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Method and device for transmitting data through user datagram protocol and electric vehicle

A technology for user datagram and protocol transmission, applied in transmission systems, electrical components, etc., can solve problems such as insufficient length of UDP transmission data, and achieve the effect of broadening application scenarios

Active Publication Date: 2021-09-28
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a user datagram protocol data transmission method, device and electric vehicle, thereby solving the problem of insufficient UDP transmission data length in the prior art

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  • Method and device for transmitting data through user datagram protocol and electric vehicle

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Embodiment Construction

[0023] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0024] The embodiment of the present invention aims at the problem of insufficient UDP transmission data length in the prior art, and provides a user datagram protocol data transmission method, device and electric vehicle, which realize UDP segmented data transmission.

[0025] Such as figure 1 As shown, an embodiment of the present invention provides a user datagram protocol data transmission method, which is applied to electric vehicles, including:

[0026] Step S11, sending User Datagram Protocol UDP message data in Ethernet;

[0027] Step S12, wherein, the UDP packet data includes segment indication information.

[0028] Specifically, the segment indication information includes:

[0029] Segment flag, last fragment packet flag, and offset value. ...

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Abstract

The invention provides a method and device for transmitting data through a user datagram protocol and an electric automobile, and relates to the technical field of electric vehicles. The method for transmitting data through the user datagram protocol comprises the following steps: sending user datagram protocol (UDP) message data in the Ethernet, wherein the UDP message data comprises segmentation indication information. According to the method for transmitting the data through the UDP, UDP segmented data transmission is achieved.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to a method for transmitting data by a user datagram protocol. Background technique [0002] When the electronic control unit of the Ethernet network transmission of the electric vehicle needs to transmit a data packet with a large data length, in order to avoid the fragmentation of the IP layer, the data packet is divided into several pieces, so that each piece is smaller than the maximum transmission unit. When UDP (UserDatagram Protocol, User Datagram Protocol) is used, the maximum transmission data length is 1472 bytes. When you want to transmit data larger than 1472 bytes, you can only choose TCP (Transmission Control Protocol, Transmission Control Protocol), but the real-time performance of TCP cannot meet the requirements, especially for the development of unmanned driving, it is necessary to transmit a large amount of data in real time, so There is a n...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/08
CPCH04L69/16H04L67/12H04L69/166H04L69/03
Inventor 郭俊飞
Owner BEIJING ELECTRIC VEHICLE