Izinzwa zobushushu ziye zafumana indima ephambili kwi-revolution ye-electronics yanamhlanje., ukuvumela yonke into ukusuka ekufumaneni ubushushu obungaqhagamshelwanga ukuya kwisizukulwana semifanekiso echanekileyo ye-thermal. Phakathi kwazo zonke iimodeli ezikhoyo, i Inzwa ye-thermal ye-MLX90640 IR Ibalasele ngokuchaneka kwayo okukhulu, ubungakanani bayo obubambeneyo kunye nokuguquguquka kwayo ukudibanisa kwiiprojekthi ezininzi zobuchwephesha kunye ne-DIY.
Kweli nqaku siza kukuxelela Yonke into ofuna ukuyazi malunga neMLX90640: indlela esebenza ngayo, ezona mpawu ziphambili zobugcisa, usetyenziso, kwaye kutheni iye yaba sisalathiso sabo bathanda izinto zombane kunye neenkampani zoshishino. Ukuba ujonge ulwazi olucacileyo, oluneenkcukacha, kunye noluluncedo, qhubeka ufunda kuba sizakucacisa ngaphandle kwejargon yobuchwephesha obungeyomfuneko kodwa ngokuchaneka nobunzulu.
Yintoni inzwa ye-thermal ye-MLX90640 IR?
El MLX90640 Yinto yoluvo lwe-infrared (IR) yoluhlu lwe-thermal imaging Yenziwe nguMelexis. Ngokungafaniyo nezinzwa zobushushu boqhagamshelwano lwemveli, esi sixhobo si ekwaziyo ukulinganisa amaqondo obushushu ekude kwaye ngaphandle kwesidingo sokudibana nemizimba okanye izinto. Isebenzisa uluhlu lwe 32 x 24 pixels ekuvumela ukuba ubambe a umfanekiso we-thermal yommandla okanye umphezulu okwibala lakho lombono.
Ifomathi yayo edibeneyo kunye nayo indleko ephantsi iyenza ibe lolona khetho lufanelekileyo kwiintlobo ngeentlobo zezicelo, ukusuka kulwakhiwo lwezifundo ezishushu ukuya kwiinkqubo zokhuseleko, i-automation yasekhaya, ukujonga ishishini, kunye nesayensi yabemi okanye iiprojekthi zophando.
Ngokuthembela kwitekhnoloji ye-infrared, i-MLX90640 inako Fumana kwaye wenze imephu yokuhanjiswa kwe-thermal ngexesha langempela, ivelisa imifanekiso apho ipixel nganye ihambelana nobushushu obahlukileyo. Oku kunceda a ukubonwa okucacileyo kweegradient ze-thermal ekhoyo kwindawo yexhwayelo.
Iimpawu eziphambili zobugcisa zeMLX90640
Iimpawu zobugcisa yenye yezinto ezikhangayo zale sensor. I-MLX90640 ine-a 32 x 24 pixel IR matrix, oko kukuthi, amanqaku angama-768 okulinganisa ubushushu asasazeka phezu kwendawo exande. Esi sigqibo, nangona sithozamile xa sithelekiswa neekhamera zokujonga i-thermal zexabiso eliphezulu, singaphezulu kokwaneleyo kuhlolo oluninzi, uhlalutyo, kunye nezicelo zeprototyping.
Phakathi kwezinto zayo eziphawulekayo unokufumana:
- Indawo yokujonga (FOV): Kukho iinguqulelo ezinee-angularities ezahlukeneyo, eyona modeli ixhaphakileyo 55°y 110° indawo yokujonga. I-FOV ebanzi ikuvumela ukuba ugqume iindawo ezinkulu ngaxeshanye.
- Ubuzaza bobushushu (NETD): I-MLX90640 iqhayisa a ingxolo elinganayo lobushushu umahluko nje 0,1 K RMS kwi 1 Hz izinga lokuhlaziyaOku kuqinisekisa ufundo oluchanekileyo kakhulu lobushushu.
