Nrog txoj kev loj hlob sai ntawm Is Taws Nem ntawm Yam, Bluetooth tsis tshua muaj zog thev naus laus zis tau siv dav, thiab Bluetooth tsis tshua muaj zog thev naus laus zis tau txuas ntxiv mus, thiab txhua qhov kev tsim kho tshiab yog txheej txheem tshiab.Lub tswv yim ntawm lub zog qis Bluetooth thev naus laus zis yog tias nws muaj kev siv hluav taws xob tsawg.Qhov tseeb, nws tseem muaj qee qhov kev paub txias txias.Cia peb saib.
1. Bluetooth Tsawg Zog yog rov qab tau tshaj:
Piv txwv li, tam sim no uas Bluetooth 5.2 tau tso tawm, thiab koj tsim ib lub cuab yeej siv Bluetooth 5.2 thev naus laus zis, lub cuab yeej tuaj yeem cuam tshuam nrog cov cuab yeej siv Bluetooth 4.0 thev naus laus zis.Muaj kev zam rau txoj cai no, tshwj xeeb tshaj yog thaum ib qho ntawm cov cuab yeej siv cov yam ntxwv xaiv rau ib qho tshwj xeeb Bluetooth version, tab sis ntawm cov haujlwm tseem ceeb, cov lus qhia tshwj xeeb tau lees tias rov qab sib raug zoo.
2. Bluetooth Tsawg Zog tuaj yeem ua tiav ntau dua 1 km:
Lub ntsiab txhais ntawm lub zog qis Bluetooth thev naus laus zis yog qhov muaj zog tsawg, kev sib kis luv luv.Tab sis hom tshiab hu ua Long Range Mode (Coded PHY) tau tshaj tawm hauv Bluetooth 5.0, uas tso cai rau BLE cov cuab yeej sib txuas lus ntev dua, mus txog 1.5 km kab-ntawm-pom.
3. Bluetooth tsis tshua muaj zog technology txhawb point-to-point, hnub qub thiab mesh topologies:
Bluetooth qis zog thev naus laus zis yog ib qho ntawm ob peb lub tshuab hluav taws xob qis wireless uas tuaj yeem ua kom haum rau ntau yam topologies rau ntau yam kev siv sib txawv.Nws ib txwm txhawb nqa kev sib txuas lus nrog phooj ywg, xws li ntawm lub xov tooj smartphone thiab lub zog tracker.Tsis tas li ntawd, nws txhawb nqa ib-rau-ntau qhov topologies, xws li Bluetooth Low Energy hub uas cuam tshuam nrog ntau yam khoom siv hauv tsev ntse ib txhij.Thaum kawg, nrog kev qhia txog Bluetooth mesh specification nyob rau hauv Lub Xya hli ntuj 2017, BLE kuj txhawb ntau-rau-ntau yam topologies (mesh).
4. Cov pob ntawv tshaj tawm lub zog ntawm Bluetooth muaj txog 31 bytes ntawm cov ntaub ntawv:
Qhov no yog tus qauv loj ntawm kev tshaj tawm kev them nyiaj rau cov pob ntawv xa mus rau hauv cov kev tshaj tawm thawj (37, 38, thiab 39).Txawm li cas los xij, nco ntsoov tias cov 31 bytes yuav suav nrog tsawg kawg ob bytes: ib qho rau qhov ntev thiab ib qho rau hom.Muaj 29 bytes sab laug rau cov neeg siv cov ntaub ntawv.Tsis tas li ntawd, nco ntsoov tias yog tias koj muaj ntau qhov chaw nrog cov ntaub ntawv sib txawv, txhua hom yuav siv ob lub bytes ntxiv rau qhov ntev thiab hom.Rau cov ntawv tshaj tawm xa mus rau lwm qhov kev tshaj tawm xov xwm (qhia hauv Bluetooth 5.0), kev them nyiaj tau nce mus rau 254 bytes es tsis yog 31 bytes.
Post lub sij hawm: May-12-2022
