Control unit for a maritime vessel

A computer-implemented method for monitoring integrity of an operation and/or data used by a system of the maritime vessel, the method comprising:

• processing, by a first computing element, a first input signal to generate a first output;
• processing, by a second computing element, a second input signal to generate a second output;
• comparing, by the first computing element, the first output with the second output;
• and
• initiating and/or performing a preventive action if the first output and the second output do not match within predetermined tolerance.

A control unit for a maritime vessel, the control unit configurable to monitor integrity of an operation and/or data used by a system of the maritime vessel, the control unit comprising:

• a first computing element configured to process a first input signal to generate a first output;
• and
• a second computing element configured to process a second input signal to generate a second output;
• wherein the first computing element is configured to compare the first output with the second output, and if the first output and the second output do not match within a predetermined tolerance then the first computing element is configured to initiate a preventive action;
• and
• wherein the second computing element is configured to compare the second output with the first output, and if the first output and the second output do not match within the predetermined tolerance then the second computing element is configured to initiate the preventive action;
• wherein if the first output and the second output match within the predetermined tolerance then the control unit is configured to transmit a control unit output, wherein the control unit output comprises at least one of the first output, the second output, or both the first output and the second output.