Akụkọ - Ụkpụrụ bụ isi na ngwa nke usoro TOF (Oge nke ụgbọ elu).

Debanye aha na Social Media anyị maka Biputere ngwa ngwa

Usoro isiokwu a na-achọ inye ndị na-agụ akwụkwọ nghọta miri emi na ọganihu na-aga n'ihu nke usoro oge nke ụgbọ elu (TOF). Ọdịnaya kpuchiri nkọwapụta zuru oke nke sistemu TOF, gụnyere nkọwa zuru ezu nke ma TOF (iTOF) na-apụtaghị ìhè na TOF (dTOF). Akụkụ ndị a na-abanye n'ime usoro sistemụ, uru na ọghọm ha, yana algọridim dị iche iche. Akụkọ ahụ na-enyochakwa akụkụ dị iche iche nke usoro TOF, dị ka Vertical Cavity Surface Emitting Lasers (VCSELs), nnyefe na anya anya nnabata, na-enweta sensọ dị ka CIS, APD, SPAD, SiPM, na sekit ọkwọ ụgbọ ala dị ka ASIC.

Okwu mmalite nke TOF (Oge ụgbọ elu)

Ụkpụrụ bụ isi

TOF, na-eguzo maka oge ụgbọ elu, bụ usoro a na-eji tụọ anya site na ịgbakọ oge ọ na-ewe maka ìhè iji gaa ebe dị anya na ọkara. A na-etinye ụkpụrụ a n'ụzọ bụ isi n'ọnọdụ ọnọdụ TOF anya ma ọ kwụ ọtọ. Usoro a na-agụnye isi iyi ọkụ na-ebunye ọkụ ọkụ, na-edekọ oge ikuku. Ìhè a na-egosiputa ihe e lekwasịrị anya, onye nnata na-ejide ya, a na-ahụkwa oge nnabata. Ọdịiche dị na oge ndị a, nke akpọrọ t, na-ekpebi ebe dị anya (d = ọsọ ọkụ (c) × t / 2).

Ụdị ihe mmetụta ToF

Enwere ụdị isi abụọ nke sensọ ToF: ngwa anya na electromagnetic. Ihe mmetụta ToF anya, nke a na-ahụkarị, na-eji ọkụ ọkụ, na-adịkarị na oke infrared, maka nha anya. A na-esi na ihe mmetụta na-apụta, na-atụgharị ihe, ma laghachi na ihe mmetụta, ebe a na-atụ oge njem ma jiri ya gbakọọ anya. N'ụzọ dị iche, ihe mmetụta electromagnetic ToF na-eji ebili mmiri electromagnetic, dị ka radar ma ọ bụ lidar, iji tụọ anya. Ha na-arụ ọrụ n'ụkpụrụ yiri nke ahụ mana ha na-eji usoro dị ichenha anya.

Ngwa nke ihe mmetụta ToF

Sensọ ToF dị ọtụtụ ma ejikọtala ya na mpaghara dị iche iche:

Robotics:Eji maka nchọpụta ihe mgbochi na igodo. Dịka ọmụmaatụ, robots dị ka Roomba na Boston Dynamics 'Atlas na-eji igwefoto omimi ToF maka ịdepụta gburugburu ha na nhazi mmegharị.

Sistemụ nchekwa:Igwe ihe mmetụta na-emegharị emegharị maka ịchọpụta ndị omempụ, ịkpalite mkpu, ma ọ bụ ịgbalite sistemụ igwefoto.

Ụlọ ọrụ ụgbọ ala:Etinyere n'ime sistemu inyeaka ndị ọkwọ ụgbọ ala maka njikwa ụgbọ mmiri na-eme mgbanwe na ịzere nkukota, na-agbasawanye na ụdị ụgbọ ala ọhụrụ.

Ubi ahụike: A na-arụ ọrụ na onyogho na-adịghị emerụ ahụ na nchọpụta nchọpụta, dị ka anya coherence tomography (OCT), na-emepụta ihe oyiyi anụ ahụ dị elu.

