Yinto eqhelekileyo ukuba iithebhulethi eziqinileyo ezifakwe kwizithuthi ezinee-interfaces ezinde zisetyenziswa kumashishini amaninzi ukuphucula ukusebenza kakuhle kunye nokwenza imisebenzi ethile ethile. Indlela yokuqinisekisa ukuba iithebhulethi zine-interfaces ezihambelanayo nezixhobo ezixhunyiweyo kwaye ziyahlangabezana neemfuno ezithile zesicelo iye yaba yingxaki yabathengi. Eli nqaku liza kwazisa ii-interfaces ezininzi eziqhelekileyo zethebhulethi eziqinileyo ezifakwe kwizithuthi ukukunceda uqonde ngcono iimpawu zazo kwaye ukhethe isisombululo esifanelekileyo.
·I-CANBus
I-interface ye-CANBus yi-interface yonxibelelwano esekelwe kwitekhnoloji yenethiwekhi yendawo yokulawula, esetyenziselwa ukuqhagamshela iiyunithi ezahlukeneyo zolawulo lwe-elektroniki (ECU) kwiimoto kunye nokwenza utshintshiselwano lwedatha kunye nonxibelelwano phakathi kwazo.
Ngokusebenzisa i-interface ye-CANBus, ithebhulethi efakwe kwisithuthi inokuqhagamshelwa kwinethiwekhi ye-CAN yesithuthi ukuze kufunyanwe ulwazi ngesimo sesithuthi (njengesantya sesithuthi, isantya senjini, indawo yokujija, njl.njl.) kwaye ibonelele abaqhubi ngexesha langempela. Ithebhulethi efakwe kwisithuthi ingathumela nemiyalelo yolawulo kwinkqubo yesithuthi nge-interface ye-CANBus ukuze kufezekiswe imisebenzi yokulawula ekrelekrele, efana nokupaka ngokuzenzekelayo kunye nolawulo olukude. Kubalulekile ukuqaphela ukuba ngaphambi kokudibanisa i-interface ye-CANBus, kuyimfuneko ukuqinisekisa ukuhambelana phakathi kwe-interface kunye nenethiwekhi ye-CAN yesithuthi ukuze kuthintelwe ukusilela konxibelelwano okanye ukulahleka kwedatha.
· J1939
I-interface ye-J1939 yi-protocol ekumgangatho ophezulu esekwe kwi-Controller Area Network, esetyenziswa kakhulu kunxibelelwano lwedatha olulandelelanayo phakathi kweyunithi yolawulo lwe-elektroniki (ECU) kwizithuthi ezinzima. Le protocol ibonelela nge-interface esemgangathweni yonxibelelwano lwenethiwekhi yezithuthi ezinzima, eluncedo ekusebenzisaneni phakathi kwe-ECU yabavelisi abahlukeneyo. Ngokusebenzisa itekhnoloji ye-multiplexing, unxibelelwano lwenethiwekhi olunesantya esiphezulu olusekwe kwibhasi ye-CAN lubonelelwa kwi-sensor nganye, i-actuator kunye nomlawuli wesithuthi, kwaye ukwabelana ngedatha ekhawulezayo kuyafumaneka. Ixhasa iiparameter kunye nemiyalezo echazwe ngumsebenzisi, elula uphuhliso kunye nokwenza ngokwezifiso ngokweemfuno ezahlukeneyo ezithile.
· OBD-II
I-interface ye-OBD-II (On-Board Diagnostics II) yindlela eqhelekileyo yokujonga inkqubo yokuxilonga yesizukulwana sesibini, evumela izixhobo zangaphandle (ezifana nezixhobo zokuxilonga) ukuba zinxibelelane nenkqubo yekhompyutha yesithuthi ngendlela emiselweyo, ukuze zijonge kwaye zibuyisele ulwazi olusebenzayo kunye nemeko yempazamo yesithuthi, kwaye zibonelele ngolwazi olubalulekileyo lwesalathiso kubanini bezithuthi kunye nabasebenzi bokulungisa. Ukongeza, i-interface ye-OBD-II ingasetyenziswa ukuvavanya imeko yokusebenza kwezithuthi, kubandakanya ukonga ipetroli, ukukhutshwa komoya, njl.njl., ukunceda abanini ukugcina izithuthi zabo.
