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Data transmission method based on vehicle bus

A data transmission method and vehicle bus technology, applied in transmission systems, bus networks, data exchange through path configuration, etc., can solve problems such as inability to transmit signal data, transmission of long data by basic protocols, etc., to avoid data loss and flexibility. High and wide range of effects

Inactive Publication Date: 2016-08-10
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of vehicle communication control, when signal data with a long number of digits is collected, there will be a problem that the signal data cannot be transmitted on the bus according to the protocol related to the bus, so the long data cannot be transmitted using the basic protocol

Method used

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  • Data transmission method based on vehicle bus
  • Data transmission method based on vehicle bus

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Embodiment Construction

[0012] figure 1 It is a schematic diagram of a data transmission method based on a vehicle bus according to an embodiment of the present invention. Such as figure 1 As shown, the method may include four parts: signal packaging, signal transmission, signal packet reassembly, and signal analysis. At the sending end: pack the original data to be transmitted according to the packaging rules to obtain data packets, the original data can be multi-channel signal data; protocol), decompose the data packet into multiple sub-packets so that the length of each sub-packet is less than or equal to the specified length, and add identification information to each sub-packet and transmit it on the bus The multiple subcontracts. At the receiving end: receive a plurality of subpackages, recombine the plurality of subpackets into data packets according to the identification information of each subpackage, and unpack the data packets according to the unpacking rules corresponding to the packin...

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Abstract

The invention discloses a data transmission method based on a vehicle bus. At the sending end: Pack the original data to be transmitted into a data packet according to the packing rules. When it is judged that the length of the data packet exceeds the length specified by the specific communication protocol, the data packet is decomposed into multiple sub-packages, so that each sub-packet The length of the packet is less than or equal to the specified length, and adding identification information to each sub-packet and transmitting the multiple sub-packets on the bus. At the receiving end: receive a plurality of subpackages, and recombine the multiple subpackets into data packets according to the identification information of each subpackage, and unpack the data packets according to the unpacking rules corresponding to the packing rules to obtain result data.

Description

technical field [0001] The invention relates to a data transmission method based on a vehicle bus. Background technique [0002] In the process of vehicle communication control, when signal data with a long number of digits is collected, there will be a problem that the signal data cannot be transmitted on the bus according to the protocol related to the bus, so the basic protocol cannot be used to transmit long data. Contents of the invention [0003] A data transmission method based on a vehicle bus is disclosed. At the sending end, the original data to be transmitted is packaged according to the packaging rules to obtain a data packet. When it is judged that the length of the data packet exceeds the length specified by a specific communication protocol, the data packet is Decompose into multiple sub-packages, so that the length of each sub-packet is less than or equal to the specified length, and add identification information to each sub-packet and transmit the multipl...

Claims

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Application Information

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IPC IPC(8): H04L12/40H04L29/08
Inventor 丁美玲段嗣盛
Owner SAIC GENERAL MOTORS
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