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Mechanism and method for establishing acousto-optic fused underwater communication link

An underwater communication and link establishment technology, applied in the direction of sound wave re-radiation, sustainable communication technology, ultrasonic/sonic/infrasonic transmission system, etc., can solve the problems of easy information loss, communication interruption, poor positioning accuracy, etc. The effect of high data transmission rate, strong confidentiality and short delay

Inactive Publication Date: 2018-08-31
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, these underwater communication systems have the following two problems: one is that the communication is unreliable, and it is impossible to establish a reliable communication link underwater
It is impossible to confirm whether both parties can communicate before the communication, and the sender cannot know whether the information is received correctly
When the wireless communication quality is not high, the communication is interrupted, so the information is easily lost
The second is that the positioning accuracy is poor, which cannot meet the positioning requirements of underwater communication, and it is difficult to realize underwater optical positioning

Method used

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  • Mechanism and method for establishing acousto-optic fused underwater communication link
  • Mechanism and method for establishing acousto-optic fused underwater communication link
  • Mechanism and method for establishing acousto-optic fused underwater communication link

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] A submarine equipped with a communication device described in this example. Specifically, submarine A and submarine B are relatively stationary, and the steps of the communication link establishment process are:

[0072] S1. Submarine A first emits ultrasonic waves through the acoustic transponder installed on it, and the acoustic transducer on submarine B receives the ultrasonic waves emitted by submarine A, and realizes the positioning of submarine A through the long-range ultra-short baseline positioning system. Equipment A The distance x from device B is equal to 200;

[0073] S2. An adaptive connection mechanism is adopted. After 1s, submarine B locates A again, and the relative displacement △x and relative displacement angle △θ of submarine A to submarine B are obtained. Judging the relative position of submarine A and submarine B, submarine A and submarine B are relatively stationary, and perform a second handshake.

[0074] image 3 It is the second handshak...

Embodiment 2

[0081] A submarine equipped with a communication device described in this example. Specifically, the maximum distance x allowed for communication 0 Equal to 500m, the maximum phase shift angle θ allowed during communication 0 equal to 45°.

[0082] S1. Submarine A first emits ultrasonic waves through the acoustic transponder installed on it. The acoustic transducer on submarine B receives the ultrasonic waves emitted by submarine A, and realizes the positioning of submarine A through the long-range ultra-short baseline positioning system. Submarine A The distance x from submarine B is equal to 200;

[0083] S2. An adaptive connection mechanism is adopted. After 1s, device B locates A again, and obtains that the relative displacement △x of submarine A relative to submarine B is equal to 100m, and the relative displacement angle △θ is equal to 30°. Determine the relative position of submarine A and submarine B. The relative displacement △x and relative displacement angle △θ...

Embodiment 3

[0095] A submarine equipped with a communication device described in this example. Specifically, the maximum distance x allowed for communication 0 Equal to 500m, the maximum phase shift angle θ allowed during communication 0 It is equal to 45°, the relative displacement △x of submarine A relative to submarine B is equal to 200m, and the relative displacement angle △θ is equal to 30°.

[0096] S1. Submarine A first emits ultrasonic waves through the acoustic transponder installed on it. The acoustic transducer on submarine B receives the ultrasonic waves emitted by submarine A, and realizes the positioning of submarine A through the long-range ultra-short baseline positioning system. Submarine A The distance x from submarine B is equal to 200m;

[0097]S2. An adaptive connection mechanism is adopted. After 1s, device B locates A again, and obtains that the relative displacement △x of submarine A relative to submarine B is equal to 400m, and the relative displacement angle △...

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Abstract

The present invention discloses a mechanism and a method for establishing an acousto-optic fused underwater communication link, used for establishment of a underwater communication system. The mechanism has the technical scheme characterized in that: any of underwater equipment, naval vessels or marine equipment platforms is provided with a underwater acoustic transducer array, a transmitting transducer, a visible light communication transmitter, a visible light communication receiver and a signal processor; positioning between underwater acoustic transducers and acoustic responders in a underwater acoustic communication system is achieved though a long-range ultra-short baseline system; a blue-green laser light source is adopted by a visible light communication system, an automatic alignment module is achieved at a receiving end; the signal processor is used for processing signals, so as to achieve self-adaptive communication acknowledgement mechanism during the process of communication. The mechanism and the method of the invention have advantages in the aspects of bandwidth, data transmission rate, security, energy consumption, time delay, etc.

Description

technical field [0001] The invention relates to a mechanism and method for establishing an underwater communication link of acousto-optic fusion, in particular to a mechanism and method for establishing a communication link of sound-laser fusion in underwater communication, and belongs to the technical field of underwater wireless communication. Background technique [0002] With the continuous depletion of land resources, the development of the sea has more and more special strategic status and military value. Underwater equipment such as submarines, unmanned underwater vehicles and underwater sensors play a key role in exploring and competing for marine resources. If a reliable underwater communication link can be established in the sea area, it will have a great impact on the country's military and economic belt. for deeper change. At present, underwater communication equipment is commonly used in underwater acoustic communication, ultra / very low frequency radio communic...

Claims

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Application Information

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IPC IPC(8): H04B10/116H04B11/00H04B13/02G01S15/88
CPCG01S15/88H04B10/116H04B11/00H04B13/02Y02D30/70
Inventor 黄浩余莎莎李岳彬胡永明顾豪爽
Owner HUBEI UNIV
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