A method and a system for configuring network traffic of an unmanned aerial vehicle based on SDN distributed control

Abstract

The invention provides an SDN distributed control unmanned aerial vehicle network flow configuration method and a system thereof. According to the data flow information, the original node and the target node of the new path are obtained, and the local network topology table is transformed into a directed graph with weights. According to the link weights in the directed graph, the original node andthe target node are used to calculate the new path for the data flow. Sending a MOD message to a UAV node controller on the new path according to the data stream information priority. The UAV node controller that receives the MOD message replies to the corresponding ACK message, completes the route switching, and realizes the traffic configuration. In order to solve the problem of communication interruption caused by UAV leaving the network due to power exhaustion in the network, by distinguishing the priority of data stream, the high-level users can finish the traffic planning first to realize the communication.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicle networks, and relates to a method and system for implementing traffic configuration in an unmanned aerial vehicle network under SDN distributed control. Background technique [0002] The drone network needs to support the dynamic movement of drones and frequent changes in network topology, and due to differences between upper-layer protocols, it may be difficult for drones to work normally in different network environments. Secondly, the limited flight time of drones leads to network The normal communication time is limited, so the entire UAV network is required to achieve comprehensive and effective management and resource utilization. Software-defined networking (SDN) separates the control layer from the data layer, and controls the network through software-defined methods. Its application in the UAV network solves the above problems encountered in the UAV network. The software ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a traffic configuration method and system based on SDN distributed control, to overcome the problem in the prior art that the unmanned aerial vehicle is disconnected from the unmanned aerial vehicle network due to the exhaustion of power. In the UAV network controlled by the UAV, the traffic flowing through the UAV is planned to other paths in advance to realize the pre-planning of the UAV traffic. When the UAV is out of the UAV network due to battery exhaustion Can still maintain normal communication with users

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