Adaptive thermal control for a cooking system
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Solution Overview
Problem
Traditional cooking techniques and automated systems face challenges in maintaining precise temperature control, especially in fluctuating environments, leading to inefficiencies and suboptimal cooking results.
Innovation Solution
A cooking system that includes a heat source and processors to dynamically adjust energy based on current and requested temperatures, using gain constants and terms to calculate energy adjustments, accounting for heat loss and environmental fluctuations, ensuring precise temperature control and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional manual cooking techniques are used, then the system is simple to operate, but temperature control precision deteriorates
Solution Approach 1:
The patent implements a feedback control system using a temperature sensor to continuously monitor the cooking surface temperature and adjust the heating element power accordingly. The processor compares the measured temperature with the target temperature and dynamically modifies the energy output to maintain precise temperature control, resolving the contradiction between simplicity and precision by automating the feedback loop.
Solution Approach 2:
The system performs self-regulation of temperature through automated control algorithms that adjust heating power based on real-time temperature measurements. The controller independently manages the heating element without requiring manual intervention, achieving precise temperature control while maintaining ease of operation through a user-friendly interface.
2Measurement precision
If automated temperature control is implemented, then temperature control precision improves, but responsiveness to temperature changes deteriorates
Solution Approach 1:
The patent employs dynamic control parameters that adapt based on the current cooking state. The system adjusts control gains and response thresholds dynamically during the cooking process, allowing rapid response when temperature deviations occur while maintaining stability during steady-state cooking. This resolves the contradiction by making the system both responsive and precise at different operational phases.
Solution Approach 2:
The system combines multiple control strategies (proportional, integral, and derivative control) into a unified PID control algorithm that simultaneously addresses precision and responsiveness. The merged control approach balances immediate temperature corrections with long-term stability, achieving both rapid response to changes and precise temperature maintenance.
3Stability of the object's composition
If adaptive control with multiple gain constants is used, then stability in fluctuating environments improves, but device complexity increases
Solution Approach 1:
The patent implements adaptive control by dynamically adjusting control parameters (gain constants) based on the cooking state and environmental conditions. The system monitors temperature fluctuations and modifies the proportional, integral, and derivative gains accordingly, maintaining optimal stability across varying cooking scenarios. This parameter adaptation resolves the contradiction by achieving high stability without requiring a fundamentally complex system architecture.
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 achieves rapid temperature stabilization, minimizes overshooting and undershooting, and maintains consistent cooking conditions, even in adverse environments, enhancing the cooking process for delicate proteins and varied cooking methods.
Implementation Method 1
a heat source operable to provide an amount of energy to be used to cook a food item
Implementation Method 2
receive an indication of a current temperature associated with the food item
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
According to one example, a system includes a heat source operable to provide an amount of energy to be used to cook a food item, and further includes one or more processors. The processors are operable to receive an indication of a requested cooking temperature, and to receive a plurality of indications of measured temperature associated with the food item at different times. The processors are further operable to determine an integral term based on differences between the requested cooking temperature and the measured temperatures, to determine a heat loss term based on the integral term, and to determine an energy adjustment based on the heat loss term. The heat source is further operable to modify the amount of energy provided by the heat source in accordance with the determined energy adjustment.