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

Abstract

The invention discloses a method for creating a virtual channel link in an avionics system in real time, and aims to provide a method for creating a virtual channel link that is simple, reliable, fast, flexible, and low in complexity. The present invention is realized through the following technical solutions: based on the high-speed serial RapidIO bus, a virtual channel link creation request is sent to the node management software, the channel name is used as the primary identifier of the virtual channel link between the nodes of the two communication parties, and the external micro-controller The unit MCU or the debugging interface of each communication node, inject the virtual channel name and virtual channel related parameters of the nodes of both communication parties; then, the node management software stores the virtual channel creation request information initiated by each communication node, and the related parameters of the sender and receiver. According to the consistency judgment result, the related configuration information of the virtual channel is sent to the relevant communication nodes, and wait for each relevant node to return the confirmation character ACK signal to determine whether the creation of the virtual channel link is completed.

Description

Technical field [0001] The present invention relates to the field of electronic communications aviation avionics system in real time virtual channel link creation method Background technique [0002] In recent years, with the emergence of different fields full of attractive new multimedia services, people have put a lot of work to build ATM ATM Network. In order to facilitate the management of network resources and control traffic flow, ATM network introduces the concept of virtual path VP (virtualpath) a. ATM switch according to the cell header information, based on the completed cell. An ATM switch may only use the virtual path cell header (VirtualpathIdentifier, VPI) moiety, or only virtual circuit (virtualchannelidentifier, VCI) portion, or both portions are used to determine how to forward the cell. Virtual Channel Identifier simply refers to a logical number for identifying the virtual communication channel. Virtual channel links in the virtual channel link to impart Virtua...

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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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