Umbhali: Smartweigh–Multihead Weighter
I-CAN (CantrollerAreaNetwork) ibhasi yenkqubo yebhasi, oko kukuthi, iphaneli yokulawula ibhasi yenkqubo yenethiwekhi yendawo, isetyenziswe ngokubanzi kwiinkqubo zokulawula i-industrial, iimveliso zombane kunye namashishini enzwa. Iprotocol yebhasi ye-CAN inemigangatho yesizwe ye-2, eyi-ISO11898 kunye ne-ISO011519. Phakathi kwazo, i-ISO11898 yinkcazo yonxibelelwano olukhawulezayo, isantya sonxibelelwano yi-125kbps ~ 1Mbps; umgama omkhulu wonxibelelwano yi-40m/1Mbps, eyeyebhasi yenkqubo yolawulo oluvaliweyo.
I-ISO011519 yinkcazo yonxibelelwano enesantya esisezantsi kunye nesantya sonxibelelwano se-10kbps ukuya kwi-125kbps. Umgama omkhulu wonxibelelwano yi-1Km/40kbps, eyeye-open-loop transmission multihead weigher function system bus. Inani eliphezulu leendawo zokudibanisa kwi-CAN ibhasi yi-110 ngenxa yengozi yenkqubo yokuchasana noqhagamshelwano lwebhasi kunye ne-resistor kwi-system bus waveform.
Ukuba ukufumana kunye nokuthumela isiphelo se-serial port baud rate kunye ne-bit main parameters zixhotyiswe ngokufanelekileyo, ungqamaniso lwedathabheyisi lokufumana kunye nokuthumela amanqaku kunokugqitywa. Inokudlulisa idatha ye-multihead weigher ngeendlela ezininzi ezifana ne-point-to-point, i-point-to-multipoint kunye neenkqubo zokusasaza zehlabathi. Xa kukho indawo yoqhagamshelwano kwibhasi ye-CAN yokuhambisa idatha, ithunyelwa kuzo zonke iindawo zoqhagamshelwano kwi-Intanethi kwifomathi yomyalezo.
Kwindawo nganye yoqhagamshelo, ulwazi lwedatha lufunyanwa kungakhathaliseki ukuba luthunyelwe kuyo okanye hayi. Isichongi se-11-bit ekuqaleni kweqela ngalinye lefomati zomyalezo sisazisi, esichaza okuphambili kwefomati yomyalezo. Isichongi sefomathi yomyalezo sikhethekile kwisoftware yenkqubo efanayo, kungenjalo unxibelelwano luya kuba lungalunganga; eyona nkqubo iyonke imi ngolu hlobo lulandelayo: xa isikhululo sifuna ukuthumela idatha kwezinye izikhululo, i-CPU yesi sikhululo idlulisela ulwazi lwedatha kunye nesichongi sayo. I-ic ehlanganisiweyo ye-CAN yale webhusayithi ikwimeko yolungiselelo kwangaphambili; xa ifumana ukuthunyelwa kwibhasi yenkqubo, iba yimeko yefomati yomyalezo wokutyhala.
I-ic edibeneyo ye-CAN ithumela ulwazi lwedatha ye-multihead weigher kwifomati ethile yomyalezo ngokweprotocol kwaye iyithumele kwibhasi yenkqubo. Ngeli xesha, ezinye izitishi kwibhasi yenkqubo zikwimeko yokufumana, kwaye isikhululo ngasinye kwimeko yokufumana siphendula kumyalezo ofunyenweyo. Ifomathi yombhalo ivavanywa, kwaye ukuba ithunyelwa kuyo, uhlalutyo lweenkcukacha zedatha luyenziwa. Kuthekani ukuba kukho ezinye iinkcukacha ezininzi eziza kuhanjiswa xa inkqubo yebhasi ikhululekile? Okokuqala, ifomathi yomnye umyalezo wokutyhala yamkelwa kwaye yahlulwa. Nabani na ongoyena uphambili uya kuhlala kwibhasi yenkqubo, kwaye abanye baya kushiywa. Umzekelo: isitishi 1, isitishi 2, isitishi sesi-3 sikwatyhala ifomati yomyalezo kwisistim yebhasi: 011111, 0100110, 0100111; ibhasi yenkqubo iyakwahlula ifomathi yomyalezo, amadijithi amabini okuqala ayafana, kwaye ke yahlula idijithi yesithathu, isikhululo 1 Isuntswana lesithathu ngu-1, ifomathi yomyalezo iya kushiywa, kuphela isitishi sesi-2 kunye nesikhululo sesi-3 esishiyekileyo. apho amasuntswana amathandathu okuqala kwezi zikhululo zibini ayafana, kunye nesuntswana lesixhenxe lesitishi sesi-3 si-1, nayo iya kuyekwa, kwaye ekugqibeleni kuphela Ifomathi yomyalezo wesikhululo sesi-2 igciniwe, ezinye izikhululo zikwimeko yokufumana, kwaye akukho lula ukutyhala ifomati yomyalezo phambi kokuba inkqubo yebhasi ikhululeke kwakhona.
Le yindlela yenkuthazo yenkqubo yebhasi ye-multihead weigher yonxibelelwano lwe-CAN;.
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