Ethernet VS ibhasi yendabuko

1） 1TPCE = Ipheya Elodwa (1) Esontekile 100 Megabit (C = ikhulu = 100) I-Ethernet 1 Intambo epheya ephothiweyo engu-100MEthernet

2) RTPGE=I-Gigabit Ethernet Eyehlisiwe Esontekile

3) I-GEPOF = I-Gigabit Ethernet Ngaphezulu Kwe-Plastic Optical Fiber

4) 100BASE-T1 = 100 Megabit Baseband One Pair 100M Ethernet (1 ipheya esontiwe)

5) 1000BASE-T1 = 1 Gigabit Baseband One Pair 1000M Ethernet (1 ipheya esontiwe)

6) 1000BASE-RH = I-Gigabit Ethernet Ngaphezulu Kwe-Plastic Optical Fiber

7) VULA/VULA I-Alliance = I-One Pair Ethernet Network Alliance

8） OABR = (OPEN Alliance) BroadR-Reach

Igama lokuqala le-100BASE-T1, lapho i-IEEE yayingabandakanyekanga futhi i-Open Alliance yethula ubuchwepheshe be-Broadcom's BroadR-Reach emkhakheni wezimoto.

9) I-TSN - Inethiwekhi Ezwela Isikhathi

I-10) I-AVB - Ubuchwepheshe bokubhula i-Audio/Video

Iyini i-100BASE-T1

I-100BASE-T1 iwukuhlanganiswa okusekelwe kubuchwepheshe obukhona be-Ethernet.

1) IEEE 100BASE-TX

- Ukuxhumana kwe-Duplex simplex

- MLT-3 (ukudluliselwa kwamazinga amaningi) - > 125Msps (amasampuli ayisigidi/isekhondi) 65~80MHz umkhawulokudonsa)

- Amapheya amabili asontekile - akukho phutha lokulungisa ikhodi

- Abukho ubuchwepheshe bokukhansela i-echo kanye ne-crosstalk ku-DSP

I-Decision Feed Equilibrium (DFE)

I-2) IEEE 1000BASE-T - ukuxhumana okugcwele kwe-duplex

- 4D-PAM5 – > 125Msps (amasampula ayisigidi ngomzuzwana) 65~80MHz umkhawulokudonsa) – amapheya amane asontiwe

- Isihlungi sokudlulisela impendulo engaphelele

- Amazinga engeziwe wokulungisa iphutha lokubhala ikhodi

- I-DSP inobuchwepheshe bokukhansela i-echo kanye ne-crosstalk

I-Decision Feed Equilibrium (DFE)

3) IEEE 100BASE-T1 - ukuxhumana okugcwele kwe-duplex - PAM3 - 66.7Msps (amasampuli ayisigidi ngomzuzwana) 27MHz umkhawulokudonsa - ipheya eyodwa esontiwe

—— Ubuchwepheshe bokukhansela i-Echo —— I-Decision Feedback Equilibrium (DFE)

3. Ethernet VS ibhasi yendabuko

3.1 Ukuxhumana kwenethiwekhi okusekelwe ekushintsheni

1) Wonke ama-node ebhasini lendabuko axhunywe endaweni efanayo yokuthutha; isibonelo, ama-terminal node amaningi (ECUs) angaxhunywa ebhasini elilodwa le-CAN, futhi amasignali kagesi ebhasini le-CAN angathinta zonke izikhumulo ezixhunywe ebhasini.

Ngokuvamile, sibiza i-CAN njenge-CAN Bus noma i-CAN Network.

2) I-Ethernet iyindlela yokuxhumana yenethiwekhi eshintshiwe, lapho wonke ama-terminal node kufanele axhunywe ngokushintsha futhi lonke ulwazi oludlulisiwe kufanele ludluliselwe ngokushintsha.Ekuxhumaneni kwenethiwekhi okushintshiwe, ikhebula lenethiwekhi elilodwa lingaxhuma kuphela izimbobo ezimbili ngaphandle kwe-branching.Ngakho-ke, thina ngokuvamile ungabhekiseli ebhasini le-Ethernet, kodwa kunethiwekhi ye-Ethernet.

