Method for embedding heating pipeline near root area of fruit tree

Abstract

The invention discloses a method for embedding a heating pipeline near a root area of a fruit tree. The method comprises the following steps: acquiring the distribution condition of heating temperature fields of the fruit tree root zone under different heating pipeline burying schemes based on computational fluid dynamics simulation, and recording the temperature value of each monitoring point of the fruit tree root zone; and then, carrying out parameter optimization through firefly algorithm iteration, achieving position updating of firefly individuals in each iteration process, and enabling the positions where the firefly individuals are located to represent the distance and depth parameters of heating pipeline burying. For a group of new burying spacing and burying depth parameters, the KNN machine learning model is called to output a corresponding monitoring point temperature value, and then the firefly algorithm is returned to judge whether the monitoring point temperature meets a constraint condition or not; and by taking the distribution uniformity of the heating temperature field of the root zone of the fruit tree as a target, the burying distance and burying depth parameters of the heating pipeline are optimized, and a numerical basis is provided for burying the heating pipeline.

Description

technical field [0001] The invention relates to the field of soil heating in the root zone of fruit trees in greenhouses, and is suitable for the design of the embedment scheme of heating pipes near the root zone of fruit trees. Background technique [0002] Temperature is a crucial factor for the normal growth of fruit trees, especially in winter when the outdoor temperature drops sharply at night. In order to ensure that the fruit trees are not damaged by freezing, the greenhouse needs to be heated at night in winter. The common heating method is to heat the air in the greenhouse. However, during the heating process, the air is heated and buoyantly gathers on the top of the greenhouse, which does not have a good heating effect on the fruit trees planted in the greenhouse. Once the heating equipment stops working, the air temperature in the greenhouse will drop rapidly. The soil temperature in the root zone of fruit trees affects the solubility of various nutrients such as...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems that the existing heating pipe laying method relies on experience, lacks accurate data basis, and does not consider the structure of the root zone of fruit trees, the present invention provides a heating pipe laying method based on flow field analysis and parameter optimization

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