Raws li ib feem tseem ceeb ntawm cov txheej txheem kev ruaj ntseg, kev ua haujlwm ntawmCov tsom iav CCTVncaj qha cuam tshuam rau qhov kev saib xyuas, thiab lawv cov kev ua tau zoo feem ntau yog cuam tshuam los ntawm cov qauv tseem ceeb. Yog li ntawd, kev nkag siab txog cov qauv ntawm CCTV lens yog qhov tseem ceeb.
1.Kev tshuaj xyuas cov yam ntxwv tseem ceeb ntawmCov tsom iav CCTV
(1)Fqhov ntev ntawm lub qhov ncauj
Qhov ntev ntawm lub lens yog ib qho ntawm cov yam ntxwv tseem ceeb ntawm lub lens, txiav txim siab qhov loj ntawm lub zeem muag, uas yog, lub kaum sab xis ntawm qhov pom thiab kev loj hlob ntawm daim duab saib xyuas. Feem ntau, qhov ntev ntawm lub lens me dua, qhov dav ntawm lub zeem muag (lub kaum sab xis dav), thiab qhov ze dua qhov kev soj ntsuam, tsim nyog rau kev soj ntsuam cov xwm txheej dav dav ntawm qhov ze, xws li qhov nkag thiab tawm; qhov ntev ntawm lub lens loj dua, qhov dav ntawm lub zeem muag (telephoto) me dua, thiab qhov deb ntawm qhov kev soj ntsuam, tsim nyog rau kev soj ntsuam cov duab ze ntawm qhov deb.
Feem ntau, cov tsom iav CCTV muaj ob txoj kev xaiv qhov ntev ntawm lub lens: qhov ntev ntawm lub lens ruaj khov (qhov ntev ntawm lub lens ruaj khov) thiab qhov ntev ntawm lub lens hloov pauv (qhov ntev ntawm lub lens zoom). Cov hom ntev ntawm lub lens sib txawv yog tsim rau ntau qhov xwm txheej siv. Piv txwv li, cov tsom iav ruaj khov muaj qhov ntev ntawm lub lens ruaj khov thiab qhov pom kev ruaj khov, ua rau lawv tsim nyog rau kev saib xyuas txhua hnub hauv cov xwm txheej ruaj khov.
(2)Qhov qhib
Qhov loj ntawm lub lens aperture cuam tshuam rau qhov ntau ntawm lub teeb hla dhau nws. Lub aperture loj tso cai rau ntau lub teeb, ua rau nws tsim nyog rau cov chaw muaj teeb pom kev tsawg tab sis ua rau muaj qhov tob ntawm thaj chaw me me. Lub aperture me me tso cai rau lub teeb tsawg dua, ua rau muaj qhov tob ntawm thaj chaw loj, tsim nyog rau cov teeb pom kev ci lossis cov xwm txheej uas xav tau qhov ntse tag nrho.
Koj kuj xaiv tau qhov aperture ntawm koj lub koob yees duab los yog koj xaiv tau yam tsis tas siv tes. Feem ntau, qhov aperture ntawm koj lub koob yees duab siv tes yog qhov zoo rau tej yam uas muaj teeb pom kev zoo tsis tu ncua (xws li tej yam sab nraum zoov).
Qhov loj ntawm lub qhov (aperture) cuam tshuam rau qhov nrawm ntawm kev hla dhau
(3)Qhov loj ntawm lub sensor
Qhov loj ntawm lub sensorlub lens, xws li 1/1.8″ lossis 1/2.7″, yuav tsum phim qhov loj ntawm lub koob yees duab kom tsis txhob muaj teeb meem kev thaij duab uas yuav ua rau qhov zoo ntawm kev saib xyuas tsis zoo.
(4)Thaj chaw pom
Lub tshav pom kev kuj yog ib qho tseem ceeb ntawm cov iav saib xyuas kev ruaj ntseg, txiav txim siab qhov ntau thiab tsawg ntawm lub tshav pom kev uas lub lens tuaj yeem npog. Nws muab faib ua kab rov tav, ntsug thiab kab pheeb ces kaum. Lub tshav pom kev feem ntau yog sib piv rau qhov ntev ntawm lub lens; qhov ntev ntawm lub lens loj dua, qhov pom kev me dua. Rau tib lub sijhawm ntev ntawm lub lens, qhov loj ntawm lub sensor, qhov pom kev loj dua.