Ngaphambi kokusebenzisa isixhobo sokuskena se-OBD-II ukufumanisa imeko yesithuthi, kufuneka kuqinisekiswe ukuba injini yesithuthi ayiqalisi. Emva koko faka iplagi yesixhobo sokuskena kwi-interface ye-OBD-II ekwinxalenye esezantsi yekhabhini yesithuthi, uze uqalise isixhobo sokuxilonga.
· Igalelo le-Analog
I-interface yokufaka i-analog ibhekisa kwi-interface enokufumana ubungakanani obuhlala butshintsha kwaye ibuguqule bube ziimpawu ezinokucutshungulwa. Ezi zibalo zomzimba, kubandakanya ubushushu, uxinzelelo kunye nesantya sokuhamba, zihlala zivavanywa zii-sensors ezifanelekileyo, ziguqulwe zibe ziimpawu zombane ngabaguquli, kwaye zithunyelwe kwi-port yokufaka i-analog yomlawuli. Ngokusebenzisa iindlela ezifanelekileyo zokuthatha iisampulu kunye nokulinganisa, i-interface yokufaka i-analog inokubamba ngokuchanekileyo kwaye iguqule utshintsho oluncinci lwesignali, ngaloo ndlela ifezekisa ukuchaneka okuphezulu.
Xa kusetyenziswa ithebhulethi efakwe kwisithuthi, i-interface yokufaka i-analog ingasetyenziselwa ukufumana imiqondiso ye-analog evela kwiisensa zesithuthi (ezifana nesensa yobushushu, isensa yoxinzelelo, njl.njl.), ukuze kujongwe ngexesha langempela kwaye kuchongwe iimpazamo zesimo sesithuthi.
· RJ45
I-interface ye-RJ45 yi-interface yonxibelelwano lwenethiwekhi, esetyenziselwa ukuqhagamshela iikhompyutha, iiswitshi, ii-routers, iimodem kunye nezinye izixhobo kwinethiwekhi yendawo (i-LAN) okanye inethiwekhi yendawo ebanzi (i-WAN). Ineepini ezisibhozo, phakathi kwazo u-1 no-2 zisetyenziselwa ukuthumela imiqondiso yokwahluka, kwaye u-3 no-6 zisetyenziselwa ukufumana imiqondiso yokwahluka ngokulandelelana, ukuphucula amandla okulwa nokuphazamiseka kokudluliselwa kwesignali. Iipini 4, 5, 7 kunye no-8 zisetyenziselwa ikakhulu ukumisa umhlaba kunye nokukhusela, ukuqinisekisa uzinzo lokudluliselwa kwesignali.
Ngokusebenzisa i-interface ye-RJ45, ithebhulethi efakwe kwisithuthi inokudlulisa idatha nezinye izixhobo zenethiwekhi (ezifana nee-routers, ii-switches, njl.njl.) ngesantya esiphezulu nangokuzinzileyo, ihlangabezana neemfuno zonxibelelwano lwenethiwekhi kunye nokuzonwabisa kwe-multimedia.
· RS485
I-interface ye-RS485 yi-interface yonxibelelwano oludibeneyo oluyi-half-duplex, olusetyenziselwa ukwenza izinto ngokuzenzekelayo kwimizi-mveliso kunye nonxibelelwano lwedatha. Isebenzisa imo yokudlulisa imiqondiso eyahlukeneyo, ukuthumela nokufumana idatha ngeemigca ezimbini zemiqondiso (A kunye no-B). Inamandla okulwa nokuphazamiseka kwaye inokumelana ngempumelelo nokuphazamiseka kwe-electromagnetic, ukuphazamiseka kwengxolo kunye nemiqondiso yokuphazamiseka kwindalo esingqongileyo. Umgama wokudlulisa we-RS485 unokufikelela kwi-1200m ngaphandle kwe-repeater, nto leyo eyenza ukuba ivelele kwizicelo ezifuna ukudluliselwa kwedatha kumgama omde. Inani eliphezulu lezixhobo ezinokuqhagamshelwa yibhasi ye-RS485 yi-32. Ixhasa izixhobo ezininzi zokunxibelelana kwibhasi enye, nto leyo elula kulawulo oluphakathi kunye nolawulo. I-RS485 ixhasa ukudluliselwa kwedatha ngesantya esiphezulu, kwaye isantya sihlala sifikelela kwi-10Mbps.
