Ethernet VS basi yachikhalidwe

1） 1TPCE = Imodzi (1) Yopotoka Peya 100 Megabit (C = zana = 100) Efaneti 1 Chingwe chopotoka 100MEthernet

2) RTPGE=Gigabit Ethernet Yachepetsedwa

3) GEPOF = Gigabit Efaneti Pamwamba pa Plastic Optical Fiber

4) 100BASE-T1 = 100 Megabit Baseband One Pair 100M Efaneti (1 yopotoka)

5) 1000BASE-T1 = 1 Gigabit Baseband One Pair 1000M Efaneti (1 yopotoka)

6) 1000BASE-RH = Gigabit Efaneti Pamwamba pa Plastic Optical Fiber

7) OPEN/OPEN Alliance = One Pair Ethernet Network Alliance

8） OABR = (OPEN Alliance) BroadR-Reach

Dzina loyambirira la 100BASE-T1, pomwe IEEE sinalowe nawo ndipo Open Alliance idayambitsa ukadaulo wa Broadcom's BroadR-Reach ku gawo lamagalimoto.

9) TSN - Time Sensitive Network

10) AVB - Ukadaulo wolumikizira ma Audio/Video

100BASE-T1 ndi chiyani

100BASE-T1 ndikuphatikiza kutengera ukadaulo wa Efaneti womwe ulipo.

1) IEEE 100BASE-TX

- Kulumikizana kwa Duplex simplex

- MLT-3 (kutumiza kwamitundu yambiri) -> 125Msps (zitsanzo miliyoni / sekondi) 65 ~ 80MHz bandwidth)

- Mawiri awiri opotoka - palibe kuwongolera zolakwika

- Palibe ukadaulo woletsa echo ndi crosstalk ku DSP

Chigamulo cha Feedback Equilibrium (DFE)

2) IEEE 1000BASE-T - kulankhulana kwathunthu kwapawiri

- 4D-PAM5 -> 125Msps (zitsanzo miliyoni pa sekondi iliyonse) 65~80MHz bandiwifi) - awiri awiri opotoka

- Sefa yopatsirana pang'ono poyankha

- Milingo yowonjezerapo yokonza zolakwika

- DSP ili ndi ukadaulo wa echo ndi crosstalk cancellation technology

Chigamulo cha Feedback Equilibrium (DFE)

3) IEEE 100BASE-T1 - kulumikizana kwathunthu kwapawiri - PAM3 - 66.7Msps (zitsanzo miliyoni pamphindi) 27MHz bandwidth - awiri opotoka amodzi

—— Tekinoloje yoletsa Echo —— Decision Feedback Equilibrium (DFE)

3. Efaneti VS basi chikhalidwe

3.1 Kulumikizana kwapaintaneti kotengera kusintha

1) Ma node onse pamabasi achikhalidwe amalumikizidwa ndi njira yomweyo yotumizira; mwachitsanzo, ma terminal angapo (ECUs) amatha kulumikizidwa ku basi imodzi ya CAN, ndipo ma siginecha amagetsi pa basi ya CAN amatha kukhudza ma terminal onse omwe amalumikizidwa ndi basi.

Nthawi zambiri, timatcha CAN ngati CAN Bus kapena CAN Network.

2) Efaneti ndi njira yolumikizira maukonde osinthika, pomwe ma node onse omaliza ayenera kulumikizidwa kudzera pakusintha ndipo zidziwitso zonse zotumizidwa ziyenera kutumizidwa ndi ma switch. osanena za basi ya Efaneti, koma netiweki ya Ethernet.

4. Kugwiritsa ntchito Efaneti pa bolodi

4.1 Mawonedwe azithunzi zamlengalenga - kulumikizana kothamanga kwambiri

1) Broadcom BroadR-Reach, 100 Mbit / s, duplex yonse, awiri opotoka - m'malo mwa ma waya okwera mtengo otetezedwa

- Njira ziwiri zoyankhulirana

2) Gwiritsani ntchito bandwidth yayikulu

3) Makanema ozikidwa pa MAC okhala ndi zofunikira zanthawi yake

4) Ntchito zowonjezera za ADAS (makamera owonjezera, millimeter-wave radar, laser radar, etc.) - kusamvana kwakukulu ndi mawonekedwe a chimango, kuponderezana kochepa

- Pamafunika kufala mlingo wa 1000Mbit/s ndi pamwamba

4.2 Efaneti monga msana wam'mbuyo wam'kati mwagalimoto

Basi yamtsogolo yamagalimoto idzalowa m'malo mwa basi ya CAN ndi Ethernet ngati network ya msana, ndipo ma subnets adzapangidwa ndi olamulira angapo. Mabasi olankhulana a FlexRay. Oyang'anira madera osiyanasiyana amalumikizidwa kudzera pa Efaneti yapamwamba kwambiri monga maukonde a msana, ndipo kusinthana kwa data kumachitika kudzera pazipata za Ethernet, motero kupanga mgwirizano wa zomangamanga za E / E zochokera kwa oyang'anira madambwe.

4.3 Pa bolodi Efaneti kwa kufala mphamvu

Mphamvu pa Ethernet (POE) ndi teknoloji yomwe imatha kutumiza deta pazingwe zopotoka pamene ikugwiritsira ntchito zipangizo zomaliza zolumikizidwa, kuthetsa kufunikira kwa zingwe zamagetsi zakunja kwa ma terminals ndikuchepetsa zovuta zamagetsi.

Makhalidwe akuluakulu amagetsi amtundu wamagetsi a POE ndi awa:

1) Magetsi ali pakati pa 44-57V, ndi mtengo wamba wa 48V.

2) Kuchuluka kovomerezeka kwapano ndi 550mA, ndipo pazipita zoyambira pano ndi 500mA.

3) Zomwe zimagwira ntchito pano ndi 10-350mA, ndipo kuzindikira kwachulukira ndi 350-500mA.

4) Pansi pazikhalidwe zosanyamula katundu, zomwe zikufunika kwambiri pano ndi 5mA.

5) Perekani magawo asanu a zopempha za mphamvu za PD (Power device) kuyambira 3.84 mpaka 12.95W, ndi kuchuluka kwa 13W.

4.4 Opanda zingwe ntchito pa bolodi Efaneti Opanda zingwe ntchito ndi mwayi wina pa bolodi Efaneti.WiFi ilinso ndi njira ina yogwiritsira ntchito magalimoto - WAVE (Wireless Access in Vehicle Environments) .Kukhazikitsidwa kwa Ethernet pa bolodi mosakayikira kudzakhala chothandizira kwambiri pakulimbikitsa kukhazikitsidwa kwa ukadaulo wolumikizirana opanda zingwe WAVE m'munda wamagalimoto, womwe umapereka maziko enieni. pakukhazikitsa mamapu omvera ndi makanema komanso matanthauzidwe apamwamba mukulankhulana kwenikweni, komanso kumapereka malo ambiri oganiza kuti agwiritse ntchito ukadaulo wa V2X.