I-set-top box yandisa amandla e-TV. Ama-TV amadala angase angamukeli amasiginali e-DVB-T2. Iziteshi zesimanje zisakazwa ngale fomethi.

Kulokhu, kufanelekile ukuxhuma ibhokisi le-set-top elingakwazi ukunquma isignali yedijithali futhi iyiguqulele ku-analog. Kukhona namabhokisi aphezulu e-DVB-C (
ikhebula le-TV ), i-DVB-S ( i-
TV yesathelayithi ) namabhokisi okusetha phezulu anamamodi okusebenza ahlanganisiwe. Amabhokisi e -Smart set-top (
TV-Box ) kufanele abekwe esigabeni esihlukile. Bangakwazi ukuxhuma ngokuphelele noma iyiphi i-TV ku-inthanethi. [i-id yamagama-ncazo = “okunamathiselwe_7346” align = “aligncenter” wide = “800”]
Izimbobo zebhokisi le-digital set-top box lokuxhuma umamukeli ku-TV [/ amazwibela] Ngebhokisi eliphakathi, licela cishe ama-ruble angu-1,200, noma kusukela kuma-ruble angu-300 uma uqasha leli bhokisi elibekwe phezulu kumhlinzeki ikunikeza ukufinyelela eziteshini. Isigaba sokunethezeka samabhokisi abekwe phezulu siqala kuma-ruble angu-5,000, kodwa ngentengo yawo anikeza ukusebenza okubanzi: Ukufinyelela i-inthanethi, ukulawula kusuka kuhlelo lokusebenza ku-smartphone, kanye nekhwalithi ephezulu yesithombe.

Yini oyidingayo ukuze uxhume ibhokisi le-set-top ku-TV?

I-DVB-T2 ne-DVB-S2 set-top boxes idinga ukuthi izimpondo zisebenze ngendlela efanele. Ukucaciswa kufanele kuhlolwe nabaxhumanisi noma abantu abanolwazi ngala madivayisi: ikhwalithi yesiginali incike endaweni, inombolo yezindlu eziseduze, lapho izimpondo ziqondiswe khona nezinye izici.

[i-id yamagama-ncazo = “okunamathiselwe_7172″ align=”aligncenter” width=”610″]
DVB-T2 indinganiso yokusakaza[/caption] Futhi, ungakhohlwa ngekhebuli yothi: ubude bayo kufanele bulinganiswe kusengaphambili, kunikezwe umkhawulo omncane ukuhamba kahle. Futhi, noma yimaphi ama-set-top boxes adinga ikhebula ukuze axhumeke ngqo ku-TV ngokwayo. Lokhu kungaba ikhebula le-HDMI, esimweni sama-TV amasha, noma i-RCA noma i-SCART, esimweni sama-TV amadala kuneminyaka engu-6.

Ukuze unqume uhlobo lwekhebula okufanele uxhumeke kulo, udinga ukubheka ngemuva kwe-TV futhi uhlole izixhumanisi ezidingekayo noma uzihlole emiyalweni ye-TV.

Ububanzi bokulethwa kwe-TV set-top box – ikhebula

Kukhithi, ngaphezu kwebhokisi le-set-top ngokwalo, ungabona izintambo ezimbalwa zokuxhuma kuma-TV ahlukahlukene. Isibonelo, ikhithi ingase iqukathe ikhebula le-HDMI, i-RCA, i-SCART ne-S-Video

Nge-HDMI interface kukhona izinguqulo eziningana:

1. I-HDMI 1.2 – ikuvumela ukuthi ukhiphe isithombe se-FHD.
2. I-HDMI 4 – ikuvumela ukuthi ubonise izithombe ze-4K ngenani lozimele lama-30 fps.
3. I-HDMI 0 – ikuvumela ukuthi ukhiphe izithombe ze-4K ngenani lozimele lama-fps angama-60.

I-HDMI iyisixhumi esibonakalayo sedijithali esikuvumela ukuthi uxhume ibhokisi le-set-top kuma-TV amasha, futhi linemigqa yomsindo ezungezile. Kuma-TV amadala, kune-analog SCART interface, ebukeka njengesixhumi esibanzi esingunxande, i-S-VIDEO, ebukeka njengesixhumi esimnyama esinepulaki phakathi nendawo kanye ne-RCA, ebukeka njengemibala emithathu enemibala eminingi (ophuzi, omhlophe futhi red) ama-tulip plugs. [i-id yamagama-ncazo = “okunamathiselwe_7175″ align=”aligncenter” wide=”597″]
Isixhumi se-RCA[/caption]

Uma usebenzisa noma yikuphi kwalokhu kuxhumana, khona-ke ukulungiswa okuphezulu kuzoba amaphikseli angu-768 ngo-576, futhi izinga lozimele lizokhawulelwa ku-25 fps.

