Portable diving communication device based on blue-light LED

Abstract

A portable diving communication device based on a blue light LED comprises a shell, an emitter, a receiver and a communication circuit board provided with a communication device. The communication device comprises a transmitting unit and a receiving unit, the transmitting unit comprises an analog signal input module, an analog signal modulator, a digital signal input module, an input ARM development board, a combiner, a three-stage amplifying circuit, a blue light LED driver, a photoelectric conversion module and a convergent lens, and the transmitting unit further comprises a transmitter. Thereceiving unit comprises a receiver, a pre-amplification circuit, a main amplification circuit, a detection filter circuit, a branching unit, an analog signal demodulator, an analog signal output module, an output ARM development board and a digital signal output module. The portable diving communication device has the advantages that the transmission speed is high, the transmission is stable, the system practicability is enhanced, and the development potential is great; the component cost is low; and the communication distance is prolonged, and the receiving area is enlarged to 360-degree space surface coverage.

Description

technical field [0001] The invention relates to the technical field of underwater communication, in particular to a portable diving communication device based on a blue light LED. Background technique [0002] Underwater communication is a difficult and urgent problem in modern communication technology. In the fields of ocean exploration, underwater rescue, underwater scientific research, ocean monitoring and other fields, diving equipment plays a vital role. Diving equipment commonly used in the prior art generally adopts: (1) long-wave radio transmission in the ultra-low frequency range, because the communication rate is extremely low, and the electromagnetic interference of underwater equipment is relatively large, so it has not been widely used in practical applications Applications. (2) Underwater acoustic communication has been developed relatively maturely in technology; however, the acoustic transmission speed in seawater is still relatively slow (not greater than ...

AI Technical Summary

Problems solved by technology

Diving equipment commonly used in the prior art generally adopts: (1) long-wave radio transmission in the ultra-low frequency range, because the communication rate is extremely low, and the electromagnetic interference of underwater equipment is relatively large, so it has not been widely used in practical applications Applications

(2) Underwater acoustic communication has been developed relatively maturely in technology; however, the acoustic transmission speed in seawater is still slow (not greater than 1500m / s), the communication rate is not high, and the equipment is large in size and expensive

The production cost of the above two is high, and there are defects such as poor communication quality, poor confidentiality, unstable signal, narrow bandwidth, and slow transmission speed. It is a great inconvenience; it not only limits the diver's range of activities, but may also endanger the diver's safety

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