Microwave Security Scanner Panel Arrangement for Detection
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Solution Overview
Problem
Current microwave-based security scanners face challenges in achieving clear detection of objects beneath clothing with minimal measurement time and optimal illumination, often requiring complex and costly systems.
Innovation Solution
A system comprising multiple panels with angled walk-through passages, each equipped with transmitting and receiving antennas, allows for comprehensive scanning by creating a virtual aperture through inter-panel scans, providing complementary views from different angles to enhance detection capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional reflector elements are added to improve illumination, then detection capability is improved, but device complexity and cost increase
Solution Approach 1:
The system is divided into multiple independent panels, each with its own transmitting and receiving antennas. Each panel can be independently configured and optimized, reducing the complexity of managing a single large complex system while achieving comprehensive coverage through the collective arrangement of segmented panels.
Solution Approach 2:
The panels are arranged in a three-dimensional spatial configuration rather than a simple planar arrangement. This spatial distribution creates a virtual aperture that improves detection capability without requiring additional reflector elements, thus avoiding the complexity and cost associated with traditional illumination enhancement methods.
2Productivity
If measurement time is reduced to maintain movement flow, then productivity is improved, but detection precision may deteriorate
Solution Approach 1:
The scanning process operates continuously as persons move through the passage. The system captures microwave reflections continuously during the person's passage rather than requiring stationary positioning, maintaining both high scanning speed and adequate detection precision through continuous data acquisition and processing.
Solution Approach 2:
The system performs preliminary signal processing and evaluation of reflected microwave signals in real-time during the person's passage. By preparing and processing detection data continuously as it arrives, the system achieves rapid detection without sacrificing precision, enabling quick identification of concealed objects.
3Measurement precision
If multiple transmitting and receiving antennas are used to improve detection, then measurement precision is improved, but device complexity increases
Solution Approach 1:
Each panel is designed with both transmitting and receiving capabilities, making the antenna systems multi-functional. This universal design reduces the need for separate dedicated transmitting and receiving antenna arrays, simplifying the overall system architecture while maintaining the ability to perform both transmission and reception functions with the same panel structures.
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
This approach enables efficient and reliable detection of concealed objects with reduced complexity and cost, minimizing measurement time while achieving full illumination of the scanned area.
Implementation Method 1
a microwave signal with a given bandwidth is generated and transmitted from at least one antenna
Implementation Method 2
The microwave signals are reflected from the body and from the concealed objects. The reflections are received by at least one antenna
Data Source
AI summary
The present disclosure relates to systems and methods for scanning objects and persons, for example, persons in security gates, by means of microwave radiation. Such a system includes an arrangement of several panels between which an angled walk-through passage is formed.