandapplicationsafety.Safetydescriptionisapplicabletoallpersonnelthatcontactorusetheproducts.Payattentiontofollowingpoints:

●Readthroughoutthedescription.

●Savethewholedescription.

●Becompliedwiththewholedescription.

1.1StorageandTransportSafety

●Payattentiontodustandwaterprevention.

●Avoidlong-termdirectsunlight.

●Donotplacetheproductsatthepositionnearfireandheat.

●Donotplacetheproductsinanareacontainingexplosivematerials.

●Donotplacetheproductsinstrongelectromagneticenvironment.

●Placetheproductsatastablepositiontopreventdamageorpersonalinjurycausedbydropping.

●Savethepackingboxandmaterialswhichwillcomeinhandyifyoueverhavetoshipyourproducts.Formaximumprotection,repackyourproductasitwasoriginallypackedatthefactory.

1.2InstallationandUseSafety

●Onlytrainedprofessionalsmayinstalltheproducts.

●Donotinsertandunplug（powercordplug）whenthepowerison.

●Ensurethesafegroundingofthedevice.

●Alwayswearananti-staticwristbandandinsulatinggloves.

●Donotplacetheproductsinanareahavingmoreorstrongshake.

●Performdustremovingregularly.

●DonotmaintaintheproductswithoutauthorizationbutcontactNovaStarassoonaspossible.

●ReplacesparepartsonlywiththesamepartssuppliedbyNovaStar.

2Overview

2Overview

A4sisahigh-endreceivingcarddevelopedbyNovaStar,featuringsmallsizeandfullfunctionswithasinglecardloadingcapacityupto256×256（PWMIC）pixels.

A4ssupportspixellevelbrightnessandchromacalibration,whichremovescolordifferenceeffectivelyandimprovesdisplayconsistencyofLEDimages.Inaddition,italsosupportsimagerotationin90°increments,creatingricherimagesandimprovingvisualexperiences.

SoftwareandhardwaredesignsoftheA4sconcerntheuserdeploymentaswellasoperatingandmaintenancescenarios,enablingeasierdeployment,morestableoperatingandmoreefficientmaintenance.

Advancedhardwaredesign:

●Smallsizeandthinnerthicknesssavespaceforincreasinglynarrowercabinetspaceandsmallerspacingbetweenlamps.

●Usehigh-densityconnectorwhichisresistanttodustandvibrationandfeatureshighstabilityandhighreliability.

●Assemblynetworktransformerfeaturessimpledesignandimprovedmagneticcompatibility,helpinguser’sproductstosuccessfullypasstheEMCauthentication.

Usefulsoftwaredesign:

●SupportforLVDStransmission（customizedfunction）

●Supportforsmartmodule（customizedfunction）

●Supportforpre-storedimagesettingofthereceivingcard

●SupportformoduleFlashmanagement

●Supportformonitoringoftemperature,powersupplyvoltage

●SupportformonitoringofEthernetcablecommunicationstatus（customizedfunction）

●Supportfor5-pinLCDmodule

●Supportforimagerotationin90°increments

3Characteristics

Characteristics

Description

Supportingpixellevelbrightnessandchroma

calibration

PixellevelbrightnessandchromacalibrationonNovaLCTcouldremovecolordifferenceeffectively,makethebrightnessandchromaofthewholescreenhighlyconsistent,andimprovedisplayeffect.

Supportingimagerotationin90°increments

（Calibrationoftherotatedimagenotsupported）

OnNovaLCT,theimageonthescreencanbesettorotateinthemultiplesof90°（90°,180°,270°and

Characteristics

Description

Supportingthesmartmodule

（Customizedfunction）

ThesmartmoduleiscomposedofFlashandMCU.Flashcouldstorecalibrationcoefficientsandmoduleinformation.MCUcouldcommunicatewiththereceivingcardtorealizemonitoringovertemperature,voltageandwiringcommunicationstatus,aswellasLEDerrordetection.

Thesmartmodulecouldmakemonitoringunitsmaller,requiringnoindependentmonitoringcardandsavingcabinetspace.

SupportingLVDStransmission

（Customizedfunction）

Thetransmissionmodeoflow-voltagedifferentialsignaling（LVDS）isused,whichreducesthenumberofdatacablesthatconnectthereceivingcard'sHUBboardtothemodule,increasesthetransmissiondistance,improvesthesignaltransmissionquality,enhancestheEMCeffect,andbetterstabilizestheimageoutput.

3.1ImprovementinDisplayEffect

Characteristics

Description

Supportingstoredimagesettingofthereceivingcard

OnNovaLCT,thespecifiedimagescouldbesetasthestartupimageandimagesusedwhenthereisnonetworkorvideosource.

SupportingmoduleFlashmanagement

OnNovaLCT,themoduleFlashcouldbeenabled.

Supportingmonitoringovertemperature,voltageandwiringstatus

OnNovaLCT,temperature,voltageandwiringstatusofthereceivingcardcouldbechecked.

SupportingLCDmodule

Supportone-clickmoduleFlashcalibrationcoefficient

Intheeventofnetworkoutage,holddowntheself-testbuttontoreadthemoduleFlashcalibrationcoefficientbacktothereceivingcard.

3.3ImprovementinHardwareReliability

Characteristics

Description

Supportingdual-cardbackup

Inthehigh-reliabilityenvironment,singleHUBboardcouldbepopulatedwithtwoA4sreceivingcards.Incasethatthemainreceivingcardfails,thestandbyonewillserveinatimelymannertoensurenormaloperationofthedisplay.

Supportingdual-powerbackup&detection

Twopowersuppliescouldbesimultaneouslyconnected,andoperatingstatusofthepowersuppliescouldbedetected.

Supportinghotbackup

Hotbackupisusedtoimprovebusinessandconnectionreliability:

●Deviceredundantbackup:

Thedeviceconnectedtothereceivingcardimprovesbusinessreliabilitythroughmainandstandbyredundantmechanism.Onlythemaindeviceisrunningatacertaintime.Thestandbydevice