Dynamic network access method of WAIC network access equipment based on pre-configured network topology

Abstract

The invention provides a dynamic network access method of WAIC network access equipment based on pre-configured network topology, which comprises the following steps of: establishing a network topology structure containing a plurality of nodes according to requirements and configuring network topology information: after electrification, initializing network access management information of each node based on the pre-configured network topology information, initialization information is loaded to each node; on the basis of the Poling frame and the Poling response frame, adjacent nodes in the working range of each node are scanned; based on the initialization information of each node, carrying out identity recognition on all adjacent nodes scanned by each node and marking a recognition state; and performing data link network access based on the Connect frame and the Connect response frame to complete dynamic network access. According to the dynamic network access method designed by the invention, each node in the network topology structure is pre-configured before network access, so that the intrusion of hidden nodes (namely illegal nodes and connectionless nodes) can be effectively prevented, and the reliable transmission of application data is improved.

Description

technical field [0001] The invention belongs to the technical field of network communication, and relates to a network access method (WAIC for short) of a wireless avionics communication network access device, in particular to a dynamic network access method of a WAIC network access device based on a pre-configured network topology. Background technique [0002] With the continuous development of the aviation manufacturing industry, the production cost of aircraft is gradually reduced, and the flight safety and reliability are continuously improved. Among them, the wireless network gradually replaces the wired network for communication due to its advantages of flexible deployment and lightening the weight of the aircraft. The wireless network access follows the 802.11 standard , Follow the three steps of scanning, authentication and connection in the process of network access management. [0003] Wireless Avionics Intra-Communications (Wireless Avionics Intra-Communications,...

AI Technical Summary

Problems solved by technology

Compared with the traditional airborne communication system, WAIC network communication is mainly used in safety-related systems such as sensors, actuators, and airborne equipment operation status monitoring, and access to the network; however, because the equipment connected to the WAIC network is distributed in different cabins, There are factors such as different communication requirements between devices, electromagnetic influence between various electronic devices in each cabin, etc. In the process of establishing communication, there are phenomena such as communication nodes between adjacent electronic devices not being discovered or network access management being unable to complete communication for a long time , thus seriously affecting the communication performance of the airborne WAIC network, causing the loss of key airborne information and affecting the normal operation of the aircraft

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