Miracast - yintoni na? transmission Wireless uphawu eendaba

multimedia wireless High ezikumgangatho umqondiso yobuchopho kwisixhobo esithile devaysa (TV, umatshini, umdlali zokufezekisa, njl ...) - oku kanye into engasemva Miracast kota. Lo bugcisa yokusabela kwimarike esivakalayo iimveliso "closed 'ingqondo Apple kunye Intel, oko kukuthi, kuba ilifa imigaqo idlalwe kunye WiDi, kodwa oko kuxhomekeke ukuba ubuchule eyahlukileyo esebenza. Njengesiseko asemgangathweni ethathwe amathuba Wi-Fi Ngqo. Ngoko, ulwazi umendo ukusuka umhambisi kumajelo eendaba maluphelele ngamanqaku amabini. Umzila-umlamli kwinkqubo wokuguqulela akazibandakanyi - umthumeli ngumamkeli uxhulumeneyo ngqo.

Miracast. Yintoni na le mmangaliso?

Ilungelo kuphela ukuba uphawu (igama elipheleleyo uphawu - Wi-Fi Certified Miracast) umbutho Wi-Fi Alliance. Nangona kunjalo, naziphi na iilogo ezizodwa okanye izifinyezo ukwenzela kophawu imveliso exhasa ubuchwepheshe akakho. Lo mbhalo «WiFi Miracast» lidla isicelo kwisixhobo, sele kudlule inkqubo isatifikethi i ngokungqinelana neemfuno zesicwangciso Bonisa uvavanyo.

Eyona njongo iphambili laliqulunqwe ngolu hlobo lulandelayo :. "Ukuqinisekisa imveliso ye umxholo media ukusuka PC monitor okanye igajethi uboniso mobile kwiscreen esikhulu ngaphandle kokusebenzisa iingcingo kunye nothungelwano yangaphandle" Ngogxininiso olukhethekileyo umgangatho uphawu ezifunyenweyo.

Namhlanje umsebenzisi ngalinye devaysa "smart" (ngaphandle kokuba OS inkxaso Miracast standard) ungakwazi ukugqinelanisa isixhobo yabo TV / wokudlala asebenza kunye nomfanekiso isikali ngaphandle ukufakwa software olongezelelweyo.

iimpawu baseline

Isiseko esibalulekileyo iteknoloji - a ubuchule ezisebenzayo Wi-Fi ngqo: Miracast-iadaptha ukuba Imigudu kwi uqhagamshelwano lwetshiphu emsebenzi iyunithi lezibuko-udibaniso (ukuba kubonelelwa "intsimbi" ilungiselelo lwangaphakathi), indawo yinxalenye yothungelwano ekhaya yakha ibhulorho kunye ngumsasazi lunqunyanyisiwe. Ngaphezu koko, ITU-T H.264 uphawu ifomati akujongwa njengendlela iifayile ukwabelana, yaye indlela le iipakethi zosasazo zothutho philisi (i ishedyuli wathumela efunyenwe ngohlobo njengoko kunjalo).

Ngexesha le ntetho Miracast (kwenzeka kanye ngoSeptemba 2012 - akukho ngozi: kwiinyanga ngaphantsi kwe-2 ubuchwepheshe iye yasetyenziswa yi ezihlaziyiweyo Android yokusebenza kunye, ngokufanelekileyo, iye isetyenziswe kuphela kwiimveliso Google), bekukho ngaphezu amahlanu lezisombululo baxhasiwe: 17 - BCEA, 29 - VESA, 12 - ekuthiwa-ngefowuni. Phakathi kwimigangatho eyiyo eziqaphelekayo - channel-ezimbini LPCM, «Ububnz 5.1» AC3 kunye ACC.

Ukuze ufumane inkcazelo engakumbi malunga nenkqubo uqhagamshelwano

Inyathelo ngenyathelo lokuvula iinketho Miracast (kuba mhlawumbi sele ecacileyo) kufuna amanyathelo aliqela. Kufuneka sisebenze ngendlela:

1. Vula kwi PC / Smartphones / "Pilot".
2. Vula data yomammkeli (okanye TV wekhusi iintetho).
3. Yabela zombini iifowuni esihambelanayo nenkqubo acwangciswe ngaphambili.

Khetha kwaye uqhuba oluthile lwefayile kwimo ikopi, uboniso screen kwi kwisamkeli monitor eendaba.

