I-HDMI ngumqondiso oqhelekileyo osetyenziswa kwi-plethora yempahla yabathengi.I-HDMI imele i-High-Definition Multimedia Interface.I-HDMI ngumgangatho wobunikazi ojoliswe ukuthumela iimpawu ezivela kumthombo, njengekhamera, i-Blu-ray player, okanye i-console yokudlala, ukuya kwindawo, njenge-monitor.Ithatha indawo ngokuthe ngqo imigangatho ye-analog endala njenge-composite kunye ne-S-Video.I-HDMI yaqala ukwaziswa kwimarike yabathengi kwi-2004. Kwiminyaka edlulileyo, kukho iinguqulelo ezininzi ezintsha ze-HDMI, zonke zisebenzisa ikhonkco elifanayo.Okwangoku, inguqulo yakamuva yi-2.1, iyahambelana ne-4K kunye ne-8K izigqibo kunye ne-bandwidths ukuya kwi-42,6 Gbit / s.
I-HDMI iqale ijongwe njengomgangatho wabathengi, ngelixa i-SDI yonyulwa njengomgangatho woshishino.Ngenxa yoku, i-HDMI ngokwemveli ayixhasi ubude bentambo emide, ngakumbi xa izisombululo zihamba ngaphaya kwe-1080p.I-SDI inokuhamba ifike kwi-100m ubude bekhebula kwi-1080p50/60 (3 Gbit / s), ngelixa i-HDMI inokwelula ukuya kwi-15m kwi-bandwidth efanayo.Kukho iindlela ezininzi zokwandisa i-HDMI ngaphaya kwe-15m.Kweli nqaku, siza kuthetha malunga neendlela eziqhelekileyo zokwandisa uphawu lwe-HDMI.
Umgangatho weCable
Ukuba uhamba ngaphaya kweemitha ezili-10, isignali iqala ukulahlekelwa ngumgangatho wayo.Ungayibona ngokulula le nto ngenxa yokuba umqondiso ungafiki kwindawo ekuyiwa kuyo okanye izinto zakudala ezikwisiginali eyenza ukuba isiginali ingabonakali.I-HDMI isebenzisa iteknoloji ebizwa ngokuba yi-TMDS, okanye i-transition-minimized differential signing, ukuqinisekisa ukuba idatha ye-serial ifika ngendlela ehlelekile.I-transmitter ibandakanya i-algorithm yekhowudi ephucukileyo enciphisa ukuphazamiseka kwe-electromagnetic phezu kweentambo zobhedu kwaye yenza ukuba ukubuyiswa kwewotshi eyomeleleyo kumamkeli ukufezekisa ukunyamezela okuphezulu kwe-skew ukuqhuba iintambo ezinde kunye neentambo ezimfutshane ezinexabiso eliphantsi.
Ukufikelela kwiintambo ezibude ukuya kwi-15m, udinga iintambo ezikumgangatho ophezulu.Ungavumeli umthengisi akuqhathe ekuthengeni ezona ntambo zixabisa kakhulu zithengwayo kuba amaxesha amaninzi ziyafana nezi zingabizi kakhulu.Ekubeni i-HDMI isignali yedijithali ngokupheleleyo, akukho ndlela yokubonisa ukuba kumgangatho ongaphantsi kunayo nayiphi na enye ikhebula.Ekuphela kwento eyenzekayo kukuyeka umqondiso xa uthumela iimpawu eziphezulu ze-bandwidth kwikhebula elide kakhulu okanye intambo engalinganiswanga kumgangatho othile we-HDMI.
Ukuba ufuna ukufikelela kwi-15m ngentambo eqhelekileyo, nceda uqinisekise ukuba intambo oyisebenzisayo ireyithelwe i-HDMI 2.1.Ngenxa ye-TMDS, uphawu luya kufika kakuhle okanye alufiki kwaphela.Isignali ye-HDMI engalunganga iya kuba ne-static ethile phezu kwayo, ebizwa ngokuba yi-sparkles.Ezi khazimla ziipixels ezingaguqulelwanga zibuyele kwisignali eyiyo kwaye iboniswe ngomhlophe.Olu hlobo lwempazamo yomqondiso lunqabile, kwaye luya kuba nesiphumo sesikrini esimnyama, akukho siginali kwaphela.
