Kushanda musimboti uye yekuisa mapoinzi ekudzoreredza radar
Zita rakazara rereversing radar i "reversing anti-collision radar", inonziwo "parking axiliary device", kana "kudzosera yambiro yekombuta". Chigadzirwa chacho chinogona kutonga kureba kwezvipingamupinyi uye kuraira mamiriro ezvipingamupinyi zvakapoteredza motokari kuvandudza kuchengeteka kwekudzokera shure.
Chokutanga, kushanda musimboti
Reversing radar is parking security axiliary device, iyo inoumbwa ne ultrasonic sensor (inowanzozivikanwa se probe), controller uye kuratidza, alarm (nyanga kana buzzer) nezvimwe zvikamu, sezvinoratidzwa mumufananidzo 1. Ultrasonic sensor ndiyo inonyanya kukosha ye yose reversing system. Basa rayo nderekutumira uye kugashira mafungu e ultrasonic. Chimiro chayo chinoratidzwa mumufananidzo 2. Parizvino, iyo inowanzoshandiswa probe inoshanda frequency ye40kHz, 48kHz uye 58kHz matatu marudzi. Kazhinji kutaura, kukwirisa frequency, kunowedzera kunzwisiswa, asi kwakachinjika uye kwakatwasuka gwara rekuonekwa kweAngle idiki, saka kazhinji shandisa 40kHz probe.
Astern radar inotora ultrasonic kubva musimboti. Kana mota yaiswa mune reverse giya, reversing radar inopinda otomatiki munzvimbo yekushanda. Pasi pekutonga kwemutongi, probe yakaiswa pane yekumashure bumper inotumira mafungu e ultrasonic uye inogadzira masaini echo paunosangana nezvipingamupinyi. Mushure mekugamuchira masaini echo kubva kune sensor, mutongi anotakura data data, nokudaro achiverenga chinhambwe pakati pemuviri wemotokari uye zvipingamupinyi uye kutonga chinzvimbo chezvipingamupinyi.
Reversing radar circuit composition block diagram sezvakaratidzwa mumufananidzo 3, MCU (MicroprocessorControlUint) kuburikidza neyakarongwa chirongwa dhizaini, kudzora inoenderana yemagetsi analog switch drive transmission circuit, ultrasonic sensors inoshanda. Ultrasonic echo masiginecha anogadziriswa nekugashira kwakakosha, kusefa uye kukwirisa maseketi, uye obva aonekwa negumi zviteshi zveMCU. Paunenge uchigamuchira chiratidzo chechikamu chizere che sensor, sisitimu inowana chinhambwe chiri padyo kuburikidza nealgorithm chaiyo, uye inotyaira buzzer kana kuratidza reketi kuyeuchidza mutyairi yepedyo chipingamupinyi chinhambwe uye azimuth.
Basa guru rekudzoreredza radar system nderekubatsira kupaka, kubuda reverse giya kana kumira kushanda kana hama inofamba ichipfuura imwe kumhanya (kazhinji 5km/h).
[Zano] Ultrasonic wave inoreva ruzha runodarika huwandu hwekunzwa kwevanhu (pamusoro pe20kHz). Iine maitiro ehupamhi hwepamusoro, kupararira kwemutsara wakatwasuka, kutungamira kwakanaka, kuparadzanisa kuduku, kupinda kwakasimba, kunonoka kupararira kwekukurumidza (anenge 340m / s) nezvimwe zvakadaro. Ultrasonic masaisai anofamba kuburikidza neopaque solids uye anogona kupinda pakadzika makumi emamita. Kana iyo ultrasonic inosangana nekusachena kana kupindirana, inoburitsa mafungu anotaridza, ayo anogona kushandiswa kugadzira kudzika kwekuona kana kubva, uye nekudaro inogona kugadzirwa kuita inotenderera system.
