Gravity force type deep water grille box prediction type control method and its special apparatus

Abstract

The invention discloses a predictive control method of a gravity type deep-water net cage and a special device thereof. The gravity type deep-water mesh cage is provided with a net cage lifting control device which can control the lifting of the net cage; a computer is connected with the net cage lifting control device; the computer is further connected with a hydrologic data collection device; and the computer can process the hydrologic data collected by the hydrologic data collection device and control the net cage lifting control device according to the processing result. The computer predicts the force acted on a rope by the numerical simulation, and controls the net cage lifting control device to cause the net cage to sink so as to avoid wind wave when the predicted value is more than a warning value. The use of the computer numerical simulation technology can effectively improve the monitoring function and the prediction function of the method and the device thereof. A computer program can correctly test the force acted on the rope of a net cage mooring system according to hydrologic conditions and the multi-parameter coupling results so as to play the function of predicting the force acted on the rope, and make a decision to control the lifting of the net cage, thus reducing the load of the net cage mooring system, ensuring the production safety and saving energy sources.

Description

technical field [0001] The invention relates to a predictive control system for a gravity deep-water net cage, in particular to a predictive control method and a special device for a gravity deep-water net cage. Background technique [0002] Due to excessive marine fishing and the destruction of the offshore marine environment, the production of wild seafood is shrinking year by year. Sea ranching has always played an important role in meeting people's growing demand for high-quality seafood. [0003] According to the estimation of authoritative experts in the world, by 2035, the annual output of aquaculture in the world will reach 62 million tons. However, if the annual consumption is increased by 1%, the annual output of breeding must reach 124 million tons to meet the human demand for animal protein in the new century. According to the classification statistics of the world aquaculture production by FAO in 1996, the aquaculture production of seawater fish only accounts ...

AI Technical Summary

Problems solved by technology

The existing technology uses a single-chip computer to automatically control the dive of the net cage when the wind and waves reach a certain intensity. Simply relying on the wind and waves as a control parameter will cause untimely or wrong dive commands, so this method has certain defects.

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