Buffer Management for Banknote Measurement Data Storage
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Solution Overview
Problem
Existing value document processing devices face challenges in efficiently acquiring and storing high-resolution measurement data from large numbers of banknotes, particularly due to high data transmission speeds required for modern optical sensors, which can lead to difficulties in data management and parameter adaptation.
Innovation Solution
A method and device that utilize a feeding device, sensor device with an intermediate buffer store, and permanent memory to manage measurement data by interrupting the feeding of banknotes when the buffer utilization reaches a predetermined limit, allowing for real-time data storage in the buffer and subsequent permanent storage, enabling continuous data recording and transmission at lower speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-resolution measurement data from modern optical sensors is acquired for large numbers of banknotes, then measurement precision and data quality are improved, but data transmission speed requirements increase and data management becomes more difficult
Solution Approach 1:
The patent divides the storage system into two segments: an intermediate storage unit for temporary holding of measurement data and a permanent storage device for long-term storage. This segmentation allows the system to manage high-resolution data efficiently by processing and transferring data in manageable batches rather than handling all data simultaneously, thereby reducing data management complexity while maintaining high measurement precision.
Solution Approach 2:
The intermediate storage unit acts as an intermediary between the optical sensors and the permanent storage device. It buffers the high-resolution measurement data, allowing the system to decouple the high-speed data acquisition from the slower data transfer to permanent storage, thus managing data flow complexity without compromising data quality.
2Reliability
If measurement data is stored in real-time for large numbers of banknotes, then data completeness is improved, but buffer overflow risk increases when buffer utilization reaches limits
Solution Approach 1:
The patent implements dynamic buffer management where the system continuously monitors buffer utilization and adapts its operation accordingly. When the buffer reaches a predetermined utilization limit, the system automatically interrupts the feeding of banknotes and pauses data acquisition, preventing buffer overflow while maintaining data completeness. This dynamic adjustment ensures reliable data storage without exceeding buffer capacity.
Solution Approach 2:
The system employs feedback control by monitoring buffer utilization levels and using this information to regulate data acquisition. When the buffer approaches its limit, the system receives feedback about the current storage capacity and responds by interrupting the feeding process, thereby preventing harmful buffer overflow while ensuring complete data capture within available capacity.
3Productivity
If the feeding of banknotes is interrupted for permanent storage, then data transmission speed requirements are reduced, but processing time increases
Solution Approach 1:
The patent implements periodic action by alternating between phases of data acquisition and phases of data transfer to permanent storage. The system accumulates measurement data in the intermediate storage unit during acquisition phases, then periodically interrupts to transfer data to permanent storage at lower speeds. This periodic alternation allows the system to maintain high productivity during acquisition while managing transmission speed requirements during transfer phases, minimizing overall processing time.
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
This approach allows for quasi-continuous data recording and storage of large amounts of measurement data, ensuring efficient data transmission to permanent memory, even with lower data transport speeds, and facilitates the adaptation of classification parameters for improved banknote processing.
Implementation Method 1
The classification is based on various physical properties of the individual, i.e., each processed, banknote. Examples of such physical properties include optical properties, especially color properties, magnetic properties, or ultrasonic properties.
Implementation Method 2
The classification is based on various physical properties of the individual, i.e., each processed, banknote. Examples of such physical properties include optical properties, especially color properties, magnetic properties, or ultrasonic properties.
Implementation Method 3
The classification is based on various physical properties of the individual, i.e., each processed, banknote. Examples of such physical properties include optical properties, especially color properties, magnetic properties, or ultrasonic properties.
Data Source
Figure 1~2
AI summary
A method is described for providing measurement data from a value document processing device for processing value documents, according to which method individual value documents are supplied and measurement data for the value documents is captured in real time by means of a sensor device and stored in a buffer memory. While the individual value documents are being supplied and/or the measurement data is being captured, the current utilization of the buffer memory is compared with a predefined limit utilization. Depending on the result of the comparison, the supply of value documents is interrupted and measurement data from the buffer memory is permanently stored in a permanent memory. The buffer memory is released again during permanent storage and/or after permanent storage of the measurement data in the permanent memory and following release of the buffer memory the supply of individual value documents and the capture and storage in the buffer memory of measurement data for the value documents supplied is recommenced.