4. Ukusetshenziswa kwe-Ethernet ebhodini

4.1 Ukubuka kwesithombe esisemoyeni – ukuxhumana okunesivinini esikhulu

1) I-Broadcom BroadR-Reach, 100 Mbit / s, i-duplex egcwele, ipheya esontiwe - ithatha indawo yamahhanisi ezintambo ezivikelwe ezibizayo

- Ukuxhumana okubili

2) Sebenzisa i-bandwidth ephezulu

3) Ukusakazwa kwevidiyo okususelwe ku-MAC okunezidingo eziqinile zesikhathi

4) Imisebenzi ye-ADAS ethuthukisiwe (amakhamera engeziwe, i-radar yamagagasi emilimitha, irada ye-laser, njll.) - ukulungiswa okuphezulu nezinga lozimele, ukucindezelwa okuncane

- Idinga izinga lokudlulisela lika-1000Mbit/s nangaphezulu

4.2 I-Ethernet njengenethiwekhi yomgogodla wengaphakathi lemoto

Ibhasi lezimoto lesikhathi esizayo lizongena esikhundleni sebhasi le-CAN nge-Ethernet njengenethiwekhi yomgogodla, futhi ama-subnet azokwakhiwa abalawuli besizinda abambalwa.Isizinda esisebenzayo ngasinye sinikezwa isilawuli sesizinda, futhi ukuxhunywa kwezinhlelo ngaphakathi kwesizinda ngasinye kusengasebenzisa i-CAN futhi Amabhasi okuxhumana e-FlexRay.Abalawuli besizinda abahlukene baxhunywe nge-Ethernet esebenza kahle kakhulu njengenethiwekhi yomgogodla, futhi ukushintshaniswa kwedatha kwenziwa ngamasango e-Ethernet, ngaleyo ndlela kwakha ngokuhlanganyela ukwakheka kwe-E/E okusekelwe kubalawuli besizinda.

4.3 I-Ethernet esebhodini yokudlulisa amandla

Amandla phezu kwe-Ethernet (POE) ubuchwepheshe obungakwazi ukudlulisa idatha ngezintambo ezisontekile kuyilapho ngesikhathi esisodwa kunika amandla amadivaysi okuphela axhunyiwe, okuqeda isidingo sezintambo zamandla zangaphandle zamatheminali nokunciphisa inkimbinkimbi yokuphakelwa kwamandla.

Izici eziyinhloko zokuphakelwa kwamandla zohlelo lwe-POE olujwayelekile lokuphakelwa kwamandla yilezi:

1) I-voltage iphakathi kuka-44-57V, enenani elijwayelekile lama-48V.

I-2) Umkhawulo wamanje ovunyelwe ngu-550mA, kanti umkhawulo wokuqala wamanje ngu-500mA.

3) Ukusebenza okujwayelekile kwamanje ngu-10-350mA, futhi ukutholwa kokugcwala ngokweqile kungu-350-500mA.

4) Ngaphansi kwezimo zokungalayishi, inani eliphezulu lesidingo samanje ngu-5mA.

5) Nikeza amazinga amahlanu ezicelo zamandla kumadivayisi e-PD (Idivayisi Yamandla) asukela ku-3.84 kuya ku-12.95W, anomkhawulo ongu-13W.

4.4 Ukusebenza okungenantambo kwe-on-board Ethernet Wireless function kungenye inzuzo ye-on-board Ethernet.I-WiFi iphinde ibe nokwehlukile kokusetshenziswa kwezimoto - WAVE (Ukufinyelela Okungenantambo Ezimoweni Zezimoto). Ukwethulwa kwe-Ethernet ebhodini ngokungangabazeki kuzoba umgqugquzeli ongcono kakhulu wokuphromotha ukwethulwa kobuchwepheshe bokuxhumana obungenantambo be-WAVE emkhakheni wezimoto, ohlinzeka ngesisekelo esibonakalayo. ukuze kusetshenziswe amamephu alalelwayo nevidiyo kanye nencazelo ephezulu ekuxhumaneni kwesikhathi sangempela, futhi inikeza isikhala esiningi sokucabanga sokusetshenziswa kobuchwepheshe be-V2X.