Indlela yokukhetha kunye nendlela yokudibanisa intambo ye-optical yesandi kwi-TV

Intambo ye-Optical yesandi xa iqhagamshelwe kwiTV – ziziphi iingenelo, isebenza njani, indlela yokukhetha intambo yomsindo we-acoustic.

Ukuze usebenze ngeteknoloji yanamhlanje, kuba yimfuneko ukuqinisekisa ukuhanjiswa kolwazi oluninzi ngesantya esiphezulu. Kwiimeko ezininzi, iingcingo zetsimbi kunye neentambo zazisetyenziselwa le njongo. Kwiimeko ezininzi, baye bahlangabezana nalo msebenzi, kodwa ekuhambeni kwexesha, amandla abo ngamanye amaxesha anokusilela. Le ngxaki ibangelwa kukuba ukuhanjiswa kweempawu zombane kuneempawu ezibalulekileyo ezithi ngamanye amaxesha zithintele iiparamitha zokusebenza ezifunekayo ukuba zifezekiswe:

1. Okukhona ubuninzi bokusetyenziswa rhoqo, ngokukhawuleza ukubola kuya kwenzeka.
2. Xa uhambisa imiqondiso, amandla asasazwa kwindawo ejikelezileyo. Ukuqina konyuka ngokunyuka kwamaza.
3. Ukuhamba kwe-alternating current kudala i-magnetic field ephazamisa iingcingo ezikufutshane.

Ngaloo ndlela, xa uhambisa ulwazi ngesantya esiphezulu kwiingcingo zetsimbi, kukho izinto ezithintela ukwanda okuqhubekayo ekusebenzeni. Ukusetyenziswa kweentambo ze-fiber optic kuya kuvumela ukuhanjiswa kwedatha kweminye imigaqo yomzimba. Umsebenzi wabo umi ngolu hlobo lulandelayo. Intambo yinyanda yefibers, nganye equlathe indawo esembindini ecacileyo kunye nesheath. Le yokugqibela ayikhuseli kuphela iifiber kumonakalo womatshini, kodwa ineempawu ezibonakalisayo. Ukuhanjiswa kokukhanya ngefayibha yentambo yokukhanya:
I-signal carrier yintsimbi yokukhanya, ethi, ngelixa idlula kwi-fiber, ibonakaliswe ngokuphindaphindiweyo kwiindonga zayo, ngokufanelekileyo ngaphandle kokulahlekelwa amandla ayo. I-diameter encinci ibenza babe bhetyebhetye, bavumela ukuba bahanjiswe naphi na apho kufuneka khona. Ulwazi lufakwe kwikhowudi ngokumodareyitha ukukhanya okukhanyayo ngelaser. Xa ifikelela kwindawo eya kuyo, i-decryption yenziwa ngokusebenzisa i-photodetector. Ngaloo ndlela, amazinga okudluliselwa kolwazi ukuya kuthi ga kwiiterabhithi ezininzi ngesekhondi anokuphunyezwa. Nangona kunjalo, esi santya siphezulu sinokufezekiswa kuphela ngomgangatho ophezulu kakhulu wefiber optical. Ukusetyenziswa kwayo kubonelela ngezibonelelo ezilandelayo:

1. Isantya esiphezulu kunye nesixa esibalulekileyo sedatha edlulisiweyo.
2. Iqondo eliphezulu lokukhusela ekuphazamisekeni kwangaphandle.
3. I-cross-section encinci, evumela ukuba intambo ihanjiswe naphi na apho ifuneka khona.
4. Akukho mngcipheko wokuqhekeka ohambelana nobukho bombane ophezulu.
5. Akukho ndlela yokukopa idatha ngokufihlakeleyo ecaleni kwendlela yomqondiso ngaphandle kokonakalisa ifayibha.

