Kusvika iye zvino, nokuda kwekuchengeteka, video kutarisa kunoitwa nemhando mbiri dzekamera - digital uye analog. Dhijitori vateveri veAnalogog, asi vekupedzisira havasi kurasikirwa nekududzirwa kwavo kusvikira nhasi. Ichi chinyorwa chinoreva nezveanorog CCTV kamera.
Vanoshanda sei?
Ikopi yemavhidhiyo kamera inotora chiedza chekuyerera ichichipa kumatrikisi eCCD, ichichinjeka kuva chiratidzo chegetsi uye ichichitumira iyo pamwe chete nekambani kuenda kuchigamu chinogamuchirwa. Analog video surveillance cameras yakasiyana nedhijithali mune kuti haishanduki chiratidzo chegetsi mumutsetse webhanary, asi ichichiendesa kumichina yekunyora nenzira isina kuchinjwa. Izvi zvinoita kuti zvikwanise kuita nyore kutarisa kwekutarisa uye kusashandura chiratidzo pa computer. Ndinofanira kutaura kuti kamera yakadaro inogona kushamwaridzana ne-digital converter uye inogamuchira chiratidzo kubva kumakero emakamera akawanda.
Devices vorudzi urwu vanokwanisa kutumira mufananidzo kune network pane chero kupi zvako munyika, uye panguva imwe chete munzvimbo dzakasiyana-siyana, kuratidzira pazviongorori zvakasiyana-siyana panguva imwe chete. Nokuda kweizvi, multiplexer inoshandiswa iyo yakaisa ruzivo rwevhidhiyo muzviongorori zvakawanda.
Mifananidzo yeAnalogog CCTV kamera:
- Chirevo . Iyo yakaderera ine 480 TVL, yevhareji ndeye 480-540 TVL, uye yakakwirira iri 540-700 TVL uye yakakwirira. Analog CCTV makamera ekugadzirisa kwepamusoro anoita kuti zvikwanise kusiyanisa zviso zvevapfuri-ne-mapepaniti emotokari pamakiromita akareba. Chokwadi uye DVR munyaya iyi inofanirwa kuisa zvakanyanya simba.
- Photosensitivity . A low 1.5 mic lux inoshandiswa mukupfura muzuva rakatsvuka. Iyo yakakwirira kupfuura 0.001 lux inogona kushanda pasi pekujekesa chero kupi zvako.
- Zviratidzo zve lens . F2.8 inosvika maonero ekuona ma 90 degrees, uye F 16 - kwete kupfuura 5 degrees.
Inonyanya kufarirwa ndeyeAnalogog CCTV makamera RVI, mienzaniso yakakurumbira iyo yakagadziriswa yakakwana, inokwanisa kutumira chiratidzo kune chinhambwe chemamita 500, ka20 kuwedzera chifananidzo nekupfura kunyange murima, pasina chitubu chemvura chiri kure nemamita 100. Uyezve, yakavakwa IR-spotlight inogona kuvharwa nemashoko uye kuisa kamera iri pedyo nemugwagwa kana mumugwagwa. Makamera eAnalog anopa kuwirirana kwezvinetso zvevamwe vanogadzira zvakasiyana-siyana, zviri nyore kuungana nekugadzirisa. Chigadzirwa chacho chinotora zvachose zvinhu zvose uye ine mari shoma.