Estimation system and method of factory-like circulating water cultured fish space

Abstract

The invention relates to an estimation system of a factory-like circulating water cultured fish space and an estimation method of the factory-like circulating water cultured fish space. The calculation system includes a near infrared camera, a near infrared light source and a processing device, wherein the near infrared camera and the near infrared light source are arranged at the upper part of a fish pond; optical axis rays of the near infrared light source are arranged at the upper part are perpendicular to the water face of the fish pond, and connected with the processing device; the infrared light source is used for supplementing light for the near infrared camera under the control of the processing device; the infrared camera is used for collecting a near infrared image of fishes under the control of the processing device; the processing device is further used for receiving the near infrared image to process and obtain the fish swimming speed. The estimation method is used for calculating the fish swimming speed. The calculation system can be applied to the factory-like circulating water cultured fish space with dark light; the growth environment of fishes is not changed, thus the growth is not influenced. The calculation system can monitor the swimming speed of fishes in real time and provide reliable basis for monitoring fish behaviors.

Description

Technical field [0001] The invention relates to fishery information technology, in particular to a system and method for estimating the swimming speed of fish in factory-based circulating aquaculture. Background technique [0002] As the scale of factory aquaculture grows, it is necessary to monitor the behavior of the aquaculture objects in real time. Among them, the swimming speed of fish is an important indicator to measure the behavior of fish groups. Therefore, timely and accurate acquisition of the swimming speed of fish can provide an important basis for subsequent behavior analysis (such as fish disease early warning, feeding control, etc.) . [0003] In the prior art, the estimation of the swimming speed of fishes mainly uses traditional machine vision methods, including image modeling and analysis. For example, Yu Xin et al. "Detection of fish school abnormal behavior based on optical flow method and feature statistics" ("Chinese Journal of Agricultural Engineering", 20...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a system and method for estimating the swimming speed of fish in industrialized recirculating aquaculture to solve the problem of obtaining fish swimming speed in a dark environment in the prior art by adding light sources or additional The problem of supplementing light and affecting the normal growth of fish

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