Nangona kunjalo, ngexesha lokusebenza kweentambo zomsindo wedijithali, kuya kufuneka ujongane nezi zinto zingeloncedo zilandelayo:

1. Xa ubeka, akunakwenzeka ukwenza ukugoba okubukhali. Oku kungonakalisa intambo.
2. Ukufunda nokubhala ulwazi ngentambo yomsindo obonakalayo, kufuneka izixhobo ezikhethekileyo.
3. Akunakwenzeka ukudibanisa iingcingo usebenzisa i-twisting. Ukufezekisa le njongo, iziphelo kufuneka zithengiswe kunye.

Ukusetyenziswa kwefiber optical ukuhanjiswa kweempawu ze-acoustic kuqinisekisa ukuveliswa komgangatho ophezulu. Le ndlela ithathwa njengowona mgangatho uphezulu wokuhambisa i-analog audio. Izihlanganisi zokujonga ukusasaza isandi kwiTV:
Xa usasaza isiginali yesandi, ukusetyenzwa kwenzeka kwizigaba ezininzi:

1. Ukuguqulwa kokuqala ukusuka kumbane ukuya kwi-optical.
2. Ukudluliselwa ngentambo yefiber optic.
3. Ulwamkelo loMqondiso.
4. Iguqulwa ukusuka kwi-optical ukuya kwifomu yombane, kwaye emva koko kudlalwa kwakhona.

Nangona kukholelwa ukuba akunakwenzeka ukusika kunye nokudibanisa iintambo ze-optical, kwezinye iimeko oku kunokwenziwa ngesandla, kodwa ngempazamo encinci, umgangatho wokuhambisa uya kuhla ngokukhawuleza. Ngoko ke, kungcono ukusebenzisa ezo ntambo zenziwa kwaye zilungiswe ngendlela yoshishino.

Ngoku iiTV zoqhagamshelwano zisebenzisa ngokusebenzayo i-HDMI isixhumi, esibonelela ngomfanekiso ophezulu kunye nokuhanjiswa kwesandi.

Umbuzo uvela malunga nokuba kuyimfuneko kangakanani ukusebenzisa i-fiber optical ukuhanjiswa kwesandi. Isenokungasebenzi kuzo zonke iimeko. Ngokomzekelo, ukuba ufuna ukudibanisa ngokuhlukileyo umdlali okanye omnye umthombo wesandi, ngoko kule meko intambo ye-optical iya kunceda ukuseka uxhulumaniso oluphezulu.

Zeziphi iintlobo zeDigital Audio Out Optical zikhona

Umgangatho we-S/PDIF usetyenziselwa ukuhanjiswa komsindo. Imele “iSony/Philips Digital Interface Format”. Ukuyiphumeza, ungasebenzisa iindidi ezimbini zeentambo:

1. ICoaxial isebenzisa izihlanganisi zeRCA. Olu khetho ngokuthe ngcembe luba yinto yexesha elidlulileyo, lunika indlela ye-fiber optic cable. Nangona kunjalo, izixhobo ezininzi zomsindo zineziqhagamshelo ezinjalo zoqhagamshelwano. Ingasetyenziswa, kodwa le teknoloji ayiyi kukunceda ufumane isandi esifanelekileyo.
2. I-Fiber optic ibizwa ngokuba yi-TOSLINK . Ikuvumela ukuba ufumane isandi esikhulu, kodwa ngexesha elifanayo iteknoloji yokudibanisa ihlala ilula. Ukusetyenziswa kwayo kuya kuxhaphaka ngakumbi.

I-TOSLINK ngoku isetyenziswa ngokuqhelekileyo kulo mgangatho, ngoko igama layo kunye ne-S/PDIF zidla ngokusetyenziswa ngokutshintshanayo.
Uqhagamshelwano lwe-Optical lunokuba yi-monomode okanye i-multimode. Kwimeko yokuqala, umgangatho wokuhambisa umqondiso uya kuba phezulu, ekubeni kwimodi ye-multimode, imisebe ibonakaliswe kwii-angles ezahlukeneyo, kwaye kumgama omkhulu oku kunokukhokelela ekunciphiseni umgangatho wokuhanjiswa kwedatha. Ngexesha elifanayo, ikhebula lemodi enye inexabiso eliphezulu.

