Sheet Thickness Detection Zero Value Correction
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Solution Overview
Problem
Current thickness detection methods in financial self-service equipment face inaccuracies due to mechanical fluctuations and changes in the operating environment, leading to large detection deviations and instability in thickness data.
Innovation Solution
A device and method that utilize a zero value correcting unit to calculate a standard zero value using a formula that weights dynamic and historical zero values, ensuring accurate thickness detection by minimizing the impact of mechanical and environmental changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed zero value method is used for thickness detection, then the device structure is simple and easy to operate, but the measurement precision deteriorates due to aging and environmental changes
Solution Approach 1:
The patent transforms the fixed zero value into a dynamic zero value that automatically adapts to environmental changes and device aging. The zero value is no longer static but changes according to the actual detection environment, allowing the system to maintain high measurement precision while keeping the operation simple through automatic adaptation.
Solution Approach 2:
The system implements feedback by continuously monitoring the detection environment and using the detected zero value to correct subsequent measurements. The zero value is fed back into the calculation process to compensate for drift caused by aging and environmental factors, thereby maintaining measurement precision over time.
2Measurement precision
If a dynamic zero value method is used for thickness detection, then the measurement precision is improved by adapting to environmental changes, but the reliability deteriorates due to data fluctuations and deviations
Solution Approach 1:
The system uses feedback to continuously monitor and adjust the zero value based on actual detection conditions. By feeding back the detected zero value to correct subsequent measurements, the system maintains precision while compensating for environmental variations and device aging through automatic adaptation.
Solution Approach 2:
The patent changes the parameter of zero value from fixed to variable, allowing it to adapt to different detection environments. This parameter change enables the system to maintain measurement precision under varying conditions while the correction mechanism ensures reliability by compensating for drift and fluctuations.
3Measurement precision
If real-time zero value detection is performed before each banknote, then the measurement precision is improved, but the productivity decreases due to additional detection time
Solution Approach 1:
The patent merges the zero value detection process with the normal thickness detection process. The same sensor and detection mechanism are used for both purposes, eliminating the need for separate detection steps and maintaining productivity while achieving real-time precision through integrated measurement.
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 solution effectively stabilizes thickness detection data by reducing errors caused by aging equipment and environmental changes, while also addressing sudden fluctuations in dynamic zero value measurements, resulting in precise and consistent thickness readings.
Implementation Method 1
a sensor, configured to obtain a distance variation value between the detecting roll and the sensor
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A method and a device for continuously detecting thickness of a sheet-type medium in a continuous conveying process can achieve a more accurate and stable detected thickness value. The device for detecting thickness of a sheet-type medium comprises a conveying roller (1); a detection roller (2), the detection roller (2) being arranged opposite to the conveying roller (1), and an elastic displacement existing between the detection roller (2) and the conveying roller (1); a plate spring (3), arranged by pressing opposite to the other side of the detection roller (2) relative to the conveying roller (1); a sensor (4), arranged above the plate spring (3); and a thickness calculation unit (6), calculating a thickness value of the sheet-type medium according to a distance detection value and a standard zero value; and further comprises a zero value correction unit (7), used for correcting a dynamically detected zero value according to a zero value correction formula to obtain the standard zero value; and a data storage unit, used for storing a preset distance measurement zero value and operating data required for zero value correction.