I-HDMI isignali evamile esetshenziswa kunqwaba yezimpahla zabathengi.I-HDMI imele i-High-Definition Multimedia Interface.I-HDMI iyindinganiso yobunikazi ehloselwe ukuthumela amasignali avela kumthombo, njengekhamera, isidlali se-Blu-ray, noma ikhonsoli yokudlala, endaweni okuyiwa kuyo, njengemonitha.Ingena ngokuqondile esikhundleni samazinga amadala e-analog afana nenhlanganisela kanye ne-S-Video.I-HDMI yethulwa okokuqala emakethe yabathengi ngo-2004. Eminyakeni edlule, kube nezinguqulo eziningi ezintsha ze-HDMI, zonke zisebenzisa isixhumi esifanayo.Njengamanje, inguqulo yakamuva ingu-2.1, iyahambisana nezinqumo ze-4K ne-8K kanye nomkhawulokudonsa ofinyelela ku-42,6 Gbit/s.
I-HDMI ekuqaleni ibihloswe njengezinga lomthengi, kuyilapho i-SDI iqokwe njengezinga lemboni.Ngenxa yalokhu, i-HDMI ngokwendabuko ayisekeli ubude bekhebula ende, ikakhulukazi uma izinqumo zidlula i-1080p.I-SDI ingagijima ifike ku-100m ngobude bekhebula ku-1080p50/60 (3 Gbit/s), kuyilapho i-HDMI inganwebeka ifike ku-15m kumkhawulokudonsa ofanayo.Kunezindlela ezimbalwa zokunweba i-HDMI ngaphezu kwaleyo 15m.Kulesi sihloko, sizokhuluma ngezindlela ezivame kakhulu zokwelula isignali ye-HDMI.
Ikhwalithi Yekhebula
Uma udlula amamitha ayi-10, isignali iqala ukulahlekelwa ikhwalithi yayo.Ungakwazi ukubona lokhu kalula ngenxa yokuthi isignali ingafiki esikrinini sendawo noma ama-artifact kusignali okwenza isignali ingabonakali.I-HDMI isebenzisa ubuchwepheshe obubizwa ngokuthi i-TMDS, noma ukusayinda okuncishisiwe kwe-transition-minimized, ukuze kuqinisekiswe ukuthi idatha ye-serial ifika ngendlela ehlelekile.Isidluliseli sihlanganisa i-algorithm yekhodi ethuthukisiwe enciphisa ukuphazamiseka kukazibuthe kagesi phezu kwezintambo zethusi futhi inike amandla ukutholwa kwewashi eliqinile kumamukeli ukuze kuzuze ukubekezelelana okuphezulu kwama-skew ukushayela izintambo ezinde namakhebuli amafushane abiza kancane.
Ukuze ufinyelele ubude bezintambo ezifika ku-15m, udinga izintambo zekhwalithi ephezulu.Ungavumeli umdayisi akukhohlise ngokuthi uthenge izintambo ezithengwayo ezibiza kakhulu ngoba isikhathi esiningi ziyefana nalezo ezishibhile.Njengoba i-HDMI iyisiginali yedijithali ngokugcwele, ayikho indlela yokubonisa ukuthi inekhwalithi encane kunanoma iyiphi enye ikhebula.Okuwukuphela kwento eyenzekayo ukwehliswa kwesignali lapho kuthunyelwa amasiginali aphezulu womkhawulokudonsa ngekhebula ende kakhulu noma ikhebula elingalinganiselwe ngezinga elithile le-HDMI.
Uma ufuna ukufinyelela ku-15m ngentambo evamile, sicela uqinisekise ukuthi ikhebula oyisebenzisayo ikalelwe i-HDMI 2.1.Ngenxa ye-TMDS, isiginali izofika kahle noma ingafiki nhlobo.Isignali ye-HDMI engalungile izoba nokuma okuthile phezu kwayo, okubizwa ngokuthi ama-sparkles.Lezi zinhlayiya zingamaphikseli angahunyushwanga abuyiselwe kusignali efanele futhi aboniswe ngokumhlophe.Lolu hlobo lwephutha lesignali luyivelakancane, futhi luzoholela esikrinini esimnyama, kungabikho isignali nhlobo.
