A Dissolved Oxygen Control System for Aquaculture Ponds Based on Wireless Sensor Networks

Abstract

By aiming at characteristics of dissolved oxygen parameters of aquaculture pond environment such as large working condition area, non-linear variety, and great inertia, and unbalance pond environment dissolved oxygen distribution, the invention discloses an aquaculture pond dissolved oxygen control system of a wireless sensor network. The aquaculture pond dissolved oxygen control system is constituted by an aquaculture pond environment dissolved oxygen acquisition and control platform, a pond dissolved oxygen cascade control system based on a composite controller, and an expert system of setting aquaculture pond environment dissolved oxygen based on economic optimal reasoning. The aquaculture pond dissolved oxygen control system is advantageous in that the control stability and the control precision of the aquaculture pond dissolved oxygen are improved, and important popularization and application values are provided for the economic benefit of the aquaculture pond.

Description

technical field [0001] The invention relates to the technical field of intelligent control equipment, in particular to an intelligent control system for dissolved oxygen in aquaculture ponds based on a wireless sensor network. Background technique [0002] The amount of dissolved oxygen in the aquatic pond directly affects the healthy growth of fish. When the dissolved oxygen in the water drops from 4.5 mg / L to 3.5 mg / L, the fish's digestion and utilization of bait will decrease by 50%, and the bait coefficient will increase by more than 50%. ;When the dissolved oxygen drops below 3 mg / L, it will have a greater impact on the fish's feeding, digestion and health; if the dissolved oxygen continues to drop below 1 mg / L, most fish will appear floating heads Phenomenon, continuous decline will cause hypoxia and suffocation death. According to the long-term breeding practice of aquatic science and technology workers, the dissolved oxygen in the water body of general breeding pond...

AI Technical Summary

Problems solved by technology

In order to solve the problems of wiring difficulty, poor flexibility and high cost in the current automatic monitoring system of aquaculture water quality, an aquaculture water quality monitoring system based on wireless sensor network was constructed.

The development of these systems has effectively promoted the healthy and rapid development of the aquaculture industry, but these control systems have not combined the large working area of ​​dissolved oxygen parameters in aquaculture ponds, the nonlinearity of dissolved oxygen changes and large inertia, and the distribution of dissolved oxygen parameters in ponds Unbalanced and other characteristics, fundamentally solve the problems of unstable dissolved oxygen parameters in aquaculture ponds, low control accuracy and slow system response speed

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