Seed Sorting X-Ray Imaging High Line Scan Rate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional seed imaging processes are unable to perform real-time, high-throughput, and high-quality imaging and classification of seeds' internal morphology for accurate sorting at an industrial scale, limiting the efficiency and accuracy of seed analysis and classification in the agricultural industry.
Innovation Solution
A seed sorting system incorporating an x-ray camera with a high-efficiency, low-energy x-ray TDI camera and a fiber-optic-scintillator configuration, capable of producing high-quality images at high line scan rates, combined with a sorting assembly that uses vacuum nozzles and air valves to sort seeds based on acquired x-ray images, and a training method for building classification models using x-ray images from seeds in a scantray.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional standalone x-ray imaging cabinets are used, then x-ray imaging of seeds is possible, but the process is slow and performed in batch mode offline
Solution Approach 1:
The patent replaces conventional standalone x-ray imaging cabinets with an integrated x-ray imaging system that combines an x-ray tube, collimator, and linear array detector into a unified mechanical structure. This substitution enables continuous scanning mode operation at speeds up to 1000 mm/sec, transforming the imaging process from slow batch mode to high-speed real-time operation while maintaining internal morphology imaging quality
Solution Approach 2:
The imaging system is designed to perform multiple functions: it can operate in both continuous scanning mode for high-throughput applications and stationary imaging mode for detailed analysis. The system also integrates classification and sorting functions, making it a multi-functional platform that handles the entire seed analysis and sorting process in one integrated system
2Productivity
If high line scan rates are used to accommodate high seed movement speed, then throughput increases, but image quality may deteriorate
Solution Approach 1:
The patent employs dynamic synchronization between the seed conveyor speed and the x-ray camera line scan rate. The system continuously adjusts the scanning parameters to match the conveyor speed, ensuring that high scan rates are maintained without compromising image quality. This dynamic adaptation allows the system to operate at speeds up to 1000 mm/sec while producing high-quality images
Solution Approach 2:
The system utilizes a linear array detector with high temporal resolution that can capture images at line scan rates corresponding to conveyor speeds of up to 1000 mm/sec. The detector parameters are optimized to maintain image quality at high scan rates, and the x-ray tube parameters are dynamically adjusted to ensure sufficient photon flux for high-quality imaging even at maximum scan speeds
3Measurement precision
If x-ray tube operates at high power settings for high quality images, then image quality improves, but x-ray tube lifespan decreases
Solution Approach 1:
The patent employs dynamic parameter adjustment of the x-ray tube, varying the power settings based on the specific imaging requirements. The system uses optimized x-ray protocols that adjust tube voltage and current to the minimum necessary levels for achieving diagnostic quality images, thereby reducing overall power consumption and heat generation while maintaining image quality
Solution Approach 2:
The system uses pulsed x-ray operation with optimized exposure timing rather than continuous high-power operation. The x-ray tube is activated only when seeds are in the imaging zone, with exposure duration precisely matched to the transit time. This periodic operation reduces cumulative power stress on the tube, extending its operational lifespan while maintaining image quality through optimized pulse parameters
4Reliability
If automated real-time imaging and classification is implemented, then sorting accuracy improves, but system complexity increases
Solution Approach 1:
The patent integrates multiple functions including x-ray imaging, image processing, classification, and sorting control into a single unified system. The control unit coordinates all subsystems (conveyor, x-ray tube, detector, sorting mechanism) and performs both image acquisition and classification algorithms, eliminating the need for separate standalone systems and reducing overall system complexity despite the advanced capabilities
Solution Approach 2:
The system implements closed-loop feedback control where the control unit continuously monitors imaging quality and sorting performance, automatically adjusting parameters to maintain optimal operation. The classification results feed back to refine the sorting decisions, and system performance data is used to continuously optimize the imaging and classification parameters, improving reliability while managing complexity through intelligent control
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables real-time, high-throughput, and accurate sorting of seeds into different categories based on internal morphology, improving seed classification accuracy and efficiency, and extending the lifespan of x-ray tubes by operating at lower power settings.
Implementation Method 1
an x-ray camera configured to acquire x-ray images of the seeds as the seeds move through the system
Implementation Method 2
A fiber-optic-scintillator is mounted on the fiber optic
Data Source
AI summary
A seed sorting system for sorting seeds includes a seed transfer station configured to move seeds through the system. An imaging assembly includes an x-ray camera configured to acquire x-ray images of the seeds as the seeds move through the system. The x-ray camera is configured to produce high quality images at high line scan rates to accommodate a speed and width at which the seeds are moved by the seed transfer station through the system. A sorting assembly is configured to sort the seeds into separate bins based on the acquired x-ray images of the seeds.