Liftable communication relay system and method

Abstract

The invention provides a liftable communication relay system and method for information interaction between underwater users and a ground control center. The liftable communication relay system comprises an antenna cabin for information transmission and receiving between the underwater users and the ground control center, a relay control cabin for controlling upward floating or downward diving of the antenna cabin under the water and managing underwater and ground users, and a lifting device for specifically carrying out lifting actions of the antenna cabin, wherein the antenna cabin comprises a first water sound modulator-demodulator and a satellite communication terminal at the top of the antenna cabin. The first water sound modulator-demodulator and the relay control cabin located under the water perform bidirectional wireless water sound communication, and the satellite communication terminal and the ground control center perform data or instruction interaction in a wireless mode. The lifting device achieves upward floating or downward diving of the antenna cabin under the water under the control of the relay control cabin. The relay control cabin manages data transmission among the underwater and ground users and monitors the depth and posture data of the antenna cabin through water sound wireless communication to control work and stopping of the lifting device.

Description

technical field [0001] The invention relates to a communication system for completing information interaction between an underwater user and a ground user, in particular to a liftable communication relay system and method. Background technique [0002] Electromagnetic waves are the most important carrier of wireless communication information in the air, but the energy of electromagnetic waves will attenuate rapidly in water and cannot be transmitted over long distances. Underwater generally adopts underwater acoustic communication. Therefore, to carry out information interaction on the water surface and under the water surface, it is necessary to realize the conversion of electro-acoustic signals, which is a shortcoming of the current technology. The existing solution is to rely on the ocean underwater submersible buoy system, or through pre-set procedures, to collect and store various sensor data independently, and the data can only be obtained after the submersible buoy s...

AI Technical Summary

Problems solved by technology

[0004] 1. The underwater winch and the buoy are connected by wired cables, the cost is high, the cables are fragile and easy to be entangled, and the possible consequence is that the lifting life is reduced;

[0005] 2. During the process of buoy surfacing and diving into the sea, the power consumption of the system is high, and the battery life of frequent lifting work is insufficient;

[0006] 3. To only realize the data transmission from underwater to the ground shore station, it is necessary to specify the time task before deployment, and work with it. The ground shore station does not have remote control command for underwater users, and lacks the flexibility of use;

This invention is independent for each standard, which is inconvenient for underwater networking

It can only be lifted out of the water, and the ground station is used for indirect networking and coordination, so the feasibility and real-time performance are poor

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