Water quality regulation and control system and method for factory aquaculture

Abstract

The invention provides a water quality regulation and control system and method for factory aquaculture. A dissolved oxygen prediction content at predicted time after a first preset time period is predicted according to water body parameters through collection of the water body parameters of a culture pond, the first preset time period is a lag time period of an aeration process, an oxygen consumption factor at the predicted time is determined according to culture behavior parameters and a fish activity law, an oxygen supply amount at the predicted time is determined according to the dissolvedoxygen prediction content, a dissolved oxygen standard content in a water quality standard for fisheries in China and the oxygen consumption factor, an oxygen supply regulation and control command isgenerated according to the oxygen supply amount at the predicted time, and a dissolved oxygen content of a water body in the culture pond is adjusted according to the oxygen supply regulation and control command; and namely an oxygen supply regulation and control command at current time is determined according to the dissolved oxygen prediction content at the predicted time and the oxygen consumption factor at the predicted time, so that aeration can be performed on the water body before an oxygen content in the water body is detected to be too low, the possible condition of fish death due tolack of oxygen is avoided, and loss caused by fish death due to the lack of the oxygen is avoided.

Description

technical field [0001] The invention relates to the technical field of aquaculture, and more specifically, to a water quality control system and method for industrialized aquaculture. Background technique [0002] Factory aquaculture is a production mode that integrates electronic technology, automation, civil engineering and other modern means to automatically control the whole process of aquaculture production under semi-enclosed or fully enclosed conditions. The biggest feature of this method is that it can always maintain better biological growth conditions under high-density breeding conditions, so as to achieve the purpose of shortening the breeding time, improving the breeding efficiency and reducing energy consumption. [0003] The most critical thing in industrialized aquaculture is the regulation of water quality, and the regulation of water quality includes the regulation of the dissolved oxygen content of the water body; at present, the regulation of the dissolve...

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Problems solved by technology

[0004] However, it takes a long time to increase the oxygen supply to the water body until the dissolved oxygen content in the water body reaches the qualified standard, that is, there is a hysteresis phenomenon in the oxygenation process. When the oxygen content is too low, the fish may die due to lack of oxygen. Mass death, causing unnecessary losses

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