FINLAND
Navis takes dynamic position A
DVANCED mathematical models that provide faster and more accurate corrections
are widely used in the Navis IVCS dynamic positioning system. High accuracy is achieved through Kalman filter technology, which constantly optimises the mathematical model for changing environmental conditions or vessel conditions. Helsinki-based Navis Engineering, whose
research and development work is done in St. Petersburg, Russia, offers high-quality automation and control systems for ships. Its products include dynamic positioning (DP0 - DP3) systems, joystick control systems and ship automation systems. The latter include autopilots, steering and thrust control and survey control systems. The products have DNV, ABS and Russian Maritime and River Register approvals. On the DP side, modern optimisation methods
such as frequency domain techniques and three degrees of freedom modelling serve to provide good performance. Simplicity and reliability of the design is achieved through various levels of redundancy. Another unique feature of Navis IVCS is the real-time thrust capability plot calculation. It means that the DP operator has the ability to know, at any time, the amount of thrust available even if one or several thrusters fail. The Navis IVCS system uses a touch-screen
soft key display that automatically reconfigures depending on the mode selected, thus reducing potential operator confusion. The reduced quantity
Navis IVCS operator station uses touch-screen soft key display
of visible keypads ensures safe and easy operation. Every alert message produced by the system is doubled by a voice alarm. The DP control screen is ergonomically designed
to reduce the amount of training needed and adaptation to the operation of the Navis IVCS system. Every alert message needs to be confirmed via a touch-screen or on the panel, which provides an additional level of security.
Recent IVCS systems supplied include a DP0
for Estonian Maritime Administration's new multi-purpose icebreaker EVA-316, a converted buoy-tender, which entered service in March 2006. Also the Canadian research icebreaker CCGS Amundsen (former Sir John Franklin), received an IVCS 11 +01 system last year. Recently Beier Radio, Navis’ OEM partner in the USA, has been contracted by a new customer, Bourbon, to supply 36 Navis DP2 (as Beier IVCS 2000) systems for twenty-six anchor handling tugs and ten platform supply vessels under construction for Bourbon in China. To date, the company, established in 1992, has
delivered dynamic positioning systems for more than 130 oil & gas tankers, supply vessels, tugs, fishing boats, research and other special application vessels, as well mega yachts. Clients of Navis' include Rigdon Marine Corporation, AMT Marine, Hornbeck Offshore Service, Candy Fleet Corp, Atlas Boat and NOAA. Other systems have until now been delivered
for more than 250 vessels. The company also supplies its DP simulators for technical and maritime schools and training centres. Clients include Satakunta Polytechnic School in Finland, Admiral Makarov State Maritime Academy in Russia, LPM Concearneau in Germany, Texas A & M University, Delgado Community College and Louisiana Tech College/Young Memorial in the US and SINDMAR in Brazil.
THE NAVAL ARCHITECT FEBRUARY 2007
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