Real-time creation method for virtual channel link of avionics system

Abstract

The invention discloses a real-time creation method for a virtual channel link of an avionics system, and aims to provide a virtual channel link creation method which is simple, reliable, rapid, flexible and low in complexity. The invention is realized through the following technical scheme: the method comprises the following steps: based on a high-speed serial RapidIO bus, sending a virtual channel link creation request to node management software, taking a channel name as a primary identifier of a virtual channel link between the nodes of the two communication parties, and injecting the virtual channel name and virtual channel related parameters of the nodes of the two communication parties through an external micro control unit (MCU) or each communication node debugging interface; then,after the node management software stores the virtual channel creation request information initiated by each communication node, matching the consistency of the related parameters of the receiving party and the transmitting party; and according to a consistency judgment result, issuing the virtual channel related configuration information to the related communication nodes, waiting for each related node to return an acknowledgement character ACK signal, and determining whether virtual channel link creation work is completed or not.

Description

technical field [0001] The invention relates to a method for creating a virtual channel link in an avionics system in real time in the field of avionics communications Background technique [0002] In recent years, with the emergence of new attractive multimedia services in different fields, people have invested a lot of research work into the construction of ATM network in asynchronous transfer mode. In order to facilitate the control of business flow and the management of network resources, ATM network introduces the concept of VP (virtualpath). The ATM switch is completed based on the cell header information. An ATM switch may only use the virtual channel (VirtualpathIdentifier, VPI) part of the cell header, or only use the virtual channel identifier (VCI) part, or use both parts to decide how to forward the cell. A virtual channel identifier simply refers to a logical number used to identify a virtual channel for communication. A virtual channel link is a group of lin...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the existing technology and the requirements for efficient and flexible deployment and operation of multi-nodes in the avionics system, to provide a kind of low manpower maintenance cost, high real-time performance, not restricted by the actual function of the hardware, and can reduce A virtual channel link creation method for avionics systems based on software and hardware coupling to solve the problems of high manpower maintenance costs, low real-time performance, and high software and hardware coupling in existing avionics systems.

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