Daim ntawv thov ntawm hluav taws xob thiab kho qhov muag pom hauv cctv ntev ntau lub lens

Muaj ob hom defog tshuab.
Kho qhov muag defog
Feem ntau, 770 ~ 390nm pom lub teeb tsis tuaj yeem hla huab, txawm li cas los xij, Infrared tuaj yeem hla cov pos huab, vim hais tias infrared muaj qhov ntev yoj dua li pom lub teeb, nrog pom tseeb dua qhov cuam tshuam. Lub hauv paus ntsiab lus no tau thov hauv qhov kho qhov muag pom, thiab ua raws li lub lens tshwj xeeb thiab lim, kom lub sensor muaj peev xwm paub ze-infrared (780 ~ 1000nm), thiab txhim kho daim duab kom meej meej los ntawm lub hauv paus los ntawm optically.
Tab sis vim hais tias infrared yog qhov muag tsis pom, nws dhau dhau qhov ntawm daim duab ua haujlwm nti, yog li tsuas yog cov duab dub thiab dawb tuaj yeem tau txais.
E-defog
Electronic defog yog kev siv cov txheej txheem ua duab los txhim kho cov duab. Muaj ntau qhov kev siv ntawm hluav taws xob-defog.
Piv txwv, cov txheej txheem tsis siv qauv siv tau los txhim kho qhov kev sib piv ntawm cov duab, thiaj li txhim kho qhov pom kev pom. Tsis tas li ntawd, muaj cov qauv tsim kho cov duab rov qab los, uas kawm txog cov laj thawj ntawm cov qauv duab tsis zoo thiab cov duab tsis zoo, ua qauv txheej txheem kev xeb, thiab siv cov kev rov ua dua qub kom nws thiaj li rov ua tau cov duab. Qhov hluav taws xob-defog nyhuv yog qhov tseem ceeb, vim tias feem ntau qhov laj thawj rau qhov hazy tshwm sim ntawm cov duab muaj feem xyuam rau kev daws teeb meem ntawm lub lens nws tus kheej thiab cov duab ua cov algorithm ntxiv nrog rau qhov huab.
Kev tsim cov khoom siv defog
Thaum ntxov li xyoo 2012, lub block zoom lub koob yees duab module SC120 los ntawm Hitachi muaj qhov ua haujlwm ntawm defog. Tsis ntev, Sony, Dahua, Hivision, thiab lwm yam kuj tau tsim cov khoom lag luam zoo sib xws nrog hluav taws xob-defog. Tom qab ob peb xyoos ntawm txoj kev loj hlob, cov thev naus laus zis-thev naus laus zis tau maj mam hloov zuj zus lawm. Nyob rau hauv xyoo tas los, Lens cov tuam ntxhab muaj kev sib raug zoo nrog cov tuam ntxhab cov koob yees duab, thiab muaj kev vam meej ua tiav ntau yam ntawm optical-defog khoom.
Kev daws los ntawm Saib Sheen
Viewsheen tau tsim tawm ntawm lub koob yees duab zoom lub teeb tsa nruab nrog qauv super defog (kho qhov muag + hluav taws xob). Txhawm rau kom tau txais kev ua tau zoo tshaj plaws ntawm defog. Txoj kev kho qhov muag + siv hluav taws xob tau siv los ua qhov zoo tshaj plaws los ntawm qhov pom kev mus rau tom qab kawg kev ua haujlwm. Cov khoom siv kho qhov muag yuav tsum tso tawm kom muaj teeb pom kev ntau npaum li qhov ua tau kom dhau los, yog li lub qhov loj aperture, lub ntsuas qhov loj thiab qhov lim nrog qhov cuam tshuam zoo los cuam tshuam yuav tsum xav txog kev nkag siab. Qhov kev txiav txim siab yuav tsum yog nyob ntawm cov xwm txheej xws li qhov deb ntawm qhov khoom thiab qhov siv ntawm qhov huab, thiab xaiv cov qib ntawm defog, txo lub suab nrov los ntawm kev ua cov duab.


Sijhawm Post: Dec-22-2020