Kunyangwe kukurumidza kuvandudzwa kwemidziyo yakangwara senge nharembozha, TV ichiri chinhu chinodiwa chemagetsi kumhuri, uye chidzoreso chiri kure, semidziyo yekudzora yeTV, inobvumira vanhu kuchinja chiteshi cheTV pasina dambudziko.
Kunyangwe nekukasira kuvandudzwa kwemidziyo yakangwara senge nharembozha, TV ichiri chinhu chinodiwa chemagetsi kumhuri.Semidziyo yekudzora yeTV, vanhu vanogona kushandura chiteshi cheTV zviri nyore.Saka remote control inoziva sei remote control yeTV?
Nekufambira mberi kwe tekinoroji, mhando dzeasina waya dzekudzora kure dziri kuwedzera zvakare.Panowanzove nemhando mbiri, imwe infrared remote control, imwe yacho radio shake control mode.Muhupenyu hwedu hwezuva nezuva, inonyanya kushandiswa infrared remote control mode.Tichitora remote control yeTV semuenzaniso, ngatitaure nezve iyo inoshanda musimboti.
Iyo remote control system inowanzo umbwa neye transmitter (remote controller), inogamuchira uye yepakati yekugadzirisa unit (CPU), umo inogamuchira uye CPU iri paTV.Iyo general TV remote controller inoshandisa infrared ray ine wavelength ye0.76 ~ 1.5 microns kuburitsa ruzivo rwekutonga.Chinhambwe chayo chekushanda chingori 0 ~ 6 metres uye inoparadzira nemutsara wakatwasuka.Muchikamu chemukati chemutongi ari kure, anoenderana nekiyi imwe neimwe pane remote controller, dunhu remukati rinotora imwe nzira yekukodha kuti ienderane nayo.Kana kiyi chaiyo ichidzvanywa, imwe dunhu mudunhu rakabatana, uye chip inogona kuona kuti ndeipi dunhu rakabatana uye kutonga kuti ndeipi kiyi inodzvanywa.Zvadaro, chip inotumira iyo coding sequence siginecha inoenderana nekiyi.Mushure mekukwidziridzwa uye modulation, chiratidzo chinotumirwa kune mwenje-emitting diode uye ichishandurwa kuita infrared chiratidzo kuti ivheneke kunze.Mushure mekugamuchira iyo infrared siginecha, iyo TV inogamuchira inoderedza uye inoigadzirisa kuti idzore chiratidzo chekutonga, uye inotumira chiratidzo kune yepakati yekugadzirisa unit, iyo inoita mashandiro anoenderana sekuchinja chiteshi.Nekudaro, isu tinoona iyo remote control basa reTV.
Infrared remote control ine zvakawanda zvakanaka.Chekutanga, mutengo we infrared remote control wakaderera uye zviri nyore kugamuchirwa neveruzhinji.Chechipiri, iyo infrared remote control haizokanganisa nharaunda yakatenderedza uye haizokanganise zvimwe midziyo yemagetsi.Kunyangwe midziyo yemumba mudzimba dzakasiyana, tinogona kushandisa mhando imwechete yekudzora kure, nekuti infrared remote control haigone kupinda mumadziro, saka hapazovi nekukanganisa.Chekupedzisira, iyo remote control system yedunhu debugging iri nyore, kazhinji isu tinogona kuishandisa pasina chero debugging, chero isu tichibatanidza nemazvo zvinoenderana nedunhu rakatarwa.Naizvozvo, infrared remote control yakashandiswa zvakanyanya mumidziyo yedu yemumba.
Nekuuya kwenguva yehungwaru, mabasa eTV ari kuramba achisiyana, asi kure kure kuri kuwedzera uye nyore.Iko hakuna mabhatani akawandisa zvisati zvaitika, uye chitarisiko chakanyanya hunhu.Nekudaro, zvisinei kuti inokura sei, iyo remote control, sechinhu chakakosha chemagetsi chekudyidzana kwevanhu-kombuta, inofanira kunge isingadzokerike.