A Greenhouse Temperature Field Distribution Simulation Method Introduced in Situ by Three-Dimensional Plant Structure Model

Abstract

The invention discloses a greenhouse temperature field distribution simulation method for in-situ introduction of a plant three-dimensional structure model. The method comprises the following steps: S1, collecting greenhouse positioning information and establishing a greenhouse coordinate system; s2, collecting plant coordinate origin positioning information and establishing a plant coordinate system; s3, unifying a plant coordinate system and a greenhouse coordinate system; s4, collecting plant three-dimensional point cloud data; s5, plant three-dimensional space coordinate transformation andthree-dimensional model construction; and S6, completing distribution simulation of the temperature field. The invention discloses a greenhouse temperature field distribution simulation method for in-situ introduction of a plant three-dimensional structure model. The plant three-dimensional structure model is introduced into greenhouse temperature field distribution simulation based on a fluid mechanics method, and the temperature value of the surface of each blade can be calculated, so that the accuracy of a temperature field distribution simulation result in a greenhouse three-dimensional scene is improved.

Description

technical field [0001] The invention relates to the field of greenhouse planting, in particular to a method for simulating the temperature field distribution of a greenhouse by introducing a three-dimensional structure model of plants in situ. Background technique [0002] Among the environmental factors in the greenhouse, temperature is the main factor affecting the growth and development process. It can affect the rate of leaf formation by controlling the differentiation of the shoot apical meristem, thereby determining the number of organs and the growth process. At the same time, it also directly affects the photosynthesis and respiration of the canopy, and further affects the accumulation of dry matter and the formation of yield. Therefore, the temperature field distribution simulation in the facility environment has always been an important content in the study of the facility environment. [0003] Accurate 3D model construction is an important basis for temperature ...

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Problems solved by technology

However, when applying this method to the study of the temperature field distribution in the greenhouse, since the original method is applied to construction, industry, etc., there is currently no method for constructing a three-dimensional model of the plant structure inside the greenhouse. In the field distribution, most plants are ignored, and only the greenhouse scene without plant growth is simulated, or the three-dimensional structure of the plant canopy is not considered, and the plant canopy is only regarded as a uniform cuboid medium, completely ignoring the occlusion of the plant organs to the air flow and disturbance

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