Banknote Stacking Weight Measurement Accuracy
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Solution Overview
Problem
Conventional methods for detecting the number of banknotes in packaged bundles suffer from insufficient accuracy, particularly due to environmental factors and mechanical errors during the bundling and transportation processes.
Innovation Solution
A banknote stacking apparatus equipped with first and second weight measurement parts and a controller, which measures the weight of banknote bundles and compares these measurements to determine if the number of bundles is correct, ensuring high accuracy by accounting for weight variations due to humidity and bundling material influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If optical detection devices (such as cameras) are used to detect the number of banknotes, then the detection process is non-contact and simple, but the accuracy to detect the number of banknotes is insufficient
Solution Approach 1:
The patent replaces optical detection with weight-based detection. Instead of using cameras to visually count banknotes, the system uses weight sensors to measure the weight of bundled banknotes and calculates the number of banknotes based on their weight, thereby achieving higher detection accuracy
Solution Approach 2:
The patent changes the detection parameter from visual/optical properties to physical weight properties. By measuring weight instead of using optical images, the system achieves more accurate detection of banknote quantity that is not affected by environmental factors like lighting conditions
2Reliability
If conventional optical detection methods are used, then the detection process is simple and fast, but environmental factors and mechanical errors cause insufficient accuracy
Solution Approach 1:
The patent replaces the optical detection system with a weight-based detection system. Weight sensors measure the mass of banknote bundles, and the controller calculates the number of banknotes from weight data, providing reliable detection that is independent of environmental conditions such as lighting, humidity, and temperature variations
Solution Approach 2:
The patent introduces weight as an intermediary physical quantity to detect banknote quantity. Instead of directly counting or visually inspecting banknotes, the system measures weight as an intermediate parameter and derives the number of banknotes from this measurement, thereby achieving reliable detection under various environmental conditions
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
This solution enables precise detection of the number of banknote bundles, reducing errors and improving accuracy compared to optical detection methods, even when environmental factors affect the weight of the banknotes.
Implementation Method 1
a first weight measurement part that measures a weight of a first banknote bundle
Data Source
AI summary
According to one embodiment, a banknote stacking apparatus includes a first weight measurement part, a second weight measurement part, and a controller. The first weight measurement part measures a weight of a first banknote bundle. Banknotes laminated along a thickness direction of the banknotes are bundled as the first banknote bundle. The second weight measurement part measures a weight of a second banknote bundle. A first predetermined number of first banknote bundles laminated are bundled as the second banknote bundle. The controller compares the weight measured by the first weight measurement part with the weight measured by the second weight measurement part, and decides whether the number of first banknote bundles bundled as the second banknote bundle is smaller than the first predetermined number, based on a comparison result of the weight.