Development of Bayesian Decision Making System for Ship Navigation

船舶导航贝叶斯决策系统的开发

• 批准号: 11650942
• 负责人: ISEKI Toshio
• 金额: $ 1.28万
• 依托单位: Tokyo University of Mercantile Marine
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650942/
• 关键词: Bayesian modeling procedure; Directional wave spectrum; Seakeaping; Hyperparameter; ABIC; Onboard tests

The main objective of this research work is development of a simple decision making system for merchant ships. In the system, the ship's hull is recognized as a wave probe and the ship motion data are used for the estimation of sea states and calculation of the several ship responses as the information for the navigation. The head investigator has already achieved at the basic research work of the Bayesian estimation of the directional wave spectrum using the ship motion data. In 1999, therefore, the following results could be obtained by this research project :(1) Making up the hardware : Using the FOG (Fiver Optic Gyroscope) system, the hardware by which the ship motion data signal can be imported through the"COM port"of personal computer systems was made for general purpose.(2) Improvement of the algorithm : Bayesian estimation algorithm for the estimation of wave spectrum was modified for improvement of computational efficiency.(3) Development of the application software : The appl … More ication software that can store ten minutes length time history data every one hour was developed. Microsoft Visual C++ was selected as the computer language for the adaptability to the Windows OS.(4) On board tests : In November 1999 and March 2000, three on board tests were carried out using the training ship Shiojimaru and the application program was revised.Based on the above-mentioned results, the following research work were performed.(1) Installation and functional test : The developed system was installed on the bulk carrier on the line between Japan and Australia. The functional test was continued around a half year and bugs were found and fixed in the application program, the system was tested under the automatic operation(2) Acquisition of the ship motion data in actual voyages :In the later half of the functional test, the system was operated automatically during several voyages and the measured data were stored in the hard disk of the notebook computer. The application program was modified to have the functions of not only storage of the ten minutes time history data but also creations of the statistical summary CSV file. Therefore the out-lines of the voyages are easily grasped.(3) Making of the reportThe report of this research will be made just as planned.As the problem transferred form the last fiscal year, the algorithm of the Bayesian estimation should be modified for on-line calculation. The present system is now equipped on the container ship operated on the north pacific line and the measurement is continued. Less

这项研究工作的主要目标是开发一个简单的商船决策系统。在该系统中，船体被识别为波浪探测器，船舶运动数据用于估计海况并计算船舶的几种响应，作为导航信息。课题组长已完成利用船舶运动数据进行定向波谱贝叶斯估计的基础研究工作。因此，1999年，该研究项目取得了以下成果：（1）硬件的构成：利用FOG（五光学陀螺仪）系统，制作了通用硬件，通过个人计算机系统的“COM端口”导入船舶运动数据信号。（2）算法的改进：对波谱估计的贝叶斯估计算法进行了修改，以提高计算能力。 (3)应用软件开发：开发了每小时可存储十分钟长度历史数据的应用软件。选择Microsoft Visual C++作为适应Windows操作系统的计算机语言。(4)船上测试：1999年11月和2000年3月，在盐岛丸号训练舰上进行了3次船上测试，并对应用程序进行了修改。根据上述结果，进行了以下研究工作。(1)安装和功能测试：将开发的系统安装在日本和澳大利亚航线的散货船上。功能测试持续了半年左右，发现并修复了应用程序中的错误，系统在自动运行下进行了测试。（2）实际航行中船舶运动数据的采集：功能测试的后半程，系统在多次航行中自动运行，测量数据存储在笔记本电脑的硬盘中。应用程序被修改为不仅具有存储十分钟时间历史数据的功能，还具有创建统计摘要CSV文件的功能。 (3)报告的制作本次研究的报告将按计划进行。由于问题是从上一财年转移过来的，因此需要对贝叶斯估计的算法进行修改，以便进行在线计算。目前该系统已装备在北太平洋航线上运营的集装箱船上，并且测量仍在继续。较少的

项目成果

Toshio Iseki and Daisuke Terada and Kohei Ohtsu: "Study on Stochastic Guidance System for Heavy Weather Operation"The Journal of Japan Institute of Navigation. Vol.104 (Now printing). (2001)

Toshio Iseki、Daisuke Terada 和 Kohei Ohtsu：“恶劣天气操作随机制导系统的研究”日本航海学会杂志。

Toshio Iseki,Daisuke Terada and Kohei Ohtsu: "Study on Stochastic Guidance System for Heavy Weather Operation"Proc.of the 2nd International Congress on Maritime Technological Innovations and Research. 30-43 (2000)

Toshio Iseki、Daisuke Terada 和 Kohei Ohtsu：“恶劣天气操作随机制导系统研究”第二届国际海事技术创新与研究大会论文集。

寺田大介,井関俊夫: "船体縦曲げ応力のBayes推定"日本航海学会論文集. 104(発表・校正済み印刷中). (2001)

Daisuke Terada、Toshio Iseki：“船体垂直弯曲应力的贝叶斯估计”日本航海学会会议记录 104（发表、校对和印刷）。

Toshio Iseki: "Study on Wave Monitoring System using Ship's Hull Motions -Accuracy Comparisons between the Data of Vertical Acceleration and wave Height."The Journal of Japan Institute of Navigation. Vol.102. 107-113 (2000)

Toshio Iseki：“使用船体运动的波浪监测系统的研究 - 垂直加速度和波高数据之间的精度比较”。日本航海学会杂志。

井関俊夫: "船体波浪計化法による波浪モニタリングについて-上下加速度と船載式波高計による推定精度の比較-"日本航海学会論文集. 102. 107-113 (2000)

Toshio Iseki：“关于使用船体波浪测量方法进行波浪监测 - 使用垂直加速度和船载波高计的估计精度的比较 -”日本航海学会汇刊 102. 107-113 (2000)。