Beverage Capsule Optical Code Support for Reliable Rotational Reading
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Solution Overview
Problem
Existing optical code supports on beverage capsules face challenges in reliable reading due to difficulties in discriminating light-reflecting and light-absorbing signals, especially in the harsh conditions of beverage preparation machines using centrifugal extraction, and are complex to integrate with the capsule packaging structure.
Innovation Solution
An optically readable code support with a base structure of continuous light-reflective surfaces and discontinuous discrete light-absorbing portions, optimized for easy integration into the capsule packaging, enhances signal readability by maintaining distinct reflectivity levels even under conditions of light loss and mechanical constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a barcode is printed on the capsule surface, then capsule identification is enabled, but the optical signal readability deteriorates under centrifugal extraction conditions
Solution Approach 1:
The code support is segmented into distinct light-reflecting portions and light-absorbing portions, creating clearly separated optical zones that enhance signal discrimination. The code support itself is a separate component that can be divided into functional segments for encoding information.
Solution Approach 2:
A dedicated code support structure acts as an intermediary carrier between the capsule and the reading arrangement. This intermediate element provides a stable, purpose-built platform for optical encoding that is optimized for machine reading, separating the identification function from the capsule packaging itself.
2Measurement precision
If a complex code support structure is used to improve signal readability, then optical signal discrimination is enhanced, but the integration complexity with capsule packaging increases
Solution Approach 1:
The code support is merged with existing capsule components such as the sealing flange or rim structure. By integrating the code support into already-present structural elements of the capsule, the system achieves enhanced optical readability without adding separate complex components.
Solution Approach 2:
The code support serves multiple functions: it provides structural support for the capsule sealing while simultaneously carrying the optical identification code. This multi-functionality reduces overall system complexity by combining identification and structural roles in a single element.
3Measurement precision
If light-absorbing materials are applied extensively on the capsule surface, then signal contrast is improved, but material usage and manufacturing complexity increase
Solution Approach 1:
Light-absorbing materials are applied only in specific local areas where code definition is required, rather than extensively across the entire capsule surface. This localized application maintains signal contrast while reducing material consumption and manufacturing complexity.
Solution Approach 2:
Instead of applying light-absorbing material uniformly or excessively, the solution uses partial action by applying the material only to the extent necessary for creating distinguishable code patterns, achieving sufficient contrast with minimal material and processing.
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
The solution improves the readability of the optical signal and simplifies integration into the capsule structure, enabling robust and reliable code reading during capsule rotation in beverage preparation machines.
Implementation Method 1
the binary symbols are essentially formed of light reflective surfaces (400-403) and light absorbing surfaces (410-414)
Implementation Method 2
said discrete light-absorbing portions (410-414) are arranged to provide a lower light-reflectivity than the one of the base structure
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3c
AI summary
An optically readable code support (30) to be associated with or be part of a capsule indented for delivering a beverage in a beverage producing device by centrifugation of the capsule, the support comprising at least one sequence of binary symbols represented on the support so that each symbol is sequentially readable by a reading arrangement of an external reading device while the capsule is driven in rotation along an axis of rotation, wherein the binary symbols are essentially formed of light reflective surfaces (400-403) and light absorbing surfaces (410-414). The code support preferably comprises a base structure (500) extending continuously at least along said sequence of symbols and discontinuous discrete light-absorbing portions (528) locally applied onto or formed at the surface of said base structure; wherein the discontinuous discrete light-absorbing portions form the light- absorbing surfaces and the base structure (500) forms the light-reflective surfaces (400-403) outside the surface areas occupied by the discrete light-absorbing portions; said discrete light-absorbing portions (410-414) are arranged to provide a lower light-reflectivity than the one of the base structure outside the surface areas occupied by the discrete light-absorbing portions.