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UBE INDUSTRIES, LTD. (4208)
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Fujitsu Field Trials Ship Performance Estimation Technology With Mitsui O.S.K. Lines and Ube Shipping & Logistics

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11/03/2017 | 05:21pm CET

TOKYO, Nov. 3 -- Fujitsu, an information and communication technology company, issued the following news release:

Fujitsu Laboratories Ltd. today announced that it has conducted a trial of a ship performance estimation technology(1) together with Mitsui O.S.K. Lines (MOL) and Ube Shipping & Logistics, Ltd. Developed by Fujitsu Laboratories and Tokyo University of Marine Science and Technology (TUMSAT), the technology can predict figures such as ship speed and fuel consumption. The results of the trial showed that the technology is capable of estimating ship performance with an estimated margin of error under 1.5 percent, both on the ocean and near the coast, and in a variety of weather and wave conditions. With this technology, it is possible for operators to accurately predict ship courses that will reduce fuel consumption, leading to lower fuel costs.

Fujitsu Limited will include this technology as an option in Fujitsu Mobility Solution SPATIOWL, a cloud service that utilizes location information, aiming to offer the service in 2018.

Details of this trial will be exhibited at the 2017 Fujitsu Forum Munich, to be held November 8-9.

Background

If maritime companies can get an accurate handle on ship performance, including changes to ship speed and fuel consumption due to weather and ocean conditions, they can plot optimal ship courses in response to such conditions along the route (this technique is called "weather routing"). For example, companies can know in advance if a slight deviation from the shortest route could actually improve fuel consumption as it avoids strong wind and waves (figure 1). In May 2016, Fujitsu Laboratories worked with TUMSAT to jointly develop technology that could estimate a ship's performance with high accuracy. Fujitsu Laboratories' proprietary high-dimensional statistical analysis technology utilizes Fujitsu Human Centric AI Zinrai, Fujitsu's AI technology, to produce highly accurate estimates.

Issues

Fujitsu Laboratories confirmed that this technology was highly accurate with estimating ship performance, through trials using operational data collected by TUMSAT's small training vessels in Japanese waters. As part of commercializing this technology, however, it was necessary to test estimation accuracy against operational data from actual commercial ships at sea, in more varied weather and ocean conditions.

Details of the Technology Trial

Now, with technical assistance from TUMSAT, Fujitsu Laboratories' high-dimensional statistical analysis, using operational data collected from commercial vessels in actual operation by MOL and Ube Shipping & Logistics, was the basis for prediction of speed and fuel consumption of the vessels, and testing performed for the margin of error compared to actual results (Figure2).

The operational data used in this trial is as follows.

1. Mitsui O.S.K. Lines, Ltd.

Ship type: Oceangoing vessel

Data: 30 data items, including wind direction, wind speed, main engine rpm, and fuel consumption

Time period: October 12, 2015 through December 13, 2015

2. Ube Shipping & Logistics

Ship type: Domestic vessel

Data: 14 data items, including wind direction, wind speed, main engine rpm, and fuel consumption

Time period: July 29, 2016 through August 22, 2016

Methodology of the Technology Trial

A total of 90 percent of the sample data was selected at random from the total amount of operational data used in the trial as training data. The remaining sample data was used as test data to calculate the mean absolute percentage error (MAPE), an index of error calculated using the formula below. In this evaluation, T refers to the number of samples of the test data, and t shows the number of the given individual sample within T, xt gives the value of the input data used to make prediction number t in the sample, while f(xt) gives the predicted value for ship speed or fuel consumption based on xt, and yt gives the actual value for ship speed or fuel consumption for sample number t. This error evaluation was repeated ten times, and the average of those results was taken as the estimated error rate compared to actual results.

When performing this error evaluation for ship speed, the model learned the relationship between ship speed data and non-ship speed data, and then the results of this learning and the non-ship speed data were used to predict ship speed. A similar error evaluation was performed for fuel consumption.

Results of the Technology Trial

The results of this trial confirm that this technology can predict ship performance with an estimated margin of error under 1.5 percent (table).

See table here (http://www.fujitsu.com/global/about/resources/news/press-releases/2017/1101-01.html).

A portion of the trial results for ship speed and fuel consumption are shown in figures 3 and 4. Figures 3(a) and 4(a) are time-series graphs of actual values and predicted values, showing them as almost identical, confirming high prediction accuracy. In addition, figures 3(b) and 4(b) show the distribution of actual values and predicted values. As shown in the figures, most of the data points are clustered near the red line, confirming that this technology provides stable prediction accuracy.

By using this technology to accurately comprehend the ship's performance in actual sea conditions, users can improve weather routing precision and contribute to lower fuel consumption.

Future Plans

Fujitsu Limited will include this technology as an option in Fujitsu Mobility Solution SPATIOWL, a cloud service that utilizes location information, aiming to offer the service in 2018.

[1] Ship performance estimation technology

Fujitsu develops High-Accuracy Fuel Efficiency Estimates through a ship's operational data (press release, May 10, 2016) http://www.fujitsu.com/global/about/resources/news/press-releases/2016/0510-03.html

[2] Accuracy of ship speed

Percentage of the difference between ship speed estimated using this technology and actual ship speed measured at one minute increments

[3] Accuracy of fuel consumption

Percentage of the difference between fuel consumption estimated using this technology and actual amount of fuel used during one journey

About Fujitsu

Fujitsu is the leading Japanese information and communication technology (ICT) company offering a full range of technology products, solutions and services. Approximately 155,000 Fujitsu people support customers in more than 100 countries. We use our experience and the power of ICT to shape the future of society with our customers. Fujitsu Limited (TSE: 6702) reported consolidated revenues of 4.5 trillion yen (US$40 billion) for the fiscal year ended March 31, 2017. For more information, please see http://www.fujitsu.com.

About Fujitsu Laboratories

Founded in 1968 as a wholly owned subsidiary of Fujitsu Limited, Fujitsu Laboratories Ltd. is one of the premier research centers in the world. With a global network of laboratories in Japan, China, the United States and Europe, the organization conducts a wide range of basic and applied research in the areas of Next-generation Services, Computer Servers, Networks, Electronic Devices and Advanced Materials. For more information, please see: http://www.fujitsu.com/jp/group/labs/en/.

See details here (http://www.fujitsu.com/global/about/resources/news/press-releases/2017/1101-01.html).

Targeted News Service, source News Service

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Net income 2018 30 213 M
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Yield 2018 1,92%
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P/E ratio 2019 11,14
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