A water and fertilizer integrated machine based on multi-channel flow control and its flow control method

Abstract

The invention discloses an integrated water and fertilizer machine and a flow control method based on multi-channel flow control. The flow is controlled through digital regulating valves in each water channel, thereby controlling the proportion of fertilizer. Water and multiple water-soluble fertilizers enter the water pump at the same time, are mixed evenly in the water pump, and finally reach the plant roots through the drip irrigation belt. This structure has higher fertilization efficiency and shorter time. Multiple types of fertilizers are applied at the same time, so that the fertilizers are fully mixed and reach the roots of the crops, improving the fertilizer absorption efficiency of the crops. It prevents uneven fertilizers for different plants during the fertilization process and avoids differences in crop quality caused by uneven growth of different plants. The invention adopts an adaptive harmonic ratio control algorithm, which can achieve the unification of flow control speed and following performance. When the main pipeline flow is greatly disturbed, the branch pipeline flow follows quickly, which can effectively avoid the occurrence of flow ratio mismatch.

Description

technical field [0001] The invention belongs to the technical field of agricultural equipment, and in particular relates to a water and fertilizer integrated machine based on multi-channel flow control and a flow control method thereof. Background technique [0002] Water and fertilizer integration technology is a new agricultural technology that integrates irrigation and fertilization. Generally, drip irrigation technology is used to infiltrate the roots of plants with water and water-soluble fertilizer in drops by laying drip irrigation belts. Water-soluble fertilizer is a compound fertilizer that can be quickly and completely dissolved in water. It is easy to be absorbed by crops and has a high utilization rate. It is an ideal fertilizer for realizing integrated water and fertilizer irrigation. The research of water and fertilizer integrated machine is mostly concentrated in the fields of timing control, logic control, switch control and so on. In agricultural production...

AI Technical Summary

Problems solved by technology

[0007] In view of the shortcomings of the existing water and fertilizer integrated machine, such as low fertilization efficiency, inaccurate fertilizer ratio, and few functions, the present invention proposes a water and fertilizer integrated machine based on multi-channel flow control and its flow control based on full closed loop and multi-flow ratio control. method

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