Ua kūpaʻa ʻo Smart Weigh i ke kōkua ʻana i nā mea kūʻai aku e hoʻonui i ka huahana ma ke kumukūʻai hoʻemi.
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Ua kūpaʻa ʻo Smart Weigh i ke kōkua ʻana i nā mea kūʻai aku e hoʻonui i ka huahana ma ke kumukūʻai hoʻemi.
Mea kākau: Smartweigh–Mea Kaumaha Poʻo Nui
CAN (CantrollerAreaNetwork) pūnaewele kaʻa, ʻo ia hoʻi, ʻo ke kaʻa kaʻa kaʻa kaʻa kaʻa kaʻa kaʻa kaiapuni wahi, ua hoʻohana nui ʻia i nā ʻōnaehana hoʻokele ʻenehana, nā huahana uila a me nā ʻoihana sensor. ʻO ka protocol kaʻa kaʻa CAN he 2 mau kūlana aupuni, ʻo ia hoʻi ISO11898 a me ISO011519. I waena o lākou, ʻo ISO11898 kahi kikoʻī kamaʻilio kamaʻilio kiʻekiʻe, ʻo ka wikiwiki kamaʻilio ʻo 125kbps ~ 1Mbps; ʻO ka mamao kamaʻilio nui aku ʻo 40m/1Mbps, nona ia i ke kaʻa kaʻa kaʻa kaʻa.
ʻO ISO011519 kahi kikoʻī kamaʻilio haʻahaʻa me ka wikiwiki kamaʻilio o 10kbps a 125kbps. ʻO 1Km/40kbps ka mamao kamaʻilio nui aʻe, nona ka puʻupuʻu puʻupuʻu hāmama multihead weigher function system bus. ʻO ka helu kiʻekiʻe loa o nā wahi pili ma ka pahi CAN ʻo 110 ma muli o ka pōʻino o ke kūpaʻa pili kaʻa kaʻa ʻōnaehana a me ka pale ʻana i ka ʻōnaehana kaʻa kaʻa.
Inā kūpono ka loaʻa ʻana a me ka hoʻouna ʻana i ka hopena serial port baud rate a me nā bit main parameters, hiki ke hoʻopau ʻia ka hoʻonohonoho hoʻonohonoho ʻikepili o ka loaʻa a me ka hoʻouna ʻana. Hiki iā ia ke hoʻouna i ka ʻikepili multihead weigher e kekahi mau ʻano e like me ka point-to-point, point-to-multipoint a me nā papahana hoʻolaha honua. Ke loaʻa kahi wahi pili ma ka pahi CAN e hoʻouna i ka ʻikepili, hoʻouna ʻia ia i nā wahi pili āpau ma ka Pūnaewele ma ke ʻano memo.
No kēlā me kēia wahi pili, loaʻa ka ʻike ʻikepili me ka nānā ʻole i ka hoʻouna ʻia iā ia iho a i ʻole. ʻO ka 11-bit identifier ma ka hoʻomaka o kēlā me kēia hui o nā ʻano memo he mea hōʻike, e wehewehe ana i ka mea nui o ka ʻano memo. He ʻokoʻa ka mea hōʻailona memo ma ka polokalamu ʻōnaehana like, i ʻole e hewa ke kamaʻilio; ʻO ke kaʻina holoʻokoʻa maoli penei: inā makemake kahi kikowaena e hoʻouna i ka ʻikepili i nā kikowaena ʻē aʻe, hoʻouna ka CPU o kēia kikowaena i ka ʻike ʻikepili a me kāna ʻike ponoʻī. Aia ka CAN integrated ic o kēia pūnaewele i ke kūlana o ka hoʻomākaukau ma mua; i ka wā e loaʻa ai ka hoʻouna ʻana mai ke kaʻa kaʻa ʻōnaehana, lilo ia i ke kūlana o ka format memo pana.
Hoʻouna ka CAN integrated ic i ka ʻikepili multihead weigher ʻike i kekahi ʻano memo e like me ka protocol a hoʻouna iā ia i ka bus system. I kēia manawa, aia nā kikowaena ʻē aʻe ma ke kaʻa kaʻa ʻōnaehana i ka mokuʻāina e loaʻa ana, a ʻo kēlā me kēia kikowaena ma ka mokuʻāina e loaʻa ana e pane i ka memo i loaʻa. Hoʻāʻo ʻia ke ʻano kikokikona, a inā e hoʻouna ʻia iā ia iho, ua hoʻokō ʻia ka ʻikepili ʻikepili. He aha inā he nui nā ʻikepili ʻē aʻe e hoʻouna ʻia i ka wā manuahi ka ʻōnaehana? ʻO ka mea mua, ʻae ʻia a hoʻokaʻawale ʻia ke ʻano o ka memo pana ʻē aʻe. ʻO ka mea i loaʻa ka mea nui loa e noho i ke kaʻa kaʻa, a haʻalele ʻia nā mea ʻē aʻe. No ka laʻana: ke kahua 1, ke kahua 2, ke kahua 3 hoʻokomo pū i ke ʻano memo i ke kaʻa kaʻa pūnaewele: 011111, 0100110, 0100111; ʻO ke kaʻa kaʻa pūnaewele e hoʻokaʻawale i ke ʻano memo, ʻo nā huahelu mua ʻelua ua like, a laila e hoʻokaʻawale i ke kolu o ka huahelu, ke kikowaena 1 ʻO ke kolu o ka bit 1, e haʻalele ʻia ka ʻano memo, ʻo ke kikowaena 2 a me ke kahua 3 wale nō i koe, ma ʻo ia nā ʻāpana mua ʻeono o kēia mau kikowaena ʻelua, a ʻo ka bit hiku o ke kikowaena 3 ʻo ia ka 1, e haʻalele ʻia hoʻi, a ʻo ka hope wale nō ke mālama ʻia ke ʻano memo o ke kahua 2, aia nā kikowaena ʻē aʻe i ke kūlana e loaʻa ana, a ʻAʻole maʻalahi ke kaomi ʻana i ke ʻano memo ma mua o ka manuahi hou ʻana o ka bus system.
ʻO kēia ke kumu hoʻoikaika o ka ʻōnaehana bus multihead weigher o CAN kamaʻilio;.
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