Real-time fish stock monitoring and fish amount estimating system based on wireless communication network

Abstract

The invention provides a real-time fish stock monitoring and fish amount estimating system based on a wireless communication network, which mainly comprises an underwater acoustic transducer, a fish finder processor and a micro-processing unit, wherein the micro-processing unit detects echo reflection signals of a fish stock and extracts an average value of the rear echo reflection strength within a period of time in a specific water depth range; and fish stock mapping information in an echo reflection mapping graph formed by echo signals is extracted, and remote transmission and display of fish stock information are realized. The system can also be used for predicating the fishing yield besides displaying fish finder images in real time. The system provided by the invention can be applied to a plurality of fields such as real-time monitoring for fixed net fishery and the sea net cage breeding industry, observation of artificial reef fish-gathering effects, fish stock detection under an artificial fish-gathering device in tuna seine purse fishery and the like, and has very important significance for improving the production efficiency of marine fishery.

Description

technical field [0001] The invention relates to a moving target monitoring system, in particular to a real-time fish monitoring and fish quantity estimation system based on a wireless communication network. [0002] It is used in real-time monitoring of fixed net fishery, marine cage aquaculture, observation of fish collection effect on artificial reefs, and fish swarm detection under artificial fish collection devices in tuna purse seine fisheries. Background technique [0003] Remote monitoring technology is required for deep-water cage culture in the ocean, the amount of fish fed into the net in the custom-made net fishery, the fish collection effect of artificial reefs in marine pastures, and the amount of fish under the artificial fish collection device in the tuna purse seine fishery. . Usually, these remote monitoring uses video monitoring, but at night or when the sea is turbid, the scope of video monitoring is very small. Ultrasound is an effective way to transmit...

AI Technical Summary

Problems solved by technology

Usually, the fish finder can only display the echo reflection intensity of objects in the water, and cannot estimate the amount of fish detected

In addition, ordinary fish finders do not have wireless communication functions. Although there are wireless fish finders on the market, these generally communicate at short distances through Bluetooth or wifi, and the communication distance is limited.

[0004] In recent years, the mobile communication network has played a very important role in remote monitoring, but due to the huge amount of echo data of ordinary fish finders, it is not practical to use the mobile communication network to directly transmit the collected data

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