Sheet Inventory Checking Using Selective ID-Based Discharge
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Solution Overview
Problem
Conventional sheet handling apparatuses require all sheets to be temporarily removed and returned during reconciliation, leading to prolonged downtime.
Innovation Solution
A sheet handling apparatus that assigns identification information to each sheet, allowing for selective checking of inventory by comparing identification information with stored data, thus enabling rapid detection of inventory discrepancies without the need for full sheet removal and return.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all sheets are temporarily removed and returned during reconciliation, then inventory checking can be performed, but apparatus downtime is prolonged
Solution Approach 1:
Instead of removing all sheets from the storage unit during reconciliation, the system feeds out only a predetermined number of sheets (e.g., 5 sheets) for inventory checking. This partial action allows the reconciliation process to be completed without requiring removal of all sheets, thereby reducing apparatus downtime while still enabling accurate inventory verification through comparison of identification information
Solution Approach 2:
The system uses identification information (such as serial numbers) as a copy or representation of the physical sheets. By reading and comparing the identification information of fed-out sheets with the inventory information stored in the memory, the system can verify inventory accuracy without physically handling all sheets, thus reducing the time required for reconciliation
2Measurement precision
If all sheets are fed out one by one for reconciliation, then complete inventory checking is achieved, but processing time increases
Solution Approach 1:
The system feeds out only a predetermined number of sheets for reconciliation instead of all sheets. This partial action maintains sufficient verification accuracy while significantly reducing the time required for the reconciliation process, thereby improving productivity without sacrificing measurement precision
Solution Approach 2:
The system stores identification information of sheets in the memory in advance during normal operation. This preliminary action enables rapid comparison during reconciliation, as the system only needs to read and compare identification information of the fed-out sheets with the pre-stored information, rather than processing all sheets from scratch
Data Source
AI summary
A sheet handling apparatus comprises a transport path for transporting sheets, each sheet including individually assigned identification information; a storage that receives and stores the sheets; a feeder that feeds out the sheets stored in the storage to the transport path; and control circuitry configured to: store the identification information of the sheets in a memory; control the feeder to feed out, from the storage, one or more of the sheets in a case that necessity of checking an inventory amount of the sheets in the storage arises; control transport of the one or more sheets to the recognition circuitry and out of the discharge port; and determine an abnormality in the inventory amount of the sheets in the storage based on a comparison of the identification information of each of the one or more sheets with the identification information stored in the memory.