Capsule Detection in Hot Beverage Machines to Block Non-Original Pods
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Solution Overview
Problem
Existing beverage extraction machines face issues with the use of non-original capsules leading to reduced beverage quality and potential machine damage due to improper capsule fitting and detection.
Innovation Solution
A machine equipped with a detection system using contact elements that intercept specific protruding surfaces on the capsule to send enabling signals to the control unit, ensuring only original capsules are used, preventing the extraction process if non-original capsules are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a detection system with contact elements is added to detect capsule authenticity, then capsule authenticity detection capability is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex optical or electronic detection systems with a simple mechanical detection system using contact elements that physically interact with the capsule's protruding surfaces. This mechanical approach achieves reliable authenticity detection while minimizing device complexity
Solution Approach 2:
The capsule itself provides the detection signal through its own geometric features (protruding surfaces). The contact elements simply detect these pre-existing features without requiring additional active components, sensors, or power sources, making the detection system self-activating and simple
2Reliability
If contact elements are positioned to intercept protruding surfaces on the capsule, then detection reliability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The capsule incorporates asymmetric protruding surfaces that serve as unique geometric identifiers. This asymmetric design allows the detection system to reliably distinguish authentic capsules through simple geometric recognition, improving detection reliability while the standardized asymmetric pattern actually simplifies manufacturing compared to custom-fit detection for each capsule variation
Data Source
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AI summary
Described is a machine for preparing and extracting a hot beverage from a capsule (1) comprising a load-bearing frame (6) having an inlet opening (7) for the capsule (1); a first fixed extraction unit (8) comprising a matching housing (9) for the capsule (1); a second extraction unit (11) movable along a linear trajectory (T), in both directions, between a first non-operating end position away from the first unit (8), and a second operating end position wherein the second movable unit (11) is moved towards the first fixed unit (8) in such a way as to move the capsule (1) from an inlet position to a position for inserting in the housing (9) in the first fixed unit (8) for extracting the beverage by feeding a pressurised hot fluid; a command and control unit (12) configured to activate/deactivate the pressurised fluid for extracting the beverage; a device (13) for detecting the capsule (1), positioned on the first fixed extraction unit (8), configured to intercept an outer surface (2a, 2b) of the capsule body (2) when it is inserted in the housing of the first extraction unit (8); the detection device (13) is connected to the control unit (12) and configured to send at least one corresponding enabling signal for the activation of the pressurised fluid by the control unit (12).