Bluetooth Technology yog tus qauv sib txuas lus wireless uas tso cai rau cov khoom siv los sib pauv cov ntaub ntawv ntau qhov kev ncua deb. Ameslikas tsim nyob rau hauv 1990s, Bluetooth tau dhau los ua qhov tseem ceeb ntawm peb lub neej txhua hnub, los ntawm Wireless Headphones thiab cov keyboard rau iot cov khoom siv thiab cov tshuab ntse. Yog li, Bluetooth ua tshuab ua haujlwm li cas?
1. Cov hauv paus ntawm Bluetooth
Bluetooth sib txuas lus siv qis qis - fais fab, luv {{{1 ghz band, nyob thoob ntiaj teb, muaj spectrum. Cov pawg no yog qhov zoo rau cov khoom uas xav tau sib txuas lus ntau zaus (feem ntau txog 100 metres, nyob ntawm chav kawm Bluetooth). Bluetooth li kev sib txuas lus los ntawm tsim lub network hu ua tus kheej thaj chaw network (piconet).
2. Pairing thiab sib txuas
Rau Bluetooth cov cuab yeej sib txuas lus sib txuas lus nrog txhua tus, lawv yuav tsum xub ua "khub." Pairing koom nrog tsim kev sib txuas nrog kev sib txuas nrog cov yuam sij sib pauv thiab tsim kev ntseeg siab. Feem ntau, cov txheej txheem no tau ua tiav los ntawm kev tso ib lub cuab yeej hauv "nrhiav tau" hom, cia nws pom los ntawm lwm cov khoom siv nyob ze. Thaum pom pom, cov cuab yeej tuaj yeem tsim kev sib txuas los ntawm kev nkag mus rau ib tus neeg passey lossis txais kev thov txuas. Ib zaug ua ke, cov cuab yeej siv tau txais kev hloov pauv thaum lawv nyob ze dua.
3. Tsw Hlav thiab Kev Dag Zog
Ib qho tseem ceeb feature ntawm bluetooth technology yog zaus dhia. Bluetooth cov cuab yeej tsis lo rau ib zaug; Hloov chaw, lawv lub siab sai ntawm 79 txawv raws nyob rau hauv 2.4 GHz Band. Cov thev naus laus zis txo kev cuam tshuam thiab congestion, tshwj xeeb tshaj yog nyob rau hauv ib cheeb tsam uas muaj ntau yam wireless cov khoom siv, xws li tsev lossis chaw haujlwm. Los ntawm nquag dhia ua ntu zus, bluetooth zoo txo qhov cuam tshuam los ntawm lwm cov khoom siv, xws li wi} fi routers thiab lwm yam wireless uas tseem siv 2.4 ghz band. Lub zog tsis tshua muaj zog tsoo (pua pua hops ib ob) kuj pab tiv thaiv cov teeb meem kev nyab xeeb thiab eavesdropping.
4. Tsawg - fais fab tsim
Ib qho tseem ceeb ntawm Bluetooth yog nws cov hluav taws xob tsawg. Bluetooth cov khoom siv tau tsim los haus lub zog me me, ua rau lawv zoo tshaj rau cov cuab yeej hluav taws xob xws li wireless headphones, thiab cov khoom siv ntse. Bluetooth tsawg lub zog (BLE) yog Bluetooth Technology tsim tshwj xeeb rau txawm tias qis dua roj teeb lub neej thaum tseem muab kev sib txuas lus zoo.
5. Cov Ntaub Ntawv Hloov
Synchronous Spinst:Siv rau tiag -} Cov ntaub ntawv cov ntaub ntawv kis tau, xws li streaming audio. Bluetooth cov khoom tuaj yeem synchronize cov ntaub ntawv sib kis los xyuas kom meej kev sib txuas lus du thiab zam kev ncua.
Asynchronous kis:Qhov no yog siv rau tsis - lub sij hawm-}} Cov ntaub ntawv rhiab, cov cuab yeej hloov tshiab. Cov ntaub ntawv kis tau rau hauv pob, thiab cov khoom siv tuaj yeem thov cov kev rov qab yog tias lawv tshawb xyuas cov pob ntawv ploj lossis tsis ncaj.
Bluetooth tuaj yeem ua ob hom kis tau ib txhij, ua rau nws haum rau ntau cov kev siv, los ntawm streaming media kom hloov cov ntaub ntawv ntawm cov khoom siv.
6. Kev ruaj ntseg nta
Qhabnias:Qhov no ua kom ntseeg tau tias tsuas yog cov cuab yeej ntseeg tuaj yeem txuas tau, qhia txog lawv tus kheej los ntawm kev ua khub thiab cov lej encryption.
Encryption:Cov ntaub ntawv encryps sib pauv ntawm cov khoom siv los tiv thaiv eavorpropping.
Kev tso cai: Tom qab ua khub, cov cuab yeej yuav xav tau kev tso cai los qhia cov ntaub ntawv lossis ua qee yam haujlwm, kom muaj kev sib txuas yog qhov raug cai.
Ib qho ntxiv, cov cuab yeej siv Bluetooth txhawb nqa ntau theem kev ruaj ntseg, ua rau lawv haum rau cov chaw ib puag ncig uas cov ntaub ntawv rhiab.
7. Bluetooth versions thiab evolution
Bluetooth 1.0:Thawj qhov chaw ntawm Bluetooth, nrog cov ntaub ntawv ntau tshaj plaws ntawm 721 Kbps.
Bluetooth 2.0 + edr (txhim kho cov ntaub ntawv cov ntaub ntawv):Qhov no qhia cov ntaub ntawv ceev ceev (txog 3 Mbps) thiab txhim kho kev ua haujlwm zoo.
Bluetooth 4.0 (Tsawg Zog):Qhia Bluetooth tsawg lub zog (BLE), ua rau nws zoo rau qis - fais fab khoom xws li Featness Trackers xws li Kev Ua Haujlwm Qoj.
Bluetooth 5.0:Txhim kho kev sib kis muaj ntau yam (txog 240 meters hauv qhov chaw qhib) thiab cov ntaub ntawv (txog li 2 Mbps), ua rau nws cov ntawv thov ntse thiab ntse hauv tsev.
Bluetooth 5.1 thiab 5.2:Ua kom zoo dua txoj kev ua haujlwm raug (txhawb lub kaum sab xis (txhawb lub kaum kev tuaj txog thiab lub kaum sab xis ntawm cov nta tawm), audio zoo, thiab multi {{0} {{0} {{0} {{0} {{0} {{0} - Ntaus Ntawv Txhawb Nqa.
Nrog nws cov hluav taws xob tsawg, luv -}}}} kev sib kis, thiab muaj zog kev ruaj ntseg, Bluetooth tau dhau los ua qhov tseem ceeb ntawm cov khoom siv hluav taws xob niaj hnub. Raws li thev naus laus zis txuas ntxiv mus ua ntej, Bluetooth cov ntawv thov yuav txuas ntxiv ntxiv, coj kev sib txuas lus ntxiv thiab kev yooj yim rau peb lub neej txhua hnub.
