Paper Sheet Handling Reject Unit Segmentation
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Solution Overview
Problem
Existing paper-sheet handling apparatuses, such as banknote handling machines, face difficulties in sorting counterfeit, suspect, and abnormally transported genuine notes due to their mixed state in the reject unit, making it hard for operators to identify and separate these notes efficiently.
Innovation Solution
A paper-sheet handling apparatus equipped with a recognition unit that acquires image information of each sheet, allowing the control unit to output display information about each sheet sent to the reject unit, enabling operators to easily distinguish and sort genuine notes from counterfeit and suspect notes by observing serial numbers or other identifying features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If paper sheets are sent to a reject unit for abnormal or counterfeit notes, then abnormal and counterfeit paper sheets are separated from normal sheets, but multiple types of abnormal paper sheets become mixed together making them difficult to sort
Solution Approach 1:
The reject unit is divided into multiple sub-units (first reject unit and second reject unit) that separately store different types of abnormal paper sheets. The control unit directs counterfeit/suspect notes to the first reject unit and abnormally transported genuine notes to the second reject unit, preventing mixing and enabling easy sorting.
2Reliability
If operators manually sort counterfeit and suspect notes from mixed stacks, then compliance with regulations is achieved, but operational efficiency decreases due to time-consuming manual sorting
Solution Approach 1:
The recognition unit automatically identifies and categorizes different types of abnormal paper sheets before they reach the reject unit. The control unit then automatically directs them to appropriate sub-units based on recognition results, performing the sorting action in advance before manual handling is needed.
3Device complexity
If a single reject unit is used for all abnormal paper sheets, then device complexity is reduced, but the ability to distinguish and handle different types of abnormal sheets deteriorates
Solution Approach 1:
The reject unit is segmented into multiple sub-units (first and second reject units) with distinct functions. This segmentation enables the system to handle different types of abnormal paper sheets separately while maintaining a relatively simple overall structure that builds upon the conventional single reject unit design.
Data Source
AI summary
A paper-sheet handling apparatus (10) includes: a recognition unit (14) configured to obtain recognition information of a paper sheet by recognizing the paper sheet, and to obtain an image of the paper sheet so as to obtain paper-sheet information from the acquired image of the paper sheet; a reject unit (18) to which a paper sheet, which is other than a paper sheet that has been recognized as a normal paper sheet by the recognition unit (14), is sent; and a control unit (30) configured to output display information about the paper-sheet information of each paper sheet sent to the reject unit (18). The display information output by the control unit (30) is displayed on a display unit (22) disposed on the paper-sheet handling apparatus (10), or transmitted to an external apparatus (40), which is other than the paper-sheet handling apparatus (10), through an interface unit (39) so as to be displayed on a display unit disposed on the external apparatus (40).