Tau ntau xyoo, cov kws tshawb fawb tau tawm tsam nrhiav txoj hauv kev tshiab los khaws cov xov tooj cua tsis zoo los ntawm ib puag ncig kom muaj zog rau cov khoom siv me me. Txawm li cas los xij, txog tam sim no, lub hauv paus ntawm cov teeb liab no tsis tau nthuav dav li lub wireless network (Wi-Fi). Tsis ntev los no, pab pawg tshawb fawb los ntawm National University of Singapore (NUS) tau tshaj tawm cov nti tshiab uas lawv tau tsim los rau lub zog LEDs thiab lwm yam khoom siv hluav taws xob me me / sensors.
Tus thawj coj tshawb fawb Prof. Yang Hyunsoo (sab laug) thiab thawj tus sau Dr. Raghav Sharma
Kev sau xov tooj cua hluav taws xob hauv ib puag ncig thiab tom qab ntawd hloov nws mus rau lub zog muaj txiaj ntsig tau yog qhov nyuaj rau ntau xyoo.
The good news is that scientists from the National University of Singapore and Tohoku University in Japan have developed what they call a "self-torque oscillator" (STO).
Ib chav kawm tshiab ntawm cov khoom siv me me, lawv muaj peev xwm tsim cov microwaves, tab sis txog tam sim no lub zog tso zis tau qis qis. Raws li qhov no, pab pawg tshawb fawb tau los nrog cov kev daws teeb meem tshiab los koom ua ke ntau STOs ntawm ib nti kom nce lub zog tso zis.
Txhawm rau ua tiav qhov no, txawm li cas los xij, pab pawg tshawb fawb tau ua haujlwm hnyav los tsim thiab sim cov qauv tsim kom zoo los daws cov teeb meem xws li qhov sib nrug thiab qis - zaus teb. Txoj kev npaj ua qauv xa tawm zaum kawg suav nrog yim STOs txuas nrog hauv koob.
Cov array absorbs 2.4GHz xov tooj cua nthwv dej uas tsim los ntawm Wi-Fi teeb liab thiab hloov mus rau DC voltage signals. Tom qab dhau mus rau lub capacitor, nws tuaj yeem siv rau 1.6V LED.
Tom qab them lub capacitor rau 5 vib nas this, LED yuav nyob twj ywm rau ib feeb txawm tias lub zog sab nraud raug txiav tawm.
"We live in a world surrounded by Wi-Fi signals, but when we're not using them to access the internet, they're inactive, wasting energy," said study author Professor Yang Hyunsoo.
Cov kev tshawb fawb tshiab yog thawj kauj ruam hauv kev hloov pauv uas yooj yim muaj 2.4GHz xov tooj cua tsis muaj zog yuav dhau los ua lub zog ntsuab los txo cov roj teeb ntawm cov khoom siv hluav taws xob uas peb siv tsis tu ncua.
Nyob rau hauv txoj kev no, qee qhov IoT tuaj yeem siv hluav taws xob siv xov tooj cua. Nrog rau cov npe nrov ntawm cov tsev ntse thiab lub nroog ntse, qhov kev tshawb fawb no yuav siv tau zoo hauv cov tshuab xws li kev sib txuas lus, suav, thiab neuromorphism.
Pab pawg tshawb fawb yog tam sim no ua haujlwm kom nce tus naj npawb ntawm stos hauv cov khoom siv hluav taws xob, thiab yog siv rau fais fab cuab yeej thiab cov sensors.
Cov ntsiab lus ntawm kev tshawb fawb tau luam tawm nyob rau hauv qhov teeb meem tsis ntev los no ntawm phau ntawv Journal Nature Communications.
The original title is "Electrically connected spin-torque oscillators array for 2.4?GHz WiFi band transmission and energy harvesting".