Eletrọnịkị ndị ahịa: Ejikọtara n'ime smartphones, mbadamba na laptọọpụ maka njirimara dị ka njirimara ihu, nyocha biometric, na njirimara mmegharị ahụ.

Drones:A na-eji ya maka ịnyagharị, ịzere nkukota, yana n'ịgbasa nchegbu nzuzo na ụgbọ elu

Ụlọ ọrụ TOF System Architecture

Usoro TOF na-ahụkarị nwere ọtụtụ isi ihe iji nweta nha anya dị ka akọwara:

· Mbufe (Tx):Nke a gụnyere isi iyi ọkụ laser, tumadi aVCSEL, ASIC ọkwọ ụgbọ ala iji kwọọ laser, yana ngwa anya maka njikwa beam dị ka lenses collimating ma ọ bụ ihe anya anya dị iche, na nzacha.
· Onye nnata (Rx):Nke a nwere lenses na ihe nzacha na njedebe nnata, ihe mmetụta dị ka CIS, SPAD, ma ọ bụ SiPM dabere na usoro TOF, na ihe ngosi ngosi ihe oyiyi (ISP) maka nhazi nnukwu data sitere na mgbawa nnata.
·Njikwa Ike:Ijikwa ụlọ ọrụnjikwa ugbu a maka VCSEL na nnukwu voltaji maka SPAD dị oke mkpa, na-achọ njikwa ike siri ike.
· oyi akwa Software:Nke a gụnyere firmware, SDK, OS, na oyi akwa ngwa.

Ihe owuwu a na-egosi ka ọkụ laser, sitere na VCSEL ma gbanwee site na ngwa anya, na-aga na mbara igwe, na-egosipụta ihe, wee laghachi na onye nnata. Ngụkọta oge na-agafe na usoro a na-ekpughe ozi dị anya ma ọ bụ omimi. Otú ọ dị, ihe owuwu a anaghị ekpuchi ụzọ mkpọtụ, dị ka ụda ọkụ na-akpata ìhè anyanwụ ma ọ bụ ụda ọtụtụ ụzọ site na ntụgharị uche, nke a na-atụle n'ikpeazụ na usoro.

Nhazi nke TOF Systems

A na-ahazi usoro TOF site na usoro nha anya ha: TOF (dTOF) na TOF na-apụtaghị ìhè (iTOF), nke ọ bụla nwere ngwaike dị iche iche na usoro algorithmic. Usoro nke mbụ na-akọwapụta ụkpụrụ ha tupu ha abanye n'ime ntụle ntụle nke uru ha, ihe ịma aka na usoro usoro.

N'agbanyeghị ụkpụrụ nke yiri ka ọ dị mfe nke TOF - na-ewepụta ọkụ ọkụ na ịchọpụta nlọghachi ya iji gbakọọ anya - mgbagwoju anya dị n'ichepụta ìhè na-alọghachi site na ìhè ambient. A na-elebara nke a anya site n'iwepụ ọkụ na-egbuke egbuke nke ọma iji nweta oke mgbama na-eme mkpọtụ na ịhọrọ ogologo ebili mmiri kwesịrị ekwesị iji belata nnyonye anya ọkụ gburugburu. Ụzọ ọzọ bụ itinye koodu ọkụ na-ekupụ iji mee ka ọ dị iche ma ọ laghachi azụ, dịka akara SOS nwere ọkụ ọkụ.

