Vehicle-mounted multi-channel routing method and system

Abstract

The invention discloses a vehicle-mounted multi-channel routing method and a vehicle-mounted multi-channel routing system. The system comprises a processor module, an AVB exchange module, a mobile communication module, a WIFI module and a CAN bus interface module, wherein the processor module receives a request of finding a target IP address sent by a source terminal in or outside a network, and finds a target terminal corresponding to the target IP address according to routing list, so that the source terminal and the target terminal build a network connection based on a TCP / IP protocol. The processor module receives control requests from the AVB exchange module, the mobile communication module and the WIFI module, and sends control signals to the CAN bus interface module according to the control requests. According to the method and the system provided by the invention, a transmission speed in the vehicle-mounted network is greatly improved, and meanwhile the problem that routing cannot be achieved between a vehicle body control unit and a vehicle-mounted WIFI network is solved by building a multi-channel route, in addition, communication scanning on data packets is achieved via an AVB gateway firewall according to characteristics of the AVB exchange module, and thus capability of resisting attacks is provided. Network data communication of the WIFI network and the CAN bus is also achieved.

Description

technical field [0001] The invention relates to the construction of a vehicle network, in particular to a vehicle multi-channel routing method and system. Background technique [0002] With the rapid development of information technology, its technology has been applied to various fields and has been widely used in the automotive electronics industry. The development of the Internet of Vehicles is based on network communication technology to complete the vehicle-to-vehicle, vehicle-to-road, and vehicle-to-people Interconnection of information. In addition, the car is no longer a simple means of transportation. With the continuous enrichment of in-vehicle entertainment systems and the increase of in-vehicle electronic equipment, a large amount of data needs to be transmitted. For example, the images provided by the front and rear cameras of the vehicle body are transmitted to the main display screen, and the amount of information is even greater. For ADAS (Advanced Driver A...

AI Technical Summary

Problems solved by technology

For ADAS (Advanced Driver Assistance System) and 360-degree panoramic parking system, the car network must support real-time transmission of 720p or higher high-definition video from the front and rear of the car to the display panel in front of the driver. To transmit high-definition data signals, currently Using the compression method, 30M bandwidth is required after compression. At present, the CAN bus is difficult to carry the network bandwidth. At the same time, with the increase of smart devices in the car, the interaction between smart devices also increases the requirements of the car network.

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