TOF 3DCAmara
An gina kyamarar TOF 3D da fasahar daukar hoto mai girma uku mafi ci gaba. Kyamarar zurfin TOF (Lokacin Tashi) sabuwar tsara ce ta gano nesa da kayayyakin fasahar daukar hoto ta 3D. Tana ci gaba da aika hasken zuwa ga abin da aka nufa, sannan tana amfani da na'urar firikwensin don karɓar hasken da aka dawo da shi daga abin, kuma tana samun nisan abin da aka nufa ta hanyar gano lokacin tashi (dawo da dawowa) na bugun haske.
Kyamarorin TOF galibi suna amfani da hanyar lokacin tashi a auna nesa, wato, lokacin amfani da raƙuman ultrasonic, da sauransu, ku tuna ku auna, kuma za ku iya ƙara fahimtar nisan. Ana iya yin wannan auna nisa ta hanyar hasken haske, don haka fa'idodin amfani da gaske har yanzu suna bayyane. , lokacin da aka yi amfani da wannan kyamarar, ana iya auna girman ta hanyar hoto, wanda yake da matukar dacewa. Kuma wannan hanyar amfani da ita ta hanyar haskaka haske ne, ana iya sanin nisan ta hanyar ƙididdige lokacin dawowa, kuma ana iya samun fahimtar da ta dace ta hanyar firikwensin. Fa'idar amfani da wannan nau'in kyamara a bayyane take. Ba wai kawai pixels sun fi girma ba, har ma da ƙara wannan firikwensin na iya sa samun sa a kan taswirar girman ya zama na gaske, kuma babu buƙatar sassan motsi, kuma ana iya samun sakamako mafi kyau ta hanyar aunawa kawai. Yana da matukar amfani a aikace-aikace, ko yana da matsayi ko aunawa, matuƙar kuna da wannan nau'in kyamara, za ku iya zama idanun ƙarin injuna da kayan aiki a ainihin aiki, kuma da gaske kammala aikin atomatik.
Kyamarorin TOF za su iya guje wa cikas ta atomatik a amfani da su. Ta hanyar aikin ji, ana iya cimma amfani da atomatik yadda ya kamata, kuma fa'idodin amfani da wannan kyamarar a bayyane suke. Ba wai kawai tana iya sanin girma da bayanai a kan lokaci ba, har ma da sarrafa kaya, Inganta aikin sarrafa kansa ya fi inganci, yana iya hanzarta inganta inganci, kuma yana iya samun fa'idodi masu yawa a auna nesa da gabatar da hoto. Tushen wannan kyamarar zai iya. Yana gabatar da sakamako mafi kyau, kuma ta hanyar kunna bugun jini, za ku iya sanin cikakken abin da aka nufa, ba wai kawai yana iya bin diddigin ba, har ma yana iya yin ƙirar girma uku a kan hoton, wanda za a iya cewa yana da daidaito sosai.
YayaTOFKyamarori Suna Aiki
Kyamarorin TOF suna amfani da gano haske mai aiki kuma yawanci sun haɗa da waɗannan sassa:
1. Na'urar sanyaya iska
Na'urar haskakawa tana buƙatar bugun bugun da ya daidaita tushen haske kafin ya fitar da shi, kuma mitar bugun hasken da aka daidaita zai iya kaiwa 100MHz. Sakamakon haka, ana kunna da kashe tushen hasken sau dubbai yayin ɗaukar hoto. Kowane bugun haske yana da tsawon 'yan nanoseconds kawai. Sigar lokacin fallasa kyamara tana ƙayyade adadin bugun da ya faru a kowane hoto.
Domin cimma daidaiton ma'auni, dole ne a sarrafa bugun hasken daidai don samun daidai lokacin, lokacin tashi, da lokacin faɗuwa. Domin ko da ƙananan karkacewa na nanosecond ɗaya kawai na iya haifar da kurakuran auna nisa har zuwa santimita 15.
Irin waɗannan mitoci masu girma da daidaito za a iya cimma su ne kawai ta amfani da LEDs masu inganci ko diodes na laser.
Gabaɗaya, tushen hasken infrared tushen hasken infrared ne wanda idon ɗan adam ba zai iya gani ba.
2. Ruwan tabarau na gani
Ana amfani da shi don tattara hasken da aka nuna da kuma samar da hoto a kan na'urar firikwensin gani. Duk da haka, ba kamar ruwan tabarau na gani na yau da kullun ba, ana buƙatar ƙara matatar wucewa ta bandeji a nan don tabbatar da cewa haske mai tsayi iri ɗaya da tushen haske zai iya shiga. Manufar wannan ita ce a danne tushen haske mara daidaituwa don rage hayaniya, yayin da ake hana na'urar firikwensin mai saurin ɗaukar hoto ya wuce gona da iri saboda tsangwama daga hasken waje.
3. Na'urar firikwensin hoto
Tushen kyamarar TOF. Tsarin firikwensin yayi kama da na firikwensin hoto na yau da kullun, amma ya fi rikitarwa fiye da firikwensin hoto. Yana ɗauke da rufewa 2 ko fiye don ɗaukar samfurin hasken da aka nuna a lokuta daban-daban. Saboda haka, pixel ɗin guntu na TOF ya fi girma fiye da girman pixel na firikwensin hoto na gabaɗaya, gabaɗaya kusan 100um.
