Device and method for forecasting survival rate of freshwater fish based on passive acoustic information
A technology for predicting device and survival rate, applied in fish farming, radio wave measurement system, instrument, etc., can solve undiscovered problems, achieve the effects of avoiding adverse effects, non-destructive testing, and reducing farming or transportation costs
Active Publication Date: 2017-02-08
HUAZHONG AGRICULTURAL UNIVERSITY
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The invention belongs to the technical field of quality analysis of agricultural products and specifically relates to a device and a method for forecasting survival rate of freshwater fish based on passive acoustic information. The device for extracting an original fish acoustic signal comprises a fish box, wherein a hydrophone is arranged in the fish box; the hydrophone is respectively connected with an acoustic recorder; sound-insulating cotton is arranged on the exterior of the fish box. The method for forecasting survival rate of freshwater fish comprises the following steps: collecting the original fish acoustic signal; performing de-noising treatment on the fish acoustic signal; extracting characteristic parameters of the fish acoustic signal, including short-time average energy, short-time average zero-crossing rate and frequency band energy; constructing a feature vector; dividing a sample set; selecting the feature frequency band of the fish acoustic signal; establishing a forecasting model for survival rate of freshwater fish. The forecasting model for survival rate of freshwater fish established according to the method provided by the invention can realize online detection for the survival rate of freshwater fish, can be used for detecting the survival rate of the fish in the processes of fresh water fish breeding and live fish transportation and has a significance in increasing the survival rate of the fish in the processes of fresh water fish breeding and live fish transportation.
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De noisingSurvival rate +13
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