1. He aha ka mea ike manawa-o-lele (ToF)?

He aha ka pahupaʻikiʻi manawa-o-holo?ʻO ka pahupaʻikiʻi paha ka hopu i ka lele ʻana o ka mokulele?He mea pili paha ia me nā mokulele a i ʻole nā ​​mokulele?ʻAe, he lōʻihi loa ia!

ʻO ToF kahi ana o ka manawa e hele ai kekahi mea, ʻāpana a nalu paha e hele i kahi mamao.Ua ʻike paha ʻoe e hana ana ka ʻōnaehana sonar a ka ʻōpeʻa?Ua like ka ʻōnaehana manawa-o-lele!

Nui nā ʻano o nā mea ʻike manawa-o-lele, akā ʻo ka hapa nui he mau kāmela manawa-o-holo a me nā mea nānā laser, e hoʻohana ana i kahi ʻenehana i kapa ʻia ʻo lidar (light detection and ranging) e ana i ka hohonu o nā kiko like ʻole i ke kiʻi ma ka hoʻomālamalama ʻana iā ia. me ke kukui infrared.

He mea maikaʻi loa ka ʻikepili i hana ʻia a hopu ʻia me ka hoʻohana ʻana i nā mea ʻike ToF no ka mea hiki iā ia ke hāʻawi i ka ʻike pedestrian, hōʻoia mea hoʻohana ma muli o nā hiʻohiʻona helehelena, ka palapala ʻāina me ka hoʻohana ʻana i nā algorithms SLAM (localization a me ka palapala ʻāina like ʻole), a me nā mea hou aku.

Hoʻohana nui ʻia kēia ʻōnaehana i nā robots, nā kaʻa kaʻa ponoʻī, a i kēia manawa i kāu kelepona paʻalima.No ka laʻana, inā ʻoe e hoʻohana ana iā Huawei P30 Pro, Oppo RX17 Pro, LG G8 ThinQ, a me nā mea ʻē aʻe, he kāmela ToF kāu kelepona!

He pahupaʻi ToF

2. Pehea e hana ai ka mea ike manawa-o-lele?

I kēia manawa, makemake mākou e hāʻawi i kahi hoʻolauna pōkole o ke ʻano o ka sensor manawa-o-lele a pehea e hana ai.

ToFHoʻohana nā mea ʻike i nā laser liʻiliʻi e hoʻokuʻu i ke kukui infrared, kahi e lele ai ka mālamalama i kekahi mea a hoʻi i ka ʻike.Ma muli o ka ʻokoʻa manawa ma waena o ka hoʻokuʻu ʻana o ka mālamalama a me ka hoʻi ʻana i ka mea ʻike ma hope o ka ʻike ʻia ʻana e ka mea, hiki i ka mea ʻike ke ana i ka mamao ma waena o ka mea a me ka ʻike.

I kēia lā, e ʻimi mākou i 2 ala pehea e hoʻohana ai ʻo ToF i ka manawa huakaʻi e hoʻoholo ai i ka mamao a me ka hohonu: me ka hoʻohana ʻana i nā pulses manawa, a me ka hoʻohana ʻana i ka hoʻololi ʻana i nā hawewe amplitude modulated.

E hoʻohana i nā pulses manawa

No ka laʻana, hana ia ma ka hoʻomālamalama ʻana i kahi pahu hopu me ka laser, a laila e ana i ke kukui i ʻike ʻia me kahi scanner, a laila e hoʻohana i ka māmā o ka mālamalama e extrapolate i ka mamao o ka mea e helu pololei i ka mamao i hele ai.Eia kekahi, hoʻohana ʻia ka ʻokoʻa o ka manawa hoʻihoʻi laser a me ka lōʻihi o ka nalu e hana i kahi hōʻike 3D kikohoʻe pololei a me nā hiʻohiʻona ʻili o ka mea i manaʻo ʻia, a ʻike maka ʻia kona mau hiʻohiʻona.

