Kasi ndondomeko ya kuyowoyeskana ya data ni vichi?

Kasi ndondomeko ya kuyowoyeskana ya data ni vichi?

CAN CAN kuyowoyeskana

Basi ya Controller Area Network (CAN) ni basi yakudumbiskana yakulondezganako iyo yikupangika kuti yigwiriskike nchito pa mapulogalamu ghaunenesko gha - gha nyengo. Iwo ungatumizga vimanyikwiro pa viŵiri vyakupotoloka, khebo ya coaxial, panji fiber ya optical. Chifukwa chakuti likugwira ntchito makora chomene, kugomezgeka kwapachanya, na mikhaliro yiwemi chomene ya - nyengo, CAN yazgoka yimoza mwa mababu ghakuzomerezgeka chomene pa charu chose.

Pasono, kuyowoyeskana kwa CAN ndiyo nthowa yakudumbiskana chomene ya ndondomeko zakulongozgera mabatire (BMS). Iwo ŵakukhozgeka chomene ndipo ŵakugwiriskirika nchito chomene mu ndondomeko zakulongozgera magalimoto gha magesi gha mu charu ichi na pa charu chose, ndiposo mu vigaŵa vyakwenelera vya kuyowoyeskana kwa data ya BMS ku China na ku vyaru vinyake. Mapulogalamu ghanyake gha basi nga ni RS232 na RS485 ghakugwiriskirikaso nchito mu nthowa zinyake zakudumbiskana za mukati za ndondomeko zakulongozgera mabatire.

Mumulayini wa FlexRay

Pakuti ŵanthu ŵakupanga tekinoloje ya magesi ya galimoto, mayankho gha CAN gha chikhalidwe ghakusankhikaso yayi kuti ghamazge masuzgo ghakudumbiskana gha magalimoto. Mu Seputembala 2000, BMW na DaimlerChrysler, pamoza na Philips na Motorola, ŵakakhazikiska FlexRay Consortium kuti ŵapange ndondomeko yiphya yakudumbiskana na kuyikhozga nga ni ndondomeko yakumanyikwa ya nkhongono zapachanya, chassis, na X-by -} yawire systems.

FlexRay yikupereka vinthu vinandi vyakupambanapambana ivyo vikuchitika mu -vikwiba vyakudumbiskana (nga ni CAN) vilije, kusazgapo:

(1) Mlingo wa Kutumiza ku Ŵanthu ŴapachanyaNthowa yiliyose ya FlexRay yikupereka bandwidth ya 10 Mbit / s. FlexRay ingagwira ntchito nga ni dongosolo limoza la-swannel (kuyana waka na CAN panji LIN networks) panji nga ni ndondomeko ya 20 Mbit / s-20 nyengo yitali kuluska liwiro lakukwana la CAN networks.

(2) Nyengo yakukoleranaNthowa yakunjilirapo iyo yikugwiriskirika nchito mu Flencley yikuthemba pa nyengo yakukolerana ya pa caru cose. Pa nyengo iyi base yikuŵikika na synchronized na protocol ndipo yikupangika ku chigaŵa cha pulogiramu. Kulongosora kwa nyengo kuli pakati pa 0.5 μs na 10 μs (kanandi 1-2 μs).

(3) KususkanaKudumbiskana mu FlexRay kukuchitika mu kulutilira kuwerezgapo nyengo zakudumbiskana, apo uthenga wakupambanapambana ukugaŵirika malo ghakukhazikika (maselo) mukati mwa mzere. Pa chifukwa ichi, uyo wakupokera wakumanya pambere uthenga uzamufika nadi. Kupatuka kwa nyengo kwa nyengo za kufika kwa uthenga nkhwakucepa comene ndipo kukusimikizgika.

(4) Kuzizima kwakukwanaNkhongono zakumanyira viheni na kukhuŵazga - tolerant ntchito ni vigaŵa vyakuzirwa vyakupanga mu FlexRay.

• Basi ya FlexRay yikugwiriskira ncito Cyclic Redundancy Check (CRC) kuti yimanye ivyo vikubudika pakudumbiskana.
• Kwizira mu kulumikizgana kwaŵiri {00} kukadumbiskana, FlexRay yikuperekaso ndalama.
• Pakugwiriskira ncito nyenyezi topology (panji kuphatikizapo topologies), FlexRay yingamazga mwakukwana ivyo vikukhumbikwa pa ivyo vikukhumbikwa -kulekelera, kusazgapo - mfundo -} ya - failure kuchepeska.

(5) ukusinthasinthaKusintha kwakusintha kukaŵa kwakwamba pa nyengo yakukura kwa FlexRay protocol ndipo kukuwoneka mu vigaŵa ivi: ‐ Kukhozgera vigaŵa vinandi vya network (basi, nyenyezi, hybrid, na vinyake); Utali wa uthenga wakukhozgeka: utali wa data ya malipiro ungapangika mwakuyana na ivyo vikukhumbikwa pa pulogiramu yakulaŵilira; ③ Para mukugwiliskira ntchito dual -}swannel topology, nthowa ziŵiri izi zingagwiliskirika ntchito kuti zisazgireko bandwidth panji kutumizgira mauthenga ghambura kukhumbikwa; ④ Utali wa vigaŵa vyakukhazikika na vyakusintha mukati mwa mzere wakudumbiskana ungasinthika mwakuyana na ivyo vikukhumbikwa pa pulogiramu.

Ethernet ya mafakitale

Industrial Ethernet ni netiweki yakujulika chomene, yakujulika chomene. Vipangizo vyakufuma ku ŵakupanga ŵakupambanapambana ŵangakwaniska mwambura kusuzga kukolerana mwa kulondezga ndondomeko za netiweki zakumanyikwa. Iwo ukupereka viŵelengero vyakudumbiskana vyapachanya: Ethernet ya luwiro na liwiro la 10 Mbit / s na 100 Mbit / s yazomerezgeka chomene, luso la Gigabit Ethernet lakura, ndipo 10 Gbit / s Ethernet yili pasi pa kafukufuku wakugwira ntchito na kupanga. Viŵelengero ivi ni vyapachanya chomene kuluska vya mababu gha mu munda agho ghalipo sono.

Kweni, Ethernet wa mafakitale wachali na masuzgo ghanandi, chomenechomene kusazgapo:

• Real{{- kugwira ntchito
• Kusintha na kugomezgeka mu malo ghakofya gha mafakitale
• Kusangika kwa kugwiriskira ncito- yaprotops yakukwana kuti paŵe kulaŵilira kwa mafakitale .

Pakuti ŵanthu ŵakulutilira kuluta panthazi kwa tekinoloje ya Ethernet, nkhani izo zili pacanya apa zikumara pachokopachoko.