Author: 梧桐
Raws li Bluetooth SIG, Bluetooth version 5.4 tau raug tso tawm, nqa tus qauv tshiab rau cov nqi hluav taws xob.Nws tau nkag siab tias qhov hloov tshiab ntawm kev siv thev naus laus zis, ntawm ib sab, tus nqi tag hauv ib lub network tuaj yeem nthuav dav mus rau 32640, ntawm qhov tod tes, lub rooj vag tuaj yeem paub txog ob txoj kev sib txuas lus nrog tus nqi tag.
Cov xov xwm tseem ua rau tib neeg xav paub txog ob peb lo lus nug: Dab tsi yog qhov kev tsim kho tshiab hauv Bluetooth tshiab?Dab tsi yog qhov cuam tshuam rau daim ntawv thov ntawm cov khoom siv hluav taws xob?Nws puas yuav hloov cov qauv kev lag luam uas twb muaj lawm?Tom ntej no, daim ntawv no yuav tham txog cov teeb meem saum toj no, yav tom ntej txoj kev loj hlob ntawm cov nqi hluav taws xob.
Ntxiv dua thiab, Paub Txog Tus Nqi Hluav Taws Xob
Cov nqi hluav taws xob hluav taws xob, ib qho LCD thiab cov ntawv hluav taws xob cov khoom siv nrog kev ua haujlwm ntawm kev xa thiab txais cov ntaub ntawv, los ntawm kev sib txuas lus wireless kom ua tiav cov ntaub ntawv hloov pauv.Vim tias nws tuaj yeem hloov pauv tus nqi ib txwm muaj, ua ke nrog kev siv hluav taws xob tsawg (tus number case screen hluav taws xob tus nqi nrog 2 lub pob roj teeb tuaj yeem ua tiav ntau dua 5 xyoos ntawm kev ua siab ntev), nws tau nyiam los ntawm feem ntau ntawm cov khw muag khoom lag luam.Tam sim no, nws tau siv dav hauv kev lag luam hauv tsev thiab txawv teb chaws muaj npe nrov hauv khw muag khoom lag luam xws li Wal-Mart, Yonghui, Hema Fresh, Mi tsev thiab lwm yam.
Thiab tus nqi hluav taws xob tsis yog ib daim ntawv xwb, tab sis tag nrho cov kab ke tom qab nws.Feem ntau hais lus, lub tshuab hluav taws xob nqi hluav taws xob suav nrog plaub ntu: hluav taws xob nqi hluav taws xob (ESL), chaw nres tsheb wireless (ESLAP), hluav taws xob nqi hluav taws xob SaaS system thiab handheld terminal (PDA).
Lub hauv paus ntsiab lus ntawm kev khiav haujlwm yog: synchronize cov khoom muag thiab cov ntaub ntawv nqi ntawm SaaS huab platform, thiab xa cov ntaub ntawv mus rau tus nqi hluav taws xob los ntawm ESL chaw nres tsheb.Tom qab tau txais cov ntaub ntawv, tus nqi tag tuaj yeem tso saib cov ntaub ntawv tseem ceeb xws li lub npe, nqe, keeb kwm thiab cov lus qhia hauv lub sijhawm.Ib yam li ntawd, cov ntaub ntawv khoom lag luam kuj tuaj yeem hloov pauv offline los ntawm kev tshuaj xyuas cov khoom lag luam los ntawm lub xov tooj ntawm tes PDA.
Ntawm lawv, kev sib kis ntawm cov ntaub ntawv yog nyob ntawm kev sib txuas lus wireless.Tam sim no, muaj peb txoj kev sib txuas lus tseem ceeb uas siv rau ntawm cov nqi hluav taws xob: 433 MHz, ntiag tug 2.4GHz, Bluetooth, thiab txhua qhov ntawm peb txoj cai muaj nws qhov zoo thiab qhov tsis zoo.
Yog li, Bluetooth yog ib qho ntawm cov txheej txheem ntau dua, tab sis qhov tseeb, hauv kev ua lag luam, Bluetooth thiab ntiag tug 2.4GHz raws tu qauv siv yog hais txog tib yam.Tab sis tam sim no Bluetooth rau cov nqi hluav taws xob los tsim cov qauv tshiab, nws tsis yooj yim pom, yog txhawm rau ntes tus nqi hluav taws xob daim ntawv thov no ua lag luam ntau dua.
Dab tsi tshiab nrog tus qauv Bluetooth ESL?
Tam sim no, lub vojvoog ntawm ESL cov chaw nres tsheb yog nyob nruab nrab ntawm 30-40 meters, thiab qhov siab tshaj plaws ntawm cov cim npe uas tuaj yeem ua tau txawv ntawm 1000-5000.Tab sis raws li qhov tseeb Bluetooth Core Specification Version 5.4, raws li kev txhawb nqa ntawm cov thev naus laus zis tshiab, lub network tuaj yeem txuas tau 32,640 ESL li, ntxiv rau kev paub txog ESL cov khoom siv thiab kev sib txuas lus ob txoj hauv kev.
