Connection device and data transmission method

A data transmission method and data technology, applied in the field of Internet of Vehicles, can solve the problems of ensuring the security of Internet of Vehicles and CAN bus, restricting the development of Internet of Vehicles, etc., and achieve the effect of protecting the CAN bus protocol of vehicles, satisfying the compatibility of software and hardware structures, and ensuring logic.

Active Publication Date: 2018-05-15
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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  • Connection device and data transmission method
  • Connection device and data transmission method

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Embodiment

[0039] The working scenario of this embodiment is as follows figure 1 shown. System structure such as figure 2 shown. For the Internet of Vehicles terminal, there is an open CAN protocol, and the address "6FA" has the left turn signal data "4D5E6F", which means the left turn signal is turned on. 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:

[0040] Step 1: The automobile manufacturer downloads the corresponding logical relationship of "6FA-4D5E6F-left turn signal-on" to the offline download module through wired, wireless or storage media; the offline download module downloads "6FA-4D5E6F-left turn signal- The content of "start" is transmitted to the programmable logic module, and the programmable logic module is started.

[0041] Step 2: The automotive CAN bus reading module reads data from the automotive CAN bus data stream, compile...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/40H04L29/06
CPCH04L12/40H04L63/02H04L63/0428H04L67/06H04L67/12H04L2012/40215H04L2012/40273
Inventor 赵祥模李骁驰徐志刚王振王润民闵海根孙朋朋
Owner CHANGAN UNIV
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