- Ujongano lonxibelelwano: Idibanisa ikakhulu ngojongano I2C, exhaswa ngokubanzi ngamabhodi afana ne-Arduino, i-Raspberry Pi okanye i-ESP32. Uluvo luqwalaselwe ngaphakathi Imowudi ekhawulezayo, exhasa ukuya kuthi ga kwireyithi yedatha ye-1MHz.
- Isantya sohlaziyo: Iprogrammeable phakathi kwe-0,5 Hz ukuya kwi-64 Hz (ilingana ne-0,25 ukuya kwi-32 FPS), ikuvumela ukuba ulungelelanise ireyithi yesampuli ngokweemfuno zeprojekthi.
- Ukuhambelana nombane: Yamkela amandla ombane osebenzayo we-3.3V kunye ne-5V enkosi kwitransducer yombane edibeneyo. Oku kuyenza ilungele amaqonga ahlukeneyo ophuhliso.
- Izixhobo: Ezinye iinguqulelo ziza zixhotyiswe nazo iintambo eziyekiweyo kwiziqhagamshelo zaseDuPont zabasetyhini ukuququzelela uqhagamshelwano.
Ukongezelela, i-MLX90640 ifumaneka kwiifomathi ezahlukeneyo, ukusuka kwiimodyuli ezilungele ukusetyenziswa ukuya kwiinguqu ze-barebone zokudibanisa ngokuthe ngqo kwiibhodi ze-elektroniki ezinzima.
Isebenza njani inzwa ye-thermal ye-MLX90640 IR?
Ukusebenza kolu hlobo lwabenzi boluvo kusekelwe kwi ukubanjwa kwemitha ye-infrared ekhutshwa ngokwemvelo yimizimba. Nayiphi na into eneqondo lobushushu elingaphezu kweqanda ngokupheleleyo ikhupha imitha ye-infrared, kwaye okukhona ishushu, kokukhona le mitha iya kuba namandla. I-MLX90640 isebenzisa a microbolometer infrared detector uluhlu ezibamba ezi zinto zikhutshwayo kwaye ziziguqule zibe ziimpawu zombane, ezicutshungulwa zibe yidatha yedijithali ukumela amaxabiso obushushu.
Iphikseli nganye kuluhlu ilinganisa ukukhanya kwemitha yendawo encinci yendawo yokujonga. Isivamvo soluvo siguqula le milinganiselo ibe amaxabiso obushushu bomphezulu usebenzisa i-algorithms yangaphakathi. Ngaloo ndlela, umphumo ngu idatha matrix enokutolikwa ngokubonakalayo njengomfanekiso oshushu onemibala.
Lo buchule bokuvelisa imifanekiso eshushu iququzelela kakhulu imisebenzi efana ukubhaqwa kwendawo eshushu (iindawo ezixhaphakileyo), i ukulandelela iintshukumo zabantu okanye zezilwanyana, la ukubeka esweni iinkqubo zamashishini okanye nokubekw' esweni kweemeko-bume ezibuthathaka.
Usetyenziso oluphambili lweMLX90640
El Inzwa ye-thermal ye-MLX90640 IR Ifumene indawo yayo kubuninzi bamacandelo ngenxa yokuguquguquka kwayo kunye nokulula kokudibanisa.Apha ngezantsi zezinye zezona app zibalulekileyo:
- Umlinganiselo wobushushu ongadibaniyo kunye nokujongwa kwenkqubo: Ilungele iinkqubo apho kungenzekiyo okanye kulungeleyo ukubeka izivamvo ezibonakalayo kwizinto, ezinje ngamabhanti okuhambisa, ii-oveni, okanye oomatshini boshishino.
