Ka'idar asali ta sadarwa ta CAN a cikin teburin auna nauyi mai yawa ba ta da zurfi

Mawallafi: Smartweigh– Nauyin Kai Mai Yawa

An yi amfani da tsarin bas ɗin CAN (CantrollerAreaNetwork), wato, tsarin bas ɗin tsarin yankin yankin sarrafawa, sosai a tsarin sarrafa masana'antu, kayayyakin lantarki da masana'antun firikwensin. Tsarin bas ɗin CAN yana da ƙa'idodi guda biyu na ƙasa, wato ISO11898 da ISO011519. Daga cikinsu, ISO11898 ƙayyadaddun sadarwa ne mai sauri, saurin sadarwa shine 125kbps ~ 1Mbps; mafi girman nisan sadarwa shine 40m/1Mbps, wanda ke cikin bas ɗin tsarin sarrafawa mai rufewa.

ISO011519 ƙayyadadden ƙayyadaddun sadarwa ne mai ƙarancin gudu tare da saurin sadarwa na 10kbps zuwa 125kbps. Nisa mafi girma na sadarwa shine 1Km/40kbps, wanda ke cikin tsarin bas ɗin aiki mai nauyin watsawa mai buɗewa-madauri. Matsakaicin adadin wuraren haɗi akan bas ɗin CAN shine 110 saboda haɗarin juriyar hulɗar bas ɗin tsarin da kuma juriya ga yanayin raƙuman bas ɗin tsarin.

Idan an shirya sigogin tashar jiragen ruwa ta ƙarshe ta karɓa da aikawa da kuma babban bit ɗin, za a iya kammala daidaita bayanai tsakanin wuraren karɓa da aikawa. Yana iya aika bayanai ta hanyoyi da dama kamar shirye-shiryen watsa shirye-shirye na maki-zuwa-maki, maki-zuwa-maki-da-maki da na duniya. Idan akwai wurin haɗi a kan bas ɗin CAN don aika bayanai, ana aika shi zuwa duk wuraren haɗi a Intanet a cikin tsarin saƙo.

Ga kowane wurin haɗi, ana karɓar bayanan bayanai ko an aika su gare shi ko a'a. Mai gano bayanai na bit 11 a farkon kowace rukunin tsarin saƙonni shine mai gano bayanai, wanda ke bayyana fifikon tsarin saƙon. Mai gano bayanai na tsarin saƙo yana da bambanci a cikin software ɗaya na tsarin, in ba haka ba sadarwa za ta yi kuskure; ainihin tsarin gaba ɗaya kamar haka: lokacin da tasha ke son aika bayanai zuwa wasu tashoshi, CPU na wannan tashar yana aika bayanan bayanai da kuma mai gano kansa. IC ɗin da aka haɗa na CAN na wannan gidan yanar gizon yana cikin yanayin shiri a gaba; lokacin da ya karɓi aikawa daga bas ɗin tsarin, zai zama yanayin tsarin saƙon turawa.

Haɗaɗɗen ICA na CAN yana aika bayanan ma'aunin siginar bayanai zuwa wani tsari na saƙo bisa ga ka'idar kuma yana aika shi zuwa motar tsarin. A wannan lokacin, sauran tashoshi a kan motar tsarin suna cikin yanayin karɓa, kuma kowace tasha a cikin yanayin karɓa tana amsawa ga saƙon da aka karɓa. Ana gwada tsarin rubutu, kuma idan aka aika wa kansa, ana gudanar da nazarin bayanan bayanai. Me zai faru idan akwai wasu bayanai da yawa da za a aika lokacin da motar tsarin kyauta ce? Da farko, ana karɓar tsarin sauran saƙon turawa kuma ana rarrabe shi. Duk wanda ke da fifiko mafi girma zai mamaye motar tsarin, sauran kuma za a yi watsi da su. Misali: tasha 1, tasha 2, tasha 3 suma suna tura tsarin saƙon zuwa motar tsarin: 011111, 0100110, 0100111; tsarin bas zai bambanta tsarin saƙon, lambobi biyu na farko iri ɗaya ne, sannan ya bambanta lamba ta uku, tashar 1 Bit na uku shine 1, tsarin saƙon zai yi watsi da shi, tasha 2 da tasha 3 kawai suka rage, inda rago shida na farko na waɗannan tashoshi biyu iri ɗaya ne, kuma rago na bakwai na tashar 3 shine 1, wanda shi ma za a yi watsi da shi, kuma a ƙarshe kawai Tsarin saƙon tashar 2 an adana shi, sauran tashoshi suna cikin yanayin karɓa, kuma ba abu ne mai sauƙi ba a tura tsarin saƙon kafin motar tsarin ta sake zama 'yanci.

Wannan ita ce hanyar ƙarfafawa ta na'urar auna manyan bayanai ta tsarin bas na sadarwa ta CAN;

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