GA-C115 Plant Canopy Analyzer

描述

GA-C115 Plant Canopy Analyzer

我. 应用领域

The plant canopy image analyzer extracts canopy porosity from multiple angles using various image processing techniques. It employs a camera equipped with a fisheye lens to capture canopy images from below, and uses the porosity parameter to deduce various canopy parameters. This provides a reliable scientific basis for rational fertilization in gardens and efficient management in modern farms, and is widely used in scientific research and production guidance in agriculture, forestry, and botany.

GA-C115 Plant Canopy Analyzer

二. Testing Principles and Methods

The plant canopy image analyzer utilizes the principle that canopy porosity is related to canopy structure. Based on Beer’s Law (light attenuation through a medium), and under a series of assumptions about the plant canopy, it uses a semi-theoretical, semi-empirical formula to calculate canopy structure parameters by measuring canopy porosity. This is the principle universally used by various canopy analyzers worldwide. Under this principle, the plant canopy image analyzer measures canopy porosity by analyzing images of the lower dome hemisphere of the canopy. This method is the most accurate, labor-saving, time-saving, and convenient among various methods.

GA-C115 Plant Canopy Analyzer

III. Structural Composition

The plant canopy image analyzer consists of a fisheye image capture probe (comprising a fisheye lens and a CMOS image sensor), a measuring rod (rocker arm) 和 25 built-in PAR sensors, a laptop computer, and image analysis software. The fisheye probe is mounted on the top of a lightweight rocker arm, enabling it to acquire fisheye images with a 180° field of view. Image display and storage are handled by the configured laptop computer.

GA-C115 Plant Canopy Analyzer

IV. Technical Specifications

1. Measurable Indicators:
Leaf Area Index
Average Leaf Angle
Clustering Index 1
Clustering Index 2
Canopy Openness
Sky Scattered Light Transmittance
Direct Radiation Transmittance of Plant Canopy at Different Solar Altitude Angles (Gap Ratio + 透过率)
Extinction Coefficient of Canopy at Different Solar Altitude Angles
Azimuthal Distribution of Leaf Area Density (Opacity)
Photosynthetically Active Radiation (PAR)
2. Lens Angle: 180°
3. 解决: 2592 × 1944
4. 测量范围: The zenith angle can be divided into ten regions from 0° to 90° (180° fisheye lens), and the azimuth angle of 360° can also be divided into ten regions.
5. PAR Sensing Range: Sensing spectrum 400nm～700nm
6. 测量范围: 0～3000μmol/㎡•S
7. Analysis Software: Plant Canopy Analysis System
8. 重量: 500G
9. Operating and Storage Environment: -10℃~55℃, ≤85% Relative Humidity
10. Transmission Interface: USB

GA-C115 Plant Canopy Analyzer

V. Functional Features

1. Automatically Leveling Fisheye Lens: The small fisheye camera lens, specially designed for measuring plant canopy structure, is mounted on a handheld universal joint and automatically maintains a level position, eliminating the need for a tripod.
2. Fisheye Lens Can Extend into the Canopy: The lens is mounted on one end of a rocker arm. Due to its compact size and the included measuring rod, it can be easily extended horizontally forward or vertically upward into different heights of the canopy for rapid stratified measurements, determining the vertical distribution of light transmittance and leaf area index within the canopy.
3. Image Analysis Software: The image analysis software allows for arbitrary definition of image analysis areas (zenith angle can be divided into 10 区域, azimuth angle into 10 区域).
4. Can Shield Unreasonable Canopy Sections: When performing regional analysis of the canopy in different directions, ground features and unreasonable canopy sections (such as missing plants, edge row problems, ETC。) can be arbitrarily shielded. 5. Automated threshold adjustment avoids increased errors caused by subjective threshold settings.
6. Real-time display of GPS satellite positioning latitude and longitude, clearly indicating the current detection location.
7. Detection results can be directly transmitted to a dedicated cloud agricultural data center, equipped with a dedicated cloud agricultural data center account.
8. Data browsing: Historical data can be viewed.
9. Built-in bilingual display in Chinese and English, one-click switching.
10. Configuration list: 180° fisheye probe, measuring rod, laptop (with built-in analysis software), laptop bag, 加密狗, aluminum case, instruction manual, certificate of conformity.