CO2-Powered Active Inking for Sensor-Free ATM Banknote Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing security devices for banking equipment, such as ATMs and ATMRs, are costly and time-consuming to install and maintain due to the need for multiple sensors and complex electrical components, making them impractical for widespread protection.
Innovation Solution
An active inking system that uses a mechanical and pneumatic mechanism activated by sparks from attacks, marking banknotes with ink to render them unusable, eliminating the need for electronic sensors and reducing maintenance requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sensors and electronic components are used to detect attacks, then detection capability is improved, but device complexity and installation cost increase
Solution Approach 1:
The patent extracts the attack detection function from complex electronic sensor systems and implements it through a simple mechanical trigger mechanism. The trigger is mechanically connected to the cassette structure, so when an attack occurs (e.g., cassette removal or damage), the trigger automatically activates the ink discharge mechanism without requiring electronic sensors or power sources.
Solution Approach 2:
The patent replaces expensive, maintenance-intensive electronic sensors with a simple, disposable mechanical trigger system. The trigger and ink cartridge are designed as single-use components that are replaced rather than repaired, eliminating the need for calibration and maintenance of electronic components while providing reliable attack detection.
2Reliability
If electronic sensors and controllers are installed, then attack detection is improved, but installation time and cost increase
Solution Approach 1:
The patent merges the attack detection function, trigger mechanism, and ink discharge system into a single integrated module that is pre-assembled and tested before installation. This module replaces multiple separate electronic components and can be installed as one unit, dramatically reducing installation time and complexity.
Solution Approach 2:
The trigger mechanism and ink cartridge are pre-configured and pre-assembled into the cassette module during manufacturing. This preliminary preparation ensures that during installation, no complex electronic wiring or sensor calibration is needed - the system is ready to function immediately upon installation.
3Measurement precision
If electronic components and sensors are used, then detection precision is improved, but maintenance and calibration costs increase
Solution Approach 1:
The mechanical trigger system is designed to be self-actuating based on physical attack conditions (cassette removal, damage, or forced opening). The system does not require external power, software updates, or calibration - it automatically detects attacks through mechanical motion and activates the ink discharge mechanism without human intervention or maintenance.
Solution Approach 2:
The patent employs a disposable trigger mechanism that is replaced rather than maintained. After use or if compromised, the entire trigger assembly is replaced as a single unit, eliminating all maintenance, calibration, and repair activities associated with electronic sensors and controllers.
4Adaptability or versatility
If electrical power and alarm systems are integrated, then system functionality is improved, but device complexity increases
Solution Approach 1:
The patent extracts the alarm notification function from the core security mechanism and implements it through simple, passive visual indicators (colored LEDs) that require no electrical power or software control. The ink discharge mechanism is mechanically triggered by physical attack conditions, eliminating the need for complex electrical systems while maintaining effective security functionality.
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 efficient and cost-effective protection by marking banknotes without requiring electrical power or complex sensors, simplifying installation and maintenance, and ensuring rapid deployment in vulnerable locations.
Implementation Method 1
CO2 gas cylinders, cylinder activation trigger, connections and piping
Implementation Method 2
attack detection sensors
Data Source
AI summary
An active inking system (1) secured to the payer module (25) of the self-service equipment is described. The active inking system (1) includes a modification to the upper cover (4) of the cassette (24), where three upper holes (5) and a front hole (6) are made; the upper holes (5) secure the spreader set (2) and the front hole (6) receives the male quick coupling (13) through which the ink (29) enters. The system (1) comprises a spark sensor (14), component securing structure (12), male quick coupling (13), ink cylinders (15), screws (16), ink outlet connections (20), activation trigger (17), CO2 gas cylinders (18), tubes (19) and connections (21) for compressed gas. The spreader set (2) comprises a tank (10) aligned with the front hole (6) of the upper cover (4) of the cassette (24), the tank (10) in communication with the spreader tube (8) equipped with orifices (9) directed to the banknotes (7) through which the ink (29) is expelled to mark them. The sparks (27) activate the spark sensor (14), which activates the trigger (17), breaks the seal (28) of the CO2 cylinder (18), pressurizes the tubes (19) for compressed gas, moves the front (22) and rear (23) plungers and pushes the ink (29).