Koj qhov Ad Margin tau noj los ntawm koj daim nqi hluav taws xob
Ib qho kev nyuaj siab yog thawj zaug tau muab los ntawm digital- tawm- ntawm-tus neeg ua haujlwm hauv tsev (DOOH) network: kev siv hluav taws xob txhua xyoo mus txog 175,000 kWh rau 120-square-meter sab nraum zoov LED zaub screen ua haujlwm 18 teev hauv ib hnub ntawm 80% qhov siab tshaj plaws. Qhov ntawd tuaj txog ntau dua $ 26,000 ib xyoos ib zaug ntawm kev lag luam tus nqi ntawm $ 0.15 / kWh. Qhov ntawd yog ib nrab lab daus las hauv kev siv hluav taws xob txhua xyoo rau lub nroog thoob plaws lub network ntawm nees nkaum cov ntxaij vab tshaus, feem ntau tshaj cov nqi xauj tsev lossis txawm tias cov peev txheej tsim kho.
Txawm li cas los xij, cov ntxaij vab tshaus uas dhau los siv hluav taws xob ntau los ntawm kev tsim hluav taws xob pov tseg. Thermal dissipation ua rau cov pa 5V fais fab mov poob 15-20% ntawm lawv cov tswv yim zog. Nyob rau hauv lub voj voog vicious, cua sov ua rau cov kiv cua txias ua hauj lwm nyuaj thiab siv zog ntau dua. Cov neeg ua haujlwm yuav tsum txiav txim siab ua rau lub siab tsis zoo los tuav lub vijtsam ci thiab saib cov txiaj ntsig evaporate lossis khiav lub vijtsam dimmer kom txo tau cov nqi (thiab poob nqi ad).
LED Energy Efficiency's Plaub Foundations
Ua tsaug, kev lag luam tau tsim plaub qhov kev daws teeb meem tshwj xeeb uas txo kev siv 30% mus rau 50% yam tsis tau txo qis qhov pom kev ci ntsa iab.
1. Ultra-Low 4.2V Supply + PWM-SS Chips
Pa LED modules xav tau 5V ua haujlwm. Cov qauv tsim niaj hnub siv PWM-SS (Pulse Width Modulation with Smart-Txuag) tsav tsheb sib txuas nrog 4.2V cov khoom siv hluav taws xob. Raws li kev xav, txo qis qhov voltage ntawm 5V mus rau 4.2V txo qis hluav taws xob pov tseg hauv cov tsav hluav taws xob ntau dua 30% txij li lub zog dissipation yog sib npaug rau cov square ntawm qhov voltage (P =} V² / R). Ib qho piv txwv tiag tiag hauv ntiaj teb yog 40,000 kWh, lossis yuav luag $ 5,000, uas Qiangli's 100��� Q2.5 Pro, uas khiav yim teev hauv ib hnub, txuag.
2. Common-Cathode Drive Design
Qhov no yog revolutionary. Tag nrho cov xim (R, G, thiab B) tau txais tib yam 5V cov khoom siv hauv ib qho kev sib koom ua ke -anode system. Ntsuab thiab xiav LEDs xav tau txog 3.8V, qhov liab LEDs tsuas xav tau txog 2.8V. Cias muab, qhov ntxiv 1.2-2.2V yog kub li kub. Cov kab hluav taws xob sib cais yog muab los ntawm cov cathode: 2.8V rau liab thiab 3.8V rau ntsuab / xiav. Los ntawm kev tshem tawm overvoltage pov tseg, qhov tseeb qhov sib piv ntawm qhov no ua rau kev txuag tam sim ntawm 20-25%. Muab piv rau cov qauv qub hauv tib chav kawm ci ci, Leiman's Thunder Z series siv qhov ua tiav-cathode thiab tshaj tawm txog 50% txo qis hauv lub zog.
3. Dub- tshuaj ntsuam standby thiab ntse voltage tswj
Kev ntsuas hluav taws xob ntse tam sim no yog ib qho ntawm cov khoom siv hluav taws xob siab - kawg. Lub hwj chim mov dynamically txo qhov tso zis voltage kom phim qhov txo tam sim no qhov yuav tsum tau thaum lub vijtsam pom cov khoom siv tsaus nti (xws li hmo ntuj lub nroog nrog cov xim dub siab). Txee lub hwj chim ntws tuaj yeem mus qis dua 2 watts thaum lub sijhawm tsaus ntuj - npo pw tsaug zog (piv txwv li, nruab nrab ntawm 2 txog 5 AM thaum cov ntsiab lus raug tshem tawm), uas yog qhov tsis txaus ntseeg piv rau 100-200W thaum lub sijhawm tsis ua haujlwm ntawm cov tshuab dhau los.
