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Intelligent greenhouse control system and control method

A control system and greenhouse technology, applied in the field of greenhouses, can solve the problems of poor control methods, control delays, and regardless of external weather, so as to avoid frequent start and stop of the control system, improve accuracy and efficiency, and avoid repeated adjustments.

Pending Publication Date: 2022-08-05
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are still problems in the prior art 1. The monitoring system in the prior art 1 passively controls according to the changes of various parameters in the greenhouse. There is a problem of single control for the control of various parameters, and various parameters are not considered. The situation of mutual influence between them leads to delay in the control and inaccurate adjustment
Moreover, the irrigation method in the traditional greenhouse is too simple, which consumes a lot of electric energy and water resources, and is not energy-saving and environmentally friendly enough.
Since the various parameters in the greenhouse are affected by the outdoor weather at the same time, the control method in the prior art that does not consider the external weather is not effective
[0005] Therefore, an intelligent greenhouse control system and an intelligent greenhouse control method are needed to solve the problems of delay in the control system in the prior art, poor effect of single parameter mechanical adjustment, high energy consumption, and environmental protection.

Method used

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  • Intelligent greenhouse control system and control method

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Effect test

Embodiment 1

[0115] like figure 1 As shown, this embodiment provides an intelligent greenhouse control system, including a greenhouse body and a communication device, a processor, a detection device, an irrigation device, a temperature adjustment device, a ventilation device, a carbon dioxide gas fertilizer machine, and a humidity adjustment device installed on the greenhouse body. device, the irrigation device comprising:

[0116] Precision irrigation components, which are arranged around the plant, are used for precise watering of various parts of the root system of the plant,

[0117] a conveying assembly, one end of which is connected to a water supply device, and the other end is connected to the precise irrigation assembly for conveying irrigation water for the precise irrigation assembly,

[0118] a temperature control component, which is arranged on the conveying component near the precise irrigation component, and is used for adjusting the water temperature of the irrigation wate...

Embodiment 2

[0153] like figure 2 As shown, this embodiment provides the intelligent greenhouse control method of the system in Embodiment 1, including the following steps:

[0154] Determine the crop cultivated in the greenhouse, determine the growth state of each stage in the growth cycle of the crop, and determine the optimal range of the parameters of the greenhouse in the growth cycle of the crop;

[0155] Then according to the optimal range of each parameter, the set value of each parameter is substituted into the parameter control method, and the corresponding control method of the greenhouse at each growth stage of the crop is formed, which is recorded as the stage control method;

[0156] Then collect the current growth state image of the crop, compare the current growth state image with the growth state images of the various stages, determine the current corresponding growth stage of the crop, and execute the corresponding stage control method according to the current correspond...

Embodiment 3

[0195] The present embodiment is the method for calculating the irrigation amount according to the soil moisture in different positions in the embodiment 2,

[0196] The calculation method of irrigation amount in step A.1 is as follows:

[0197] First measure the soil moisture at each location, calculate the weighted average of the soil moisture at each location, obtain the average soil moisture in the area, record it as the current soil moisture, and calculate the difference between the current soil moisture and the soil moisture set value , recorded as the soil moisture difference,

[0198] Then, the soil water content difference is obtained according to the soil moisture difference, and the required irrigation amount is calculated according to the soil water content difference and the soil irrigation volume; the specific formula is:

[0199] Irrigation volume = soil irrigation volume × soil moisture difference × [1-(soil bulk density / 2.65)],

[0200] Soil irrigation volum...

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Abstract

The invention relates to the field of greenhouses, in particular to an intelligent greenhouse control system and method. Comprising a greenhouse body and a communication device, a processor, a detection device and an irrigation device which are installed on the greenhouse body, the irrigation device comprises an accurate irrigation assembly which is arranged around a plant and used for accurately watering all parts of a plant root system, a conveying assembly used for conveying irrigation water for the accurate irrigation assembly, and a temperature control assembly used for adjusting the water temperature of the irrigation water; the precise irrigation assembly comprises a water storage part provided with a valve and a flow dividing part, the flow dividing part is inserted into soil around a plant root system, through holes are formed in the side face of the flow dividing part, and the flow dividing part is connected with the valve on the water storage part; the flow dividing parts comprise the first flow dividing part and the second flow dividing part, the first flow dividing part waters shallow soil, and the second flow dividing part supplies water to deep soil. According to the method, a more accurate irrigation mode is adopted, weather forecast and multiple parameters are jointly analyzed to accurately adjust the greenhouse, the control effect is optimized, and energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention relates to the field of greenhouses, in particular to an intelligent greenhouse control system and a control method. Background technique [0002] With the improvement of people's living standards, people's demand for agricultural and sideline products is also increasing, and due to the poor endowment of agricultural resources in my country, the planting area of ​​greenhouses needs to be expanded accordingly. However, most of the existing greenhouses use manual control to adjust various parameters in the greenhouse, and the degree of automation is not high enough. [0003] Prior art 1, Chinese invention patent, publication number CN210445075U, publication date 20200505, discloses an IoT-based agricultural intelligent greenhouse monitoring system for automatic monitoring and control of parameters in the greenhouse. [0004] However, there are still problems in the prior art 1. The monitoring system in the prior art 1 passively controls ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20
CPCG05D23/20Y02P60/14Y02A40/25
Inventor 张岩曾鹏侯扶江
Owner LANZHOU UNIVERSITY
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