Ukwandiswa kweHDMI
I-HDMI yamkelwa ngokukhawuleza njengento ephambili yokuthutha ividiyo kunye nesandi kuzo zonke iintlobo zeemveliso zabathengi.Ngenxa yokuba i-HDMI iphinda ihambise i-audio, ngokukhawuleza yaba ngumgangatho weeprojekti kunye nezikrini ezinkulu kumagumbi enkomfa.Kwaye ngenxa yokuba ii-DSLRs kunye neekhamera zebakala labathengi nazo zinee-HDMI ujongano, izisombululo zevidiyo zobuchwephesha zifumene i-HDMI ngokunjalo.Kuba yamkelwe ngokubanzi njengendawo yojongano kwaye ifumaneka kuyo nayiphi na ipaneli ye-LCD yabathengi, kubiza imali eninzi kakhulu ukuyisebenzisa kufakelo lwevidiyo.Kufakelo lwevidiyo, abasebenzisi bagilane nengxaki yokuba ubude bekhebula bunokuba yi-15m kuphela.Kukho iindlela ezininzi zokoyisa le ngxaki:
Guqula i-HDMI kwi-SDI kunye nomva
Xa uguqula i-HDMI isignali kwi-SDI kwaye ubuyele kwindawo oya kuyo, uyandisa ngokufanelekileyo isignali ukuya kwi-130m.Le ndlela isetyenzisile ubude bekhebula eliphezulu kwicala lokudlulisa, eliguqulelwe kwi-SDI, lisebenzise ubude bekhebula elipheleleyo le-100m, kwaye liguqulelwe umva emva kokusebenzisa i-HDMI ikhebula elipheleleyo kwakhona.Le ndlela idinga intambo ye-SDI ephezulu kunye nabaguquli ababini abasebenzayo kwaye ayikhethwa ngenxa yeendleko.
+ I-SDI yitekhnoloji eyomeleleyo kakhulu
+ Ixhasa ukuya kuthi ga kwi-130m nangaphezulu xa usebenzisa iilokhi ezibomvu
-I-SDI ekumgangatho ophezulu wevidiyo ye-4K ayibizi kakhulu
- Abaguquli abasebenzayo banokubiza
Guqula kwi-HDBaseT nasemva
Xa uguqulela isiginali ye-HDMI kwi-HDBaseT, kwaye ngasemva ungafikelela kubude bekhebula ezinde ngaphezulu kwe-CAT-6 ebiza kakhulu okanye intambo engcono.Obona bude buphezulu buyahluka kwi-hardware oyisebenzisayo, kodwa ixesha elininzi, i-50m + inokwenzeka ngokugqibeleleyo.I-HDBaseT inokuthumela amandla kwisixhobo sakho ukuba singadingi amandla asekhaya kwicala elinye.Kwakhona, oku kuxhomekeke kwihardware esetyenzisiweyo.
+ I-HDBaseT yitekhnoloji eyomeleleyo kakhulu ngenkxaso ukuya kuthi ga kwisisombululo se-4K
+ I-HDBaseT isebenzisa ikhebhili engabizi kakhulu ngohlobo lwentambo ye-ethernet yeCAT-6
- Izixhumi zekhebula ze-Ethernet (RJ-45) zinokuba buthathaka
- Ubude obuninzi bekhebula ngokuxhomekeke kwihardware esetyenzisiweyo
Sebenzisa Iintambo zeHDMI eziSebenzayo
Iintambo ze-HDMI ezisebenzayo ziintambo ezine-converter eyakhelwe-ngaphakathi ukusuka kubhedu oluqhelekileyo ukuya kwi-fiber optical.Ngale ndlela, intambo yokwenyani yifiber ebonakalayo ebhityileyo kwi-rubber insulation.Olu hlobo lwekhebula lufanelekile ukuba ufuna ukuyifaka kwi-fixed installing, njengesakhiwo seofisi.Intambo ibuthathaka kwaye ayinakugotywa kwiradiyasi ethile, kwaye akufuneki inyathelwe okanye iqhutywe yinqwelo.Olu hlobo lolwandiso luyabiza ukude kodwa luthembeke kakhulu.Kwezinye iimeko, enye yeziphelo zentambo ayikhuphi amandla ngenxa yesixhobo esingakhuphi umbane ofunekayo kubaguquli.Ezi zisombululo zinyuka ukuya kwi-100 yeemitha ngokulula.
+ Iintambo zeHDMI ezisebenzayo ngokwemveli zixhasa izisombululo eziphezulu ukuya kuthi ga kwi-4K
+ Isisombululo esithambileyo kunye neside sofakelo olusisigxina
- Intambo yefiber ye-Optical i-ethe-ethe ukugoba kunye nokutyumza
- Ayizizo zonke imiboniso okanye ii-transmitter ezikhupha amandla ombane afanelekileyo kwintambo
Sebenzisa i-Active HDMI Extenders
Izandisi ze-HDMI ezisebenzayo ziyindlela elungileyo yokwandisa umqondiso ngeendleko ezifanelekileyo.Isandisi ngasinye songeza enye i-15m kubude obuninzi.Ezi zandisi azibizi kakhulu okanye zinzima ukuzisebenzisa.Oku kuya kuba yindlela ekhethiweyo ukuba ufuna iintambo zobude obuphakathi kufakelo olusisigxina, njenge-OB Van okanye intambo ehamba phezu kwesilingi ukuya kwiprojekti.Ezi zandisi zifuna amandla asekuhlaleni okanye ebhetri kwaye azikulungelanga kufakelo olufuna ukuhamba.
+ Isisombululo esingabizi kakhulu
+ Unokusebenzisa iintambo esele zikhona
-Ifuna amandla engingqi okanye ebhetri ubude bentambo nganye
- Ayifanelanga ukubaleka kweentambo ezinde okanye ufakelo oluphathwayo
Ixesha lokuposa: Apr-19-2022