Amasu Okuxhumana Ngedatha Phakathi Kwamadivayisi
Esikhathini sanamuhla sedijithali, ukuxhumana kwedatha phakathi kwamadivayisi sekuwumgogodla wemisebenzi yebhizinisi, izinsizakalo zomphakathi, kanye nokuphila kwansuku zonke emhlabeni jikelele. Lobu buchwepheshe buvumela amadivayisi ukuthi abelane ngedatha, imiyalelo, kanye nolunye ulwazi ngempumelelo nangendlela ephumelelayo. Lesi sihloko sizoxoxa ngamasu okuxhumana kwedatha phakathi kwamadivayisi, izinhlobo zawo, kanye nezinhlelo zokusebenza zawo zangempela kanye nezinselele.
Izinhlobo Zobuchwepheshe Bokuxhumana Ngedatha
1. Ukuxhumana Okusheshayo Nokuhambisanayo
Ukuxhumana Okusheshayo: Idatha ithunyelwa kancane kancane ngomugqa owodwa wokuxhumana. Le ndlela ihlanganisa ukusetshenziswa kwamachweba afana ne-RS232, i-UART (Universal Asynchronous Receiver/Transmitter), kanye nezinye izinqubo zokuxhuma ezifana ne-SPI (Serial Peripheral Interface) kanye ne-I2C (Inter-Integrated Circuit). Ukuxhumana okusheshayo kuvame ukusetshenziswa ekuxhumaneni okude ngoba kusebenzisa umugqa owodwa wokuxhumana olula futhi osebenzayo.
Ukuxhumana Okuhambisanayo: Idatha ithunyelwa ngesikhathi esisodwa ngamabhithi amaningi kusetshenziswa imigqa eminingi yokuxhumana. Isibonelo, ichweba elihambisanayo kukhompyutha lithumela amabhithi angu-8 edatha ngesikhathi esisodwa. Le ndlela ishesha kunokuxhumana okulandelanayo kodwa iyinkimbinkimbi futhi iyabiza ngoba idinga izintambo eziningi.
2. Ukuxhumana Okuvumelanayo Nokungavumelani
Ukuxhumana Okuvumelanayo: Idatha idluliselwa ngokuthembela esignalini yesikhathi evumelanisiwe, noma iwashi, phakathi komthumeli nomamukeli. Isibonelo sokuxhumana okuvumelanayo yi-SPI, lapho inkosi ilawula iwashi, bese isigqila sithumela noma samukela idatha evumelanisiwe nale signali yewashi.
Ukuxhumana Okungenasilinganiselo: Idatha idluliselwa ngaphandle kwesignali yesikhathi ehambisanayo. Umthumeli nomemukeli basebenzisa ama-start and stop bits ukukhombisa ukuqala nokuphela kwedatha. I-UART iyisibonelo esivamile sokuxhumana okungenasilinganiselo.
3. Ukuxhumana Okunezintambo Nokungenantambo
Ukuxhumana Okunezintambo: Kusebenzisa imidiya ebonakalayo njengentambo yethusi, intambo ye-fiber optic, noma intambo ye-coaxial ukudlulisa idatha. Isibonelo yi-Ethernet, lapho amadivayisi axhunywe khona ngentambo ye-UTP (Unshielded Twisted Pair).
Ukuxhumana Okungenantambo: Kusebenzisa amaza kagesi afana namaza omsakazo, ama-microwave, noma ama-infrared. Izibonelo zifaka phakathi i-Wi-Fi, i-Bluetooth, ne-Zigbee. Ukuxhumana okungenantambo kunikeza ukuhamba okulula nokufakwa, kodwa kuvame ukubhekana nezinkinga zokuphazamiseka kanye nokuphepha.
4. Ukuxhumana Okuqondile Nokuningi
Ukukhomba-kuya-Ephuzwini: Ukuxhumanisa amadivayisi amabili ngqo. Isibonelo esilula ukuxhumana phakathi kwekhompyutha nephrinta ngekhebula le-USB.
Ama-Multi-Point: Ukuxhuma amadivayisi angaphezu kwamabili ukuze akwazi ukuxhumana. Isibonelo inethiwekhi yekhompyutha exhumanisa ama-PC amaningi kuseva eyodwa.
Iphrothokholi Yokuxhumana
1. I-TCP/IP (Iphrothokholi Yokulawula Ukudluliselwa/Iphrothokholi Ye-inthanethi)
I-TCP/IP iyiphrothokholi ejwayelekile esetshenziselwa ukudlulisa idatha ku-inthanethi. I-TCP inesibopho sokuqinisekisa ukuthi idatha ilethwa ngendlela efanele futhi iphelele, kanti i-IP inesibopho sokuqondisa nokuletha amaphakethe edatha kusuka kudivayisi eyodwa kuya kwenye.
2. I-HTTP/HTTPS (Iphrothokholi Yokudlulisa I-HyperText/Ephephile)
I-HTTP isetshenziselwa ukudlulisa amakhasi ewebhu kusuka kuseva kuya kusiphequluli. Inguqulo ye-HTTPS yengeza ungqimba lokuphepha ngokusebenzisa i-SSL/TLS, ebethela idatha ngesikhathi sokudluliselwa ukuze ivikele ubumfihlo nokuphepha.
3. I-Bluetooth
I-Bluetooth iyiphrothokholi yokuxhumana engenantambo yebanga elifushane esetshenziselwa ukuxhuma amadivayisi afana namaselula, ama-headphone, izipikha, namanye amadivayisi. I-Bluetooth igcina ugesi kahle futhi kulula ukuyifaka.
