3D Conduction Net for X-Ray Undetectable Penetration Protection

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Solution Overview

Problem

Conventional protection systems fail to detect unauthorized access when layers are split without damaging trip wires, and intruders can evade detection using x-ray imaging by tracing the topology of conduction layers.

Innovation Solution

A three-dimensional net with arbitrary shape formed by conduction layers and connection elements, where insulation layers are dielectric and light-proof, making it impossible to track or split without damaging the layers, and a detection circuit measures resistance changes to detect penetration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional conduction layers with regular topology are used, then the detection circuit can measure resistance changes, but intruders can detect the topology using x-ray and avoid touching the connection lines

Engineering Contradiction:
Improvedetection capabilityVSAvoidx-ray detectability
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies asymmetry by using irregular, non-uniform connection line patterns in the conduction layers. Instead of regular grid patterns that are easy to trace with x-ray, the connection lines are arranged in asymmetric, random-looking paths that make it difficult for intruders to predict and avoid them while maintaining electrical connectivity for resistance measurement

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent transitions from two-dimensional planar patterns to three-dimensional layered structures. Multiple conduction layers are stacked with connection elements vertically connecting them, creating a 3D network that is much harder to trace with conventional x-ray imaging while preserving the electrical measurement function

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If trip wires are placed on shield layers, then unauthorized access can be detected through short circuit or open circuit situations, but layers can be split without harming the trip wires

Engineering Contradiction:
Improvetamper detectionVSAvoidlayer splitting vulnerability
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent divides the conduction path into multiple segments across different layers, connected by discrete connection elements. This segmentation means that splitting any single layer will necessarily interrupt at least one connection element or conduction path, making tamper detection possible while maintaining system functionality

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent embeds multiple conduction layers within each other, with connection elements penetrating through intermediate insulation layers to connect adjacent conduction layers. This nested structure ensures that any attempt to split or separate layers will damage the embedded connection elements, triggering detection

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If continuous connection lines are used on top and bottom layers, then electrical connectivity is maintained, but the topology becomes traceable and predictable

Engineering Contradiction:
Improveelectrical connectivityVSAvoidtopology predictability
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces straight, linear connection lines with curved, serpentine, or circular paths. These curved trajectories increase the path length and complexity without adding straight-line predictability, making it harder for intruders to trace the connection topology while maintaining continuous electrical connectivity for resistance measurement

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 effectively prevents unauthorized access and layer splitting by rendering the net undetectable via x-ray imaging, ensuring secure detection of physical penetration attempts.

Implementation Method 1

a detection circuit that measures the resistance of said conduction layer

Methodology Applied
Scientific EffectElectrical Resistance: Electrical Resistance

Implementation Method 2

an electromagnetic shield layer

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentEP3574721B1An electronic sensitive zone protection system
Publication Date: 2021.04.07 ASELSAN ELEKTRONIK SANAYI & TICARET ANONIM SIRKETI
  • EP3574721B1 patent drawingFigure 1
  • EP3574721B1 patent drawingFigure 2
  • EP3574721B1 patent drawingFigure 3~5

AI summary

With present invention, a protection system (S) for detecting physical penetration, is provided. Said protection system (S) comprises at least one electrical net (1) and at least one detection circuit (2) that is connected to the electrical net (1). Said electrical net (1) comprises; at least two conduction layers (4), each having horizontal and/or vertical connection lines (8) that are electrically conductive, wherein said detection circuit (2) is connected to at least two connection lines (8) through their tips (9) of said conduction layers (4); at least one insulation layer (3) that are located between said conduction layers (4), wherein said insulation layer (3) is dielectric and light proof; at least three connection elements (5) that electrically connect said conduction layers (4) through said horizontal and/or vertical connection lines (8) of different conduction layers (4).