Irrigation control system suitable for greenhouse single crop

A control system and crop technology, applied in the direction of greenhouse cultivation, application, climate change adaptation, etc., can solve problems such as difficult to achieve water-saving irrigation, achieve good application and promotion prospects, obvious effects, reasonable and feasible design

Inactive Publication Date: 2015-11-18
HUAZHONG AGRI UNIV
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At home and abroad, research on water-saving irrigation for substrate cultivation and development of water-saving irrigation systems for facility substrate cultivation have begun, but so far, although the corresponding research has made some research progress, it is still in the stage of experimental research, and it is difficult to realize real substrate cultivation. There is still a considerable distance from practical application of water-saving irrigation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Irrigation control system suitable for greenhouse single crop
  • Irrigation control system suitable for greenhouse single crop
  • Irrigation control system suitable for greenhouse single crop

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Depend on figure 1 As shown, the applicant has designed an irrigation control system suitable for single crops in greenhouses, which includes a control center (100), a Zigbee networking module (200), a detection module (300) and an irrigation module (400);

[0062] The control center (100), the Zigbee networking module (200), and the detection module (300) are connected in sequence;

[0063] The control center (100), the Zigbee networking module (200), and the irrigation module (400) are connected in sequence;

[0064] The control center (100) includes a host computer (110) and a power supply (120);

[0065] The upper computer (110) is electrically connected to the power supply (120).

[0066] The power supply (120) provides power for the matrix moisture sensor (310), the air temperature sensor (320), the light sensor (330), the air humidity sensor (340) and the solenoid valve (410), respectively, and the upper computer (110) and the gateway ( 210) can be directly c...

Embodiment 2

[0079] The applicant utilizes the system described in embodiment 1 to set up a kind of method based on the irrigation control of the irrigation control system of greenhouse single plant crop, and the specific steps of the inventive method are as follows:

[0080] ①Select the type of cultivation substrate and determine the volume ratio of various substrates;

[0081] The selected matrix is ​​vinegar grains, vermiculite and perlite in a volume ratio of 2:1:1.

[0082] ②Using dimensionless analysis method, using different drip irrigation flow rates, different water supply time and different buried depths of the wetting body to establish the characteristic model of the wetting body, and on this basis to establish the profile of the wetting body model and wetted volume model;

[0083] The calculation formula is as follows:

[0084] W = A 1 ( q t ) ...

Embodiment 3

[0146] The application example of embodiment 3 system (taking the automatic irrigation matrix cultivation lettuce as example in the greenhouse)

[0147] This system uses visual studio as the interface program development tool of the upper computer, uses c# language programming under .net, and uses sqlserver as the background database.

[0148] (1) Test material

[0149] The substrate is selected as a composite substrate (vinegar grains: vermiculite: perlite by volume ratio = 2:1:1), and the selected crop is lettuce.

[0150] (2) System control model

[0151] Saturated hydraulic conductivity K S =0.047cm / s, set the drip arrow flow q=0.15L / h, q=0.35L / h, q=0.5L / h; set the initial moisture content of the compound matrix θ=0.18cm 3 cm -3 , θ=0.23cm 3 cm -3 , θ=0.29cm 3 cm -3 ;Set the irrigation time t=5min, t=10min, t=20min, t=30min, t=40min, t=50min and t=60min; set the dripping arrow embedding depth z=3cm; The water content and the experimental data under different drip ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an irrigation control system suitable for a greenhouse single crop. Hardware of the system comprises a control center, a Zigbee networking module, a detection module and an irrigation module, wherein the control center, the Zigbee networking module and the detection module are connected in sequence; and the control center, the Zigbee networking module and the irrigation module are connected in sequence. The whole irrigation control system is simple in structure, low in power consumption, short in time delay, large in network capacity and safe and reliable. The ZigBee technology is combined with a substrate moisture sensor, an illumination sensor, a temperature and humidity sensor, a greenhouse substrate cultured single crop root system dynamic growth model and a substrate moisture body dynamic change model, and mutual matching of a substrate moisture body and a crop root system is realized, so that, under the precondition of not influencing yield and quality of the crop, dynamic and real-time performances of greenhouse substrate cultured single crop moisture forecast are improved, water-saving irrigation is realized truly, and the system plays an important practical significance for realizing water-saving greenhouse single crop substrate culture.

Description

technical field [0001] The invention belongs to the technical field of agricultural facility cultivation, and in particular relates to an irrigation control system suitable for single crops in greenhouses. Relevant to the field of agricultural engineering. Background technique [0002] At present, the area of ​​my country's facility soilless cultivation is increasing year by year and is still in a strong momentum of vigorous development, especially the area of ​​facility organic substrate cultivation of vegetables accounts for more than 85% of the country's total area of ​​soilless cultivation, in order to produce vegetables that are in high demand and not resistant to storage Mainly. Vegetables require a lot of water, and the cultivation substrate has different water retention and water migration characteristics from soil. Therefore, how to realize the automation of vegetable irrigation in facility substrate cultivation, and how to optimize the irrigation amount according t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/16A01G25/00A01G9/24
CPCA01G9/247A01G25/00A01G25/16A01G25/167Y02A40/22Y02A40/25
Inventor 刘志刚袁巧霞
Owner HUAZHONG AGRI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap