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해저 케이블 매설 로봇의 수중 매니퓰레이션을 위한 터치스크린 기반 원격 조종 어시스턴스 기술 개발

Touch Screen Based Assistance Technique for Underwater Manipulation of Cable Burying ROV

Journal of the Korean Society for Precision Engineering 2019;36(4):349-361.
Published online: April 1, 2019

1 한국로봇융합연구원 해양로봇연구본부

1 Marine Robotics R&D Division, Korea Institute of Robot and Convergence

#E-mail: sandman@kiro.re.kr, TEL: +82-54-279-0459
• Received: February 1, 2019   • Revised: March 7, 2019   • Accepted: March 8, 2019

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Citations

Citations to this article as recorded by  Crossref logo
  • Study for Operation Method of Underwater Cable and Pipeline Burying ROV Trencher using Barge and Its Application in Real Construction
    Min-Gyu Kim, Hyungjoo Kang, Mun-Jik Lee, Gun Rae Cho, Ji-Hong Li, Tae-Sam Yoon, Jaeheung Ju, Han-Wan Kwak
    Journal of Ocean Engineering and Technology.2020; 34(5): 361.     CrossRef

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Touch Screen Based Assistance Technique for Underwater Manipulation of Cable Burying ROV
J. Korean Soc. Precis. Eng.. 2019;36(4):349-361.   Published online April 1, 2019
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J. Korean Soc. Precis. Eng.. 2019;36(4):349-361.   Published online April 1, 2019
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Touch Screen Based Assistance Technique for Underwater Manipulation of Cable Burying ROV
Image Image Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 URI-T, a ROV for underwater cable burial
Fig. 2 Schematic diagram of URI-T
Fig. 3 Operation of vertical thrusters in URI-T
Fig. 4 Water-jet system included in URI-T
Fig. 5 Manipulators and tools for cable maintenance
Fig. 6 Performance verification in shallow sea
Fig. 7 Performance verification in the sea of 500 m water depth
Fig. 8 Inputs gathered via touch screen for position estimation
Fig. 9 Translation estimation of target
Fig. 10 Orientation estimation of target
Fig. 11 Overall control structure for assisted teleoperation
Fig. 12 Graph of cost function in Eq. 29
Fig. 13 Experimental setup
Fig. 14 Box plots of experimental results
Touch Screen Based Assistance Technique for Underwater Manipulation of Cable Burying ROV

Brief specification of URI-T

Contents Specification
Size 6.5 × 5.0 × 4.5 m
Weight 21 ton (air) / 500 kg (water)
Power 933 HP
- HPU: 333HPU
- Water pump: 300 HP × 2 EA
Max. water depth 2,500 m
Max. burying depth 3.0 m
Max. burying speed 2.0 km/hr
Max. swimming speed 3.0 knots

Detailed description of the task

Step of Task Description Full tele-op. Assisted tele-op.
#0 Initial posture Robot looks forward (same posture in left picture of Fig. 13).
Gripper is closed
- -
#1 Approaching Moving robot to the tool Manuala) Assistedb)
#2 Seizing Opening the gripper
Delicate positioning of robot to seize the tool
Closing the gripper
Manual Manual
#3 Moving Moving the tool to the cable
Delicate positioning of the tool on the cable
Opening the gripper(laying the tool on the cable)
Manual Assisted

a) Manual: operation using conventional method (operator generates commands for every DOF of the manipulator)

b) Assisted: operation using proposed assistance algorithm (operator generates command using touch screen inputs)

Detailed description of the task

Approaching Seizing Moving Total
① Avg. time of full teleoperation (sec) 55.57 22.33 66.60 147.69
② Avg. time of assisted teleoperation (sec) 29.53 20.46 56.07 106.06
(① - ②) / ① *100(%) 47.0% 19.3% 15.8% 28.2%
p-value 0.0013 0.0755 0.0462 0.0024
Table 1 Brief specification of URI-T
Table 2 Detailed description of the task

a) Manual: operation using conventional method (operator generates commands for every DOF of the manipulator)

b) Assisted: operation using proposed assistance algorithm (operator generates command using touch screen inputs)

Table 3 Detailed description of the task