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An automatic control system and method for rain collection and irrigation in greenhouses

An automatic control system and greenhouse technology, applied in greenhouse cultivation, general water supply conservation, botany equipment and methods, etc., can solve problems such as backward production methods, waste of fertilizers and pesticide residues, etc., and achieve easy automatic control and work stable effect

Active Publication Date: 2019-08-13
INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of water source in dry farming greenhouse cultivation, firstly, it leads to limited crop varieties and backward production methods; secondly, it is difficult to improve product quality and yield, and the production efficiency is not high; thirdly, the applied chemical fertilizers and pesticides cannot directly penetrate into the root system quickly, causing pesticide Fertilizer waste and phytotoxicity residue

Method used

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  • An automatic control system and method for rain collection and irrigation in greenhouses
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  • An automatic control system and method for rain collection and irrigation in greenhouses

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Embodiment 1

[0024] Embodiment 1. An automatic control system for rain collection and irrigation in greenhouses.

[0025]Referring to the accompanying drawings, the automatic control system of the present invention includes a greenhouse rain collection system, a pipeline system and an irrigation-saving automatic control system.

[0026] 1. Greenhouse rain collection system. The system includes a rain collecting surface 11 located on the outer periphery of the top of the greenhouse 1, a confluence trough 12 arranged at the lower end of the rain collecting surface 11 and a rain collecting pond 14 arranged underground, and the rain collecting pond 14 is connected to the confluence groove 12 through a water guide pipe 13; In the greenhouse rain collection system, the rain collection surface 11 is the impermeable inclined membrane surface of the greenhouse. This membrane surface is divided into upper and lower parts by the confluence tank 12, and the lower end of the upper membrane surface is f...

Embodiment 2

[0029] Embodiment 2. Implementation method of automatic control of rain collection and irrigation saving in greenhouses.

[0030] Referring to the accompanying drawings, the implementation method of automatic control of rain collection and irrigation in greenhouses is to use the impermeable and inclined film surface of the greenhouse as the rain collection surface 11 to collect rainwater from natural rainfall and store it in the rain collection pond through the confluence tank 12 In 14, it provides water source for greenhouse irrigation; under the condition of DC power supply, the central intelligent controller provides DC power for the soil moisture sensor and water level sensor respectively through the power output channel, and at the same time receives the soil moisture sensor through two voltage input channels respectively. Two sets of different voltage signals sent back by the water level sensor according to the state of soil humidity and the water level of the rainwater c...

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Abstract

The invention discloses an automatic control system and method for rainwater collecting and water-saving irrigation of a greenhouse. The system comprises a greenhouse rainwater collecting system, a pipeline system and a water-saving irrigation automatic control system. The greenhouse rainwater collecting system comprises a rainwater collecting face located at the top of the greenhouse, confluence grooves formed in the lower end of the rainwater collecting face and a rainwater collecting pool arranged on the ground or underground. The rainwater collecting pool is communicated with the confluence grooves through water guide pipes. The pipeline system comprises a water delivery and distribution pipeline and capillary pipes. The water-saving irrigation automatic control system comprises a direct current power supply, a central intelligent controller, soil moisture sensors arranged in soil, a water level sensor arranged inside the rainwater collecting pool, and a water pump arranged at the bottom end of the rainwater collecting pool. By means of the automatic control system and method for rainwater collecting and water-saving irrigation of the greenhouse, a water resource guarantee is provided for facility agriculture production, a technical means is provided for water-saving irrigation automation, and meanwhile automatic control over different irrigation water quotas is achieved.

Description

technical field [0001] The invention relates to the technical field of rainwater collection and water-saving irrigation. Background technique [0002] The facility agricultural production technology mainly in the form of solar greenhouses and plastic greenhouses provides people with fresh off-season vegetables, fruits, edible fungi and flowers, etc., which is of great significance to improving people's living standards and increasing farmers' income. Due to the lack of water sources, greenhouses in some areas can only adopt the dry farming mode. Due to the lack of water source in dry farming greenhouse cultivation, firstly, it leads to limited crop varieties and backward production methods; secondly, it is difficult to improve product quality and yield, and the production efficiency is not high; thirdly, the applied chemical fertilizers and pesticides cannot directly penetrate into the root system quickly, causing pesticide Fertilizer waste and phytotoxicity residue. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G9/24A01G25/16E03B3/02
CPCA01G9/247A01G25/167E03B3/02Y02A20/108Y02A40/22Y02A40/25
Inventor 曹建生沈彦俊齐永青王贺辉
Owner INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI