Underwater net cage multi-beam fish driving monitoring system and method

Abstract

The invention relates to the technical field of sonic wave fish driving and aims to provide an underwater net cage multi-beam fish driving monitoring system and an underwater net cage multi-beam fish driving monitoring method. The monitoring system comprises an underwater net cage, an underwater monitoring device and a data processing device, wherein the underwater monitoring device comprises a phased array transducer array and a high-frequency sonic wave oscillation circuit, which are arranged outside of the net cage; the data processing device comprises a data processing module, a first wireless transmission module, a computer control center and a second wireless transmission module, wherein the data processing module and the first wireless transmission module are distributed around the net cage, the computer control center is placed on a bank and the second wireless transmission module is connected with the computer control center; and the phased array transducer array and the high-frequency sonic wave oscillation circuit are both connected with the data processing module, and the data processing module, the first wireless transmission module, the second wireless transmission module and the computer control center are connected in sequence. The system and the method can determine the accurate position of the breakage of a net and can effectively prevent the fish stock for escaping from the net.

Description

technical field [0001] The invention relates to the technical field of sound wave fish repelling, in particular to a multi-beam fish repelling monitoring system for an underwater cage and a monitoring method thereof. Background technique [0002] With the increase of people's demand for fish food, the scale of domestic fish farming is getting bigger and bigger, and the technological development of fish farming is also accelerating. In the traditional shallow sea cage culture model, incidents of fish escaping due to cage damage occur from time to time. At present, underwater cameras are mostly used to monitor the conditions of the cages, but underwater cameras are only suitable for use in areas with good water quality. The images taken in turbid water quality are not high in definition, and it is difficult to effectively judge whether the cages are damaged. . [0003] At present, the main way to prevent fish from escaping is to install a protective grid underwater. When fis...

AI Technical Summary

Problems solved by technology

But this device also has some deficiencies: 1, can only find that the net cage is damaged, can not determine the specific location of the net cage damage; Prevent further escape of fish schools; 3. There are no specific devices and measures to reduce the number of misjudgments, resulting in a low accuracy rate of judging cage damage

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