A sensor detects a shape of a shore arrival location and a positional relationship of the shore arrival location and a boat body and outputs environment information indicating the shape of the shore arrival location and the positional relationship. A controller receives the environment information and generates an instruction signal to control a propulsion device to cause the boat body to move toward the shore arrival position set based on the environment information and to push the boat body to the shore arrival location.

A sensor detects a shape of a shore arrival location and a positional relationship of the shore arrival location and a boat body and outputs environment information indicating the shape of the shore arrival location and the positional relationship. A controller receives the environment information and generates an instruction signal to control a propulsion device to cause the boat body to move toward the shore arrival position set based on the environment information and to push the boat body to the shore arrival location.

A camera produces image data representing an image of a surrounding view of a watercraft. A controller obtains the image data. The controller recognizes an image representing a specific mark in the image data. With reference to a control data set, the controller obtains watercraft operating information associated with the specific mark recognized in the image data. The control data set defines a relationship between the specific mark and the watercraft operating information.

A camera produces image data representing an image of a surrounding view of a watercraft. A controller obtains the image data. The controller recognizes an image representing a specific mark in the image data. With reference to a control data set, the controller obtains watercraft operating information associated with the specific mark recognized in the image data. The control data set defines a relationship between the specific mark and the watercraft operating information.

A wave attenuator system for protecting a floating dock or other structure from incoming wake created by wind or vessel is disclosed herein, in various aspects. The wave attenuator system may include a substantially rectangular curtain made of a water-impermeable flexible material, in various aspects. The curtain top edge may be secured along the length of at least one of the sides of a dock, in various aspects. The curtain bottom edge may be suspended in a body of water a predetermined distance below the water surface, in various aspects. The bottom edge may include a weighted material to maintain the curtain in a substantially vertical orientation, in various aspects. The wave attenuator system is operable to redirect waves impacting the curtain downward to reduce wave action against the dock or other structure, in various aspects.

A floating lift system capable of fully integrating into an existing floating or fixed dock or into a floating or fixed dock currently in construction that allows users to employ a plurality of utilitarian uses, thereby providing for enhanced user experience. The floating lift system includes an elevator deck comprising of a parent floating dock adapter and a lift deck extender; a lift deck; and an air control system. The floating lift system allows for the raising and lowering of load into and out of water.

Disclosed herein is an inflatable watercraft barrier in one example having an inflatable perimeter tube. Also disclosed is a diaphragm sealed to the perimeter tube to form the watercraft barrier between a watercraft and the water in which the watercraft barrier and watercraft float. In one example, a portion of the perimeter tube forms a gate portion which is at least partially selectively deflated so as to be denser than water, and therefore rotates about a gate pivot such that the watercraft may enter the watercraft barrier through the gate portion. Also disclosed is a water pump in fluid communication with the watercraft barrier so as to evacuate water from between the watercraft barrier and the watercraft.

The present invention relates to boat controllers that provide improved methods for raising and lowering watercraft into and out of water. Controllers of the invention allow for the automated maintenance of otherwise manual procedures for boat lifts. Advantageously, systems of the present invention can be operated remotely. Such remote operation is particularly advantageous during, or in preparation for, inclement weather conditions.

A modular floating platform connector includes a connecting unit with a hollow center chamber that has one or more inside diameters. The chamber may have wall surfaces to secure components to modular floating platforms. The connector may further incorporate one or more external features such as a collar and retaining ribs that engage with the connecting tabs on modular floating platform float modules to securely hold the float modules together and to retain attachment members of accessories, fixtures, structures and other components to modular floating platforms.

A positional sensor detects a current position of a boat body and outputs position information indicating the current position. A controller receives the position information. The controller determines a target position of the boat body. The controller calculates the distance between the current position and the target position. The controller determines a target speed of the boat body to reach the target position in accordance with the distance. The controller calculates the force of an outside disturbance. The controller determines a target propulsion force of a propulsion device based on the force of the outside disturbance and the target speed. The controller generates an instruction signal to control the propulsion device to produce the target propulsion force.