A communication gateway and method for converting an automotive Ethernet bus to a CAN bus

Abstract

The invention discloses a communication gateway and a method for converting an automobile Ethernet bus to a CAN bus. The system includes an automobile Ethernet transceiver, a processor, and a CAN bus transceiver; the automobile Ethernet transceiver and the CAN bus transceiver are both connected to the processor Connection; the automotive Ethernet transceiver is connected to the equipment connected to the automotive Ethernet through the automotive Ethernet bus interface circuit, and the CAN bus transceiver is connected to the equipment connected to the CAN bus network through the CAN bus network interface circuit. The present invention solves the problem that direct communication cannot be performed due to the difference between the frame structure of the automotive Ethernet data transmission and the frame structure of the CAN bus data transmission by setting the gateway as a conversion device during the communication between the automotive Ethernet and the CAN bus. The barrier-free communication between the automotive Ethernet and the CAN bus network is realized, and the real-time performance of the communication process is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of automobile communication, and in particular relates to an automobile Ethernet bus-CAN bus communication gateway and a method. Background technique [0002] In the 30 years since its birth, Ethernet has become the leading technology of local area network (LAN) due to its simplicity, high speed, and easy expansion. With the updating of applications and requirements, the applicable field of Ethernet is also constantly expanding. [0003] CAN bus, as one of the mainstream field buses, has many characteristics such as multi-master transmission, high real-time and high reliability, data addressing and convenient assembly. Its application range includes aircraft avionics system communication, automotive electronic equipment communication and industrial measurement and other related fields. The embedded communication network architecture of "dual-network combination" of Ethernet and CAN bus has gradually become...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the communication gateway and method for converting the automotive Ethernet bus to the CAN bus provided by the present invention solve the problem caused by the difference between the frame structure of the automotive Ethernet data transmission and the frame structure of the CAN bus data transmission. The problem of not being able to communicate directly

Images