Akwai ƙarin lokuta na haɗa na'urorin Bluetooth da yawa a rayuwar yau da kullun. A ƙasa akwai gabatarwa ga ilimin haɗin kai da yawa don bayanin ku.
Haɗin Bluetooth guda ɗaya na gama gari
Haɗin Bluetooth guda ɗaya, wanda kuma aka sani da haɗin kai-to-point, shine mafi yawan yanayin haɗin Bluetooth, kamar wayoyin hannu<->mota a kan Bluetooth. Kamar yawancin ka'idojin sadarwa, sadarwar RF ta Bluetooth kuma tana rarraba zuwa na'urori na zamani/bayi, wato Master/Bawa (wanda kuma aka sani da HCI Master/HCI Slave). Za mu iya fahimtar na'urorin HCI Master a matsayin "Masu samar da agogon RF", kuma sadarwar mara waya ta 2.4G tsakanin Jagora/Bawa a cikin iska dole ne ta dogara da Agogon da Jagora ya bayar.
Hanyar haɗin Bluetooth da yawa
Akwai hanyoyi da yawa don samun haɗin haɗin Bluetooth da yawa, kuma mai zuwa shine gabatarwar zuwa 3.
1: Point-to-Multi Point
Wannan yanayin ya zama ruwan dare gama gari (kamar firintar BT826 module), inda tsarin zai iya haɗawa lokaci guda har zuwa wayoyin hannu 7 (hanyoyin ACL 7). A cikin yanayin Point zuwa Multi Point, na'urar Point (BT826) tana buƙatar canzawa sosai daga HCI-Role zuwa HCI-Master. Bayan nasarar sauyawa, na'urar Point tana ba da agogon Baseband RF zuwa wasu na'urorin Multi Point don tabbatar da agogon na musamman. Idan sauyawa ya gaza, yana shiga yanayin Scatternet (scenario b a cikin adadi mai zuwa)
2: Scatternet (c a cikin adadi na sama)
Idan yanayin haɗe-haɗe da yawa yana da ɗan rikitarwa, ana buƙatar nodes da yawa a tsakiya don watsawa. Don waɗannan nodes na relay, ya kamata su kuma zama HCI Master/Bawa (kamar yadda aka nuna a cikin kullin ja a cikin wannan adadi na sama).
A cikin yanayin Scatternet, saboda kasancewar HCI Masters da yawa, ana iya samun masu samar da agogon RF da yawa, wanda ke haifar da haɗin yanar gizo mara ƙarfi da ƙarancin tsangwama.
Lura: A cikin yanayin aikace-aikacen aikace-aikacen, ya kamata a guji wanzuwar Scatternet gwargwadon yiwuwa
BLE MESH
BLE Mesh a halin yanzu shine mafi yawan amfani da hanyar sadarwar Bluetooth (kamar a fagen gidaje masu wayo)
Sadarwar saƙa na iya samun hanyar sadarwa mai alaƙa tsakanin nodes da yawa, wanda shine hanyar sadarwar da aka rarraba tare da takamaiman abun ciki da yawa waɗanda za a iya tambaya kai tsaye.
3: Shawarar haɗin kai da yawa
Muna ba da shawarar ƙaramin iko (BLE) 5.2 wanda ke goyan bayan nau'ikan Bluetooth Class 1. FSC-BT671C tana amfani da Silicon Labs EFR32BG21 chipset, gami da 32-bit 80 MHz ARM Cortex-M33 microcontroller wanda zai iya samar da matsakaicin fitarwar wutar lantarki na 10dBm. Ana iya amfani da shi don aikace-aikacen sadarwar Bluetooth Mesh kuma ana amfani dashi sosai a fannoni kamar sarrafa hasken wuta da tsarin gida mai wayo.
related kayayyakin
FSC-BT671C fasali:
- low Power Bluetooth (BLE) 5.2
- Haɗe-haɗe na MCU Bluetooth
- Class 1 (Ikon sigina har zuwa +10dBm)
- Bluetooth BLE mesh sadarwar
- Tsohuwar ƙimar UART baud shine 115.2Kbps, wanda zai iya tallafawa 1200bps zuwa 230.4Kbps
- UART, I2C, SPI, 12 bit ADC (1Msps) haɗin haɗin bayanai
- Ƙananan girman: 10mm * 11.9mm * 1.8mm
- Samar da firmware na musamman
- Yana goyan bayan sabunta firmware akan iska (OTA).
- Yanayin aiki: -40 ° C ~ 105 ° C
Summary
Bluetooth Haɗin haɗin kai da yawa ya haɓaka saurin dacewa a rayuwa. Na yi imani za a sami ƙarin aikace-aikacen haɗin kai na Bluetooth a rayuwa. Idan kuna buƙatar ƙarin koyo, zaku iya tuntuɓar ƙungiyar Feasycom!
