Induction Hob Pot Positioning via Dynamic Signal Frequency
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Solution Overview
Problem
Existing cooking systems with surface induction hobs face challenges in automatically detecting pot positions and optimizing energy usage, leading to inconvenient battery replacements and increased energy consumption during cooking processes.
Innovation Solution
A cooking system that uses electromagnetic signals to encode assignment signatures for induction devices, allowing for automatic pot positioning and optimizing data transmission based on cooking modes and energy states, reducing energy consumption and extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If electromagnetic signals are transmitted intermittently for pot detection and communication, then automatic pot positioning and data transmission are enabled, but energy consumption increases and battery life decreases
Solution Approach 1:
The transmitting device emits electromagnetic signals intermittently rather than continuously, using periodic transmission cycles with adjustable frequencies. The system adapts the transmission frequency based on operational context - higher frequency during active cooking when pots are present, lower frequency during idle periods - thereby enabling automatic pot detection while significantly reducing overall energy consumption compared to continuous transmission.
2Reliability
If electromagnetic signals are transmitted continuously for reliable pot detection, then detection reliability is improved, but energy consumption increases
Solution Approach 1:
The signal transmission frequency is made dynamic rather than static. The system automatically adjusts the transmission frequency based on detected conditions - increasing frequency when pots are detected or during active cooking phases to maintain reliable detection, and decreasing frequency during idle periods when no pots are present. This dynamic adaptation ensures detection reliability is maintained only when necessary, optimizing the balance between reliability and energy consumption.
3Ease of operation
If battery-powered receiving devices are used in kitchen utensils, then portability and ease of use are improved, but frequent battery replacement is required
Solution Approach 1:
The system changes the transmission parameter frequency based on operational state. During active cooking with pots present, transmission frequency is higher to ensure reliable communication. During idle periods without detected pots, transmission frequency is reduced or suspended entirely. This parameter adaptation extends battery life by minimizing transmissions during periods when communication is unnecessary, while maintaining portability through continued use of battery-powered receiving devices.
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 enables reliable automatic pot positioning and reduces energy consumption by optimizing data transmission frequency, extending battery life and minimizing the need for frequent replacements.
Implementation Method 1
At least one transmitting device emits at least one electromagnetic signal at least intermittently, which signal is received by the receiving device of the kitchen utensil
Implementation Method 2
at least two induction devices for heating the kitchen utensil placed on the placement surface
Data Source
AI summary
A method for operating a cooking system includes: providing at least one cooking hob device, at least one kitchen utensil, and at least one evaluation device, the cooking hob device including at least one placement surface on which to place kitchen utensils and at least one generator device having at least two induction devices for heating the kitchen utensil placed on the placement surface, and the kitchen utensil being heatable by at least one induction device; assigning at least one transmitting device to each of the at least two induction devices of the cooking hob device, the kitchen utensil including at least one receiving device, each transmitting device of the at least one transmitting device emitting at least one electromagnetic signal, at least intermittently, which signal is received by the receiving device of the kitchen utensil when the kitchen utensil is heated by the corresponding induction device.