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Data communication method and device for vehicle-mounted automatic driving system

A technology of automatic driving and data communication, applied in the direction of transmission system, electrical components, etc., can solve the problem that the communication rate of CAN network cannot meet the communication requirements of automatic driving system.

Active Publication Date: 2019-01-18
BEIJING HAINACHUAN AUTOMOTIVE PARTS
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Problems solved by technology

[0003] In related technologies, the CAN network is usually used for communication transmission. However, with the increase of the communication data volume of autonomous driving vehicles, the communication rate of the CAN network is far from being able to meet the data communication of images, point clouds and other data of the automatic driving system. need, need to be solved

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  • Data communication method and device for vehicle-mounted automatic driving system
  • Data communication method and device for vehicle-mounted automatic driving system
  • Data communication method and device for vehicle-mounted automatic driving system

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0027] The data communication method and device of the vehicle automatic driving system according to the embodiments of the present invention will be described below with reference to the accompanying drawings. First, the data communication method of the vehicle automatic driving system according to the embodiments of the present invention will be described with reference to the accompanying drawings.

[0028] figure 1 It is a flow chart of a data communication method for a vehicle-mounted automatic driving system according to an...

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Abstract

The invention discloses a data communication method and device for a vehicle-mounted automatic driving system. The system comprises a CAN-Ethernet converter and an Ethernet switch, and the method comprises the following steps: acquiring CAN protocol data transmitted by at least one vehicle body sensor through CAN communication; converting the CAN protocol data into Ethernet data by the CAN-Ethernet converter; and performing the communication of Ethernet data a vehicle body device through a preset protocol via the Ethernet switch. The method realizes the collection of a body bus signal in a node centralized conversion mode through a CAN bus gateway, and feeds back the decision of a controller to a vehicle body execution unit, so system can achieve high-speed data transmission and is compatible with the existing sensors and body systems.

Description

technical field [0001] The invention relates to the technical field of communication of automatic driving vehicles, in particular to a data communication method and device for a vehicle automatic driving system. Background technique [0002] Communication and transmission is a very important aspect of an autonomous driving system. The automatic driving system needs to connect various types of sensors with different functions to collect data for the controller to make decisions. At the same time, it also needs to quickly and accurately transmit the instructions of the controller to the vehicle body for vehicle control. [0003] In related technologies, the CAN network is usually used for communication transmission. However, with the increase of the communication data volume of autonomous driving vehicles, the communication rate of the CAN network is far from being able to meet the data communication of images, point clouds and other data of the automatic driving system. Need...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08
CPCH04L67/12H04L69/08
Inventor 夏宇航郭鹏伟武群姜云岱
Owner BEIJING HAINACHUAN AUTOMOTIVE PARTS
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