Namuhla, ukubhekwa kwevidiyo kuyingqalasizinda ebalulekile kuyo yonke imikhakha yempilo.Ukwakhiwa kwezinhlelo zenethiwekhi zokugada amavidiyo kwenza kube lula ukuqapha izindawo zomphakathi nokuthola ulwazi.Kodwa-ke, ngokuthandwa kokuchazwa okuphezulu nokusetshenziswa okukhaliphile kwamakhamera okuqapha ividiyo, izidingo zekhwalithi yesiginali yokudlulisa ividiyo, umkhawulokudonsa wokusakaza kanye nebanga lokudlulisela kuye kwathuthukiswa, futhi izinhlelo ezikhona zekhebula zethusi zinzima ukufanisa.Lesi sihloko sizoxoxa ngohlelo olusha lwezintambo olusebenzisa izintambo ze-fiber optical kanye nama-transceivers optical, angasetshenziswa ezinhlelweni zokuqapha ithelevishini ezivaliwe (CCTV) kanye nezinhlelo zokuqapha ividiyo yenethiwekhi ye-IP.

Uhlolojikelele lwesistimu yokuqapha ividiyo

Namuhla, amanethiwekhi okuqapha amavidiyo aya ngokuya ethandwa kakhulu, futhi kunezixazululo eziningi zokwakha izinhlelo zokugada amavidiyo.Phakathi kwazo, ukuqapha kwe-CCTV nokuqapha kwekhamera ye-IP yizixazululo ezivame kakhulu.

Isistimu yokuqapha kamabonakude evaliwe (CCTV)
Ohlelweni olujwayelekile lokugada umabona kude, ikhamera ye-analog engaguquki (CCTV) ixhunywe kudivayisi yokugcina (njengerekhoda yevidiyo ye-VCR noma i-digital hard disk video rekhoda i-DVR) ngentambo ye-coaxial.Uma ikhamera iyikhamera ye-PTZ (isekela ukuzungezisa okuvundlile, ukutsheka nokusondeza), isilawuli esengeziwe se-PTZ sidinga ukwengezwa.

Isistimu yokuqapha ividiyo yenethiwekhi ye-IP
Kunethiwekhi evamile yokugada ividiyo yenethiwekhi ye-IP, amakhamera e-IP axhunywe kunethiwekhi yendawo ngezintambo ezingavikelwe ezisontekile (okungukuthi, Isigaba 5, Isigaba 5, nezinye izixhumi zenethiwekhi) namaswishi.Ihlukile kumakhamera e-analog ashiwo ngenhla, amakhamera e-IP ikakhulukazi athumela futhi amukele ama-datagram e-IP ngenethiwekhi ngaphandle kokuwathumela kumadivayisi okugcina.Ngesikhathi esifanayo, ividiyo ethathwe amakhamera we-IP irekhodwa kunoma iyiphi i-PC noma iseva kunethiwekhi.Isici esikhulu kunazo zonke senethiwekhi yokubhekwa kwevidiyo yenethiwekhi ye-IP ukuthi ikhamera ngayinye ye-IP inekheli layo le-IP elizimele, futhi ingazithola ngokushesha. ngokusekelwe ekhelini le-IP kuyo yonke inethiwekhi yevidiyo.Ngesikhathi esifanayo, njengoba amakheli e-IP wamakhamera we-IP angalungiseka, angafinyelelwa kuwo wonke umhlaba.

Isidingo se-optical fibre transceiver ohlelweni lokugada ividiyo yenethiwekhi ye-CCTV/IP

Zombili lezi zinhlelo zokubhekwa kwevidiyo ezibalwe ngenhla zingasetshenziswa ezindaweni zenethiwekhi yezohwebo noma zokuhlala.Phakathi kwazo, amakhamera e-analog angaguquki asetshenziswa ku-CCTV ngokuvamile asebenzisa izintambo ze-coaxial noma izintambo ezisontekile ezingavikelekile (ngaphezulu kwesigaba sezintambo ezintathu zenethiwekhi) ukuze zixhumeke, futhi amakhamera e-IP ngokuvamile asebenzisa izintambo ezisontekile ezingavikelekile (ngaphezulu kwesigaba sezintambo zenethiwekhi ezinhlanu) ukuze axhumeke.Ngenxa yokuthi lezi zinhlelo ezimbili zisebenzisa i-copper cabling, zingaphansi kune-fiber cabling ngokwebanga lokudlulisela kanye nomkhawulokudonsa wenethiwekhi.Kodwa-ke, akulula ukufaka i-copper cabling yamanje ngokufaka i-optical fibre cabling, futhi kunezinselelo ezilandelayo:

*Izintambo zethusi zivame ukufakwa odongeni.Uma kusetshenziswa imicu yokubona, izintambo ezibonakalayo zidinga ukubekwa ngaphansi komhlaba.Nokho, lokhu akunakwenzeka kubasebenzisi abavamile.Ochwepheshe bayadingeka ukuthi baqedele ukubeka, futhi izindleko zezintambo azikho phansi;
*Ngaphezu kwalokho, okokusebenza kwekhamera yendabuko akufakwe izimbobo zefiber.

Ngenxa yalokhu, indlela yokuhlanganisa i-fiber optic esebenzisa i-fiber optic transceivers namakhamera we-analog/amakhamera we-IP idonsele ukunaka kwabaphathi benethiwekhi.Phakathi kwazo, i-transceiver ye-fiber optical iguqula isignali kagesi yasekuqaleni ibe isignali ye-optical ukuze ibone ukuxhuma kwentambo yethusi kanye ne-fiber optical.Inezinzuzo ezilandelayo:

*Asikho isidingo sokuhambisa noma ukushintsha izintambo zekhebula zethusi zangaphambilini, vele uqaphele ukuguqulwa kwe-photoelectric ngokusebenzisa ukuxhumana okuhlukene ku-transceiver ye-fiber optical, futhi uxhume ikhebula lethusi ne-fiber optical, engasindisa ngokuphumelelayo isikhathi namandla;
*Ihlinzeka ngebhuloho phakathi kwe-copper medium and optical fiber medium, okusho ukuthi okokusebenza kungasetshenziswa njengebhuloho phakathi kwentambo yethusi nengqalasizinda yefiber optical.

Ngokuvamile, ama-transceivers e-fiber optic ahlinzeka ngendlela engabizi kakhulu yokwandisa ibanga lokudlulisela lenethiwekhi ekhona, impilo yesevisi yemishini engeyona i-fiber, kanye nebanga lokudlulisela phakathi kwamadivayisi amabili enethiwekhi.