A robotic fish comprises one or more torque reaction engines and a fish body, wherein the torque reaction engine cyclically oscillates and causes a wave to propagate across the fish body, including through a flexible wing, accelerating thrust fluid and propelling the robotic fish.

Autonomous craft capable of extended duration operations as lighter-than-air craft, having the ability to alight on the surface of a body of water and generate hydrogen gas for lift via electrolysis using power derived from a photovoltaic system, as well as methods of launching an unmanned aerial vehicle (UAV) having a deployable envelope from a surface of a body of water.

A method for transporting a parcel comprises a marine unmanned vehicle (MUMV) receiving a waterproof tote, coupling the tote to a tether, and towing the tether and the tote, with the tether floating on the transport waterway and the tote immersed in the the transport waterway, to a delivery location. The method can include an MUMV receiving the tote from, and/or delivering the tote to, an aerial vehicle. An unmanned water transport system (UWTS) comprises an MUMV, a floating tether, and a waterproof tote containing a parcel for transport on a transport waterway. The MUMV and tether are configured to tow the tether, with the tether floating on the transport waterway, and the tote coupled to the tether and immersed in the water of the transport waterway, to transport the tote from a source location to a delivery location on the transport waterway. The UWTS can perform the method.

A hierarchical data acquisition system and method applied to a marine information network are provided. Multiple sensor nodes are arranged in clusters, each of the clusters includes a cluster head node and multiple ordinary nodes. The multiple ordinary nodes acquire data information of a seafloor and transmit the acquired data information to the cluster head node, and the cluster head node aggregate the data and transmits the aggregated data to an autonomous underwater vehicle, reducing energy consumption of each of the sensor nodes, prolonging service lives of sensors of a data acquisition layer, and improving data acquisition efficiency of a data acquisition layer. In addition, after each of data acquisition periods, a sensor node in each of the clusters is selected as a cluster head node in a next data acquisition cycle. Cluster head nodes are continuously updated in cycles.

Embodiments of the present disclosure relate to a water body pollution intelligent investigation method and device based on unmanned ships. The method includes: determining a first pollutant concentration value of a monitored water area according to water quality data of the monitored water area; controlling an unmanned ship to cruise in the monitored water area according to a preset cruise trajectory and perform water quality collection to obtain a second pollutant concentration value of the monitored water area; determining, when there is an abnormal cruise coordinate point, a target cruise trajectory according to the second pollutant concentration value of the abnormal cruise coordinate point; and controlling the unmanned ship to cruise according to the target cruise trajectory to determine a pollution source of the monitored water area.

The invention relates to a tug for maneuvering a vessel, comprising at least one proximity sensor in a contact area, the proximity sensor being configured to detect a distance between the contact area and the vessel, and a tug controller unit controlling an approach of the tug towards the vessel based on the detected distance between the contact area and the vessel.

An autonomous navigation type marine buoy includes: a buoy body consisting of a floating body; an internal sensor; a detection unit that receives a GPS signal and information of the internal sensor; an on-water exploration unit that explores a state on a sea; an underwater exploration unit that explores a state under the sea; a determination unit that creates a navigation plan for the buoy body; a propulsion unit that propels the buoy body; a navigation control unit that performs drive control of the propulsion unit so that the buoy body navigates according to the navigation plan; a power generation unit; a power storage unit; a communication unit that communicates with an outside; an emergency signal unit that receives a distress signal and specifies a transmission position of the distress signal; and an evacuation room that accommodates a victim, in which the autonomous navigation type marine buoy has an autonomous navigation mode of performing autonomous navigation to a set position on the sea, a home position mode of autonomously holding a home position at the set position on the sea, and a rescue mode of performing autonomous navigation to the transmission position of the distress signal on the sea when the distress signal is received.

The present disclosure is directed toward a storage compartment vehicle (“SCV”) for use in the transport of items for delivery to one or more customers and/or retrieval of items from one or more customers. The SCV may include a plurality of storage compartments that are individually accessible, each of which can contain one or more items. The SCV may navigate to a delivery location and customers may retrieve ordered items from the storage compartments of the SCV. Likewise, customers may return items into storage compartments of the SCV.

Methods and apparatus are provided for deploying an unmanned marine vehicle into water, in which the unmanned marine vehicle includes a float and a glider connected by a tether. The apparatus includes a buoyant frame having a first frame arm, and a second frame arm spaced from the first frame arm to define a receiving bay between the first frame arm and the second frame arm, wherein the receiving bay is sized to receive the float. A glider retainer assembly is coupled to the buoyant frame and configured to releasably retain the glider. The apparatus further includes a payload deployment assembly having an attachment plate coupled to and positioned below the buoyant frame, and a payload compartment releasably coupled to the attachment plate by a payload release, wherein the payload compartment defines a receptacle sized to receive a payload coupled to the glider, and the payload compartment has a density greater than water.

The present invention discloses a vessel power safety control system and operating method thereof. The vessel power safety control system includes a load power management module, a real-time monitoring module, an integration module and a power module. The present invention can assist the autonomous ship as any occurrence of fault during navigation. Once the accident occurs, the load power management module will give an instruction to control the DC bus to switch from closed circuit to open circuit to protect other equipment. After determining whether the errors of the equipment on board is eliminated, the load power management system performs automatic system reset procedure. As such, the DC bus can be converted from an open circuit to a closed circuit to restart the power supply for the facility.