IPTV - Gịnị ka ọ bụ? IPTV playlist. Olee otú iji melite IPTV?

Naa, na-esiwanye nụrụ banyere ndị dị otú ahụ ọrụ dị ka mmekọrịta telivishọn, ma ọ bụ IPTV. Gịnị ka ọ bụ? IPTV bụ a usoro site na nke telivishọn ọrụ na-bụrụhaala na eji a set nke internet protocol via a Packet Switched netwọk (obodo ma ọ bụ zuru ụwa ọnụ), kama data nyefe site omenala terrestrial na satellite n'ókè na cable formats. N'adịghị ka ọkọlọtọ downloadable media, mmekọrịta TV awade ike enuba ọmụma na obere soje ichekwa abịa kpọmkwem site isi. N'ihi ya, onye ọrụ nwere ike ịmalite n'ụdị nke data (eg, a nkiri), tupu dum file na-agafere. Ọ na-amara dị ka gụgharia media.

Ịza ajụjụ nke «IPTV - Gịnị ka ọ bụ?", Ị ga ozugbo-ahụ kwuru na ọ bụ dị iche iche site na Internet TV, ebe ọ bụ na ya, mmejuputa iwu-adị na ndabere nke Telecommunication netwọk na elu-ọsọ ohere ọwa na data na-agafere na ọgwụgwụ ọrụ via set-top igbe ma ọ bụ ndị ọzọ ahịa na ngwá.

IPTV - listi ọrụ

IPTV-ọrụ nwere ike kere atọ subspecies:

• Live-ebute site ná site ugbu a na agbasa ozi n'ikuku TV.
• TV na oge ikpeazụ: replays TV na-egosi, nke aired a awa ole na ole ma ọ bụ ụbọchị gara aga, na ugboro ugboro playback nke video nnọọ na ị na-ele.
• Video na ina (VOD): ike ele video directory na-adịghị metụtara na omume telivishọn.

IPTV - ihe ọ bụ: definition nke technology

Kemgbe ụwa, ya emewo ọtụtụ dị iche iche na mgbalị na-enye a definition nke IPTV. Nke a technology na-kọwara dị ka a set nke elementrị iyi ma ọ bụ iga nke IP dabeere na netwọk, nakwa dị ka a ọnụ ọgụgụ nke proprietary usoro.

Otu ukara definition mma site International Telecommunication Union. Dị ka ya IPTV - na ọ bụ multimedia ọrụ (TV / nyefe video / audio / ederede / ndịna / ọzọ data site IPTV-player), natara na IP dabeere na netwọk. Na ha, mmejuputa iwu-amama enye ihe zuru ezu larịị nke ọrụ, nchekwa, pụrụ ịdabere na interactivity.

Dị ka ọzọ eze ghọtara isi mmalite, IPTV a kọwara dị ka a mma na a pụrụ ịdabere nnyefe ka debanyere aha ntụrụndụ video na metụtara ọrụ. Ha nwere ike na-agụnye ihe atụ, video on ina (VOD) na mmekọrịta telivishọn (ITV). Ha na-dị site hà-Switched netwọk nke na-eji IP protocol ibufe audio, video ma na-achịkwa n'ókè. N'ụzọ dị iche na video na World Wide Web, mgbe ị na-amalite IPTV amama ịnọgide na-enwe nchebe karị na netwọk arụmọrụ, dapụtara na ihe Iweputa na agbasa ozi n'ikuku.

Olee otú ịzụlite a TV?

The technology na mbụ ịghọta site ala etoju nke brọdband penetration na dịtụ elu na-eri nke wụnye wiring ike nke na ụgbọ njem IPTV content reliably na ahịa 'obibi. O sina dị, ojiji nke IPTV taa bụ esiwanye nkịtị, na ọnụ ọgụgụ nke ndị debanyere aha na-aga n'ihu na-eto eto.

ọcha

Hardware TV - na nke a bụ akụkụ ebe nzobe, ezoro ezo ma nyefee n'ụdị IP multicast TV ọwa iyi.

