Paper-Money Testing Devices TRIZ Cases
- Paper Sheet Serial Number Recognition via GA Parameter Optimization
A genetic algorithm optimizes serial number recognition parameters for paper sheet images, improving accuracy while reducing manual tuning time.
- Bill Acceptor and Mobile Payment Integration for Automated Machines
A unified bill acceptor and communications path lets automated machines handle real-time cash and mobile payments through one control flow.
- Optical Line Sensor Lens Array for Deep Depth of Field
Separated light-receiving lenses prevent overlap and missing pixels while extending working distance, depth of field, and resolution.
- Artificially Soiled Banknote Test Decks for Reproducible Calibration
Artificial soil patterns with defined optical properties replace manual note selection, enabling reproducible banknote sorter calibration.
- Transparent Security Window With Microlenses for Anti-Counterfeit Imaging
Microlenses over sub-lens printed image elements create flip and 3D effects in transparent document windows, strengthening visual and machine verification.
- Light-Scattering Particle Identifiers for Anti-Forgery Authentication
Randomly embedded light-scattering particles create unique optical patterns that make item identifiers hard to forge and verify.
- Luminescent Security Marking for Fast Banknote Authentication
A mixed luminescent marker uses linear fitting of decay curves to speed security document authentication while preserving identification accuracy.
- Banknote Sensor Deflector for Tolerance-Resistant Validation
An elastic deflector guides banknotes into steady sensor contact, reducing assembly sensitivity and failures from tolerances or debris.
- RF-Activated Lamination Security Element for Authorized Verification
High-frequency verification triggers an embedded actuator only after valid signal checks, making document authentication visible and harder to counterfeit.
- Phosphorescent Authentication Using Smartphone Spectral Signatures
Phosphorescent markings create spectral and decay-time signatures that a smartphone camera can capture for low-cost product authentication.
- Magnetic Document Recognition With Periodic TMR Sensor Sampling
Periodic TMR sensor activation synchronized to document travel improves magnetic authentication accuracy, speed, and energy use.
- Multispectral Security Article Authentication for Hidden Feature Detection
Multispectral sensing with onboard light sources reveals hidden document security features and helps distinguish authentic from counterfeit articles.
- Silica-Coated DNA Marking for Durable Item Verification
Silica polycondensation immobilizes DNA tracers in surface indentations, enabling durable item authentication and reliable quantification.
- Printed Material With NIR Code Layer for Stable Invisible Recognition
Near-infrared absorbing layers enable invisible printed codes that stay visually unobtrusive while improving recognition stability.
- Luminescence Verification Sensor With Velocity-Based Intensity Correction
A reference-medium velocity correction compensates luminescence distortion at high document transport speeds for accurate value document verification.
- Optical Sensor QC for Value Documents With Two-Stage Screening
Two-stage optical testing screens impurities before feature application, then verifies security features to cut waste and protect counterfeit resistance.
- Document Edge Pattern Reconstruction for Secure Authentication
Merging opposite document edge areas reconstructs complete anti-counterfeit patterns, improving authentication accuracy on deformed copies.
- DOVID Verification Using Flash-Lit Image Similarity on Curved Surfaces
Two ROI images under ambient light and flash use SSIM and color transitions to verify DOVIDs reliably on curved, reflective surfaces.
- Optical Security Surface Geometry for Multi-Axis Reflection
Magnetically aligned reflective platelets on a surface of revolution create distinct reflections on different rotation axes, making counterfeits harder to mimic.