Hauv -Kev Ntsuas Qhov tob ntawm Dimming Technologies: DALI Dimming (Digital Addressable Lighting Interface)

DALI (Digital Addressable Lighting Interface) sawv cev rau qhov kev vam meej hauv kev siv tshuab dimming, muab tag nrho cov digital, bidirectional kev sib txuas lus raws tu qauv raws li IEC 62386. Tsis zoo li cov tshuab analog, DALI tso cai rau txhua lub luminaire muaj qhov chaw nyob tshwj xeeb, ua kom muaj kev ywj pheej ntawm txhua lub teeb pom kev zoo ntawm tib lub tsheb npav ob-xaim. Cov lus txib raug xa mus rau digitally siv lub Manchester-encoded teeb liab ntawm 1,200 baud, txhawb nqa txog 64 cov khoom siv rau ib kab DALI (nrog nthuav dav ntawm lub rooj vag). Cov qauv digital no ua rau muaj kev ua haujlwm siab tshaj plaws xws li tus neeg dimming, pab pawg tswj hwm, scene presets, xim-tuning (nrog DALI-2 thiab D4i txuas ntxiv), thiab cov lus qhia txog lub sijhawm tiag tiag - suav nrog teeb tsis ua haujlwm, tsav tsheb yuam kev, thiab cov ntaub ntawv siv hluav taws xob. Qhov yooj yim ntawm DALI yog qhov tshwj xeeb tshaj yog muaj txiaj ntsig hauv kev lag luam thiab chaw ua haujlwm qhov chaw teeb pom kev zoo yuav tsum tau hloov kho kom zoo. Nyob rau hauv ib lub chaw ua haujlwm niaj hnub qhib, piv txwv li, DALI-tswj luminaires tuaj yeem ua pawg los ntawm cov chaw ua haujlwm, nrog rau nruab hnub nrig sensors kho cov zis nyob ze qhov rais thaum tswj cov qib siab dua sab hauv. Ib qho kev tswj vaj huam sib luag tuaj yeem rov qab "kev nthuav qhia" hom (dimming kab pem hauv ntej, ci ntsa iab ntawm qhov screen) lossis "tu" hom (tag nrho ci ntsa iab) ntawm qhov kov ntawm lub pob. Tsis tas li ntawd, qhov xwm txheej bidirectional ua kom yooj yim rau kev ua haujlwm thiab kev saib xyuas: tus neeg saib xyuas chaw tuaj yeem nug lub tsheb npav DALI txhawm rau txheeb xyuas lub teeb tsis raug yam tsis tau kuaj xyuas txhua qhov khoom siv. Lub ntsiab downside yog tus nqi - DALI tsav tsheb thiab cov maub los yog kim dua lawv cov analog lossis PWM counterparts, thiab lub kaw lus yuav tsum muaj kev txawj ntse. Txawm li cas los xij, rau cov haujlwm xav tau kev tswj xyuas kom zoo, kev tshaj tawm lub zog, thiab kev sib koom ua ke yav tom ntej nrog kev tswj hwm lub tsev, DALI yog tus qauv kev lag luam xaiv.