Usoro a na-aga n'ihu iji tụnyere dTOF na iTOF, na-ekwurịta ọdịiche ha, uru, na ihe ịma aka ha n'ụzọ zuru ezu, na-ekewakwa usoro TOF dabere na mgbagwoju anya nke ozi ha na-enye, sitere na 1D TOF ruo 3D TOF.

dTOF

Direct TOF na-atụ kpọmkwem oge ụgbọ elu foton. Akụkụ bụ isi ya, Single Photon Avalanche Diode (SPAD), nwere mmetụta zuru oke iji chọpụta otu foton. dTOF na-eji Time Correlated Single Photon Counting (TCSPC) tụọ oge ndị bịarutere foton, na-emepụta ihe ndekọ akụkọ ihe mere eme iji wepụta ogologo oge dị anya dabere na ugboro kachasị elu nke otu oge dị iche.

iTOF

TOF na-apụtaghị ìhè na-agbakọ oge ụgbọ elu dabere na ọdịiche nke akụkụ dị n'etiti ụdị ikuku na-ebupụta na enwetara, na-ejikarị mgbama ebili mmiri na-aga n'ihu ma ọ bụ pulse modulation. iTOF nwere ike iji ụkpụrụ ụlọ ihe mmetụta ihe onyonyo ọkọlọtọ, na-atụle ike ọkụ ka oge na-aga.

A na-ekewakwa iTOF ka ọ bụrụ mgbanwe mgbanwe mgbanwe na-aga n'ihu (CW-iTOF) na pulse modulation (Pulsed-iTOF). CW-iTOF na-atụ ngbanwe oge n'etiti ebili mmiri na-ebupụta na enwetara, ebe Pulsed-iTOF na-agbakọ ngbanwe oge site na iji akara ebili mmiri square.

Ọgụgụ ọzọ:

Wikipedia. (nd). Oge ụgbọ elu. Ewepụtara nahttps://en.wikipedia.org/wiki/Time_of_flight
Otu òkè nke Sony Semiconductor Solutions Group. (nd). ToF (Oge ụgbọ elu) | Nkà na ụzụ nkịtị nke ihe mmetụta onyonyo. Ewepụtara nahttps://www.sony-semicon.com/en/technologies/tof
Microsoft. (2021, Febụwarị 4). Okwu mmalite nke oge ụgbọ elu Microsoft (ToF) - Azure Depth Platform. Ewepụtara nahttps://devblogs.microsoft.com/azure-depth-platform/intro-to-microsoft-time-of-flight-tof
ESCATEC. (2023, Maachị 2). Oge nke ụgbọ elu (TOF) sensọ: Nleba anya dị omimi na ngwa. Ewepụtara nahttps://www.escatec.com/news/time-of-flight-tof-sensors-an-in-depth-overview-and-applications

Site na ibe weebụhttps://faster-than-light.net/TOFSystem_C1/

Onye edemede: Chao Guang

Nkwuputa:

Anyị na-ekwupụta ugbu a na a na-anakọta ụfọdụ onyonyo egosiri na webụsaịtị anyị site na ịntanetị na Wikipedia, n'ebumnobi ịkwalite agụmakwụkwọ na ikesa ozi. Anyị na-asọpụrụ ikike ikike ọgụgụ isi nke ndị okike niile. Ebubeghi iji onyonyo ndị a maka uru azụmaahịa.

Ọ bụrụ na ị kwenyere na nke ọ bụla n'ime ọdịnaya ejiri mebie ikike nwebiisinka, biko kpọtụrụ anyị. Anyị dị njikere ime ihe kwesịrị ekwesị, gụnyere iwepu onyonyo ma ọ bụ ịnye njiri mara nke ọma, iji hụ na nnabata na iwu na ụkpụrụ ikike ọgụgụ isi. Ebumnuche anyị bụ idowe usoro ikpo okwu bara ụba na ọdịnaya, ziri ezi, ma kwanyere ikike ikike ọgụgụ isi nke ndị ọzọ ùgwù.

Biko kpọtụrụ anyị na adreesị ozi-e a:sales@lumispot.cn. Anyị na-ekwe nkwa ime ihe ozugbo na ịnata ọkwa ọ bụla ma kwe nkwa nkwado 100% iji dozie nsogbu ọ bụla.