Method for controlling a hot drink machine
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Solution Overview
Problem
Hot drinks machines, such as coffee machines, often start or remain in undefined states between brewing processes, leading to energy inefficiency, fluctuations in beverage quality, and safety risks due to unpredictable initial conditions.
Innovation Solution
A method to control hot drinks machines by determining and optimizing transition procedures between preparation steps, using parameters like heating power, temperature, and mechanical switching to ensure defined states and optimal starting conditions for subsequent processes, thereby managing energy use and component longevity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cooling is performed after each process step, then the system returns to a defined state, but energy is consumed and time is lost
Solution Approach 1:
The control device determines the subsequent preparation step in advance and plans the transition procedure accordingly. By knowing what will happen next, the system can prepare optimal transition parameters (heating, cooling, or idle) rather than reacting with fixed cooling sequences, thus avoiding unnecessary energy consumption while maintaining defined states.
Solution Approach 2:
The transition procedure is dynamically adapted based on the determined subsequent preparation step. The control device selects from multiple transition options (heating transition, cooling transition, or idle transition) depending on the specific requirements of the next step, making the system flexible rather than rigid in its state management.
2Use of energy by moving object
If nothing is done between processes, then energy is saved, but the system remains in an undefined state causing fluctuations in beverage quality
Solution Approach 1:
The control device determines the subsequent preparation step before the current step ends, allowing it to plan the appropriate transition procedure in advance. This preliminary determination ensures that the system will maintain process stability without unnecessarily consuming energy, as the transition is tailored to the specific needs of the next step.
Solution Approach 2:
The system changes physical parameters (temperature, heating power) based on the determined transition procedure. By adjusting these parameters dynamically according to the subsequent step requirements, the system maintains defined states and process stability while avoiding unnecessary energy consumption associated with fixed cooling cycles.
3Productivity
If heating power is increased to reach target temperature faster, then preparation time is reduced, but energy consumption increases
Solution Approach 1:
The heating power is dynamically adjusted based on the determined transition procedure and subsequent preparation step. Rather than using fixed high power settings, the system adapts the heating intensity to the specific requirements, reaching target temperatures efficiently without excessive energy consumption.
Solution Approach 2:
The control device monitors the actual temperature and compares it with the target temperature for the subsequent step, adjusting the heating power accordingly. This feedback mechanism ensures that heating is applied at the optimal level to reach the target temperature as quickly as possible without wasting energy on excessive heating.
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 enhances process stability, maintains consistent coffee quality, saves energy, and extends the service life of machine components while allowing for faster preparation times.
Implementation Method 1
a heating element for heating water, in particular a continuous-flow heater
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a method for controlling a hot beverage vending machine (1), comprising the steps: - selection of a hot beverage type (H), - preparation of a hot beverage based on this selection, wherein, during a current preparation step (Z1), the subsequent preparation step (Z2) is determined based on the selection, and the current preparation step (Z1) is terminated with a transition procedure (P) determined based on the subsequent preparation step (Z2). The invention further relates to a corresponding hot beverage vending machine.