Money Handling Device Sensor Calibration and Pairing
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Solution Overview
Problem
Money handling devices experience significant quality variations due to machine differences, leading to recognition failures when sensor units are replaced or adjusted by uncertified workers or tools, resulting in processing errors and rejections.
Innovation Solution
A money handling device with a correction value calculation/storage processing unit that calculates and stores correction values for sensor units, ensuring precise adjustments and pairing with the control board to minimize machine differences and prevent unauthorized sensor usage, thereby ensuring high-quality and consistent performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If sensor units are replaced or adjusted by uncertified workers or tools, then ease of repair and operation is improved, but manufacturing precision and reliability deteriorate due to unrecognized machine differences
Solution Approach 1:
The system performs preliminary actions by storing correction values for each sensor unit before replacement occurs. When a sensor is replaced, the system retrieves the pre-stored correction values and applies them automatically, ensuring that the new sensor is properly calibrated without requiring recertification or specialized adjustment tools.
Solution Approach 2:
The correction value storage unit acts as an intermediary between the sensor unit and the control board. It stores and manages the correction values, allowing uncertified workers to perform simple replacements while maintaining the precision that would otherwise require certified adjustment procedures.
2Reliability
If correction values are stored for each sensor unit, then reliability and manufacturing precision are improved, but device complexity increases due to additional storage and processing requirements
Solution Approach 1:
Instead of storing complex calibration data or multiple configuration files, the system creates a simplified copy of the necessary correction information and stores it in the correction value storage unit. This copy contains only the essential correction values needed for each sensor unit, reducing the data burden while maintaining reliability.
Solution Approach 2:
The control board automatically retrieves and applies the correction values stored in the correction value storage unit when a sensor unit is detected. This self-service mechanism eliminates the need for manual intervention or complex adjustment procedures, reducing operational complexity while ensuring consistent recognition quality.
3Manufacturing precision
If certified adjustment procedures are required for sensor replacement, then manufacturing precision is maintained, but productivity decreases due to time-consuming adjustment processes
Solution Approach 1:
The system performs the time-consuming correction value calculation and storage during the manufacturing or initial certification phase. Once stored, these correction values can be quickly retrieved and applied during sensor replacement, eliminating the need for time-consuming adjustment procedures at the time of replacement.
Solution Approach 2:
The patent replaces the mechanical/manual adjustment process with an automated electronic system. Instead of requiring physical adjustment tools and manual calibration, the system uses electronic correction values stored in memory to automatically compensate for sensor variations, dramatically increasing replacement speed while maintaining precision.
Data Source
Figure 1~1(b)
Figure 2
Figure 3~4
AI summary
The present invention provides a money handling device having excellent quality and small variation in quality due to machine difference, and a method for controlling a money handling device capable of ensuring excellent quality and reducing a variation in quality due to machine difference. The device includes a sensor, a sensor storage that stores an identification information piece of the sensor, a device storage, the device storage and the sensor being provided at different positions, a unit that calculates a correction value of the sensor and that stores the identification information piece into the device storage after or during the correction value calculation processing, and another unit that compares the identification information pieces stored in the sensor storage and the device storage to determine whether they match each other. The device does not execute recognition processing when the identification information pieces do not match each other.