Umlamli zendlela ezinjalo "iintetho" ongathathi nxaxheba: izixhobo ezimbini benza umzila ephephile ngqo apho kamva kwenzeka zosasazo. Ngamagama alula, Miracast (ukuba ulwalathiso zeteknoloji njenge uhlobo lomsebenzi kunye photo nevidiyo lwazi luya kuba zithandwa kakhulu kunabaphathi be window yakwantu uqhagamshelwano lwetshiphu emsebenzi-yesango ke, ngoku akukho mathandabuzo) kuyinto ngezakhiwo yakhiwa encotsheni Wi-Fi Ngqo iinguqulelo kamva (3.50 nangaphezulu). Isetyenziswa kuvumela H.264 ividiyo ucinezelo lokuphinda i ikopi ngqo izinto idatha ikuyo nayiphi na Isibonisi Nedlac, ukuquka ngeprojektha screen.

Amancedo aba ngamnye

Nkqu umsebenzisi ongenamava engacinganga uya kubiza izizathu ezininzi imfuno ye Miracast. Okokuqala, sithetha ngayo intuthuzelo yokusebenza: ibonakale omnye komnye 'emoyeni ", kunye nokuchongwa lwenzeka kwi ngumbandela imizuzwana, kunye nokusebenzisana - ngaphandle njengabalamli (akukho mfuneko yokuthenga USB kokuxhuma). Okwesibini, abasusekayo-Miracast iadaptha na automated ukuze hlengiso indaba imodeli ethile isixhobo akukho mfuneko - yomthumeli dongle / receiver ngokwayo uyakuqonda ulwazi olukokuzotyiweyo. Ukongezelela, kuza kubakho inkxaso 3D kwisiqalo le ukhuseleko ngokupheleleyo umxholo losasazo.

Phakathi kwezinye izibonelelo:

• ukuthandwa umgangatho wonxibelelwano ochazwe abavelisi ekuhlaleni (Iinkampani ngaphezulu kwama-500 swi nokuphunyezwa 'isipili osasazo ");
• akukho kulibaziseka ngokucacileyo processing uphawu (ixabiso eliphantsi imodeli izinto lo mgaqo asisebenzi ngokupheleleyo);
• ithuba lokudlulisela "heavy 'ividiyo (FullHD);
• Ukunciphisa iinkqubo ezongezelelweyo (ngaphandle umthwalo kakhulu kwi ibhetri kwi smart / tablet).

Miracast kunye nobuthathaka yayo

Ngelishwa, amagama "ngaphandle iziphako" ngokuyenza oko kwenzeka ehlabathini lobuchwepheshe ophezulu-krelekrele. Isibakala sokuba Kwinguqulelo ekhoyo ngoku ye-Miracast (Android, kufuneka bathi, nje enye yokusebenza kweenkqubo ezininzi adibanisa nakwizibetho zabo nale umgangatho, kodwa abangakwaziyo zezintsu mobile yokonganyelwa kwalo ayikho uyathandabuza) iphosakele, lubonakala:

• kusekho ehambelanayo buthathaka (ngamanye amaxesha iwonga "uqhagamshelwano ezilindelekileyo ..." siboniswe kwikhusi, kodwa ukuqondwa kwe ukusebenza kwaye awukwazi ukufumana ubhalo olulandelayo-up);
• ukuxhasa sokulungiswa okukhulu kwi 1920x1200, ngelixa wayekhula kwemfuno 4k;
• ukusetyenziswa kwe kobunikazi H.264 codec;
• degree ayabiza yeemveliso yokugquma anokufumaneka kwi-software ebhodini, yaye "zekhompyutha" ukuphumeza technology (akukho iilogo malunga nokupakishwa / okanye devaysa yokuhlala).

Kwakhona, abasebenzisi abaninzi kubona engxakini xa usebenzisa i Miracast-igajethi uvinjwa nokusebenza eqhelekileyo Wi-Fi-intanethi. A iadaptha 2 channel-, njengokuba sisazi, asingabo bonke baxhotyiswa Smartphones kanye tablets (intsilelo liyasetyenziswa naxa Zinjengeqhezu iminikelo yePremiyamu). Okokugqibela, le Dynamics 30 FPS kunye 720x480 - iziqhubekisi iirhafu ezindilisekileyo kakhulu namhlanje, kodwa buthathaka bade ngamanye amaxesha musa ukufumana ukuqonda malunga inxalenye Isibonisi (kwividiyo screen enkulu iza uphakamisa buqapheleke).

