Data transmission method and equipment

A data transmission method and data transmission technology, applied in the field of field bus communication, can solve the problems of scheduling time consumption, the average scheduling time is affected by the protocol level, etc., and achieve the effects of improving the effective bandwidth, reducing the effective packet header length, and reducing the delay time.
CN106712907BActive Publication Date: 2019-08-20北京中航通用科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
北京中航通用科技有限公司
Publication Date
2019-08-20

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Abstract

The invention discloses a data transmission method and equipment. The data is encapsulated as a data frame according to a specific frame format so as to be transmitted, wherein the specific format comprises a constant field, a message control field, a source address, a destination address, a destination port field, a data frame character field, a command character field, and check field. Compared with three onboard network interconnection bus standards in the prior art, the data transmission method based on the specific frame format disclosed by the invention improves the bus effective bandwidth and lowers the delay time of the single command since the effective packet header length is greatly reduced.
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Description

technical field

[0001] The invention relates to the field bus communication field, in particular to a command-response high-speed bus data transmission method and equipment transmitted through optical fiber and Ethernet and adopting a specific data frame structure. Background technique

[0002] High-speed data bus technology is the key technology of the avionics system. The avionics system is the "brain" and "nerve center" of modern aircraft, and the on-board bus network is its key "neural network". The existing on-board network interconnection is mainly Based on the following technical standards, one is the MIL-STD1553 bus standard, the other is the fiber-based FC-AE-1553 bus standard, and the third is the Ethernet-based AFDX bus standard.

[0003] The MIL-STD-1553 bus is an information transmission bus standard specially designated for aircraft equipment in the United States. It has high real-time reliability, and its operating frequency is 1Mbps. It adopts Manchester II c...

Claims

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