A rayuwarmu ta zamani, na'urorin sarrafa nesa na infrared sun zama kayan aiki mai sauƙi a gare mu don sarrafa kayan gida. Daga talabijin zuwa na'urorin sanyaya iska, da kuma na'urorin watsa shirye-shirye, amfani da fasahar infrared yana ko'ina. Duk da haka, ƙa'idar aiki da ke bayan na'urar sarrafa nesa ta infrared, musamman tsarin daidaitawa da rage gudu, ba a san ta sosai ba. Wannan labarin zai zurfafa cikin sarrafa sigina na na'urar sarrafa nesa ta infrared, yana bayyana ingantaccen tsarin sadarwa mai inganci.
Daidaitawa: Matakin Shiri na Siginar
Sauya yanayi shine mataki na farko a watsa sigina, wanda ya ƙunshi canza bayanan umarni zuwa tsarin da ya dace da watsawa mara waya. A cikin na'urar sarrafa nesa ta infrared, yawanci ana gudanar da wannan tsari ta amfani da Pulse Position Modulation (PPM).
Ka'idojin Daidaita PPM
PPM wata dabara ce mai sauƙi ta daidaita bayanai wadda ke isar da bayanai ta hanyar canza tsawon lokaci da tazara tsakanin bugun jini. Kowace maɓalli a kan na'urar sarrafawa ta nesa tana da lambar musamman, wadda a cikin PPM ake canza ta zuwa jerin siginar bugun jini. Faɗi da tazara tsakanin bugun jini sun bambanta bisa ga ƙa'idodin lambar, wanda ke tabbatar da keɓancewa da kuma gane siginar.
Daidaita Modulation na Mai Jigilar Kaya
Dangane da PPM, siginar kuma tana buƙatar a daidaita ta zuwa takamaiman mitar mai ɗaukar kaya. Mitar mai ɗaukar kaya ta gama gari ita ce 38kHz, wanda mita ce da ake amfani da ita sosai a cikin na'urorin sarrafa nesa na infrared. Tsarin daidaitawa ya ƙunshi canza matakan siginar da aka sanya a cikin babban da ƙasa zuwa raƙuman lantarki na mitar da ta dace, wanda ke ba da damar siginar ta ƙara yaɗuwa a cikin iska yayin da take rage tsangwama.
Ƙara Sigina da Fitar da Iska
Ana ƙara girman siginar da aka daidaita ta hanyar amplifier don tabbatar da cewa tana da isasshen ƙarfi don watsawa mara waya. A ƙarshe, ana fitar da siginar ta hanyar diode mai fitar da infrared (LED), wanda ke samar da hasken infrared wanda ke isar da umarnin sarrafawa zuwa na'urar da aka nufa.
Gyaran Sigina: Karɓar Sigina da Maidowa
Demodulation shine tsarin juyi na daidaitawa, wanda ke da alhakin dawo da siginar da aka karɓa cikin bayanin umarni na asali.
Ɗaukar Sigina
Diode mai karɓar infrared (Photodiode) yana karɓar siginar infrared da aka fitar kuma yana mayar da ita zuwa siginar lantarki. Wannan matakin babban haɗi ne a cikin tsarin watsa siginar saboda yana shafar inganci da daidaiton siginar kai tsaye.
Tacewa da Gyaran Hannu
Siginar lantarki da aka karɓa na iya ƙunsar hayaniya kuma yana buƙatar a sarrafa ta ta hanyar matattara don cire hayaniya da riƙe sigina kusa da mitar mai ɗaukar kaya. Daga baya, mai canza wutar lantarki yana gano matsayin bugun jini bisa ga ƙa'idar PPM, yana dawo da bayanan asali da aka ɓoye.
Sarrafa Sigina da Fahimtar Bayanai
Siginar da aka rage girmanta na iya buƙatar ƙarin sarrafa sigina, kamar faɗaɗawa da siffantawa, don tabbatar da daidaito da daidaiton siginar. Sannan ana aika siginar da aka sarrafa zuwa ga microcontroller don ƙirƙirar faifan bayanai, wanda ke gano lambar tantance na'urar da lambar aiki bisa ga ƙa'idodin lambar da aka saita.
Aiwatar da Umarni
Da zarar an yi nasarar ƙirƙirar na'urar, na'urar sarrafa microcontroller za ta aiwatar da umarnin da suka dace bisa ga lambar aiki, kamar sarrafa canjin na'urar, daidaita ƙara, da sauransu. Wannan tsari yana nuna kammala watsa siginar na'urar sarrafa nesa ta infrared.
Kammalawa
Tsarin daidaitawa da rage girman na'urar sarrafa nesa ta infrared shine ginshiƙin tsarin sadarwa mai inganci da inganci. Ta hanyar wannan tsari, za mu iya cimma daidaiton sarrafa kayan aikin gida. Tare da ci gaba da ci gaban fasaha, ana kuma inganta na'urorin sarrafa nesa na infrared akai-akai don biyan buƙatun sarrafawa masu tasowa. Fahimtar wannan tsari ba wai kawai yana taimaka mana mu yi amfani da na'urorin sarrafa nesa na infrared mafi kyau ba, har ma yana ba mu damar fahimtar fasahar sadarwa mara waya.
Lokacin Saƙo: Agusta-16-2024
