Definition
High-definitionnetworkcamerareferstoanetworkthatcancontinuouslycaptureatmorethan12FPSandthemaximumresolutionisgreaterthan720P(1280*720),andevenreachesorexceeds1080P(resolution1920*1080)Camera.
Whenmeetingthe720PstandardintheabovedefinitionofHD,itcanbeunderstoodasamegapixellevel.Therefore,wealsocallahigh-definitionnetworkcameraamegapixelnetworkcamera.Camera.
Technicalparameters
TechnicalparametersofHDnetworkcamera:
Hi3512processor;
Built-in200MegapixelCMOSsensor;
Support1080P/15frame,720P/25frameresolution;
StandardH.264MainProfilelevel3videoalgorithm/MJPEGoptional
Streamrange:1Mbps-8Mbps(H.264)/1Mbps-16Mbps(MJPEG
Audiointercom,voicebroadcast;
SDcard,cansupportupto32GBSDcardstorage;
1RS485interface;
1switchinput,1switchoutput;
Autoirisinterface
Features
1.MPEG-4encodingstandard:videousesstandardMPEG4encodinganddecoding,supportsMPEG4andCIFencodingformats;supportsPAL/NTSCvideooutput.
2,supportsDHCP:availableforusersDHCP(DynamicHostConfigurationProtocol)establishestheworkingenvironmentofIPCAM.DHCPisaprotocolthatobtainsvariousparametersnecessaryforcustomerstooperateintheIPnetworkthroughnetworkequipment.Byusingthisprotocol,theworkloadofsystemmanagementisgreatlyreduced,andtheequipmentisminimized.TheIPaddressisautomaticallyaddedtothenetwork.
3.Networkfunctions:supportacompleteTCP/IPprotocolcluster,built-inWEBserver,andsupportbrowseraccess.
4,PTZcontrolFunction:electronicpan-tiltfunction,supportingmanycodinganddecodingprotocols.
5.Alarmfunction:1alarminput,1alarmoutput.
6.Motiondetection:availableMulti-directionalmotiondetectionwithinthevisualrange,withfunctionssuchasshieldingalarmsandalarmlinkageoutput.
7.Usermanagement:multi-leveluserauthoritymanagement.Thesenioradministratorcancreate15operators,eachTheauthorityofeachoperatorcanbeset,andthesystemsecurityisbetter.
8,imagestorage:videoisstoredinstandardMPEG4format,supportsthird-partyplayerstoplayfiles;networkstorage,supportsFTP,SMTPalarmRemoteuploadofinformationsupportslocalstorageandSDcardstorage.
9.Mobilephoneremotemonitoring:WIFI,3Dhigh-definitionnetworkcamerascanperformmobilephoneremotevideomonitoringthroughwirelesssignals,andgrasptheinformationofthemonitoredpersonanytime,anywhere.
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Advantages
High-definitionisthetrendofthetimes.Inthishigh-definitionera,thehigh-definitiontechnologyofnetworkcamerasdeterminesitsdevelopmentdirection.Inthehigh-definitionera,thetechnologyofhigh-definitionnetworkcamerasTheadvantagesareasfollows:
Networked,multiplepeoplecansurftheInternetatthesametime,andmonitoringisnotrestrictedbytimeandplace
Voiceandvideoaredigitized,andthepicturequalityisclearThevideofilemanagementandstorageareeasytomanageandstorevideofiles.IthasfarsurpassedthegeneraltraditionalCCTVshootingpicturequalitymonitoringfunction,andcanintegrateidentification,search,trackingandothertechnologies.
Remotebackup
Easytoinstallandcanbeplacedanywhere(wirelessnetworktransmissionorPoEpowersupply)Thenetworkinfrastructureismature,noadditionalwiringcostsarerequired,andcostsaregreatlyreduced.
Simpleoperation,Highscalabilityandintegration
Thesystemisstable,easytoupdateandupgrade
Widelyusedinpeople’slivelihood,commercialandresearchpurposes
Combinedwith3Gmobilephones,simpleconstructionMobileremotemonitoringsystem
ItcansupportHDTV'swidescreenoutputmode(16:9);thecoverageiswider,andthesamesurveillanceareacanreplacetheoriginalmultiplefixed-pointcamerasandoneomni-directionalcamera.