Bluetooth 5.4 hloov tshiab ob yam ntxwv ntsig txog hluav taws xob nqi cim npe:
1. Kev tshaj tawm raws sijhawm nrog cov lus teb (PAwR, kev tshaj tawm raws sijhawm nrog cov lus teb)
PAwR yuav tso cai rau kev siv lub hnub qub network nrog ob txoj kev sib txuas lus, ib qho kev ua kom muaj peev xwm ntawm ESL cov cuab yeej tau txais cov ntaub ntawv thiab teb rau tus neeg xa khoom.Tsis tas li ntawd, cov cuab yeej ESL tuaj yeem muab faib ua ntau pawg, thiab txhua lub cuab yeej ESL muaj qhov chaw nyob tshwj xeeb los txhawb kev sib txuas thiab ua kom muaj kev sib txuas lus ib-rau-ib thiab ib-rau-ntau.
Hauv daim duab, AP yog tus tshaj tawm PAwR;ESL yog tus nqi hluav taws xob (tseem yog sib txawv GRPS, nrog rau tus lej cais);subevent yog ib qho subvent;rsp qhov yog qhov teb qhov.Hauv daim duab, kab rov tav dub yog AP xa cov lus txib thiab pob ntawv rau ESL, thiab kab liab kab rov tav yog ESL teb thiab pub rov qab rau AP.
Raws li Bluetooth Core Specification Version 5.4, ESL siv cov cuab yeej hais tawm tswv yim (binary) uas muaj 8-ntsis ESL ids thiab 7-ntsis pab pawg ids.Thiab ESL ID yog qhov tshwj xeeb hauv ntau pawg.Yog li, ESL cov cuab yeej network tuaj yeem muaj txog 128 pawg, txhua tus tuaj yeem muaj txog 255 qhov tshwj xeeb ESL cov cuab yeej uas yog cov tswv cuab ntawm pawg.Hauv cov ntsiab lus yooj yim, tej zaum yuav muaj tag nrho ntawm 32,640 ESL cov khoom siv hauv lub network, thiab txhua daim ntawv lo tuaj yeem tswj tau los ntawm ib qho chaw nkag.
2. Encrypted Advertising Data (EAD, Encrypted broadcast data)
EAD feem ntau muab kev tshaj tawm cov ntaub ntawv encryption ua haujlwm.Tom qab cov ntaub ntawv tshaj tawm tau encrypted, nws tuaj yeem tau txais los ntawm txhua lub cuab yeej, tab sis tsuas yog tuaj yeem decrypted thiab txheeb xyuas los ntawm cov cuab yeej uas yav dhau los tau qhia tus yuam sij kev sib txuas lus.Qhov txiaj ntsig tseem ceeb ntawm qhov tshwj xeeb no yog tias cov ntsiab lus ntawm cov pob ntawv tshaj tawm tau hloov pauv raws li qhov chaw nyob ntawm cov cuab yeej hloov pauv, txo qhov kev pheej hmoo ntawm kev taug qab.
Raws li qhov saum toj no ob lub ntsiab lus ntawm qhov hloov tshiab, Bluetooth yuav ua tau zoo dua hauv cov ntawv nplaum hluav taws xob.Tshwj xeeb tshaj yog piv nrog 433MHz thiab ntiag tug 2.4GHz, lawv tsis muaj cov qauv kev sib txuas lus thoob ntiaj teb, kev ua tau zoo, kev ruaj ntseg, kev ruaj ntseg tsis tuaj yeem lav zoo dua, tshwj xeeb tshaj yog nyob rau hauv cov nqe lus ntawm kev ruaj ntseg, qhov ua tau ntawm deciphering yuav ntau dua.
Nrog rau kev tuaj txog ntawm tus qauv tshiab, kev lag luam hluav taws xob nqi hluav taws xob kuj tseem tuaj yeem ua rau qee qhov kev hloov pauv, tshwj xeeb tshaj yog cov tuam txhab kev sib txuas lus thiab cov chaw muab kev daws teeb meem hauv nruab nrab ntawm cov saw hlau.Rau cov tuam txhab ntawm Bluetooth kev daws teeb meem, seb puas yuav txhawb OTA hloov tshiab ntawm cov khoom muag thiab seb puas yuav ntxiv Bluetooth 5.4 rau hauv cov khoom tshiab yog cov lus nug uas yuav tsum tau txiav txim siab.Thiab rau cov uas tsis yog-Bluetooth scheme manufacturers, seb puas yuav hloov lub tswv yim tseem ceeb siv Bluetooth kuj yog ib qho teeb meem.
Tab sis tom qab ntawd ib zaug ntxiv, kev lag luam hluav taws xob hluav taws xob tau tsim kho li cas niaj hnub no, thiab dab tsi yog qhov nyuaj?
