Beverage maker, and method and device for controlling beverage brewing process
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Solution Overview
Problem
Current beverage makers, such as coffee and soybean milk makers, suffer from inaccuracy in beverage output quantity due to the influence of filling and pressurizing stages during the brewing process.
Innovation Solution
A method and device that utilize a flowmeter to determine when the brewing unit enters a pressure maintenance stage, triggering accurate measurement of the beverage output quantity by stopping water supply once the target quantity is reached, without additional measurement members, using a pressurizing member and a flowmeter on the water supply pipe to stabilize pressure and measure rotational speed changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If water supply is started immediately upon receiving the start signal, then the brewing process can begin, but the beverage output quantity measurement becomes inaccurate due to filling and pressurizing stages
Solution Approach 1:
The system performs preliminary actions (filling and pressurizing) before the actual brewing and measurement stages. By detecting the inflection point in flowmeter rotational speed, the system identifies when the preliminary actions are complete and the pressure maintenance stage begins, ensuring accurate measurement only during the stable brewing phase.
Solution Approach 2:
The system uses feedback from the flowmeter's rotational speed changes to determine when to start measurement. By monitoring the inflection point where rotational speed transitions from decreasing to increasing, the system dynamically adjusts the measurement start time, ensuring accuracy while maintaining brewing efficiency.
2Measurement precision
If the flowmeter rotational speed is monitored continuously to detect the pressure maintenance stage, then measurement accuracy improves, but the system complexity increases
Solution Approach 1:
The flowmeter serves dual purposes: it measures water flow for quantity calculation and simultaneously provides feedback through its rotational speed changes to indicate process stages. This self-service approach eliminates the need for separate pressure sensors or additional detection devices, reducing system complexity while maintaining high measurement precision.
Solution Approach 2:
The existing flowmeter is made multi-functional by utilizing its rotational speed characteristics not only for flow measurement but also for process stage detection. This universal use of the flowmeter avoids adding extra measurement members, keeping the device simple while achieving accurate beverage quantity control.
3Measurement precision
If additional measurement members are added to detect pressure maintenance stage, then measurement accuracy improves, but the device complexity and cost increase
Solution Approach 1:
The flowmeter serves dual purposes: it measures water flow for quantity calculation and simultaneously provides feedback through its rotational speed changes to indicate process stages. This self-service approach eliminates the need for separate pressure sensors or additional detection devices, reducing system complexity while maintaining high measurement precision.
Solution Approach 2:
The existing flowmeter is made multi-functional by utilizing its rotational speed characteristics not only for flow measurement but also for process stage detection. This universal use of the flowmeter avoids adding extra measurement members, keeping the device simple while achieving accurate beverage quantity control.
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 improves the accuracy of beverage output quantity measurement by avoiding the inaccuracies of filling and pressurizing stages, ensuring precise quantity control using the existing flowmeter, enhancing the overall brewing process reliability.
Implementation Method 1
obtaining state change information of the flowmeter, where the state change information is configured to indicate a rotational speed change trend of the flowmeter
Implementation Method 2
a pressurizing member for generating pressure in the brewing unit in the beverage brewing process
Data Source
AI summary
Disclosed in the present disclosure are a beverage maker, and a method and device for controlling a beverage brewing process, which belong to the field of small household appliances. A brewing unit of the beverage maker includes a pressurizing member for generating pressure in the brewing unit in the beverage brewing process, and a pipe supplying water to the brewing unit is provided with a flowmeter. The method includes: supplying water to the brewing unit in response to a start signal of current beverage brewing, and obtaining state change information of the flowmeter, where the state change information is configured to indicate a rotational speed change trend of the flowmeter in a current beverage brewing process.