4. Tsis Siv Neeg Dimming ntawm Ambient Teeb
Qhov yooj yim tshaj plaws tab sis muaj txiaj ntsig mus kom ze. Lub kaw lus tswj tau txais cov ntaub ntawv ambient lub teeb los ntawm photosensor. Lub vijtsam ua haujlwm ntawm qhov ci ci thaum tav su (100,000 lux). Nws rov qab mus rau 60% thaum tsaus ntuj (10,000 lux). Nws poob rau 20-30% thaum ib tag hmo (500 lux). Vim tias hmo ntuj yog qhov tsaus ntuj, qhov dynamic dimming txo qhov nruab nrab txhua hnub siv los ntawm 40-50% nyob rau lub sijhawm 24-teev. Los ntawm kev txo qis kev ntxhov siab, nws kuj ua rau lub neej ntev ntawm LEDs.
Los ntawm "Energy Guzzler" mus rau "Eco-Champion" - ROI Kev Ntsuam Xyuas
Nov yog qhov kev sib piv siv tau rau tus qauv 100㎡ npo khiav 18 teev / hnub:
| Tshuab siv | Txhua xyoo kWh tau siv | Tus nqi txhua xyoo ($ 0.15 / kWh) | Lub sijhawm them rov qab (vs. legacy) |
|---|---|---|---|
| Txoj Cai 5V + Common-anode | 175,000 | $26,250 | Lub hauv paus |
| + 4.2V & PWM-SS | 132,000 | $19,800 | 1-1.5 xyoo |
| + Common-cathode (ntxiv-on) | 105,000 | $15,750 | 2-2.5 xyoo |
| + Auto-dimming & ntse standby | 78,000 | $11,700 | Hauv qab 1.5 xyoo (ua ke) |
Lub zog-ntau sab nraum zoov puv- xim LED zaub feem ntau raug nqi 10% txog 15% ntxiv rau pem hauv ntej. Txawm li cas los xij, tus nqi them rau nws tus kheej hauv 18-24 lub hlis nrog cov nyiaj khaws cia txhua xyoo ntau dua $ 14,000 ib qho screen. Qhov ntawd yog ntau tshaj $100,000 txuag tau tshaj kaum-xyoo lub sijhawm- cov nyiaj tau los ncaj qha mus rau kab hauv qab.
Sab nraum zoov LED Screen Zog yog dab tsi -Txuag Technology Entail?
Kev tsim kho tshiab hauv ob qho tib si kho vajtse thiab software suav nrog lub zog-txuag thev naus laus zis rau sab nraum zoov LED cov ntxaij vab tshaus. Kho vajtse- ntse, nws muaj tsawg- tsis kam PCB kab uas txo cov tooj liab poob, siab -kev ua haujlwm zoo synchronous rectification fais fab mov (uas hloov AC rau DC nrog ntau dua 92% kev ua haujlwm piv rau 80% rau cov laus dua), thiab ntau dua -cathode tsav tsheb sib txuas) rau txhua tus neeg siv hluav taws xob. Ntawm sab software, nws muaj cov ntsiab lus - paub txog kev tswj fais fab uas txo qis tam sim no thaum lub sijhawm tsaus ntuj video scenes thiab dynamic dimming algorithms uas hloov brightness raws li tiag tiag - lub sij hawm ambient teeb. Thaum sib xyaw ua ke, lawv txo qis kev siv hluav taws xob tag nrho thaum khaws cia qhov ci ntsa iab uas xav tau rau kev pom sab nraum zoov, hloov lub zog ib txwm muaj - tshaib plab nruab nrab mus rau ib qho pheej yig tshaj OOH tshaj tawm platforms.
Lub sij hawm ceeb toom: Anode yog lub davhlau ya nyob twg zoo, qhov cathode yog qhov tsis zoo. Tag nrho cov LEDs hauv ib qho -cathode qhia qhov tsis zoo ntawm lub davhlau ya nyob twg, ua kom muaj qhov zoo sib txawv rau txhua xim. Lawv txhua tus tau txais tib qhov hluav taws xob thiab sib faib cov davhlau ya nyob twg zoo hauv ib qho -anode. PWM-SS, lossis Pulse Width Modulation Smart-Txuag, yog ib lub nti uas txo qis zog los ntawm kev sib txawv ntawm lub sijhawm qhib / tawm ntawm LED tam sim no kom ua tiav xim qhov tob. Synchronous rectification yog ib txoj kev hloov dua siab tshiab ntawm lub zog uas txo cov cua sov thaum lub sij hawm hloov hluav taws xob los ntawm kev hloov qis -tsis kam MOSFETs rau diodes.
