Method and system for testing a control system of a marine vessel

Abstract

A method for inspecting a control system (2) of a ship (4), wherein the control system (2) in its operating state receives sensor signals (7) from a sensor (8) and from a command input device (10 ), and in response, the control system (2) provides a control signal (13) to the actuator (3) to maintain the desired position, speed, heading or other of the vessel (4) state, characterized by the following steps: at a first moment (t0), the reception of one or more actual sensor signals (7a, 7b, 7c, ...) is disconnected and used from the test signal source ( 41) The test sequence (T0) of simulated measurement data (7a′, 7b′, 7c′...) replaces the actual sensor signal; let the control system (2) be based on the simulated sensor signal (7, 7') work to generate a control signal (13') as a response (S0) to the first test sequence (T0) at the first time (t0) ) is recorded on the control signal recorder (42) and the response (S0) to the test sequence (T0) is stored as a "characteristic" response (S0) of the control system (2); the method has the following purpose: in subsequent time (t1, t2, t3, ...), use the test sequence (T0) to input to the control system (2), and record the subsequent responses (S1, S2, S3, ...) , and determine whether the subsequent response is similar to the characteristic response (S0) to verify whether the control system (2) has changed.

Description

technical field [0001] The present invention relates to a system for obtaining a verifiable control system signature after acceptance of a vessel at sea by testing and / or qualification by a classification society. Furthermore, the invention relates to remote testing of ships, and a combination of these two methods, ie remote acquisition of control system features. Furthermore, the present invention provides a system for remote control testing and ship simulation. [0002] A control system can generally be thought of as a system that provides control signals to a physical process and receives measurement data from equipment or a physical process, or possibly from other physical processes. Measurement data and algorithms are used to calculate control signals so that the physical system responds as desired. If the physical process is a motoring ship, then the control system can receive measurements in the form of the ship's position, heading, and speed, and can thus compute pro...

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Problems solved by technology

This U.S. patent does not discuss issues related to dynamic positioning of vessels in drilling operations or other forms of fixed-point operations. This patent does not mention the use of cranes, navigation devices connected to underwater equipment, and hydroacoustic positioning equipment. integration, problems related to ballast, and does not take into account the impact of sea waves

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