Ụgbọ ala ọdịnala Ethernet VS

1) 1TPCE = Otu (1) Twisted Pair 100 Megabit (C = narị afọ = 100) Ethernet 1 Twisted pair cable 100MEthernet

2) RTPGE=Ewetaghị ihe abụọ gbagọrọ agbagọ Gigabit Ethernet

3) GEPOF = Gigabit Ethernet n'elu Plastic Optical Fiber

4) 100BASE-T1 = 100 Megabit Baseband One Pair 100M Ethernet (1 gbagọrọ agbagọ)

5) 1000BASE-T1 = 1 Gigabit Baseband One Pair 1000M Ethernet (1 ụzọ gbagọrọ agbagọ)

6) 1000BASE-RH = Gigabit Ethernet Over Plastic Optical Fiber

7) OPEN/Oghere Alliance = Otu Njikọ Ethernet Network Alliance

8) OABR = (OPEN Alliance) BroadR-Reach

Aha mbụ maka 100BASE-T1, mgbe IEEE na-etinyeghị aka na Open Alliance webatara Broadcom's BroadR-Reach technology na mpaghara ụgbọ ala.

9) TSN - netwọk nwere mmetụta oge

10) AVB – Audio/Video bridgeing technology

Kedu ihe bụ 100BASE-T1

100BASE-T1 bụ njikọta dabere na teknụzụ Ethernet dị adị.

1) IEEE 100BASE-TX

- Duplex simplex nkwukọrịta

MLT-3 (nfefe ọtụtụ ọkwa) -> 125Msps (nde sample / nke abụọ) 65 ~ 80MHz bandwit)

- Ụzọ abụọ gbagọrọ agbagọ - enweghị koodu mgbazi mperi

- Enweghị teknụzụ kagbuo nkwupụta okwu na crosstalk na DSP

Nzaghachi nzaghachi mkpebi (DFE)

2) IEEE 1000BASE-T - nkwurịta okwu duplex zuru ezu

- 4D-PAM5 -> 125Msps (nde nlele kwa nkeji) 65 ~ 80MHz bandwit) - ụzọ anọ gbagọrọ agbagọ

- Nzaghachi nzacha nzacha

- Ọkwa ndị ọzọ nke ndozi njehie

- DSP nwere nka nka nkagbu na crosstalk

Nzaghachi nzaghachi mkpebi (DFE)

3) IEEE 100BASE-T1 - nkwurịta okwu duplex zuru ezu - PAM3 - 66.7Msps (nde nlele kwa nkeji) bandwit 27MHz - otu ụzọ gbagọrọ agbagọ

—— Teknụzụ kagbuo Echo —— Nzaghachi nzaghachi mkpebi (DFE)

3. Ethernet VS ụgbọ ala ọdịnala

3.1 Nkwukọrịta netwọkụ dabere na mgbanwe

1) A na-ejikọta ọnụ niile na ụgbọ ala ọdịnala na otu nnyefe nnyefe; dịka ọmụmaatụ, ọtụtụ ọnụ ọnụ ọnụ ọnụ (ECU) nwere ike itinye n'otu ụgbọ ala CAN, na akara ọkụ eletrik na ụgbọ ala CAN nwere ike imetụta njedebe niile jikọtara na ụgbọ ala.

N'ozuzu, anyị na-akpọ CAN dị ka CAN Bus ma ọ bụ CAN Network.

2) Ethernet bụ usoro nkwurịta okwu netwọk gbanwere, ebe a ga-ejikọta ọnụ ọnụ ọnụ niile site na switches na ozi niile a na-ebufe ga-ebufe site na switches. Na nkwurịta okwu netwọk gbanwere, otu eriri netwọk nwere ike jikọọ naanị ọdụ ụgbọ mmiri abụọ na-enweghị alaka. Ya mere, anyị n'ozuzu ya. anaghị ezo aka na ụgbọ ala Ethernet, kama na netwọk Ethernet.

4. Ngwa nke na-board Ethernet

4.1 Nlele onyonyo ikuku - njikọ dị elu

1) Broadcom BroadR-Reach, 100 Mbit / s, duplex zuru oke, ụzọ gbagọrọ agbagọ - na-edochi eriri waya mkpuchi dị oke ọnụ.

- nkwukọrịta ụzọ abụọ

2) Jiri nnukwu bandwit

3) gụgharia vidiyo sitere na MAC nwere oge siri ike chọrọ

4) Ọrụ ADAS kwalitere (igwefoto ndị ọzọ, radar milimita, radar laser, wdg) - mkpebi dị elu na ọnụego etiti, obere mkpakọ

- Achọrọ a nnyefe ọnụego nke 1000Mbit / s na n'elu

4.2 Ethernet dị ka netwọk azụ nke ime ụgbọ ala

Ụgbọ ala ụgbọ ala ga-eme n'ọdịnihu ga-eji Ethernet dochie ụgbọ ala CAN dị ka netwọk azụ azụ, na subnets ga-abụ nke ọtụtụ ndị na-ahụ maka ngalaba. FlexRay nkwurịta okwu buses. A na-ejikọta ndị na-ahụ maka ngalaba dị iche iche site na Ethernet arụmọrụ dị elu dị ka netwọk azụ azụ, na mgbanwe data na-enweta site na ọnụ ụzọ Ethernet, si otú a na-ejikọta ọnụ na-emepụta E / E architecture dabere na ngalaba nchịkwa.

4.3 On-board Ethernet maka nnyefe ike

Ike n'elu Ethernet (POE) bụ nkà na ụzụ nke nwere ike ịnyefe data n'elu eriri abụọ gbagọrọ agbagọ mgbe ị na-agbanye ngwaọrụ njedebe ejikọrọ n'otu oge, na-ewepụ mkpa maka eriri ọkụ dị n'èzí maka njedebe na ibelata mgbagwoju anya nke ike ọkụ.

Isi njirimara ọkọnọ ike nke sistemu ọkụ ọkụ ọkọlọtọ POE bụ:

1) voltaji dị n'etiti 44-57V, na-ahụkarị uru nke 48V.

2) Oke kachasị mma ugbu a bụ 550mA, na mmalite kachasị ugbu a bụ 500mA.

3) Ụdị ugbu a na-arụ ọrụ bụ 10-350mA, na nrịbama nke ugbu a bụ 350-500mA.

4) N'okpuru ọnọdụ enweghị ibu, ihe kacha achọ ugbu a bụ 5mA.

5) Nye ọkwa ise nke arịrịọ ike maka ngwaọrụ PD (Power Device) sitere na 3.84 ruo 12.95W, yana oke 13W.

4.4 Ikuku ọrụ nke on-board Ethernet Ikuku ọrụ bụ ọzọ uru nke na-board Ethernet.WiFi nwekwara ihe dị iche iche maka iji ụgbọ ala - WAVE (Wireless Access in Vehicle Environments) .Mwebata nke Ethernet na-arụ ọrụ ga-abụ ihe ịrụ ụka adịghị ya na ọ ga-abụ ihe kacha mma maka ịkwalite mmalite nke teknụzụ nkwurịta okwu ikuku WAVE n'ime ugbo ala, nke na-enye ntọala anụ ahụ. maka mmejuputa ọdịyo na vidiyo na maapụ nkọwa dị elu na nzikọrịta ozi oge, ma na-enyekwa ohere ichetụ n'echiche maka ngwa nke teknụzụ V2X.