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A verification system and method for AFDX bus messages

A verification method and message technology, which is applied in the field of communication, can solve the problems of inability to verify the sequence of data and low accuracy of data sequence integrity verification, and achieve the effect of increasing the verification accuracy

Active Publication Date: 2020-08-28
BEIJING RUNKE GENERAL TECH
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  • Abstract
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  • 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 all virtual links. The sequence of all data on the road is verified, and the verification accuracy of the sequence integrity of the data in the message is low

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  • A verification system and method for AFDX bus messages
  • A verification system and method for AFDX bus messages
  • A verification system and method for AFDX bus messages

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Embodiment Construction

[0048] 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.

[0049] 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,

[0050] The sending end is used to generate a message, and the message includes at least one piece of data;

[0051] Obtaining local time as a timestamp, the local time being the duration after the sending end is initialized;

[0052] assigning the timestamp to each piece o...

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Abstract

The invention discloses an AFDX (Avionics Full Duplex Switched Ethernet) bus message verification system and method, wherein a sending end of the AFDX bus message verification system assigns a timestamp in an effective load of each piece of data of a message to mark a sequence of each piece of data of the message before the message is sent; and a receiving end of the AFDX bus message verification system carries out verification according to the received timestamp of each piece of data of the message and sequentially judges whether the own sequence of the data is normal or not, so that the purpose of verifying the sequence of the message data transmitted in all virtual links is achieved, and the verification accuracy of the sequence integrity of the message data is improved.

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 Patents(China)
IPC IPC(8): H04L12/40H04L29/06
CPCH04L12/40006H04L12/4015H04L63/12
Inventor 张智斌
Owner BEIJING RUNKE GENERAL TECH
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