Patents Assigned to Marine Cybernetics AS
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Patent number: 9085948Abstract: A test system and a method for testing a multiplexed BOP control system (6) wherein the multiplexed BOP control system (6) comprises a first and a second redundant central control unit (10, 20) with respective first and second operator consoles (30, 31), wherein the central control units (10, 20) are arranged for being connected via a first signal transmission system (40) to respective first and second redundant subsea control systems (11, 21) arranged for being connected to BOP valves (50) and BOP sensors (55) in a subsea BOP (1), and the test system comprises a control system signal simulator (42) arranged for being connected between one or more of the control units (10, 20) and one or more of the subsea control systems (11, 21), and further arranged for entirely or partly replacing the first signal transmission system (40) and providing simulated signals (41) between one or more of the control units (10, 20) and one or more of the subsea control systems (11, 21).Type: GrantFiled: July 15, 2011Date of Patent: July 21, 2015Assignee: MARINE CYBERNETICS ASInventor: Olav Egeland
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Publication number: 20130167944Abstract: A test system and a method for testing a multiplexed BOP control system (6) wherein the multiplexed BOP control system (6) comprises a first and a second redundant central control unit (10, 20) with respective first and second operator consoles (30, 31), wherein the central control units (10, 20) are arranged for being connected via a first signal transmission system (40) to respective first and second redundant subsea control systems (11, 21) arranged for being connected to BOP valves (50) and BOP sensors (55) in a subsea BOP (1), and the test system comprises a control system signal simulator (42) arranged for being connected between one or more of the control units (10, 20) and one or more of the subsea control systems (11, 21), and further arranged for entirely or partly replacing the first signal transmission system (40) and providing simulated signals (41) between one or more of the control units (10, 20) and one or more of the subsea control systems (11, 21).Type: ApplicationFiled: July 15, 2011Publication date: July 4, 2013Applicant: MARINE CYBERNETICS ASInventor: Olav Egeland
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Patent number: 7818103Abstract: A test system and method for a marine vessel dynamic positioning system comprising a control system (2) arranged for receiving real measurement signals (7) from sensors (8) and for output of control signals (13) to actuators (16, 17, 18). The test system comprises a signal modifying computer (80) arranged for receiving real measurement signals (7), modifying the real measurement signals (7) into modified measurement signals (70) that depend on real values of the real measurement signals (7), and sending the modified measurement signals (70) to the control system (2), wherein the modified measurement signals (70) replaces the real measurement signals (7), so as for enabling testing of the control system (2) on errors represented by the modified measurement signals (70).Type: GrantFiled: April 4, 2005Date of Patent: October 19, 2010Assignee: Marine Cybernetics ASInventors: Tor Arne Johansen, Asgeir Johan Sørensen, Roger Skjetne
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Patent number: 7496434Abstract: A system for testing a vessel control system includes sensors on board the vessel to send one or more sensor signals over a signal line to the control system; command input devices on board the vessel to send one or more of desired position, course, velocity, etc. over a command signal line to the control system; an algorithm in the control system to compute control signals to based on sensor data, communication lines for sending of one or more simulated signals and/or simulated command signals from a remote test laboratory to the control system; and a simulator including an algorithm for the simulation of the new dynamic state of a vessel model based on a previous state, the control signals, and the dynamic parameters of the vessel. The control system continues to compute the control signals to achieve at least one of desired position, course, velocity, etc. based on real and/or simulated sensor signals and real and/or simulated command signals.Type: GrantFiled: January 9, 2007Date of Patent: February 24, 2009Assignee: Marine Cybernetics ASInventors: Thor Inge Fossen, Asgeir Johan Sørensen, Olav Egeland, Tor Arne Johansen, Jon Rysst, Tor E. Svensen
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Patent number: 7467051Abstract: Herein disclosed is a system for testing a power management system (2) of a marine vessel (1), in which said power management system (2) is arranged for controlling systems (6) that produce electrical energy, in which said power management system (2) is arranged for receiving first signals (9) from a power consuming system (7).Type: GrantFiled: December 5, 2006Date of Patent: December 16, 2008Assignee: Marine Cybernetics ASInventors: Roger Skjetne, Thor Arne Johansen, Asgeir Johan Sørensen
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Publication number: 20070250227Abstract: A system for testing a vessel control system includes sensors on board the vessel to send one or more sensor signals over a signal line to the control system; command input devices on board the vessel to send one or more of desired position, course, velocity, etc. over a command signal line to the control system; an algorithm in the control system to compute control signals to based on sensor data, communication lines for sending of one or more simulated signals and/or simulated command signals from a remote test laboratory to the control system; and a simulator including an algorithm for the simulation of the new dynamic state of a vessel model based on a previous state, the control signals, and the dynamic parameters of the vessel. The control system continues to compute the control signals to achieve at least one of desired position, course, velocity, etc. based on real and/or simulated sensor signals and real and/or simulated command signals.Type: ApplicationFiled: January 9, 2007Publication date: October 25, 2007Applicant: Marine Cybernetics ASInventors: Thor Fossen, Asgeir Sorensen, Olav Egeland, Tor Johansen, Jon Rysst, Tor Svensen
