Hob and method for heating a cooking vessel on a hob
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Solution Overview
Problem
Existing methods for heating cooking vessels on hobs lack efficient and reliable identification and assignment of smart cooking vessels with temperature sensors, leading to potential errors in energy transmission and temperature regulation.
Innovation Solution
A method where each heating device generates and transmits energy in a specific pattern, and a cooking vessel with a temperature sensor and evaluation device sends identification and temperature data, allowing a controller to perform plausibility checks to accurately assign the vessel to a heating device based on temperature changes and energy ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature sensor with radio interface is integrated into the cooking vessel, then temperature detection capability is improved, but device complexity increases
Solution Approach 1:
The temperature sensor, evaluation device, and transmitting device are integrated within the cooking vessel, creating a nested structure where measurement and communication components are embedded inside the vessel body. This allows the vessel to function both as a cooking container and as an intelligent sensing unit.
Solution Approach 2:
The cooking vessel performs self-measurement of temperature through its integrated sensor and self-communication by transmitting data autonomously. The evaluation device processes temperature readings and the transmitting device sends data without requiring external intervention, enabling the vessel to serve its own measurement and communication needs.
2Reliability
If plausibility checks based on energy-to-temperature ratios are performed, then assignment reliability is improved, but measurement precision requirements increase
Solution Approach 1:
The system performs plausibility checks by comparing the ratio of transmitted energy to measured temperature change against expected ranges. This feedback mechanism verifies whether the cooking vessel is correctly assigned to a heating device by checking if the observed temperature response is consistent with the applied energy input, thereby improving assignment reliability.
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
Ensures reliable recognition and assignment of smart cooking vessels, preventing errors in energy transmission and enabling precise temperature regulation for automatic cooking programs.
Implementation Method 1
Each heating device is designed to generate and transmit energy, is designed to heat a cooking vessel arranged above it
Data Source
Figure 1~2
Figure 3
AI summary
A method for heating a cooking vessel on a cooktop with multiple heating elements is described. Each heating element has a heating zone in which a cooking vessel can be placed to be heated by the heating element via a power supply. The cooking vessel has a temperature sensor with an evaluation device and a transmitter for sending identification and temperature data. A controller operates the heating element in a specific manner and evaluates the received temperature data with several plausibility checks to determine whether it is consistent with the operation of the heating element. If these plausibility checks are passed, the cooking vessel is assigned to the heating element.