Ụkpụrụ ọrụ na isi ihe nrụnye nke radar ntụgharị
Aha zuru oke nke radar na-agbanwe agbanwe bụ "reversing reversing anti-collision radar", nke a na-akpọkwa "parking auxiliary device", ma ọ bụ "reversing computer warning system". Ngwaọrụ a nwere ike ikpebi anya ihe mgbochi dị na ya ma nye ndụmọdụ gbasara ọnọdụ ihe mgbochi dị gburugburu ụgbọala ahụ iji melite nchekwa nke reversing.
Nke mbụ, ụkpụrụ ọrụ
Rada na-agbanwe agbanwe bụ ngwaọrụ nchekwa ebe a na-adọba ụgbọala, nke mejupụtara ihe mmetụta ultrasonic (nke a na-akpọkarị nyocha), ihe njikwa na ihe ngosi, mkpu (opi ma ọ bụ buzzer) na akụkụ ndị ọzọ, dịka egosiri na Foto 1. Ihe mmetụta Ultrasonic bụ isi ihe dị na sistemụ ntụgharị dum. Ọrụ ya bụ izipu ma nata ebili mmiri ultrasonic. E gosiri nhazi ya na Foto 2. Ugbu a, ugboro ọrụ nyocha a na-ejikarị eme ihe nke 40kHz, 48kHz na 58kHz ụdị atọ. N'ozuzu, ka ugboro ole na ole dị elu, ka mmetụta ahụ dị elu, mana ntụziaka kwụ ọtọ na kwụ ọtọ nke Angle nchọpụta pere mpe, yabụ jiri nyocha 40kHz n'ozuzu ya.
Rada Astern na-eji usoro nhazi ultrasonic eme ihe. Mgbe etinyere ụgbọala ahụ n'ime gia azụ, radar na-agbanwe agbanwe na-abanye n'ọnọdụ ọrụ na akpaghị aka. N'okpuru njikwa nke onye njikwa, nyocha arụnyere na bamper azụ na-eziga ebili mmiri ultrasonic ma na-emepụta akara ngosi mgbe ọ na-ezute ihe mgbochi. Mgbe ọ natara akara ngosi ụda olu site na ihe mmetụta ahụ, onye njikwa ahụ na-eme nhazi data, si otú a na-agbakọ anya dị n'etiti ahụ ụgbọala na ihe mgbochi ma na-ekpebi ọnọdụ ihe mgbochi.
Nhazi blọk nhazi radar dịka egosiri na eserese nke 3, MCU (MicroprocessorControlUint) site na nhazi mmemme akwadoro, na-achịkwa sekit nnyefe draịva analog eletrọniki kwekọrọ, sensọ ultrasonic na-arụ ọrụ. A na-ahazi akara ngosi ultrasonic site na sekit nnata pụrụ iche, nzacha na ime ka ihe dịkwuo elu, wee chọpụta ya site na ọdụ ụgbọ mmiri iri nke MCU. Mgbe ị na-enweta akara nke akụkụ zuru oke nke sensọ ahụ, sistemụ ahụ na-enweta anya kacha nso site na algọridim a kapịrị ọnụ, ma na-akwali buzzer ma ọ bụ sekit ngosi iji chetara onye ọkwọ ụgbọala anya na azimuth ihe mgbochi kacha nso.
Isi ọrụ nke sistemụ radar na-agbanwe agbanwe bụ inyere aka ịdọba ụgbọala, ịpụ na gia azụ ma ọ bụ kwụsị ịrụ ọrụ mgbe ọsọ mmegharị gafere otu ọsọ (na-abụkarị 5km/h).
[Ndụmọdụ] Ultrasonic ebili mmiri na-ezo aka na ụda ebili mmiri nke gafere oke ntị mmadụ (karịa 20kHz). O nwere njirimara nke ugboro ole dị elu, mgbasa ahịrị kwụ ọtọ, ezigbo nduzi, obere diffraction, ntinye siri ike, ọsọ mgbasa nwayọ (ihe dị ka 340m/s) na ihe ndị ọzọ. Ultrasonic ebili mmiri na-agafe site na ihe siri ike na-adịghị ahụkebe ma nwee ike ịbanye ruo omimi nke ọtụtụ iri mita. Mgbe ultrasonic zutere ihe na-adịghị ọcha ma ọ bụ njikọ, ọ ga-emepụta ebili mmiri na-egosipụta, nke enwere ike iji mepụta nchọpụta omimi ma ọ bụ oke, nke a pụkwara ime ka ọ bụrụ sistemụ na-agafe agafe.
