Communication method for aerospace Ethernet compatible with time-triggered Ethernet and 1553B

A time-triggered, communication method technology, applied in the field of aerospace Ethernet bus, can solve the problems of no mature technical reports, etc., and achieve the effect of increasing seamless redundancy, safe and reliable mechanism, and smooth transition

Active Publication Date: 2016-10-05
TIANJIN UNIV
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Problems solved by technology

[0005] There is no mature technical report

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  • Communication method for aerospace Ethernet compatible with time-triggered Ethernet and 1553B

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Embodiment Construction

[0038] The invention relates to the field of time-triggered Ethernet, which combines the certainty, fault-tolerant mechanism and real-time performance of time-triggered technology with the flexibility, dynamic performance and "best effort" ability of common Ethernet. Provides support for simultaneous, highly reliable embedded computing and networking, fault-tolerant designs.

[0039] The technical scheme adopted in the present invention is: apply the physical layer and data link layer of 802.3 traditional Ethernet, and the data transmission control of 1553, configure the time-triggered Ethernet function, and increase the seamless redundancy and safe and credible mechanism, In the same network bus, it can not only complete the transmission of control information in real time and reliably, but also complete the transmission of large data volume information at high speed. At the same time, it has security and trustworthy measures to ensure the security and reliability of key infor...

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Abstract

The invention relates to the field of time-triggered Ethernet. In order to realize the fact that the new-generation aerospace Ethernet bus (AEB) has the advantages of high speed, strong real-time performance, high reliability, safety and credibility, both high reliability of 1553 and low cost of the Ethernet are achieved, and the existing weapon aircraft and the like all adopt a 1553 scheme, a user can make no change for realizing smooth transition from 1553 to AEB, and while the cost is reduced, and the stability and the reliability can still be ensured, a communication method for aerospace Ethernet compatible with time-triggered Ethernet and 1553B is provided according to the technical scheme adopted by the invention. A time-triggered compatible protocol architecture is adopted to transmit three different priorities of data frames: command corresponding data, IT application data and time-triggered data, and the three frames all adopt a standard Ethernet frame format, type domain values are different due to packaging through different protocols. The method of the invention is mainly applied to Ethernet communication.

Description

technical field [0001] The invention relates to the field of time-triggered Ethernet, in particular to an aerospace Ethernet bus compatible with time-triggered Ethernet and 1553B. Background technique [0002] With the continuous development and progress of aerospace technology, aerospace technology has widely benefited all mankind in the civilian field, especially in the fields of space exploration, satellite navigation, meteorological observation, and extraterrestrial life exploration. But at the same time, it has also caused the overall system of the spacecraft to become increasingly complex. Although the processing capacity of each stand-alone device has been greatly improved after many upgrades of electronic technology, the interconnection transmission system between devices is slightly behind. Basically, the transmission architecture of 20 or 30 years ago is still used, that is, the control bus adopts 1553 bus, 1394 bus, etc., and the data transmission adopts an additi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40
CPCH04L12/40H04L12/40013H04L12/40143
Inventor 汪清杨耀通朱啸天方浩宇赵爽
Owner TIANJIN UNIV
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