Marine noise source synchronous proximity recording device

Abstract

The invention provides a marine noise source synchronous proximity recording device, and relates to the technical field of marine monitoring. A surface carrier assembly comprises a floating body, a supporting tube and an electronic cabin. The supporting tube is vertically fixed to the floating body, and the top end of the supporting tube is sequentially provided with a marine sounding biological monitoring unit, a weather six-element measuring unit and an AIS receiving antenna from top to bottom. The weather six-element recording unit, the AIS recording unit, the marine sounding biological recording unit and a wave recording unit are located in the electronic cabin. The meteorological six-element measuring unit is connected with the meteorological six-element recording unit, the AIS receiving antenna is connected with the AIS recording unit, and the marine sounding biological monitoring unit is connected with the marine sounding biological recording unit; a wave energy driving device is connected with the floating body through a flexible cable. The device has the advantages of all weather, full sea conditions, ultra-long working time, complete monitoring types, wide coverage frequency spectrum range, controllable flight path and controllable marine noise source measurement range, and marine noise source monitoring can be carried out near the typhoon eye.

Description

technical field [0001] The invention relates to the technical field of ocean monitoring, in particular to an ocean noise source synchronous proximity recording device. Background technique [0002] In the marine environment, sound waves are the main means for detection, tracking, underwater acoustic communication, navigation, positioning, and underwater remote control. On the one hand, it can be known from the sonar equation that ocean noise is the interference background field of various sonars, and the performance of the sonar system is directly restricted by the ocean noise; A large amount of information such as the tectonic process, the behavior of marine vocal animals, etc., can be retrieved from the ocean noise data to obtain various information on the sea surface, sea water and seabed. Studies have shown that distant ships with a frequency in the ten-octave range of 50Hz to 500Hz are the main noise sources. It is generally believed that ships within 10 kilometers are...

AI Technical Summary

Problems solved by technology

Although the cost of AIS satellite data is low and the coverage is wide, there is a problem of time slot conflict, which reduces the detection probability of ships in a certain sea area of ​​interest. This is caused by the defects of the SOTDMA protocol itself. Solving this problem also increases the cost of monitoring a lot

[0004] Although the existing marine noise source recording buoy system is easy to deploy and recover, and is integrated with AIS receiving equipment, it has no biological recording function of ocean waves and ocean sounds. The monitoring range of marine noise sources drifts with the waves and is uncontrollable, and the battery capacity is limited. It cannot meet the long-term monitoring needs, and there is a risk of damage and failure to recover when working in harsh sea conditions near and far seas

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