Dab tsi yog qhov txawv ntawm CCTV thiab lub koob yees duab kev ruaj ntseg? Qhov no yog ib lo lus nug uas ntau tus neeg nug thaum sim xaiv qhov kev soj ntsuam zoo rau lawv lub tsev lossis kev lag luam. Hauv tsab xov xwm no, peb yuav nkag mus tob rau hauv cov ncauj lus no, tshawb txog qhov sib txawv tseem ceeb ntawm CCTV thiab lub koob yees duab kev ruaj ntseg, lawv cov yam ntxwv tshwj xeeb, thiab cov txiaj ntsig.
**Kev txhais
Ua ntej, cia peb txhais seb CCTV thiab lub koob yees duab kev ruaj ntseg yog dab tsi, ntsig txog. CCTV stands rau "Closed Circuit Television" thiab hais txog ib qho kev soj ntsuam video uas siv cov koob yees duab los ntes cov duab, uas tom qab ntawd xa mus rau cov neeg saib lossis cov kaw lus tsawg. Ntawm qhov tod tes, cov koob yees duab kev ruaj ntseg yog ib lo lus dav dav uas suav nrog txhua hom koob yees duab tsim los rau kev ruaj ntseg, uas tuaj yeem yog xov tooj lossis wireless.
** Kev teeb tsa thiab teeb tsa
Thaum nws los txog rau kev teeb tsa thiab teeb tsa, muaj qhov sib txawv tseem ceeb ntawm CCTV thiab lub koob yees duab kev ruaj ntseg. CCTV koob yees duab xav tau kev sib txuas ntau dua thiab kev tsim kho vaj tse vim lawv feem ntau hardwired thiab txuas nrog lub hauv paus tswj hwm. Qhov no txhais tau tias kev teeb tsa yuav tsum muaj kev npaj tseem ceeb thiab kev txawj ntse. Tsis tas li ntawd, CCTV koob yees duab feem ntau yog siv rau kev soj ntsuam loj dua, xws li cov tsev lag luam lossis chaw pej xeem.
Cov koob yees duab kev ruaj ntseg, ntawm qhov tod tes, feem ntau yog qhov yooj yim dua rau kev teeb tsa thiab teeb tsa, vim lawv tsis tas yuav muaj kev tswj hwm lossis kev sib txuas lus zoo. Ntau lub koob yees duab kev ruaj ntseg yog wireless, tsuas yog ib lub hwj chim uas xav tau rau kev ua haujlwm. Qhov no txhais tau tias cov tswv tsev tuaj yeem yooj yim nruab DIY lub koob yees duab kev ruaj ntseg, thiab teeb tsa feem ntau siv sijhawm li ob peb feeb xwb.
**Field of View
Lwm qhov sib txawv tseem ceeb ntawm CCTV thiab lub koob yees duab kev ruaj ntseg yog lawv qhov kev pom. CCTV koob yees duab tuaj yeem npog thaj tsam loj dua li lawv tau tsim los ntes cov duab los ntawm qhov chaw ruaj khov. Qhov no yog qhov ua tau vim yog siv PTZ (yias-tilt-zoom) lub koob yees duab uas tuaj yeem txav lawv cov lo ntsiab muag los saib xyuas thaj chaw tseem ceeb.
Cov koob yees duab kev ruaj ntseg kuj tuaj yeem muaj peev xwm PTZ, tab sis lawv qhov kev pab them nqi feem ntau yog txwv, raws li lawv tau tsim los saib xyuas cov chaw tshwj xeeb. Qhov zoo dua yog tias lawv tuaj yeem muab tso rau yuav luag txhua qhov chaw, nrog rau ntawm phab ntsa, qab nthab, thiab rooj tog zaum.
** Duab Zoo
Cov duab zoo yog qhov tseem ceeb uas yuav tsum xav txog thaum xaiv ntawm CCTV thiab lub koob yees duab kev ruaj ntseg. CCTV koob yees duab feem ntau muab cov duab daws teeb meem siab dua thiab cov yeeb yaj kiab vim lawv cov khoom siv tau zoo dua. Tsis tas li ntawd, CCTV koob yees duab feem ntau muaj cov yam ntxwv tshwj xeeb xws li pom kev hmo ntuj, uas yog qhov zoo rau kev soj ntsuam daim ntawv thov.
