communication gateway and method for converting an automobile Ethernet bus into a CAN bus

Abstract

The invention discloses a communication gateway and method for converting an automobile Ethernet bus into a CAN bus. The system comprises an automobile Ethernet transmitting and receiving device, a processor and a CAN bus transmitting and receiving device, The automobile Ethernet receiving and transmitting device and the CAN bus receiving and transmitting device are both connected with the processor; Wherein the automobile Ethernet transceiver is connected with equipment connected with the automobile Ethernet through the automobile Ethernet bus interface circuit, and the CAN bus transceiver isconnected with the equipment connected with the CAN bus network through the CAN bus network interface circuit. According to the invention, the gateway is arranged as a conversion device for communication between the automobile Ethernet and the CAN bus; The problem that direct communication cannot be carried out due to the fact that a frame structure is different from a frame structure of CAN busdata transmission during automobile Ethernet data transmission is solved, barrier-free communication between the automobile Ethernet and a CAN bus network is achieved, and the real-time performance ofthe communication process of the automobile Ethernet and the CAN bus network 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...

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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

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