Banknote Rolling-Out Speed Control for Reel Storage
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Solution Overview
Problem
Banknotes stored in a reel for a long time become shaped as an arc and easily get stuck when rolled out at high speeds, causing faults in the device.
Innovation Solution
A method and apparatus that store the rolling-in time and sequence number of banknotes, calculate the storage time, and adjust the rolling-out speed based on preset conditions to prevent sticking, rolling out banknotes at a lower speed if they are shaped as an arc to avoid faults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the banknote is rolled out at a fast preset speed, then the device meets the speed requirement for rolling out banknotes, but the banknote easily gets stuck in the device causing faults
Solution Approach 1:
The patent applies dynamics by making the rolling-out speed adjustable rather than fixed. The control unit dynamically adjusts the rolling-out speed based on the storage time of the banknote. For banknotes stored longer than a preset time threshold, the system uses a first (lower) rolling-out speed to prevent getting stuck, while for recently stored banknotes, it uses a second (higher) rolling-out speed to meet speed requirements. This dynamic speed adjustment resolves the contradiction between maintaining high speed and preventing banknote sticking.
Solution Approach 2:
The patent changes the speed parameter based on the storage time parameter of the banknote. By monitoring how long a banknote has been stored and comparing it to a preset time threshold, the system changes the rolling-out speed parameter accordingly. This parameter change strategy allows the system to adapt the rolling-out speed to the specific state of each banknote, preventing sticking for long-stored banknotes while maintaining efficiency for recently stored ones.
2Duration of action of moving object
If the banknote is stored in the storage reel for a long time, then the storage device can handle various banking operations, but the banknote is shaped as an arc due to the radian of the storage reel
Solution Approach 1:
The patent applies preliminary action by detecting and recording the storage time of each banknote before it is rolled out. The control unit monitors how long each banknote has been stored in the reel and uses this information to determine the appropriate rolling-out speed. This preliminary detection and preparation of speed adjustment information prevents the banknote shape problem from causing issues during the rolling-out process.
Data Source
AI summary
A banknote rolling-out control method and apparatus and a banknote storage device are provided for solving the technical problem of device failure caused by the case where a banknote can easily be stuck in the device after being stored on a reel for a long time. The method includes: storing a rolling-in time at which a banknote enters a device and a corresponding banknote sequence number; obtaining a rolling-out time of a current banknote which needs to be rolled out; obtaining the rolling-in time corresponding to the banknote sequence number of the current banknote; and determining whether the rolling-in time and the rolling-out time satisfies a preset time condition, and rolling out the current banknote at a rolling-out speed lower than a preset speed in a case of a positive determination.