The article presents a method to determine the gyro correction by utilizing parallel lines used in radar, taking into account the advantages of this method, which are the convenience and ease of use. The accuracy of the method according to the geographical and technical factors was analyzed. The mathematical calculation of the final results accuracy was presented. Situations in which it is recommended to use this method for determining gyrocompass corrections due to the high accuracy were describe

The article presents the results of compliance with the provisions relating to the operation of magnetic compasses and gyrocompasses. The proper conducts of ship’s documents, related to this issue have been analyzed. The paper also presents proposals for action aimed at facilitating and improving the existing situation

The problem of routine control of true courses from gyrocompass and from magnetic compass is presented. It is shown, that contemporary method of monitoring is not agree to science methods and is not agree to the intention of navigation safety. The reasons of this situation in aspect of history are analysed. The role of education at solution of this problem is exhibited. The problem is analysed at technical aspect, low aspect, moral aspect. The methods and means of resolving of the problem are presente

The paper presents the possibility of modelling transducers used in transport facilities using fractional calculus and analyses of the dynamic properties in terms of time and frequency for the measuring transducer with a seismic mass. Pointed out the benefits of fractional calculus in the description of the dynamics of transducers used in transportation facilities. Simulation studies were performed in the development environment of MATLAB\&Simulink

In the result of the critical analysis execution of functioning trans-shipping terminals in the national forwarding system the identification JTI system was presented. It used to solve decision problems, and also it will improve the processes of the flow JTI through the trans-shipping terminal

Safety of navigation is a complex problem which consists of many aspects. Seagoing and the level of training contribute to one making the right decisions in accordance with the principles of conduct. Crew training takes place at sea, as well as in maritime training centres. The article describes the safety problems of a warship in the event of fires in various regions of the vessel, hull puncture and unsealing. The problems connected with the identification of damage, its types and methods and tools to repair it have been described. The simulator of damage control has been described and scenarios of events which can be simulated have been presented. One of the scenarios – fire in the engine room – has been chosen and the course of the training with the use of the HOMAR OPA (organization of operations against fire and water), simulator produced by The Autocomp company for the Navy Training Center in Ustka, has been described. The main subjects of trainings are connected with fire safety, fire simulation, fire fighting, hull damages, water and fire defence, investigating damages, warship survivability, repair works etc. The trainings with the use of the simulator include preparation procedures for removing the hull damage and equipment failures as part of the process of securing the proper equipment to fight with water and fires, development of methods for detecting the inflow of water and fire, preparation of procedures to fight with water and fire, training of the crew to fight fires and water. The OPA simulator has been developed on the basis of the latest computer technology, with the use of large-size projection on the screen in the form of a cylinder’s segment

The paper presents a proposal of a method for the computation of ship’s deck elevation at any time and location on-board. The need for such a computation results from an interaction between a ship and cargo being loaded or discharged by a gantry in port, in terms of heeling and rolling of the vessel. The main purpose of such modeling is the need for improvement of gantry control with regard to faster operations thanks to more accurate estimation of level and moment of cargo release from a gantry hook or spreader. The study may be the contribution to the development of gantry control systems in sea ports

Research of problem of general safety level determination of complicated technical object, affected by a number of negative factors of different nature, decreasing the safety level technological object were conducted. The general model for calculation current values safety level consists of basis genetic conversions. Due to use of genetic models to determine come components of safety value of technical object it is possible to calculate impact of various factors which determine change of main components of safety value. Due to use of service functions the relevant influence of factors of different nature can be described according to logic of those factors

Tanker casualties that happen from time to time in the world cause serious damage to environment with disastrous effects. In particular, casualties of tankers “Prestige”, “Erika” and “Nakhodka” where ships were seriously damaged, broken in the middle or separated into two parts showed that salvage operations in many cases were not effective. Such casualty in the Baltic Sea, that is closed area, may lead to the total destruction of the environment. The paper describes a proposed system of preventing marine environment pollution from damaged tankers. Problems related to towing of damaged tankers to the safe harbour or area, that consist an important element of the system, are discussed in more detail with reference to model tests of towing of damaged tanker performed at Iława Training and Research Centre for Ship Manoeuvrability

