Uburyo bwo Guhindura no Guhindura Uburyo bwa Infrared Remote Igenzura

Mubuzima bwacu bwa none, infragre ya kure igenzura yatubereye igikoresho cyoroshye kuri twe kugenzura ibikoresho byo murugo. Kuva kuri tereviziyo kugeza konderasi, no kubakinnyi ba multimediya, ikoreshwa rya tekinoroji ya infragre irahari hose. Nyamara, ihame ryakazi ryihishe inyuma yimikorere ya infragre, cyane cyane modulation na demodulation, ntabwo bizwi. Iyi ngingo izacengera muburyo bwo gutunganya ibimenyetso bya infragre ya kure, byerekana uburyo bwitumanaho bukora neza kandi bwizewe.

Guhinduranya: Icyiciro cyo Gutegura Ikimenyetso

Guhindura ni intambwe yambere yo kohereza ibimenyetso, bikubiyemo guhindura amakuru yamakuru muburyo bukwiranye no kohereza. Muri infragre ya kure igenzura, ubu buryo bukorwa hakoreshejwe Pulse Position Modulation (PPM).

Amahame yo Guhindura PPM

PPM ni tekinike yoroshye yo guhindura itanga amakuru muguhindura igihe n'umwanya wa pulses. Buri buto kuri kure ya kure ifite code idasanzwe, muri PPM ihindurwamo urukurikirane rwibimenyetso bya pulse. Ubugari n'umwanya wa pulses biratandukanye ukurikije amategeko ya code, byemeza ko ikimenyetso kidasanzwe kandi kimenyekana.

Guhindura abatwara

Hashingiwe kuri PPM, ibimenyetso nabyo bigomba guhindurwa kumurongo wihariye wabatwara. Imiyoboro isanzwe itwara ni 38kHz, ni inshuro ikoreshwa cyane muri infragre ya kure. Uburyo bwo guhindura ibintu burimo guhindura urwego rwo hejuru kandi ruto rwikimenyetso cya kodegisi mu mashanyarazi ya electroniki ya magnetiki yumurongo uhuye, bigatuma ibimenyetso bikwirakwira mu kirere mugihe bigabanya kwivanga.

Kwiyongera kw'ibimenyetso no gusohora

Ikimenyetso cyahinduwe cyongerewe binyuze muri amplifier kugirango urebe ko gifite imbaraga zihagije zo kohereza. Hanyuma, ikimenyetso gisohoka binyuze muri diode ya LED (LED), ikora urumuri rwumucyo rutanga amabwiriza yo kugenzura igikoresho cyagenewe.

Demodulation: Kwakira ibimenyetso no kugarura

Demodulation ninzira ihindagurika yo guhindura, ishinzwe kugarura ibimenyetso byakiriwe mumabwiriza yambere yamakuru.

Kwakira ibimenyetso

Imirasire yakira diode (Photodiode) yakira ibimenyetso bya infragre yasohotse ikabihindura mubimenyetso byamashanyarazi. Iyi ntambwe ni ihuriro ryingenzi muburyo bwo kohereza ibimenyetso kuko bigira ingaruka kuburyo butaziguye ubwiza nukuri.

Gushungura na Demodulation

Ibimenyetso by'amashanyarazi byakiriwe bishobora kuba birimo urusaku kandi bigomba gutunganywa binyuze muyungurura kugirango bikureho urusaku kandi bigumane ibimenyetso hafi yumurongo wabatwara. Ibikurikira, demodulator imenya umwanya wa pulses ukurikije ihame rya PPM, igarura amakuru yumwimerere.

Gutunganya ibimenyetso na decoding

Ikimenyetso cyerekanwe gishobora gusaba ubundi buryo bwo gutunganya ibimenyetso, nko kongera imbaraga no gushiraho, kugirango ibimenyetso byerekana neza kandi neza. Ikimenyetso cyatunganijwe noneho cyoherezwa kuri microcontroller kugirango decode, igaragaze kode iranga igikoresho hamwe na code yimikorere ukurikije amategeko yabigenewe.

Gushyira mu bikorwa amategeko

Iyo decoding imaze gutsinda, microcontroller ikora amabwiriza ajyanye na code yimikorere, nko kugenzura ihinduranya ryibikoresho, guhinduranya amajwi, nibindi.

Umwanzuro

Guhindura no guhindura imikorere ya infragre ya kure ni ishingiro ryuburyo bwitumanaho bwizewe kandi bwizewe. Binyuze muriyi nzira, turashobora kugera kugenzura neza ibikoresho byo murugo. Hamwe nogukomeza gutera imbere kwikoranabuhanga, infragre ya kure igenzura nayo ihora itezimbere kandi ikazamurwa kugirango duhuze ibyo dukeneye kugenzura. Gusobanukirwa iyi nzira ntabwo bidufasha gusa gukoresha infragre ya kure igenzura neza ahubwo binadufasha gusobanukirwa byimbitse muburyo bwikoranabuhanga ryitumanaho.