Indlela yokukhetha intambo yokukhanya yokudibanisa iTV

Xa ukhetha, kufuneka uzame ukuqinisekisa ukuba ikhebula libonelela ngomgangatho ophezulu wokuhanjiswa kwesandi. Ngokwenza oku, kufuneka unikele ingqalelo koku kulandelayo:

1. Kufuneka uthenge intambo yobude obunjalo ukuba ingasetyenziselwa ngokuthe ngqo ukudibanisa. Akukhuthazwa ukuba ulungise ubude bayo ngokwakho.
2. Kukholelwa ukuba ikhebula akufanele libe lide ngaphezu kwe-10 m , ngaphandle koko umgangatho wesignali edlulisiweyo unokuwohloka. Elona lilolona liphezulu ngamanye amaxesha libizwa ngokuba lelo linobude obuziimitha ezi-5 . Kukho iindidi zentambo ezikumgangatho ophezulu ezibonelela ngokuhanjiswa ngaphaya kwamashumi eemitha ngelixa ugcina iimpawu zesandi.
3. Nangona intambo encinci ilula ukuba iqhube nakwiindawo ezinzima, nangona kunjalo, ngokubanzi , i-thire it is, ngcono isebenza kwaye ihlala ixesha elide .
4. Nayiphi na intambo yokukhanya inemicu, nganye inesingxobo sayo . Kwiintlobo ezibiza kakhulu, ikhebula linokuba nenye eyongezelelweyo, eyenziwe ngeyiloni.
5. Kufanelekile ukunikela ingqalelo kwizinto eziphathekayo ezisetyenziselwa ukudala inxalenye ecacileyo yangaphakathi yeefayili . Eyona nto idumileyo yiglasi okanye i-silica.

Intambo nganye ibonakaliswe ngobuninzi bophawu lwayo lwesandi. Kufuneka ihambelane neempawu zenkqubo yomsindo esetyenziswayo. Ngokuqhelekileyo sithetha ngokuphindaphindiweyo kwe-9-11 MHz.

Indlela yokudibanisa izithethi kunye neenkqubo zomsindo kwi-TV ngokuphuma kwe-optical output

Xa udibanisa, kuyimfuneko ukulungiselela intambo yefiber optic yobude obufunekayo kwangaphambili. Kuthathwa njengokwaneleyo ukuba i-15 cm ephezulu kunomgama phakathi kwe-TV kunye nezithethi.
Xa ubeka, kuyimfuneko ukubeka ngokuchanekileyo ikhebula. Kufuneka kukhunjulwe ukuba akufanele kube nokugoba okubukhali. Kufuneka ufumane izibuko elihambelanayo ngasemva kommkeli weTV. Igama layo elichanekileyo lixhomekeke kwimodeli yeTV oyisebenzisayo. Amagama aqhelekileyo ngala: “Optical Digital Audio Out”, “Optical Audio”, “SPDIF” okanye “Toslink”. Ichweba lingavalwa ngekhava. Ukuyivula, kufuneka ufake ikhebula ngomzamo omncinci. Oku kuya kuvula indawo yokubeka. Emva koko, ikhebula liqhubela phambili kancinci ngakumbi ukuze libe lukhuni.
Okulandelayo, qhagamshela kwisistim yomsindo. Ukwenza oku, esinye isiphelo sekhebula sifakwe kwikhonkco efanelekileyo kuyo. Emva koko, inkqubo yesithethi kunye neTV zivuliwe. Ukuba isandi sidlalwa ngokuqhelekileyo, oko kuthetha ukuba uxhulumaniso luphumelele. Ukuba akukho, kufuneka ukhangele ukuba isandi sesandi kwizithethi sanele kunye neso sikhethwe kwiTV. Intambo kufuneka ingajijwa okanye yolulwe, njengoko oku kuya kunciphisa umgangatho womsebenzi. Xa kukho umonakalo womatshini, awukwazi ukulungiswa – kuya kufuneka utshintshwe.

