Ihame ry'imikorere n'aho radar isubira inyuma ishyirwa
Izina ryuzuye rya radar yo gusubira inyuma ni "radar yo gusubira inyuma irwanya impanuka", yitwa kandi "igikoresho cy'ubufasha cyo guparika", cyangwa "sisitemu yo kuburira inyuma ya mudasobwa". Icyo gikoresho gishobora gupima intera y'imbogamizi no gutanga inama ku miterere y'imbogamizi zikikije ikinyabiziga kugira ngo cyongere umutekano wo gusubira inyuma.
Ubwa mbere, ihame ry'imikorere
Radar yo gusubiza inyuma ni igikoresho cy’ubufasha mu kurinda umutekano w’imodoka, kigizwe na sensor ya ultrasonic (izwi cyane nka probe), controller na ecran, alarm (horn cyangwa buzzer) n’ibindi bice, nk’uko bigaragara ku Ishusho ya 1. Sensor ya ultrasonic ni igice cy’ingenzi cya sisitemu yose yo gusubiza inyuma. Akazi kayo ni ko kohereza no kwakira imiraba ya ultrasound. Imiterere yayo igaragara ku Ishusho ya 2. Kuri ubu, frequency ikoreshwa cyane ya probe ni 40kHz, 48kHz na 58kHz y’ubwoko butatu. Muri rusange, uko frequency iba nyinshi, niko ubwiyongere bw’ubuhanga burushaho kwiyongera, ariko icyerekezo cyo kumenya inguni ni gito, bityo muri rusange koresha probe ya 40kHz.
Radar ya Astern ikoresha ihame ryo gupima ikirere. Iyo ikinyabiziga gishyizwe mu byuma bisubira inyuma, radar isubira inyuma yinjira mu buryo bwikora. Iyobowe n'umugenzuzi, probe ishyizwe kuri bumper y'inyuma yohereza imiraba ya ultrasonic kandi igatanga ibimenyetso bya echo iyo ihuye n'imbogamizi. Nyuma yo kwakira ibimenyetso bya echo bivuye kuri sensor, umugenzuzi akora isesengura ry'amakuru, bityo akabara intera iri hagati y'umubiri w'ikinyabiziga n'imbogamizi kandi agasuzuma aho imbogamizi ziherereye.
Ishusho y'urukuta rwa radar ihindura imiterere nk'uko bigaragara ku ishusho ya 3, MCU (MicroprocessorControlUint) binyuze mu gishushanyo cya gahunda, igenzura urukuta rwa elegitoroniki rwa analog switch drive, sensors za ultrasonic zikora. Ibimenyetso bya echo bya Ultrasonic bitunganywa hakoreshejwe urukuta rwihariye rwakira, rushungura kandi rukazamura, hanyuma bikamenyekana n'ibyambu 10 bya MCU. Iyo yakiriye ikimenyetso cy'igice cyose cya sensor, sisitemu ibona intera iri hafi binyuze muri algorithm runaka, kandi igatwara buzzer cyangwa display circuit kugira ngo yibutse umushoferi intera iri hafi y'imbogamizi na azimuth.
Akamaro k'ingenzi ka sisitemu ya radar yo gusubiza inyuma ni ugufasha guparika imodoka, gusohoka mu gikoresho cyo gusubira inyuma cyangwa guhagarika gukora iyo umuvuduko urenze umuvuduko runaka (ubusanzwe ni 5km/h).
[Inama] Umuraba wa Ultrasonic yerekeza ku muraba w'amajwi urenga urugero rw'amatwi y'abantu (uri hejuru ya 20kHz). Ufite imiterere yo gukwirakwira cyane, gukwirakwira neza mu murongo ugororotse, kuyobora neza, gukwirakwira guto, kwinjira cyane, umuvuduko wo gukwirakwira buhoro (hafi metero 340/s) n'ibindi. Umuraba wa Ultrasonic unyura mu bintu bikomeye bidasobanutse kandi ushobora kwinjira kugeza ku bujyakuzimu bwa metero mirongo. Iyo ultrasonic ihuye n'imyanda cyangwa aho ihurira, izakora imiraba igaragara, ishobora gukoreshwa mu gupima uburebure cyangwa gutandukanya, bityo ikaba ishobora gukorwamo sisitemu yo gutandukanya.
