He whai hua ngā whakamārō anga (ngā pae here, ngā pae o runga, me ētahi atu)?
Tuatahi, ka whakarerekē te rangatira o te whakakaha tāpiri i te mahi a te motuka taketake. Nā te mea, ko te pumau o te waka ka puta mā te roa o ēnei wāhanga, te matotoru, te wāhi tāutanga hei whakatutuki. Ka whakarerekē te whakakaha tāpiri i ngā āhuatanga o ngā wāhanga taketake, ka hua ake he huringa o te mahi a te waka. Ko te pātai tuarua, ka pai ake, ka kino ake rānei te mahi a te waka i muri i te tāpiri i ngā whakakaha tāpiri? Ko te whakautu paerewa: Tērā pea ka pai ake, ka kino ake rānei. Ka taea e ngā tāngata ngaio te whakahaere i te whanaketanga mahi ki tētahi huarahi pai ake. Hei tauira, i whakarerekētia e tētahi o ō mātou hoa mahi te motuka. E mōhio ana ia ki te wāhi ngoikore o te motuka taketake, ā, e mōhio ana ia me pēhea te whakapakari. Engari ki te kore koe e mōhio he aha koe i hanga ai i ngā huringa, ko te nuinga o te wā kei te hanga noa koe i ngā huringa, ka nui ake te kino i te pai! Kua whakamatautauria ngā motuka e hokona ana e koe mō ngā rau mano kiromita kia kore ai he tūponotanga i te whakamahinga o ngā motuka. Koinā te mahi a te miihini i roto i te wheketere motuka. Kāore ngā wāhanga kua whakarerekētia i roto i ngā whakamātautau mahi tino pakari me ngā whakamātautau pakari, kāore hoki te kounga i te whakamanahia. Mēnā ka whati, ka taka rānei i te wā e whakamahia ana, ka pā he mate ki te rangatira. Kaua e whakaaro he wāhanga whakapakari noa iho tēnei, he wāhanga pakaru, ā, ko ngā wāhanga taketake o te motuka. Kua whakaarohia kētia rānei ka whati te wāhanga whakapiri, ka mau ki te whenua, ka puta he aituā nui ki te huarahi... Hei whakarāpopototanga, he mōrearea te tāutanga anō, ā, me tūpato te whakahaere.
Nō reira, koinei te kōwhiringa haumaru me te pai rawa atu ko te whiriwhiri i ngā wāhanga taketake o Zhuomeng (Shanghai) Automobile Co., LTD. Nau mai, pātai mai.
Ko te radar whakahuri he taputapu āwhina haumaru waka, he mea tito mai i te pūoko ultrasonic (e mōhiotia whānuitia ana ko te tirotiro), te kaiwhakahaere me te whakaaturanga, te whakaoho (te haona, te buzzer rānei) me ētahi atu wāhanga, e whakaaturia ana i te Pikitia 1. Ko te pūoko ultrasonic te wāhanga matua o te pūnaha whakahuri katoa. Ko tana mahi he tuku me te whiwhi i ngā ngaru ultrasonic. Ko tōna hanganga e whakaaturia ana i te Pikitia 2. I tēnei wā, ko te auau mahi tirotiro e whakamahia whānuitia ana ko te 40kHz, 48kHz me te 58kHz e toru ngā momo. I te nuinga o te wā, ko te teitei ake o te auau, ko te teitei ake o te aro, engari ko te ahunga whakapae me te poutū o te koki kitenga he iti ake, nō reira ko te nuinga o te wā ka whakamahia te tirotiro 40kHz.
Ka whakamahia e te radar Astern te mātāpono o te oro-oro. Ina whakahokia te waka ki te taputapu whakamuri, ka uru aunoa te radar whakamuri ki te āhua mahi. I raro i te mana whakahaere o te kaiwhakahaere, ka tukuna e te tirotiro i runga i te parepare o muri ngā ngaru oro-oro, ā, ka whakaputa tohu whakaata ina tūtaki ki ngā arai. I muri i te whiwhinga o ngā tohu whakaata mai i te pūoko, ka tukatukahia e te kaiwhakahaere ngā raraunga, ā, ka tatau i te tawhiti i waenga i te tinana o te waka me ngā arai, ka aromatawai i te tūranga o ngā arai.
Ko te hoahoa poraka hanganga ara iahiko radar whakahurihuri e whakaaturia ana i te ahua 3, MCU (MicroprocessorControlUint) mā te hoahoa hōtaka kua whakaritea, ka whakahaere i te ara iahiko tuku pana hiko anarau e rite ana, ka mahi ngā pūoko ultrasonic. Ka tukatukahia ngā tohu whakaata ultrasonic mā ngā ara iahiko whiwhi, tātari me te whakanui motuhake, kātahi ka kitea e ngā tauranga 10 o te MCU. Ina whiwhihia te tohu o te wāhanga katoa o te pūoko, ka whiwhi te pūnaha i te tawhiti tata mā te raupaparorohiko motuhake, ka peia te buzzer, te ara iahiko whakaatu rānei hei whakamahara i te taraiwa mō te tawhiti arai tata me te azimuth.
Ko te mahi matua a te pūnaha radar whakamuri he āwhina i te tūnga waka, te puta i te taputapu whakamuri, te mutu rānei o te mahi ina neke ake te tere neke whanaunga i tētahi tere (ko te tikanga he 5km/h).
[Tohutohu] Ko te ngaru oroorooro e pā ana ki te ngaru orooro e nui ake ana i te whānuitanga o te whakarongo a te tangata (neke atu i te 20kHz). He āhuatanga ōna orooro auau teitei, te horapa rārangi tika, te ahunga pai, te iti o te diffraction, te kaha o te urunga, te tere horapa puhoi (tata ki te 340m/s) me ētahi atu. Ka haere ngā ngaru orooroorooro i roto i ngā totoka matapōkere, ā, ka taea te uru ki te hohonutanga o ngā tekau mita. Ina tūtaki te orooroorooro ki ngā poke, ki ngā atanga rānei, ka puta he ngaru whakaata, ka taea te whakamahi hei hanga i te kitenga hohonu, te whānuitanga rānei, ā, nō reira ka taea te hanga hei pūnaha whānuitanga.
