Enhanced Teaching-Learning-based Optimization for 3D Path Planning of Multicopter UAVs

TL;DR

This paper presents an enhanced teaching-learning-based optimization algorithm tailored for 3D path planning of multicopter UAVs, improving solution quality and convergence speed in complex environments.

Contribution

The paper introduces Multi-subject TLBO, an improved algorithm with new operations for better UAV path planning performance.

Findings

Proposed algorithm generates collision-free, optimal paths.

Enhanced algorithm outperforms state-of-the-art methods.

Validated with real UAV experiments.

Abstract

This paper introduces a new path planning algorithm for unmanned aerial vehicles (UAVs) based on the teaching-learning-based optimization (TLBO) technique. We first define an objective function that incorporates requirements on the path length and constraints on the movement and safe operation of UAVs to convert the path planning into an optimization problem. The optimization algorithm named Multi-subject TLBO is then proposed to minimize the formulated objective function. The algorithm is developed based on TLBO but enhanced with new operations including mutation, elite selection and multi-subject training to improve the solution quality and speed up the convergence rate. Comparison with state-of-the-art algorithms and experiments with real UAVs have been conducted to evaluate the performance of the proposed algorithm. The results confirm its validity and effectiveness in generating optimal, collision-free and flyable paths for UAVs in complex operating environments.