Bill Handling Apparatus Speed Control for Identification Accuracy
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Solution Overview
Problem
Conventional bill handling apparatuses face challenges in maintaining high identification accuracy, especially when installed in remote locations, as they often operate at high speeds for initial identification, leading to prolonged processing times and reduced accuracy due to the need for high-speed and low-speed identification processing.
Innovation Solution
A bill handling apparatus with a control system that allows for multiple feeding speed modes, including high-speed, normal-speed, and low-speed modes, enabling the user to select the optimal speed for improved identification accuracy through a stepping motor controlled by a motor driving pulse output section, which can adjust the bill feeding speed based on operational switches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the bill feeding speed is controlled to be fast for high-speed processing, then the overall processing speed is improved, but the bill identification accuracy deteriorates
Solution Approach 1:
The bill feeding mechanism is designed to dynamically adjust the feeding speed based on the identification result. The control section switches between a first feeding speed (higher speed for normal operation) and a second feeding speed (lower speed for re-identification), making the system adaptable to different operational states and resolving the contradiction between speed and accuracy
Solution Approach 2:
The system changes the feeding speed parameter according to the identification outcome. When identification succeeds, the higher first feeding speed is used for efficiency. When identification fails or accuracy deteriorates, the system switches to the lower second feeding speed for re-identification, thus optimizing both productivity and measurement precision under different conditions
2Productivity
If the bill is always fed at high speed for initial identification, then the processing efficiency is improved, but the bill identification time becomes long when re-identification is required
Solution Approach 1:
The feeding mechanism dynamically adjusts speed based on identification success. The control section monitors identification results and switches from the first feeding speed to the second feeding speed when re-identification is needed, optimizing the balance between processing efficiency and identification time
Solution Approach 2:
The system uses high-speed feeding (first feeding speed) to quickly process bills that are likely to be successfully identified, skipping the time-consuming low-speed phase for these cases. Only when identification fails does the system slow down for re-identification, thus minimizing overall identification time while maintaining efficiency
Data Source
AI summary
A bill handling apparatus according to one embodiment of the invention has a bill insertion slot into which a bill is inserted, a bill feeding mechanism for feeding the bill inserted from the bill insertion slot in the insertion direction, a bill reading section for reading the bill fed by the bill feeding mechanism, and a control section for controlling a bill feeding speed by the bill feeding mechanism in a plurality of kinds of speeds.