Inqubo yokushintshashintsha kanye ne-demodulam yesilawuli kude se-infrared Remote

Empilweni yethu yanamuhla, izilawuli ezikude ezingenamkhawulo ziye zaba yithuluzi elifanele kithi ukulawula izinto zasendlini. Kusuka kumathelevishini kuya kuma-air conditioners, kanye nabadlali be-multimedia, ukusetshenziswa kwezobuchwepheshe obungezinhlabezwa Kodwa-ke, umthetho osebenzayo ngemuva kokulawulwa okukude okungenamkhawulo, ikakhulukazi inqubo yokushintshashintsha kanye ne-demomali, uyaziwa kancane. Le ndatshana izolungisa ekusebenzeni kwesiginali ye-infrared Remote control, iveze indlela yayo yokuxhumana esebenzayo nethembekile.

Ukushintshwa kwe-Movie: Isigaba sokulungiselela sesiginali

Ukushintshwa kwesinyathelo sokuqala ekudluliseleni isiginali, okubandakanya ukuguqula imininingwane yemiyalo ibe yifomethi efanelekile yokudluliselwa okungenawaya. Esilawulweni esikude se-infrared, le nqubo ivame ukwenziwa kusetshenziswa i-Pulse Posona Posona Potan (PPM).

Izimiso zokushintshashintsha kwe-PPM

I-PPM iyindlela elula yokushintshanisa edlulisela imininingwane ngokushintsha isikhathi kanye nesikhala se-pulses. Inkinobho ngayinye kwisilawuli kude inekhodi eyingqayizivele, okuyi-PPM eguqulwa yaba uchungechunge lwezimpawu zokushayela. Ububanzi nokuhlukaniswa kwezikhala ze-pulses kuyahlukahluka ngokuya ngemithetho yokufaka amakhodi, kuqinisekisa ukungacabangi nokubonakaliswa kwesiginali.

Ukushintshwa Kwezithwali

Ngokwesisekelo se-PPM, isiginali nayo idinga ukuguqulwa ibe yimvamisa ethile yenethiwekhi. Imvamisa evamile yenkampani yenethiwekhi iyi-38KHZ, okuyimvamisa esetshenziswa kabanzi kwizilawuli ezikude ze-infrared. Inqubo yokushintshashintsha yentukula ibandakanya ukuguqula amazinga aphezulu futhi aphansi wesiginali efakiwe abe ngamagagasi e-electromagnetic wemvamisa ehambisanayo, evumela isiginali ukuthi ikwazi ukusakazeka kakhulu emoyeni ngenkathi inciphisa ukuphazamiseka.

I-Signal Amplification and Emission

Isiginali elungisiwe ikhulisiwe nge-amplifier ukuze iqinisekise ukuthi inamandla anele okudlulisela ngaphandle kwama-wireless. Ekugcineni, isiginali ikhishwe nge-diode yokukhipha infrared (i-LED), yakha igagasi elikhanyayo le-infrared elidlulisela imiyalo yokulawula kudivayisi eqondiwe.

Ukuvuselelwa: Ukwemukelwa kwesiginali nokubuyiselwa

I-Demoration iyinqubo engqubuzanayo yokushintshashintsha, obhekele ukubuyisela isinali etholakele olwazini lwangempela lomyalo.

Impamba yesiginali

I-diode etholwayo etholakele (Photodiode) ithola isinali elikhishwe nge-infrared futhi lisiguqula libe yisiginali kagesi. Lesi sinyathelo siyisixhumanisi esibalulekile enqubweni yokudlulisela isiginali ngoba sithinta ngqo ikhwalithi nokunemba kwesiginali.

Ukuhlunga kanye nokuduma

Isiginali kagesi etholakele ingaqukatha umsindo futhi idinga ukucutshungulwa ngesihlungi ukuze isuse umsindo futhi igcine amasiginali eduze imvamisa yenkampani. Kamuva, iDemomulator ithola isikhundla se-pulses ngokwesimiso se-PPM, ibuyisela imininingwane yangempela efakiwe.

Ukucubungula Kwesiginali Nokuhlobisa

Isiginali edijile ingadinga ukucutshungulwa okwengeziwe kwesiginali, njengokukhuliswa nokubumba, ukuqinisekisa ukuqina nokunemba kwesiginali. Isiginali esetshenzisiwe bese ithunyelwa ku-microcontroller ukuze i-concococtoller yokuhlolisisa, okukhomba ikhodi yokuhlonza ledivayisi kanye nekhodi yokusebenza ngokuya ngemithetho yokufaka amakhodi esethiwe.

Ukubulawa kwemiyalo

Lapho ukudonswa kwempumelelo kuphumelele, i-microcontroller ikhipha imiyalo ehambisanayo ngokususelwa kwikhodi yokusebenza, njengokulawula ukushintshwa kwensiza, ukulungiswa kwevolumu, njll. Le nqubo ibeka ukuqedwa kokugcina kokulawulwa kwesigcawu kwesilawuli kude.

Ukugcina

Inqubo yokushintshashintsha yokushintshana kwesilawuli kude se-infrared isisekelo sendlela yayo yokuxhumana esebenza kahle nethembekile. Ngale nqubo, singathola ukulawula okuqondile kwemishini yasendlini. Ngokuthuthuka okuqhubekayo kobuchwepheshe, izilawuli ezikude ze-infrared zihlala zenziwa kahle futhi zithuthukiswa ukuze zihlangabezane nezidingo zethu zokulawula ezikhulayo. Ukuqonda le nqubo kungasisizi nje kuphela ukusebenzisa izilawuli ezikude ezikude kangcono kodwa futhi kusivumela ukuthi sibe nokuqonda okujulile kobuchwepheshe bokuxhumana okungenantambo.