4. Na'urar sarrafawa
Jerin bugun haske da na'urar sarrafa lantarki ta kyamara ta haifar an daidaita shi daidai da buɗewa/rufe rufewar lantarki ta guntu. Yana yin karantawa da canza cajin firikwensin kuma yana jagorantar su zuwa sashin bincike da hanyar haɗin bayanai.
5. Na'urar kwamfuta
Na'urar kwamfuta za ta iya yin rikodin taswirar zurfin daidai. Taswirar zurfin yawanci hoto ne mai siffar launin toka, inda kowace ƙima ke wakiltar nisan da ke tsakanin saman haske da kyamara. Domin samun sakamako mafi kyau, yawanci ana yin daidaita bayanai.
Ta yaya TOF ke auna nisa?
Gabaɗaya ana daidaita tushen hasken ta hanyar bugun raƙuman murabba'i, saboda yana da sauƙin aiwatarwa tare da da'irorin dijital. Kowane pixel na kyamarar zurfin an haɗa shi da na'urar ɗaukar hoto (kamar photodiode), wanda zai iya canza hasken da ya faru zuwa wutar lantarki. Na'urar ɗaukar hoto tana da maɓallan mita da yawa (G1, G2 a cikin hoton da ke ƙasa) don jagorantar wutar zuwa capacitors daban-daban waɗanda zasu iya adana caji (S1, S2 a cikin hoton da ke ƙasa).
Na'urar sarrafawa da ke kan kyamara tana kunna hasken kuma tana kashe shi, tana aika bugun haske. A lokaci guda, na'urar sarrafawa tana buɗewa kuma tana rufe rufewar lantarki akan guntu. Cajin S0Ana adana shi ta wannan hanyar ta hanyar bugun haske a kan abin da ke da tasirin haske.
Sai na'urar sarrafawa ta sake kunna kuma ta kashe tushen haske a karo na biyu. A wannan karon, rufewar za ta buɗe daga baya, a daidai lokacin da aka kashe tushen haske. Cajin S1Ana adana shi yanzu a kan abin da ke da tasirin haske.
Saboda tsawon lokacin bugun haske guda ɗaya yana da ɗan gajeren lokaci, ana maimaita wannan tsari sau dubbai har sai lokacin fallasa ya kai. Sannan ana karanta ƙimar da ke cikin na'urar firikwensin haske kuma ana iya ƙididdige ainihin nisan daga waɗannan ƙimar.
Lura cewa saurin haske shine c, tpshine tsawon lokacin bugun haske, S0yana wakiltar cajin da aka tara ta hanyar rufewa ta baya, kuma S1yana wakiltar cajin da aka tara ta hanyar rufewa mai jinkiri, sannan ana iya ƙididdige nisan d ta hanyar dabarar da ke ƙasa:
Mafi ƙarancin nisan da za a iya aunawa shine lokacin da aka tattara dukkan caji a cikin S0 a lokacin rufewa na farko kuma ba a tattara wani caji a cikin S1 a lokacin rufewa da aka jinkirta ba, watau S1 = 0. Sauya cikin dabarar zai ba da mafi ƙarancin nisan da za a iya aunawa d=0.
Mafi girman nisan da ake aunawa shine inda aka tattara dukkan caji a cikin S1 kuma ba a tattara caji kwata-kwata a cikin S0. Sannan dabarar ta samar da d = 0.5 xc × tp. Saboda haka, matsakaicin nisan da ake aunawa ana tantance shi ta hanyar faɗin bugun haske. Misali, tp = 50 ns, wanda aka maye gurbinsa da dabarar da ke sama, matsakaicin nisan aunawa d = 7.5m.
Tsarin kayan aiki da fasalulluka na samfura
Yi amfani da mafi kyawun mafita na kayan aikin TOF a duniya; Laser mai aminci na Class I, ƙudurin pixel mai girma, kyamarar masana'antu, ƙarami, ana iya amfani da ita don tattara bayanai masu zurfi a cikin gida da waje.
Tsarin sarrafa hoto
Ta amfani da tsarin sarrafa hotuna da nazarinsu mafi girma a duniya, yana da ƙarfin sarrafawa mai ƙarfi, yana ɗaukar ƙarancin albarkatun CPU, yana da daidaito mai kyau da kuma kyakkyawan jituwa.
Aikace-aikace
Ana amfani da kyamarorin masana'antu na dijital galibi a cikin sarrafa kansa na masana'antu, kewayawa ta AGV, auna sarari, zirga-zirgar ababen hawa da sufuri mai hankali (ITS), da kimiyyar likitanci da rayuwa. Ana amfani da na'urar daukar hoto ta yanki, na'urar daukar hoto ta layi da kyamarorin hanyar sadarwa sosai a cikin auna matsayi da yanayin abu, sa ido kan ayyukan marasa lafiya da matsayi, gane fuska, sa ido kan zirga-zirga, duba lantarki da semiconductor, ƙidayar mutane da auna layi da sauran fannoni.
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Lokacin Saƙo: Maris-07-2023
