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 watercraft mounting system that embodies a moving mounting platform and a protective hull cavity which provides protection, prevents damage and improves storage of data collection systems.

According to research findings, it is known that human hearing ability is not restricted by the Fourier uncertainty principle. The present disclosure intends to propose the sound processing method and device using the DJ transform method, a new frequency extraction method from understanding of the human hearing ability that improves the temporal resolution as well as the frequency resolution simultaneously based on the operating principle of hair cells constituting the cochlea.

Examples devices and systems are provided herein for mounting a transducer within a hull of a watercraft. Such devices and systems include a housing that defines an interior volume, a biasing mechanism, and a retractable portion disposed at least partially within the interior volume and connected to the biasing mechanism. The retractable portion includes an acoustic element and an acoustic fluid. The retractable portion is biased to a first position from a second position. When the retractable portion is in the first position, the acoustic element is at least partially positioned outside of the hull of the watercraft and aimed in a facing direction to capture sonar return data corresponding to a portion of an underwater environment. When the retractable portion is in the second position, the acoustic element is positioned fully inside the hull of the watercraft so as to protect the device from external elements.

The present invention provides a cable planning method based a fast marching method applied with simulated annealing (FMM/SA) algorithm. In the FMM/SA algorithm-based cable planning method, the FMM used to obtain the optimal submarine cable path with the lowest life-cycle cost, and the SA algorithm is used to continuously adjust the weight of each design consideration with the aim to achieve an optimal cable path that is as close as possible to a real-life cable path which has a history of cost-effectiveness and resilience. The set of weights contributed to the optimal cable path is then used as an optimal set of weights of design considerations for cable path planning. The FMM/SA algorithm-based cable planning method can provide a computationally effective approach which has lower computation costs and better performance in generating cable paths with optimal life-cycle cost and reliability.

An electronic chart system (ECS) is configured to be coupled to a user interface. In one embodiment, the ECS is implemented using a logic device configured to obtain a predicted fix for a watercraft position. Based on the predicted fix, the logic device obtains an electronic chart of an area containing a location of the predicted fix. The logic device searches the electronic chart for static objects whose ranges and/or bearings are viewable from the watercraft at the predicted fix location. Other systems, methods, and devices are also provided.

A watercraft mounting system that embodies a moving mounting platform and a protective hull cavity which provides protection, prevents damage and improves storage of data collection systems.