Analogue cov cuab yeej tau kwv yees tau ntau tshaj li ib xyoos kom tawm hauv kev lag luam tag nrho, raws li tau tshwm sim nrog cov kaw lus kaw. Txawm li cas los xij, txawm tias tawm tsam keeb kwm yav dhau los ntawm kev hloov pauv kev sib txuas lus nyob rau hauv daim ntawv ntawm qhov tshwm sim ntawm wireless cov ntaub ntawv kis tau tus mob modules thiab qhov nce mus tas li nyob rau hauv high-txhais hom ntawv, ntu no tseem nyob. Thiab yog hais tias nyob rau hauv lub niche ntawm multimedia technology nws yuav luag imperceptible, ces analog video soj ntsuam yog ib tug tsim nyog tus neeg sib tw rau cov khoom siv digital.
Analogue Video Saib Xyuas Txheej Txheem
Cov no yog ib txwm siv CCTV tshuab siv los ntawm coaxial cable thiab txuas nrog analog DVR. Lub hauv paus ntawm cov khoom siv yog tsim ncaj qha los ntawm lub koob yees duab video, uas tuaj yeem muaj kev xaiv sib txawv. Feem ntau, analog video koob yees duab yog siv rau cov nqi qis video soj ntsuam. Lawv txawv los ntawm monochrome "daim duab" ntawm lub lens yooj yim nrog lub aperture ruaj khov thiab tsis muaj peev xwm hloov qhov focal ntev. Hauv qhov sib piv, cov qauv zoo tshaj plaws muaj cov duab meej meej xim uas tsis muaj kev txwv ntawm ntau lub peev xwm huab cua.
Tib lub sijhawm, txoj kev sib txuas yog yuav luag txhua tus qauv. Lub koob yees duab txuas nrog lub zog hluav taws xob (feem ntau yog lub hwj chim ntawm tus kheej) thiab lub teeb liab recorder rau kev ua haujlwm. Tsis tas li ntawd, lub teeb liab kaw los ntawm analog video soj ntsuam tuaj yeem raug xa mus rau tus neeg saib xyuas, mus rau qhov chaw khaws cia lossis mus rau lub network.
Hardware nta
Direct lub koob yees duab matrices, piv rau cov qauv digital ntawm tib theem, tso cai rau koj los tua cov yeeb yaj kiab zoo tsis hais lub teeb pom kev zoo thiab ntes cov khoom hauv kev nthuav dav. Raws li rau cov txheej txheem dav dav ntawm kev soj ntsuam video analog, nws tsis pub dawb los ntawm txhua qhov tsis zoo nyob hauv IP li. Qhov no suav nrog kev qeeb hauv cov ntaub ntawv xa mus, cov kab mob hauv lub network channel, tus nqi kho tsawg, thiab lwm yam.
Tab sis qhov no ntawm cov txiaj ntsig kuj tseem muaj cai, txij li lub ntiaj teb niaj hnub no kev tsis lees paub tag nrho cov cuab yeej digital yuav luag tsis tuaj yeem. Yog li ntawd, twb nyob rau theem ntawm lub teeb liab hloov dua siab tshiab nyob rau hauv lub registrar, lub infrastructure kuj ntsib teeb meem "digital". Tau kawg, muaj ntau yam tsis zoo uas cov koob yees duab analog video soj ntsuam kev txhaum nrog - IP koob yees duab, nyob rau hauv lem, kuj yog ib tug contrasting keeb kwm yav dhau los uas cov shortcomings yog kom meej meej manifested. Cov no suav nrog kev cuam tshuam hluav taws xob ntawm cov kab sib kis, tsis muaj peev xwm tswj tau lub sijhawm tiag tiag, thiab tsis suav nrog lub tswv yim ntawm kev sib txuas wireless.
New formats
Ib tugQhov teeb meem loj tshaj plaws hauv kev sib tw niaj hnub no rau cov koob yees duab analog yog cov qauv qis-txhais lus. Nkag siab txog cov xwm txheej no, cov tuam txhab tsim khoom tau tsim ntau hom qauv analog, suav nrog HDCVI thiab HDTVI.