VOD n'elu ikpo okwu - a ebe akụ na-emi odude video (IPTV playlist) dị na ina. Ha na-arụ ọrụ mgbe onye ọrụ na-eme ka a arịrịọ n'ụdị IP unicast iyi.

Interactive portal na-enye ohere ọrụ ịnyagharịa n'ime ihe dị iche iche IPTV-ọrụ (dị ka VOD katalọgụ).

ọkọnọ netwọk - hà-Switched netwọk, nke na-agụnye IP-ngwugwu (unicast na multicast).

Home TV Gateway - akụkụ nke ọrụ ngwá, nke akara ahụ ebighị nke nnyefe nke ozi ma ọ bụ gbanyụọ ya.

Smart IPTV: akụkụ nke a ọrụ ígwè na-decodes na deciphers TV na VOD-ọdịnaya na-egosiputa ya na TV na ihuenyo.

The ije nke video nkesa netwọk

Ntem, netwọk ije, na-eweta ọrụ, e nwere isi ihe abụọ na ụdị video server ije. Ha nwere ike ga-atụle nke nkenye ọnọdụ nke IPTV (set-elu na mmejuputa iwu). Umu anumanu na osisi na-akpọ centralized na-ekesa.

Centralized Architecture nlereanya bụ a dịtụ mfe na mfe jikwaa ngwọta. Ka ihe atụ, ebe ọ bụ na ọdịnaya niile na-echekwara na ndị ukwu nkesa, ọ dịghị achọ a mbara ọdịnaya nkesa usoro. The centralized ije, dị ka a na-achị, dị mma ruru eru maka netwọk, na-enye a dịtụ obere nkenye ọnọdụ nke VOD-ọrụ nwere zuru ezu ike isi na oru oma content nnyefe netwọk (CDN).

Ekesa Architecture bụ nnọọ dị ka scalable ka centralized nlereanya, Otú ọ dị, o nwere ike nke isi ojiji, nakwa dị ka usoro management ọrụ na-mkpa jikwaa nnukwu nkesa na netwọk.

Rụọ onye Akpara idokwa a dịtụ ukwuu usoro kwesịrị ibido itule iwebata a na-ekesa ije, site ná mmalite, na ogbo nke atụmatụ IPTV njikọ. Gịnị ka ọ pụtara? Nke a na umu-achọ ya nwere ọgụgụ isi na ọkaibe data nkesa technology dịkwuo irè nnyefe nke multimedia ọdịnaya n'elu a na-eweta ọrụ na netwọk.

home Networking

N'ọtụtụ ọnọdụ, netwọk ọnụ ụzọ ámá na-enye a njikọta na netwọk ohere na Internet, bụghị nso IPTV akụrụngwa (ka-top igbe). Nke a dịruru ná njọ na-aghọ nnọọ nkịtị, otú na enye na-amalite na-enye ọrụ nchịkọta na otutu Mgbakwụnye ka a otu ụtụ magazin.

Network teknụzụ na-eji nke a ẹdude home wiring (e.g., ike edoghi, ekwentị edoghi ma ọ bụ coaxial Gịnị) ma ọ bụ nka na uzu ikuku na ngwa, na-a nkịtị ngwọta nsogbu a. Nke a pụtara na mgbe ị jikọọ IPTV set-elu na njikọ bụ ọtụtụ ihe ngwa ngwa.

uru

Internet Protocol dabeere n'elu ikpo okwu na-enye ịrịba uru, gụnyere ike iwekota telivishọn na ndị ọzọ ọrụ ndị dabeere na IP (brọdband Internet ohere na VoIP).

Switched IP netwọk na-enye ohere nnyefe nke budata ọzọ ọdịnaya na arụmọrụ. N'ihi ya, ndabara playlist IPTV ike na-enye ihe karịrị a mgbe TV omume. Na a typical TV ma ọ bụ satellite netwọk iji ohuru video technology niile ọdịnaya mgbe niile na-aga "downstream" ka onye ọ bụla ahịa.

