Optical communication and positioning combination device applied for deep sea

Abstract

The invention discloses an optical communication and positioning combination device applied for the deep sea, and the device comprises a laser emitting device and a laser receiving device in communication with the laser emitting device. The laser emitting device comprises at least one laser module group which emits laser pulses at a certain frequency. The laser receiving device comprises at leastone lens and at least one photodiode. A laser signal is concentrated by the lens and received by the photodiode to obtain the laser intensity. The two-dimensional position information of the laser receiving device relative to the laser emitting device is obtained according to the laser intensity obtained by the photodiode and the geometrical parameters of the lens in the laser receiving device. The laser emitting device emits laser pulses at a one-multiple clock, and the laser receiving device receives the laser signal at a three-multiple clock, so as to realize laser communication between thelaser emitting device and the laser emitting device. The device can realize the communication and positioning of an underwater vehicle and a communication station under the condition of resisting excessive water pressure, and can also ensure the accuracy of communication and positioning.

Description

technical field [0001] The invention belongs to the field of deep sea communication, and in particular relates to a combination device of optical communication and positioning applied in deep sea. Background technique [0002] With the gradual development of marine exploration, underwater monitoring equipment needs to communicate with the base station equipment on the water in real time to realize data transmission and positioning of underwater monitoring equipment. Therefore, communication equipment with both communication and positioning functions has become a demand. Taste. [0003] The patent application with application publication number CN105807298A discloses a positioning and communication device for all-sea deep ocean equipment, which is installed on all-sea deep ocean equipment and communicates with Beidou navigation satellites, including: a photosensitive switch circuit that senses the illuminance of light and sends out level; the inclination sensor, which senses...

AI Technical Summary

Problems solved by technology

When the time difference between these multi-path light waves arriving at the receiving end is too long, it may even interfere with the next transmission signal, causing overlapping interference between symbols

Therefore, even if the existing optical communication equipment is used for underwater communication, it will inevitably cause distortion of the communication signal, which does not meet the needs

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