Amakhamera we-Analog CCTV

Kuze kube manje, ngezinjongo zokuphepha, ukuhlolwa kwevidiyo kwenziwa ngezinhlobo ezimbili zamakhamera - idijithali ne-analog. Idijithali ngabalandeli be-analog, kepha abokugcina abalahlekelwa ukuthandwa kwabo kuze kube yilolu suku. Leli phepha liphathelene namakhamera we-analog CCTV.

Zisebenza kanjani?

I-lens yekhamera yevidiyo idonsa ukukhanya kokukhanya futhi iyayihlinzekela kumatrikhi we-CCD, iguqula ibe isignali kagesi futhi iyithumele eceleni kwekhebula kudivayisi elamukelayo. Ama-cameras wokuhlola amavidiyo we-Analog ahlukile kunombhalo wedijithali ngokuthi awaguqulwa isignali kagesi ibe ikhodi kanambambili, kodwa uyithumele kumshini wokurekhoda ngendlela engashintshi. Lokhu kwenza kube lula ukwenza inqubo yokuqapha futhi hhayi ukucubungula isignali kwikhompyutha. Kumele ngithi ikhamera enjalo ingaxhunyaniswa kumguquli wedijithali futhi ithole isignali kusuka kumakhamera amaningi wevidiyo.

Amadivaysi alolu hlobo akwazi ukuhambisa isithombe kunethiwekhi kunoma yikuphi emhlabeni, futhi ngesikhathi esisodwa ezindaweni eziningana, ukubonisa ezihlolweni eziningana ngesikhathi esisodwa. Kulokhu, kusetshenziselwa i-multiplexer eyenza isignali yevidiyo ibe ngabaqaphi abaningi.

Izici zekhamera ze-analog ze-CCTV:

1. Imvume . Iphansi iphinde i-480 TVL, isilinganiso singama-480-540 i-TVL, futhi eliphezulu liyi-540-700 i-TVL nangaphezulu. Ikhamera ye-Analog ye-CCTV yesinqumo esiphezulu yenza kube lula ukuhlukanisa ubuso babantu abadlulayo kanye namapuleti welayisense wezimoto endaweni ebanzi kakhulu. Iqiniso ne-DVR kulokhu kuyadingeka ukuthi ufake ukuqina okunamandla.
2. Izithombeensitivity . I-1.5 lux esheshayo isetshenziselwa ukudubula ekukhanyeni kwelanga elikhanyayo. Iphezulu kunazo zonke ezingu-0.001 lux ingasebenza ngaphansi kwanoma yikuphi ukukhanya.
3. Izici ze-lens . I-F2.8 ihlanganisa i-angle yokubukwa kwama-degree angu-90, futhi i-F 16 - ayikho ama-degree angama-5.

Okuthandwa kakhulu yi-analog CCTV amakhamera ama-RVI, amamodeli wakamuva anesinqumo esiphezulu, akwazi ukudlulisela isignali ibanga elingamamitha angaba ngu-500, izikhathi ezingu-20 ukwandisa isithombe nokudubula ngisho nasebumnyameni, kungekho mthombo wokukhanya ode ibanga elingamamitha ayi-100. I-IR-spotlight ingafihliwe ngendaba futhi ifake ikhamera eceleni komgwaqo noma umgwaqo omkhulu. Amakhamera we-Analog ahlinzeka ukusebenzisana kwezinqubo ezihlukahlukene ezivela kubakhiqizi abahlukene, kulula ukuhlangana nokwenza ngokwezifiso. Idivayisi ithatha ngokuphelele konke futhi inezindleko eziphansi.