Inweba i-HDMI
I-HDMI yamukelwa ngokushesha njengesixhumi esibonakalayo esiyinhloko sokuthutha ividiyo nomsindo kuzo zonke izinhlobo zemikhiqizo yabathengi.Ngenxa yokuthi i-HDMI iphinde ithuthe okulalelwayo, ngokushesha yaba indinganiso yamaphrojekhtha nezikrini ezinkulu emakamelweni enkomfa.Futhi ngenxa yokuthi ama-DSLR namakhamera ebanga labathengi nawo anezindawo ze-HDMI, izixazululo zevidiyo ezichwepheshile zithole i-HDMI.Njengoba yamukelwa kabanzi njengesixhumi esibonakalayo futhi itholakala kunoma iyiphi iphaneli ye-LCD yabathengi, kubiza kakhulu ukukusebenzisa ekufakweni kwevidiyo.Ekufakweni kwevidiyo, abasebenzisi bahlangabezane nenkinga yokuthi ubude bekhebula obukhulu bungaba ngu-15m kuphela.Kunezindlela eziningi zokunqoba le nkinga:
Guqula i-HDMI ibe yi-SDI futhi ubuye
Uma uguqula isignali ye-HDMI ibe yi-SDI bese ubuyela endaweni oya kuyo, unweba isignali ngempumelelo ifike ku-130m.Le ndlela isebenzise ubude bekhebula obukhulu kuhlangothi lokudlulisa, eguqulelwe ku-SDI, yasebenzisa ubude bekhebula obugcwele obungu-100m, futhi yabuyiselwa emuva ngemva kokusebenzisa ikhebula le-HDMI yobude obugcwele futhi.Le ndlela idinga ikhebula le-SDI lekhwalithi ephezulu neziguquli ezimbili ezisebenzayo futhi ayinconyelwa ngenxa yezindleko.
+ I-SDI ubuchwepheshe obuqine kakhulu
+ Isekela kuze kufike ku-130m nangaphezulu lapho usebenzisa amalokha abomvu
- I-SDI yekhwalithi ephezulu yevidiyo ye-4K ayibizi kakhulu
- Iziguquli ezisebenzayo zingabiza
Guqulela ku-HDBaseT futhi ubuye
Lapho uguqula isignali ye-HDMI ibe i-HDBaseT, futhi emuva ungakwazi ukufinyelela ubude bekhebula ende ngekhebula ebiza kakhulu ye-CAT-6 noma engcono.Ubude bangempela obukhulu buyahlukahluka ngokuthi iyiphi ihadiwe oyisebenzisayo, kodwa isikhathi esiningi, 50m+ kungenzeka ngokuphelele.I-HDBaseT ingaphinda ithumele amandla kudivayisi yakho ukuze ingadingi amandla endawo ohlangothini olulodwa.Futhi, lokhu kuya nge-hardware esetshenzisiwe.
+ I-HDBaseT ubuchwepheshe obuqine kakhulu obusekela ukulungiswa okufika ku-4K
+ I-HDBaseT isebenzisa ikhebula ebiza kakhulu ngendlela yentambo ye-ethernet ye-CAT-6
- Izixhumi zekhebula le-Ethernet (RJ-45) zingaba ntekenteke
- Ubude bekhebula obukhulu kuye ngehadiwe esetshenzisiwe
Sebenzisa Amakhebuli e-HDMI Asebenzayo
Izintambo ze-HDMI ezisebenzayo amakhebuli anesiguquli esakhelwe ngaphakathi esisuka kukhopha esivamile siye ku-fiber optical.Ngale ndlela, ikhebula langempela liwucwecwe lwe-fibre optical in insulation yenjoloba.Lolu hlobo lwekhebula luphelele uma udinga ukulifaka endaweni ehleliwe, njengesakhiwo sehhovisi.Ikhebuli intekenteke futhi ayikwazi ukugoba endaweni ethile, futhi akufanele inyathelwe noma ishayelwe inqola.Lolu hlobo lwesandiso lubiza ukude kodwa luthembekile kakhulu.Kwezinye izimo, enye yeziphetho zekhebula ayivuswanga amandla ngenxa yokuthi idivayisi ayikhiphi i-voltage edingekayo yeziguquli.Lezi zixazululo zikhuphukela kumamitha ayi-100 kalula.
+ Izintambo ze-HDMI ezisebenzayo ngokwemvelo zisekela ukulungiswa okuphezulu kufika ku-4K
+ Isixazululo sekhebula esintekenteke nesinde sokufakwa okungaguquki
- Ikhebula le-fiber optical lintekenteke ukuze ligotshwe futhi lichotshozwe
- Akuzona zonke izibonisi noma ama-transmitter akhipha i-voltage efanele yekhebula
Sebenzisa Izandiso ze-HDMI ezisebenzayo
Izandisi ze-HDMI ezisebenzayo ziyindlela enhle yokwelula isignali ngendlela ephumelelayo.I-extender ngayinye yengeza enye i-15m kubude obukhulu kakhulu.Lezi zandiso azibizi kakhulu noma akunzima ukuzisebenzisa.Lena kuzoba indlela ekhethwayo uma udinga izintambo ezinobude obumaphakathi ekufakweni okungaguquki, njenge-OB Van noma ikhebula elihamba phezu kosilingi liye kuprojektha.Lezi zandiso zidinga amandla wendawo noma webhethri futhi azifaneleki kancane ekufakweni okudingeka kube yiselula.
+ Isixazululo esingabizi kakhulu
+ Ingasebenzisa izintambo esezivele zikhona
- Idinga amandla wendawo noma webhethri ubude bekhebula ngalinye
- Ayifanele ukugijima kwamakhebula amade noma ukufakwa kweselula
Isikhathi sokuthumela: Apr-19-2022