Coffee Machine Descaling with Usage-Based Agent Allocation
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Solution Overview
Problem
Coffee machines with multiple fluid lines often waste descaling agents due to uniform distribution methods, as lines may not be equally calcified, leading to inefficient and unsustainable decalcification processes.
Innovation Solution
A method where a detection device records parameters and transmits them to an evaluation/control device to dynamically allocate descaling agent proportions based on actual usage and calcification levels, ensuring each line receives the necessary amount, reducing waste and ensuring long-term flawless decalcification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pre-defined constant amount of descaling agent is allocated to each fluid line, then all lines are guaranteed to receive sufficient descaling treatment, but descaling agent is wasted on lines with little or no limescale buildup
Solution Approach 1:
The patent applies local quality by allocating different proportions of descaling agent to different fluid lines based on their individual limescale buildup characteristics. The control device determines specific proportions for each line based on usage parameters, ensuring that lines with heavier scaling receive more agent while lines with minimal scaling receive less, thereby eliminating uniform waste across all lines.
Solution Approach 2:
The patent implements dynamics by making the descaling agent allocation proportional and variable rather than fixed. The control device dynamically adjusts the proportion of descaling agent allocated to each fluid line based on recorded usage parameters, allowing the system to adapt to changing scaling conditions over time and optimize agent distribution continuously.
2Loss of substance
If descaling agent is allocated based on actual usage parameters, then descaling agent usage is optimized and waste is reduced, but the system complexity increases due to detection and control requirements
Solution Approach 1:
The patent applies self-service by enabling the coffee machine to automatically monitor its own fluid line usage parameters and autonomously determine the optimal descaling agent allocation proportions. The control device uses internally recorded data about fluid line usage to self-adjust the descaling process without requiring external intervention or complex external detection systems.
Solution Approach 2:
The patent implements universality by using the existing control device in the coffee machine for multiple functions: it not only controls normal coffee preparation operations but also performs descaling parameter determination and agent allocation. This multi-functionality avoids adding separate dedicated detection and control systems, thereby limiting the increase in overall device complexity.
3Reliability
If larger proportions of descaling agent are allocated to heavily scaled lines, then effective descaling is achieved for high-usage lines, but the total descaling time and energy consumption increase
Solution Approach 1:
The patent applies parameter changes by adjusting the concentration and proportion of descaling agent applied to each fluid line based on their individual scaling levels. Heavily scaled lines receive higher proportions of descaling agent while lightly scaled lines receive lower proportions, optimizing the chemical action on each line separately and reducing the total time required for effective descaling of the entire system.
Data Source
Figure 1
AI summary
The invention relates to a method for descaling a coffee machine (1) comprising a fluid system (2) with at least two fluid lines (2a, 2b), a detection device (3) and an evaluation/control device (4) and in which routine descaling is carried out, wherein the detection device (3) and the evaluation/control device (4) are connected for data transmission, wherein relevant parameters for descaling the fluid system (2), in particular the two fluid lines (2a, 2b), are detected by a detection device (3) and transmitted to an evaluation/control device (4).The evaluation/control unit (4) uses the parameters relevant for descaling to assess the proportions of routine descaling and determines which first proportion is allocated to a first fluid line (2a) of the at least two fluid lines (2a, 2b) and which second proportion is allocated to a second fluid line (2b) of the at least two fluid lines (2a, 2b). The invention also relates to a correspondingly configured and programmed coffee machine (1) and a computer program product comprising corresponding commands.