Hais txog Kev Sib Tham Thoob Plaws Nyog Nrog Koj

Sib tham txog kev sib tham nrog video nrog koj

Lub rooj sib tham video ua tiav tag nrho yog feem ntau ntawm kev sib tham video, qhov chaw tswj hwm MCU, network management software, kev sib txuas network thiab lwm yam khoom siv.

IVideo conferencing davhlau ya nyob twg

Lub rooj sib tham video sab laj siv los encode thiab pob video thiab suab ntaub ntawv, thiab muab xa mus rau tej thaj chaw deb kawg ntawm lub network. Nyob rau tib lub sijhawm, nws tau txais cov ntaub ntawv los ntawm cov chaw xaus, cov hnab ntawv thiab txiav txim siab, thiab kho cov duab thiab cov suab paj nruag rau cov cuab yeej ntawm tus neeg sab nrauv. Hauv ntej, lub rooj sab laj thev naus laus zis hauv kev sib tham yog qhov cuab yeej ua ntej hauv chav sib tham. Nws muaj peb lub ntsiab video video conferencing: cov duab, teeb saum, rooj sib tham.

1. Cov davhlau ya dav hlau duab

Desktop terminals yog sophisticated ua ke ntawm cov haib duab los sis lub laptop computers nrog cov koob yees duab zoo (built-in lossis sab nraud), ISDN phaib los yog network cards, thiab video conferencing software. Nws ua kom cov neeg nyob hauv koj lub rooj los sis mus ncig xyuas koj hauv cov rooj sib tham thiab muaj kev sib tham tim ntsej tim muag nrog koj. Cov Ntaub Ntawv Cob Qhia Tseem Ceeb: Cov duab ua lag luam duab thev naus laus zis feem ntau yog muab rau cov neeg tshwj xeeb hauv lub chaw ua haujlwm lossis cov neeg ua haujlwm hauv kev mus ncig ua si. Cov kev sib tham hauv TV nrog lub rooj sib tham txhawb ntau lub rooj sib tham (piv txwv li, cov rooj sib tham nrog ntau tshaj ob qhov chaw sablaj), tiam sis feem ntau yog siv rau cov rooj sib tham rau cov phooj ywg (piv txwv, ib tus neeg sib tham nrog lwm tus). Niaj hnub, mobile terminals xws li ntsiav tshuaj computers thiab smart phones yuav ua mobile video conferencing terminals los ntawm kev txhim kho cov ntawv tshwj xeeb.

2. Teeb lub thawv rau sab saum toj

Lub npov sab saum toj lub thawv ntawv yog paub txog nws txoj kev yooj yim. Hauv ib chav tsev, txhua yam kho vajtse thiab software tso rau hauv TV. Cov installation yooj yim thiab cov khoom siv hluav taws xob. Qhov qhib rooj sib tham hauv video tsuas yog yuav tsum muaj lub TV zoo tib yam thiab ISDN BRI kab los yog LAN. Video conferencing terminals kuj tseem tuaj yeem ua haujlwm peripherals xws li daim ntawv pov thawj thiab lwm yam khoom siv los txhim kho kev ua haujlwm. Cov Kev Siv Laj: Cov txheej txheem rau sab saum toj yog feem ntau sib koom sib pab ntawm cov tuam tsev, tsim nyog rau cov koom haum ntawm txhua qhov ntau thiab tsawg, los ntawm cov tuam txhab txawv tebchaws rau cov lag luam me, thiab feem ntau yog cov chav sib tham thaum sib tham ntawm cov tuam txhab.

3. Lub rooj sib tham chav sib tham

Lub rooj sib tham chav sib tham tau muab txhua qhov kev sib tham video uas yuav tsum tau muaj, feem ntau kev sib tham hauv chav sib tham. Lub rooj sib tham chav sib txuas lus feem ntau yog siv ntau yam khoom siv, xws li cov suab tshuab, cov koob yees duab ntxiv, daim ntawv xov tooj, thiab cov ntaub ntawv sib txuas lus nrog PC. Dual-screen zaub, kev sib txuas lus nplua nuj, kev xaiv cov duab kos thiab cov ntawv nyeem ua rau lub davhlau ya nyob twg los ua ib qib siab, cov khoom tsim. Cov ntawv tseem ceeb: cov chav sib tham hauv chav sib tham yog tsim los rau cov lag luam loj thiab nruab nrab.

II. Txog MCU

MCU yog lub npe ntawm cov khoom siv cuab yeej tswj hauv kev sib tham video. Nws hu ua Multipoint Control Unit, hu ua Multoint conference controller. Nws yog cov cuab yeej tseem ceeb ntawm kev sib txoos video sib tham. MCU ua raws li "hloov" hauv kev sib tham video. Tom qab ua ke sib cais, MCU muab suab, video, cov ntaub ntawv thiab lwm yam ntaub ntawv thiab qhia tawm ntawm cov xov xwm khiav ntawm txhua qhov chaw sib tham, thiab xa tawm cov lus qhia thiab kev qhia ntawm txhua qhov chaw sib tham rau tib tus txheej txheem ua kom tiav cov suab sib txuas los yog hloov. Lub sijhawm ua haujlwm sib txuas los yog hloov, cov ntaub ntawv tshaj tawm thiab kev tswj, sijhawm thiab kev sib tham, thiab thaum kawg cov ntaub ntawv ntau ntxiv los ntawm lub rooj sib tham yuav raug qhib thiab xa mus rau cov khoom siv hluav taws xob.

MCU tau pom zoo nrog peb hom ntaub ntawv:

1. video teebmeem: feem ntau ntawm video processor.

2. lub teeb liab lub suab: yog los ntawm lub tshuab ua suab los ua cov ntaub ntawv pib;

3. cov teeb meem cov ntaub ntawv: feem ntau ntawm cov ntaub ntawv processor.

Tsis tas li ntawd, lub network interface module thiab kev tswj hauv lub MCU qauv tseem ceeb heev. Tus tswj processor yog qhov tseem ceeb tshaj plaws rau kev txiav txim siab txog kev ncaj ncees, sib tov los yog hloov suab, yees duab, kev qhia cov ntaub ntawv, thiab kev sib tham tswj.