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A data communication method between nc and nt

A data communication and data frame technology, which is applied in the field of Ethernet communication, can solve problems such as conflicts and no unified management and control of sending and receiving packets, and achieve the effects of low cost, improved bus data transmission rate, high speed and cost

Active Publication Date: 2020-08-04
TIANJIN JINHANG COMP TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Each Ethernet terminal device is completely autonomous, and there is no unified management and control of sending and receiving packets, which will cause conflicts on the occupied Ethernet bus, compete for bus bandwidth, and bring uncertainty

Method used

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  • A data communication method between nc and nt
  • A data communication method between nc and nt
  • A data communication method between nc and nt

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Embodiment Construction

[0033] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] figure 1It is an embodiment of an Ethernet communication system based on the 1553B protocol of the present invention. In this system embodiment, there is and only one working network controller (NC), 4 network terminals (NT), through the Ethernet switching network To realize the interconnection between NC and NT, the network equipment adopts an Ethernet communication method (1553oE) based on the 1553B protocol for communication. The Ethernet communication method based on the 1553B protocol is realized by using the 1553oE Ethernet, and the 1553oE Ethernet is referred to as 1553oE for short. The 1553oE is defined as: conforming to the OSI seven-layer network model, and only adding the 1553oE control sublayer in th...

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Abstract

The invention relates to a data communication method for an NC and NTs and relates to the technical field of time frequency measurement. According to the method, the network controller (NC) and network terminals (NT) carry out communication through adoption of an Ethernet communication method (1553oE) based on a 1553B protocol. The method has the certainty and timeliness of the 1553B, is compatible with a traditional 1553B device and is also characterized by high speed and low cost of the Ethernet. A bus data transmission rate can be improved. The development of a modern aerospace bus system can be satisfied.

Description

technical field [0001] The invention relates to the technical field of Ethernet communication, in particular to a data communication method between NC and NT. Background technique [0002] With the updating and upgrading of aerospace vehicles in recent years, the 1Mb / s rate of the traditional 1553B bus is far from meeting the large-volume, high-speed transmission requirements such as video and voice, and has gradually become a bottleneck in the development of aerospace bus systems. In the field of aerospace, a large number of terminals adopt the 1553B protocol, and the new bus system must be compatible with traditional 1553B devices to achieve a smooth upgrade of the bus system. [0003] In recent years, Ethernet technology has developed rapidly. Ethernet is a standard open network; high data transmission rate, supports 10Mbps, 100Mbps, 1Gbps and 10Gbps; supports multiple physical media and flexible topology; low cost and fee. The above advantages make Ethernet widely used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40
CPCH04L12/40H04L12/40006H04L2012/4028
Inventor 李文健秦刚刚王刚刘剑锋
Owner TIANJIN JINHANG COMP TECH RES INST