Amakhamera we-Analog (CVBS, CCTV)

Emkhakheni wokubhekwa kwevidiyo yokuphepha, i-analog nedijithali, kanye nenethiwekhi ihambisana nomunye nomunye.Amakhamera okuqala okuphepha ayi-analog (Analog), okuthiwa i-analog, kusho ukuthi alingisa amanani abonakalayo amele umsindo, ulwazi lwesithombe, isignali yokukhanya yethagethi ethwetshulwayo iguqulwa ibe isignali kagesi, i-waveform ye-analog. isignali ilingisa ushintsho olwazini.Ukukhanya okuhlukile kwento ethwetshulwayo kuhambisana namanani ahlukene okukhanya, okwamanje kushubhu kagesi yekhamera kuzoshintsha ngokufanele.Isiginali ye-analog ukusetshenziswa kwalolu shintsho lwamanje ukumela noma ukulingisa isithombe esithwetshuliwe, ukurekhoda izici zaso zokubona, bese ngokushintshashintsha nokudilizwa, isiginali izodluliselwa kumamukeli, ekhonjiswe esikrinini, ibuyiselwe esithombeni sokuqala sokubonwa. .

Amakhamera we-analog ajwayelekile angahlukaniswa abe amakhamera we-analog SD kanye ne-analog HD amakhamera ngokuya ngokulungiswa kwawo.Amakhamera we-analog ngokuvamile asebenzisa izixhumi ze-BNC njengesixhumi esikhipha ividiyo.

Ikhamera ye-CVBS

Ikhamera ye-Analog SD yaziwa nangokuthi ikhamera ye-CVBS, okuthiwa i-CVBS ibhekisela ku-Composite Video Broadcast Signal, okungukuthi, isignali yokusakaza ividiyo ehlanganisiwe.Ihambisa idatha nge-analog waveform.Ividiyo eyinhlanganisela iqukethe i-chromatic aberration (imibala nokugcwaliswa kwesikhala) kanye nolwazi lokukhanya (ukukhanya) futhi ivumelanisa ngokushaya kwenhliziyo okufiphalayo, okudluliselwa ngesignali efanayo.

Amakhamera e-CVBS asebenzisa i-TVLine (umugqa wethelevishini, ulayini we-TV) ukukala ikhono lokuxazulula izithombe.Amakhamera e-analog e-CVBS asekuqaleni angafinyelelwa nge-BNC head analog monitor abonisa ngokuqondile izithombe zevidiyo, futhi ukucija kwesithombe kule qapha ye-analog empeleni kuyizinga lemininingwane yemigqa evundlile emnyama nemhlophe eseduze.Ngakho-ke ukucaca kwekhamera ye-analog yeyunithi yokulinganisa kubizwa nangokuthi Ulayini we-TV, owaziwa nangokuthi Ulayini we-TV (okungukuthi, i-TVLine), ngezinye izikhathi okubuye kubizwe ngakho njengokucaca kwesinqumo.Ukulungiswa kwekhamera ye-analogi ngokuvamile kuhlolwa Ikhadi Leshadi le-ISO12233 (Ishadi), nangosizo lwamathuluzi ezinkampani zangaphandle, njenge-ImaTest, HYRes, iSeetest namanye ama-software ukuze kufundwe inani langempela.Isibonelo, imigqa engu-650 isho ukuthi le khamera ingakwazi ukuhlukanisa kufikela emigqeni ephawulwe ekhadini leshadi lokuhlola eduze nenani elingu-650.

Izinhlelo zekhamera ye-CVBS ziningi, umnyombo wohlelo ngalunye yi-DSP kanye nezinzwa izingxenye ezimbili.Uhlelo lwangaphambi kwesikhathi lwe-DSP ikakhulukazi i-Sony SS-1 (2163), SS-11 (3141/2), SS-11X (4103), SS-HQ1 (3172), SS-2, Effio-E (SS4), Effio-P, I-Effio-A, i-Effio-V, njll. I-Panasonic kuya ku-D5 ikakhulukazi i-D4, i-D5 MN673276, i-Samsung yaseKorea, iphrosesa ye-NEXTCHIP, uchungechunge lwe-Taiwan A-NOVA ADP, njll. Futhi i-sensor futhi ikakhulukazi ku-Sony, i-Panasonic, i-Samsung ikakhulukazi.Inhlanganisela engenhla ye-DSP ehlukene nezinzwa ingakhelwa izixazululo ezihlukene zamakhamera.

Uchungechunge lwe-Effio luba yi-Sony enkathini yekhamera yokugada ye-analog SD ingoma yokugcina.Igama elithi “Effio” lisho “Izici Ezithuthukisiwe kanye Nephrosesa Yezithombe Ezinhle” (Izici Ezithuthukisiwe kanye Nephrosesa Yezithombe Ezinhle) isifinyezo.Isixazululo esiphezulu sochungechunge lwe-Effio sizungeze imigqa engu-750 - imigqa engu-800.Lesi isinqumo esiphezulu kakhulu esake satholwa ikhamera ye-analog SD.Ikhamera ye-Effio evamile inesibalo samaphikseli esisebenzayo esingu-976 (okuvundlile) x 582 (okuqondile), ngakho yaziwa nangokuthi ikhamera engu-960H (amaphikseli asebenzayo angaphezu kuka-960 ohlangothini oluvundlile).

Uchungechunge lwe-Effio lwaqalwa cishe ngo-2009, futhi isixazululo se-Effio-P yethulwa ngo-2012. Ngemva kwalokho u-Sony uzogxila kakhulu emizamweni yocwaningo nentuthuko ku-CMOS, amakhamera we-analog SD nawo aphela kancane kancane.

Ikhamera ye-Analog HD

I-CCD eshiywe yi-Sony, okugxilwe kakhulu kuzodluliselwa ku-CMOS yingoba izimo ezifanayo zokuxazulula, izindleko ze-CMOS ziphansi kakhulu, futhi ukulungiswa okuphezulu, igebe lezindleko likhulu, okusho ukuthi i-CCD ayifanele ukulungiswa okuphezulu. amakhamera okuphepha.Amakhamera okuphepha ku-HD, into yokuqala okufanele iqedwe inzwa ye-CCD.

Omaka:Ikhamera ye-CCTV, I-CCTV Lens