Method of data transmission by using ethernet network in vehicle and equipment

An Ethernet and data technology, applied in the field of communication technology and automotive electronics, can solve problems such as Ethernet application limitations and Ethernet being susceptible to electromagnetic interference.

Active Publication Date: 2017-09-19
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, vehicles often generate serious electromagnetic interference during driving, and the physical layer of Ethernet has the disadvantage of being susceptible to electromagnetic interference, so the application of Ethernet in the vehicle field is greatly limited.

Method used

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  • Method of data transmission by using ethernet network in vehicle and equipment
  • Method of data transmission by using ethernet network in vehicle and equipment
  • Method of data transmission by using ethernet network in vehicle and equipment

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Embodiment Construction

[0044] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in different forms and should not be construed as limited to only the embodiments set forth herein. The above-mentioned embodiments are given to make the disclosure of this document comprehensive and complete, so as to make the understanding of the protection scope of the present invention more comprehensive and accurate.

[0045] Words such as "comprising" and "comprising" mean that in addition to the units and steps that are directly and explicitly stated in the specification and claims, the technical solution of the present invention does not exclude other elements that are not directly or explicitly stated. Situation of units and steps.

[0046] Exemplary embodiments of the invention are described below with reference to the drawings.

[0047] image 3 It is ...

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PUM

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Abstract

The invention relates to the communication technology and the automotive electronic technology, more particularly to a vehicle-mounted ethernet network and a method of data transmission by using ethernet network in a vehicle. According to one embodiment of the invention, the vehicle-mounted ethernet network comprises a display module, an audio module, a communication module, a central server, and a transmission medium connecting network nodes. Data are sent between two network nodes as follows: the network node as a data sending terminal determines a type of sent data, wherein the types include a control data type, a video/audio stream type and a normal data type; the network node as the data sending terminal sends the data to the network node serving as a data receiving terminal by the transmission medium based on a protocol associated with the determined type; and for the control data, the network node serving as the data receiving terminal returns a receiving state message to the etwork node as the data sending terminal through the transmission medium.

Description

technical field [0001] The invention relates to communication technology and automobile electronic technology, in particular to a vehicle-mounted Ethernet and a method for using the Ethernet to transmit data in the vehicle. Background technique [0002] Ethernet (Ethernet) is widely used in household and industrial fields, and has advantages such as large bandwidth and low equipment cost. [0003] figure 1 A schematic diagram of Automotive Ethernet for vehicle diagnostics. Such as figure 1 As shown, the vehicle Ethernet 10 includes electronic control units (ECUs) 111 , 112 and 113 of the vehicle and a gateway 120 , wherein each ECU is connected to the gateway 120 through a transmission medium (such as a cable). The communication between the ECU and the gateway 120 is based on the TCP / IP protocol. Although this protocol can guarantee the reliability of the data, it cannot ensure the real-time transmission of the data. [0004] figure 2 A schematic diagram of Automotive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06H04N21/414H04N21/643
CPCH04L67/12H04L69/161H04N21/41422H04N21/643H04L65/65
Inventor 金栎田敏杰
Owner SAIC GENERAL MOTORS
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