Underwater sound communications and alarming method and device

Abstract

This method and device are used for the underwater cabins, e.g. dived sightseeing submarine to comm. and wreck alarm (CWA) with the commending ship or the dock control station. This underwater audio CWA device possesses simple circuit, compact structure, reliability, and efficiency. It saves energy, costs low and is easy to miniaturize. It adopts sideband CWA mode, co-uses the receiving modulating and emitting demodulating circuits. It not only builds an underwater audio comm. channel, but also offers a wreck alarm channel. The audio alarm signal offers position info for the searching and succoring ships. This system is also equipped with a recorder with a waterproof and stress-durable shell. This recorder records and stores all CWA audio info of whole process to offer an original info for the happened wreck analyzing. These meet the requirement of the effective safety measure submitted by the modern ship verification and raises the safety of the underwater tasks.

Description

technical field [0001] The present invention relates to underwater acoustic communication and alarm signal transmission of ships operating in water, in particular to methods and devices for underwater acoustic communication and alarm, in particular to fully submersible sightseeing submarines, other submersibles or underwater operating devices The invention discloses a method and a device for communicating with a surface ship or a wharf command station and providing a crash alarm. technical background [0002] At present, there is a lack of effective communication and accident alarm methods and devices between underwater operating devices (such as fully submersible sightseeing submarines, submersibles, robotic fish) and surface ships or wharf command platforms, so that underwater operating devices and The safety of its occupants cannot be effectively guaranteed. Once the underwater operating device crashes underwater, it cannot send a disaster alarm signal to the surface ship...

AI Technical Summary

Problems solved by technology

[0004] (1) There is no underwater acoustic communication and accident alarm device between the underwater operation equipment and the surface command ship or wharf control station, and it does not meet the requirements of modern ship inspections. Effective safety measures must be provided for the underwater operation of underwater operation equipment Require

[0005] (2) The underwater operation device has no underwater sound alarm working mode, and the occupants on the underwater operation device (including operating, management and sightseeing personnel) lack effective safety guarantee means. Acoustic alarm signal, so that no hydroacoustic guidance or positioning signal can be issu

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