| 词条 | Draft:Diagnostics over IP (DoIP) |
| 释义 |
DoIP in the OSI Layer Model[1][2]DoIP serves the first 4 layers of OSI Model, and on top of that, can either have UDS (ISO 14229), WWH-OBD (ISO 27145) or SAE J1939-73 to name a few of them. UDS and WWH-OBD (ISO 27145) is located on OSI layer 7, the application layer. SAE J1939-73 is on OSI layer 6, the presentation layer. Diagnostics over Internet Protocol runs over the TCP / IP protocol stack. TCP / UDP on OSI layer 4 is used as the transport protocol. IP serves as a switching protocol on OSI layer 3. Ethernet is the protocol that is used on the data link layer on OSI layer 2. The physical medium is a 100BASE-TX twisted-pair copper cable on OSI layer 1. Advantages over CAN bus ISO-TP (ISO 15765-2)[3]The clear advantage over the diagnosis via CAN bus with the transport protocol ISO-TP (ISO 15765-2) is the 200 times higher gross data rate of 100 MBit / s. In addition, there is a cost advantage of very common hardware components, which include the Ethernet controller and the 100BASE-TX line with RJ-45 connector. The omission of a hardware VCI (Vehicle Communication Interface) required by CAN also reduces costs and only requires an Ethernet interface on the PC for the connection, which almost every computer has one these days. References1. ^{{cite web |location=https://de.wikipedia.org/wiki/DoIP}} 2. ^{{cite web |location=https://www.iso.org/obp/ui/#iso:std:iso:13400:-1:ed-1:v1:en}} 3. ^{{cite web |location=https://de.wikipedia.org/wiki/DoIP}} DoIP (Diagnostics Over IP) |
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