1. He aha te pūoko wā-o-te-rere (ToF)?

He aha te kāmera wā-rere? Ko te kāmera e hopu ana i te rere o te waka rererangi? He pānga ki ngā waka rererangi, ki ngā waka rererangi rānei? Āe, he tawhiti rawa atu!

Ko te ToF he ine i te wā e haere ai tētahi mea, matūriki, ngaru rānei i tētahi tawhiti. I mōhio koe kei te mahi te pūnaha sonar a te pekapeka? He rite tonu te pūnaha wā-rere!

He maha ngā momo pūoko wā-o-te-rere, engari ko te nuinga he kāmera wā-o-te-rere me ngā matawai taiaho, e whakamahi ana i te hangarau e kiia nei ko te lidar (te kimi mārama me te whānuitanga) hei ine i te hohonutanga o ngā pūwāhi rerekē o te ahua mā te whakamārama ki te mārama whero-whero.

He tino whai hua ngā raraunga i hangaia, i hopukina hoki mā te whakamahi i ngā pūoko ToF, nā te mea ka taea te kimi i ngā kaihaerere, te manatoko kaiwhakamahi i runga i ngā āhuatanga o te kanohi, te mahere taiao mā te whakamahi i ngā rauropi SLAM (simultaneous localization and mapping), me ētahi atu.

He whānuitia te whakamahinga o tēnei pūnaha i roto i ngā karetao, ngā motuka taraiwa-whaiaro, tae noa ki tēnei wā i roto i tō pūrere pūkoro. Hei tauira, ki te mea kei te whakamahi koe i te Huawei P30 Pro, Oppo RX17 Pro, LG G8 ThinQ, me ētahi atu, he kāmera ToF tō waea!

He kāmera ToF

2. Me pēhea te mahi a te pūoko wā-o-te-rere?

Nā, e hiahia ana mātou ki te tuku kupu whakataki poto mō te tikanga o te pūoko rere-wā me tana mahi.

KiFKa whakamahia e ngā pūoko ngā taiaho iti hei tuku i te mārama whero-whero, ka peke te mārama hua mai i tētahi mea ka hoki ki te pūoko. I runga i te rerekētanga wā i waenga i te tukunga o te mārama me te hokinga ki te pūoko i muri i te whakaatahia e te mea, ka taea e te pūoko te ine i te tawhiti i waenga i te mea me te pūoko.

I tēnei rā, ka tūhuratia e tātou ngā huarahi e rua e whakamahi ai a ToF i te wā haere hei whakatau i te tawhiti me te hohonu: mā te whakamahi i ngā pāoro wā, me te whakamahi i te nekehanga ā-wāhanga o ngā ngaru kua whakarerekētia te kaha.

Whakamahia ngā pāorooro kua whakaritea te wā

Hei tauira, mā te whakamārama i tētahi ūnga ki te rēseri, kātahi ka ine i te mārama whakaata ki te matawai, kātahi ka whakamahi i te tere o te mārama hei whakawhānui i te tawhiti o te mea hei tatau tika i te tawhiti i haerea. Hei tāpiri, ko te rerekētanga o te wā whakahoki rēseri me te roanga ngaru ka whakamahia hei hanga i tētahi whakaaturanga matihiko 3D tika me ngā āhuatanga o te mata o te ūnga, me te mahere ā-kanohi i ōna āhuatanga takitahi.

E kitea ana i runga ake nei, ka tukuna te mārama o te rēseri, kātahi ka peke atu i te mea ki te pūoko. Mā te wā whakahoki rēseri, ka taea e ngā kāmera ToF te ine i ngā tawhiti tika i roto i te wā poto i runga i te tere o te haere o te mārama. (Ka hurihia te ToF ki te tawhiti) Koinei te tātai e whakamahia ana e te kaitātari hei tae atu ki te tawhiti tika o tētahi mea:

(tere o te mārama x wā rere) / 2

Ka huri a ToF ki te tawhiti

E kite ana koe, ka tīmata te taima i te wā e tineia ana te rama, ā, ina whiwhi te kaiwhiwhi i te rama whakahoki, ka whakahokia mai e te taima te wā. Mā te tango rua, ka whiwhihia te "wā rere" o te mārama, ā, he pumau te tere o te mārama, nō reira ka taea te tatau ngāwari i te tawhiti mā te whakamahi i te tātai i runga ake nei. Mā tēnei, ka taea te whakatau i ngā pūwāhi katoa i runga i te mata o te mea.

