Deep Reinforcement Learning for the Visual Servoing Control of UAVs with FOV Constraint

  1. Fu, Gui 12
  2. Chu, Hongyu 1
  3. Liu, Liwen 2
  4. Fang, Linyi 2
  5. Zhu, Xinyu 2
  6. Horri, Nadjim
  7. Khan, Samir
  8. Lappas, Vaios
  9. González Aguilera, Diego 3
  1. 1 School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China
  2. 2 Institute of Electronic and Electrical Engineering, Civil Aviation Flight University of China, Guanghan 618307, China
  3. 3 Universidad de Salamanca
    info

    Universidad de Salamanca

    Salamanca, España

    ROR https://ror.org/02f40zc51

Journal:
Drones

ISSN: 2504-446X

Year of publication: 2023

Volume: 7

Issue: 6

Pages: 375

Type: Article

DOI: 10.3390/DRONES7060375 GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Drones

Abstract

Visual servoing is a control method that utilizes image feedback to control robot motion, and it has been widely applied in unmanned aerial vehicle (UAV) motion control. However, due to field-of-view (FOV) constraints, visual servoing still faces challenges, such as easy target loss and low control efficiency. To address these issues, visual servoing control for UAVs based on the deep reinforcement learning (DRL) method is proposed, which dynamically adjusts the servo gain in real time to avoid target loss and improve control efficiency. Firstly, a Markov model of visual servoing control for a UAV under field-of-view constraints is established, which consists ofquintuplet and considers the improvement of the control efficiency. Secondly, an improved deep Q-network (DQN) algorithm with a target network and experience replay is designed to solve the Markov model. In addition, two independent agents are designed to adjust the linear and angular velocity servo gains in order to enhance the control performance, respectively. In the simulation environment, the effectiveness of the proposed method was verified using a monocular camera.

Funding information

Funders

  • National Natural Science Foundation of China
    • 61601382
  • Fund project for basic scientific research expenses of central universities
    • J2022-024
    • J2022-07
  • Independent research project of the Key Laboratory of Flight Techniques and Flight Safety
    • FZ2021ZZ04

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