iindaba

Imodyuli yokuSkena yeBhakhowudi ikwabizwa ngokuba yiModyuli yokuSkena ngeBhakhowudi, iNjini yokuSkena yeBhakhowudi, ngesiNgesi (iNjini yokuSkena yeBhakhowudi okanye iModyuli yokuSkena yeBhakhowudi). Yinto engundoqo yokuchonga icandelo elisetyenziswa kakhulu kwinkalo yokuchonga ngokuzenzekelayo. Lelinye lamacandelo aphambili kuphuhliso lwesibini lweskena sebhakhowudi. Inomsebenzi wokuskena opheleleyo nozimeleyo webhakhowudi kunye ne-decoding, kwaye inokubhala imisebenzi eyahlukeneyo yesicelo soshishino njengoko kufuneka. Inobukhulu obuncinci kunye nokudibanisa okuphezulu, kwaye inokufakwa ngokulula kwiifowuni eziphathwayo, iikhomputha zethebhulethi, iiprinta, izixhobo zendibano, izixhobo zonyango, kunye nezinye izixhobo kuzo zonke iinkalo zobomi. Kwinkqubo yophuhliso, ishishini lemodyuli yokuskena ibhakhowudi kumazwe angaphandle kuselithuba, kwaye itekhnoloji ikhulile. Ezona zinkulu zibandakanya i-Honeywell, i-Motorola, iSimboli, njl.

I-1: Ukuhlelwa Imodyuli yokuskena ikhowudi yebhakhowudi inokwahlulwa ibe yimodyuli yekhowudi enye-dimensional kunye nemodyuli yekhowudi ene-dimensional ngokufana nokuskena, kwaye inokwahlulwa ibe yimodyuli yelaser kunye nemodyuli yokukhanya okubomvu ngokomthombo wokukhanya. Umahluko phakathi kwemodyuli yelaser kunye nemodyuli yokukhanya okubomvu Umgaqo wemodyuli yokuskena yelaser kukuba isixhobo selaser yangaphakathi sivelisa indawo yomthombo wokukhanya kwelaser, sibetha ishidi elibonakalisayo ngesixhobo sokwakheka komatshini, emva koko sixhomekeke kwimodyuli yokungcangcazela ukujingisela indawo yelaser. ibe kumgca welaser kwaye ikhazimle kwibhakhowudi, kwaye emva koko uyichaze ngeAD. Umqondiso wedijithali.

I-2: Iimodyuli zokuskena ukukhanya okubomvu ngokuqhelekileyo zisebenzisa imithombo yokukhanya ye-LED ekhupha ukukhanya kwe-diode, ithembele kwizinto ze-CCD ze-photosensitive, kwaye emva koko ziguqule ngezibonakaliso ze-photoelectric. Uninzi lweemodyuli zokuskena i-laser zixhomekeke ekukhupheni iglu ukuze kulungiswe isixhobo soomatshini, ke sihlala sonakaliswa lula xa sishukuma, kwaye isiqwenga se-pendulum siyawa, ngoko sinokubona rhoqo ukuba umthombo wokukhanya oskenwe yimipu ye-laser uba linqaku. emva kokuwa. , okukhokelela ekusebenzeni kwakhona okuphezulu. Akukho sakhiwo somatshini phakathi kwemodyuli yokuskena ukukhanya okubomvu, ngoko ke ukuchasana nokulahla akunakuthelekiswa ne-laser, ngoko ke ukuzinza kungcono, kwaye izinga lokulungiswa kwemodyuli yokuskena ukukhanya okubomvu kuphantsi kakhulu kune-laser scanning. imodyuli.

I-3: Ukusukela kumgaqo we-laser kunye nokukhanya okubomvu: I-Laser ibhekisa kukukhanya okunamandla avuselelweyo emitha yemitha kunye nokuhambelana okuhle, kwaye ngoku uninzi lwesibane esibomvu sikhutshwa zii-LEDs. Isibane esibomvu asilohlobo lwe-infrared esiluthethayo. I-infrared echazwe yifiziksi yimitha ezenzekelayo yezinto ezinobushushu. amaza ombane, angabonakaliyo. I-infrared ibandakanya konke ukukhanya okunobude obungaphezulu kunokukhanya okubomvu, ngelixa i-laser ibhekisa kukukhanya okunobude obuthile. Ezi zimbini azinanxibelelwano oluyimfuneko kwaye azikho kwintsimi efanayo. I-Laser yimitha yemitha eveliswa kukwandiswa kokukhutshwa okuvuselelweyo. I-infrared yinxalenye ye-spectrum ene-frequency ephantsi kunye ne-wavelength enkulu engenakubonwa ngeso lenyama. Ubude bobude buvela kwi-0.76 ukuya kwi-400 microns. Ukungena kunye nokuchasana nokuphazamiseka kokukhanya kubi ngakumbi kune-laser, ngoko i-laser yangaphandle ingcono kunokukhanya okubomvu phantsi kokukhanya okunamandla.