A two-dimensional joint regulation target area acquisition method based on regulation benefit priority

Abstract

A two-dimensional joint regulation target area acquisition method based on the priority of regulation benefits, with temperature, carbon dioxide concentration, and light intensity as input and photosynthetic rate as output, using SVR to construct a photosynthetic rate prediction model; taking the photosynthetic rate at different temperatures as the target Function to obtain the photosynthetic surface of carbon dioxide-light intensity at different temperatures and the discrete curve cluster of spatial response with physiological significance; use the U chord length curvature-hill climbing method to obtain the suboptimal photosynthetic surface of carbon dioxide-light intensity, and the photosynthetic suboptimal surface is mapped to carbon dioxide The part on the concentration-light intensity coordinate plane is the two-dimensional joint regulation target area, that is, the two-dimensional coupling constraint condition; The rate only decreased by 10.69%, while the average light demand decreased by 38.24%, and the average carbon dioxide concentration demand decreased by 12.10%, which has guiding significance for the actual two-factor regulation of the facility environment.

Description

technical field [0001] The invention belongs to the technical field of modern agricultural intelligent equipment, and in particular relates to a method for obtaining a two-dimensional joint regulation target area based on regulation benefit priority. Background technique [0002] Facility agriculture is also called controlled agriculture, and its main feature is that it can provide a relatively controllable environment for crop growth. During crop growth, it is mainly affected by air temperature, CO 2 Concentration, light intensity and many other factors. However, traditional environmental factor control methods mostly use threshold values. On the one hand, the target value of threshold control is mostly expert advice or traditional experience, which is easily affected by human subjective factors. effects on crop growth and development. However, the existing multi-factor coupling regulation mode mostly adopts light environment or CO 2 and other single-target regulatory s...

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Problems solved by technology

[0009] In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a method for obtaining a two-dimensional joint regulation target area based on the priority of regulation and control benefits, and to obtain a suboptimal photosynthetic surface based on two-dimensional coupling constraints of discrete curvature, which solves the existing problems The acquisition of the two-dimensional joint regulation target value in the facility environment regulation system lacks the benefits of integrated regulation, which is likely to cause problems such as high regulation costs and low regulation benefits.

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