· RS422
I-interface ye-RS422 yi-interface yonxibelelwano oludibeneyo olupheleleyo, oluvumela ukuthumela nokufumana idatha ngaxeshanye. Imo yokudlulisa imiqondiso eyahlukileyo iyasetyenziswa, imigca emibini yesignali (Y, Z) isetyenziselwa ukudlulisa kwaye imigca emibini yesignali (A, B) isetyenziselwa ukwamkela, enokumelana ngempumelelo nokuphazamiseka kwe-electromagnetic kunye nokuphazamiseka kwe-ground loop kwaye iphucula kakhulu uzinzo kunye nokuthembeka kokudluliselwa kwedatha. Umgama wokudluliselwa kwe-interface ye-RS422 mde, onokufikelela kwiimitha ezili-1200, kwaye unokudibanisa ukuya kuthi ga kwizixhobo ezili-10. Kwaye ukudluliselwa kwedatha ngesantya esiphezulu ngesantya sokudlulisa se-10 Mbps kunokufezekiswa.
· RS232
I-interface ye-RS232 yindlela eqhelekileyo yokunxibelelana ngokulandelelana phakathi kwezixhobo, esetyenziselwa kakhulu ukuqhagamshela izixhobo zesiphelo sedatha (i-DTE) kunye nezixhobo zonxibelelwano lwedatha (i-DCE) ukuze kufezekiswe unxibelelwano, kwaye yaziwa ngokulula kwayo kunye nokuhambelana okubanzi. Nangona kunjalo, umgama ophezulu wokudlulisela umalunga neemitha ezili-15, kwaye izinga lokudlulisela liphantsi. Inqanaba eliphezulu lokudlulisela lidla ngokuba yi-20Kbps.
Ngokubanzi, i-RS485, i-RS422 kunye ne-RS232 zonke ziyimigangatho yonxibelelwano olulandelelanayo, kodwa iimpawu zazo kunye neemeko zokusetyenziswa zahlukile. Ngamafutshane, ujongano lwe-RS232 lufanelekile kwizicelo ezingadingi ukuhanjiswa kwedatha ngokukhawuleza kumgama omde, kwaye luhambelana kakuhle nezixhobo ezindala kunye neenkqubo. Xa kufuneka kudluliselwe idatha kuzo zombini iindlela ngexesha elinye kwaye inani lezixhobo ezixhunyiweyo lingaphantsi kwe-10, i-RS422 inokuba lukhetho olungcono. Ukuba kufuneka kuqhagamshelwe izixhobo ezingaphezu kwe-10 okanye kufuneka kuthunyelwe isantya sokudlulisa esikhawulezayo, i-RS485 inokuba yeyona ifanelekileyo.
· I-GPIO
I-GPIO yiseti yeepini, ezinokucwangciswa kwimo yokungenisa okanye kwimo yokukhupha. Xa iphini ye-GPIO ikwimo yokungenisa, ingafumana imiqondiso evela kwiisensa (ezifana nobushushu, ukufuma, ukukhanya, njl.njl.), kwaye iguqule ezi miqondiso zibe yimiqondiso yedijithali yokucubungula ithebhulethi. Xa iphini ye-GPIO ikwimo yokukhupha, ingathumela imiqondiso yolawulo kwi-actuators (ezifana neemoto kunye nezibane ze-LED) ukuze kufezekiswe ulawulo oluchanekileyo. I-interface ye-GPIO ingasetyenziswa njengojongano lomaleko olubonakalayo lwezinye iiprotokholi zonxibelelwano (ezifana ne-I2C, i-SPI, njl.njl.), kwaye imisebenzi yonxibelelwano enzima inokufezekiswa ngeesekethe ezandisiweyo.
I-3Rtablet, njengomthengisi onamava eminyaka eli-18 ekuveliseni nasekulungiseni iithebhulethi ezifakwe kwizithuthi, iye yaqatshelwa ngamaqabane ehlabathi ngeenkonzo zayo ezibanzi ezenzelwe wena kunye nenkxaso yobugcisa. Nokuba isetyenziswa kwezolimo, emigodini, kulawulo lweenqwelo-mafutha okanye kwi-forklift, iimveliso zethu zibonisa ukusebenza okugqwesileyo, ukuguquguquka kunye nokuqina. Ezi ndawo zonxibelelwano zolwandiso ezikhankanyiweyo apha ngasentla (CANBus, RS232, njl.njl.) zinokwenziwa ngokwezifiso kwiimveliso zethu. Ukuba uceba ukuphucula indlela osebenza ngayo kwaye uphucule imveliso ngamandla ethebhulethi, ungathandabuzi ukuqhagamshelana nathi ukuze ufunde okungakumbi malunga nemveliso kunye nesisombululo!
Ixesha leposi: Sep-28-2024