(5)Kev daws teeb meem
Qhov kev daws teeb meem ntawm lub lens txiav txim siab qhov ntse ntawm daim duab. Hauv qhov xwm txheej ib txwm muaj, qhov kev daws teeb meem ntawm lub lens yuav tsum phim qhov kev daws teeb meem ntawm lub koob yees duab sensor. Cov lens daws teeb meem siab tuaj yeem muab cov duab thiab cov yeeb yaj kiab meej dua, tsim nyog rau cov xwm txheej uas xav tau kev saib xyuas siab; thaum cov lens daws teeb meem qis tuaj yeem ua rau cov duab siab tsis meej.
(6) Roobhom
Cov tsom iav CCTV feem ntau muaj C-mount, CS-mount, thiab M12-mount. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias hom tsom iav uas xaiv yuav tsum sib xws nrog hom tsom iav ntawm lub koob yees duab.
CCTV lens muaj ntau hom mount
2.Cov ntsiab lus tseem ceeb rau kev xaivLub lens CCTVs
Kev xaiv ntawmCov tsom iav CCTVyuav tsum xav txog cov yam xws li lub hom phiaj saib xyuas, cov kev cai ntawm lub kaw lus, thiab cov xwm txheej ib puag ncig, thiab yuav tsum ua raws li cov ntsiab lus tseem ceeb no:
(1)Xaiv raws li qhov xwm txheej ntawm lub hom phiaj saib xyuas
Thaum xaiv cov tsom iav CCTV, yuav tsum xav txog tej yam xws li qhov deb thiab qhov chaw ntawm lub hom phiaj. Kev xaiv qhov ntev ntawm lub tsom iav kom haum yuav ua kom thaj chaw saib xyuas zoo. Piv txwv li, cov tsom iav siv rau kev saib xyuas txoj kev xav tau qhov ntev ntawm lub tsom iav ntev dua, thaum cov tsom iav siv rau kev saib xyuas kab ntau lawm xav tau qhov ntev ntawm lub tsom iav luv dua.
(2)Xaiv raws li cov teeb pom kev zoo ntawm thaj chaw saib xyuas
Cov xwm txheej teeb pom kev zoo hauv thaj chaw uas tau saib xyuas muaj feem cuam tshuam rau kev xaiv lub lens. Hauv cov chaw uas muaj lub teeb pom kev zoo lossis muaj kev hloov pauv me ntsis ntawm lub teeb, xws li cov chaw sab hauv tsev, lub lens qhib tes feem ntau yog qhov tsim nyog. Hauv cov chaw sab nraum zoov uas muaj kev hloov pauv ntawm lub teeb ntau, lub lens qhib tsis siv neeg yog qhov zoo dua. Rau cov chaw uas muaj teeb pom kev zoo tsawg thiab lub teeb tsis muaj zog, lub lens uas muaj qhov qhib loj dua yog qhov zoo dua; rau cov chaw uas muaj teeb pom kev zoo, lub lens uas muaj qhov qhib me dua yog qhov zoo dua.
(3)Xaiv raws li qhov ntev ntawm lub koob yees duab
Qhov loj ntawm lub lens sensor, qhov kev daws teeb meem, thiab lwm yam kev teeb tsa yuav tsum phim lub koob yees duab lub sensor loj. Piv txwv li, lub koob yees duab uas muaj 1/2 nti sensor yuav tsum phim nrog lub lens uas muaj 1/2 nti sensor, thiab lub koob yees duab uas muaj 4K pixels yuav tsum phim nrog lub lens uas muaj 8 megapixels lossis ntau dua.
(4)Xaiv raws li qhov tsim nyog ntawm qhov chaw siv
Kev xaiv ntawmCov tsom iav CCTVkuj yuav tsum tau ua raws li qhov chaw siv kom ntseeg tau tias lub lens tuaj yeem hloov kho raws li qhov xav tau ntawm ib puag ncig. Piv txwv li, cov lens siv hauv txoj kev loj, thaj chaw roob, thiab lwm yam, yuav tsum tau xaiv uas tuaj yeem nkag mus rau hauv cov pos huab; cov lens siv sab nraum zoov lossis hauv thaj chaw muaj kev pheej hmoo siab yuav tsum tau xaiv nrog cov qib kev tiv thaiv siab xws li tiv thaiv dej thiab plua plav, thiab kuj tseem yuav xav tau lub tsev tiv thaiv kev puas tsuaj.
