HYDROACOUSTICS
ANNUAL JOURNAL |
START | NEW VOL 20 | SEARCH | STATISTICS | PAS - GDANSK DIVISION |
pp. 237-242, vol. 1, 1997 Jacek Marszal Technical University of Gdańsk, Gdańsk, Poland Roman Salamon Technical University of Gdańsk, Gdańsk, Poland Lech Kilian Technical University of Gdańsk, Gdańsk, Poland Aleksandra Raganowicz Technical University of Gdańsk, Gdańsk, Poland T. Szurowski Technical University of Gdańsk, Gdańsk, Poland Key words: Abstract: The berthing of ships is an extremely complicated task that requires decisions on the movement of ships based on a large number of variabies: tide wind, visibility, speed, distance from jetty. Particular difficulties are related to the less maneuverable ships such as very large crude carriers. The presented hydroacoustic ships berthing aid system measures four distances of a ship to the jetty using the sonar echo method. The system computer calculates the bow and stern speed and distances to dolphins from the measured data. The results obtained are simultaneously presented on a large, high luminance display as well as printed out and recorded on computer discs. Additionally the dolphins displacements are measured and the data obtained together with its statistical parameters are recorded.
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