A trim control system for controlling a relative position of a trimmable marine device with respect to a marine vessel hull includes a trim actuator coupled to the trimmable marine device about a horizontal trim axis. The trim control system further includes a trim control module executable on a processor and configured to identify a target trim position for the trimmable marine device, determine a desired trim rate of change to rotate the trimmable marine device about the horizontal axis from a current trim position toward a target trim position, and operate the trim actuator to rotate the trimmable marine device at the desired trim rate of change toward the target trim position.

A system for measuring the attitude of an object in a fixed frame of reference from a moving frame of reference, comprising a first imaging device for producing image data for the object from a first direction, a second imaging device for producing image data for the object from a second direction having a component perpendicular to the first direction and an attitude sensing arrangement for determining an attitude of the first and second imaging devices with respect to the fixed frame of reference at the time the respective images are taken and for generating attitude data. An image processing system analyses and combines the respective image data and attitude data to determine the attitude of the object. The system is particularly useful for determining attitude of offshore piles during piling operations or for monitoring the departure angles of pipes and cables during laying thereof.

A system for monitoring a physical change of a marine structure includes a complex optical measuring instrument configured to detect a behavior and structural change of the marine structure by using at least one optical sensor by means of optical fiber Bragg grating.

A system for monitoring a physical change of a marine structure includes a complex optical measuring instrument configured to detect a behavior and structural change of the marine structure by using at least one optical sensor by means of optical fiber Bragg grating.

A controller performs hydrolock prevention control when an engine is started. The controller determines whether a crankshaft rotates a predetermined number of times upon starting the engine without ignition of the engine. The controller performs the ignition of the engine after the crankshaft rotates a predetermined number of times.

Techniques for providing instructions to an operator of a sea vessel via a computing device are described. The computing device can request, from another computing device, instructions regarding one or more of an intended course and action plan for the sea vessel, which can include at least one navigational instruction and/or deployment instruction. The computing device can send data to a display device to cause a prompt to be displayed. The prompt can include options regarding the at least one instruction. The computing device can send state information of the sea vessel to the other computing device. The state information can include the received input and location information of the sea vessel. Additionally, data can be received by the computing device from a shore based operator and data can be sent to one or more clients on shore.

Provided are techniques for monitoring a moving vessel using a detachable drone coupled to the moving vessel. An event is identified that triggers detachment of the detachable drone from the moving vessel. The detachable drone is detached from the moving vessel. The detachable drone is moved to a predetermined location. A beacon based on beacon data is transmitted from the detachable drone. In response to the detachable drone receiving a request for the data, data collected from monitoring the moving vessel is delivered.

A vessel load measurement system includes a laser measurement system configured to measure distances and angles by directing a laser of the laser measurement system onto remote laser targets and a controller configured to use the laser measurement system to measure a height of a first laser target placed at a known location on a vessel, obtain pitch and roll measurements of the vessel, and compute at least one vessel corner height based on the measured height of the first laser target at the known location on the vessel, the pitch and roll measurements of the vessel, and known dimensions of the vessel. The first laser target may be part of a jig that can be placed at a known location on the vessel. The jig may include at least one tilt sensor. An additional laser target may be used to measure the water level.

A personal watercraft orifice injury mitigation system comprising: a passenger lanyard 9 with a key 10 and attachment 11 at opposite ends of said lanyard 9; a kill switch 12, where the key 10 is inserted into the kill switch 12 and the attachment 11 is attached to a passenger on the personal watercraft; electrical contacts 14 attached to the kill switch 12 and a controller/logic circuit 15, wherein if the passenger falls of the personal watercraft the key 10 activates the control logic circuit 15, such that if the personal watercraft is traveling less than X mph the kill switch 12 shuts off the engine so that there is no high energy water jet that exits the rear of the personal watercraft thus eliminating the possibility of serious orifice injuries that would be caused by passenger interaction with the high energy water jet.

Techniques for providing instructions to an operator of a sea vessel via a computing device are described. The computing device can request, from another computing device, instructions regarding one or more of an intended course and action plan for the sea vessel, which can include at least one navigational instruction and/or deployment instruction. The computing device can send data to a display device to cause a prompt to be displayed. The prompt can include options regarding the at least one instruction. The computing device can send state information of the sea vessel to the other computing device. The state information can include the received input and location information of the sea vessel. Additionally, data can be received by the computing device from a shore based operator and data can be sent to one or more clients on shore.