Isebenza njani iNkqubo yokuModyuli kunye noKuthotywa kwe-Infrared Remote Control

Kubomi bethu banamhlanje, ulawulo olukude lwe-infrared lube sisixhobo esiluncedo kuthi sokulawula izixhobo zasekhaya. Ukusuka koomabonwakude ukuya kwii-air conditioners, kunye nabadlali bemultimedia, ukusetyenziswa kwetekhnoloji ye-infrared kuyo yonke indawo. Nangona kunjalo, umgaqo osebenzayo osemva kolawulo olukude lwe-infrared, ngakumbi inkqubo yokumodareyitha kunye nenkqubo yokwehlisa, awaziwa kancinci. Eli nqaku liza kuphonononga kwi-signal process ye-remote ye-infrared, ityhila indlela yayo yonxibelelwano esebenzayo nethembekileyo.

Ukumodareyitha: Inqanaba loLungiselelo loMqondiso

Ukumodareyitha linyathelo lokuqala ekuhanjisweni komqondiso, okubandakanya ukuguqula ulwazi lomyalelo kwifomathi efanelekileyo yokuhanjiswa kwamacingo. Kulawulo olukude lwe-infrared, le nkqubo idla ngokuqhutywa kusetyenziswa i-Pulse Position Modulation (PPM).

Imigaqo yoModulation yePPM

I-PPM yindlela elula yokumodareyitha ehambisa ulwazi ngokutshintsha ubude bexesha kunye nesithuba semibhobho. Iqhosha ngalinye kwi-remote control linekhowudi ekhethekileyo, ethi kwiPPM iguqulelwe kwichungechunge lweempawu ze-pulse. Ububanzi kunye nezithuba zee-pulses ziyahlukahluka ngokwemigaqo yekhowudi, ukuqinisekisa ukungafani kunye nokuqaphela umqondiso.

UkuModareyitha komthwali

Kwisiseko sePPM, isignali nayo kufuneka iguqulwe ibe yi-frequency carrier carrier. I-frequency carrier carrier yi-38kHz, esetyenziswa rhoqo kulawulo olukude lwe-infrared. Inkqubo yokumodareyitha ibandakanya ukuguqula amanqanaba aphezulu naphantsi ophawu olufakwe kwikhowudi ibe ngamaza e-electromagnetic frequency ehambelanayo, evumela umqondiso ukuba usasazeke ngakumbi emoyeni ngelixa unciphisa ukuphazamiseka.

Ukwandiswa koMqondiso kunye nokuPhuma

Isignali emodareyithiweyo yandiswa nge-amplifier ukuqinisekisa ukuba inamandla aneleyo okuhanjiswa kwamacingo. Ekugqibeleni, umqondiso ukhutshwa nge-infrared emitting diode (LED), yenze iliza lokukhanya le-infrared elidlulisela imiyalelo yolawulo kwisixhobo ekujoliswe kuso.

Ukunciphisa: Ukwamkelwa koMqondiso kunye noBuyiselo

I-Demodulation yinkqubo eguqukileyo yokumodareyitha, enoxanduva lokubuyisela isignali efunyenweyo kulwazi lomyalelo wokuqala.

Ulwamkelo loMqondiso

I-infrared receiver diode (Photodiode) ifumana isignali ye-infrared ekhutshwayo kwaye iyiguqule ibe ngumqondiso wombane. Eli nyathelo likhonkco eliphambili kwinkqubo yokudluliselwa kwesignali kuba ichaphazela ngokuthe ngqo umgangatho kunye nokuchaneka kwesignali.

Ukuhluzwa kunye noKuhlengahlengiswa

Isignali yombane efunyenweyo inokuqulatha ingxolo kwaye kufuneka iqhutywe ngesihluzo ukususa ingxolo kunye nokugcina iimpawu kufuphi ne-frequency carrier. Emva koko, i-demodulator ibona indawo yee-pulses ngokomgaqo wePPM, ukubuyisela ulwazi lwe-encoded yasekuqaleni.

Ukwenziwa kweMiqondiso kunye noKuguqulelwa kwekhowudi

Isignali ethotyiweyo inokufuna ukuqhutyelwa phambili kwesignali, njengokukhulisa kunye nokubunjwa, ukuqinisekisa ukuzinza kunye nokuchaneka komqondiso. Isignali esetyenzisiweyo ithunyelwa kwi-microcontroller ukuze i-decoding, echonga ikhowudi yokuchongwa kwesixhobo kunye nekhowudi yokusebenza ngokwemigaqo yekhowudi yokusetwa kwangaphambili.

Ukuphunyezwa kweMiyalelo

Emva kokuba i-decoding iphumelele, i-microcontroller yenza imiyalelo ehambelanayo esekelwe kwikhowudi yokusebenza, njengokulawula ukutshintsha kwesixhobo, ukulungiswa kwevolumu, njl.

Ukuqukumbela

Ukumodareyithwa kunye nenkqubo yokunciphisa i-infrared remote control ngundoqo wonxibelelwano olusebenzayo noluthembekileyo. Ngale nkqubo, sinokufikelela kulawulo oluchanekileyo lwezixhobo zekhaya. Ngokuqhubela phambili okuqhubekayo kwetekhnoloji, izilawuli ezikude ze-infrared nazo zihlala ziphuculwa kwaye ziphuculwa ukuhlangabezana neemfuno zethu ezikhulayo zolawulo. Ukuqonda le nkqubo akusincedi kuphela ukuba sisebenzise ulawulo olukude lwe-infrared ngcono kodwa kukwasivumela ukuba sibe nokuqonda okunzulu kobuchwepheshe bonxibelelwano olungenazingcingo.