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Control method of smart greenhouse system driven by crop control model

A model-driven, greenhouse technology, applied in the direction of control/regulation system, non-electric variable control, simultaneous control of multiple variables, etc., can solve the problem of ignoring the interaction of environmental factors, it is difficult to ensure the control effect of the greenhouse control system, and other factors are not considered Change and influence and other issues, achieve the effect of strong theory and solve the problem of tacit knowledge that is difficult to promote and disseminate

Active Publication Date: 2019-02-01
寿光市众恒唐韵信息科技有限公司
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Problems solved by technology

However, this method requires manual intervention to ensure the normal function of the system at different growth stages of the crops, and only realizes semi-automation.
In addition, the traditional greenhouse control system usually adopts single-factor control, the control method is relatively simple, but the interaction between environmental factors is ignored, and the changes and influences of other factors are not considered when adjusting a certain environmental factor.
For example, the influence of humidity changes on temperature is not considered when controlling temperature, and generally only a single temperature adjustment mechanism is controlled, and the influence of other actuator actions on temperature is not considered, so single-factor control is difficult to ensure that the multi-input and multi-output greenhouse control system has a good performance. The control effect

Method used

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Effect test

Embodiment 1

[0034] (1) Determine the quantitative model of interaction

[0035] (1) Determine the temperature during tomato growth. Different growth and development stages of tomato have different temperature requirements.

[0036] Seed germination stage: determine the optimum temperature is 25°C to 30°C, when the temperature is lower than about 12°C (biological starting point temperature) or exceeds 40°C (biological upper limit temperature), it will be difficult to germinate;

[0037] Seedling stage: determine that the suitable temperature during the day is 20°C-25°C, and the suitable temperature at night is 10°C-15°C. When the temperature reaches 40°C (biological upper limit temperature), stop growing. When the temperature drops below 10°C, the growth is slow, and at 5°C (biological starting temperature), the plant stops growing;

[0038] Flowering period: Make sure that the suitable temperature during the day is 20°C-26°C, and the suitable temperature at night is 15°C-20°C. When the ...

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Abstract

The invention relates to a crop control model driven intelligent greenhouse system control method, belonging to the technical field of greenhouse control systems. The method includes according to the requirement of the mechanism parameters of crop inner growth and development, crop output, economy and quality need, determining the interaction quantification model of greenhouse environmental factors and mineral nutrient elements varying along the different growth stages of crops; acquiring the greenhouse environmental factor data and acquiring the plant protection process data; based on the constructed interaction quantification model, the plant protection gardening quantification model, and the greenhouse environmental factor data, driving the greenhouse equipment and reminding the plant protection personnel to control the greenhouse environmental factors and gardening operations; and adjusting and optimizing the interaction quantification model and the plant protection gardening quantification model according to the data and information in the production process to be further applied to the production. Therefore, the whole crop control system runs in a closed-loop autonomous positive optimization way.

Description

technical field [0001] The invention relates to a control method for a smart greenhouse system driven by a crop control model, and belongs to the technical field of greenhouse control systems. Background technique [0002] With the development of greenhouse cultivation, it is becoming more and more common to grow crops through greenhouses. The main purpose of the greenhouse is to change the crop growth environment. According to the best growth conditions for crop growth, the greenhouse climate can be adjusted to meet the needs of crop growth throughout the year. It is not affected by climate and soil conditions and can avoid changes in the four seasons of the outside world. It is a greenhouse facility that can produce a variety of different vegetables, flowers and other off-season crops on a limited land year round. [0003] However, the crops in the greenhouse require different production environments at different growth stages. For example, in the germination stage, seedl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D27/02
CPCG05D27/02
Inventor 刘勇刘惜诺张俊利葛怀友
Owner 寿光市众恒唐韵信息科技有限公司
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