A method for obtaining two-dimensional joint regulation target region based on regulation benefit priority

Abstract

The invention relates to a two-dimensional combined regulation target area acquisition method based on the priority of regulation benefit, which comprises steps: temperature, carbon dioxide concentration and light intensity are taken as inputs and photosynthetic rate is taken as outputs, and SVR is adopted to construct a photosynthetic rate prediction model; using photosynthetic rate at differenttemperatures as objective function, carbon dioxide is extracted at different temperatures; a Photosynthetic Surface of a Light Intensity and Discrete Curve Cluster of Spatial Response with Physiological Significance is obtained; using a U-string length curvature-mountain climbing method, a suboptimal photosynthetic surface of carbon dioxide light intensity is obtained that maps to the part of theconcentration illumination intensity coordinate plane of carbon dioxide, the part of the is the two-dimensional joint control target region, namely the two-dimensional coupling constraint condition; compared with the traditional method which takes the maximum point of photosynthetic rate as the control target, Photosynthetic rate is decreased only by 10.69%, but average light demand is decreased by 38.24%, average carbon dioxide concentration is decreased by 12.10%, which has guiding significance for the actual two-factor regulation of facilities and 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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