Analogs neeyantlukwano yawo

iinkqubo zokusebenza, ngobubele-nye ukuya Miracast, - Android (ukusukela kuguqulelo 4.2 jelly Bean), Windows 8.1 (for desktop kwaye iifowuni) kunye Amazons ndzilo. Njengoko kuba PC ngokusekelwe kwi-Linux, ngoko ngaphandle kokonakalisa ukuphumeza ingqalelo eyaneleyo kwi sync kunye neemveliso ziqinisekisiweyo aziyi kuphumelela. Noko ke, huck igcwele lokungaphumeleli kwaye akuqinisekisi incoko eqhelekileyo phakathi umthumeli umamkeli-sikalini lomxholo. Abameli kuluhlu Apple akazange aqonde Miracast, ekubeni "tsolo" bokuqala ukuba idlalwe technology eqongeni.

Kakhulu Intel WiDi kunokuthiwa uxhulumaniso eqhelekileyo ixesha elide, ukuba kubekwe yipropathi igama elifanayo yi ombutho yaye ayifumaneki ukuba izixhobo kunye iziqhubekisi zomntu wesithathu. Kodwa ukukhululwa version 3.5 iza kutshintsha ngokupheleleyo.

nabalingani Wired kuphela ezimbini - MHL kunye uqhagamshelwano lwetshiphu emsebenzi. Of umahluko ocacileyo nokuphawula qhagamshelana isiseko intambo, nto leyo lula xa inxalenye sync kunye uphawu kunye Exchange data olutshintshatshintshayo uzinzo (Miracast kakhulu "SAGs", xa ikhusi kwakusenzeka inyathelo-zigcawu).

Miracast emehlweni abavelisi

Nangona ubuchwepheshe kwaye an open source code, ubuchule yayo lomfanekiso transfer wireless ikakhulu kugxininisa isakhono Windows kunye Android. Ngoko ayimangalisi into yokuba uluhlu labavelisi unyuka namaxesha, eziliqela ezingamakhulu izikhundla. Liyinyaniso elokuba, kukho iimeko kunye nenkqubo krakra ezinxulumene uhlaziyo yolawulo iqokobhe. Ngaloo ndlela, ingakumbi, waye ayixhaswa yi Miracast Windows 7 (nembambano leyo ingasonjululwanga nokuba indibano copyright okanye ukufakwa software abancedisayo).

Brand ezaziwa kakhulu, wabona "eluthandweni" Wi-Fi ngqo H.264:

• Qualcomm.
• MediaTek.
• AMD.
• Microsoft.
• Intel.

Kwixa elizayo kunye Miracast isikhundla

Ingcamango oseka uqhagamshelwano lwetshiphu emsebenzi-wireless, Kakade ke, umdla. Noko ke, ukubonisa kwi lwazi lwekhusi ezinkulu smart okanye tablet akunzima. Apho anzima - ukufumana ehloniphekile ezinye iprotocol SMARTs. Kwaye ngokuphathelele le nto, Miracast nje akuyi kakuhle.

Ngaphandle okhuphisana ngqo - idlalwe kunye Chromecast - aziphathe ngamaxesha athile "ngokubukekayo" kakhulu. Umzekelo, zenza kube lula ukuba uthumele ividiyo kwi big kwikhusi ngexesha siwele nge menu (ngaphandle kokubonisa ezi iinkcukacha ezifanayo umsinga ngesondo). ezincinane yesibini ezingemnandi uyeza ukudlala Imo - Miracast badla idlala ividiyo ukuya ekupheleni, hayi baphendule nokuba woluvo okanye woluvo umyalelo indawo / intshukumo devaysa umthombo (conjugation ngokupheleleyo wathembisa kwi firmware omtsha, ngoko "belele" smartphone efunda ukucima ngeprojektha isikrini ngaphandle ikhowudi extra umsebenzisi).

Ke kaloku, malunga ukufana ngeteknoloji DLNA. Miracast - i "indlela ngqo: kusasazwa" live "imifanekiso isisitheliso igajethi kwi esweni eyahlukileyo lwenzeka kwi algorithm elifutshane ngaphandle naziphi na iindawo zonxibelelwano olongezelelweyo. Phantsi DLNA abbreviation Uyayifihla imigangatho indibanisela raznosortnyh yonke. izixhobo okt kwe nokuqondana kufuna ubukho "itoliki" (umzila). Kwaye kwakhona, abathathi- Digital Living Network Alliance unako ukusebenza kuphela iifayile, nababini "Iqabane" Miracast umsebenzi umgaqo isipili ( "ebonisayo, welani"), kwaye ekusombululeni iingxaki ezithile lobugcisa ukwabelana isiqulatho kwi ungqamaniso elilelona.