Xaiv cov tsom iav CCTV raws li lawv qhov haum rau qhov chaw siv
(5)Xaiv raws li kev teeb tsa thiab kev saib xyuas
Cov tsom iav CCTV kuj tseem tuaj yeem xaiv tau raws li qhov xwm txheej ntawm kev teeb tsa. Piv txwv li, cov tsom iav tsom iav raug xaiv rau kev teeb tsa ruaj khov hauv ib qho chaw vim tias lawv muaj kev ruaj khov siab thiab tus nqi qis. Rau cov tsom iav siv hauv cov chaw thauj mus los uas xav tau kev tswj chaw taws teeb ua ke nrog cov koob yees duab PTZ, cov tsom iav zoom uas muaj lub cev muaj zog feem ntau raug pom zoo vim tias lawv muab kev tswj chaw taws teeb yooj yim dua.
3.Cov xwm txheej ntawm daim ntawv thov ib txwm muajCov tsom iav CCTV
Cov tsom iav CCTV muaj ntau yam kev siv, suav nrog kev nyab xeeb rau pej xeem, kev thauj mus los, kev lag luam, kev lag luam, thiab ntau lwm yam. Hauv qab no yog qee qhov xwm txheej siv tau:
(1)Kev saib xyuas thaj chaw tseem ceeb sab hauv tsev
Cov tsom iav CCTVFeem ntau siv rau kev saib xyuas sab hauv tsev. Kev xaiv lub lens sib txawv nyob ntawm qhov xav tau tshwj xeeb ntawm cov chaw sab hauv tsev sib txawv. Piv txwv li, hauv cov chaw sab hauv tsev xws li chaw ua haujlwm thiab chav sib tham, qhov twg xav tau kev saib xyuas tsis muaj qhov muag tsis pom thaum tseem tiv thaiv kev ceev ntiag tug, cov lens dav dav feem ntau raug xaiv los ntes cov duab meej nrog thaj chaw pom dav. Kev teeb tsa kuj yuav tsum xav txog kev zais thiab kev zoo nkauj. Rau cov chaw sab hauv tsev loj dua xws li cov khw muag khoom thiab cov khw muag khoom loj, qhov twg kev saib xyuas yuav tsum tau npog cov chaw tseem ceeb xws li cov tshuab sau nyiaj, txee, thiab txoj kev, thiab tseem xav tau kev ntes thiab taug qab cov neeg ua haujlwm, cov lens siab daws teeb meem, qhov loj-qhov, dav-lub kaum sab xis ruaj khov-tsom iav feem ntau raug xaiv los xyuas kom meej tias tsis muaj qhov muag tsis pom. Rau kev saib xyuas cov chaw kaw hauv tsev xws li lub tshuab nqa thiab ntaiv, cov lens fisheye dav dav feem ntau yog siv rau kev saib xyuas panoramic kom ntseeg tau tias muaj kev npog tag nrho.
Cov tsom iav CCTV feem ntau siv rau kev saib xyuas sab hauv tsev
(2)Kev saib xyuas qhov chaw pej xeem loj
Rau kev soj ntsuam hauv cov chaw pej xeem loj xws li chaw nres tsheb ciav hlau, tshav dav hlau, thiab cov khw loj, nws yog qhov tsim nyog los saib xyuas cov neeg coob coob thiab txheeb xyuas cov xwm txheej tsis zoo thiab xwm txheej ceev. Cov iav dav dav thiab cov iav zoom feem ntau siv ua ke kom ntseeg tau tias muaj kev npog dav thiab muaj peev xwm ntes cov ntsiab lus.
