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Method for evaluation of fish-farming water quality grade

A technology of breeding water quality and evaluation method, applied in the field of grade evaluation, can solve the problems of difficult grade classification and large number of grade classification

Inactive Publication Date: 2013-07-24
SUN YAT SEN UNIV
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Problems solved by technology

Through this method, not only the difficulty of grade classification and the large number of grade classification are solved, but also the advantages and disadvantages of different water quality factors under the agreed grade can be intelligently obtained, so that the pond water quality can be comprehensively evaluated

Method used

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Embodiment Construction

[0021] The present invention provides an intelligent evaluation method for the water quality grade of live fish. The basic idea is: to evaluate the obtained pond water quality information in real time through the pond water quality evaluation model, so as to provide a favorable reference for pond workers , has achieved the purpose of real-time monitoring of pond water quality.

[0022] The specific steps are as follows Figure 6 Shown:

[0023] 1. By placing the water quality detector in the aquaculture pond, it is used to obtain the values ​​of six water quality factors in the water quality, namely water temperature, pH, dissolved oxygen, ammonia nitrogen, nitrite nitrogen and sulfide, assuming that the six obtained respectively The values ​​of the term factors are sw_value, ph_value, dod_value, nh_value, nah_value, hso_value.

[0024] 2. Through wireless transmission protocols, such as 3G, WIFI for data transmission, the data is transmitted to the database on the server. ...

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Abstract

The invention relates to a method for evaluation of fish-farming water quality grade. The basic idea is as below: according to characteristics of different ponds, the ponds are divided into three types, warm water fish-farming, frozen water fish-farming and mixed water fish-farming. Based on advices of specialists, optimal range and appropriate range of 6 water quality factors (water temperature, pH value, dissolved oxygen, ammonia nitrogen, nitrogen sulfite and sulfide) of the three types of fish-farming are obtained. A composite Gauss trapezoidal membership function is employed to construct a fish quality evaluation model; through the analysis of the model, each factor of water quality is obtained; through a membership value and grade conversion table, specific grade of each water factor is obtained; then through analysis of a grade evaluation number and grade conversion table and a grade number table, a comprehensive grade evaluation of pond water quality is obtained finally. The invention overcomes the problems of various water quality grade division and hard classification, considers the 6 factors of water quality from a comprehensive perspective, cleverly reduces difficulty of water quality grade division through the conversion relation between the level number and grade, realizes the intelligent grade division and grade evaluation, and improves the efficiency of pond culture.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to an intelligent evaluation method for the water quality level of live fish cultivation. Background technique [0002] my country is a big country with aquaculture. The level of aquaculture technology basically represents the level and development direction of developing countries. The main feature is that it is large-scale, but still mostly aquaculture under the natural ecological conditions of ponds. Fish farming is carried out under the natural ecological conditions of the pond, and the quality of the pond water quality has become an important factor restricting the survival of fish and the production of aquaculture. In recent years, my country has been continuously strengthening the monitoring of pond aquaculture water quality to ensure that fish can survive under a suitable water quality condition, thereby improving the quality of aquatic product aquaculture in our country. In orde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18
Inventor 常会友林海马争鸣路永和胡勇军
Owner SUN YAT SEN UNIV
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