Software Miracast ehambelanayo:-Windows version

On igosa page Microsoft iqulethe ulwazi malunga neemeko zokusebenza ezifunekayo apho kunokwenzeka ukuqalisa iseti esebenzayo technology Miracast.

Windows 8.1 - pre-efakwe okanye ivuselelwe "ngasixhenxe" - ibhekisa kwinani mfuno zisezantsi. Ukongeza, isibhengezo nokusebenza umgangatho uguqulelo usasazo RT 8.1 kunye neendibano OS kamva.

ukulungiselela computer / igajethi for engenazingcingo isiqulatho broadcast media kwi esweni

Izixhobo with "ezisibhozo" ebhodini uluhlu lweentshukumo ukuqinisekisa inkqubo losasazo amathumba phantsi iingongoma ezimbini:

1. izixhobo ungqamaniso (samaza kunye ngumamkeli) equlethwe kwindawo network signal.
2. Kusebenze "Projector" ukhetho.

Kwaye kukho ngeziganeko ezininzi kwemveliso umxholo. Umfanekiso / ividiyo, unga:

• ndisasaze indlela nempinda (ukubonisa ngaxeshanye 2 ubonisa);
• nombono kuphela esweni kwe-apparatus yokunyuselwa;
• ukudlulisela ngokutsala izinto ezinqwenelekayo ukusuka sikrini esikrinini.

Miracast and Android yokusebenza

abenzi elektroniki abaninzi bazama ukwenza izinto ezininzi zobugcisa Miracast. I-LG, umzekelo, ihlanganise oko Smartphones kanye shini anayo iminyaka eliqela. Musa barhuqe emva neenjineli Sony, Samsung, Panasonic - naphi na apho ahamba Android omdala kwe 4.2, eli oluqhelekileyo ukusebenza, njengoko bathi, ngokupheleleyo.

Imfuno transmission obutofotofo umxholo kuye kwakhokelela ekubeni kwinkxaso Miracast wada wenza loo mifuziselo TV leyo wehla line ibandla de-2012. isisombululo Technical waba uqhagamshelwano lwetshiphu emsebenzi-ezithile amaqhosha (amaqhoshana uphawu). Okwangoku, baye benza imveliso ezininzi zeenkampani ezahlukeneyo. Ngenxa yoko, imveliso esiza emarikeni, yaye nzulu zahluke ixabiso nomgangatho. Ngaphezu koko, le ndawo ukuba ibe ukungalingani nabasebenzayo: elinye adaptha ngamandla ukwakha "iibhulorho 'ngaphakathi Miracast umgangatho, omnye akubizi nantoni ukufumana' enivumelana" kunye Apple devaysa okanye ukumisa i "incoko yababini" kwi DLNA. Yiloo nto ngaphambi kokuba uthenge kubalulekile ukufunda kwiiforam weendawo kwaye atyelela amaziko esemthethweni abenzi.

Isishwankathelo dongle kakhulu ethandwa

ku Miracast Dongle amaxabiso ziyahluka kuluhlu 30-100 cu. Emva ukuthengwa kunye nofakelo zombini phantse nasiphi TV baxhotyiswa uqhagamshelwano lwetshiphu emsebenzi-izibuko, unako kuqhagamshelwa igajethi ngaphandle. Sithetha uqhagamshelwano ngqo ekuvumela ukuba ukudlala ividiyo 'ezinkulu "ngo-1920x1200 format.

Dongle Mocreo (.. 30-35 cu) - inkxaso kwaqinisekisa ezisemthethweni ezintathu: Miracast, idlalwe kunye DLNA.

"Amaqhosha" Amarhamba brand (70-80 at. E.), Ngokuqhelekileyo ingqalelo imigangatho efanayo njengoko Mocreo.

Iadaptha GeekBuying (50-60 cu ..) - inikezela mirror losasazo kwi algorithms Miracast kunye DNLA.

Ukongeza, kukho dongle ziyafumaneka ngokorhwebo kwaye original Wi-Fi Certified Miracast, aziwa phantsi olunye uhlobo umqondiso.