Melao-motheo ea ts'ebetso le lintlha tsa ho kenya radar e khutlisetsang morao
Lebitso le felletseng la radar e kgutlelang morao ke "reversing anti-collision radar", eo hape e bitswang "parking axiliary device", kapa "reversing computer warning system".Sesebelisoa se ka ahlola sebaka sa litšitiso mme se eletsa boemo ba litšitiso tse potolohileng koloi ho ntlafatsa polokeho ea ho khutlisa.
Ea pele, molao-motheo oa ho sebetsa
Ho khutlisetsa radar ke sesebelisoa se thusang ho paka, se entsoeng ka ultrasonic sensor (eo hangata e tsejoang e le probe), molaoli le pontšo, alamo (lenaka kapa buzzer) le likarolo tse ling, joalokaha ho bontšitsoe setšoantšong sa 1. Sensor ea Ultrasonic ke karolo ea mantlha ea tsamaiso eohle ea ho tsosolosa.Mosebetsi oa eona ke ho romela le ho amohela maqhubu a ultrasonic.Sebopeho sa eona se bontšoa ho Setšoantšo sa 2. Hona joale, mokhoa o tloaelehileng oa ho sebetsa oa probe oa 40kHz, 48kHz le 58kHz mefuta e meraro.Ka kakaretso, ha maqhubu a phahame, maikutlo a phahame, empa tsela e tšekaletseng le e otlolohileng ea Angle ea ho lemoha e nyane, kahoo ka kakaretso sebelisa 40kHz probe.
Radar ea Astern e sebelisa molao-motheo oa ultrasonic.Ha koloi e kenngoa ka morao, radar e khutlelang morao e kena ka ho toba sebakeng sa ho sebetsa.Tlas'a taolo ea molaoli, probe e kentsoeng bumper e ka morao e romela maqhubu a ultrasonic le ho hlahisa matšoao a echo ha ho kopana le litšitiso.Kamora ho amohela matšoao a echo ho tsoa ho sensor, molaoli o etsa ts'ebetso ea data, kahoo a bala sebaka se pakeng tsa 'mele oa koloi le litšitiso le ho ahlola boemo ba litšitiso.
Setšoantšo sa block block sa radar se bonts'itsoeng setšoantšong sa 3, MCU (MicroprocessorControlUint) ka moralo o hlophisitsoeng oa lenaneo, laola potoloho ea phetisetso ea li-analog switch drive, li-sensor tsa ultrasonic lia sebetsa.Lipontšo tsa echo tsa Ultrasonic li sebetsoa ka li-circuits tse amohelang, ho sefa le ho holisa, ebe li bonoa ke likou tse 10 tsa MCU.Ha o amohela letšoao la karolo e feletseng ea sensor, tsamaiso e fumana sebaka se haufi ka ho fetisisa ka algorithm e itseng, 'me e khanna buzzer kapa pontšo ea potoloho ho hopotsa mokhanni oa sebaka se haufi sa tšitiso le azimuth.
Mosebetsi o ka sehloohong oa tsamaiso ea radar e khutlisetsang morao ke ho thusa ho paka, ho tsoa ka morao kapa ho emisa ho sebetsa ha lebelo le tsamaeang le feta lebelo le itseng (hangata 5km / h).
[Keletso] Ultrasonic wave e bolela leqhubu la molumo le fetang mefuta e mengata ea kutlo ea motho (ka holimo ho 20kHz).E na le litšoaneleho tsa maqhubu a phahameng, ho phatlalatsoa ha mela e otlolohileng, ho tsamaisa hantle, ho fapanyetsana ho fokolang, ho kenella ka matla, lebelo le liehang la ho hasana (hoo e ka bang 340m / s) joalo-joalo.Maqhubu a Ultrasonic a tsamaea ka har'a lintho tse thata tse opaque 'me a ka phunyeletsa botebo ba limithara tse mashome.Ha ultrasonic e kopana le litšila kapa li-interfaces, e tla hlahisa maqhubu a bonahatsang, a ka sebelisoang ho etsa ho lemoha ka botebo kapa ho fapana, 'me kahoo e ka etsoa tsamaiso e fapaneng.
