A collaborative and autonomous deployment method for multi-UAV communication relay platforms

Abstract

The invention discloses a cooperative and autonomous layout method of multi-unmanned aerial vehicle communication relay platforms. The method comprises the following steps: A. Multi-unmanned relay platform cooperative system and framework design; B. Communication geographical environment and communication electromagnetic environment modeling ; C. Multi-UAV cooperative relay node location planning. The invention uses the UAV as a communication relay platform, fully utilizes the mobility and autonomy advantages of the UAV, can model complex terrain environments and electromagnetic propagation, and provides scientific model support for the location planning of communication relay nodes. Using a heuristic algorithm for relay node location planning improves the real-time and effectiveness of the algorithm, and adopts distributed task allocation and UAV control methods, which can make full use of the autonomous movement characteristics and team advantages of the multi-robot system, making the central The application range of the successor system is wider, the communication maintenance ability is stronger, and the deployment of nodes is faster and more efficient.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a collaborative and autonomous deployment method for multi-unmanned aerial vehicle communication relay platforms. Background technique [0002] Line-of-Sight Communications (LoSC) has the characteristics of high information transmission rate and good confidentiality. Therefore, in many application backgrounds (for example, high-definition video live broadcast), it is necessary to maintain line-of-sight communication between execution units to achieve large Real-time transmission of capacity information, however, due to the occlusion of environmental obstacles and the limitation of communication distance, it is impossible to directly establish the line-of-sight connectivity relationship between different units. A series of relay nodes realize the establishment of connectivity between execution units. This problem is called "Relay Node Placement (RNP)". [0003] R...

AI Technical Summary

Problems solved by technology

RNP can be understood as generating a relay tree (Relay Tree) with the base station (Base Station, BS) as the root node, the target station (Target Station, TS) as the leaf node, and the relay station (Relay Station, RS) as the intermediate node. RT), the goal of its planning is to determine the number and location of relay nodes to meet certain criteria (for example, the shortest distance sum, the highest connectivity, etc.), the existing research results have proved that RNP is an NP-hard problem, so it is difficult to find Optimal solution

Images