Mu polojekiti ya CCTV yowunikira, nthawi zambiri timafunika kugwiritsa ntchito chojambulira makanema.Mitundu yodziwika bwino ya makanema ojambula ndi DVR ndi NVR.Choncho, pamene khazikitsa, tiyenera kusankha DVR kapena NVR.Koma kodi mukudziwa kusiyana kwake?
DVR kujambula zotsatira zimadalira kutsogolo-mapeto kamera ndi DVR yekha psinjika aligorivimu ndi Chip processing mphamvu, pamene NVR kujambula zotsatira zimadalira makamaka kutsogolo-mapeto IP kamera, chifukwa linanena bungwe la IP kamera ndi digito wothinikizidwa kanema.Chizindikiro cha kanema chikafika pa NVR, sichifuna kutembenuka kwa analogi-to-digital ndi kukanikiza, ingosungani, ndipo tchipisi tating'ono ting'onoting'ono timafunika kumaliza ntchito yonseyo.
DVR
DVR amatchedwanso digito kanema wolemba kapena digito kwambiri litayamba wolemba.Tinkachitcha kuti chojambulira cha hard disk.Poyerekeza ndi chojambulira chamakono cha analogi, chimajambula kanema mu hard disk.Ndi makina apakompyuta osungira ndi kukonza zithunzi, zojambulira makanema kwanthawi yayitali, kuyang'anira kutali ndikuwongolera zithunzi / mawu.
DVR ili ndi maubwino angapo, poyerekeza ndi machitidwe azikhalidwe a analogi.DVR amagwiritsa ntchito luso lojambulira digito, lomwe ndi lapamwamba kwambiri kuposa analogi potengera khalidwe lachifanizo, mphamvu yosungira, kubwezeretsa, kubwezeretsa, ndi kutumiza mauthenga.Kuphatikiza apo, DVR ndiyosavuta kugwiritsa ntchito kuposa machitidwe a analogi, ndikuthandizira kuwongolera kwakutali.
Mtengo wa NVR
Makamera a IP adziwika kwambiri m'zaka zaposachedwa, chifukwa ali ndi maubwino angapo kuposa makamera achikhalidwe a CCTV.Chimodzi mwazabwino zazikulu ndikuti amatha kulumikizidwa ndi netiweki, yomwe imalola kuwonera kwakutali, kasamalidwe komanso kosavuta kukulitsa.
Dzina lathunthu la NVR ndi chojambulira makanema pa netiweki, idapangidwa kuti ilandire, kusunga ndikuwongolera makanema amakanema a digito kuchokera ku makamera a IP.Iyenera kulumikiza makamera a IP, sangagwire ntchito yokha.NVR ili ndi maubwino angapo pa DVR yachikhalidwe, kuphatikiza kuthekera kowonera ndikuwongolera makamera angapo nthawi imodzi, komanso kuthekera kofikira makamera kutali kuchokera kulikonse padziko lapansi kudzera pa Ethernet.Choncho kuzindikira ubwino anagawira Intaneti.
Ngati mukuganiza kukhazikitsa makamera a IP, ndiye kuti NVR ndi chida chofunikira kwambiri.Zidzakulolani kuti mugwiritse ntchito bwino phindu la makamera a IP, ndikuwonetsetsa kuti makina anu akugwira ntchito mokwanira komanso otetezeka.
Kusiyana pakati pa DVR ndi NVR
Kusiyana kwakukulu pakati pa DVR ndi NVR ndi mtundu wa makamera omwe amagwirizana nawo.DVR imagwira ntchito ndi makamera a analogi, pomwe NVR imagwira ntchito ndi makamera a IP.Kusiyana kwina n'chakuti DVRs amafuna aliyense kamera kuti chikugwirizana ndi DVR ntchito coaxial chingwe, pamene NVRs akhoza kulumikiza IP makamera ndi kufala opanda zingwe kapena waya Efaneti chingwe.
NVR imapereka maubwino angapo kuposa DVR.Choyamba, ndizosavuta kukhazikitsa ndikukonzekera.Chachiwiri, NVR imatha kujambula pamlingo wapamwamba kuposa DVR, kotero mupeza chithunzi chabwinoko.Pomaliza, NVR imapereka scalability bwino kuposa DVR;mutha kuwonjezera makamera ochulukirapo ku dongosolo la NVR, pomwe dongosolo la DVR lili ndi malire ndi kuchuluka kwa mayendedwe olowera pa DVR.
Nthawi yotumiza: Oct-13-2022