Object Marking System Using XRF Spectral Fingerprinting
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Solution Overview
Problem
Current methods for object marking lack effectiveness in preventing counterfeiting and ensuring traceability across various product types, as they fail to provide reliable and secure authentication and brand protection, especially in complex supply chains.
Innovation Solution
A novel marking system that applies a composition of marker materials detectable by electromagnetic signals, such as XRF, to specific areas of objects, using an orientation sensing unit and marking unit to ensure precise application and verification, integrated with a curing unit for adherence, and a reading unit for concentration measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional marking methods are used, then marking can be applied to objects, but the marking lacks reliability for authentication and counterfeit prevention
Solution Approach 1:
The patent changes the chemical composition parameters of the marking material by using specific elemental compositions that produce characteristic X-ray fluorescence spectra. This transforms ordinary marking into a reliable authentication system based on unique spectral fingerprints of elements, resolving the contradiction between reliability and complexity.
Solution Approach 2:
The patent replaces conventional visual or physical marking methods with X-ray fluorescence spectroscopy detection. This substitution enables reliable authentication through electromagnetic interaction with atomic electrons, providing unique spectral signatures that are difficult to replicate, thus improving reliability without proportionally increasing system complexity.
2Measurement precision
If marking composition is applied to ensure secure authentication, then authentication reliability improves, but application precision and verification accuracy require enhancement
Solution Approach 1:
The patent employs periodic excitation of the marking material with X-ray radiation to generate fluorescence signals. This periodic action enables precise measurement of marker concentrations through spectral analysis while maintaining production throughput by allowing rapid sequential measurement of multiple objects.
Solution Approach 2:
The system incorporates feedback through spectral analysis that measures the actual marker composition and concentration on each object. This feedback mechanism verifies marking accuracy and provides real-time information for quality control, improving measurement precision while streamlining the verification process to maintain productivity.
3Object-affected harmful factors
If XRF markers are used for authentication, then counterfeit prevention capability improves, but detection and measurement complexity increases
Solution Approach 1:
The patent uses X-ray fluorescence spectral signatures as unique identifiers for different marking compositions. Each elemental composition produces a characteristic spectral pattern (analogous to color changes in visible light), making it easy to detect and measure while providing strong counterfeit resistance. The spectral fingerprinting approach simplifies detection despite the complexity of the underlying atomic physics.
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 provides secure authentication and traceability by ensuring accurate marking and verification, preventing counterfeiting and ensuring product integrity through precise application and detection of marker compositions, enhancing supply chain management and production process control.
Implementation Method 1
detecting and analyzing the spectrum of the electromagnetic signal that is emitted by the marking composition in response
Data Source
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AI summary
Systems and methods for marking of objects, such as keys/key-blanks, in a production line are disclosed. The objects are marked by applying a marking composition(s) to pre-selected areas on the surface thereof. The system includes a marking unit for dispensing a volume of marking composition in one or more localized pre-selected areas on the surface of an object to be marked; a holder/gripper for positioning the object to be marked in one or more positions relative to the marking unit so as to allow the marking unit to dispense the marking composition on the one or more pre-selected localized areas; a reading/verification unit for detecting the marking composition applied to the object thereby verifying that the objects are properly marked; an orientation sensing unit for identifying the orientation of the object to be marked relatively to the holder. The system also includes a controller configured for controlling the operation of the holder, orientation sensing unit, and the marking unit. The reading/verification unit is adapted to identify the marking composition in the one or more pre-selected areas on surface of the object by detecting an electromagnetic signal (such as XRF signal) emitted from the marking composition (e.g. in response to its illumination by X-ray or gamma-ray).