Autonomous Surveying of Plantation Forests Using Multi-Rotor UAVs

Modern plantation forest procedures still rely heavily on manual data acquisition in the inventory process, limiting the quantity and quality of the collected data. This limitation in collection performance is often due to the difficulty of traversing the plantation forest environment on foot. This...

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Main Authors: Tzu-Jui Lin, Karl A. Stol
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Drones
Subjects:
Online Access:https://www.mdpi.com/2504-446X/6/9/256
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author Tzu-Jui Lin
Karl A. Stol
author_facet Tzu-Jui Lin
Karl A. Stol
author_sort Tzu-Jui Lin
collection DOAJ
description Modern plantation forest procedures still rely heavily on manual data acquisition in the inventory process, limiting the quantity and quality of the collected data. This limitation in collection performance is often due to the difficulty of traversing the plantation forest environment on foot. This work presents an autonomous system for exploring plantation forest environments using multi-rotor UAVs. The proposed method consists of three parts: waypoint selection, trajectory generation, and trajectory following. Waypoint selection is accomplished by estimating the rows’ locations within the environment and selecting points between adjacent rows. Trajectory generation is completed using a non-linear optimization-based constant speed planner and the following is accomplished using a model predictive control approach. The proposed method is tested extensively in simulation against various procedurally generated forest environments, with results suggesting that it is robust against variations within the scene. Finally, flight testing is performed in a local plantation forest, demonstrating the successful application of our proposed method within a complex, uncontrolled environment.
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spelling doaj.art-d142c9c123994490b591310f6c0852832023-11-23T15:54:02ZengMDPI AGDrones2504-446X2022-09-016925610.3390/drones6090256Autonomous Surveying of Plantation Forests Using Multi-Rotor UAVsTzu-Jui Lin0Karl A. Stol1Department of Mechanical and Mechatronics Engineering, The University of Auckland, Auckland 1010, New ZealandDepartment of Mechanical and Mechatronics Engineering, The University of Auckland, Auckland 1010, New ZealandModern plantation forest procedures still rely heavily on manual data acquisition in the inventory process, limiting the quantity and quality of the collected data. This limitation in collection performance is often due to the difficulty of traversing the plantation forest environment on foot. This work presents an autonomous system for exploring plantation forest environments using multi-rotor UAVs. The proposed method consists of three parts: waypoint selection, trajectory generation, and trajectory following. Waypoint selection is accomplished by estimating the rows’ locations within the environment and selecting points between adjacent rows. Trajectory generation is completed using a non-linear optimization-based constant speed planner and the following is accomplished using a model predictive control approach. The proposed method is tested extensively in simulation against various procedurally generated forest environments, with results suggesting that it is robust against variations within the scene. Finally, flight testing is performed in a local plantation forest, demonstrating the successful application of our proposed method within a complex, uncontrolled environment.https://www.mdpi.com/2504-446X/6/9/256unmanned aerial vehicleexploration planningtrajectory planningplantation forests
spellingShingle Tzu-Jui Lin
Karl A. Stol
Autonomous Surveying of Plantation Forests Using Multi-Rotor UAVs
Drones
unmanned aerial vehicle
exploration planning
trajectory planning
plantation forests
title Autonomous Surveying of Plantation Forests Using Multi-Rotor UAVs
title_full Autonomous Surveying of Plantation Forests Using Multi-Rotor UAVs
title_fullStr Autonomous Surveying of Plantation Forests Using Multi-Rotor UAVs
title_full_unstemmed Autonomous Surveying of Plantation Forests Using Multi-Rotor UAVs
title_short Autonomous Surveying of Plantation Forests Using Multi-Rotor UAVs
title_sort autonomous surveying of plantation forests using multi rotor uavs
topic unmanned aerial vehicle
exploration planning
trajectory planning
plantation forests
url https://www.mdpi.com/2504-446X/6/9/256
work_keys_str_mv AT tzujuilin autonomoussurveyingofplantationforestsusingmultirotoruavs
AT karlastol autonomoussurveyingofplantationforestsusingmultirotoruavs