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Data communication method and device, communication terminal and computer readable storage medium

A communication terminal and data communication technology, applied in the direction of digital transmission system, adjustment of transmission mode, transmission modification based on link quality, etc. quick effect

Pending Publication Date: 2022-01-18
HUNAN XING TIAN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The service data frame is sent in a standard format. After receiving the data frame, the receiving terminal system node cannot know the actual effective data length of the service application data carried by the data packet in this frame. The application layer can only completely receive all data information including The invalid data filled by the source sender is analyzed and processed, which wastes bandwidth and reduces business processing performance

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  • Data communication method and device, communication terminal and computer readable storage medium
  • Data communication method and device, communication terminal and computer readable storage medium
  • Data communication method and device, communication terminal and computer readable storage medium

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specific Embodiment approach

[0069] One particular embodiment, the method of constructing the data frame to the target service, in accordance with an embodiment of the present application further comprises:

[0070] Cycle redundancy checks for the target service data frame to obtain the first cycle redundancy check code;

[0071] The first cycle redundancy check code is stored in the communication data frame head structure, wherein the service type information, the valid data length information, and the number of bytes of the first cycle redundancy. The number of bytes smaller than the communication data frame header structure.

[0072] Specifically, in the service data obtaining the target frame, the target service data frame cyclic redundancy check (Cyclic Redundancy Check, CRC for short), it is possible to obtain a first cyclic redundancy check code, i.e., the first CRC checksum.

[0073] The terminal node of the first communication system to the first terminal of the CRC checksum is added to the communica...

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Abstract

The embodiment of the invention discloses a data communication method and device, a communication terminal and a computer readable storage medium, which are applied to a terminal system node of a first communication terminal, and the first communication terminal and a second communication terminal perform data communication under a time-triggered Ethernet network system. The method comprises: obtaining a communication data frame header structure of the service data frame to be sent, the communication data frame header structure comprising a part of bytes of data load information of the service data frame to be sent; storing service type information and effective data length information of the service data frame to be sent in the communication data frame header structure; combining the communication data frame header structure with the data content of the to-be-sent service data frame to obtain a target service data frame; and sending the target service data frame to the second communication terminal. Through the steps, the communication between the service ends in the time-triggered Ethernet network system can be quicker and more efficient.

Description

Technical field [0001] The present invention relates to the field of computer network communication, and more particularly to a data communication method, a device, a communication terminal, and a computer readable storage medium. Background technique [0002] Time Triggered Ethernet, TTE) standard can be widely used in aerospace, aviation, and automotive fields, which effectively solves the high real-time real-time performance of the control system to achieve unified Ethernet communication. [0003] In a specific item application, data communication between two or more terminal system nodes of TTE, such as transmit control instructions, read system status data, and the like. Due to the different applications, the length of communication data is different. In order to reduce the number of virtual links in the TTE system, one communication direction between the two terminal system nodes is generally designed, the virtual link, which needs to be able to carry all different lengths ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0008H04L1/004H04L1/0083H04L1/0084
Inventor 谢业专黎硕李旭勇熊帮发朱国定刘拓
Owner HUNAN XING TIAN ELECTRONICS TECH