Amabhokisi amaningi we-TV anezimbobo ze-USB ezikuvumela ukuthi uxhume, isibonelo, i-USB flash drive futhi udlale noma iyiphi i-multimedia (umculo, ividiyo, izithombe). Ukuze udlale okuqukethwe kwe-FHD ngo-1920×1080 ukulungiswa, noma iyiphi i-USB 2.0 flash drive yanele, kodwa ngokulungiswa kwe-4K, okungu-3840×2160, udinga idrayivu yesizukulwane sesibili se-USB 3.1 (gen2) enomkhawulokudonsa okungenani wamagigabhithi angama-20 ngomzuzwana.
Kuyafaneleka futhi ukukhumbula ukuthi isilawuli kude kuphela esifakwe namabhokisi abekwe phezulu okuthola iziteshi ze-TV zedijithali. Kodwa ikhithi enamabhokisi aphezulu okusakaza isignali yesathelayithi nayo iqukethe isethi yezintambo ezidingekayo ukuze kuxhunywe uthi, namadekhoda.

Imishini eyengeziwe yamabhokisi abekwe phezulu

Uma ungakaze ubhekane nama-set-top boxes ngaphambilini futhi ungazi ukuthi ungawamisa kanjani kahle, ungathenga isethi yamabhokisi aphezulu kanye nekhibhodi engenantambo ngegundane. Amasethi anjalo angatholakala kaningi ngamamodeli we-premium, aqala kusuka kuma-ruble angama-5000. Igundane lizokusiza ukuthi ujikeleze isixhumi esibonakalayo sekhonsoli ngokushesha, futhi ikhibhodi izokusiza ukuthi uthayiphe umbhalo ngokushesha. Futhi, izesekeli ezengeziwe zihlanganisa izinhlobo ezihlukahlukene zezintambo zokunweba, ama-adaptha, ama-splitter nama-splitter, angaba usizo ekuxhumeni ama-TV amaningana ngesikhathi esisodwa.
Ungawaxhuma kanjani ama-TV amabili ebhokisini elilodwa lesethi yedijithali Tricolor :

Esinye isiphetho sekhebula le-HDMI kufanele sifakwe ebhokisini lokubeka phezulu ngokwalo. Imbobo ye-HDMI ngokuvamile itholakala ngemuva kwebhokisi le-set-top futhi. Uma uzobuka okuqukethwe ngokulungiswa kwe-4K, kuzomele ubheke izicaciso zebhokisi lokubeka phezulu kanye ne-TV futhi uthole ukuthi ziyasisekela yini lesi sinqumo. Kuyadingeka futhi ukuhlola ukukhiqizwa kwekhebula lakho le-HDMI, njengoba isizukulwane sinquma ukuthi isixhumi esibonakalayo singakwazi yini ukudlulisa okuqukethwe ekulungisweni okufunayo ngezinga lozimele elidingekayo.

Xhuma i-TV yakho nebhokisi lokusetha phezulu.

Uma yonke into ixhunyiwe, vula i-set-top box kusilawuli kude noma inkinobho ekuso, uma ikhona kukesi. [i-id yamagama-ncazo = “okunamathiselwe_6725″ align=”aligncenter” width=”900″] Ixhuma ibhokisi lokusetha nge-HDMI[/caption]

Vula i-TV bese ukhetha ibhokisi lokumisa phezulu njengomthombo wesignali. Ukuze wenze lokhu, cindezela inkinobho yokokufaka (ebuye ibizwe ngokuthi Umthombo – okukhiphayo noma umthombo) bese ukhetha imbobo ye-HDMI exhunyiwe.

Uma i-set-top box ixhunywe ngempumelelo, uzobona iwindi lezilungiselelo zokuqala zebhokisi lokusetha. Uma ubona umlayezo mayelana nokungabikho kwesignali noma isikrini esimnyama, qiniseka ukuthi ikhebula le-HDMI kanye nebhokisi lokusetha phezulu kuyasebenza, futhi uhlole ukuthi ibhokisi lokumisa phezulu lixhumeke ku-TV.

[i-id yamagama-ncazo = “okunamathiselwe_3508″ align=”aligncenter” width=”688″]
Ibhokisi lokusetha lixhuma ku-TV kusetshenziswa i-HDMI[/caption]

I-TV endala

Umhlahlandlela wangaphambilini uchaze izinyathelo zokuxhuma ibhokisi le-set-top kuma-TV amasha ngekhebula le-HDMI. Uma uxhuma ibhokisi le-TV elidijithali ku-TV endala, kufanele unake isixhumi ozoxhuma ngaso ibhokisi lokusetha phezulu ku-TV.

