Yav dhau los, qhov teeb meem loj tshaj plaws rau Ethernet nkag mus rau hauv qhov chaw nres tsheb yog qhov tsis paub tseeb ntawm Ethernet, vim tias Ethernet siv CSMA / CD nruab nrab nkag tswj raws tu qauv hauv cov ntaub ntawv txuas txheej. Cov txheej txheem no muaj txiaj ntsig zoo nyob rau hauv cov ntaub ntawv ntawm lub teeb, tab sis nyob rau hauv cov ntaub ntawv ntawm hnyav load, vim hais tias raws tu qauv yuav ncua rau ib tug random lub sij hawm thiab rov xa rov qab tom qab muaj teeb meem. Qhov no cuam tshuam rau kev ua haujlwm ntawm cov ntaub ntawv hauv lub sijhawm. Qhov no yog qhov tsis txaus ntseeg rau kev tswj hwm kev lag luam nrog cov kev cai nruj heev hauv lub sijhawm, thiab cov cuab yeej siv los ntawm Ethernet, suav nrog cov connectors, hubs, keyboards thiab cables, yog tsim los rau cov ntawv thov hauv chaw ua haujlwm thiab tsis ua raws li qhov yuav tsum tau muaj ntawm qhov hnyav ib puag ncig ntawm kev lag luam. qhov chaw. Tsis tas li ntawd, Ethernet muaj kev ua haujlwm tsis zoo los tiv thaiv kev cuam tshuam, tsis muaj kev nyab xeeb tseem ceeb, thiab tsis tuaj yeem muab lub zog rau cov twj paj nruag. Txawm li cas los xij, nrog rau kev txhim kho thev naus laus zis, 100M Ethernet tau dhau los ua lub ntsiab lus tseem ceeb, kaum gigabit Ethernet kuj tau muab tso rau hauv kev ua haujlwm tiag tiag, thiab kev txhim kho ntawm kev hloov pauv Ethernet thev naus laus zis tau daws qhov teeb meem ntawm qhov loj randomness ntawm lub sijhawm sib kis los ntawm Ethernet kev sib tsoo. Thiab Ethernet cov khoom lag luam tseem tab tom tsim cov khoom siv uas ua tau raws li cov kev cai ntawm kev lag luam ua kom tau raws li qhov yuav tsum tau ua. Nyob rau tib lub sijhawm, nws muaj cov yam ntxwv hauv qab no:
1, Ethernet yog lub tshuab computer siv ntau tshaj plaws, los ntawm ntau yam kev txhawb nqa. Yuav luag txhua yam lus programming txhawb Ethernet daim ntawv thov kev txhim kho, xws li Java, Visual C ntxiv rau, Visual Basic, thiab lwm yam. Cov lus programming no tau siv dav thiab muaj txiaj ntsig zoo los ntawm software tsim tawm, yog li lawv muaj kev cia siab rau kev txhim kho. Yog li ntawd, yog tias Ethernet siv los ua fieldbus, nws tuaj yeem ua kom ntseeg tau tias ntau yam kev txhim kho cov cuab yeej thiab kev loj hlob ib puag ncig tuaj yeem xaiv.
2. Tus nqi qis. Vim tias Ethernet yog qhov siv dav tshaj plaws, nws muaj txiaj ntsig zoo thiab tau txais kev txhawb nqa los ntawm kev txhim kho kho vajtse thiab cov chaw tsim khoom. Muaj ntau yam khoom siv kho vajtse rau cov neeg siv xaiv los ntawm, thiab vim yog daim ntawv thov dav, kho vajtse tus nqi kuj tsawg. Tam sim no, tus nqi ntawm Ethernet network adapter tsuas yog ib feem kaum ntawm Profibus, FF thiab lwm cov tsheb thauj mus los, thiab nrog kev txhim kho ntawm kev siv tshuab hluav taws xob sib txuas, nws tus nqi yuav txo qis ntxiv [34].
3. Kev sib txuas lus siab. Tam sim no, 100M ceev Ethernet tau siv dav, 1000M Ethernet thev naus laus zis maj mam loj hlob, 10 gigabit Ethernet tau muab tso rau hauv kev siv, nws tus nqi nrawm dua li qhov tam sim no fieldbus. Ethernet tuaj yeem ua tau raws li qhov xav tau siab dua rau bandwidth.
4. nplua nuj software thiab khoom siv kho vajtse. Vim tias Ethernet tau siv ntau xyoo, tib neeg muaj kev paub ntau hauv kev tsim thiab siv Ethernet, thiab paub zoo txog nws cov thev naus laus zis. Ib qho loj ntawm cov khoom siv software thiab kev tsim qauv tuaj yeem txo qhov kev loj hlob thiab kev cob qhia cov nqi ntawm lub kaw lus, uas tuaj yeem txo tus nqi tag nrho ntawm lub kaw lus, thiab ua rau kev txhim kho thiab kev txhawb nqa ntawm lub kaw lus zoo heev.
5. Muaj peev xwm loj rau kev txhim kho kom ruaj khov. Vim yog daim ntawv thov dav ntawm Ethernet, nws txoj kev loj hlob tau dav muaj nuj nqis thiab ntau ntawm kev nqis peev. Thiab, nyob rau hauv lub caij nyoog ntawm cov ntaub ntawv hloov, kev ciaj sia thiab kev loj hlob ntawm cov lag luam mus rau ib tug loj npaum li cas nyob ntawm ib tug ceev thiab zoo kev sib txuas lus tswj network, txoj kev loj hlob ntawm cov ntaub ntawv technology thiab kev sib txuas lus technology yuav ceev, ntau mature, yog li xyuas kom meej tias Ethernet. thev naus laus zis txuas ntxiv txhim kho mus tom ntej.
Yog li ntawd, yog hais tias lub teb chaws tswj kev lag luam siv Ethernet raws li kev sib txuas lus network platform ntawm teb cov khoom siv, fieldbus thev naus laus zis tuaj yeem raug zam los ntawm kev txhim kho lub computer network technology sab nraum lub ntsiab, kom fieldbus technology thiab lwm yam network technology los txhawb ib leeg, kev loj hlob, thiab xyuas kom muaj kev txhim kho kom ruaj khov ntawm kev siv thev naus laus zis, hais txog kev txhim kho thev naus laus zis yam tsis muaj kev tshawb fawb sib txawv. Nyob rau hauv lub neej yav tom ntej, industrial tswj network yog khi los tsim kom muaj kev sib tshuam kev lag luam.
