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A method of automatically releasing bait on demand based on acoustic monitoring

A bait and automatic technology, applied in the field of acoustics, can solve problems such as water pollution, dependence, fish disease, etc., and achieve a universal effect

Active Publication Date: 2022-04-15
THE FIRST INST OF OCEANOGRAPHY SOA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: 1, rely on the experience of the breeder
Excessive bait will cause water pollution and cause fish disease

Method used

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  • A method of automatically releasing bait on demand based on acoustic monitoring
  • A method of automatically releasing bait on demand based on acoustic monitoring
  • A method of automatically releasing bait on demand based on acoustic monitoring

Examples

Experimental program
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Effect test

Embodiment Construction

[0053] The technical solution of the present invention will be further explained by the following examples, but the protection scope of the present invention is not limited in any form by the examples.

[0054] like figure 1 , figure 2 As shown, the automatic bait feeding method is mainly divided into three steps: underwater acoustic monitoring, threshold detection and feeding control. The threshold detection includes two parts: background noise threshold detection and feeding characteristic signal threshold detection, which are used as the judgment of fish eating status. in accordance with.

[0055] 1. Underwater Acoustic Monitoring

[0056] A non-directional hydrophone is arranged on the side of the bait outlet to monitor the environmental sound signal in real time.

[0057] 2. Threshold detection

[0058] The hydrophone is connected to a data processing module and a short-term data storage module; the signal collected by the hydrophone enters the data processing module...

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Abstract

The invention relates to a method for automatically throwing fishing bait on demand based on acoustic monitoring, belonging to the technical field of acoustics. The method arranges a non-directional hydrophone on the side of the fishing bait outlet to monitor ambient sound signals in real time; the hydrophone is connected to A data processing module and a short-term data storage module; the signal collected by the hydrophone enters the data processing module to obtain the background noise level and the eating feature signal level, and the processing results are stored in the storage module for background noise and eating feature analysis. Signal threshold detection; according to the magnitude of the background noise higher than the threshold and the energy value of the characteristic signal, output the control signal nc for bait feeding, nc=0~nc m , the value corresponds to the opening and closing size of the bait feeding switch, 0 is fully closed, nc m It is fully open; achieves the purpose of automatic control of bait delivery.

Description

technical field [0001] The invention belongs to the technical field of acoustics, and in particular relates to a method for automatically dropping fishing baits on demand based on acoustic monitoring. Background technique [0002] Fish farming is of great significance in providing food supply economically, making up for the shortage of marine fishing, and maintaining ecological balance. Fish breeding is an important part of fish farming. The common method at present is to feed fish regularly and quantitatively. The weak point of this way is: 1, depends on the experience of breeder. For how long each fish needs to be fed once, and how much amount to put in at one time, the breeder needs to explore for a long time and obtain through many experiments; 2, it is not conducive to popularization. The food intake of fish will vary with seasons and fish ages, and the experience of farmers has great limitations and cannot be promoted; 3. It is impossible to accurately determine the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/80G01H17/00
CPCA01K61/80G01H17/00Y02A40/81
Inventor 吕连港姜莹夏涛刘宗伟杨春梅郭景松
Owner THE FIRST INST OF OCEANOGRAPHY SOA
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