Intelligent water and fertilizer regulation and control device and method based on PID (Proportion Integration Differentiation) algorithm
A control device, water and fertilizer technology, applied in the direction of fertilization device, liquid fertilizer pressurized spreading method, injection device, etc., can solve the problems of low fertilization efficiency, lack of scientific theoretical support for fertilizer ratio, and long time-consuming, etc., to avoid flow Ratio and fertilization ratio mismatch, avoid crop quality differences, and prevent uneven effects of water and fertilizer
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Embodiment 1
[0030] see figure 1 , is a schematic structural diagram of the intelligent water and fertilizer control device based on the PID algorithm of the present invention. Such as figure 1 As shown, in the intelligent water and fertilizer control device based on the PID algorithm provided in the first embodiment of the present invention, at least include, through the electrical connection data acquisition unit, data transmission unit, water and fertilizer application control unit and water and fertilizer integrated machine unit; wherein, the The data acquisition unit is used to collect the water and fertilizer flow data of the main pipeline and the branch pipeline, and transmits the collected water and fertilizer flow data to the water and fertilizer application control unit at predetermined time intervals through the data transmission unit; the water and fertilizer application control unit uses storing and processing the water and fertilizer flow data, constructing a water and ferti...
Embodiment 2
[0041] figure 2 It is a flowchart of an intelligent water and fertilizer control method based on a PID algorithm in the present invention. This embodiment is implemented on the intelligent water and fertilizer control device based on the PID algorithm in the first embodiment. A PID algorithm-based intelligent water and fertilizer control method, comprising steps:
[0042] S1. Set control strategy constraints parameters, and check the operation status of multiple sensors and solenoid valves of the data acquisition unit.
[0043] Control strategy constraint parameters include water and fertilizer pressure, nutrient solution dosage, delivery time, nutrient solution EC value and priority of the mother liquid tank, nutrient solution dosage, delivery time, nutrient solution EC value and priority of each numbered mixing tank class. Wherein, the priority refers to selecting one of the dosage of the nutrient solution and the duration of dosage, and stopping the application of water...
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