E like me kāu e ʻike ai ma luna, ua puhi ʻia ke kukui laser a laila hoʻihoʻi i ka mea i ka sensor.Me ka manawa hoʻihoʻi laser, hiki i nā kāmela ToF ke ana i nā mamao pololei i kahi manawa pōkole i hāʻawi ʻia i ka wikiwiki o ka huakaʻi māmā.(Hoʻololi ʻo ToF i ka mamao) ʻO kēia ke kumu hoʻohana i hoʻohana ʻia e ka mea loiloi e hōʻea i ka mamao pololei o kahi mea:

(ka wikiwiki o ka māmā x ka manawa o ka lele) / 2

Hoʻololi ʻo ToF i kahi mamao

E like me kāu e ʻike ai, e hoʻomaka ka manawa i ka wā e pio ai ke kukui, a i ka wā e loaʻa ai ka mālamalama hoʻihoʻi, e hoʻihoʻi ka manawa i ka manawa.Ke unuhi ʻelua, loaʻa ka "manawa lele" o ka mālamalama, a paʻa mau ka wikiwiki o ka māmā, no laila hiki ke maʻalahi ka mamao me ka hoʻohana ʻana i ke ʻano ma luna.Ma kēia ala, hiki ke hoʻoholo i nā kiko āpau ma ka ʻili o ka mea.

E hoʻohana i ka hoʻololi pae o ka nalu AM

A laila, ʻo kaToFHiki ke hoʻohana i nā nalu hoʻomau e ʻike i ka neʻe ʻana o ke kukui i ʻike ʻia e hoʻoholo i ka hohonu a me ka mamao.

Hoʻololi ka pae me ka hawewe AM

Ma ka hoʻololi ʻana i ka amplitude, hana ia i kahi kumu kukui sinusoidal me kahi alapine i ʻike ʻia, e ʻae i ka mea ʻike e hoʻoholo i ka neʻe ʻana o ke kukui i ʻike ʻia me ka hoʻohana ʻana i kēia ʻano:

kahi c ka wikiwiki o ka malamalama (c = 3 × 10^8 m/s), λ he nalu nalu (λ = 15 m), a ʻo f ka alapine, hiki ke helu hohonu i kēlā me kēia kiko ma ka ʻike.

Hiki wikiwiki kēia mau mea a pau ke hana mākou me ka māmā o ka māmā.Hiki iā ʻoe ke noʻonoʻo i ka pololei a me ka wikiwiki e hiki ai i nā mea ʻike ke ana?E hāʻawi mai iaʻu i laʻana, hele ka mālamalama i ka wikiwiki o 300,000 mau kilomika i kekona, inā he 5m ka mamao o kahi mea mai ou aku, ʻo ka ʻokoʻa manawa ma waena o ka mālamalama e haʻalele ana i ka pahupaʻikiʻi a hoʻi mai ma kahi o 33 nanokekona, ʻo ia wale nō ka like me 0.000000033 kekona!Auwe!ʻAʻole e haʻi ʻia, ʻo ka ʻikepili i hopu ʻia e hāʻawi iā ʻoe i kahi hōʻike kikohoʻe 3D pololei no kēlā me kēia pika i ke kiʻi.

Ma waho o ke kumu i hoʻohana ʻia, hāʻawi i kahi kumu kukui e hoʻomālamalama i ke ʻano holoʻokoʻa e hiki ai i ka sensor ke hoʻoholo i ka hohonu o nā kiko āpau.Hāʻawi ia hopena iā ʻoe i kahi palapala ʻāina mamao kahi e hoʻopili ai kēlā me kēia pika i ka mamao i kahi kikoʻī i ke kiʻi.Eia kekahi laʻana o ka pakuhi laulā ToF:

ʻO kahi laʻana o ka pakuhi laulā ToF

I kēia manawa ua ʻike mākou ua hana ʻo ToF, no ke aha he maikaʻi?No ke aha e hoʻohana ai?He aha ka maikaʻi o lākou?Mai hopohopo, nui nā pono o ka hoʻohana ʻana i kahi sensor ToF, akā ʻoiaʻiʻo aia kekahi mau palena.

