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Connecting devices and data transfer methods

A data transmission method and device access technology, which are applied in the field of connecting devices and data transmission, can solve the problems of restricting the development of the Internet of Vehicles, ensuring the security of the Internet of Vehicles and CAN bus, etc., to meet the compatibility of software and hardware structures and protect the CAN bus protocol of vehicles. , to ensure the effect of vehicle safety

Active Publication Date: 2021-01-05
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Connecting devices and data transfer methods
  • Connecting devices and data transfer methods

Examples

Experimental program
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Embodiment

[0042] The working scenario of this embodiment is as follows figure 1 shown. System structure such as figure 2 shown. Suppose a car has left turn signal data "1A2B3C" on the CAN bus address "4C1", which means the left turn signal is turned on. And for the Internet of Vehicles terminal. The vehicle-mounted terminal needs to read the status of "left turn signal on" without knowing the CAN bus address and data content of the vehicle. The specific workflow is as follows:

[0043] Step 1: The automobile manufacturer downloads the corresponding logical relationship of "4C1-1A2B3C-left turn signal-on" to the offline download module through wired, wireless or storage media; the offline download module downloads "4C1-1A2B3C-left turn signal- The content of "start" is transmitted to the programmable logic module, and the programmable logic module is started.

[0044] Step 2: The automotive CAN bus reading module reads data from the automotive CAN bus data stream, compiles the dat...

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PUM

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Abstract

The invention provides a connection device, comprising an offline downloading module, a car CAN bus reading module, a programmable logic module and a wireless network module. The car CAN bus reading module is connected with a car CAN bus and the programmable logic module. The wireless network module is connected with the programmable logic module and an Internet of vehicles terminal. The offline downloading module is connected with the programmable logic module. The Internet of vehicles terminal and the car CAN bus are physically isolated, so the information security problem resulting from thefact that the existing Internet of vehicles terminal directly reads a CAN bus message is overcome. When the Internet of vehicles terminal reads CAN bus data, the CAN bus data is isolated and protected at the same time.

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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/06H04L12/40
CPCH04L12/40006H04L63/02H04L67/06H04L67/12H04L2012/40215
Inventor 赵祥模李骁驰徐志刚王振王润民闵海根孙朋朋
Owner CHANGAN UNIV