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AFDX (Avionics Full Duplex Switched Ethernet) bus information checking system and method

A verification method and message technology, applied in the field of communication, can solve problems such as abnormal message data sequence and inability to verify data sequence.

Active Publication Date: 2017-05-31
BEIJING RUNKE GENERAL TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] However, in the process of verifying the sequence integrity of data in the prior art, SN is allocated in units of virtual links, and only the data sequence on one virtual link can be verified, but not for each message. The order of its own data is verified. It is possible that the data in the message is in the normal order during transmission, but the order of the message data received by the receiving end is abnormal.

Method used

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  • AFDX (Avionics Full Duplex Switched Ethernet) bus information checking system and method
  • AFDX (Avionics Full Duplex Switched Ethernet) bus information checking system and method
  • AFDX (Avionics Full Duplex Switched Ethernet) bus information checking system and method

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0045] The embodiment of the present application provides a verification system for AFDX bus messages, such as figure 1 As shown, including: the sending end and the receiving end; where,

[0046] The sending end is used to generate a message, the message includes at least one type of data, and the type of data includes at least one piece of data;

[0047] Assigning a data serial number to each piece of data in the message, and the data serial number of the sa...

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Abstract

The invention discloses an AFDX (Avionics Full Duplex Switched Ethernet) bus information checking system and method. A distributing end of the AFDX bus information checking system distributes a data serial number for an effective load in each piece of data of information to mark self generated sequences of all data, a receiving end of the AFDX bus information checking system can check each piece of data in the information according to the data serial number, and whether the self sequence of the piece of data is normal or not can be judged; thus, the purpose of checking data sequence completeness of each piece of information is achieved, and the situation that information data received by the receiving end are abnormal in sequence due to self data sequence error when the data in the information keeps a normal sequence in a transmission process is avoided.

Description

technical field [0001] The present application relates to the technical field of communication, and more specifically, relates to a verification system and method for AFDX bus messages. Background technique [0002] In the communication process of avionics network, there is often some correlation between some data or frames, and it is necessary to maintain the sequence integrity of the received data. The AFDX (Avionics Full Duplex Switched Ethernet, Avionics Full Duplex Switched Ethernet) communication protocol requires data to maintain sequential integrity in a given virtual link. Communication rules for verifying the order of data in the network: the sender assigns an SN (Sequence Number, serial number) to each piece of data sent on a virtual link through the "scheduler", and the SN of each piece of data is located at the end of the piece of data At the end, SN is incremented by 1 from 1-255, and 0 represents the first piece of data sent after the sender device is reset. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0061
Inventor 张智斌
Owner BEIJING RUNKE GENERAL TECH
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