Sealing Element Antenna Resonant Frequency Forgery Detection
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Solution Overview
Problem
Conventional methods for securing objects against counterfeiting are ineffective if the sealing element can be detached and reattached without being damaged, allowing for potential forgery.
Innovation Solution
A method and system utilizing an antenna structure with a coupling element that influences oscillating circuit parameters, such as resonant frequency, to create a unique authenticity feature, allowing for non-destructive detection of seal detachment and reattachment by measuring changes in these parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional seal is designed to detect manipulation through destruction or damage, then the seal can provide security against counterfeiting, but the seal becomes ineffective if it can be detached and reattached without damage
Solution Approach 1:
The patent applies parameter changes by measuring the resonant frequency of the antenna structure, which changes when the seal is detached and reattached. The coupling element's position relative to the antenna structure alters the resonant circuit properties, providing a detectable parameter change that indicates manipulation while allowing non-destructive detachment.
2Reliability
If a seal includes a coil that can be damaged to detect manipulation, then security is provided, but the detection method is limited to conductor breaks and cannot detect non-destructive manipulation
Solution Approach 1:
The patent replaces the mechanical detection method (visual inspection of conductor breaks) with an electromagnetic field-based measurement system. By measuring the resonant frequency of the antenna structure, the system can detect manipulation without physical damage to the seal, significantly improving detection sensitivity.
3Ease of manufacture
If the seal is designed to be non-destructive for reuse, then the seal can be detached and reattached, but this creates vulnerability to forgery and repeated manipulation
Solution Approach 1:
The patent implements feedback by measuring the resonant frequency of the antenna structure and comparing it to expected values. This feedback mechanism allows the system to detect whether the seal has been manipulated or forg ed, even though the seal itself remains physically intact and reusable.
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
Effectively prevents counterfeiting by ensuring that any change in the seal's arrangement relative to the coupling element results in a detectable change in the oscillating circuit parameter, thereby verifying the integrity of the seal.
Implementation Method 1
A sealing element with an antenna structure is provided, which can be regarded as an electrical oscillating circuit. At least one coupling element is provided, which is set up to influence a value of an oscillating circuit parameter, for example a quality or a natural resonant frequency, of the oscillating circuit, which is provided by the antenna structure of the sealing element, when the antenna structure is arranged on the object relative to the at least one coupling element
Data Source
Figure 1A~2B
Figure 3A~3C
Figure 4~5
AI summary
In a method for preventing forgery of an object (20), a sealing element (10) with an antenna structure (12), an object (20) to be secured, and at least one coupling element (30) that is or can be arranged on the object are provided (S1, S2, S3). The coupling element (30) is suited for influencing a value of a resonant circuit parameter of the antenna structure when the antenna structure is arranged relative to the coupling element on the object. Finally, the sealing element (10) and the coupling element (30) are arranged on the object (20) in such a way that a relative arrangement of the antenna structure (12) to the coupling element (30) is established on the object (20), by which means the value of the resonant circuit parameter of the antenna structure (12) arranged on the object (20) is defined depending on the established relative arrangement and can function as an authenticity feature of the object. The value of the resonant circuit parameter can then be measured and assigned to the object (20) with the sealing element (10) arranged thereon as an authenticity feature.