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Prevention measures for avoiding unexpected drifting of marine component in recovery equipment of significant metals from sea water. Positioning and monitoring system for marine component and improvement of its positioning accuracy

Abstract

Positioning and monitoring system for marine component in recovery equipment of significant metals from seawater with adsorbent was designed and assembled to avoid unexpected drifting accident. This system which was set on float part of the marine component obtains the positioning data from GPS satellites and sends them to Takasaki and Mutsu establishments through satellite communication. In both establishments, the position data were shown in computer displays. As characteristic test for 20 days in the real sea, 262 data were obtained every 2 hours. The twice of the distance root mean square (2DRMS) was 223.7 m. To improve this performance, three new functions were added to the present firmware. There are to raise positioning resolutions in longitude and latitude from 0.001 to 0.00001 degree, to remove the reflection of GPS signal from sea surface, and to average remaining three positioning data after maximum and minimum data were omitted from continuous five positioning data. The improved system shows the 2DRMS positioning of 15.5 m. This performance is enough to prevent marine component from its drifting accident. (author)
Authors:
Tamada, Masao; Kasai, Noboru; Seko, Noriaki; Hasegawa, Shin; Takeda, Hayato; Katakai, Akio; Sugo, Takanobu; [1]  Kawabata, Yukiya; [2]  Onuma, Kenji [3] 
  1. Japan Atomic Energy Research Inst., Takasaki, Gunma (Japan). Takasaki Radiation Chemistry Research Establishment
  2. Ebara Reseach Co., Ltd., Fujisawa, Kanagawa (Japan)
  3. Mitsubishi Materials Corp., Tokyo (Japan)
Publication Date:
Nov 01, 2001
Product Type:
Technical Report
Report Number:
JAERI-Tech-2001-065
Resource Relation:
Other Information: 3 refs., 20 figs., 8 tabs.; PBD: Nov 2001
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; SEAWATER; METALS; ADSORBENTS; PERFORMANCE TESTING; SEAS; EQUIPMENT; POSITIONING; SATELLITES; DATA TRANSMISSION SYSTEMS; MONITORING; ACCURACY; SPECIFICATIONS; EVALUATION
OSTI ID:
20265978
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
TRN: JP0150831
Availability:
Also available from JAERI; URL: http://jolisf.tokai.jaeri.go.jp/pdf/tec/JAERI-Tech-2001-065.pdf; INIS
Submitting Site:
JPN
Size:
47 pages
Announcement Date:

Citation Formats

Tamada, Masao, Kasai, Noboru, Seko, Noriaki, Hasegawa, Shin, Takeda, Hayato, Katakai, Akio, Sugo, Takanobu, Kawabata, Yukiya, and Onuma, Kenji. Prevention measures for avoiding unexpected drifting of marine component in recovery equipment of significant metals from sea water. Positioning and monitoring system for marine component and improvement of its positioning accuracy. Japan: N. p., 2001. Web.
Tamada, Masao, Kasai, Noboru, Seko, Noriaki, Hasegawa, Shin, Takeda, Hayato, Katakai, Akio, Sugo, Takanobu, Kawabata, Yukiya, & Onuma, Kenji. Prevention measures for avoiding unexpected drifting of marine component in recovery equipment of significant metals from sea water. Positioning and monitoring system for marine component and improvement of its positioning accuracy. Japan.
Tamada, Masao, Kasai, Noboru, Seko, Noriaki, Hasegawa, Shin, Takeda, Hayato, Katakai, Akio, Sugo, Takanobu, Kawabata, Yukiya, and Onuma, Kenji. 2001. "Prevention measures for avoiding unexpected drifting of marine component in recovery equipment of significant metals from sea water. Positioning and monitoring system for marine component and improvement of its positioning accuracy." Japan.
@misc{etde_20265978,
title = {Prevention measures for avoiding unexpected drifting of marine component in recovery equipment of significant metals from sea water. Positioning and monitoring system for marine component and improvement of its positioning accuracy}
author = {Tamada, Masao, Kasai, Noboru, Seko, Noriaki, Hasegawa, Shin, Takeda, Hayato, Katakai, Akio, Sugo, Takanobu, Kawabata, Yukiya, and Onuma, Kenji}
abstractNote = {Positioning and monitoring system for marine component in recovery equipment of significant metals from seawater with adsorbent was designed and assembled to avoid unexpected drifting accident. This system which was set on float part of the marine component obtains the positioning data from GPS satellites and sends them to Takasaki and Mutsu establishments through satellite communication. In both establishments, the position data were shown in computer displays. As characteristic test for 20 days in the real sea, 262 data were obtained every 2 hours. The twice of the distance root mean square (2DRMS) was 223.7 m. To improve this performance, three new functions were added to the present firmware. There are to raise positioning resolutions in longitude and latitude from 0.001 to 0.00001 degree, to remove the reflection of GPS signal from sea surface, and to average remaining three positioning data after maximum and minimum data were omitted from continuous five positioning data. The improved system shows the 2DRMS positioning of 15.5 m. This performance is enough to prevent marine component from its drifting accident. (author)}
place = {Japan}
year = {2001}
month = {Nov}
}