Dissolved oxygen observe and control system and plant growth nutrient fluid based on fuzzy neural network control

A fuzzy neural network and fuzzy control technology, which is applied in the field of plant growth nutrient solution and dissolved oxygen measurement and control system, can solve the problems that traditional control strategies are difficult to obtain satisfactory control effect, and nutrient solution changes are complicated.

Inactive Publication Date: 2008-11-12
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

[0004] The changes of various components, EC value, pH value and dissolved oxygen concentration in the nutrient solution are very complicated, and it is difficult to establish an accurate mathematical model for description, and it is difficult to obtain satisfactory control effect with traditional control strategies

Method used

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  • Dissolved oxygen observe and control system and plant growth nutrient fluid based on fuzzy neural network control
  • Dissolved oxygen observe and control system and plant growth nutrient fluid based on fuzzy neural network control
  • Dissolved oxygen observe and control system and plant growth nutrient fluid based on fuzzy neural network control

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Embodiment Construction

[0017] A plant growth nutrient solution and dissolved oxygen measurement and control system based on fuzzy neural network control, including a nutrient solution circulation system, a fuzzy neural network controller and a microcontroller.

[0018] The nutrient solution circulation system is composed of a cultivation bed, a nutrient solution pool, a liquid supply pipeline and a return pipeline.

[0019] The cultivation bed is used to hold nutrient solution, provide nutrients and water to crops, and create a good rhizosphere environment for crop root growth. The nutrient solution pool is a container for storing and supplying the nutrient solution of the cultivation bed. The solutions in the mother liquor tank, the acid solution tank, the lye tank and the clear water tank flow into the nutrient solution pool under the control of the electromagnetic valve. The liquid supply pipeline transports the nutrient solution in the liquid storage tank to the cultivation bed, and is composed ...

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Abstract

The invention relates to a measurement and control system of plant growing nutrition solution and dissolved oxygen, which is based on fuzzy neural network control; the measurement and control system consists of a nutrition solution circulating system, a fuzzy neural network controller and a microcontroller; aiming at the problems in the regulation and control process of nutrition solution, the measurement and control system adopts a fuzzy neural network control theory to carry out intelligent control to various nutrition solutions required by plant growth and controls the parameters such as the components in the nutrition solution(e.g. NO3<->, K<+> and Ca<2+>, and the like), EC value, pH value, the concentration of dissolved oxygen, and the like, at set values which can meet the requirements for plant growth.

Description

technical field [0001] The invention relates to a plant growth nutrient solution and a dissolved oxygen measurement and control system based on fuzzy neural network control, belonging to the technical field of soilless cultivation in agriculture, forestry and planting. Background technique [0002] Since the 1970s, controlled-environment agriculture has been extensively researched and developed to meet the requirements for the quality, yield, origin, off-season, environmental protection and sustainable development of various agricultural products. One of the main directions of controlled environment agriculture is the application of plant nutrient solution to realize the soilless cultivation of plants. Soilless cultivation has the characteristics of protecting the environment, saving water, and overcoming continuous cropping obstacles. At the same time, it can also reduce the infestation of crops by diseases and insect pests, and also prevent parasite eggs brought by the ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418G05B13/02A01G31/02
CPCY02P60/21Y02P90/02
Inventor 戈振扬高国涛王涛
Owner KUNMING UNIV OF SCI & TECH
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