Kufuneka kukhunjulwe engqondweni ukuba imeko ebalulekileyo yokusebenza ngokufanelekileyo kwentambo kukucoceka kumalungu. Akufunekanga kubekho nothuli apha.

Indlela yokudibanisa intambo yokukhanya yeTV kunye nethiyetha yasekhaya

Ukusebenzisa ithiyetha yasekhaya kukuvumela ukuba ukonwabele umfanekiso okumgangatho ophezulu kunye nesandi. Kuyo, zonke izixhobo eziyimfuneko zixhunyiwe kumamkeli, kwaye yena – kwiTV.
Inkqubo yethiyetha yasekhaya ibandakanya la malungu alandelayo:

1. Umthombo womqondiso. Inokuvela kwi-antenna, kwi-Intanethi, kwi-flash drive enefilimu erekhodiweyo, okanye ngenye indlela.
2. Umamkeli weAV okanye iamplifier.
3. Iintambo zokudibanisa zidibanisa zonke izinto zenkqubo.
4. I-TV isetyenziswa njengesixhobo sokubonisa.
5. Inkqubo yesithethi somgangatho ophezulu , enokuba nesakhiwo esahlukileyo.

Ukudibanisa isandi kwithiyetha yasekhaya, qhagamshela igalelo lokubona lomamkeli kunye nalo mnye umabonakude. Izixhobo ezivakalayo ziqhagamshelwe kumamkeli kusetyenziswa izihlanganisi ezinazo. Le ilandelayo yimizekelo yemizobo yoqhagamshelwano:

1. Kunokwenzeka ukuba ngaxeshanye usebenzise intambo ye-coaxial ukudibanisa kwezi zixhobo kunye nentambo ye-fiber optic ukudibanisa i-set-top box kunye ne-TV.
2. Kukho umguquli osebenzayo oguqula isignali yedijithali ye-5.1 ibe ngumqondiso we-audio ye-5.1. Inamagalelo amabini optical kunye neziphumo ezintathu zomsindo we-cinch.

Ngomgangatho ongcono wesandi, kungcono ukusebenzisa uqhagamshelo lwefiber optic. Ukuba uqhagamshelo lukumgangatho ophantsi, ke oku akuyi kukuvumela ukuba ufumane izibonelelo zethiyetha yasekhaya.

Isisombululo seengxaki

Ukuba umsebenzisi ufuna ukudibanisa inkqubo ye-audio kwi-TV usebenzisa intambo ye-optical, ngoko kufuneka abe nezixhumi ezifanelekileyo kule nto. Abasoloko bekhona. Omnye wemingeni enokubakho sisixhobo sethiyetha sasekhaya esidityaniswe kwiminyaka emininzi. Iindidi ezahlukeneyo zokudibanisa zingasetyenziswa apha, kwaye kungekhona umbane. Kwiimeko ezinjalo, ngamanye amaxesha ungasebenzisa isiguquli. Sisixhobo esinamagalelo kunye neziphumo. Kusenokubakho enye okanye ngaphezulu kuzo. Ukusebenzisa uhlobo olufanelekileyo lwabaguquli kukuvumela ukuba uthathe inzuzo ye-fiber optic cable. Uqhagamshelwa njani izithethi kumabonakude kusetyenziswa i-optical audio output Optical Digital Audio: https://youtu. be/LaBxSLW4efs Ngamanye amaxesha xa uqhagamshela awuziva umgangatho ophezulu wesandi, nangona xa uqala ukujonga yonke into yenziwe kakuhle. Esinye sezizathu ezinokuthi zibe luthuli lungena kwiindawo zokuxhuma. Nokuba intwana yothuli inokunciphisa kakhulu umgangatho wokuhanjiswa kwedatha. Ukuze ulungise imeko, kwanele ukucoca nje isinxibelelanisi, ukuvuthela into ephazamisa ukusebenza kakuhle.