1. Ezimweni eziningi, uxhumano lwenziwa nge- RCA isixhumi , esibukeka njengamapulaki amathathu aphuzi, abomvu namhlophe – ama-tulips. Xhuma isiphetho sokuqala sekhebula ku-TV kanye nebhokisi lokubeka phezulu. Qiniseka ukuthi imibala yezixhumi ebhokisini elibekiwe noma i-TV ifana nombala wepulaki exhunyiwe . Uma imibala ingamakwanga ku-set-top box noma ku-TV, faka amapulaki ngokungahleliwe uze uthole isithombe noma umsindo. Uma ufaka ipulaki esokhethini okungalungile, akukho lutho oluzokwenzeka – kuphephe ngokuphelele kuwe nakumishini. [i-id yamagama-ncazo = “okunamathiselwe_7351″ align=”aligncenter” wide=”650″] Isixhumi se-RCA[/caption]
2. Kwesinye isikhathi kufanele uxhume ngesixhumi se- SCART . Ukuyibona kulula: I-SCART ibukeka njengesixhumi esingunxande side esinamapulagi ayisicaba ngaphakathi. Inzuzo yayo itholakala eqinisweni lokuthi ingaxhunywa ohlangothini olulodwa kuphela ngenxa yesimo sayo se-asymmetrical, ngakho-ke kunzima kakhulu ukwenza iphutha lapho uxhuma ibhokisi le-set-top ku-TV.
3. Indlela yesithathu yokuxhuma i-set-top box ku-TV i -S-Video , isixhumi esiyindilinga esivame ukuba nombala ophuzi noma omnyama. Ingadideka kalula nesixhumi se-RCA, ngakho-ke uma ungenaso isiqiniseko ngoxhumo olulungile, bheka imiyalelo ye-TV ne-set-top box bese uqinisekisa indawo yalesi sixhumi.

Ungaxhuma kanjani ibhokisi elibekwe phezulu ku-Samsung TV isinyathelo ngesinyathelo – imiyalo yevidiyo: https://youtu.be/ZyHYPUSqF3U

Kukhona futhi izimo lapho ibhokisi le-set-top line-HDMI ephumayo kuphela, futhi i-TV endala inemiphumela ye-analog kuphela. Kulokhu, udinga ukuthenga isiguquli esiguqula isignali yedijithali ibe yi-analog. Ezinye zalezi ziguquli zingase zidinge amandla e-USB, angatholwa ngokuxhuma isiguquli embobeni ye-USB ebhokisini lokusetha eliphezulu ngokwalo. Ungaxhuma kanjani i-digital set-top box ku-LG TV futhi uvule iziteshi: https://youtu.be/LuMUNZTLb8s

Ungaxhuma kanjani ibhokisi le-set-top kuma-TV amaningana ngesikhathi esisodwa

Ukuze uxhume ama-TV amaningi ngesikhathi esisodwa, kufanele uthenge isihlukanisi sekhebula le-HDMI. I-splitter enjalo ibiza cishe ama-ruble ayinkulungwane. Ikopisha isignali yokuphumayo bese isakaza kuyo yonke imiphumela yayo ye-HDMI. Uma usebenzisa ikhebula le-RCA, udinga isihlukanisi sesignali ye-analog, ebiza kusuka kuma-ruble angu-400. Umgomo wokusebenza kwawo ufana ne-splitter ye-HDMI, kodwa ikhwalithi yimbi kakhulu. [i-id yamagama-ncazo = “okunamathiselwe_7190” align = “aligncenter” wide = “550”]
Ngebhokisi le-set-top, ungakwazi ukuxhuma umabonakude wedijithali kuma-TV amabili amadala [/ amazwibela] Uma ufuna ukubuka amashaneli ahlukene emakamelweni ahlukene, ungakwazi ukuxhuma amabhokisi okusetha phezulu ambalwa eluthini olulodwa. Ukuze wenze lokhu, uzodinga isihlukanisi se-antenna esisebenza ngemvamisa ye-1000 Hz. Ivumela wonke amadivayisi ukuthi athole isignali efanayo. [i-id yamagama-ncazo = “okunamathiselwe_3059″ align=”aligncenter” wide=”500″]
Ixhuma amadivayisi amaningi[/caption]

