Routing method in FC-AE-1553 switch-type network

A FC-AE-1553, switching technology, used in data switching networks, digital transmission systems, electrical components, etc.

Active Publication Date: 2019-01-18
GUILIN UNIV OF ELECTRONIC TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides an FC- Routing Method in AE-1553 Switched Network

Method used

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  • Routing method in FC-AE-1553 switch-type network
  • Routing method in FC-AE-1553 switch-type network
  • Routing method in FC-AE-1553 switch-type network

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific examples and with reference to the accompanying drawings.

[0053] In the FC-AE-1553 switched network, there are mainly three types of nodes: network controller NC, network terminal NT, and switch SWITCH. The network controller NC controls the transmission of messages in the network; the network terminal NT will perform data transmission or other operations after receiving a control command from the network controller NC. The switch SWITCH is responsible for message forwarding in the network. In the FC-AE-1553 switched network, there may be multiple network controllers NC, multiple network terminals NT and multiple switches SWITCH. A network controller NC or network terminal NT is only directly connected to a certain switch. The network controller NC or network terminal NT and the s...

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Abstract

The invention discloses a routing method in an FC-AE-1553 switch-type network, and the method comprises the steps: first grading links, classifying different types of messages and setting priorities,and setting a plurality of message transmission queues; and then building a graph model of a complex topology network based on the graph theory; generating a hard real-time link set according to the application demands; calculating a plurality of unrelated candidate routes for the transmission of a hard real-time message based on the graph theory and a shortest path algorithm, and setting a link reserved bandwidth; calculating the maximum feasible flow of all candidate paths based on the link reserved bandwidth and the maximum stream solving theory; Finally, describing the respective transmission strategies of hard real-time messages and non-hard real-time messages. The invention solves the problems that the switch-type network (complex topology network) based on the FC-AE-1553 protocol needs to ensure the real-time and reliability of data transmission, and needs reasonable flow control for different types of traffic.

Description

technical field [0001] The invention relates to the field of communication networks, in particular to the technical field of routing in aviation bus networks, in particular to a routing method in FC-AE-1553 switching networks. Background technique [0002] The avionics data bus is the "central nerve" and data communication hub of the avionics integrated system. The FC-AE-1553 avionics bus protocol based on fiber channel has become a new generation of avionics due to its high bandwidth, high reliability, and easy expansion. The trend of data bus protocol is more and more obvious. With the improvement of the comprehensiveness of the avionics system, the complexity of the bus structure, and the widening of the scope of application, the avionics system puts forward higher requirements for the bus topology and performance. [0003] Hard real-time reliable routing refers to a routing that ensures high real-time and high reliability of messages. It guarantees the priority transmi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/729H04L12/721H04L12/725H04L12/851H04L12/865H04L45/125H04L47/6275
CPCH04L45/125H04L45/14H04L45/30H04L47/24H04L47/6275
Inventor 张向利王迪张红梅闫坤
Owner GUILIN UNIV OF ELECTRONIC TECH
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