Flow Meter Portion Pack Detection in Beverage Machines
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Solution Overview
Problem
Existing beverage preparation machines with capsule recognition modules are technically complex and expensive, necessitating a simpler and cost-effective method to detect portion packs and track beverage preparations.
Innovation Solution
Incorporating a flow meter and pump system that measures liquid delivery volume and flow rate to differentiate between states with and without a portion pack inserted, using machine electronics to evaluate these measurements and control the brewing process, thereby detecting the presence of a portion pack and counting beverage preparations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a capsule recognition module is used to detect portion packs, then the ability to identify and track beverages is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the detection function from a complex optical recognition module and implements it through a simplified flow measurement system. By measuring liquid flow characteristics through the brewing chamber, the system detects portion pack presence without requiring expensive optical sensors, cameras, or code reading mechanisms.
Solution Approach 2:
The patent replaces mechanical/optical recognition systems with a fluid dynamics-based detection method. Instead of using mechanical sensors or optical scanners to detect portion packs, the system uses flow meter measurements of liquid movement to infer the presence and type of portion pack, substituting a simple mechanical measurement for a complex recognition system.
2Adaptability or versatility
If optical code reading is implemented for beverage tracking, then inventory management capability is improved, but the manufacturing cost increases
Solution Approach 1:
The patent makes the flow meter serve multiple functions: it simultaneously controls the brewing process by regulating water flow and detects portion pack presence for inventory tracking. This multi-functionality eliminates the need for separate detection hardware, reducing manufacturing costs while maintaining inventory management capabilities.
Solution Approach 2:
The system uses the existing brewing process itself to generate detection data. As water flows through the brewing chamber during normal operation, the flow meter automatically records characteristics that reveal portion pack information, eliminating the need for separate scanning or reading operations.
3Manufacturing precision
If a flow meter is used to measure liquid delivery, then beverage preparation control is improved, but the device complexity increases
Solution Approach 1:
The patent combines the flow measurement function with the existing brewing control system. The flow meter is integrated into the water delivery mechanism, and its measurements are used both to control brewing parameters and to detect portion pack presence, merging two functions into a single system component.
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
This approach allows for accurate detection of portion packs without increasing the machine's complexity or cost, enabling effective tracking of beverage preparations for inventory management and loyalty programs while preventing false counting of unprepared beverages.
Implementation Method 1
a flow meter which is arranged on the liquid line leading via the pump into the brewing chamber such that it - directly or indirectly - can measure a delivery volume of the liquid delivered into the brewing chamber
Data Source
Figure 1~2
Figure 3~4
AI summary
The beverage-preparation machine has a pump (5) for pumping the preparation liquid, generally water, into a brewing chamber which receives the portion pack (20) and a flow meter (3) for measuring the flow of liquid into the brewing chamber. An electronic machine unit (9) controls the pump (5) and detects the results of the flow measurement in order to deactivate the pump after a specified amount of liquid has been pumped for example. According to one aspect of the invention, the electronic unit (9) is designed to analyze the measured flow and draw a distinction between a first state, "brewing with inserted portion pack," and a second state, "water flow without an inserted portion pack," in order to detect the presence of a portion pack (20) in the brewing chamber.