The ọrụ nwere ike họrọ otu n'ime ndị nhọrọ - na-ele-ebute site ná naanị site na otu nke plurality nke USB ma ọ bụ satellite TV ọwa. Switched IP dabeere na netwọk na-arụ ọrụ dị iche iche. Content-anọgide na netwọk, na ka anya dị ka ndị ahịa na-ahọrọ a kpọmkwem ọdịnaya, enye ozugbo amalite ohuru.

Otú ọ dị, nke a pụtakwara na ike n'ezi ihe nke ahịa na nzuzo ike mie ala ka ukwuu karịa bụ omume na omenala TV ma ọ bụ satellite netwọk. IPTV technology ngwaọrụ (setịpụrụ-top igbe na ọdịda ya) onwe ya nwere ike ije ozi dị ka a esi na-agbaji ma ọ bụ ọ dịghị ihe ọzọ ime ka a malfunction nke nkeonwe netwọk.

interactivity

IP-ikpo okwu na-enyekwa ịrịba atụmatụ iji mee ka na-ekiri TV ọzọ mmekọrịta na ahaziri. Smart IPTV eweta nwere ike, n'ihi na ihe atụ, na-enye otu mmekọrịta Program Guide na-enye ohere na-ekiri ịchọ ọdịnaya site na aha ma ọ bụ omee aha, ma ọ bụ na-enye arụmọrụ nke "picture-in-picture" na-enye gị ohere na-ele menu ibonke omume ịbụ na agbasa ozi n'ikuku. Ekiri ga-enwe ike ịhụ ọnụ ọgụgụ na akara mgbe na-ekiri a egwuregwu egwuregwu, ma ọ bụ ịchịkwa igwefoto n'akuku.

Ọrụ nwere ike na-na-ohere ele foto ma ọ bụ na-ege ntị music na gị na TV, mmekọrịta ya na kọmputa gị, ma ọ bụ ọbụna na-eme ka ndị nne na nna njikwa.

Iji rụrụ na mmekọrịta dị n'etiti-erite na transmitter achọ nzaghachi ọwa. Banyere nke a, terrestrial, satellite na cable netwọk, kere telivishọn, agaghị ekwe ka ị jikọọ interactivity. O sina dị, o nwere ike ịbụ na o kwere omume site na ijikọta na telivishọn na netwọk na data netwọk.

Video na-enwe Ịnụrụ

IPTV Smart TV technology na-enye video on ina technology (VoD), nke na-enye ohere ahịa na-agagharị na ihe online omume ma ọ bụ film katalọgụ, họrọ a kpọmkwem ndekọ. The na agbasa ozi n'ikuku nke ahọrọ item amalite fọrọ nke nta n'otu ntabi na gị na TV ma ọ bụ PC.

Site a technical echiche, mgbe a ahịa ahọrọ a nkiri, a unicast ehiwe njikọ n'etiti ndị ahịa si decoder (ịtọ n'elu igbe ma ọ bụ PC) na ebunye ndị gụgharia nkesa. Oti mkpu na management arụmọrụ (kwusi, ngwa ngwa ngagharị, rewaindi na na. D.) a na-nyere site RTSP (Real Time gụgharia Protocol).

The kasị codecs eji na IPTV-ọkpụkpọ maka VoD, bụ MPEG-2, MPEG-4 na VC-1. Ná mgbalị iji zere content piracy VoD ọdịnaya a na-emekarị-ebute site ná na ezoro ezo ụdị. Ọ bụ ezie na izo ya ezo nke satellite na cable telivishọn Broadcasting - ochie, ntoputa nke IPTV-technology nwere ike hụrụ dị ka otu ụdị nke dijitalụ rights management. The film, nke a họọrọ, ka ihe atụ, nwere ike na-egwuri n'ime 24 awa mgbe ugwo, mgbe nke ahụ video bụ agaghịkwa dị.

IPTV dabeere Converged Services

Ọzọ uru bụ ekwe omume nke mwekota na convergence. Ọ na-enwekwukwa mgbe eji IMS ngwọta ndị dabeere. Converged ọrụ na-egosi na mmekọrịta nke ẹdude ọrụ ike ọhụrụ uru-kwukwara na ngwaahịa.