Ngaba zonke izibane ezikhanyayo zine-UGR?

I-metric ebizwa ngokuba yi-UGR, okanye i-Unified Glare Rating, isetyenziselwa ukuvavanya ukuba kubi kangakanani ilitha elisuka kumthombo wokukhanya. Kuba i-UGR ihlala inxulunyaniswe nezibane ezisesikweni ezisetyenziswa kurhwebo kunye neesetingi zobuchwephesha apho ulawulo lomtha libalulekile, ayizizo zonke iintambo zokukhanya ezinalo bakala.

Imicu yokukhanya ayikwazanga ukuhamba kwisatifikethi esifanayo okanye iinkqubo zovavanyo njengezixhobo zokukhanyisa eziqhelekileyo, ngakumbi ukuba zenzelwe ukukhanyisa okanye ukuhombisa. Nangona kunjalo, abavelisi banokunika umlinganiso we-UGR okanye iinkcukacha malunga nolawulo lwe-glare ukuba umtya wokukhanya wenzelwe ukusetyenziswa kwindawo apho ilitha linokuba ngumba.

Kuyacetyiswa ukuba uphonononge iispekthi zemveliso okanye uthethe nomvelisi ukuba ukhangela umtya wokukhanya onemilinganiselo ethile ye-UGR.

Ekubeni i-UGR linani eligqitywe yimilinganiselo ethile, ukuvavanya i-Unified Glare Rating (UGR) yokukhanya kwe-LED strip ngokuqhelekileyo kubandakanya ukulandela inkqubo emiselweyo. Isishwankathelo seenkqubo ezifunekayo ukuvavanya i-UGR inikwe ngezantsi:

Qwalasela Imeko-bume:
Yenza uvavanyo kwindawo elawulwayo, njengegumbi elinoyilo olumiselweyo kunye nonyango lwangaphandle. Eminye imithombo yokukhanya enokuthi idibanise idatha akufanele ibe khona kwigumbi.
Izixhobo zokulinganisa:
Ukufumanisa ukuba ukukhanya okukhanyayo kunye neendawo ezijikelezileyo zikhanya kangakanani, sebenzisa imitha yokukhanya. Qinisekisa ukuba isilinganisi-manzi silinganisiwe kwaye sifanelekile kuluhlu lokuqaqamba ekufuneka ululinganise.
Misela amanqaku oMlinganiselo:
Misela iindawo zemilinganiselo. Isikhundla sombukeli (ngokubanzi inqanaba lamehlo) kunye neendawo zemithombo yokukhanya (izibane ze-strip ze-LED) zihlala zibandakanyiwe kule nto.
Bala iLuminance:
Ngokwembono yomkhi-mkhanyo, yenza umlinganiselo wokukhanya kwesibane se-LED kwii-engile ezahlukeneyo. Oku kuquka ukuthatha imilinganiselo yokukhanya kwii-engile ezibonisa ilitha elinokwenzeka kunye nokusuka ngqo kumthombo wokukhanya.

Bala i-UGR:
Sebenzisa ifomyula ye-UGR, ethathela ingqalelo amaxabiso okukhanya alinganisiweyo, ii-engile zemithombo yokukhanya ngokunxulumene nombonisi, kunye nemvelaphi yokukhanya. Ifomula yile ilandelayo:
[
UGR = 8 \cdot \log_{10} \ekhohlo( \frac{0.25 \cdot \sum_{i=1}^{n} L_i \cdot \Omega_i}{L_b} \ekunene)
]

Apho:

( L_i ) = ukukhanya komthombo wokukhanya (kumakhandlela ngemitha yesikwere)
( \ Omega_i ) = i-engile eqinileyo yomthombo wokukhanya (kwi-steradians)
( L_b ) = ukukhanya okungasemva (kumakhandlela ngemitha yesikwere)

Hlalutya iziphumo:
Kwiimeko ezininzi, ixabiso le-UGR elingaphantsi kwe-16 libonwa lamkelekile, nangona kunjalo ixabiso elingaphezulu kwe-19 lingabonisa ilitha elibukhali.
Iirekhodi:
Ukufumana ireferensi yexesha elizayo okanye iimfuno zokuthotyelwa, bhala yonke imilinganiselo, ukubala, kunye neemeko zovavanyo.
Ukuthetha nengcali yokukhanyisa okanye inkampani egxile kuyilo lokukhanyisa kunye nokulinganisa kunokuba luncedo ukuba awuqhelananga nenkqubo yokuvavanya okanye uswele izixhobo ezifunekayo.

Sinomgca omtsha onokuchasa ilitha, ncedaQhagamshelana nathiukuba ufuna ukwazi ngakumbi malunga neanti-glare neon strip.

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