Lub koob yees duab kev ruaj ntseg, ntawm qhov tod tes, muaj kev daws teeb meem qis dua thiab tuaj yeem tawm tsam thaum lub teeb pom kev tsawg. Qhov ntawd tau hais tias, kev nce qib hauv thev naus laus zis tau ua rau muaj kev daws teeb meem siab dua rau lub koob yees duab kev ruaj ntseg, thiab ntau tus qauv tam sim no tuaj yeem tsim cov duab zoo nkauj zoo li lawv cov CCTV counterparts.
** Cia thiab Archiving
Kev khaws cia thiab khaws cia yog qhov tseem ceeb rau txhua qhov kev soj ntsuam. CCTV koob yees duab feem ntau ua haujlwm ntawm ib lub xov tooj txuas nrog cov chaw khaws cia uas cov duab khaws cia thiab khaws cia. Qhov no ua kom cov duab tuaj yeem nkag tau yooj yim los ntawm cov neeg ua haujlwm tau tso cai thaum xav tau.
Cov koob yees duab kev ruaj ntseg, txawm li cas los xij, feem ntau ua haujlwm ntawm lub wireless network thiab khaws cov duab hauv huab lossis ntawm daim npav nco sab nraud. Qhov no txhais tau hais tias cov tswv tsev tuaj yeem nkag tau cov duab los ntawm txhua qhov chaw nrog kev sib txuas hauv internet. Ntxiv mus, huab cia feem ntau muab qhov tsis muaj qhov txwv ntawm qhov chaw cia.
** Nqi
Tus nqi yog tej zaum qhov tseem ceeb tshaj plaws los xav txog thaum xaiv ntawm CCTV thiab lub koob yees duab kev ruaj ntseg. CCTV koob yees duab feem ntau kim dua vim lawv cov khoom zoo dua thiab cov cuab yeej tshwj xeeb. Tsis tas li ntawd, cov nqi installation feem ntau xav tau kev pab tshaj lij, ntxiv rau tag nrho cov nqi.
Cov koob yees duab kev ruaj ntseg, txawm li cas los xij, feem ntau pheej yig dua, nrog ntau tus qauv pib ntawm ob peb puas duas las. Ntxiv mus, ntau lub koob yees duab kev ruaj ntseg tam sim no tsis tas yuav muaj kev txhim kho, uas tuaj yeem txo cov nqi tag nrho.
** Lus xaus
Hauv kev xaus, ob qho tib si CCTV thiab lub koob yees duab kev ruaj ntseg muaj lawv qhov tshwj xeeb zoo thiab qhov tsis zoo, thiab kev xaiv txoj cai yuav nyob ntawm koj qhov kev xav tau tshwj xeeb thiab cov kev xav tau.
CCTV koob yees duab yog qhov zoo tagnrho rau daim ntawv thov kev soj ntsuam loj dua, muab cov duab daws teeb meem siab dua, thiab zoo dua rau qhov chaw ruaj khov thiab cov ntawv thov saib xyuas tseem ceeb.
Cov koob yees duab kev ruaj ntseg, ntawm qhov tod tes, yog pheej yig dua, yooj yim rau nruab, thiab yuav tsum tsis muaj kev sib txuas lus. Tsis tas li ntawd, ntau lub koob yees duab kev ruaj ntseg tam sim no muab cov duab daws teeb meem siab thiab cov yam ntxwv zoo li huab cia.
Zuag qhia tag nrho, ob qho tib si CCTV thiab lub koob yees duab kev ruaj ntseg tau los ntev heev ntawm kev siv thev naus laus zis, thiab kev txiav txim siab yuav nqis los rau tus kheej nyiam thiab nyiaj txiag. Txawm koj xaiv qhov system twg los xij, koj tuaj yeem tso siab tau tias koj lub tsev lossis kev lag luam yuav tau txais txiaj ntsig los ntawm kev ruaj ntseg thiab kev thaj yeeb nyab xeeb.