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Publication number: 20070143090Abstract: Herein disclosed is a system for testing a power management system (2) of a marine vessel (1), in which said power management system (2) is arranged for controlling systems (6) that produce electrical energy, in which said power management system (2) is arranged for receiving first signals (9) from a power consuming system (7).Type: ApplicationFiled: December 5, 2006Publication date: June 21, 2007Applicant: MARINE CYBERNETICS ASInventors: Roger SKJETNE, Thor JOHANSEN, Asgeir SØRENSEN
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Publication number: 20070100478Abstract: A system for testing whether a control system (2) is capable of detection and handling of faults, failures or failure modes (8) in a petroleum process plant (1), said control system (2) arranged for being connected with input signal lines (30) for receiving sensor and other input signals (30) from said petroleum process plant (1), and connected with control signals lines (40) for transmitting control signals (4) to said petroleum process plant (1), comprising the following features said control system (2) arranged for receiving simulated sensor signals or other input signals (3s) from a simulated petroleum process plant (10) over said input signal line (30), said control system (2) arranged for transmitting control signals (4) to said petroleum process plant simulator (10) over said control signal line (40), The novel and inventive of the invention comprises the following features: an input signal modifier (9) arranged for being connected to said input signal line (30), said input signal modifier (9)Type: ApplicationFiled: October 27, 2006Publication date: May 3, 2007Applicant: MARINE CYBERNETICS ASInventors: Olav EGELAND, Tor JOHANSEN, Asgeir Sorensen, Roger Skjetne
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Patent number: 7177734Abstract: A system for testing a control system in a vessel, comprising: sensors on board the vessel; command input devices on board the vessel to send desired position, course, velocity; an algorithm in the control system for the computation of control signals to the vessel actuators; communication lines for sending simulated command signals from a remote test laboratory to the control system; a simulator including an algorithm for the simulation of the new dynamic state of a vessel model based on a previous state; where the communication line is arranged for sending back the new simulated stare of the vessel model in the form of simulated sensor signals for continued computation to achieve desired position, course, velocity; and where the communication line is sending the response from the control system to the remote test laboratory.Type: GrantFiled: December 30, 2003Date of Patent: February 13, 2007Assignee: Marine Cybernetics ASInventors: Thor Inge Fossen, Asgeir Johan Sørensen, Olav Egeland, Tor Arne Johansen, Jon Rysst, Tor E. Svensen
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Publication number: 20060116796Abstract: A system for testing a control system (2) in a vessel (4), in which the control system (2) is arranged to control and monitor the vessel (4), comprising the following features: one or more sensors (8) on board the vessel (4) to send one or more sensor signals (7) over a signal line (12) to the control system (2); command input devices (10) on board the vessel (4) arranged to send one or more of desired position, course, velocity, (9) etc.Type: ApplicationFiled: December 30, 2003Publication date: June 1, 2006Applicant: Marine Cybernetics ASInventors: Thor Fossen, Asgeir Sorensen, Olav Egeland, Tor Johansen, Jon Rysst, Tor Svensen
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Publication number: 20060111855Abstract: A method for testing a marine vessel (0) control system (2), said system (2) receiving real measurement signals (7) from sensors (8) and providing control signals (13) to actuators (16, 17, 18), characterized in connecting a signal modifying computer (80) and receiving one or more of said real measurement signals (7), said signal modifying computer (80) modifying said real measurement signals (7) into modified measurement signals (70) that depend on the real value of said real measurement signals (7); said signal modifying computer (80) sending said modified measurement signals (70) to said control system (2), said one or more modified measurement signal (70) input replacing some or all of said real measurement signal (8) input; said control system (2) acting upon said one or more modified measurement signals (70) and remaining unaffected real measurement signals (7); for testing whether said control system (2) acts in a desired way on errors represented by said modified measurement signal (70) imaginedType: ApplicationFiled: April 4, 2005Publication date: May 25, 2006Applicant: Marine Cybernetics ASInventors: Tor Johansen, Asgeir Sorensen, Roger Skjetne
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Publication number: 20060064211Abstract: The invention relates to a method for testing a control system (5) of a marine vessel (0). The control system (5) receives input commands (51) like desired position, heading, and speed from an input command device (50). The control system sends control signals (6, 62) to actuators (3). Such actuators may be electrical thruster drive motors (32) for thrusters (31) and electrical propeller motors (35) for fixed-shaft propellers (34). The vessel (0) comprises sensors (8) like position reference sensors (81, 82, . . . ) providing sensor signals (7, 71, 72, . . . ) back to said control system (5). The actuators (3) receive electrical energy provided by an on-board power system (1) that is controlled by a power management system (2).Type: ApplicationFiled: April 4, 2005Publication date: March 23, 2006Applicant: Marine Cybernetics ASInventors: Tor Johansen, Asgeir Sorensen, Roger Skjetne
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Publication number: 20060058929Abstract: A method for verifying a control system (2) of a vessel (4), in which said control system (2) in its operative state receives sensor signals (7) from sensors (8) and command signals (9) from command input devices (10), and as a response provides control signals (13) to actuators (3) in order to maintain a desired position, velocity, course or other state of said vessel (4), characterized by the following steps: during a time (t0), disconnecting the reception of real sensor signals (7a, 7b, 7c, . . . ) and replacing said real sensor signals by a test sequence (T0) of artificial measurements (7a?, 7b?, 7c?, . . .Type: ApplicationFiled: December 16, 2004Publication date: March 16, 2006Applicant: Marine Cybernetics ASInventors: Thor Inge Fossen, Asgeir Johan Sorensen, Olav Egeland, Tor Arne Johansen