Disclosed is a marine communication buoy. The marine communication buoy includes s a round seat, side slots and hollow boxes, four side slots are uniformly distributed outside the round seat, and each side slot is connected with the hollow box in a sliding way. The marine communication buoy also includes sealing rings and buckle covers, an outer part of each hollow box is provided with a sealing ring, an outer end of each hollow box is slidably connected with the buckle cover, and an inner side of the buckle cover is in contact with the sealing ring. The marine communication buoy also includes valves and connector pipes, the connector pipe is arranged at an outer side of each buckle cover, and the connector pipe is provided with the valve.

Buoy apparatus and buoy control system for identifying an underwater object, and method for identifying an underwater object are disclosed. A buoy apparatus for use underwater, comprises a buoy securely connected to a first end of a rope; a spool structure securely connected to a second end of the rope; a retractable head for engaging the spool structure; and a spool control device for actuating retraction of the retractable head, wherein in response to an instruction from the spool control device, the retractable head disengages the spool structure, and the spool structure releases the rope when the buoy raises toward a surface of water.

Buoy apparatus and buoy control system for identifying an underwater object, and method for identifying an underwater object are disclosed. A buoy apparatus for use underwater, comprises a buoy securely connected to a first end of a rope; a spool structure securely connected to a second end of the rope; a retractable head for engaging the spool structure; and a spool control device for actuating retraction of the retractable head, wherein in response to an instruction from the spool control device, the retractable head disengages the spool structure, and the spool structure releases the rope when the buoy raises toward a surface of water.

Disclosed is a submersible buoy device and a control method thereof. The submersible buoy device includes an encapsulated housing, a watertight penetration socket, an underwater acoustic communication body, a data acquisition body, a control body and a mounting bracket. By integrally integrating the watertight penetration socket, the underwater acoustic communication body, the data acquisition body and the control body on the encapsulated housing, different types of multi-sensor data in the submersible buoy device can be automatically collected and processed. Adaptive scheduling and linkage control are carried out by the control body to the unity of each functional module, thereby achieving one-stop automatic operation of all measurement data to acoustic transmission communication. The present invention achieves the integration, automation and intelligent application of a plurality of functional modules, and alleviates the technical problems of high installation cost, low reliability and complex installation in the prior art.

Disclosed is a submersible buoy device and a control method thereof. The submersible buoy device includes an encapsulated housing, a watertight penetration socket, an underwater acoustic communication body, a data acquisition body, a control body and a mounting bracket. By integrally integrating the watertight penetration socket, the underwater acoustic communication body, the data acquisition body and the control body on the encapsulated housing, different types of multi-sensor data in the submersible buoy device can be automatically collected and processed. Adaptive scheduling and linkage control are carried out by the control body to the unity of each functional module, thereby achieving one-stop automatic operation of all measurement data to acoustic transmission communication. The present invention achieves the integration, automation and intelligent application of a plurality of functional modules, and alleviates the technical problems of high installation cost, low reliability and complex installation in the prior art.

Embodiments of the present invention provide a navigation system which, on the one hand, is arranged on sides of the underwater vehicle/AUV and, on the other hand, includes a surface transmitter as a counterpart. The two units communicate with each other such that the surface transmitter emits its signal directed to the position of the underwater vehicle and/or that the surface transmitter follows the underwater vehicle to improve the position determination capability.

Embodiments of the present invention provide a navigation system which, on the one hand, is arranged on sides of the underwater vehicle/AUV and, on the other hand, includes a surface transmitter as a counterpart. The two units communicate with each other such that the surface transmitter emits its signal directed to the position of the underwater vehicle and/or that the surface transmitter follows the underwater vehicle to improve the position determination capability.

An autonomous watercraft race course system using automated buoys, sensors, and a race course application for autonomously setting up, starting, conducting, and scoring a race. The race can be any type of race conducted on or near water. In a preferred embodiment the race is a sailing race, however, it is within the scope of this invention for the race to include races for power boats, personal water craft (i.e., jet ski), waterskiing, wake boarding or surfing and over water aircraft races.

An autonomous watercraft race course system using automated buoys, sensors, and a race course application for autonomously setting up, starting, conducting, and scoring a race. The race can be any type of race conducted on or near water. In a preferred embodiment the race is a sailing race, however, it is within the scope of this invention for the race to include races for power boats, personal water craft (i.e., jet ski), waterskiing, wake boarding or surfing and over water aircraft races.

A self-deployable apparatus for facilitating collecting data from multiple depths of water bodies. Further, the self deployable apparatus comprises a main body, substances, a sensor, a storage device, and a power source. Further, the substances in amounts are to be disposed in a second interior space of the main body for sinking the self-deployable apparatus to a depth of water body. Further, the amounts of the substances undergo a thermochemical reaction at a temperature for producing a gaseous substance. Further, a check valve of the main body expels a portion of the gaseous substance from the second interior space for rising the self-deployable apparatus to a surface of the water body. Further, the sensor generates sensor data based on detecting a parameter of a water sample. Further, the storage device stores the sensor data. Further, the power source powers the sensor and the storage device.