Smart Weigh yadzipereka kuthandiza makasitomala kukulitsa zokolola pamtengo wotsika.
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Smart Weigh yadzipereka kuthandiza makasitomala kukulitsa zokolola pamtengo wotsika.
Wolemba: Smartweigh-Multihead Weighter
CAN (CantrollerAreaNetwork) basi yamabasi, ndiye kuti, mabasi owongolera amdera lanu, amagwiritsidwa ntchito kwambiri pamakina owongolera mafakitale, zinthu zamagetsi ndi mafakitale a sensor. Protocol ya basi ya CAN ili ndi miyezo iwiri yapadziko lonse, yomwe ndi ISO11898 ndi ISO011519. Pakati pawo, ISO11898 ndi njira yolumikizirana yothamanga kwambiri, liwiro la kulumikizana ndi 125kbps ~ 1Mbps; mtunda wokulirapo wolumikizirana ndi 40m/1Mbps, womwe ndi wa basi yotseka-loop control system.
ISO011519 ndi njira yolumikizirana yotsika kwambiri yokhala ndi liwiro la 10kbps mpaka 125kbps. Mtunda wokulirapo wolumikizirana ndi 1Km/40kbps, womwe ndi wa mabasi otseguka otumizira ma multihead weigher function. Chiwerengero chachikulu cha malo olumikizirana nawo pa basi ya CAN ndi 110 chifukwa cha kuwopsa kwa njira yolumikizirana ndi mabasi ndi kutsutsa kwa mawonekedwe a basi.
Ngati kulandila ndi kutumiza kumapeto kwa serial port baud rate ndi magawo akulu pang'ono ali ndi zida zoyenera, kulunzanitsa kosungirako zolandirira ndi kutumiza kumatha kumalizidwa. Itha kufalitsa ma multihead weigher ndi njira zingapo monga point-to-point, point-to-multipoint ndi mapulogalamu owulutsa padziko lonse lapansi. Pakakhala malo olumikizirana pa basi ya CAN kuti itumize deta, imatumizidwa kumalo onse olumikizirana pa intaneti mumtundu wa uthenga.
Pamalo aliwonse olumikizira, chidziwitso cha data chimalandiridwa mosasamala kanthu kuti chimatumizidwa chokha kapena ayi. Chizindikiritso cha 11-bit chomwe chili kumayambiriro kwa gulu lililonse la mafayilo amawu ndi chizindikiritso, chomwe chimatanthawuza kufunikira kwa mtundu wa uthenga. Chizindikiritso cha mtundu wa uthenga ndi chapadera mu pulogalamu yofananira, apo ayi kulumikizana kudzakhala kolakwika; ndondomeko yonseyi ili motere: pamene siteshoni ikufuna kutumiza deta kumalo ena, CPU ya siteshoniyi imatumiza chidziwitso cha deta ndi chizindikiritso chake. The CAN Integrated ic wa webusaitiyi ali pakukonzekera pasadakhale; ikalandira kutumiza kuchokera ku bus system, imakhala mkhalidwe wamtundu wa uthenga wokankhira.
CAN Integrated ic imatumiza chidziwitso cha multihead weigher ya data ku mtundu wina wa uthenga molingana ndi protocol ndikutumiza ku bus system. Panthawiyi, masiteshoni ena pamabasi a dongosolo ali m'malo olandirira, ndipo siteshoni iliyonse yomwe imalandira imayankha uthenga womwe walandira. Maonekedwe a malemba amayesedwa, ndipo ngati atumizidwa kwa iwo okha, kusanthula kwa deta kumachitika. Nanga bwanji ngati pali zina zambiri zomwe zimayenera kutumizidwa pamene basi yadongosolo ili yaulere? Choyamba, mtundu wa uthenga wokankhira wina umavomerezedwa ndikusiyanitsidwa. Aliyense amene ali patsogolo kwambiri adzakhala m'basi, ndipo enawo adzasiyidwa. Mwachitsanzo: siteshoni 1, siteshoni 2, siteshoni 3 amakankhiranso mtundu wa uthenga ku bus system: 011111, 0100110, 0100111; basi yadongosolo idzasiyanitsa mtundu wa mauthenga, manambala awiri oyambirira ndi ofanana, kenako kusiyanitsa chiwerengero chachitatu, siteshoni 1 Gawo lachitatu ndi 1, mtundu wa uthenga udzasiyidwa, siteshoni 2 yokha ndi siteshoni 3 yatsala, mu zomwe zigawo zisanu ndi chimodzi zoyambirira za masiteshoni awiriwa ndi ofanana, ndipo gawo lachisanu ndi chiwiri la siteshoni 3 ndi 1, lomwenso lidzasiyidwa, ndipo potsiriza, mtundu wa uthenga wa siteshoni 2 wasungidwa, masiteshoni ena ali pamalo olandirira, ndipo sikophweka kukankhira mtundu wa uthenga bus isanakhale yaulere kachiwiri.
Iyi ndiye njira yolimbikitsira ya system bus multihead weigher ya CAN communication;.
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