Greenhouse intelligent drip-irrigation device

Abstract

The invention relates to a greenhouse intelligent drip irrigation device, which is characterized by comprising a hardware part and a software part; wherein, the hardware comprises six parts of modular design which are a back washing filter mechanism, a material liquid supplying mechanism, a material liquid mixing mechanism, a nutrition liquid drip irrigation mechanism, an electronic control mechanism and a nutrition liquid detection device; wherein, the back washing filter mechanism comprises a back washing device as well as a valve and a pressure sensor which are externally connected; the material liquid supplying mechanism comprises a mother liquor A1 supplying branch, a mother liquor B1 supplying branch and an acid/alkali liquid supplying branch which are connected in parallel; the material liquid mixing mechanism comprises a liquid storage tank as well as an upper cover and a stirring pump matched with the liquid storage tank; the electronic control mechanism comprises two control branches of a pump and a solenoid pilot actuated valve which are controlled by an industrial computer; the software part comprises the procedures of nutrition liquid detection and control; and the control procedure comprises a main procedure, four sub-procedures and a knowledge base.

Description

technical field [0001] The invention relates to agricultural drip irrigation technology, in particular to a greenhouse intelligent drip irrigation device using fuzzy control technology, which can be widely used in soilless cultivation of greenhouse crops and nutrient solution drip irrigation of controllable agriculture. Background technique [0002] Greenhouse soilless cultivation has been widely promoted in my country because of its advantages of being less affected by the external environment, controllable indoor temperature, and suitable for crop growth. Greenhouse crops have made great contributions to enriching the food baskets of ordinary people. The preparation of nutrient solution and drip irrigation technology in greenhouse soilless cultivation technology are important components, which have a very important impact on improving the benefits of facility agriculture. However, due to the limitations of human factors, technology and equipment, greenhouse soilless culti...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: the control accuracy of nutrient solution concentration and pH value is low, the system itself has no backwashing system, and it cannot be removed by itself when impurities are precipitated during the drip irrigation process, and there is no expert decision-making system, and intelligent operation cannot be realized. Its application is limited

The disadvantage of this system is that the sedimentation tank is used to occupy the site, which increases the land requirements or restrictions, and further increases the cost. At the same time, the system uses PI to adjust the concentration and pH value of the nutrient solution, the preparation accuracy is low, and there is no knowledge base, so it cannot realize intelligent operation.

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