Peripheral Capsule Barcode Layout for Insertion-Time Recognition
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Solution Overview
Problem
Existing beverage preparation machines struggle with automatic capsule recognition due to costly and complex detection systems, such as shape, magnetic, color, and RFID technologies, which require significant manufacturing investments and are not aesthetically compatible with compact in-home designs, especially when trying to print barcodes on capsules with limited surface space.
Innovation Solution
A beverage preparation system featuring a capsule with a linear barcode printed along its peripheral path, allowing a compact machine to read the code without orientation dependency, using a linear barcode reader that can detect the code during insertion, enabling efficient and cost-effective automatic recognition of capsule types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If expensive detection systems (shape, magnetic, color, RFID sensors) are used for capsule recognition, then recognition reliability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent uses a printed barcode (optical copy) instead of complex magnetic, RFID, or color sensor systems. The barcode is a simple visual representation of capsule information that can be read by a basic optical reader, replacing expensive and complex detection systems with a simple optical copying method.
Solution Approach 2:
The patent employs a disposable printed barcode on the capsule instead of expensive reusable sensors. The barcode is a low-cost, single-use information carrier that eliminates the need for costly detection hardware in both the capsule and the machine.
2Ease of manufacture
If a linear barcode reader is used instead of complex detection systems, then manufacturing cost is reduced, but reading capability may be limited by capsule orientation
Solution Approach 1:
The patent transitions from traditional linear barcodes to a circular/annular barcode configuration. By arranging barcode elements in a circular pattern around the capsule periphery, the system enables reading from any rotational orientation, adding dimensional flexibility to the barcode structure.
Solution Approach 2:
The circular barcode design provides universal reading capability across all capsule orientations. A single barcode configuration can be read regardless of how the capsule is positioned or rotated, making the system universally adaptable without requiring multiple specialized readers.
3Shape
If barcode is printed on limited capsule surface area, then capsule design is maintained, but barcode reading reliability may be compromised
Solution Approach 1:
The patent uses a circular/annular barcode arrangement that efficiently utilizes the limited capsule surface area. By distributing barcode elements around the periphery in a circular pattern, the design maximizes the use of available space while maintaining adequate spacing and size for reliable optical reading.
Data Source
AI summary
A beverage preparation system comprising: (i) a capsule (1 1) 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 (1 1), 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 (1 1) 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.