HD
Themega-pixelhigh-definitionhigh-speeddomecameraadoptsHitachiwidedynamic18xopticalintegratedhigh-definitionmovement,built-inembeddedLinuxoperatingsystem,andsupportsH.264MainProfile,BaselineProfile,MJPEG,JPEGandothervideoencodingprotocols,supportG.726,G.711,ADPCMmultipleaudioencodingprotocols,supportreal-time25-frame720P/1080Phigh-definitionimagestandard,isacollectionofvideocapture,imageAhigh-definition,high-performancenetworkcamerathatintegratesprocessing,videotransmission,videostorage,andvideomanagementfunctions.Itismainlyaimedattheapplicationneedsofthehigh-endsurveillancemarketthatrequiresrelativelyhighimageclarity,including:highways,banks,telemedicine,securitycheckpointsandotherfields.
Performance
Usinghigh-performance,powerfulprogrammablemediaprocessor,single-chipSOC,built-in(ARM9+DSP)andhigh-speedvideoco-processor,highsensitivity,highsignalnoiseComparedwith
composition
High-definitionnetworkcamerasgenerallyconsistoflens,imagesensor,soundsensor,A/Dconverter,image,sound,controllernetworkserver,externalalarm,controlinterface,etc.Partialcomposition.Amongthem,thelensandimagesensorarethemainones.
Asthefront-endpartofthenetworkcamera,thelenshasafixedaperture,automaticaperture,automaticzoom,automaticzoomandothertypes,whicharethesameasanalogcameras.
Imagesensor,soundsensor
Theimagesensorhastwomodes:CMOSandCCD.CMOSisacomplementarymetaloxidesemiconductor.CMOSismainlyasemiconductormadeofsiliconandgermanium.ThebasicfunctionsarerealizedbythenegativelychargedandpositivelychargedtransistorsontheCMOS.Thecurrentgeneratedbythesetwocomplementaryeffectscanberecordedandinterpretedintoanimagebytheprocessingchip.ThemainadvantageofCMOSforCCDisthatitsavespower.UnlikeCCDandCMOScircuitscomposedofdiodes,thereisalmostnostaticpowerconsumption.ThismakesthepowerconsumptionofCMOSonlyabout1/3ofthatofordinaryCCD.TheimportantproblemofCMOSisthatitoverheatsduetothefrequentcurrentconversionwhenprocessingfast-changingimages.Ifthedarkcurrentiswellsuppressed,itisnotabigproblem.Ifthedarkcurrentisnotsuppressedwell,itisveryeasytoappearnoise.
Application
1.Theapplicationofhigh-definitionnetworkcamerasinvideoconferences
High-definitionnetworkcamerasandlarge-screenTVscanquicklyformavideoconference,achieving2Holdameetingorholdadiscussionmeetingatthevenue.Andsupport10pointstowatchinrealtimethroughtheIPnetwork,playPPTpresentationswhileconductingvideoconversations,orshareaudio,videofiles,icondatafilesonthecomputerwiththeotherparty,andeasilybuildasmallvideoconferencesystem.
2.Theapplicationofhigh-definitionnetworkcamerasinteachingsystems
High-definitionnetworkcamerasandlarge-screenTVsorprojectionscanquicklybuildnetworkhigh-definitionvideoteachingsystemsandsupportremoteteachingandtraining.Itsupports10pointsofreal-timewatchingthroughtheIPnetworkwithoutaddingotherequipment,andmorestudentscanwatchlivevideoteachingthroughtheIPnetworkinrealtimethroughstreamingmedia.Regardlessofthedistancebetweentheschoolandthestudentsintheregionsorcities,thereal-timetransmissionofvideo,voice,anddatacanberealizedthroughthenetwork,andthestudentswhoarescatteredintheremoteclassroomsindifferentregionscanbetaughtandtrainedtothegreatestextent.Sharingofteachingresources.
ItisalsopossibletorealizeremoteteachingobservationsandopenclassesthroughtheInternet.YoungleadersandotherteachersandstudentscanobserveanyhonestclassscenesandmakevideosthroughtheInternettofacilitatetheevaluationoftheentirecourse.
3.Theapplicationofhigh-definitionnetworkcamerasinsecuritysurveillancesystems
Thehigh-definitionvideosurveillancesystembuiltwithhigh-definitionnetworkcameraswillbecometheupgradingequipmentofanalog,digitalandstandard-definitionnetworksurveillancesystemsproduct.
