Analogi makamera (CVBS, CCTV)

Mumunda wekuchengetedza vhidhiyo yekutarisa, analog uye dijitari, pamwe netiweki inoperekedzwa nemumwe.Makamera ekutanga ekuchengetedza ari analog (Analog), iyo inonzi analog, zvinoreva kuti vanotevedzera huwandu hwemuviri hunomiririra ruzha, ruzivo rwemufananidzo, chiratidzo chechiedza chechinangwa chiri kutorwa mifananidzo chinoshandurwa kuita chiratidzo chemagetsi, waveform yeanalog. chiratidzo chinotevedzera shanduko yeruzivo.Kupenya kwakasiyana kwechinhu chiri kutorwa mufananidzo kunoenderana nekupenya kwakasiyana kwakasiyana, ikozvino mune kamera yemagetsi chubhu ichachinja zvinoenderana.Chiratidzo cheAnalog ndiko kushandiswa kweshanduko iyi mune yazvino kumiririra kana kutevedzera mufananidzo wakabatwa, kurekodha maitiro avo ekuona, uyezve kuburikidza nemodulation uye demodulation, chiratidzo chinozoendeswa kune anogamuchira, chinoratidzwa pachiratidziro, chinodzoserwa kune yekutanga optical mufananidzo. .

Akajairwa analog makamera anogona kukamurwa kuita analog SD makamera uye analog HD makamera zvichienderana nekugadziriswa kwavo.Analog makamera anowanzo shandisa BNC zvibatanidza sevhidhiyo inobuda yekubatanidza.

CVBS Kamera

Analog SD kamera inozivikanwawo seCVBS kamera, iyo inodaidzwa kuti CVBS inoreva Composite Vhidhiyo Broadcast Signal, kureva, composite synchronous vhidhiyo nhepfenyuro chiratidzo.Iyo inotumira data mune analog waveform.Vhidhiyo inoumbwa ine chromatic aberration (hue uye saturation) uye kupenya (kupenya) ruzivo uye inoawiriranisa iwo mukupera simba pulse, inofambiswa nechiratidzo chimwe chete.

CVBS makamera anoshandisa TVLine (terevhizheni mutsara, TV line) kuyera kukwanisa kugadzirisa mifananidzo.Early CVBS analog makamera anogona kuwanikwa kuburikidza neBNC musoro analog yekutarisa yakananga vhidhiyo mifananidzo, uye kupinza kwemufananidzo pane ino analog yekutarisa ndiyo dhigirii reruzivo rwemitsetse yakatarisana nhema uye chena yakachinjika.Saka iyo analogi kamera kujeka kwechikamu chekuyera kunonzi zvakare TV Line, inozivikanwawo seTV Line (kureva, TVLine), dzimwe nguva inonziwo kujeka kwechigadziriso.Analog kamera resolution inowanzoedzwa neISO12233 Chart Card (Chati), uye nerubatsiro rwechitatu-bato maturusi, akadai ImaTest, HYRes, iSeetest uye imwe software kuverenga kukosha chaiko.Semuyenzaniso, mitsara mazana matanhatu nemakumi mashanu zvinoreva kuti kamera iyi inokwanisa kusiyanisa kusvika kumitsetse yakanyorwa pakadhi rekuongorora chati iri pedyo nekukosha kwe650.

CVBS kamera zvirongwa zvakawanda, musimboti wechirongwa chega chega iDSP uye sensor zvikamu zviviri.Yekutanga DSP chirongwa kunyanya Sony's SS-1 (2163), SS-11 (3141/2), SS-11X (4103), SS-HQ1 (3172), SS-2, Effio-E (SS4), Effio-P, Effio-A, Effio-V, etc.. Panasonic kuD5 kunyanya D4, D5 MN673276, Korea Samsung, NEXTCHIP processor, Taiwan's A-NOVA ADP series, etc .. Uye sesnor zvakare kunyanya kuna Sony, Panasonic, Samsung kunyanya.Iwo pamusoro akasiyana DSP uye sensor musanganiswa anogona kugadzirwa akasiyana kamera mhinduro.

Effio yakatevedzana inova Sony mune analog SD yekutarisa kamera nguva rwiyo rwekupedzisira."Effio" ndiyo "Enhanced Features uye Fine Image Processor" (Enhanced Features uye Fine Image Processor) acronym.Iyo yakanyanya kugadziriswa yeEffio yakatevedzana yakatenderedza 750 mitsara - 800 mitsara.Ichi ndicho chigadziriso chepamusoro chakambowanikwa neanalog SD kamera.Iyo yakajairika Effio kamera ine inoshanda pixel count ye 976 (horizontal) x 582 (yakatwasuka), saka inozivikanwawo se960H kamera (inoshanda pixels yakakura kupfuura 960 munzira yakachinjika).

The Effio series yakatangwa kutenderera 2009, uye Effio-P mhinduro yakaunzwa muna 2012. Mushure meizvozvo Sony ichanyanya kutarisa nezvekutsvaga nekuvandudza kuedza paCMOS, analogi SD makamera zvakare zvishoma nezvishoma anosvika kumagumo.

Analog HD kamera

Sony yakasiiwa CCD, chinangwa chikuru chichaendeswa kuCMOS ndechokuti mamiriro ekugadzirisa mamwe chete, mutengo weCMOS wakaderera zvikuru, uye yakakwirira yekugadzirisa, iyo yakakura kudarika mutengo, zvinoreva kuti CCD haina kukodzera kugadziriswa kwepamusoro. makamera ekuchengetedza.Chengetedzo makamera kuHD, chinhu chekutanga chinofanira kubviswa ndeye CCD sensor.

Tags:CCTV Kamera, CCTV Lens