Connection device and data transmission method

Abstract

The invention provides a connection device comprising an offline downloading module, a vehicle CAN bus reading module, a programmable logic module and an open CAN protocol module, wherein the vehicleCAN bus reading module is connected with a vehicle CAN bus and the programmable logic module, the open CAN protocol module is connected with the programmable logic module and an Internet of Vehicles terminal, and the offline downloading module is connected with the programmable logic module. A vehicle-mounted terminal and the vehicle CAN bus physically isolated to overcome the information securityproblem resulting from the fact that the existing Internet of Vehicles terminal directly reads CAN bus messages, and the CAN bus data are isolated and protected while the Internet of Vehicles terminal reads the CAN bus data.

Description

technical field [0001] The invention belongs to the technical field of Internet of Vehicles, and relates to a connection device and a data transmission method. Background technique [0002] At present, the Internet of Vehicles technology is developing rapidly, and the safety / non-safety application of Internet of Vehicles based on vehicle-vehicle and vehicle-road communication has become a research hotspot in the fields of information technology, automobile industry and road transportation. The Internet of Vehicles realizes information sharing among traffic participants through the interaction of information such as the position and movement status of vehicles, thereby realizing various traffic applications. Among them, the CAN bus information contains a wealth of vehicle operating status, and has strong real-time performance and high accuracy. It is an ideal information source for the Internet of Vehicles. By obtaining CAN bus information, the Internet of Vehicles terminal ...

AI Technical Summary

Problems solved by technology

This method cannot technically and structurally guarantee the security of the Internet of Vehicles and CAN bus, but restricts the development of related technologies of the Internet of Vehicles to a certain extent.

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