- I-Thermography kunye neekhamera zokujonga i-thermal: I-matrix yayo ivumela ukwakha izixhobo eziphathekayo eyenza imifanekiso eshushu ngexesha lokwenyani, iluncedo zombini kwicandelo lombane kunye nolwakhiwo kunye nokulungiswa, ukusebenza kakuhle kwamandla, kunye novavanyo.
- Ukhuseleko kunye nezixhobo zokulawula ukufikelela: I-MLX90640 idla ngokufumaneka kwiikhamera zokhuseleko ezihlakaniphile, iinkqubo zokulawula umthamo, okanye ukucupha i-perimeter, njengoko inokubona ubukho kunye nokunyakaza nokuba sekumnyama.
- I-automation yasekhaya kunye ne-smart automation: Amakhaya kunye nezakhiwo ezilumkileyo ziya ziguqukela kuzo iinkqubo zokubeka iliso kokusingqongileyo ngokusekelwe thermography ukwandisa ukusetyenziswa kwamandla, ukubona ukuvuza kobushushu okanye ukulungelelanisa ngokuzenzekelayo isimo somoya.
- Ulawulo lomgangatho kunye nokugcinwa kwangaphambili: Kwiifektri kunye nezixhobo ezinkulu, ukukwazi ukubona ukufudumala okanye ukungahambi kakuhle kwe-thermal kunokuthintela ukuphuka kunye nokwandisa iinkqubo zokuvelisa.
- Amayeza kunye nempilo: Kukho imodeli ephathekayo ye-MLX90640 sensor esebenza njengethemometha ye-infrared okanye njengeekhamera zokuxilonga ukujonga umkhuhlane okanye ukudumba, ngakumbi kuluncedo kwi-triage kunye neseto zokhathalelo olukhawulezayo.
- Iirobhothi kunye neeprojekthi zemfundo: Ngenxa yokuhambelana kwayo namaqonga afana Arduino, Raspberry Pi, ESP32 okanye STM32, lukhetho oludumileyo lwabenzi, ootitshala, kunye nabafundi abajonge ukuzama ukubona i-thermal.
Njengoko ubona, ukuguquguquka kwesi sivamvo kwenza ukuba luncedo kuyo yomibini imisebenzi yobuchwephesha kunye neeprojekthi zokuzonwabisa kunye nokufunda.
Iinguqulelo zorhwebo, iimodyuli kunye neekhithi ezikhoyo
Ukuthandwa kweMLX90640 kuye kwakhokelela ekuveleni kweemodyuli ezahlukeneyo zeplagi kunye nokudlala. Ungayifumana le sensor idityaniswe kwiikhamera eziphathwayo eziphathwayo, iithemometha ze-infrared zobuchwephesha, okanye nokuba iibhodi zokwandisa kwiinkqubo ezifana neGrove, iPimoroni okanye i-Adafruit.
Iikiti zihlala zibandakanya inzwa esele ifakwe kwibhodi encinci ye-elektroniki, kunye neziphumo kwifomathi smith okanye efanayo. Oku kuvumela a uxhulumaniso olukhawulezayo nolungathengiswanga ngebhodi yakho yomama oyithandayo, yenza uphuhliso kunye nokulinga lula.
Phakathi kwezona modeli zibalaseleyo ezikhoyo kwiivenkile ezikhethekileyo ungafumana iimodyuli ezineelensi ezahlukeneyo (55 ° okanye 110 ° FOV) kunye neenguqulelo ezilungiselelwe ukuququzelela ukudityaniswa kwazo kwiiprojekthi zemfundo okanye zophando.
Kwabaninzi abathengisi be-intanethi, njenge-Amazon, i-Electronilab, i-Funduino Shop, kunye nabanye, i-MLX90640 inikezelwa ngokwayo kwaye njengenxalenye yezisombululo ezipheleleyo, ezifana neekhamera ezinxibekayo kunye neziboniso ze-LCD, iimodyuli ze-USB, kunye nezixhobo ezixhunyiwe kwi-IoT okanye i-automation yasekhaya.
