Visual-Aided Shared Control of Semi-Autonomous Underwater Vehicle for Efficient Underwater Grasping

Human intelligence has the advantage for making high-level decisions in the remote control of underwater vehicles, while autonomous control is superior for accurate and fast close-range pose adjustment. Combining the advantages of both remote and autonomous control, this paper proposes a visual-aide...

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Main Authors: Tianlei Wang, Fei Ding, Zhenxing Sun
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/11/9/1837
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author Tianlei Wang
Fei Ding
Zhenxing Sun
author_facet Tianlei Wang
Fei Ding
Zhenxing Sun
author_sort Tianlei Wang
collection DOAJ
description Human intelligence has the advantage for making high-level decisions in the remote control of underwater vehicles, while autonomous control is superior for accurate and fast close-range pose adjustment. Combining the advantages of both remote and autonomous control, this paper proposes a visual-aided shared-control method for a semi-autonomous underwater vehicle (sAUV) to conduct flexible, efficient and stable underwater grasping. The proposed method utilizes an arbitration mechanism to assign the authority weights of the human command and the automatic controller according to the attraction field (AF) generated by the target objects. The AF intensity is adjusted by understanding the human intention, and the remote-operation command is fused with a visual servo controller. The shared controller is designed based on the kinematic and dynamic models, and model parameter uncertainties are also addressed. Efficient and stable control performance is validated by both simulation and experiment. Faster and accurate dynamic positioning in front of the target object is achieved using the shared-control method. Compared to the pure remote operation mode, the shared-control mode significantly reduces the average time consumption on grasping tasks for both skilled and unskilled operators.
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spelling doaj.art-4f78c53476d148ff889199a65d298f192023-11-19T11:28:03ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-09-01119183710.3390/jmse11091837Visual-Aided Shared Control of Semi-Autonomous Underwater Vehicle for Efficient Underwater GraspingTianlei Wang0Fei Ding1Zhenxing Sun2College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, ChinaCollege of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, ChinaCollege of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, ChinaHuman intelligence has the advantage for making high-level decisions in the remote control of underwater vehicles, while autonomous control is superior for accurate and fast close-range pose adjustment. Combining the advantages of both remote and autonomous control, this paper proposes a visual-aided shared-control method for a semi-autonomous underwater vehicle (sAUV) to conduct flexible, efficient and stable underwater grasping. The proposed method utilizes an arbitration mechanism to assign the authority weights of the human command and the automatic controller according to the attraction field (AF) generated by the target objects. The AF intensity is adjusted by understanding the human intention, and the remote-operation command is fused with a visual servo controller. The shared controller is designed based on the kinematic and dynamic models, and model parameter uncertainties are also addressed. Efficient and stable control performance is validated by both simulation and experiment. Faster and accurate dynamic positioning in front of the target object is achieved using the shared-control method. Compared to the pure remote operation mode, the shared-control mode significantly reduces the average time consumption on grasping tasks for both skilled and unskilled operators.https://www.mdpi.com/2077-1312/11/9/1837semi-autonomous underwater vehicleshared controlvisual servounderwater grasping
spellingShingle Tianlei Wang
Fei Ding
Zhenxing Sun
Visual-Aided Shared Control of Semi-Autonomous Underwater Vehicle for Efficient Underwater Grasping
Journal of Marine Science and Engineering
semi-autonomous underwater vehicle
shared control
visual servo
underwater grasping
title Visual-Aided Shared Control of Semi-Autonomous Underwater Vehicle for Efficient Underwater Grasping
title_full Visual-Aided Shared Control of Semi-Autonomous Underwater Vehicle for Efficient Underwater Grasping
title_fullStr Visual-Aided Shared Control of Semi-Autonomous Underwater Vehicle for Efficient Underwater Grasping
title_full_unstemmed Visual-Aided Shared Control of Semi-Autonomous Underwater Vehicle for Efficient Underwater Grasping
title_short Visual-Aided Shared Control of Semi-Autonomous Underwater Vehicle for Efficient Underwater Grasping
title_sort visual aided shared control of semi autonomous underwater vehicle for efficient underwater grasping
topic semi-autonomous underwater vehicle
shared control
visual servo
underwater grasping
url https://www.mdpi.com/2077-1312/11/9/1837
work_keys_str_mv AT tianleiwang visualaidedsharedcontrolofsemiautonomousunderwatervehicleforefficientunderwatergrasping
AT feiding visualaidedsharedcontrolofsemiautonomousunderwatervehicleforefficientunderwatergrasping
AT zhenxingsun visualaidedsharedcontrolofsemiautonomousunderwatervehicleforefficientunderwatergrasping