The present invention provides an anchor alarm device which is a manually deployed weighted device attached to or near the anchor which signals to device equipment at water-level. The device detects the movement of, or physical force generated by, a dislodged anchor. When deployed, a component of the anchor alarm device rests adjacent to or as part of a seated anchor at a distance predetermined by the tolerance of the secondary rode. The secondary rode connects the device directly to the anchor, or near the anchor on the primary rode. Upon displacement of the set anchor, in excess of the secondary rode, the device alerts the user. The device utilizes sensor monitoring inside of a housing component to detect a force indicative of anchor displacement. This detection triggers a signals emission which alerts the user of the change in position. In cases wherein the anchor is not immediately retrieved, device re-arms autonomously and stops emission of the alarm signal until the next anchor displacement. The system communicates with signal devices on board or deployed near the anchoring vessel in order to alert the user.

The present disclosure provides a system and method of monitoring a mooring system for a floating vessel using the time of the natural period independent of environmental conditions. The natural period can be calculated and/or established experientially over time by measuring movement of the vessel to establish the natural period at given geographical positions of a secure and intact mooring system. The natural period can be monitored based on the time to complete a natural period. A change in a mooring line stiffness, whether by a failure, stretching, a degradation of the mooring line integrity, or a significant displacement of the anchoring point, will be translated into a different natural period with a different time. By monitoring the natural period for a given geographical position (and corresponding heading) to be compared to the theoretical values (and/or previous recorded values) it is then possible to assess that at least a portion of the mooring system has failed or that a significant damage has occurred.

The present disclosure relates to embodiments of a mooring link measuring tool comprising at least one handling rod; at least one adjustment plate; at least one graduated fork with at least two arms. Furthermore, the present disclosure relates to embodiments of a method of measuring a mooring link using the mooring link measuring tool comprising the steps of coupling at least one manipulator arm of at least one ROV to at least one handling rod; positioning the mooring link measuring tool on the mooring link; moving the mooring link measuring tool against the mooring link until the mooring link locks between at least two arms of the at least one graduated fork; measuring at least one perpendicular diameter of the mooring link; obtaining at least one image of the at least one adjustment plate positioned on the graduated fork.

A safety system for a boat, watercraft or other vehicle includes a kill switch connected to the motor for preventing the motor from running under dangerous circumstances. The system may include proximity sensors operatively connected to the kill switch, so that the motor only runs when the proximity sensor detects a person properly positioned at the captain's console. Other sensors may form an array to communicate with the kill switch, to automate certain features and systems, or to otherwise provide alarms upon detection of dangerous situations, including a carbon monoxide detection sensor system, gate sensors, anchor-down sensors, ladder sensors, ambient light sensors, optical rain sensors for operating an automated windshield wiper safety system, an array of cameras strategically positioned around the periphery of the watercraft for monitoring purposes, and an automated anchor/navigation light system.

A subsea load monitoring apparatus having: a load sensor having a first end and a second end; a central processing unit configured for processing measurements from the load sensor; a battery for powering the central processing unit; an activation device being configured for activating the central processing unit from an idle operational mode to an active operational mode; a first and a second load attachment means connected to the first and second end of the load sensor, respectively; and an output device for the processed measurements from the load sensor. A subsea load monitoring system and methods for use of the subsea load monitoring system.

A method for evaluating a securing system for a floating structure, where the method includes collecting a plurality of metocean data from a plurality of metocean sensor devices during a current time period coinciding with a field operation, where the field operation is conducted from the floating structure that is stabilized by the securing system. The method can also include evaluating the metocean data using a plurality of algorithms. The method can further include determining, based on evaluating the metocean data, a condition of the securing system at the current time period.

An apparatus, method and system for real-time monitoring of underwater risers, cables, and mooring lines based on a Kalman filter. In an embodiment, the system is formed with sensors configured to sense an inclination of a riser segment between riser nodes of the riser between the upper end and the lower end. A data processing system is configured to employ a Kalman filter algorithm to produce real-time estimates of a deformed shape and a stress of the riser segment using the sensed inclination between the riser nodes.

An autonomous vessel and method for maintaining precise position or trajectory during marine operations, such as cable or pipe laying or offshore construction and installation, are disclosed. The vessel includes multiple mooring lines anchored externally, a winch system with tension sensors, a position sensor, and a control system. The control system processes positional and tension data to detect deviations caused by environmental forces like wind, waves or currents. In response, it actuates the winch system to adjust mooring line lengths, counteracting forces and enabling controlled maneuvering within the mooring spread. An optional artificial intelligence module learns from historical data to predict dynamics and optimize adjustments along predefined waypoints. This reduces fuel use, enhances accuracy, and minimizes risks compared to conventional dynamic positioning systems. Applicable to vessels like barges or installation platforms.