Underwater audio optical communication system and method with direction sensing auxiliary function
An optical communication system and auxiliary function technology, applied in the field of communication and information, can solve the problems of inability to hear the sound to distinguish the direction of the sound source, weak sense of underwater direction, etc., so as to improve the signal-to-noise ratio, avoid underwater dizziness, and enhance the strength. Effect
Active Publication Date: 2021-07-16
南京敏智达科技有限公司
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Problems solved by technology
[0004] However, underwater audio communication based on optical communication also has certain problems. Due to the complexity of the underwater environment, divers cannot distinguish the direction of the sound source by listening to the sound underwater, that is, the sense of direction underwater is not strong. Considerations for Underwater Audio Communications
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[0018] The present invention will be further described below in conjunction with the accompanying drawings.
[0019] The invention includes a transmitting system and a receiving system. figure 1 It is a block diagram of the launch system of the present invention, such as figure 1 As shown, the launch system includes:
[0020] Audio input equipment, which can be a microphone and other equipment that can convert voice signals into electrical signals;
[0021] The transmitter circuit module includes the first-stage signal amplification circuit and multiple sets of LED drive circuits. The main body of the LED drive circuit is a transconductance amplifier; for example, the transconductance amplifier can be built with CREE XPE series blue LEDs and LM324 operational amplifiers.
[0022] LED group, a number of LEDs that can emit light signals.
[0023] First of all, the voice signal is converted into an electrical signal through the audio input device and enters the transmitting ci...
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The invention discloses an underwater audio optical communication system and method with a direction sensing auxiliary function, the underwater audio optical communication system comprises an optical signal transmitting system and an optical signal receiving system, the optical signal transmitting system comprises an audio input device, a transmitting circuit module and a light emitting device; the optical signal receiving system comprises an optical receiving module, a receiving circuit module and an audio output device, the optical receiving module comprises a first optical receiving device and a second optical receiving device, the first optical receiving device and the second optical receiving device are used for receiving optical signals from different directions, and the audio output device comprises a first sound channel and a second sound channel. The receiving circuit module is used for converting optical signals received by the first optical receiving device or the second optical receiving device into electric signals played through the first sound channel or the second sound channel. The right ear sound channel of the receiving system is connected with the signal corresponding to the right photodiode, so that the direction of the signal can be distinguished through the sound of the left and right sound channels, and the direction sense of underwater communication is enhanced.
Description
technical field [0001] The invention relates to an underwater audio-optic communication system with a sense of direction auxiliary function, which belongs to the field of communication and information technology. Background technique [0002] Traditional underwater acoustic communication technology has many shortcomings such as low communication rate, high delay, narrow bandwidth, large equipment size, high power consumption and cost, and cannot effectively improve the communication transmission rate; in addition, electromagnetic waves are severely attenuated underwater and cannot Realize long-distance high-speed communication underwater. With the further exploration and development of marine resources by humans, underwater high-speed, convenient, real-time, and stable communication is a problem that needs to be solved urgently. [0003] The application and development of visible light communication technology provides a new technical solution to solve this communication pr...
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IPC IPC(8): H04B10/80H04B10/50
CPCH04B10/80H04B10/502
Inventor 朱秉诚陈鹏陈志敏史弘历
Owner 南京敏智达科技有限公司