Yini i-automotive microwave radar
I-automotive microwave radar iwuhlelo lwe-radar olusebenzisa ama-microwave ukuze abonwe, ikakhulukazi asetshenziswa ezimotweni nakwezinye izimoto eziphansi. Irada ye-Microwave ithola izinto ezisendaweni ezungezile ngokuthumela nokwamukela amasiginali we-microwave, ukuze kuzuzwe imisebenzi ehlukahlukene, njengokutholwa kwezithiyo, isixwayiso sokungqubuzana, isilawuli se-adaptive cruise, njll.
Isimiso sokusebenza
Irada ye-microwave yezimoto isebenza ngokufana ne-radar evamile, okungukuthi, ithumela igagasi elingenantambo (i-microwave) bese ithola i-echo ngokomehluko wesikhathi phakathi kokwamukela nokwamukela, ukuze kukalwe idatha yendawo okuhlosiwe. Ngokukhethekile, ama-radar e-microwave akhipha amasiginali we-microwave ahlehlayo lapho ehlangabezana nezithiyo, futhi irada ibala ibanga ngokulinganisa isikhathi sokuya nokubuya samasignali. Ngaphezu kwalokho, i-radar ye-microwave ingakwazi futhi ukubona isivinini nesiqondiso sento ngokuhlaziya izici zesignali ebonisiwe, njengomphumela we-Doppler .
Isimo sohlelo lokusebenza
I-radar ye-microwave yezimoto inezimo ezihlukahlukene zohlelo lokusebenza ezimotweni:
isexwayiso sokushayisana : ngokuthola izithiyo ezizayo, isixwayiso kusenesikhathi, siza umshayeli ukuthi athathe izinyathelo zokugwema ukushayisana.
i-adaptive cruise control : Ilungisa ngokuzenzakalela isivinini se-cruise control ngokwendawo ezungezile yemoto, igcina ibanga eliphephile ukusuka emotweni engaphambili.
ukutholwa kwabahamba ngezinyawo : Ohlelweni lokushayela oluzenzakalelayo, i-microwave radar ikwazi ukubona abahamba ngezinyawo nezinye izithiyo ukuze kuqinisekiswe ukuphepha kokushayela.
ukupaka okuzenzakalelayo : Siza imoto ukuthi ithole ngokuzenzakalelayo indawo yokupaka efanele endaweni yokupaka futhi uqedele umsebenzi wokupaka.
Imingcele yezobuchwepheshe nezici zokusebenza
Amarada e-microwave ezimoto ngokuvamile asebenza ngamabhendi amagagasi angamamilimitha, afana no-24GHz, anamaza aphezulu kanye namaza amaza amafushane. Lokhu kwenza irada ye-microwave ibe nokuqondisa okuphezulu nokulungiswa, futhi ikwazi ukubona ngokunembile okuhlosiwe kwebanga eliseduze. Ngaphezu kwalokho, i-radar ye-microwave ayithinteki ngokubonakala futhi ingasebenza ngokujwayelekile ezimweni ezimbi zesimo sezulu. Kodwa-ke, izindleko ze-microwave radar ziphakeme kakhulu, futhi ikhono lokubona izinto ezincane alilihle njenge-lidar.
Imisebenzi esemqoka ye-automotive microwave radar ihlanganisa lezi zici ezilandelayo:
Isexwayiso Sokushayisana kanye ne-Automatic Emergency Braking (AEB) : Amarada ama-microwave athola izithiyo ezingaphambili futhi uma kunesidingo aqalise isistimu yokubhuleka eziphuthumayo ukuze kuvinjelwe ukushayisana.
ukutholwa kwabahamba ngezinyawo : Nge-microwave radar, izimoto zingakwazi ukubona futhi zithole abahamba ngezinyawo, ngaleyo ndlela zithuthukise ukuphepha kokushayela.
Ukuqapha indawo eyimpumputhe kanye nomzila Isexwayiso sokusuka : Irada ye-microwave ingakwazi ukuqapha indawo eyimpumputhe yemoto ukuze igweme ukushayisana nezinye izimoto lapho ishintsha imizila, futhi ingaqapha ukusuka komzila futhi ixwayise abashayeli ukuba .
I-Adaptive cruise control (ACC) : Irada ye-Microwave ingasiza izimoto zigcine ibanga eliphephile ukusuka emotweni ephambi kwe-adaptive cruise control.
Isexwayiso Se-Rear Traffic (RCTA) : I-radar ye-microwave ingakwazi ukuqapha ukuhamba kwemoto, ikhumbuze umshayeli ukuthi anake imoto ezayo, ukuze agweme ukuhlehla ukushayisana.
Umgomo wokusebenza we-microwave radar uwukukala indawo yethagethi ngokuthumela amaza angenawaya (amaza erada) nokuthola i-echo ngokomehluko wesikhathi phakathi kokuthumela nokwamukela. Imvamisa ye-radar yamagagasi eyimilimitha iku-millimeter wave band, ngakho ibizwa nge-millimeter wave radar .
Ukusetshenziswa kwamabhendi amafrikhwensi ahlukene we-microwave radar ezimotweni kuhlanganisa amabhendi amabili we-24GHz no-77GHz. Ama-radar angu-24GHz asetshenziselwa ikakhulukazi ukutholwa kwebanga elifushane, kuyilapho ama-radar angu-77GHz anokulungiswa okuphezulu nosayizi omncane, afanele ukutholwa kwebanga elide.
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