Hauv qhov project CCTV system, peb feem ntau yuav tsum siv lub kaw lus video.Feem ntau hom kev kaw video yog DVR thiab NVR.Yog li, thaum txhim kho, peb yuav tsum xaiv DVR lossis NVR.Tab sis koj puas paub qhov txawv li cas?
DVR cov ntaubntawv povthawj siv yog nyob ntawm lub koob yees duab pem hauv ntej thiab DVR tus kheej compression algorithm thiab nti ua lub peev xwm, thaum NVR cov ntaubntawv povthawj siv feem ntau yog nyob ntawm lub koob yees duab pem hauv ntej-kawg IP, vim tias cov zis ntawm IP lub koob yees duab yog digital compressed video.Thaum lub teeb liab video mus txog NVR, nws tsis xav tau analog-rau-digital conversion thiab compression, cia li khaws cia, thiab tsuas yog ob peb lub chips yuav tsum tau ua kom tiav tag nrho cov txheej txheem.
DVR
DVR tseem hu ua digital video recorder lossis digital hard disk recorder.Peb tau hu nws lub hard disk recorder.Piv nrog rau cov tsoos analog video recorder, nws sau cov yeeb yaj duab rau hauv lub hard disk.Nws yog lub khoos phis tawj rau cov duab khaws cia thiab ua haujlwm, nrog rau kev kaw video ntev, saib xyuas cov chaw taws teeb thiab tswj cov duab / suab ua haujlwm.
DVR muaj ib tug xov tooj ntawm qhov zoo, piv nrog cov tsoos analog soj ntsuam systems.DVR siv cov cuab yeej kaw lus digital, uas yog qhov zoo tshaj plaws rau analog ntawm cov duab zoo, muaj peev xwm khaws cia, rov qab, thaub qab, thiab kev sib txuas hauv network.Tsis tas li ntawd, DVR yooj yim rau kev khiav lag luam dua li cov tshuab analog, thiab txhawb kev tswj chaw taws teeb.
NVR
IP koob yees duab tau dhau los ua neeg nyiam nyob rau xyoo tas los no, vim tias lawv muaj ntau qhov zoo dua li cov koob yees duab CCTV.Ib qho ntawm cov txiaj ntsig tseem ceeb yog tias lawv tuaj yeem txuas nrog lub network, uas tso cai rau kev saib cov chaw taws teeb, kev tswj hwm thiab kev nthuav dav yooj yim.
NVR lub npe tag nrho yog network video recorder, nws yog tsim los kom tau txais, khaws thiab tswj cov kwj video digital los ntawm IP koob yees duab.Nws yuav tsum tau txuas lub koob yees duab IP, tsis tuaj yeem ua haujlwm ib leeg.NVR muaj ntau cov txiaj ntsig zoo dua li DVR ib txwm muaj, suav nrog kev muaj peev xwm saib thiab tswj ntau lub koob yees duab tib lub sijhawm, thiab muaj peev xwm nkag mus rau cov koob yees duab los ntawm txhua qhov chaw hauv ntiaj teb los ntawm Ethernet.Yog li paub qhov zoo ntawm kev faib network.
Yog tias koj tab tom xav txog kev txhim kho IP koob yees duab, ces NVR yog ib qho tseem ceeb ntawm cov khoom siv.Nws yuav tso cai rau koj siv tag nrho cov txiaj ntsig ntawm IP koob yees duab, thiab xyuas kom meej tias koj lub cev ua haujlwm tau zoo thiab ruaj ntseg.
Qhov txawv ntawm DVR thiab NVR
Qhov sib txawv tseem ceeb ntawm DVR thiab NVR yog hom koob yees duab uas lawv sib haum nrog.DVR tsuas yog ua haujlwm nrog cov koob yees duab analog, thaum NVR ua haujlwm nrog IP koob yees duab.Lwm qhov sib txawv yog tias DVRs xav kom txhua lub koob yees duab txuas nrog DVR siv lub coaxial cable, thaum NVRs tuaj yeem txuas rau IP lub koob yees duab los ntawm kev xa xov wireless lossis xaim Ethernet cable.
NVR muaj ntau qhov zoo dua DVR.Ua ntej, lawv yooj yim dua los teeb tsa thiab teeb tsa.Qhov thib ob, NVR tuaj yeem kaw qhov kev daws teeb meem siab dua li DVR, yog li koj yuav tau txais cov duab zoo dua.Thaum kawg, NVR muaj qhov ua tau zoo dua li DVR;Koj tuaj yeem yooj yim ntxiv ntau lub koob yees duab rau NVR system, thaum DVR system raug txwv los ntawm tus naj npawb ntawm cov tswv yim ntawm DVR.
Post lub sij hawm: Oct-13-2022