Aslongasthereisanetwork,real-timemonitoringcanbecompleted,andsimultaneousaccessofmultiplepointsandmultipleusersissupported.Itcanrealizeall-round,full-HDvideostereoscopicmanagementandmonitoring,andcancarryout24-houruninterruptedmonitoring,Videoandmanagementtocreateaharmoniousenvironment.
4.Theapplicationofhigh-definitionnetworkcamerasinotherareas
High-definitionnetworkcamerascanbeusedincourttrials,prisons,safecitiesandotherfields.
Developmenttrend
1.Theresolutioncontinuestoincrease
Therearemoremegapixels,1.3millionpixels,and2millionpixelsinthemarket.Pixels,other3millionpixels,5millionpixels,and8millionpixelsproductshavealsoappearedonthemarket.
2,COMSgraduallyreplacesCCD
Withthedevelopmentoftechnology,theperformanceofCMOSsensorsisrapidlyimproving.CMOSsensorhasafasterresponsespeedthanCCD,soitismoresuitableforthelargedatavolumecharacteristicsofhigh-definitionmonitoring.Fromamarketperspective,SONY,thetraditionalmanufacturerofCCDs,hasbeguntoshiftitsfocustoCMOSsensors,andalmostexclusivelyusesCMOSsensorsinitshigh-definitionnetworkcameras.
3,ISP(ImageSignalProcessing)
ByintegratingISP,notonlycanthesystemcostbegreatlyreduced,itcanalsogreatlyenhancethestabilityofthevideo,andoptimizetheimageOpticalperformance.Thisplaysanextremelyimportantroleinimprovingtheimagingqualityofhigh-definitionnetworkcameras.
4.Intelligentanalysisfunctionsaremorepractical
Intelligentanalysisfunctionsinclude:videoocclusionandvideolossdetection,videoconversiondetection,videoblurdetection,Videomotiondetection,statisticsonthenumberofentrancesandexits,crowdmovementandcongestionidentification,leftoveridentification,intrusionidentification,etc.
5.Standardization
WhetheritisONVIForPSIA,botharestandardsformedbyenterprisesspontaneouslyorganized,buttheyhavereceivedmoreandmoreresponsesfromenterprisesFromapointofview,itstillhasaveryimportantmeaning.Inthenextfewyears,standardizationwillbecomeapassportforhigh-definitionnetworkcamerastoenterthemarket.
Mattersneedingattention
1.Thechoiceofsecuritysurveillancelens
Inthevideosurveillancesystem,thelensofmegapixelhigh-definitionnetworkcameraChoiceisalsoveryimportant.Therearemanytypesofsecuritysurveillancelenses,andthespecificationsaredazzling.Itisveryimportanttochooseasuitablelensinasurveillanceproject.
2.Factorstopayattentiontowhenbuyingalens
(1)Preventfakeswhenbuying.
(2)Itmustbematchedwiththecamera,especiallythematchingoftheluminousfluxFvalue,sothatthecamerasensitivitycanachievethedesiredeffect.
(3)Megapixelcamerasgenerallyhavetopurchasematchingcorrespondingmegapixellenses.
(4)Lookattheappearanceofthematerial,whetheritmatchestheCMOS/CCDspecificationsandinterface,whetherthecoatingisgood,andthetypeoflens(spherical/aspherical).
(5)Consideringtheapplicationenvironment,thelenstypeinvolvestheselectionofwide-anglelens,standardlens,telephotolens,zoomlens,andfixed-focuslens.
(6)Thewarrantytimeofthelens.
(7)Testthequalityofthelenspersonally.
3.Pointsforpurchasinghigh-definitionmegapixelnetworkcameras
Judgingfromthecurrenthigh-definitionmegapixelnetworkcameraslaunchedinthedomesticmarket,thecompressionusedThemethodismainlybasedonMJPEG/MPEG4andH.264,andthereisnoclearerquantizeddataintermsofitsbandwidthandtransmissionrate,sothatalthoughusersunderstanditssuperhighimagequality,theystillhavesuchahighimagequality.Theimagecontinuityandthebandwidthrequiredfortransmissioncauseconfusion.Therefore,whenchoosingsuchproducts,youneedtopayattentiontothefollowingpoints:
(1)Knowtheactualbandwidth,transmissionrateandotherquantitativeindicatorsunderhigh-qualityimages,andconductascientificevaluationofthenetworkresourcesoftheproject.
