An enhanced deep deterministic policy gradient algorithm for intelligent control of robotic arms

Aiming at the poor robustness and adaptability of traditional control methods for different situations, the deep deterministic policy gradient (DDPG) algorithm is improved by designing a hybrid function that includes different rewards superimposed on each other. In addition, the experience replay me...

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Main Authors: Ruyi Dong, Junjie Du, Yanan Liu, Ali Asghar Heidari, Huiling Chen
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Neuroinformatics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fninf.2023.1096053/full
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author Ruyi Dong
Junjie Du
Yanan Liu
Ali Asghar Heidari
Huiling Chen
author_facet Ruyi Dong
Junjie Du
Yanan Liu
Ali Asghar Heidari
Huiling Chen
author_sort Ruyi Dong
collection DOAJ
description Aiming at the poor robustness and adaptability of traditional control methods for different situations, the deep deterministic policy gradient (DDPG) algorithm is improved by designing a hybrid function that includes different rewards superimposed on each other. In addition, the experience replay mechanism of DDPG is also improved by combining priority sampling and uniform sampling to accelerate the DDPG’s convergence. Finally, it is verified in the simulation environment that the improved DDPG algorithm can achieve accurate control of the robot arm motion. The experimental results show that the improved DDPG algorithm can converge in a shorter time, and the average success rate in the robotic arm end-reaching task is as high as 91.27%. Compared with the original DDPG algorithm, it has more robust environmental adaptability.
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spelling doaj.art-8afc2f2df1304ce6b4a4974962d6b6322023-01-23T04:56:52ZengFrontiers Media S.A.Frontiers in Neuroinformatics1662-51962023-01-011710.3389/fninf.2023.10960531096053An enhanced deep deterministic policy gradient algorithm for intelligent control of robotic armsRuyi Dong0Junjie Du1Yanan Liu2Ali Asghar Heidari3Huiling Chen4College of Information and Control Engineering, Jilin Institute of Chemical Technology, Jilin, ChinaCollege of Information and Control Engineering, Jilin Institute of Chemical Technology, Jilin, ChinaCollege of Information and Control Engineering, Jilin Institute of Chemical Technology, Jilin, ChinaSchool of Surveying and Geospatial Engineering, College of Engineering, University of Tehran, Tehran, IranCollege of Computer Science and Artificial Intelligence, Wenzhou University, Wenzhou, ChinaAiming at the poor robustness and adaptability of traditional control methods for different situations, the deep deterministic policy gradient (DDPG) algorithm is improved by designing a hybrid function that includes different rewards superimposed on each other. In addition, the experience replay mechanism of DDPG is also improved by combining priority sampling and uniform sampling to accelerate the DDPG’s convergence. Finally, it is verified in the simulation environment that the improved DDPG algorithm can achieve accurate control of the robot arm motion. The experimental results show that the improved DDPG algorithm can converge in a shorter time, and the average success rate in the robotic arm end-reaching task is as high as 91.27%. Compared with the original DDPG algorithm, it has more robust environmental adaptability.https://www.frontiersin.org/articles/10.3389/fninf.2023.1096053/fullrobotic armintelligent controlreward functionexperience replay mechanismdeep deterministic policy gradient algorithmartificial intelligence
spellingShingle Ruyi Dong
Junjie Du
Yanan Liu
Ali Asghar Heidari
Huiling Chen
An enhanced deep deterministic policy gradient algorithm for intelligent control of robotic arms
Frontiers in Neuroinformatics
robotic arm
intelligent control
reward function
experience replay mechanism
deep deterministic policy gradient algorithm
artificial intelligence
title An enhanced deep deterministic policy gradient algorithm for intelligent control of robotic arms
title_full An enhanced deep deterministic policy gradient algorithm for intelligent control of robotic arms
title_fullStr An enhanced deep deterministic policy gradient algorithm for intelligent control of robotic arms
title_full_unstemmed An enhanced deep deterministic policy gradient algorithm for intelligent control of robotic arms
title_short An enhanced deep deterministic policy gradient algorithm for intelligent control of robotic arms
title_sort enhanced deep deterministic policy gradient algorithm for intelligent control of robotic arms
topic robotic arm
intelligent control
reward function
experience replay mechanism
deep deterministic policy gradient algorithm
artificial intelligence
url https://www.frontiersin.org/articles/10.3389/fninf.2023.1096053/full
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