Yintoni i-automotive microwave radar
I-automotive microwave radar yinkqubo yeradar esebenzisa ii-microwaves ukubonwa, ikakhulu ezisetyenziswa kwiimoto nakwezinye iimoto eziphantsi komhlaba. I-radar ye-Microwave ibona izinto kwindawo engqongileyo ngokuthumela kunye nokufumana imiqondiso ye-microwave, ukuze kuphunyezwe imisebenzi eyahlukeneyo, njengokubhaqa imiqobo, isilumkiso sokungqubana, ulawulo lokuhamba ngenqanawa, njl.
Umgaqo wokusebenza
Irada ye-microwave yemoto isebenza ngokufana nerada eqhelekileyo, oko kukuthi, ithumela i-wireless wave (i-microwave) ize ifumane i-echo ngokomahluko wexesha phakathi kokufumana nokwamkela, ukuze kulinganiswe idatha yendawo ekujoliswe kuyo. Ngokukodwa, iirada ze-microwave zikhupha imiqondiso ye-microwave ebuyela umva xa idibana nemiqobo, kwaye iradar ibala umgama ngokulinganisa ixesha lokuya nokubuya leempawu. Ukongeza, i-microwave radar inokubona isantya kunye nesalathiso sento ngokuhlalutya iimpawu zomqondiso obonakalisiweyo, njenge-Doppler effect.
Imeko yesicelo
Irada ye-microwave yeemoto ineendlela ezahlukeneyo zokusebenzisa kwiimoto:
Isilumkiso sontlitheko : ngokuqaphela imiqobo engaphambili, isilumkiso kwangethuba, nceda umqhubi athathe amanyathelo okuthintela ukungqubana.
i-adaptive cruise control : Luhlengahlengisa ngokuzenzekelayo isantya solawulo lokukhenketha ngokwemeko engqonge isithuthi, ukugcina umgama okhuselekileyo ukusuka kwisithuthi esingaphambili.
ukubonwa kwabahambi ngeenyawo : Kwinkqubo yokuqhuba ngokuzenzekelayo, iradar yemicrowave inokubona abahambi ngeenyawo kunye neminye imiqobo yokuqinisekisa ukhuseleko lokuqhuba.
indawo yokupaka ngokuzenzekelayo : Nceda isithuthi sifumane ngokuzenzekelayo indawo yokupaka efanelekileyo kwindawo yokupaka kwaye ugqibezele umsebenzi wokupaka.
Iiparamitha zobugcisa kunye neempawu zokusebenza
Iirada zeMicrowave yeemoto zisebenza ngokwemillimeter iibhendi zamaza, ezinje nge-24GHz, ezinezandi ezisuka phezulu kunye nobude obufutshane bamaza. Oku kwenza i-microwave radar ibe ne-directivity ephezulu kunye nesisombululo, kwaye inokubona ngokuchanekileyo iithagethi zoluhlu olusondeleyo. Ukongezelela, i-radar ye-microwave ayichaphazeli ukubonakala kwaye inokusebenza ngokuqhelekileyo kwiimeko ezimbi zemozulu. Nangona kunjalo, ixabiso le-radar ye-microwave liphezulu, kwaye ukukwazi ukubona izinto ezincinci akulunganga njenge-lidar.
Imisebenzi ephambili ye-automotive microwave radar ibandakanya le miba ilandelayo:
Isilumkiso sokungqubana kunye ne-Automatic Emergency Braking (AEB) : Iirada zeMicrowave zifumanisa imiqobo engaphambili kwaye ukuba kuyimfuneko ziqalise isixokelelwano esizenzekelayo sokuqhawuka sikaxakeka ukunqanda ukungqubana.
ukubonwa kwabahambi ngeenyawo : Nge-microwave radar, iimoto zinokubona kwaye zibone abahambi ngeenyawo, ngaloo ndlela ziphucula ukhuseleko lokuqhuba.
Ukujongwa kwendawo engaboniyo kunye nomzila Isilumkiso sokuhamba : iradar ye-microwave inokubeka iliso kwindawo engaboniyo yesithuthi ukunqanda ukungqubana nezinye iimoto xa utshintsha iindledlana, kwaye inokubeka iliso kwindlela yokuhamba kunye nokulumkisa abaqhubi ukuba bahambe.
I-Adaptive cruise control (ACC) : I-radar ye-Microwave inokunceda izithuthi zigcine umgama okhuselekileyo ukusuka kwisithuthi esiphambi kwe-adaptive cruise control.
Isilumkiso seTrafikhi yangasemva (RCTA) : Iradar yemicrowave inokubeka iliso kwitrafikhi ngasemva kwesithuthi, ikhumbuze umqhubi ukuba athathele ingqalelo imoto ezayo, ukunqanda ukungqubana umva.
Umgaqo-nkqubo we-microwave radar kukulinganisa indawo ekujoliswe kuyo ngokuthumela amaza angenacingo (amaza e-radar) kunye nokufumana i-echo ngokomahluko wexesha phakathi kokuthumela nokufumana. Ubuninzi be-millimeter wave radar kwi-millimeter wave band, ngoko ke ibizwa ngokuba yi-millimeter wave radar.
Ukusetyenziswa kweebhendi zamaza ohlukeneyo eradar yemicrowave ezimotweni kuquka iibhendi ezimbini ze24GHz kunye ne77GHz. I-radars ye-24GHz isetyenziselwa ubukhulu becala ukubonwa kuluhlu olufutshane, ngelixa iirada ze-77GHz zinesisombululo esiphezulu kunye nobukhulu obuncinci, obulungele ukubonwa koluhlu olude.
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