Virtual plant canopy photosynthesis effective radiation distribution simulating method of multi-layer data structure

A photosynthetically active radiation and data structure technology, applied in the fields of agronomy, forestry, botany, and geology, can solve problems such as PAR simulation calculation acceleration

Active Publication Date: 2016-06-22
FUZHOU UNIV
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no literature related to the use of multi-level data structures to accelerate the calculation of PAR simulation calculat...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Virtual plant canopy photosynthesis effective radiation distribution simulating method of multi-layer data structure
  • Virtual plant canopy photosynthesis effective radiation distribution simulating method of multi-layer data structure
  • Virtual plant canopy photosynthesis effective radiation distribution simulating method of multi-layer data structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0061] The invention provides a method for simulating and accelerating the three-dimensional distribution of photosynthetically active radiation in a virtual plant canopy based on a multi-layer data structure, which comprises the following steps:

[0062] Step S1: Collect typical individual plant structural characteristic parameters and plot survey database, and use virtual plant modeling software to establish a high-fidelity, natural-growing fine 3D model of a single plant. Collect the DEM, TIN and terrain data of the target area, and create a virtual vegetation scene based on the vegetation scene construction software;

[0063] Step S2: According to the geographical location and climatic conditions of the sample plot, use the relevant astronomical parameter calculation algorithm to calculate the canopy radiation intensity at different t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a virtual plant canopy photosynthesis effective radiation distribution simulating method of a multi-layer data structure. The method includes the following steps of establishing a virtual plant model and a virtual plane scene high in fidelity and complexity, collecting plant canopy photosynthesis effective radiation intensity values through a related astronomical parameter method or a field measurement method, sequentially establishing the three-layer data structure with a virtual plane scene single-tree geometrical model, a scene and a terrain through a data structure starting method, establishing a direct solar radiation and sky scattering PAR ray vector plane, sequentially tracing all ray vectors on the ray plane through a Monte Carlo ray tracing algorithm and a turtle shell algorithm, traversing the three-layer data structure with the scene, the single tree and the terrain, judging whether rays intersect with triangular patches or not, counting the sky visible rates of all the triangular patches, and calculating direct solar radiation PAR and sky scattering PAR of all the triangular patches to obtain a virtual plane canopy PAR three-dimensional space distribution simulating result.

Description

technical field [0001] The invention relates to the fields of geology, agronomy, forestry, botany and the like, in particular to a method for simulating the distribution of photosynthetically active radiation in a virtual plant canopy with a multi-layer data structure. Background technique [0002] Photosynthetically active radiation (Photosynthetic Active Radiation, PAR) is the part of the solar radiation spectrum that can be absorbed by green plant chlorophyll and converted into material accumulation. Its radiation wavelength is between 380nm and 710nm, accounting for about 40% of the total solar energy. The PAR from the sun incident on the plant canopy can be divided into direct solar PAR, sky diffuse PAR and leaf multiple scattering PAR, among which direct solar and sky diffuse PAR are the main components of PAR in the canopy. Plant leaves have the characteristics of high absorption, low reflection and transmittance in the PAR band, so the leaves in the plant canopy have...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F17/50
CPCG06F16/29G06F30/367
Inventor 邹杰林伟木麦春娜
Owner FUZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap