Walk-Through Security Scanner Dynamics
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Solution Overview
Problem
Existing security scanning systems require cooperation from individuals, limiting throughput as they need to remain still and turn for comprehensive scanning, which is not practical for high-traffic public spaces.
Innovation Solution
A system utilizing detector panels and a location-tracking device to scan individuals in motion, allowing them to walk through continuous passageways while being scanned from multiple angles, with the ability to perform polarized scans and analyze reflections for accurate imaging, including the use of microwave or millimeter wave transmitters and receivers for enhanced accuracy and speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the person to be scanned has to enter a scanning chamber and hold still during scanning, then the scanning accuracy is improved, but the scanning throughput deteriorates
Solution Approach 1:
The system transitions from a static scanning chamber requiring the person to hold still to a dynamic walk-through gate system where the person moves continuously through the scanning area. The detector panels and location-tracking device work together to capture images at multiple positions along the walk path, maintaining scanning accuracy while enabling continuous motion and significantly improving scanning throughput.
2Measurement precision
If the person to be scanned has to cooperate by turning around, then the comprehensive scanning coverage is improved, but the ease of operation deteriorates
Solution Approach 1:
Instead of requiring the person to rotate in place (one-dimensional turning), the system uses multiple detector panels arranged at different angular positions around the walk path. The location-tracking device determines the person's position, and the system synthesizes images from multiple panels to achieve comprehensive 360-degree coverage, eliminating the need for the person to turn around while maintaining complete scanning coverage.
3Measurement precision
If multiple detector panels are used to scan the form of interest from different positions, then the scanning coverage is improved, but the device complexity increases
Solution Approach 1:
The detector panels are designed with multi-functionality, serving both as transmitters and receivers of electromagnetic radiation. Each panel can operate in different modes (transmitting, receiving, or both simultaneously) depending on the scanning requirements. This universal design reduces the need for separate dedicated transmitter and receiver panels, thereby reducing overall device complexity while maintaining comprehensive scanning coverage.
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 efficient, high-throughput scanning of individuals without their cooperation, ensuring comprehensive coverage and quick, accurate detection of objects on the body, while maintaining security and reducing scanning time.
Implementation Method 1
a first detector panel and a second detector panel, spatially offset from the first detector panel by a first continuous passageway... a first panel-pair and a second panel-pair, each forming a continuous passageway for the motion of the form of interest... receive a reflection from the form of interest
Implementation Method 2
a location-tracking device adapted to monitor the location of the form of interest... The scan can be initiated based upon the location of the person tracked by the location-tracking device
Implementation Method 3
at least one of the panels in each pair comprises an array of microwave or millimeter wave transmitters
Implementation Method 4
at least one of the panels in each pair comprises an array of microwave or millimeter wave transmitters
Data Source
AI summary
A system for scanning a form of interest, while the form of interest is in motion, is provided. The system comprises a first detector panel-pair, comprising a first detector panel and a second detector panel, spatially offset from the first detector panel by a first continuous passageway for the motion of the form of interest. A second detector panel-pair comprises a third detector panel and a fourth detector panel, spatially offset from the third detector panel by a second continuous passageway for the motion of the form of interest, and a location-tracking device adapted to monitor the location of the form of interest.