NDLI: Thin cable system for ROV and AUV in JAMSTEC

Content Provider	IEEE Xplore Digital Library
Author	Murashima, T. Aoki, T. Tsukioka, S. Hyakudome, T. Yoshida, H. Nakajoh, H. Ishibashi, S. Sasamoto, R.
Copyright Year	2003
Description	Author affiliation: Japan Marine Sci. & Technol. Center, Kanagawa, Japan (Murashima, T.; Aoki, T.; Tsukioka, S.; Hyakudome, T.; Yoshida, H.; Nakajoh, H.; Ishibashi, S.)
Abstract	The ROVs with thin cable system have been developed in JAMSTEC. The thin cable system is very convenient for AUVs, therefore it has been applied for the AUVs that have been developed in JAMSTEC. Conventional ROV systems need the thick cable to supply electric power from mother ship to under-sea vehicle. In the thin cable system, a thick cable is not necessary because a power source like a battery is installed in the vehicle. The communication between the vehicle and mother ship just needs to include observation data from vehicle and control data from mother ship. The data are communicated through only one optical fiber cable that is about 1 mm in diameter. The thin cable system is called "UROV system" in JAMSTEC. UROV system has some merits because of thin cable. First, since the optical fiber cable with the length of 10 km is installed in the small cylindrical case called "spooler", the onboard system is very compact against conventional ROVs. Second, if a tether cable gets entangled in something like under-sea structure, it is considered that a vehicle can not be recovered in worst case. In the case of UROV system, the vehicle can be recovered because it has safety sequence that will release the ballast for surfacing. UROV system has other merits. For example, there is no cable drag. UROV system is available not only ROV but also AUV. URASHIMA developed by JAMSTEC has 3 operation modes. UROV mode is one of these operation modes. This mode is mainly useful for debugging in early stage of developing. When troubles happen, it is difficult for normal AUV that has no cable to know the detailed state on real-time. In that case, in URASHIMA, UROV mode is very convenient debugging of software and hardware. Furthermore, URASHIMA can survey like ROV by optical communication for UROV mode, for example, to watch the TV image on real-time. This paper describes UROV system for 7,000 m class UROV, UROV7K, and AUV, URASHIMA.
Sponsorship	Dept. of the Navy Sci. and Technol. Coalition for Enhanced Marine Resources Orincon Ceros Harbour Offshore Inc
Starting Page	2695
Ending Page	2700
File Size	557194
Page Count	6
File Format	PDF
ISBN	0933957300
DOI	10.1109/OCEANS.2003.178332
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-09-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Remotely operated vehicles Optical fiber cables Cable TV Marine vehicles Vehicle safety Debugging Power supplies Battery powered vehicles Communication system control Electronic ballasts
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in