Beverage Capsule 2D Barcode Layout for Orientation-Free Reading
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Solution Overview
Problem
Existing beverage capsule systems face challenges in reliable code reading due to convex surfaces, limited information capacity, and the need for precise capsule orientation, which complicates automation and user communication.
Innovation Solution
A two-dimensional barcode is placed on the capsule in a central location, allowing for reliable reading regardless of orientation and enabling more information storage, with a compact design that includes an inner opaque layer and outer transparent layer for protection and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a code is printed on the convex surface of the capsule, then the capsule can be identified, but the code becomes distorted and reading is negatively affected
Solution Approach 1:
The code is moved from the convex outer surface to the flat inner surface of the capsule's bottom wall, changing the dimensional context from external curved surface to internal flat surface, thereby eliminating distortion while maintaining identification functionality
Solution Approach 2:
The flat inner surface of the bottom wall acts as an intermediary surface that receives the code projection, mediating between the code printing process and the final readable code by providing a stable, flat substrate that prevents distortion
2Reliability
If the capsule is moved over a large path for code reading, then the code can be read reliably, but the reading process becomes complex and time-consuming
Solution Approach 1:
The capsule's own structure (flat inner bottom wall) provides the reading surface, eliminating the need for external mechanical positioning or movement mechanisms, thereby simplifying the reading process and reducing time loss
3Loss of information
If the code contains more information, then user communication is improved, but the code becomes more complex to read
Solution Approach 1:
The code transitions from traditional linear barcode to two-dimensional matrix code, utilizing both horizontal and vertical dimensions to encode information, thereby significantly increasing information capacity while maintaining machine readability through standardized matrix patterns
4Reliability
If mechanical elements are used to flatten the capsule surface, then the code can be read, but the capsule may rupture and mechanical friction increases
Solution Approach 1:
Instead of applying external mechanical force to flatten the capsule from the outside, the solution inverts the approach by utilizing the naturally flat inner surface of the bottom wall for code placement, thereby eliminating the need for mechanical flattening elements and their associated harmful effects
Data Source
Figure 1~2
Figure 2a~2b
Figure 2c~2d
AI summary
Method for providing information to a user from a capsule for the preparation of a beverage in a beverage producing device (20) comprising providing a capsule with a two-dimensional barcode (7) thereon, capturing at least one image of the barcode via a digital camera (42) and displaying decoded information from said image on a display (41).