Seed Testing Instrument

I. Product Overview

The intelligent seed-analysis system consists of three parts: a 16-megapixel high-speed camera, a backlight device and a tablet with embedded software. The backlight device uses high-brightness LED lamps with an aluminum-alloy frame. The software applies advanced image-processing technology, comprehensively designed based on distance-transform, morphology and convex-hull detection. The device is mainly used in agriculture for field crop yield estimation and seed analysis. Through photos taken by the camera, the software automatically calculates seed count, and the area, perimeter, length, width and length-width ratio of seeds, and automatically computes the 1,000-grain weight from the weight measured by a balance and the seed count; results are output as lists and graphs for easy viewing and analysis. The product also allows manual correction of seed count to ensure counting accuracy, data saving, data-report viewing, and final export of data in Excel format, or uploading via Wi-Fi to the instrument's cloud data-management system for intelligent statistics and analysis.

II. Applications

The intelligent seed-analysis system can measure the count, 1,000-/100-grain weight and average grain shape (including length, width, length-width ratio, perimeter and area) of various smooth-surface grains, using image OCR recognition, image localization and spatial transformation technologies to quickly identify seed count and crop trait indicators.

III. Key Features

1. The Android system offers simplified operation, humanized, intelligent and upgradable advantages.

2. Imaging: a 16-megapixel autofocus HD color camera and an ultra-thin backlight source plate, with automatic correction of camera distortion and backlight uniformity, effectively reducing size-measurement error. Analyzable seed diameter 0.5~20 mm. Rice solid and shriveled grains must be winnowed and counted separately to obtain the seed-setting rate of rice.

3. Counting accuracy vs. target size: 1~2000 grains/time, counting error ≤ ±0.2%; results are accurate with minimal monitoring correction. 1,000-grain-weight analysis accuracy error: ≤ ±1 mg.

4. Automatically measures average grain-shape parameters of various seeds (average length, average width, average length-width ratio, average area, average perimeter).

5. Has tested-sample records; sample-weight input automatically computes 1,000-grain weight. The analysis is automatically controlled by the tablet — efficient, accurate, easy to use, one-key counting analysis and 1,000-grain-weight measurement.

6. Analysis-data export: analysis images can be saved, an automatic total report is formed, and statistical results can be output to Excel.

7. The seed-analysis system is supported by a cloud platform; data can be uploaded, historical data can be retrieved by any time period and seed category, and measurement time, seed count, 1,000-grain weight, average area, average perimeter, average length, average width and seed-image thumbnails can be viewed; different parameters can be analyzed as bar charts, exported to Excel, printed online, and displayed by selected time period as tables or bar charts.

8. Backlight device: high-brightness LED lamps driven by power make the backlight clear under the action of a nano light-guide plate and reflective material, with no shadow on the seeds; aluminum-alloy frame, beautiful, sturdy and non-deformable.

9. Built-in Chinese/English bilingual display with one-key switching and seamless integration.

10. Auto-update: the software has an online auto-update function; every time the system is entered it automatically checks for a new version, and the user can choose to update or update later.

IV. Counting Parameters