Paper Product Dispenser Authentication Using Laser-Engraved Marks
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Solution Overview
Problem
Existing dispensing systems for consumable paper products lack effective authentication methods to prevent the use of unauthorized or inferior quality refills, leading to issues like jamming and operational disruptions.
Innovation Solution
A method that uses laser engraving to create a hidden identification mark on the paper product, which is then verified using digital imaging within the dispenser, enabling the system to authenticate the product and engage a lock-out feature if unauthorized, thereby ensuring only authentic products are dispensed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a sensor unit is used to detect refill needs in a dispenser, then the dispensing operation can be automated and monitored, but the system lacks the ability to authenticate whether the refill product is authorized, allowing inferior quality products to be dispensed causing jamming and disruptions
Solution Approach 1:
An authentication system acts as an intermediary between the sensor unit and the dispensing mechanism. The system includes an imager that captures images of the paper product formation, a processor that analyzes the images to detect authentication marks, and a controller that receives authentication results. This intermediary layer verifies product authorization before enabling the dispensing operation, preventing inferior quality products from causing jamming and disruptions while maintaining automated operation.
2Reliability
If an authentication system with imaging and processing components is added to verify product marks, then product authenticity can be confirmed, but the device complexity and cost increase
Solution Approach 1:
The authentication system is designed to be integrated within the existing dispenser structure, where the imager can be positioned to utilize the same optical path or space as existing sensing components. The processor shares the same control circuitry and power supply as the dispensing controller, allowing a single integrated unit to perform both authentication and dispensing control functions. This multi-functionality approach confirms product authenticity while minimizing additional device complexity.
3Difficulty of detecting and measuring
If the authentication mark is made visible or prominent on the paper product, then authentication can be easily performed, but the product appearance is altered and may affect consumer acceptance
Solution Approach 1:
The authentication mark is applied locally to a specific, inconspicuous area of the paper product formation, such as the core or end cap, rather than across the entire product surface. The mark uses subtle variations in texture, reflectivity, or microscopic patterns that are undetectable to the human eye but easily distinguishable by the imager and processor. This local quality approach enables easy authentication while preserving the overall product appearance and consumer acceptance.
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 the use of counterfeit or inferior products by ensuring only authenticated items are dispensed, maintaining operational integrity and quality, without significantly increasing costs or affecting dispensing operations.
Implementation Method 1
Within the dispenser, directing incident light onto the surface and capturing a digital image of the surface, wherein the identification mark produces a recognizable authentication signature in the digital image
Data Source
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AI summary
A system and control method are provided for authenticating a paper product dispensed from a dispenser. The paper product formation is loaded into the dispenser, the formation having an identification mark engraved into a surface thereof. Within the dispenser, incident light is directed onto the surface and a digital image of the surface is captured. The engraved identification mark produces a recognizable authentication signature in the digital image as compared to surrounding surface of the paper product formation. The captured digital image is analyzed for presence of the authentication signature, and if the authentication signature is not present, the paper product formation is deemed unauthorized and a responsive action is initiated.