Abstract

This paper tackles the problem of sensing coverage for multiple Unmanned Aerial Vehicles (UAVs) with an approach that takes into account the reciprocal between neighboring UAVs to reduce the oscillation of their trajectories. The proposed reciprocal decision approach, which is performed in three steps, is self-organized, distributed and autonomous. First, in contrast to the traditional method modeled and optimized in configuration space, the sensing coverage problem is directly presented as an optimal reciprocal coverage velocity (ORCV) in velocity space that is concise and effective. Second, the ORCV is determined by adjusting the action velocity out of weak coverage velocity relative to neighboring UAVs to demonstrate that the ORCV supports a collision-avoiding assembly. Third, a corresponding random probability method is proposed for determining the optimal velocity in the ORCV. The results from the simulation indicate that the proposed method has a high coverage rate, rapid convergence rate and low deadweight loss. In addition, for up to 103-size UAVs, the proposed method has excellent scalability and collision-avoiding ability.

Highlights

  • Sensing coverage with a Unmanned Aerial Vehicles (UAVs) swarm is an important issue of how to cover an accessible region of interest (ROI) by multiple UAVs with specified sensors in an optimal manner, i.e., achieving the optimal performance including low coverage time, high coverage rate and so on

  • The random probability method utilizes the concept of convergence in probability, where the mean of abundant random optimal velocities will approach the center of the optimal velocity space, despite the specific shape of optimal reciprocal coverage velocity (ORCV) being unknown

  • A reciprocal decision approach is proposed for sensing coverage with multi-UAV swarms

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Summary

Introduction

Sensing coverage with a UAV swarm is an important issue of how to cover an accessible region of interest (ROI) by multiple UAVs with specified sensors in an optimal manner, i.e., achieving the optimal performance including low coverage time, high coverage rate and so on. Earlier works on the coverage decision problem focused on the methods by which a single UAV covers the ROI, such as sweep manner [6,7], area decomposition [8,9] and process occasion [10]. Two methods of multi-UAV cooperating coverage are used: centralized decision and distributed decision The former method can achieve optimal deployment and action of the UAVs based on global information; the expandability is limited by its exponentially increasing computation [11,12]. A self-organized reciprocal decision approach for sensing coverage with multi-UAV swarms is proposed, whose modeling and optimization are performed in velocity space directly with no need for determining optimal parameters through repeated experiments.

Reciprocal Decision Approach
Two-UAV Cooperative Coverage
Multi-UAV Swarm Coverage
Collision
Avoiding Collision with Obstacles
A O most weak coverage
Random Probability Method
Optimum Available
Vacant Optimal Velocity Space
Available Set
Null Set
Results
Small‐Scale
Small-Scale
21. The in aTo 2000
16 UAVs in maximizing the center of the mountainous region at t
Conclusions and Future Work
Full Text
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