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Underwater blue-green optical communication system with adjustable rate and variable distance

A communication system, blue-green light technology, applied in the field of underwater blue-green light communication system, can solve the problems that the underwater blue-green light communication rate can be adjusted and the distance can be changed.

Active Publication Date: 2021-11-26
武汉船舶通信研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the two communication methods have their own advantages and disadvantages, and neither can meet the requirements of adjustable underwater blue-green light communication rate and variable distance.

Method used

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  • Underwater blue-green optical communication system with adjustable rate and variable distance
  • Underwater blue-green optical communication system with adjustable rate and variable distance
  • Underwater blue-green optical communication system with adjustable rate and variable distance

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Embodiment Construction

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0036] The terms "first", "second", "third" and the like in the description and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

[0037] figure 1 It is a schematic diagram of the structural composition of an underwater blue-green optical communicatio...

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Abstract

The invention discloses an underwater blue-green optical communication system with an adjustable rate and a variable distance, and the system is of a transmitting-receiving integrated structure, and comprises a transmitting light source, a modulation circuit, a condensing lens, a receiving optical assembly, and a signal processing assembly. The emission light source comprises an LD light source and an LED array light source formed by combining a plurality of LED light sources. Each LED light source is controlled by an independent switch; the modulation circuit controls the emission light source to output optical signals of different types or powers; the condensing lens is connected with the emission light source through a spatial light path, and converges and collimates light signals output by the emission light source; optical signals sent by the neighbor nodes are received and converged; the receiving optical assembly is arranged on the side, away from the condensing lens, of the emitting light source; the signal processing assembly converts the optical signal into an electric signal and recovers original data; and according to the invention, short-distance and long-distance light energy requirements and low-rate and high-rate variable requirements are met, and alignment of two communication parties can be effectively realized.

Description

technical field [0001] The present application relates to the technical field of underwater wireless optical communication, and more specifically, relates to an underwater blue-green optical communication system with adjustable rate and variable distance. Background technique [0002] The existing underwater wireless communication methods are mainly divided into three types: underwater acoustic communication, radio frequency communication and optical communication. With the advantages of long transmission distance and reliable performance, underwater acoustic communication still occupies a dominant position in underwater wireless communication technology. However, because the available bandwidth of sound waves is limited to the low frequency range of 20kHz, its transmission rate is limited to tens of kb / s, and there are defects such as high delay, narrow bandwidth, and obvious multipath effect. However, radio frequency communication can achieve underwater communication with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04B10/80H04B10/40H04B10/50H04B10/564
CPCH04B10/116H04B10/80H04B10/40H04B10/502H04B10/501H04B10/564
Inventor 江桂英陈思井肖云周金荣费礼李亚平文柯吴夏颖万梓傲宫鹏飞
Owner 武汉船舶通信研究所
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