Lifetime screening-based high-reliability bus message transmission method

A message transmission and message technology, applied in the field of message transmission, can solve the problems of low efficiency, achieve the effect of avoiding message loss, avoiding interference, and realizing reliable transmission

Active Publication Date: 2015-12-30
BEIJING AEROSPACE AUTOMATIC CONTROL RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to provide a high-reliability bus message transmission method based on lifetime screening, and to solve the problem of low processing logic efficiency of the processing method in the prior art

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  • Lifetime screening-based high-reliability bus message transmission method

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Embodiment Construction

[0017] A kind of highly reliable bus message transmission technology based on lifetime screening of the present invention, the sender (information source) of the message in the bus carries out N times of message transmission with check code, and the receiver (receiver) of message receives M After verifying correct messages, it is determined that the message is valid, where 0

[0018] The sender (source) of the message in the bus sends messages with check codes N times, and the source needs to be within T lifetime All N messages with check codes are sent within ×80% of the time length, and the message sending period is greater than twice T lifetime . T lifetime is the effective life of the message at the sink, that is, the life cycle for judging the validity of the message. The sink end according to T lifetime Define what-if filter groups. For the same set of messages received by the sink, the sink defines a hypothetical screening group in the following way: starting ...

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Abstract

The invention relates to a lifetime screening-based high-reliability bus message transmission method. The lifetime screening-based high-reliability bus message transmission method includes the step that: a transmitting end of messages in a bus performs N times of check code-containing message transmitting, and after receiving M messages verified as correct messages, a receiving end of the messages judges the messages are valid, wherein 0<M<=N. According to the method of the invention, the message transmitting end transmits the messages by a plurality of times, and the message receiving end confirms the validity of the messages by a plurality of times according to lifetime, and therefore, reliable transmitting of the messages can be realized, and message loss caused by transient interference of communication lines can be avoided, and interference on the normal function of the message receiving end after noise messages are mistakenly received can be avoided; before communication, the message transmitting end is not required to perform complex communication line reliability confirmation such as hand shake, and therefore, transaction execution efficiency of the message transmitting end in communication can be improved.

Description

technical field [0001] The invention relates to a message transmission technology in an electronic control system, in particular to a high-reliability bus message transmission method based on lifetime screening. Background technique [0002] In the design of electrical control systems such as airplanes and automobiles, the application of the bus is relatively extensive, and equipment defects caused by bus communication failures will seriously restrict the stability and reliability of equipment operation. In order to improve the communication quality of the bus, it is generally effective to increase the anti-interference of the hardware itself, but in some application environments, hardware interference becomes inevitable. Therefore, anti-jamming design in processing logic becomes an important design aspect. "Handshake-send message-confirmation-reconfirmation" is a commonly used reliability design method, but the efficiency of processing logic is low for both communicating p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/58H04L1/00
Inventor 高飞叶绍凯李慧崔宇刘思东邱枫隋强强丁万兵仲宇张磊解月江孙鹏
Owner BEIJING AEROSPACE AUTOMATIC CONTROL RES INST
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