We present an automated ship scheduling system – DUKC R © Optimiser – which selects sailing times for a set of cargo ships at a port, so as to maximise total cargo throughput while meeting port operational and safety guidelines, as well as producing schedules that are fair to all companies using the port. The system has been developed by maritime engineering company OMC International, incorpora...

The relevance of ship routing system is increasing according to the mitigation of carbon emissions and enhance the maritime safety. New generation of high-resolution meteo-oceanographic predictions provides useful tools for ship routing. However, scientific efforts have been focused on inter-oceanic routes. This contribution investigates the economic benefits and improvement on safety navigatio...

In the paper the problem of ship trajectory tracking with ε-accuracy is considered. A three-degrees-of-freedom ship model with full dynamic interaction between motions in roll, sway and yaw is assumed. The aim of the paper is to determine the robust control for ship trajectory tracking with ε-accuracy. Such control is obtained by means of a state feedback (called Tytus feedback) system characte...

Maritime wireless communication is different from terrestrial wireless communication, due to difference of environments. Nevertheless technologies based on WiMAX (IEEE 802.16j) for ship to ship maritime communication promised to deliver high data rates over large distances and deliver multimedia services and are expected to use e-Navigation system. This paper focuses to simulate on IEEE 802.16j...

Marine navigation consists in continuous observation of the situation at sea, determination the anti-collision manoeuvre. So it necessary to determine ship safe trajectory as a sequence of ship course changing manoeuvres. Each manoeuvre is undertaken on the basis of information obtained from the anti-collision system ARPA. This paper describes a method of safe ship control in the collision situ...

To realize the ship detection with short coherent integration time (CIT) is an operational requirement for skywave over-the-horizon radar (OTHR). However, short CIT and the resulting low Doppler resolution cannot separate the ship from the close powerful ocean clutter. To resolve this problem, Fourier transform based clutter cancellation is proposed as well as some super-resolution spectral est...

* Assistant Professor, Department of Mechanical Engineering, Mehran University of Engineering & Technology, Jamshoro. ** Professor, Department of Computer Systems Engineering, Mehran University of Engineering & Technology, Jamshoro. Design of ship control system has been great challenge since long time, because the dynamics of ship are not only nonlinear but change with operating conditions (de...

In this paper, an overview of the techniques applied to AC electric propulsion field has been done. Actual study cases of electric ship propulsion schemes are considered. An impartial comparison between three-level converters versus two-level converter from the viewpoint of electric ship propulsion requirements has been done. Diodeclamped three-level converters using direct torque control (DTC)...

This paper addresses the problem of designing fin control for the ship roll stabilization. A novel adaptive robust fuzzy control (ARFC) algorithm is presented for ship roll nonlinear system with unstructured uncertainties. In the algorithm, the Takagi-Sugeno type fuzzy logic systems are employed to approximate uncertain functions in the systems, and a systematic procedure is developed for the s...