Thawj tus qauv yog tus cwj pwm los ntawm cov teeb liab kis tau tus mob siv amplitude quadrature modulation. Qhov no txhais tau hais tias cov kwj deg yog segmented rau hauv ntau txoj kev, nyob rau hauv uas, piv txwv li, luminance thiab chrominance signals yog sib cais. Cov khoom siv ntawm hom no tso cai rau kev sib kis ntawm peb lub teeb liab los ntawm ib lub cable. Ntawm lawv yuav yog suab, yees duab thiab hais kom ua teeb liab nrog PTZ tswj tshuab. Cov no yog niaj hnub analog video soj ntsuam systems, uas xav tias muaj peev xwm tswj lub koob yees duab ntawm ib tug cable - piv txwv li, tus neeg siv yuav tsom mus rau lub ntaus ntawv, scale lub "daim duab", tig lub cev qauv, thiab lwm yam.
HDTVI, ntawm qhov tod tes, nta ob txoj kev sib kis ntawm PTZ tswj cov cim, tab sis tib lub sijhawm, piv rau HDCVI qauv, nws muab kev tiv thaiv tsis txaus tiv thaiv kev cuam tshuam.
Txoj haujlwm rau kev ua haujlwm nrog cov cim analog
CamPermanent tuaj yeem pom zoo ua cov tshuaj yooj yim tshaj plaws rau kev ua haujlwm nrog cov teeb liab hloov dua siab tshiab ntawm cov koob yees duab analog. Nws muaj cov kev ua haujlwm yooj yim rau cov kev pab cuam ntawm hom no, tab sis tib lub sijhawm nws txhim khu kev qha thiab yooj yim - qhov no yog qhov kev daws teeb meem zoo tshaj plaws rau kev teeb tsa kev soj ntsuam hauv tsev.
Yog tias nws tau npaj los npaj cov txheej txheem sib xyaw ua ke nrog kev sib xyaw ntawm cov khoom siv IP thiab analogCov teeb liab, koj yuav tsum siv qhov Video Locator system, uas yuav tso cai rau koj los ua ke tag nrho cov cuab yeej kev nyab xeeb rau hauv ib qho nyuaj.
Kev daws teeb meem rau kev soj ntsuam video analog yog muab los ntawm Smartec NVR cov tsim tawm. Qhov kev pab cuam no tso cai rau koj los teeb tsa "neeg siv-neeg rau zaub mov" architecture, nyob rau hauv uas lub network video soj ntsuam system yuav raug tsim.
Owner Reviews
Feem ntau ntawm cov neeg siv cov tshuab analog yog cov neeg siv khoom, vim muaj kev txwv nyiaj txiag, tsis tuaj yeem hloov mus rau qhov system digital. Lawv muaj nuj nqis analog rau kev them taus, kev paub thiab tsis tas yuav rov tsim kho cable infrastructure.
Qhov tseeb yog tias ntau lub lag luam tseem muaj kev ua haujlwm sib txuas ua ke uas tsis sib xws nrog IP koob yees duab. Raws li, nws yog ib qho tsim nyog cov kauj ruam nyob rau hauv xws li teeb meem rau nruab tau tshaj cov cuab yeej. Tsis tas li ntawd, kev ua haujlwm ntawm kev ua haujlwm tsis yog ib txwm lees paub tias analog video soj ntsuam pom tau poob rau cov koob yees duab digital. Cov neeg siv lawv tus kheej tsis tshua yws yws txog cov duab zoo, distortion lossis kab tsis raug. Lwm qhov yog tias hais txog kev sib txuas lus muaj peev xwm, digital muaj qhov zoo dua, tab sis rau cov neeg siv khoom feem ntau, cov cib fim tshiab tsis tseem ceeb.
Zoo kawg
Cov kev daws teeb meem niaj hnub tau qhib rau cov neeg siv ntau yam haujlwm tshiab hauv ntau cov lus qhia. Nyob rau tib lub sijhawm, muaj kev lag luam dawb huvcov khoom, lub tswv yim tus nqi uas yog NW nyuam qhuav perceptible. Ib feem vim yog kev tshaj tawm xov xwm siab thiab kev siv dav dav ntawm cov koob yees duab digital, analog video soj ntsuam tau pom tau tias poob hauv av ntau xyoo dhau los. Qhov kev vam meej tshaj plaws ntawm cov neeg siv khoom txaus siab hloov mus rau hom tshiab, tau txais ntau yam zoo. Nyob rau theem no, cov neeg tsim khoom ntawm cov koob yees duab analog tau sim ua kom rov zoo li ntu no, vim nws kuj muaj peev xwm ua haujlwm tau zoo.
