HDMI ndi chizindikiro chokhazikika chomwe chikugwiritsidwa ntchito pazinthu zambiri zogula.HDMI imayimira High-Definition Multimedia Interface.HDMI ndi mulingo waumwini womwe umatanthawuza kutumiza zizindikiro kuchokera ku gwero, monga kamera, Blu-ray player, kapena masewera a masewera, kupita kumalo, monga polojekiti.Imalowetsa mwachindunji miyezo yakale yaanalogi monga kompositi ndi S-Video.HDMI idayambitsidwa koyamba pamsika wa ogula ku 2004. Kwa zaka zambiri, pakhala pali mitundu ingapo yatsopano ya HDMI, yonse ikugwiritsa ntchito cholumikizira chomwecho.Pakadali pano, mtundu waposachedwa ndi 2.1, wogwirizana ndi 4K ndi 8K resolution ndi bandiwifi mpaka 42,6 Gbit/s.
HDMI poyamba idapangidwa ngati muyezo wa ogula, pomwe SDI idasankhidwa kukhala gawo lamakampani.Chifukwa cha izi, HDMI mwachibadwa sichigwirizana ndi utali wautali wa chingwe, makamaka pamene malingaliro akupitirira 1080p.SDI imatha kuthamanga mpaka 100m kutalika kwa chingwe mu 1080p50/60 (3 Gbit/s), pomwe HDMI imatha kutambasula mpaka 15m pamlingo womwewo.Pali njira zingapo zokulitsira HDMI kupitilira 15m.M'nkhaniyi, tikambirana njira zofala kwambiri zowonjezeretsa chizindikiro cha HDMI.
Chingwe Quality
Ngati mudutsa mamita 10, chizindikirocho chimayamba kutaya khalidwe lake.Mutha kuwona izi mosavuta chifukwa siginecha siyikufika pazenera la komwe mukupita kapena zinthu zakale zomwe zimapangitsa kuti siginecha isawonekere.HDMI imagwiritsa ntchito ukadaulo wotchedwa TMDS, kapena kusaina kosiyana kocheperako, kuwonetsetsa kuti ma serial data afika mwadongosolo.Transmitter imaphatikizanso ma algorithm otsogola omwe amachepetsa kusokoneza kwa ma electromagnetic pazingwe zamkuwa ndikupangitsa kuti wotchiyo ikhale yolimba pa wolandirayo kuti akwaniritse kulekerera kwakukulu kwa skew pakuyendetsa zingwe zazitali ndi zingwe zazifupi zotsika mtengo.
Kuti mufikire zingwe zazitali mpaka 15m, pamafunika zingwe zapamwamba kwambiri.Musalole wogulitsa akupusitseni kuti mugule zingwe zodula kwambiri chifukwa nthawi zambiri zimakhala zofanana ndi zotsika mtengo.Popeza HDMI ndi chizindikiro cha digito, palibe njira yowonetsera kuti ikhale yocheperako kuposa chingwe china chilichonse.Chokhacho chomwe chimachitika ndikusiya chizindikiro potumiza ma siginecha apamwamba kwambiri pa chingwe chachitali kwambiri kapena chingwe chomwe sichinavotere muyezo wa HDMI.
Ngati mukufuna kufika 15m ndi chingwe chokhazikika, chonde onetsetsani kuti chingwe chomwe mukugwiritsa ntchito ndichovotera HDMI 2.1.Chifukwa cha TMDS, chizindikirocho chidzafika bwino kapena sichifika konse.Chizindikiro cholakwika cha HDMI chidzakhala ndi chokhazikika chapadera pamwamba pake, chotchedwa sparkles.Zonyezimirazi ndi ma pixel omwe sanamasuliridwenso mu siginecha yoyenera ndikuwonetseredwa zoyera.Kulakwitsa kwamtunduwu ndikosowa kwenikweni, ndipo kumapangitsa kuti pakhale chinsalu chakuda, popanda chizindikiro nkomwe.
Kuwonjezera HDMI
HDMI idalandiridwa mwachangu ngati mawonekedwe oyambira kutengera makanema ndi zomvera mumitundu yonse yazinthu zogula.Chifukwa HDMI imanyamulanso zomvera, idakhalanso muyezo wama projekiti ndi zowonera zazikulu m'zipinda zamsonkhano.Ndipo chifukwa ma DSLRs ndi makamera amakalasi ogula alinso ndi mawonekedwe a HDMI, mayankho amakanema amalandilanso HDMI.Popeza ndizovomerezeka kwambiri ngati mawonekedwe ndipo zimapezeka pagulu lililonse la ogula la LCD, ndizotsika mtengo kwambiri kugwiritsa ntchito pakuyika makanema.Poyika makanema, ogwiritsa ntchito adakumana ndi vuto lomwe kutalika kwa chingwe kumatha kukhala 15m.Pali njira zingapo zothetsera vutoli:
Sinthani HDMI kukhala SDI ndi kumbuyo
Mukatembenuza chizindikiro cha HDMI kukhala SDI ndikubwerera pamalo omwe mukupita, mumakulitsa chizindikirocho mpaka 130m.Njirayi idagwiritsa ntchito chingwe chotalikirapo pambali yotumizira, yosinthidwa kukhala SDI, idagwiritsa ntchito chingwe chonse cha 100m, ndikubwereranso pambuyo pogwiritsanso chingwe cha HDMI chokwanira.Njirayi imafuna chingwe chapamwamba cha SDI ndi otembenuza awiri omwe akugwira ntchito ndipo sibwino chifukwa cha mtengo.