4. I-MQTT (Ukuthutha kwe-Telemetry Yokuthumela Imiyalezo Emgqeni)
I-MQTT iyiphrothokholi yokuxhumana elula esetshenziswa ku-Inthanethi Yezinto (IoT). I-MQTT isebenza kumodeli yokubhalisela ukushicilela, ivumela amadivayisi ukuthumela nokwamukela imiyalezo kahle.
5. Inyosi yeZigbee
I-Zigbee ingenye inqubo yokuxhumana engenantambo eyenzelwe i-IoT egxile ekusetshenzisweni kwamandla kanye nokonga izindleko. I-Zigbee ivame ukusetshenziswa ezinhlelweni zokusebenza zasekhaya ezihlakaniphile.
Ukusetshenziswa Kokuxhumana Kwedatha Phakathi Kwamadivayisi
I-Intanethi Yezinto (IoT)
I-IoT ixhumanisa amadivayisi ahlukahlukene njengezinzwa, imishini, nezimoto, okuzivumela ukuthi zithumele futhi zamukele idatha nge-inthanethi. Ukuxhumana kwedatha phakathi kwamadivayisi kuvumela ukuzenzekela kanye nokuqapha kude emakhaya ahlakaniphile, kwezolimo, kwezempilo kanye nasembonini yokukhiqiza.
2. Ukubalwa Kwamafu
Izinsizakalo zokubala amafu njenge-AWS, i-Google Cloud, kanye ne-Microsoft Azure zisebenzisa ukuxhumana kwedatha phakathi kwamadivayisi ukuphatha, ukugcina, kanye nokucubungula idatha. Abasebenzisi bangafinyelela idatha kanye nezinhlelo zokusebenza kusuka kumadivayisi amaningi ezindaweni eziningi ngaphandle kokuthembela engqalasizinda yasendaweni.
3. Amanethiwekhi Ekhompyutha
Ama-LAN (Amanethiwekhi Endawo Yasendaweni) kanye nama-WAN (Amanethiwekhi Endawo Ebanzi) ayizibonelo zangempela zokuxhumana kwedatha phakathi kwamadivayisi. Amakhompyutha kunethiwekhi angabelana ngamafayela, isofthiwe, kanye namadivayisi ehadiwe afana namaphrinta.
4. Ezokuthutha
Ohlelweni lokuthutha oluhlakaniphile, izinzwa ezahlukahlukene, izimoto, kanye namayunithi okulawula ithrafikhi ziyaxhumana ukuze kuthuthukiswe ukuhamba kwethrafikhi, kuthuthukiswe ukuphepha, futhi kuncishiswe ukungcola.
Izinselele Nezixazululo
1. Ukuphepha
Ukuphepha kungenye yezinselelo ezinkulu ekuxhumaneni kwedatha phakathi kwamadivayisi. Lawa madivayisi avame ukuba yizisulu zokuhlaselwa kwe-cyber, kusukela ekugqekeni kuya ekwebiweni kwedatha. Izixazululo ezivamile zifaka phakathi ukubethela idatha, ukuqinisekiswa kwezinto eziningi, kanye nokuvuselelwa kwe-firmware njalo.
2. Ukusebenzisana
Akuwona wonke amadivayisi asebenzisa amazinga noma izinqubo ezifanayo. Lokhu kungabangela izinkinga lapho kuxhuma amadivayisi avela kubakhiqizi abahlukene. Ukuze kuxazululwe lokhu, amazinga kanye nezinqubo ezifana ne-MQTT kanye ne-Zigbee kuye kwathuthukiswa ukuqinisekisa ukusebenzisana okungcono.
3. Ukubambezeleka kanye ne-Bandwidth
Ukuxhumana kwedatha phakathi kwamadivayisi kuvame ukubhekana nezinkinga zokubambezeleka (ukubambezeleka) kanye nemikhawulo ye-bandwidth. Lokhu kungaba yinto ebaluleke kakhulu ezinhlelweni zokusebenza ezifana nezimoto ezizimele kanye ne-telemedicine, lapho impendulo esheshayo ibaluleke khona. Ubuchwepheshe be-5G kulindeleke ukuthi bunciphise lezi zinkinga ngokunikeza isivinini sokudlulisa idatha esiphezulu kakhulu kanye nokubambezeleka okuphansi kunobuchwepheshe bangaphambilini.
4. Ukusetshenziswa Kwamandla
Amadivayisi nezinzwa ze-IoT zivame ukuklanywa ukuthi zisebenze isikhathi eside, ngezinye izikhathi ngezinsiza ezilinganiselwe njengamabhethri. Izixazululo ezisebenzisa amandla kahle kanye nezinqubo zokuxhumana ezisebenza kahle zibalulekile ekuqinisekiseni ukuthembeka kwesikhathi eside.
Isiphetho
Amasu okuxhumana kwedatha phakathi kwamadivayisi ayisisekelo se-ecosystem yethu yedijithali yesimanje. Kusukela ku-IoT kuya kumanethiwekhi ekhompyutha, ukuxhumana kwedatha kwenza ubuchwepheshe obuhlukahlukene busebenze ndawonye, okuholela ezixazululweni ezihlakaniphile nezisebenza kahle kakhulu. Ngenkathi izinselele ezifana nokuphepha, ukusebenzisana, ukubambezeleka, kanye nokusetshenziswa kwamandla ziqhubeka, izixazululo ezintsha ziyaqhubeka nokuvela ukuze zixazululwe. Ngokusekelwa okuqhubekayo ocwaningweni nasekuthuthukisweni, singalindela ukuxhumana kwedatha phakathi kwamadivayisi ukuthi kusheshe, kuphephe kakhudlwana, futhi kusebenze kahle kakhudlwana esikhathini esizayo.
