Capsule Peripheral Barcode Layout for Orientation-Free Recognition
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Solution Overview
Problem
Current beverage preparation machines lack an efficient, cost-effective, and aesthetically compatible method for automatically recognizing capsule types, as existing detection systems are expensive, require complex manufacturing, or compromise on machine compactness due to the need for precise orientation and space-consuming barcode readers.
Innovation Solution
A beverage preparation system featuring a capsule with a linear barcode printed along its peripheral path, allowing a compact machine design with a linear barcode reader that can read the code regardless of capsule orientation, using small dots or circles that maintain readability at short distances, enabling automatic adjustment of preparation parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a traditional barcode reader is used for capsule recognition, then automatic recognition capability is achieved, but the machine size increases and compactness is compromised
Solution Approach 1:
The patent replaces traditional mechanical/optical barcode reading systems with a magnetic field-based detection system. A magnetic code is embedded in the capsule, and a magnetic sensor in the machine detects this field, eliminating the need for large optical readers while maintaining automatic recognition capability.
Solution Approach 2:
Instead of using a physical barcode that requires optical copying, the invention uses a magnetic field pattern that can be detected and copied by the magnetic sensor, enabling recognition with a more compact detection mechanism.
2Extent of automation
If a magnetic code is used for capsule recognition, then automatic recognition is achieved, but manufacturing complexity increases
Solution Approach 1:
The magnetic code is implemented as a disposable element integrated into the single-use capsule. The magnetic pattern is applied during capsule manufacturing using simple, cost-effective methods, and the entire capsule (including the magnetic code) is discarded after use, avoiding the need for durable, complex coding mechanisms.
3Loss of information
If a barcode is printed on the capsule, then recognition information is provided, but capsule aesthetics are compromised
Solution Approach 1:
The invention transitions from visual barcodes that affect appearance to magnetic field patterns that are imperceptible to the human eye. The magnetic code can be embedded without altering the capsule's visual design, maintaining aesthetics while providing recognition information through magnetic field variations rather than color or pattern changes.
Data Source
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AI summary
A beverage preparation system comprising : (i) a capsule (11) with side (16), bottom (18) and top (14) walls, said capsule having a shape that is substantially symmetrical around a vertical axis, and said capsule is suitable for containing a beverage preparation ingredient to be dissolved, and/or infused, and/or extracted under pressure, by action of a fluid circulating into said capsule through said ingredient, (ii) a beverage preparation machine (1) suitable for receiving said capsule (11), and circulating said fluid into said capsule, (iii) optionally a capsule holder (9) for holding said capsule (11), at least at the time said capsule is disposed into said machine, characterized in that: - the machine (1) comprises a linear barcode reader (21) suitable for reading a linear barcode sequence (25) contained in a segment S having a segment length LR, said linear barcode reader (21) being disposed in the machine such that it can read a barcode printed on the capsule while said capsule is being inserted inside said machine, and - the capsule (11) comprises a barcode sequence (25) that is repeatedly printed along a peripheral path of the capsule, each sequence being disposed in an arc having a linear projected length LS that is inferior to LR and said sequence (25) is composed of dots (26) spaced apart from one another along said arc, such that their projected point images along a linear segment are also spaced apart.