+ SDI ndiukadaulo wamphamvu kwambiri
+ Imathandizira mpaka 130m ndi kupitilira apo mukugwiritsa ntchito zotsekera zofiira
- SDI yapamwamba kwambiri ya kanema wa 4K siyotsika mtengo
- Ma converter omwe amagwira ntchito amatha kukhala okwera mtengo
Sinthani kukhala HDBaseT ndi kubwerera
Mukatembenuza siginecha ya HDMI kukhala HDBaseT, ndikubwerera mutha kufikira chingwe chachitali kuposa chingwe chotsika mtengo kwambiri cha CAT-6 kapena chingwe chabwinoko.Kutalika kwenikweni kumasiyana ndi zida zomwe mumagwiritsa ntchito, koma nthawi zambiri, 50m + ndizotheka.HDBaseT imatha kutumizanso mphamvu ku chipangizo chanu kuti isafune mphamvu zakomweko mbali imodzi.Apanso, izi zidalira pa hardware ntchito.
+ HDBaseT ndiukadaulo wamphamvu kwambiri womwe umathandizira mpaka 4K resolution
+ HDBaseT imagwiritsa ntchito cabling yotsika mtengo kwambiri ngati chingwe cha ethernet CAT-6
- Zolumikizira zingwe za Efaneti (RJ-45) zitha kukhala zosalimba
- Kutalika kwa chingwe kutengera zida zomwe zimagwiritsidwa ntchito
Gwiritsani Ntchito Zingwe za HDMI
Zingwe za HDMI zogwira ntchito ndi zingwe zomwe zimakhala ndi chosinthira kuchokera ku mkuwa wokhazikika kupita ku fiber optical.Mwanjira iyi, chingwe chenichenicho ndi chiwombankhanga cha kuwala kwa mphira.Mtundu uwu wa chingwe ndi wangwiro ngati mukufunikira kuyiyika muzitsulo zokhazikika, monga nyumba yaofesi.Chingwecho ndi chosalimba ndipo sichingapindikidwe pamtunda wina wake, ndipo sichiyenera kupondedwa kapena kuyendetsedwa ndi ngolo.Zowonjezera zamtunduwu ndizokwera mtengo koma zodalirika kwambiri.Nthawi zina, chingwe chimodzi chimathera mphamvu chifukwa chakuti chipangizocho sichimatulutsa magetsi ofunikira kwa otembenuza.Mayankho awa amapita ku 100 metres mosavuta.
+ Zingwe zogwira ntchito za HDMI mwachilengedwe zimathandizira kutsimikiza kwakukulu mpaka 4K
+ Yankho lokhazikika komanso lalitali la cabling pakukhazikitsa kokhazikika
- Chingwe cha fiber Optical ndi chosalimba popinda ndi kuphwanya
- Sizinthu zonse zowonetsera kapena zotumizira zomwe zimatulutsa magetsi oyenera pa chingwe
Gwiritsani Ntchito Zowonjezera za HDMI
Active HDMI extenders ndi njira yabwino yowonjezerera ma siginecha motsika mtengo.Wowonjezera aliyense amawonjezera 15m ina mpaka kutalika kwake.Zowonjezera izi sizokwera mtengo kwambiri kapena zovuta kugwiritsa ntchito.Imeneyi idzakhala njira yomwe mungakonde ngati mukufuna zingwe zazitali zazitali pakuyika kokhazikika, monga OB Van kapena chingwe chodutsa padenga kupita ku projekiti.Zowonjezera izi zimafuna mphamvu yapafupi kapena batri ndipo sizoyenera kuyikika komwe kumafunika kukhala ndi mafoni.
+ Yankho lotsika mtengo
+ Itha kugwiritsa ntchito zingwe zomwe zilipo kale
- Imafunika mphamvu yakumaloko kapena batri kutalika kwa chingwe chilichonse
- Siyoyenera kuyendetsa chingwe chachitali kapena kuyika mafoni
Nthawi yotumiza: Apr-19-2022