Inductive Sensor Ink Kit for Cash Cassette Manipulation Detection
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Solution Overview
Problem
Existing ink kits for securing notes of value in cash cassettes have incomplete protection against manipulation, as sensors only effectively detect damage to the dye container and not other components like the connecting line and spray system, leaving vulnerabilities.
Innovation Solution
Incorporating an inductive sensor that forms a resonance system with metallic components of the ink kit, including the dye container, connecting line, and spray system, allowing for detection of any changes or attempts to manipulate these components, such as drilling or bending, using a single coil and microprocessor-based control unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive foils are used to detect manipulation, then manipulation detection capability is provided, but the protection is incomplete and requires great effort to attach
Solution Approach 1:
The patent combines the manipulation sensor, dye container, and connecting line into a single integrated ink kit assembly. The sensor is positioned to monitor the entire dye delivery system, and the kit is pre-configured as a complete unit that simplifies installation while maintaining comprehensive manipulation detection coverage.
Solution Approach 2:
The manipulation sensor serves multiple functions: it detects drilling attempts, monitors the integrity of the dye container and connecting line, and triggers the dye ejection mechanism. This multi-functional design reduces the need for separate components and attachment steps while maintaining reliable manipulation detection.
2Object-affected harmful factors
If conductive foils surround the dye container, then drilling detection is enabled, but other parts like connecting line and spray system remain unprotected
Solution Approach 1:
The patent segments the manipulation detection function into multiple sensing zones within the ink kit. The sensor is positioned to create detection fields that cover the dye container, connecting line, and spray system separately, allowing each component to be monitored independently for manipulation attempts.
Solution Approach 2:
The patent introduces a conductive fluid or gel as an intermediary medium that fills the space between the sensor and various components (dye container, connecting line, spray system). This intermediary extends the sensor's detection capability to all parts of the ink kit, enabling comprehensive manipulation detection without requiring separate sensors for each component.
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
Provides comprehensive protection against manipulation by detecting any mechanical changes to the ink kit components, ensuring the notes of value are irreversibly colored and secured, with a simple and cost-effective design.
Implementation Method 1
the inductive sensor forms an oscillating circuit together with at least the dye container (32) and/or the connecting line (38, 40). Any change to the dye container (32) and/or the connecting line (38, 40) results in the alternating magnetic field being changed, which the inductive sensor can easily detect.
Implementation Method 2
An inductive sensor enables changes to metallic components to be easily and precisely detected. In particular, the inductive sensor allows any mechanical changes to metallic components of the ink kit, e.g. B. bending, breaking and / or drilling, can be easily and reliably detected.
Implementation Method 3
inductive sensors, the dye container and all metallic components that are connected to the dye container, for example connecting lines, form a common resonance system, with any change to these components leading to a detuning of the resonance system, which can be detected.
Data Source
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AI summary
The invention relates to an ink kit (30) for the irreversible invalidation of banknotes, comprising a dye container (32) for holding a dye, a spray system (34), and at least one connecting line (39, 40). Furthermore, a tamper sensor (50) for detecting tampering with the ink kit (30) is provided, comprising at least one inductive sensor.