IoT tsis muaj roj teeb ua tsaug rau micropower transmitter

Lub subset tsim los ntawm cov kws tshawb fawb ntawm University of California, San Diego, Tebchaws Asmeskas, tso cai rau Internet ntawm Yam (IoT) cov cuab yeej sib txuas lus nrog Wi-nkaus tes hauj lwm ntawm tsib txhiab lub zog tsawg dua li Wi-Fi transmitters tam sim no. Raws li kev ntsuas tau nthuav tawm ntawm lub rooj sib tham thoob ntiaj teb tsis ntev los no ntawm Semiconductor Circuits ISSCC 2020, nws tsuas yog siv 28 microwatts (millionths ntawm ib watt).

Nrog lub hwj chim ntawd, nws tuaj yeem hloov cov ntaub ntawv ntawm ob megabits ib ob (ceev txaus rau kwj suab paj nruag thiab YouTube yeeb yaj duab feem ntau) mus txog 21 meters deb.

Cov khoom lag luam niaj hnub Wi-Fi muaj peev xwm feem ntau siv ntau pua milliwatts (phav txhiab watt) los txuas IoT cov khoom siv rau Wi-nkaus transmitters. Yog li ntawd, qhov xav tau ntawm cov roj teeb, cov roj teeb uas siv tau, nquag them lossis lwm yam khoom siv hluav taws xob sab nraud (saib:) Ib hom tshiab ntawm cov cuab yeej tso cai rau koj los txuas cov khoom siv tsis muaj hluav taws xob sab nraud, xws li cov khoom siv hluav taws xob, thiab lwm yam.

Wi-Fi module ua haujlwm nrog lub zog me me, xa cov ntaub ntawv siv cov txheej txheem hu ua backscatter. Nws rub tawm Wi-Fi cov ntaub ntawv los ntawm lub cuab yeej nyob ze (xws li lub xov tooj smartphone) lossis qhov chaw nkag (AP), hloov kho thiab nkag mus rau nws, thiab tom qab ntawd xa nws hla lwm Wi-Fi channel mus rau lwm lub cuab yeej lossis nkag mus.

Qhov no tau ua tiav los ntawm embedding ib feem nyob rau hauv lub ntaus ntawv hu ua ib tug wake-up receiver, uas "tsim" lub Wi-Fi network nkaus xwb thaum lub sij hawm kis tau tus mob, thiab cov so ntawm lub sij hawm yuav nyob twj ywm nyob rau hauv ib tug power-saving pw tsaug zog hom siv tsawg npaum li cas. 3 microwatts zog.

Tau qhov twg los: www.orissapost.com