3. ʻO nā pōmaikaʻi o ka hoʻohana ʻana i nā mea ʻike manawa-of-flight

Ana pololei a wikiwiki

Hoʻohālikelike ʻia me nā mea ʻike mamao ʻē aʻe e like me ultrasound a i ʻole lasers, hiki i nā mea ʻike manawa-o-lele ke haku i kahi kiʻi 3D o kahi hiʻohiʻona me ka wikiwiki loa.No ka laʻana, hiki i kahi pahu pahu ToF ke hana i kēia i hoʻokahi wale nō.ʻAʻole ʻo ia wale nō, hiki i ka ToF sensor ke ʻike pololei i nā mea i loko o ka manawa pōkole a ʻaʻole i hoʻopilikia ʻia e ka haʻahaʻa, ke kaomi ea a me ka mahana, e kūpono ia no ka hoʻohana ʻana i loko a me waho.

mamao loa

No ka hoʻohana ʻana o nā mea ʻike ToF i nā lasers, hiki iā lākou ke ana i nā mamao lōʻihi a me nā pae me ka pololei kiʻekiʻe.Hiki ke maʻalahi nā mea ʻike ToF no ka mea hiki iā lākou ke ʻike i nā mea kokoke a mamao o nā ʻano a me nā nui.

Hiki ke maʻalahi i ka manaʻo e hiki iā ʻoe ke hoʻonohonoho i nā optics o ka ʻōnaehana no ka hana maikaʻi loa, kahi e hiki ai iā ʻoe ke koho i nā ʻano transmitter a me nā mea hoʻokipa a me nā lens e kiʻi i ke kahua o ka ʻike.

Palekana

Ua hopohopo ka laser mai kaToFe ʻeha ka mea ʻike i kou mau maka?mai hopohopo!Hoʻohana ka nui o nā mea ʻike ToF i ka laser infrared haʻahaʻa e like me ke kumu kukui a hoʻokele me nā pulse modulated.Hoʻokō ka sensor i nā kūlana palekana laser Class 1 e hōʻoia i ka palekana i ka maka kanaka.

kūpono ke kumu kūʻai

Ke hoʻohālikelike ʻia me nā ʻenehana nānā ʻike hohonu 3D e like me nā ʻōnaehana kāmela māmā i kūkulu ʻia a i ʻole nā ​​​​laser rangefinders, ʻoi aku ka liʻiliʻi o nā mea ʻike ToF ma mua o lākou.

ʻOiai ʻo kēia mau palena āpau, hilinaʻi mau ʻo ToF a he ala wikiwiki loa e hopu ai i ka ʻike 3D.

4. Ka palena o ToF

ʻOiai he nui nā pōmaikaʻi o ToF, he mau palena pū kekahi.Aia kekahi o nā palena o ToF:

• Māmā ʻōpuʻu

Inā kokoke loa nā wahi ʻālohilohi loa i kāu mea ʻike ToF, hiki iā lākou ke hoʻopuehu nui i ka mālamalama i loko o kāu mea hoʻokipa a hana i nā mea kiʻi a me nā noʻonoʻo makemake ʻole, no ka mea, pono kāu ʻike ToF e hōʻike i ke kukui ke mākaukau ke ana.

• Nā manaʻo noʻonoʻo lehulehu

Ke hoʻohana nei i nā mea ʻike ToF ma nā kihi a me nā ʻano concave, hiki iā lākou ke hana i nā noʻonoʻo makemake ʻole, no ka mea, hiki i ke kukui ke lele i nā manawa he nui, e hoʻololi i ke ana.

• ʻO ke kukui ambient

ʻO ka hoʻohana ʻana i ka pahupaʻikiʻi ToF ma waho i ka mālamalama o ka lā hiki ke paʻakikī i ka hoʻohana ʻana i waho.Ma muli o ke kiʻekiʻe kiʻekiʻe o ka lā e hoʻopololei koke ai nā pika sensor, ʻaʻole hiki ke ʻike i ke kukui maoli i ʻike ʻia mai ka mea.

• ʻO ka hopena

Nā mea ʻike ToF a meToF lekihiki ke hoʻohana i nā ʻano hana like ʻole.Mai 3D Mapping, Industrial Automation, Obstacle Detection, Self-Driving Cars, Agriculture, Robotics, Indoor Navigation, Gsture Recognition, Object Scanning, Ana, Surveillance to Augmented Reality!ʻAʻole pau nā noi o ka ʻenehana ToF.

Hiki iā ʻoe ke hoʻokaʻaʻike mai iā mākou no nā pono o nā lens ToF.

ʻO Chuang An Optoelectronics ka nānā ʻana i nā lens optical wehewehe kiʻekiʻe e hana i kahi hōʻailona ʻike maikaʻi loa

Ua hana ʻo Chuang An Optoelectronics i nā ʻano like ʻoleNā leki TOFe like me:

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