Electronic price tag kev lag luam txoj kev loj hlob thiab teeb meem
Tam sim no, los ntawm nws txoj kev lag luam nce toj e-daim ntawv xa khoom tuaj yeem paub tau, kev xa khoom ntawm cov nqi hluav taws xob tau ua tiav xyoo-rau-xyoo kev loj hlob.
Raws li Lotu Lub Ntiaj Teb ePaper Kev Tshawb Fawb Kev Lag Luam Peb Lub Hlis, 190 lab e-paper modules tau xa mus thoob ntiaj teb hauv thawj peb lub hlis twg ntawm 2022, nce 20.5% ntawm tib lub sijhawm xyoo tas los.Hais txog cov khoom siv hluav taws xob, kev xa khoom thoob ntiaj teb ntawm cov ntawv xa hluav taws xob hauv thawj peb lub hlis twg txog 180 lab daim, nrog rau kev loj hlob ntawm 28.6%.
Tab sis e-tags tam sim no tau khiav mus rau hauv lub fwj hauv kev nrhiav tus nqi nce ntxiv.Txij li cov ntawv sau hluav taws xob muaj lub neej ua haujlwm ntev, nws yuav siv sijhawm tsawg kawg 5-10 xyoo los hloov lawv, yog li yuav tsis muaj kev hloov pauv hauv lub sijhawm ntev, yog li peb tuaj yeem nrhiav kev lag luam nce ntxiv.Qhov teeb meem, txawm li cas los xij, yog tias ntau lub khw muag khoom tsis kam hloov mus rau cov npe hluav taws xob."Qee lub khw muag khoom tsis kam lees txais ESL thev naus laus zis vim muaj kev txhawj xeeb txog tus neeg muag khoom kaw-hauv, kev sib cuam tshuam, kev ua kom muaj peev xwm thiab muaj peev xwm los ntsuas nws mus rau lwm cov phiaj xwm muag khoom ntse," said Andrew Zignani, tus thawj coj tshawb fawb ntawm ABI Research.
Ib yam li ntawd, tus nqi kuj yog ib qho teeb meem loj.Txawm hais tias tus nqi ntawm cov nqi hluav taws xob tau hloov kho kom txo tau cov nqi ntau, nws tseem tsuas yog siv los ntawm cov khw loj xws li Walmart thiab Yonghui hauv khw muag khoom.Rau cov khw muag khoom me me hauv zej zog, cov khw muag khoom yooj yim thiab cov khw muag ntawv, nws cov nqi tseem tseem siab.Thiab nws tsim nyog hais tias cov npe hluav taws xob hluav taws xob kuj tsuas yog qhov yuav tsum tau ua rau cov khw muag khoom tsis loj.
Ntxiv mus, tam sim no daim ntawv thov scenarios ntawm electronic price tags kuj yooj yim.Tam sim no, 90% ntawm cov nqi hluav taws xob tau siv nyob rau hauv cov khw muag khoom, tab sis tsawg dua 10% yog siv hauv chaw ua haujlwm, kho mob thiab lwm yam xwm txheej.SES-imagotag, lub tuam txhab loj tshaj plaws hauv kev lag luam digital price tag, ntseeg hais tias tus nqi digital yuav tsum tsis yog ib qho khoom siv tus nqi siab xwb, tab sis yuav tsum dhau los ua microweb ntawm omnihanatic cov ntaub ntawv uas tuaj yeem pab cov neeg siv khoom txiav txim siab siv nyiaj thiab txuag lub sijhawm ua haujlwm thiab cov neeg ua haujlwm. thiab nqi.
Txawm li cas los xij, kuj tseem muaj xov xwm zoo tshaj qhov nyuaj.Kev nkag mus ntawm cov nqi hluav taws xob hluav taws xob hauv kev lag luam hauv tsev yog tsawg dua 10%, uas txhais tau hais tias tseem muaj ntau lub khw yuav tsum tau tapping.Nyob rau tib lub sijhawm, nrog rau kev ua kom zoo ntawm txoj cai tswj hwm kev sib kis, kev rov qab los ntawm kev noj yog qhov sib txawv loj, thiab kev ua pauj rov qab los ntawm cov khw muag khoom sab nraud kuj tuaj, uas tseem yog lub sijhawm zoo rau cov nqi hluav taws xob los nrhiav kev lag luam loj hlob.Tsis tas li ntawd, ntau tus neeg ua si hauv kev lag luam saw tau nquag tso tawm cov npe hluav taws xob hluav taws xob, Qualcomm thiab SES-imagotag tau koom tes ntawm cov qauv hluav taws xob cov nqi cim npe.Nyob rau hauv lub neej yav tom ntej, nrog rau daim ntawv thov ntawm high technology thiab cov qauv ntawm standardization, hluav taws xob nqi cim npe kuj yuav muaj lub neej yav tom ntej tshiab.
Post lub sij hawm: Feb-21-2023