(2)UseCCDorCOMSphotosensitivechip?IftheCCDchipscheme,which(singlechannel/multi-channel)"outputbalance"technologyisadopted,andwhethertheframeratemeetstheactualdemand.
(3)Thematchingproblemofopticallens,industrial-grademegalensmustbeusedtogether,otherwisethehigh-definitionpicturequalityadvantagesofthecameracannotbereflected.
Popularity
FromtheperspectiveoftheentiresecurityindustryinChina,networkcamerashavenotyetbeenpopularizedonalargescale,mainlyduetothefollowingthreereasons.
Technologyisnotyetmature
Asweallknow,networkcamerasrelyonthenetworktoexist,andthestatusofthenetworkitselfiscloselyrelatedtotheapplicationeffectsofnetworkcameras.Lookingattheimpactofthebasicnetworkenvironmentonapplications,ifthenetworkmonitoringsystemisbasedontheestablishednetwork,whethertheoriginalnetworkinfrastructurecanmeetthemonitoringrequirementsneedstobeconsidered;whileforthenetworkmonitoringsystembasedonthenewlybuiltnetwork,Therewillbealargeinvestmentinbuildinganewnetworkenvironment,whichmaybeunbearableforusers.Inaddition,theaccessofnetworkcameraswillbetroubledbyproblemssuchasdomainnamesandIPaddresses,andnetworksecurityissuesarealsothefocusofusers'attention.Thecombinedeffectofsuchmanyissuesrestrictsthewideapplicationofnetworkcameras.However,intermsofnetworksecurity,millionsofhigh-definitionnetworkcamerashavebuilt-ininternationallystandardizedVPNprotocols,whichcanbeseamlesslyconnectedwithnetworksecurityequipment,andcanbesafelyaccessedfromtheInternettotheinternalLAN,therebygreatlyimprovingthesecurityofaudioandvideo.,Whichcanpreventintrusionintotheinternalnetworkthroughthenetworkcableofthenetworkcamera.Inaddition,theuniversalhigh-definitionnetworkcamerasalsohaveabuilt-inUPNPprotocol,plugandplay,noneedtochangethesettingsofnetworksecuritydevicessuchasfirewalls,anditalsoreducesthedifficultyofdebugging.
Themarketisimmature
Somestandard-definitionnetworkcamerasarenotasgoodasanalogcameras,andthenetworkcamerasandthetroublesomenon-real-timenaturehavealsocontributedtothefactthatanalogcamerasarestillbeingLarge-scaleselection,andfirmlyoccupythemainstreampositionofthesurveillancemarket.However,withtheimprovementoftechnologyandtheincreaseofuserdemand,high-definitionhasbecomeagoalpursuedbysecuritymanufacturers,and720P/1080Phigh-definitioncamerasaremoreandmorefavoredbyusers.Takesomemainstreammanufacturersasanexample.ThefullseriesofmegaHDcameraslaunchedin2012allfollowtheH.264algorithmstandard,whichcanachievefullreal-timemegaHDof1920×1080,1600×1200,1280×720,andsupports1600×1200.Videomulti-streamvideooutputcaneasilyachievehigh-definitionmonitoring,cancaptureimagedetailstrulyandclearly,andthepicturequalityis4timeshigherthanthatofthetraditionalD1,sothattheapplicationfieldsofhigh-definitioncamerasarebecomingmoreandmoreextensiveandcanbeoptimisticallypredicted.Underthetrendofcentralizedandnetworkedvideosurveillance,high-definitionnetworkcameraswillshowarapiddevelopmenttrend.
Three,thecostofnetworkcamerasisstillhigh.
Comparedwithanalogcameras,becausethenetworkcameramarketisnotmatureyet,itspriceishigh,whichdiscouragesmanyindustryusers.Withthegradualmasteryofthecoretechnologyofcamerasbythelargerdomesticsecuritycompaniesandthelarge-scaleapplicationofdomesticcompressionchips,manydomesticsecuritycompanieshavelaunchedawiderangeofnetworkcameras.Somemanufacturersevenhaveafulllineofhigh-definitionnetworkcameras,whichcanprovideuserswithmorechoices.Thismeansthatthepricewillinevitablybereducedbyalargemargin.Thepriceofhigh-definitionnetworkcamerasisgettingcloserandclosertotraditionalanalogcameras,makingnetworkcamerasaffordabletomoreusers.