Izinkinga nezisombululo ezingenzeka

1. Isithombe siyanyamalala, sibe yiqhwa, noma “sibhidlike” . Lokhu kungenxa yokuma okungalungile kwe-antenna kanye nokuxhumana kwayo ne-set-top box. Zama ukuyisa uthi endaweni ehlukile futhi ubone ukuthi injani ikhwalithi yesiginali.
2. I-set-top box iyasebenza, kodwa uma uzama ukuvula isiteshi, kuboniswa “umsindo omhlophe” noma isikrini esimnyama esikhundleni sesithombe . Uma amashaneli ekade esebenza, kodwa manje asikho isithombe, khona-ke amaza eziteshi cishe awasethwanga ngendlela engalungile. Lokhu ngezinye izikhathi kwenzeka ngemva kokubuyekezwa kwe-firmware yebhokisi elimisiwe noma ukwehluleka kwamandla okuholela ekuvaleni ngaphambi kwesikhathi. Kulokhu, ukulungisa kabusha (ukusesha) kweziteshi kuzosiza.
3. Isithombe asicacile noma asifiphele . Le nkinga ibangelwa ukukhetha okungalungile kwesixazululo ebhokisini le-set-top, eliphansi kunokulungiswa kwe-TV.
4. I-set-top box ayikwazi ukudlala i-movie eqoshwe ku-flash drive. Ngokunokwenzeka, ibhokisi le-set-top alikwazi ukudlala amafayela efomethi imuvi erekhodwe ngayo. Isibonelo, imuvi nanoma yiliphi elinye ifayela levidiyo okufanele lidlalwe ku-TV set-top box liqoshwe ku-flash drive kusandiso se-.mov, ibhokisi lokusetha elingakwazi ukudlala ngenxa yemikhawulo yesofthiwe ebekwe umenzi wayo. isizathu esisodwa noma esinye. Ukuze uxazulule le nkinga, udinga ukuguqula ifayela levidiyo lokuqala libe isandiso esisekelwayo usebenzisa uhlelo olukhethekile noma isevisi ye-inthanethi, noma ulande elinye ifayela elinesandiso esisekelwayo. Ukuze uthole ukuthi ingabe ibhokisi lakho eliphezulu liyasisekela yini isandiso esithile, funda imiyalelo yaso, okufanele ngabe ifakiwe kuphakheji. [i-id yamagama-ncazo = “okunamathiselwe_7245” align = “aligncenter” wide = “640”]Futhi, uma i-TV ingaphenduli ezinkinobho noma kwisilawuli kude futhi ingashintshi amashaneli, ungasetha kabusha i-TV usebenzisa inkinobho yokusetha kabusha kuphaneli engemuva [/ amazwibela]
5. Ibhokisi lokusetha alikwazi ukuxhuma ku-inthanethi . Qiniseka ukuthi inethiwekhi yakho ye-Wi-Fi ixhunywe ku-inthanethi futhi isebenza kahle nenye idivayisi exhunywe kunethiwekhi efanayo. Futhi hlola ukuthi isivinini sakho sokuxhuma ku-inthanethi okungenani singu-2-3 megabits ngomzuzwana. Uma i-set-top box lisangakwazi ukuxhuma ku-inthanethi, noma uxhumano lwenethiwekhi selumisiwe, kodwa lutho ukulanda, shintsha izilungiselelo ze-DNS kumenyu yezilungiselelo zebhokisi-phezulu. Cacisa imaski ye-subnet 255.255.255.0 kanye neseva ye-DNS 8.8.8.8 noma 8.8.4.4. Idatha yeseva ye-DNS ingeye-Google futhi ngokuvamile isebenza izinze kakhulu kunaleyo ekhethwe ngokuzenzakalela ngesikhathi sokusetha kokuqala koxhumano lwenethiwekhi.

Ungawamisa kanjani amashaneli

Ukuze uqale ukubuka iziteshi ze-TV, udinga ukukhetha ibhokisi le-TV eliwumthombo wesignali. Bese udinga ukuya kuzilungiselelo ze-set-top box futhi uthole into yezilungiselelo zesiteshi (ngezinye izikhathi ucinge iziteshi).

Kungcono kakhulu ukusebenzisa ukusesha okuzenzakalelayo kwamashaneli e-TV. Phakathi nenqubo yokusetha, i-set-top box ngokwalo izohlola wonke amafrikhwensi bese ikhetha lawo lapho kusakazwa khona iziteshi ze-TV. Uma ukushuna okuzenzakalelayo kungazange kusize, kufanele usebenzise ukusesha kwesiteshi okwenziwa mathupha. Kulokhu, udinga ukushintsha amafrikhwensi mathupha futhi ubheke ezifanele. Ukuvama kwesiteshi esithile kungatholakala kuwebhusayithi yesiteshi.