Luggage Detector Using Induction and Microwave Scanning
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Solution Overview
Problem
Existing detection systems for unauthorized objects in access zones, such as luggage, face reliability and throughput issues, and often use ionizing radiation, which poses health risks, especially for children and pregnant women, and require operator intervention and high maintenance.
Innovation Solution
A trolley-based system with a cavity that fully encloses luggage, equipped with contactless examination means using induction, microwave, and mass-measuring technologies, allowing for automatic scanning without mechanical contact or ionizing radiation, and integrated with a metal detector for body scanning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If X-ray systems are used for inspection of pieces of luggage, then radio-opaque masses can be displayed, but ionizing radiation is used which poses health risks and maintenance costs are high
Solution Approach 1:
The patent replaces X-ray ionizing radiation detection with a mechanical scanning system using contactless examination means (metal detectors, microwave scanners, cameras) mounted on a movable trolley. This substitution eliminates health risks from ionizing radiation while maintaining detection capability through multiple non-ionizing sensing technologies working in coordination.
Solution Approach 2:
The system changes the detection parameter from ionizing radiation (X-rays) to non-ionizing electromagnetic waves (microwaves, radio frequencies) and visual imaging. This parameter change maintains the ability to detect illicit objects while removing the harmful ionizing radiation effect that poses health risks.
2Measurement precision
If X-ray scanners are used for checking pieces of luggage, then inspection can be performed, but operator intervention is required which reduces throughput
Solution Approach 1:
The system implements self-service through automatic analysis means that process images and data from multiple sensors (metal detectors, microwave scanners, cameras) without requiring operator intervention. The automated image processing and object recognition algorithms enable the system to independently identify illicit objects, eliminating the bottleneck of manual verification and significantly increasing throughput while maintaining inspection accuracy.
Solution Approach 2:
The system incorporates feedback loops where detection data from various sensors is continuously fed into analysis means that automatically interpret results and adjust scanning parameters. This closed-loop feedback system enables real-time automatic detection and reduces reliance on operator intervention, thereby improving throughput while maintaining high inspection accuracy through iterative optimization.
3Measurement precision
If examination means are placed inside the cavity to fully enclose luggage, then complete examination is achieved, but device complexity increases
Solution Approach 1:
The examination system is segmented into multiple independent sensor modules (metal detector windings, microwave transmitters/receivers, cameras) distributed around the cavity. Each module performs a specific detection function, and their results are integrated by the analysis means. This segmentation allows complete examination coverage while keeping individual components relatively simple and manageable.
Solution Approach 2:
The trolley-based examination system is designed as a multi-functional platform that integrates multiple detection technologies (metal detection, microwave scanning, visual imaging) into a single unified system. The analysis means processes data from all sensors universally, enabling one system to perform comprehensive examination of various types of illicit objects (metallic, non-metallic, organic, inorganic) without requiring separate specialized devices.
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
Enhances the reliability and safety of luggage screening, improves throughput by eliminating the need for operator intervention, reduces health risks, and lowers maintenance costs while ensuring complete and intact luggage examination.
Implementation Method 1
metal-detecting means by induction, placed in the large vertical sides of the housing or cavity
Implementation Method 2
detector means using microwaves adapted for identifying materials contained in the examined luggage, especially explosives
Implementation Method 3
mass-measuring means of the luggage
Data Source
AI summary
The present invention relates to a system for detecting illicit objects contained in a piece of luggage, characterized in that it comprises a carriage defining a housing (60) for receiving a piece of luggage and examination means (100, 200, 300) placed at the inlet of the housing (60) such that the introduction of the piece of luggage into the housing (60) induces a relative displacement between the piece of luggage and at least one of the examination means (200) and thus an automatic scanning of the piece of luggage by the examination means (200).