Whakamahia te nekehanga ā-wāhanga o te ngaru AM

Muri iho, ko teKiFka taea hoki te whakamahi i ngā ngaru tonu hei kite i te nekehanga ā-wāhanga o te mārama e whakaatahia ana hei whakatau i te hohonutanga me te tawhiti.

Te nekehanga ā-wāhanga mā te whakamahi i te ngaru AM

Mā te whakarerekē i te kaha, ka hangaia he pūtake mārama sinusoidal me te auau e mōhiotia ana, ka taea ai e te pūoko te whakatau i te nekehanga ā-wāhanga o te mārama whakaata mā te whakamahi i te tātai e whai ake nei:

ko c te tere o te mārama (c = 3 × 10^8 m/s), ko λ te roanga ngaru (λ = 15 m), ā, ko f te auau, ka taea te tatau ngāwari i ia pūwāhi i runga i te pūoko.

He tino tere te tupu o ēnei mea katoa i a tātou e mahi ana i te tere o te mārama. Ka taea e koe te whakaaro ki te tika me te tere o te ine a ngā pūoko? Me hoatu e au he tauira, ka tere te haere o te mārama i te tere o te 300,000 kiromita ia hekona, ki te mea kei te 5m te tawhiti o tētahi mea i a koe, ko te rerekētanga wā i waenga i te mārama e wehe atu ana i te kāmera me te hokinga mai he tata ki te 33 nanohekona, he rite noa ki te 0.000000033 hēkona! Āe! Kāore e kore, mā ngā raraunga kua hopukina koe e hoatu he whakaaturanga matihiko 3D tika mō ia pika i roto i te ahua.

Ahakoa te mātāpono e whakamahia ana, mā te whakarato i tētahi pūtake mārama e whakamārama ana i te tirohanga katoa ka taea e te pūoko te whakatau i te hohonutanga o ngā pūwāhi katoa. Mā tēnei hua ka puta he mahere tawhiti e whakaatu ana ia pika i te tawhiti ki te pūwāhi e rite ana i roto i te tirohanga. Koinei te tauira o tētahi kauwhata whānuitanga ToF:

He tauira o te kauwhata whānuitanga ToF

Nā te mea kua mōhio tātou kei te mahi a ToF, he aha i pai ai? He aha te take e whakamahia ai? He aha ngā painga o aua mea? Kaua e manukanuka, he maha ngā painga o te whakamahi i te pūoko ToF, engari he iti noa ngā herenga.

3. Ngā painga o te whakamahi i ngā pūoko wā-o-te-rere

Ine tika me te tere

Ki te whakaritea ki ētahi atu pūoko tawhiti pērā i te ultrasound, i te laser rānei, ka taea e ngā pūoko wā-o-te-rere te tito i tētahi whakaahua 3D o tētahi tirohanga i roto i te wā tino tere. Hei tauira, kotahi noa te wā ka taea e te kāmera ToF te mahi i tēnei. Haunga tēnā, ka taea e te pūoko ToF te kite tika i ngā mea i roto i te wā poto, ā, kāore e pāngia e te haumākū, te pēhanga hau me te pāmahana, he mea e pai ai mō te whakamahinga o roto, o waho hoki.

tawhiti

Nā te mea he whakamahi ngā pūoko ToF i ngā taiaho, ka taea hoki e rātou te ine i ngā tawhiti me ngā awhe roa me te tino tika. He ngāwari ngā pūoko ToF nā te mea ka taea e rātou te kite i ngā mea tata me ngā mea tawhiti o ngā āhua me ngā rahi katoa.