In the paper were presented some results of experimental works on increasing of effective and lowering of toxic parameters in Diesel engines. Possibility of receipt of this factors is using of fuel fumigation – as contact fuel with catalytic materials in a body of fuel injectors. The results of experimental works conferment of perspective this idea

Detecting fog over sea, especially in early stages of its development, is extremely important due to the threats it imposes on sea navigation. Measurement and observation network in the areas is very thin and limited to single drifting buoys and information provided irregularly by the crews of ships. For these reasons, fog detection by means of remote sensing methods becomes especially significant. The paper presents possibilities to detect fog developing in the most difficult to detect cases – in the air cooling at night time – when it is not possible to sense in the visible light and when the thermal contrast between the fog and the underlying surface is lower than the thermal resolution of the IR images. Analysis of differential and RGB composite images produced from results of observation of the same meteorological objects obtained in various spectral bands reveals features unobservable in each of the bands separately. Using the EUMETSAT recommendations, algorithms of creating RGB composite images were developed in the Department of Geographic Information Systems and applied to images for analysis

Satellite Navigation Systems (SNSs), the GPS system in particular, were available to civilian users from the beginning. The first community interested was the maritime one, for both professional and recreational purposes. Marine navigation distinguishes between five major phases, among those the port approach and operation in restricted waters and the marine navigation in the port. SNSs, today the GPS system and its differential mode DGPS, and Satellite Based Augmentation Systems (SBAS) as EGNOS and WAAS, provide a wide range of applications in both these phases, e.g. coupling SNS receivers with dedicated sensors installed on the ship’s bridge, e.g. AIS, aid in the berthing and docking of large vessels, by means of the position and the heading reference systems. In maritime restricted area, the SNS position accuracy can be decreased when the masking elevation angle causing by the obstacles is for the user on the ship greater than masking angle of observer’s receiver. This diminution depends on among other things the ship course, observer’s latitude, the height of the obstacle, the distance between the observer and the obstacle, here coast side. Additionally, the problem of availability of the integrity information to users and performances, and future use of the GLONASS system after modernization, Galileo and Compass systems actually under construction, new SBASs, the next DGPS and DGLONASS reference stations, and Eurofix with differential corrections to GPS including integrity messages in coastal navigation are described in the paper

The popularity of wireless technologies during the last decade has created a considerable expansion of wireless networks. Many researchers work now on the area of wireless resource planning and optimization. Optimization is considered as the main approach to designing and improving the performance of Wireless Local Area Networks Infrastructure of Seaports Security Systems. The presented models and algorithms enable flexible coverage planning and optimization of Wireless Network Infrastructure

The article addresses an issue of expansion of maritime rescue systems with new components which are Wing-In-Ground-Effect Crafts (WIG craft). Due to operational characteristic, use of phenomenon of ground effect, WIG crafts are extremely economical and achieve relatively high speeds. In addition, they possess also amphibious features. This represents a huge potential for participation in search and rescue actions. The article discusses the phenomenon of a ground effect and its operation performance benefits and limitations. The applications of the WIG craft for specific actions such as conducting search, medical transport, supply of equipment and crews, patrolling are specified. The article analyzes the Search Effort of the WIG craft and marine search unit SAR-1500, actually used on Polish coast. The study consists in determining the relationship between the altitude of the observer, his speed and search width. Next the calculation of available search effort is conducted. The results enable to compare the ability of different types of the patrol units

In this paper, two different shortest path routing algorithms in respect of basic navigation problems are discussed. First of them is a “state of art” in computer science – well known Dijkstra algorithm. The second one is a method based on artificial intelligence – simplified ant colony optimization proposed originally by Marco Dorigo. Author used both ways to find an optimal / suboptimal route for a ship in a restricted area. Results showed the advantages and disadvantages of both algorithms in simple static navigation situations