ʻO Ethernet VS kaʻa kaʻa kuʻuna

1） 1TPCE = Hoʻokahi (1) Paʻa wili 100 Megabit (C = kenekulia = 100) Ethernet 1 Uea hui wili 100MEthernet

2) RTPGE = Hoʻemi ʻia ʻo Gigabit Ethernet Pair Twisted Pair

3) GEPOF = Gigabit Ethernet Ma luna o ka Plastic Optical Fiber

4) 100BASE-T1 = 100 Megabit Baseband Hoʻokahi Pair 100M Ethernet (1 hui wili)

5) 1000BASE-T1 = 1 Gigabit Baseband Hoʻokahi Pair 1000M Ethernet (1 hui wili)

6) 1000BASE-RH = Gigabit Ethernet Ma luna o ka Plastic Optical Fiber

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

8） OABR = (OPEN Alliance) BroadR-Reach

He inoa mua no 100BASE-T1, i ka wā i komo ʻole ai ka IEEE a ua hoʻokomo ka Open Alliance i ka ʻenehana BroadR-Reach o Broadcom i ka ʻoihana kaʻa.

9) TSN - Pūnaewele Manawa Manawa

10) AVB - ʻenehana hoʻopili leo / wikiō

He aha ka 100BASE-T1

ʻO 100BASE-T1 kahi hoʻohui e pili ana i ka ʻenehana Ethernet i loaʻa.

1） IEEE 100BASE-TX

- Kūkākūkā Duplex simplex

- MLT-3 (ka hoʻouna ʻana i nā pae he nui) – > 125Msps (miliona mau laʻana/kekona) 65~80MHz bandwidth)

- ʻElua mau hui wili - ʻaʻohe hoʻoponopono hoʻoponopono hewa

- ʻAʻohe echo a me ka ʻenehana hoʻopau crosstalk ma DSP

Hoʻoholo Manaʻo Kaulike (DFE)

2) IEEE 1000BASE-T - kamaʻilio duplex piha

- 4D-PAM5 – > 125Msps (miliona mau laʻana i kēlā me kēia kekona) 65~80MHz bandwidth) – ʻehā mau pālua wili.

- kānana hoʻoili pane ʻāpana

- Nā pae hou o ka hoʻoponopono hoʻoponopono hewa

- Loaʻa iā DSP ka ʻenehana hoʻopau i ka leo a me ka crosstalk

Hoʻoholo Manaʻo Kaulike (DFE)

3) IEEE 100BASE-T1 - kamaʻilio duplex piha - PAM3 - 66.7Msps (miliona mau laʻana i kekona) 27MHz bandwidth - hoʻokahi pālua wili.

—— ʻenehana hoʻopau ʻana i ka leo —— Hoʻoholo Manaʻo Manaʻo Equilibrium (DFE)

3. Ethernet VS kaʻa kaʻa kuʻuna

3.1 Kūkākūkā pūnaewele hoʻololi

1) Hoʻopili ʻia nā node a pau ma ke kaʻa kaʻa kuʻuna i ka mea hoʻouna hoʻokahi; no ka laʻana, hiki ke hoʻopili ʻia nā node terminal he nui (ECUs) i kahi pahi CAN hoʻokahi, a hiki i nā hōʻailona uila ma ke kaʻa CAN ke hoʻopili i nā pahu āpau i pili i ke kaʻa.

Ma ka laulā, kapa mākou iā CAN e like me CAN Bus a i ʻole CAN Network.

2) ʻO Ethernet kahi ʻano kamaʻilio pūnaewele i hoʻololi ʻia, kahi e hoʻopili ʻia ai nā nodes terminal āpau ma o nā hoʻololi a pono e hoʻouna ʻia nā ʻike a pau i hoʻouna ʻia e nā switch. ʻaʻole e pili i ka pahi Ethernet, akā i ka pūnaewele Ethernet.

4. Hoʻohana i ka Ethernet ma luna o ka moku

4.1 Nānā kiʻi lewa - pili kiʻekiʻe

1) Broadcom BroadR-Reach, 100 Mbit / s, piha duplex, hui wili - pani i nā mea hoʻopaʻa uea pale makamae.

- Kūkākūkā ʻelua ala

2) E hoʻohana i ka bandwidth kiʻekiʻe

3) ʻO ka wikiō wikiō e pili ana i ka MAC me nā koi manawa koʻikoʻi

4) Nā hana ADAS i hoʻonui ʻia (nā kāmela hou, millimeter-wave radar, laser radar, a me nā mea ʻē aʻe) - ka hoʻonā kiʻekiʻe a me ke kiʻekiʻe kiʻekiʻe, ka liʻiliʻi o ka compression

- Koi i ka helu hoʻouna o 1000Mbit/s a i luna

4.2 Ethernet ʻo ia ka ʻupena iwi kuamoʻo o ka loko kaʻa

ʻO ka kaʻa kaʻa kaʻa e hiki mai ana e pani i ke kaʻa CAN me Ethernet ma ke ʻano he pūnaewele iwi kuamoʻo, a e haku ʻia nā subnets i kekahi mau mana domain. ʻO nā kaʻa kaʻa kamaʻilio FlexRay. Hoʻopili ʻia nā mea hoʻokele domain ʻokoʻa ma o Ethernet ʻoi aku ka hana ma ke ʻano he pūnaewele iwi kuamoʻo, a ʻike ʻia ka hoʻololi ʻikepili ma o nā ʻīpuka Ethernet, no laila e hana pū ana i kahi hoʻolālā E/E e pili ana i nā mea hoʻokele domain.

4.3 Ma luna o ka Ethernet no ka lawe mana

ʻO ka Power over Ethernet (POE) kahi ʻenehana hiki ke hoʻouna i ka ʻikepili ma luna o nā kaula wili i ka manawa like me ka hoʻohana ʻana i nā mea hoʻopau i hoʻopili ʻia, e hoʻopau ana i ka pono o nā kaula mana o waho no nā hopena a hoʻemi i ka paʻakikī o ka lako mana.

ʻO nā hiʻohiʻona lako mana nui o ka ʻōnaehana lako mana maʻamau POE:

1) Aia ka volta ma waena o 44-57V, me ka waiwai maʻamau o 48V.

2) ʻO 550mA ka palena kiʻekiʻe i ʻae ʻia, a ʻo 500mA ka nui o ka hoʻomaka ʻana.

3) ʻO 10-350mA ka hana maʻamau, a ʻo 350-500mA ka overload detection current.

4) Ma lalo o nā kūlana haʻahaʻa ʻole, ʻo 5mA ka nui o ka noi i kēia manawa.

5) Hāʻawi i ʻelima mau pae o nā noi mana no nā polokalamu PD (Power device) mai 3.84 a i 12.95W, me ka nui o 13W.

4.4 He pono ʻē aʻe ka hana ʻole o ka Ethernet ma luna o ka papa.Loaʻa i ka WiFi kekahi ʻano ʻokoʻa no ka hoʻohana ʻana i nā kaʻa - WAVE (Wireless Access in Vehicle Environments). no ka hoʻokō 'ana i ka leo a me ka wikiō a me ka kiʻekiʻe-definition palapala 'āina i ka manawa maoli kamaʻilio, a me ka hoʻolako 'ana i oi noʻonoʻo wahi no ka noi o ka V2X 'enehana.