Iqonga kunye nokuhambelana kwe-microcontroller
Enye yamanqaku anamandla ale sensor yeyo ukuhambelana okubanzi kunye namaqonga ophuhliso. I I-MLX90640 isebenza ngokugqibeleleyo kunye neArduino, iRaspberry Pi, i-ESP32, i-STM32 kunye nezinye iibhodi ezifanayo.Oku kwenziwa ukuba kwenzeke ngokusetyenziswa kojongano oluqhelekileyo lwe-I2C kunye nokufumaneka kwamathala eencwadi esoftware evulelekileyo.
Umzekelo, ukuba uya kuyisebenzisa kunye Raspberry Pi, kukho amathala eencwadi kwiPython ekuvumela ukuba ufunde i-matrix yobushushu kwaye uyiguqule ibe yimifanekiso ngokulula. Ngokufanayo, kunye Arduino o ESP32 Ungathumela ikhowudi kwiC / C ++ ukubamba, inkqubo kwaye ubonise idatha kwisikrini okanye uyithumele efini.
Inyani yokuba umenzi woluvo wamkela zombini 3.3V njengoko 5V kuphelisa uninzi lwemiba yokuhambelana kombane, yenze kube lula ukuyisebenzisa nakubaqalayo bombane.
Izinto ezilungileyo ngaphezu kwezinye izisombululo ze-imaging thermal
Kukho iindlela ezininzi kwiimarike zokubona ubushushu kunye nokufumana imifanekiso eshushu, kodwa MLX90640 Igqame ngenxa yezizathu ezithile ezithe ngqo:
- Ixabiso eliphantsi: Azikho zininzi iikhamera zokucinga ezishushu kolu luhlu lwamaxabiso ezibonelela ngematrix exineneyo yamachaphaza kunye nokusebenza okufanayo.
- Ukulula kokudibanisa: Amaxwebhu ayo kunye ne-hardware / ukuhambelana kwesoftware kuyenza isebenziseka lula nakwabaqalayo.
- Ukubambezeleka okuphantsi kunye nempendulo ekhawulezayo: Ithuba lokulungelelanisa i izinga lokuhlaziya (ukuya kuthi ga kwi-64Hz) yenza ukuba isebenze kwizicelo zexesha lokwenyani.
- Ukungafani: Kuzo zombini izisombululo ezisisigxina kunye neselula, ukubeka iliso, ukhathalelo lwezempilo, uphando, njl.
Ngaphezu koko, into yokuba inokufumaneka kwiivenkile ezininzi kunye neemodyuli zendalo yonke inzuzo enkulu xa kuthelekiswa nezisombululo zobunikazi okanye okunzima ukufikelela kuzo.
Iingqwalasela zabucala kunye nokusetyenziswa kweekuki kwiivenkile ze-intanethi
Umdla oye wafunyanwa xa kuhlalutywa iiphothali ezahlukeneyo ubukho bezaziso malunga neekuki kunye nokhetho lwabucala kwiindawo zentengiso ezinkulu njengeAmazon. Xa uthenga iimodyuli zeMLX90640 okanye ezinye izinto ze-elektroniki kwi-intanethi, iikuki zihlala zisetyenziselwa phucula amava omsebenzisi ezifana nokwenza intengiso ibe yeyakho okanye ukuqokelela ulwazi malunga nokuphuculwa kwenkonzo okunokwenzeka.
Umzekelo, kwiAmazon, ngokwamkela iikuki kunye neenketho zentengiso, unika imvume kusetyenziswa idatha yobuqu kunye nokukhangela hayi ukukubonisa iintengiso ezifanelekileyo kuphela, kodwa nokuphucula iimveliso kunye namava kwixesha elizayo. Kubalulekile ukwazi ukuba uzithenga phi izinzwa zakho kwaye ujonge kwakhona imigaqo-nkqubo yabucala ukuqonda ukuba yeyiphi idata abanokuthi bayiqokelele ngawe.
