Induction Cooktop Pot Position Detection and Feedback

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Solution Overview

Problem

Flexible induction cooktops can lead to suboptimal cooking results when pots are placed too close together, sharing induction coils and operating at different power settings, which complicates user interaction and reduces efficiency.

Innovation Solution

A hob device with a detection system comprising an evaluation device and signaling device that detects pot positions and emits a simple signal if pots are too close or share induction coils, allowing users to optimize their placement without specific instructions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a large number of induction coils are distributed uniformly over the hob to enable flexible cooking, then adaptability is improved, but the risk of suboptimal cooking results increases when pots are placed too close together

Engineering Contradiction:
Improveflexible cooking zone configurationVSAvoidcooking result quality
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system continuously monitors pot positions using detection devices and provides real-time feedback to users through visual or acoustic signals when pots are placed too close together. This feedback loop enables users to adjust pot positions to avoid sharing induction coils, thereby maintaining cooking quality while preserving the flexibility of the hob configuration.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system proactively informs users about potential suboptimal pot placement before cooking begins or during the cooking process. By detecting pot positions and issuing warnings in advance, the system prevents suboptimal cooking conditions from occurring, allowing users to reposition pots before they affect cooking results.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If systems display or specify flexible cooking zones to avoid suboptimal placement, then cooking result quality is improved, but device complexity increases

Engineering Contradiction:
Improvecooking result qualityVSAvoidsystem construction complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system extracts only the essential information needed for optimal pot placement - specifically, warnings when pots are too close together - rather than displaying complete cooking zone configurations or providing comprehensive instructions. This selective information approach maintains cooking quality while minimizing system complexity and user cognitive load.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system uses simple, inexpensive detection devices and signaling mechanisms (such as basic sensors and LED indicators or simple acoustic signals) rather than complex display systems or sophisticated user interfaces. This approach achieves the goal of guiding proper pot placement while keeping the system simple and cost-effective.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Reliability

If the system provides precise instructions to users about optimal pot placement, then cooking result quality is improved, but ease of operation decreases

Engineering Contradiction:
Improvecooking result qualityVSAvoiduser interaction simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system provides only the essential warning signal when pots are placed too close together, without offering detailed instructions, explanations, or multiple guidance options. This minimalistic approach maintains cooking quality by alerting users to problems while preserving ease of use by avoiding information overload.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system enables users to self-correct their pot placement by providing simple warnings rather than prescriptive instructions. Users independently decide how to respond to the warnings based on their own judgment and cooking needs, maintaining both cooking quality and operational simplicity.

Inventive Principle:
Principle #25Self-service

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

The system informs users about suboptimal pot placement, enabling them to adjust for improved cooking efficiency without overwhelming them with complex instructions, thus enhancing the usability and effectiveness of the cooktop.

Implementation Method 1

a hob device with at least one hob (2) that includes a large number of induction coils (3)

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

At least one detection device (4) is provided, which includes at least one evaluation device (5) and at least one signaling device (6)

Methodology Applied
Scientific EffectInductive detection: Electromagnetic Induction

Data Source

PatentEP2988573B1Cooking field device, and method for operating the same
Publication Date: 2017.07.26 MIELE & CO KG
  • EP2988573B1 patent drawingFigure 1~3
  • EP2988573B1 patent drawingFigure 4~5

AI summary

Cooktop device (1) and method for operating a cooktop device (1) with a cooktop (2) comprising a plurality of induction coils (3) which are arranged substantially uniformly over the cooktop (2), wherein a detection device (4) is provided which includes an evaluation device (5) and a signaling device (6). The evaluation device (5) is suitable and configured to detect pot positions (7, 8, 9, 10, 11) on the cooktop (2) and to output a signal (12) via the signaling device (6) when at least a predetermined minimum distance (13) between at least two pot positions (7, 8, 9, 10, 11) is not maintained. If a minimum distance between two pot positions is not maintained, a signal is output.