Deep-sea acoustic beacon directional guide device

Abstract

The invention relates to a deep-sea acoustic beacon directional guide device, which comprises a hydrophone, a linear array, three watertight cables, four pairs of watertight connectors and an underwater pressure-resistant electronic chamber, wherein a sensitive end of the hydrophone is installed below a central axis of an AUV (Autonomous Underwater Vehicle) in a vertically downward manner; the linear array is installed on a horizontal plane below the central axis of the AUV; the underwater pressure-resistant electronic chamber comprises a shell capable of withstanding the deep-sea hydrostaticpressure and an in-chamber circuit module; the in-chamber circuit module comprises a signal sampling, storage and communication module and an attitude sensor; and the underwater pressure-resistant electronic chamber uploads direction finding data to an AUV platform in real time through the watertight cables. The invention has the beneficial effects that a deep-sea acoustic beacon directional guidedevice applied to the autonomous underwater vehicle is realized, the device can capture underwater acoustic pulse signals of acoustic beacons within a range with the radius being 500m and realize direction finding, and the underwater vehicle has a function of searching acoustic beacons in a deep sea area after installing the device.

Description

technical field [0001] The invention belongs to the technical field of underwater target search and positioning, and relates to an underwater detection and orientation guidance device, in particular to a deep-sea acoustic beacon orientation and guidance device installed on a deep-water autonomous vehicle (AUV). Background technique [0002] The dependence of my country's economic development on marine resources and space is increasing day by day, and the national energy strategy and military strategy extend to the deep sea. , The number and density of aircraft and personnel activities at sea continue to increase, and the probability of accidents and dangerous situations increases accordingly. It is urgent to improve the emergency support capabilities in deep and open seas. Acoustic beacons are usually assembled on important items or key components, such as marine test equipment, aircraft black boxes, etc. After entering the water, acoustic beacons can send underwater acoustic...

AI Technical Summary

Problems solved by technology

After Malaysia Airlines MH370 lost contact, my country dispatched a large number of personnel, ships and equipment to search for the lost sea area. Due to the depth of the sea area, the average depth is about 4,500 meters, the area is large, and the span is about 3,000 nautical miles. The search and positioning of the wreckage and the salvage of the black box The technology is very difficult. my country's existing submersible technology and marine equipment cannot meet the application requirements of deep-sea target search and positioning. The depth, breadth and long-term operation capabilities of offshore operations are seriously insufficient. The equipment for long-distance recognition of underwater acoustic pulse signals of acoustic beacons and the ability to guide underwater autonomous vehicles to search for orientation is in urgent need of a device that can be assembled on a deep-water underwater vehicle (AUV) platform for the orientation guidance of acoustic beacons. Provide the most direct guidance for underwater vehicle operations, improving the efficiency of underwater search and positioning operations

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