A multi-unmanned aerial vehicle cooperative communication relay path planning method

By using a relay path planning method for multi-UAV collaborative communication, a line-of-sight link and a multi-step optimization model were constructed, which solved the communication interruption problem of multi-rotor UAVs flying at low altitude in complex mountainous areas, and achieved smooth communication links and improved algorithm efficiency.

CN117527030BActive Publication Date: 2026-04-28SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202210890319.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-27
Publication Date
2026-04-28
Estimated Expiration
2042-07-27

AI Technical Summary

Technical Problem

When multi-rotor drones fly at low altitudes in complex mountainous areas, the communication link with the ground station is interrupted due to the obstruction of mountains, and existing technologies are unable to effectively solve this problem.

Method used

A relay path planning method based on multi-UAV collaborative communication is adopted. A line-of-sight model is constructed through data acquisition and preprocessing, and line-of-sight links are established between the relay UAV and the mission UAV, and between the relay UAV and the ground station. A multi-step optimization model combining line-of-sight constraints and UAV maneuverability is used to plan the relay UAV path using the particle swarm optimization algorithm.

Benefits of technology

This effectively prevented communication link interruptions when the mission drone flew over mountain bends in a short period of time, improved communication quality, reduced the impact of severe weather, and improved algorithm efficiency.

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Abstract

The present application relates to the field of unmanned aerial vehicle communication, in particular to a multi-unmanned aerial vehicle cooperative communication relay path planning method, the multi-unmanned aerial vehicle cooperative communication relay path planning method includes the establishment of the visibility model and the description and solution of the optimization problem, the relay unmanned aerial vehicle is introduced between the task unmanned aerial vehicle and the ground station, the communication relay link between the relay unmanned aerial vehicle and the task unmanned aerial vehicle and the ground station is constructed, and the communication transmission between the task unmanned aerial vehicle and the ground station is maintained; based on the minimum energy consumption criterion, a multi-step optimization model considering the visibility constraint and the unmanned aerial vehicle maneuverability is established, and the optimization problem is solved by a particle swarm optimization algorithm. The present application solves the problem of unmanned aerial vehicle communication interruption in complex mountainous environment, avoids the communication link interruption caused by the task unmanned aerial vehicle flying through the corner of the mountain in a short time, and ensures the smooth communication link in complex mountainous environment by applying the method to multi-unmanned aerial vehicle cooperative relay communication.
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