Optical Fiber Tampering Detection Shield
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Solution Overview
Problem
Counterfeit products, such as electronic systems, mechanical parts, medicines, and cosmetics, pose significant risks due to their potential to malfunction or cause health hazards, and existing methods fail to effectively detect tampering or substitution without visual signs.
Innovation Solution
An optical shield utilizing an optical fiber arranged to detect tampering by measuring changes in its optical signature, which is unique to each arrangement, allowing for sensitive detection of bends, fractures, and other physical properties to identify unauthorized access or substitution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sealing methods (plastic wrapper) are used, then the product is protected and easy to manufacture, but tampering cannot be detected without visual signs
Solution Approach 1:
The patent replaces conventional mechanical sealing methods (plastic wrappers) with an optical fiber-based sensing system. The optical fiber detects tampering through changes in its optical properties (bending, stretching, breaking) rather than relying on mechanical seal integrity, enabling detection of tampering without visual signs while maintaining manufacturing simplicity
Solution Approach 2:
The optical fiber acts as an intermediary element between the sealed product and the detection system. It is embedded within or attached to the sealing structure, translating physical tampering actions into detectable optical signal changes, thereby providing reliable tampering detection while keeping the sealing structure relatively simple
2Measurement precision
If the optical fiber arrangement is made highly sensitive to detect all tampering, then detection precision improves, but the device complexity increases
Solution Approach 1:
The patent applies different optical fiber configurations to different locations on the product based on where tampering is most likely to occur. High-sensitivity arrangements are placed at critical sealing points, while simpler arrangements are used in less critical areas, optimizing detection precision without uniformly increasing complexity across the entire device
Solution Approach 2:
The patent implements optical fiber arrangements that provide slightly more sensitivity than strictly necessary for basic detection. This excessive sensitivity ensures that even subtle or sophisticated tampering attempts are detected, while the added complexity remains manageable through efficient optical signal processing
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 optical shield effectively detects tampering by comparing initial and subsequent optical signature measurements, providing a reliable indicator of product integrity and preventing life-threatening consequences.
Implementation Method 1
an optical fiber arranged to detect tampering with an object resulting from a change in the optical fiber arrangement
Implementation Method 2
measuring an optical signature of the optical fiber arrangement in a first measurement, measuring the optical signature of the optical fiber arrangement at a time after the first measurement in a second measurement
Data Source
AI summary
A system and method for detecting tampering are disclosed. In one aspect, the system includes an optical fiber with a first end and a second end, the optical fiber conformed to an object. The object includes a container having multiple parts that physically alter the optical fiber when the container or at least one of the multiple parts is tampered with. The system also includes a detachable light source configured to emit a light pulse, the optical fiber configured to receive the light pulse at the first end and emit an optical signature at the second end. The system further includes a detachable optical spectral analyzer configured to capture a current optical signature from the second end, the optical spectral analyzer in communication with a data store.