Self-Service Terminal Cash Dispensing Quality Control
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Solution Overview
Problem
Existing self-service terminal systems face inefficiencies in banknote dispensing quality control, leading to idling of equipment, mechanical abrasion, and reduced service quality due to the accumulation of invalid banknotes, which affects the operation rate and resource optimization.
Innovation Solution
A method and device for detecting and controlling banknote dispensing quality by identifying empty and jammed cashboxes, calculating qualified rates of dispensed banknotes, and sequencing cashboxes based on their quality, ensuring that banknotes are dispensed from high-quality cashboxes first and re-sequence them after each dispensing cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If banknotes are dispensed according to slots, then cashboxes with the same nominal value can dispense synchronously, but if one cashbox is empty it causes other non-empty cashboxes to stop dispensing
Solution Approach 1:
The patent implements dynamic cashbox selection by introducing a qualified rate parameter that changes over time based on dispensing performance. The system dynamically adjusts which cashboxes are selected for dispensing based on their historical performance, allowing flexible switching between cashboxes rather than following fixed slot-based or sequential rules.
Solution Approach 2:
The patent changes the selection parameter from static (slot position or sequential order) to dynamic (qualified rate of dispensed banknotes). By using the qualified rate as the selection criterion, the system can adaptively choose the best cashbox based on real-time performance data, resolving the contradiction between synchronous dispensing and continuity.
2Reliability
If banknotes are dispensed according to nominal value sequentially, then one cashbox emptying does not affect others, but cashboxes have different lifetimes causing inefficiency
Solution Approach 1:
The patent introduces a qualified rate parameter that quantifies cashbox performance, enabling dynamic selection based on actual dispensing quality rather than fixed sequential order. This allows the system to optimize for both continuity and efficiency by selecting cashboxes with higher qualified rates.
Solution Approach 2:
The system implements feedback by tracking the qualified rate of each cashbox and using this information to guide future dispensing decisions. The qualified rate serves as a feedback signal that informs the selection process, allowing the system to learn from past performance and improve overall efficiency while maintaining continuity.
3Ease of operation
If a cashbox with high priority dispenses first, then it can be shielded immediately when empty, but low priority cashboxes remain unused even if they have good quality banknotes
Solution Approach 1:
The patent changes the selection parameter from static priority levels to dynamic qualified rates. This allows the system to automatically identify and utilize high-quality cashboxes regardless of their priority designation, improving resource utilization while maintaining ease of operation through automated selection.
Solution Approach 2:
The system performs self-service by automatically evaluating cashbox quality through the qualified rate metric and selecting appropriate cashboxes without manual intervention. This eliminates the need for manual cashbox management while maximizing resource utilization based on actual performance data.
4Reliability
If the recycle box fills up with invalid banknotes from a high priority cashbox, then the terminal cannot work properly, but maintenance personnel must clear the recycle box causing equipment idling
Solution Approach 1:
The patent applies preliminary action by proactively selecting cashboxes with high qualified rates before dispensing operations begin. This preventive approach ensures that invalid banknotes are minimized from the start, preventing recycle box overflow and avoiding the need for maintenance intervention and subsequent equipment idling.
Solution Approach 2:
The system converts the potential harm of invalid banknotes into a benefit by using the qualified rate metric to identify and select only high-quality cashboxes. This transforms the problem of invalid banknote management into an opportunity for automated quality-based selection, improving terminal operation reliability while eliminating maintenance-related idling time.
Data Source
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AI summary
A method for detecting and controlling self-service terminal cash dispensing quality, comprising: step S1, detecting an empty box in a self-service terminal, setting the cash dispensing qualification rate of the empty box as 0, and permanently shielding the same; step S2, detecting a cash-jamming cash-box in the self-service terminal, setting the cash dispensing qualification rate of the cash-jamming cash-box as 0, and permanently shielding the same; step S3, detecting the cash dispensing qualification rates of all non-empty and non-cash-jamming cash-boxes, classifying all the non-empty and non-cash-jamming cash-boxes according to denomination, and sequencing the cash-boxes of each denomination in descending order according to the cash dispensing qualification rates; and step S4, maintaining the first M-th number of cash-boxes of each denomination in an open state, and maintaining the other cash-boxes in a temporarily shielded state. The method and device for detecting and controlling self-service terminal cash dispensing quality firstly feeds out cash from a cash-box having a higher cash dispensing qualification rate, and will re-sequence the cash dispensing qualification rates after each cash dispensing operation, thus not only ensuring the same amount of service and minimizing the cash in a recycling box, but also optimizing idle cash resources, and improving the activation rate of a self-service device.