Flexible Document Storage Control for High Capacity at Constant Power
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Solution Overview
Problem
Existing banknote storage systems have limited capacity and increase power consumption when attempting to store more banknotes due to the increased length of transport tapes, leading to inefficiencies and higher costs.
Innovation Solution
A method and system that utilizes a conveyor belt, sensor group, and central processing unit to control the storage and issuing module, adjusting the speed and engagement of banknotes with a transport tape to optimize storage capacity without increasing power consumption by inversely proportional acceleration based on the assembly's inertia.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the length of transport tape is increased to store more banknotes, then storage capacity is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic speed adjustment of the transport tape based on the diameter of the banknote stack. As the stack diameter increases, the system automatically reduces the acceleration and speed parameters to compensate for increased inertia, thereby maintaining constant power consumption while continuing to store additional banknotes
Solution Approach 2:
The system dynamically changes operational parameters (speed, acceleration) based on the current state of the banknote stack. The processor calculates appropriate speed reductions based on stack diameter measurements, allowing the system to adapt to varying storage conditions and maintain energy efficiency throughout the storage process
2Productivity
If multiple storing and issuing modules are added to handle high circulation denominations, then productivity is improved, but device complexity and cost increase
Solution Approach 1:
The patent enables a single storing and issuing module to handle multiple denominations by implementing dynamic speed adjustment based on banknote dimensions. The system detects banknote size and automatically adapts operational parameters, allowing one module to perform the work previously requiring multiple specialized modules, thereby reducing device complexity while maintaining productivity
3Quantity of substance
If the diameter of the storage roller assembly is increased to store more banknotes, then storage capacity is improved, but inertia increases leading to higher power consumption
Solution Approach 1:
The system preemptively reduces acceleration and speed before the transport tape engages with large-diameter banknote stacks. By calculating the expected inertia based on stack diameter and pre-adjusting motor parameters, the system prevents excessive force requirements and maintains consistent power consumption throughout the storage process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances storage capacity while maintaining consistent power consumption by optimizing the speed and engagement of banknotes, allowing for efficient handling of larger volumes without additional energy use.
Implementation Method 1
holding means, arranged at said conveying section, and configured for engaging each flexible document B(m) with the transport tape
Implementation Method 2
one sensor group, arranged with respect to said conveyor belt in such a way that it can sense any flexible document B(m) transported on said conveyor belt
Data Source
AI summary
Method (1) for storing a series of flexible documents in a system, the system comprising one storing and issuing module, one conveyor belt, configured for supporting and transporting the flexible documents toward the at least one storing and issuing module at known conveying speed vc(t), one sensor group, configured to sense any flexible document B(m) transported on the conveyor belt and provide corresponding sensing information, and a central processing unit, operatively connected to the sensor group and the at least one storing and issuing module. The method (1) includes, for an mth flexible document B(m) of the series, the steps of: (1.1) sensing, through sensor group, sensing information regarding flexible document B(m), (1.2) providing within a known prediction time instant tp(m) from sensing, the sensing information to processor; (1.3) determining, through the processor: based on the received sensing information and conveying speed vc(t) of conveyor belt, a subsequent joint time instant tj(m), wherein the rear end of the flexible document B(m) will have entered the storing and issuing module and will be engaged by the holding means with the transport tape, based on a diameter of an assembly formed by storage roller and transport tape rolled together with any previously engaged flexible document around the storage roller, an acceleration value (at), and based on the acceleration value (at), a deceleration value (dect); (1.4) calculating a pattern of linear speed vt(m)(t) at which transport tape must be moved by storage roller, and (1.5) controlling actuation of the holding means at tj(m) and, based on the pattern of linear speed vt(m)(t), one or more respective control signal to the motor, causing control of the storage roller rotation, and a movement of the transport tape according to the calculated speed pattern vt(m)(t).