Work

Assembly Measurement Path Planning for Mobile Robots Using an Improved Deep Reinforcement Learning

Year: 2025

Type: article

Abstract: In addressing the challenges associated with mobile robot path planning during complex product assembly measurements, this study introduces the N-step Priority Double DQN (NDDQN) algorithm, which integrates double Q-learning and an N-step priority strategy to accelerate convergence. This approach aims to improve the obstacle avoidance capabilities of mobile robots while accelerating their learning efficiency. We conducted three grid-based obstacle avoidance simulation experiments of varying scales to compare and analyze the path planning performance of both the proximal policy optimization algorithm and the Deep Q Network algorithm. To accurately simulate real-world robotic measurement scenarios, two Gazebo environments were utilized to validate the effectiveness of our proposed algorithm. Through a comprehensive analysis of simulation results from all three algorithms, we demonstrate that the NDDQN algorithm exhibits significant effectiveness and stability in path planning. Notably, it substantially reduces iteration counts and enhances convergence speeds. This research provides a theoretical foundation for adaptive path planning in mobile robots engaged in complex product assembly measurements.

Source: Applied Sciences

DOI: 10.3390/app152312406

Authors: Gang Yuan, Bo Zhu, Yi Hu, Guangdong Tian, Zhiwu Li