CT Scanning Platform for Palletized Cargo
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Solution Overview
Problem
Current cargo screening systems, particularly in aviation security, are inefficient and costly due to limitations in detecting explosives and anomalies within palletized cargo, with conventional X-ray solutions providing limited views and requiring cumbersome and expensive multi-view X-ray and CT approaches.
Innovation Solution
A scanning system utilizing a horizontally-mounted CT platform with a rotating turntable and adjustable scanning platform to capture three-dimensional CT images of palletized cargo, enabling comprehensive anomaly detection and automated threat identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional X-ray solutions are used for cargo screening, then the system structure is simple, but the detection capability is limited and views are restricted
Solution Approach 1:
The patent transitions from conventional 2D X-ray imaging to 3D CT (computed tomography) imaging by rotating the cargo pallet 360 degrees and reconstructing cross-sectional images. This dimensional change enables comprehensive anomaly detection throughout the entire cargo volume, not just surface-level detection, thereby significantly improving measurement precision for threat detection.
Solution Approach 2:
The system employs a rotating turntable that dynamically rotates the cargo pallet during scanning, allowing the X-ray source and detectors to capture images from multiple angles. This dynamic rotation enables the reconstruction of complete 3D images, enhancing detection capability while maintaining manageable system complexity through automated mechanical motion.
2Measurement precision
If multi-view X-ray and CT approaches are used, then anomaly detection capability is improved, but the system becomes cumbersome and costly
Solution Approach 1:
The patent integrates multiple functions into a single unified system: the rotating turntable serves both as a positioning mechanism and an imaging acquisition device, while the X-ray source and detectors perform both conventional imaging and CT reconstruction. This multi-functionality achieves comprehensive threat detection without requiring separate specialized systems, thereby improving detection accuracy while controlling system complexity.
Solution Approach 2:
The system merges conventional X-ray imaging with CT reconstruction technology into a single integrated platform. By combining the X-ray source, detectors, rotating turntable, and image reconstruction algorithms into one cohesive system, the patent achieves enhanced anomaly detection capability without the need for multiple separate systems, thus improving threat detection accuracy while avoiding excessive system complexity.
3Measurement precision
If conventional CT scanning is used, then three-dimensional imaging capability is achieved, but scanning time is excessive and productivity is low
Solution Approach 1:
The patent implements continuous scanning during the rotation of the turntable, with the X-ray source and detectors continuously acquiring data throughout the 360-degree rotation. This continuous data acquisition, combined with real-time or near-real-time image reconstruction, enables complete 3D imaging of cargo pallets in under 110 seconds, significantly improving productivity while maintaining high-quality three-dimensional imaging.
Solution Approach 2:
The system performs preliminary positioning and alignment of the cargo pallet on the rotating turntable before scanning begins. This preliminary preparation ensures optimal positioning and reduces the time required during actual scanning, contributing to the overall reduction of scanning time while maintaining comprehensive 3D imaging quality.
4Extent of automation
If conventional cargo screening methods are used, then operational costs are high, but automated detection capability is limited
Solution Approach 1:
The patent incorporates automated image reconstruction and anomaly detection algorithms that process the scanned data without requiring extensive manual intervention. The system automatically generates 3D images, identifies potential threats, and produces screening reports, thereby enhancing automated detection capability while reducing operational costs associated with manual screening processes.
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
The system efficiently scans pallets in under 110 seconds, achieving high resolution and automated detection of threats like explosives and narcotics, with the ability to process over 20 pallets per hour, thus enhancing aviation security while reducing operational costs.
Implementation Method 1
capture x-ray attenuation data for an object in three dimensions
Implementation Method 2
receive x-ray attenuation data from the detector
Data Source
AI summary
Provided are CT scanning systems and architectures that utilize a unique approach to scanning large objects. Various embodiments of the architecture incorporate a scanning platform and a turntable. The scanning platform may be mounted horizontally. The vertical offset between the scanning platform and the turntable may be changed during a scan. A pallet or other object can be moved into a scanning area under the scanning platform. Both the vertical offset between the scanning platform and the turntable may be changed and the turntable may be rotated during a scan. Scan data may be used to generate a three dimensional image. Additional objects can be quickly positioned (once the vertical offset is adjusted) for subsequent scans allowing for greater throughput than conventional approaches.