Method and system for underwater short-distance data communication through light-emitting diode (LED) light source

Abstract

The invention discloses a method and a system for underwater short-distance data communication through a light-emitting diode (LED) light source. The method comprises the following steps that: a transmitting terminal codes a data signal to be transmitted, and the coded signal modulates the LED light source to transmit an LED light signal, wherein the LED light signal comprises data information to be transmitted; and a receiving terminal performs photoelectric conversion and demodulation on the received LED light signal, and then restores the data signal to be transmitted. In the method, the LED light signal serves as a carrier for data communication underwater. Compared with the underwater data communication technology adopting the acoustic technology in the prior art, the underwater short-distance data communication manner adopting the acoustic technology has the advantages of high bandwidth, small propagation delay, high propagation rate and the like.

Description

Method and system for underwater short-distance data communication with LED light source technical field The invention relates to the technical field of optical communication, in particular to a method and system for underwater short-distance data communication of an LED light source. Background technique For underwater group operations, information communication between divers is the guarantee for efficient and accurate execution of tasks, and it is also the prerequisite for the smooth development of teamwork. Due to the particularity of the underwater environment, divers can only rely on gestures to transmit some simple messages, which seriously restricts the development of large-scale, high-precision underwater operations. At present, acoustic communication technology is widely used in underwater wireless communication. Acoustic communication technology has the advantages of long communication distance and high reliability, and has been widely used in the field of unde...

AI Technical Summary

Problems solved by technology

However, underwater acoustic communication also has many limitations: such as long transmission delay and low transmission rate of underwater acoustic channel

In the process of realizing the present

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