He ngāwari hoki, nā te mea ka taea e koe te whakarite i ngā karu o te pūnaha kia pai ai te mahi, ka taea e koe te whiriwhiri i ngā momo tuku me ngā momo kaiwhiwhi me ngā karu arotahi kia whiwhi ai i te tirohanga e hiahiatia ana.

Haumaru

Āwangawanga kei puta te rēseri mai i teKiFKa whara ō kanohi i te pūoko? Kaua e manukanuka! He maha ngā pūoko ToF e whakamahi ana i te taiaho pūwhero iti-mana hei pūtake mārama, ā, e peia ana e ia me ngā pāoro whakarerekē. Ka tutuki te pūoko i ngā paerewa haumaru taiaho Akomanga 1 hei whakarite kia haumaru ki te kanohi tangata.

whai hua te utu

Ki te whakaritea ki ētahi atu hangarau matawai hōhonutanga 3D pērā i ngā pūnaha kāmera mārama hanganga, i ngā ine tawhiti laser rānei, he iti ake te utu o ngā pūoko ToF ki te whakaritea ki ēnei.

Ahakoa ēnei herenga katoa, he tino pono tonu a ToF, ā, he tikanga tino tere hoki mō te hopu i ngā mōhiohio 3D.

4. Ngā Here o te ToF

Ahakoa he maha ngā painga o te ToF, he iti anō ōna herenga. Ko ētahi o ngā herenga o te ToF ko:

• Mārama marara

Mena he tino tata ngā mata kanapa ki tō pūoko ToF, ka nui rawa te mārama e marara ana ki roto i tō pūoko, ā, ka puta he taonga me ngā whakaata kāore e hiahiatia, nā te mea ko te whakaata anake o te mārama e hiahiatia ana e tō pūoko ToF kia rite te ine.

• Ngā whakaata maha

Ina whakamahia ngā pūoko ToF i ngā kokonga me ngā āhua kōpiko, ka puta he whakaata kāore e hiahiatia, i te mea ka taea e te mārama te peke atu i ngā wā maha, ka whakapēkē i te ine.

• Mārama āwhiowhio

Ka uaua pea te whakamahi i te kāmera ToF i waho i raro i te rā kanapa. Nā te kaha o te rā ka tere te whakakī o ngā pika o te pūoko, ā, kāore e taea te kite i te mārama tuturu e whakaatahia ana mai i te mea.

• Ko te whakatau

Ngā pūoko ToF me ngāArotahi ToFka taea te whakamahi i roto i ngā momo tono. Mai i te Mahere 3D, te Aunoatanga Ahumahi, te Kite Arai, ngā Waka Taraiwa-Ā-Whaiaro, te Ahuwhenua, te Robotics, te Whakatere ā-Rohe, te Mōhiotanga Tohu, te Matawai Taonga, ngā Ine, te Tirotiro ki te Mooni Whakanuia! ​​He mutunga kore ngā tono o te hangarau ToF.

Ka taea e koe te whakapā mai ki a mātou mō ngā hiahia katoa mō ngā karaihe ToF.

Ko te arotahi a Chuang An Optoelectronics ki ngā karaihe whatu whakamāramatanga teitei hei waihanga i tētahi waitohu tirohanga tino pai.

Kua hangaia e Chuang An Optoelectronics he maha ngā momoNgā karaihe TOFpērā i:

CH3651A f3.6mm F1.2 1/2″ IR850nm

CH3651B f3.6mm F1.2 1/2″ IR940nm

CH3652A f3.3mm F1.1 1/3″ IR850nm

CH3652B f3.3mm F1.1 1/3″ IR940nm

CH3653A f3.9mm F1.1 1/3″ IR850nm

CH3653B f3.9mm F1.1 1/3″ IR940nm

CH3654A f5.0mm F1.1 1/3″ IR850nm

CH3654B f5.0mm F1.1 1/3″ IR940nm