Portion capsule with barcode

The patent applies preliminary action by equipping capsules with identification markings (barcodes, RFID tags, or optical patterns) before they are used in the coffee machine. The coffee machine's detection device reads these identifiers in advance to verify capsule compatibility and safety, preventing incompatible capsules from being processed. This pre-verification mechanism resolves the contradiction by maintaining versatility through standardized capsule forms while ensuring safety through proactive identification and validation.

The patent applies dimensionality change by moving the identification marking from the two-dimensional lid film surface to the three-dimensional outer wall surface of the capsule body. This relocation places the identifier in a more protected position that is less susceptible to damage during insertion and processing. The detection device is positioned to read the identifier on the outer wall, maintaining reliable identification while reducing the harmful effects of mechanical stress on the marking.

The patent applies universality by designing the detection device to perform multiple functions: it not only reads the identification marking for capsule verification but also integrates with the existing insertion mechanism and control system. The detection device can work with various types of identifiers (barcodes, RFID, optical patterns) and provides both compatibility verification and safety validation. This multi-functional approach improves capsule verification reliability while minimizing the increase in device complexity by leveraging existing structural elements.