(3)Kev tswj hwm thiab kev saib xyuas tsheb khiav
Rau kev tswj hwm kev tsheb khiav, kev saib xyuas yuav tsum tau npog thaj chaw xws li txoj kev ib txwm muaj, kev sib tshuam, thiab qhov av. Nws yuav tsum tau saib xyuas kev khiav tsheb, ntes kev ua txhaum cai, thiab saib xyuas kev sib tsoo. Nws feem ntau yuav tsum tau siv cov iav telephoto kom ntseeg tau tias kev ntes deb. Thaum hmo ntuj lossis thaum huab cua phem, cov iav kuj yuav tsum muaj cov haujlwm kho infrared, yog li muaj kev xav tau ntau rau cov iav thaum nruab hnub thiab hmo ntuj.
(4)Kev saib xyuas kev ruaj ntseg hauv nroog
Kev saib xyuas kev ruaj ntseg niaj hnub hauv cov nroog ib txwm muaj, suav nrog kev saib xyuas hauv cov xwm txheej ib txwm muaj xws li txoj kev, chaw ua si, thiab cov zej zog, feem ntau siv cov iav uas muaj peev xwm saib xyuas 24/7, kev paub lub ntsej muag, thiab kev tshuaj xyuas tus cwj pwm. Cov iav Fisheye thiabcov iavnrog infrared muaj peev xwm feem ntau siv.
Cov tsom iav CCTV feem ntau siv rau kev saib xyuas hauv nroog niaj hnub
(5)Kev lag luam thiabpkev tsim khoommkev saib xyuas
Hauv kev tsim khoom lag luam, CCTV lens feem ntau yog siv los saib xyuas cov kab ntau lawm thiab cov khoom siv ua haujlwm, kev nyab xeeb ntawm cov neeg ua haujlwm, thiab lwm yam, los txhim kho kev ua haujlwm zoo thiab kev nyab xeeb. Ntau hom lens sib txawv, xws li telephoto lens thiab zoom lens, tuaj yeem xaiv rau ntau thaj chaw saib xyuas.
(6)Ntsehome thiabhomeskev ruaj ntsegmkev saib xyuas
Muaj ntau tsev neeg siv cov khoom siv hauv tsev ntse xws li kev tswj kev nkag mus rau hauv tsev ntse thiab lub tswb qhov rooj video, thiab lawv kuj tseem tab tom teeb tsa cov koob yees duab saib xyuas hauv lawv lub tsev. Cov koob yees duab saib xyuas hauv tsev no feem ntau siv cov iav pinhole, cov iav fixed-focus, thiab lwm hom iav.
(7)Tshwj xeebeib puag ncigmkev saib xyuas
Hauv qee qhov chaw tshwj xeeb, xws li kev tiv thaiv hluav taws kub hauv hav zoov, thaj chaw ciam teb, thiab cov chaw khaws cia tsiaj qus, yuav tsum tau saib xyuas deb thiab txhua huab cua, uas feem ntau siv cov iav telephoto, cov iav infrared, thiab lwm hom iav.
Xaus lus,Cov tsom iav CCTVsiv rau yuav luag txhua yam ntawm peb txoj haujlwm thiab lub neej txhua hnub, muab kev tiv thaiv zoo rau kev nyab xeeb thiab kev ruaj ntseg hauv zej zog. Nrog rau kev txhim kho thev naus laus zis, cov koob yees duab saib xyuas kev ruaj ntseg yuav txuas ntxiv mus rau kev hloov kho tshiab, txav mus rau qhov ntse dua thiab muaj ntau yam haujlwm.
Cov Lus Xaus:
Los ntawm kev ua haujlwm nrog cov kws tshaj lij ntawm ChuangAn, ob qho tib si tsim thiab tsim khoom yog ua los ntawm cov kws ua haujlwm txawj ntse. Raws li ib feem ntawm cov txheej txheem yuav khoom, tus neeg sawv cev ntawm lub tuam txhab tuaj yeem piav qhia ntxiv txog cov ntaub ntawv tshwj xeeb txog hom lens uas koj xav yuav. ChuangAn cov khoom siv lens siv rau ntau yam kev siv, los ntawm kev saib xyuas, kev luam theej duab, drones, tsheb mus rau cov tsev ntse, thiab lwm yam. ChuangAn muaj ntau hom lens tiav lawm, uas kuj tuaj yeem hloov kho lossis kho raws li koj xav tau. Tiv tauj peb sai li sai tau.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-19-2025
