Duk da saurin haɓakar na'urori masu wayo kamar wayoyin hannu, TV har yanzu shine kayan aikin lantarki da ake buƙata don iyalai, kuma na'ura mai nisa, azaman kayan sarrafawa na TV, yana ba mutane damar canza tashoshin TV ba tare da wahala ba.
Duk da saurin haɓaka na'urori masu wayo kamar wayoyin hannu, TV har yanzu kayan aikin lantarki ne da ake buƙata don iyalai.A matsayin kayan sarrafawa na TV, mutane na iya canza tashoshin TV cikin sauƙi.To ta yaya ne remote control ya gane da remote na TV?
Tare da ci gaban fasaha, nau'ikan na'urori masu nisa na mara waya suma suna karuwa.Yawancin lokaci akwai nau'ikan biyu, ɗaya yana haifar da ikon sarrafawa, ɗayan shine yanayin sarrafa rediyo.A cikin rayuwarmu ta yau da kullun, mafi yawan amfani da ita shine yanayin sarrafa nesa na infrared.Ɗaukar ikon nesa na TV a matsayin misali, bari mu yi magana game da ƙa'idar aikinsa.
Tsarin sarrafa nesa gabaɗaya ya ƙunshi na'urar watsawa (remote controller), mai karɓa da naúrar sarrafawa ta tsakiya (CPU), wanda mai karɓa da CPU ke kan TV.Babban mai kula da nesa na TV yana amfani da infrared ray tare da tsawon 0.76 ~ 1.5 microns don fitar da bayanin sarrafawa.Nisan aikinsa shine mita 0 ~ 6 kawai kuma yana yaduwa tare da madaidaiciyar layi.A cikin da'irar ciki na mai sarrafa ramut, daidai da kowane maɓalli akan mai sarrafa ramut, da'irar ta ciki tana ɗaukar takamaiman hanyar coding don dacewa da ita.Lokacin da aka danna takamaiman maɓalli, ana haɗa wani da'irar a cikin da'irar, kuma guntu zai iya gano wace da'ira ta haɗa kuma yayi hukunci da wane maɓalli ne aka danna.Sa'an nan, guntu zai aika da siginar jerin coding daidai da maɓalli.Bayan haɓakawa da daidaitawa, za a aika siginar zuwa diode mai fitar da haske kuma a canza shi zuwa siginar infrared don haskaka waje.Bayan karɓar siginar infrared, mai karɓar TV yana lalatawa da sarrafa shi don dawo da siginar sarrafawa, kuma ya aika siginar zuwa sashin sarrafawa na tsakiya, wanda ke aiwatar da ayyuka masu dacewa kamar canza tashoshi.Don haka, mun gane aikin ramut na TV.
Ikon nesa na Infrared yana da fa'idodi da yawa.Da farko, farashin infrared ramut yana da ƙasa kuma yana da sauƙin karɓar jama'a.Abu na biyu, na'urar nesa ta infrared ba zai shafi yanayin da ke kewaye ba kuma ba zai tsoma baki tare da sauran kayan lantarki ba.Ko da na kayan aiki na gida a cikin gidaje daban-daban, za mu iya amfani da nau'in nau'i na nesa, saboda infrared ramut ba zai iya shiga bango ba, don haka ba za a sami tsangwama ba.A ƙarshe, ƙaddamar da tsarin kula da nesa yana da sauƙi, yawanci za mu iya amfani da shi ba tare da wani gyara ba, idan dai mun haɗa daidai daidai da ƙayyadaddun da'irar.Don haka, an yi amfani da ramut na infrared sosai a cikin kayan aikin gidanmu.
Tare da zuwan zamani mai hankali, ayyukan TV suna karuwa da yawa, amma kulawar nesa yana ƙara zama mai sauƙi.Babu maɓalli da yawa a da, kuma bayyanar ta fi ɗan adam.Duk da haka, ko ta yaya yake tasowa, na'ura mai nisa, a matsayin muhimmin kayan lantarki don hulɗar mutum-kwamfuta, dole ne ya zama wanda ba zai iya maye gurbinsa ba.