Role
(1)Remotemanagement,costsavingRetailchainstoresarehighlydecentralized.Thenearestchainstoresareinthesamecity,andthedistanceiscross-city,Cross-provinceorevencross-border,thisisboundtobringhugeinconveniencetochainstoreownersinmanagement.Itisdifficultforshopkeeperswhodonothavetheclonetechniquetogetatimelyandaccurateunderstandingofthespecificconditionsoftheshopsinvariousplaces.WiththepopularizationoftheInternet,theapplicationofhigh-definitionnetworkcamerascancompletelysolvesuchproblems.Theshopkeepersofthechainstoresonlyneedtologintothedesignatedwebsite,entertheusernameandpassword,andstayathometoknowthereal-timeon-sitesituationofeachchainstore,aswellastheworkingstatusofthestaff,theshopfurnishings,andtheflowofcustomers.
(2)Uniformstandardsarethebestimagedisplay
ChainstoreoperationshaveaunifiedstorefrontandaunifiedFurnishingstyle,unifiedlogo,unifieddistribution,andunifiedservice.Variousunifiedrequirementswillinevitablybringtroublestotheshopownerinmanagement.Butthroughthereal-timehigh-definitionvideoattentionofthehigh-definitionnetworkcamera,notonlytheshopownercanclearlyunderstandthesituationofeachstore,butalsoenhancetheopportunitiesforeachchainstoretolearnfromeachotherandenhancecommunication.
Withtheprosperityofthemarketeconomyinrecentyears,producthomogeneitycompetitionhasbecomeincreasinglyfierce.Thisaspectisparticularlyprominentinretailproducts.High-definitionnetworkcamerascanplaytheiruniqueadvantages.Chainstoresonlyneedtohangtheproductsinthedesignatedstores,publishtheusernamesandpasswordstothemajorityofconsumers,andacceptconsumers'attentiontothestorefront,storefrontservicesandotheraspectsofsupervisionatanytime.Thisformofcommunicationthatconnectsshopsandconsumersthroughhigh-definitionnetworkcamerasnotonlyeffectivelydemonstratesthetrueimageofchainstorestoconsumers,butalsoeffectivelypromotestheimageofstoresandenterprisesonalargerscale.
(3)Securitymonitoring,worry-freemanagement
ProsperousapplicationofsecurityequipmentwithcommercialbuildingsandresidentialcommunitiesThesituationisverydifferent.Thenumberandscaleofretailchainstoresareincreasing.Formorethantenyears,retailchainstoreshavenotpaidmuchattentiontosafetymanagement.Themainreasonisthattheretailchainstoresarerelativelyscattered,andmostofthemarescatteredsmallandmedium-sizedstores,whichcannotrealizethecentralizedsecuritymanagementofcommercialbuildings.Theemergenceofhigh-definitionnetworkcamerascantrulysolvethesecuritymanagementofindividualretailchainstores,high-definitionmonitoring,andsecurityissuesataglance.
Theexistenceoffunctionssuchasremotevideomonitoring,monitoringareasetting,imagecapture,timingrecordingandSMSalarm,undoubtedlybringsgreatconveniencetothesecurityworkofretailchainstores.Theclearareacaresettingofthehigh-definitionnetworkcameracantrackalltheconditionsinthecareareainrealtime.Onceanabnormalsituationoccurs,thenetworkcameracansendanalarmmessagetotheuserintheformofSMS,andautomaticallyrecordhigh-definitionvideoatthesametime.Providevaluablematerialsfortheownertounderstandthesituationafterwards.
Networkcamerainterconnectionstandards:
Mosthigh-definitionnetworkcamerasusetheH.264compressionstandard,buteachmanufacturerhasitsowncommunicationprotocol,anditcannotbeusedtoformmultiplemanufacturers.Interconnection,launchedin2005,effectivelysolvedthisproblem,butnotallnetworkcameramanufacturerssupportthisstandard.Whenpurchasing,youmustpurchasemanufacturersthatsupporttheONVIFprotocol.Afterthat,theafter-salesmaintenanceisverytroublesome!