Cookware Vibration Sensing for Boil-Dry Burner Control
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Solution Overview
Problem
Manual control of boiling operations in cooking appliances often leads to inefficiencies, such as over-boiling, energy wastage, and potential damage to cookware due to inadequate monitoring of boiling and boil-dry conditions.
Innovation Solution
A cooking sensor system that uses vibration sensors to detect and process signals from cookware on a burner assembly, indicating and controlling boiling and boil-dry conditions, thereby optimizing energy use and protecting cookware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If manual control of boiling operations is used, then ease of operation is maintained, but energy efficiency deteriorates due to excess energy usage from over-boiling
Solution Approach 1:
The system enables automatic boil and boil-dry detection through vibration sensors that monitor the cooking process independently, eliminating the need for continuous manual oversight while optimizing energy usage based on real-time detection of boiling conditions
Solution Approach 2:
The patent replaces manual visual and auditory monitoring with automated vibration-based sensing and signal processing systems that objectively detect boiling conditions, providing precise control without human intervention
2Reliability
If manual monitoring is used, then device complexity is reduced, but reliability deteriorates due to potential cookware damage from boil-dry conditions
Solution Approach 1:
The system continuously monitors vibration signals from the cookware and liquid, processes these signals to detect boiling conditions, and provides feedback through indicators or automatic control adjustments to prevent boil-dry damage to cookware
Solution Approach 2:
Vibration sensors serve as intermediaries between the heating element and cookware, detecting subtle changes in vibration patterns that indicate boiling conditions and enabling protective actions before damage occurs
3Measurement precision
If visual and auditory cues are used for detection, then measurement precision is insufficient, but device complexity remains low
Solution Approach 1:
The patent replaces subjective human sensory detection (visual and auditory) with objective vibration-based sensing systems that measure physical parameters of boiling, providing precise and repeatable detection of boiling conditions
Solution Approach 2:
The system detects changes in vibration frequency and amplitude parameters that occur during boiling, using signal processing to identify characteristic patterns that indicate boiling conditions with high precision
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 enhances control over boiling operations, reduces energy consumption, and minimizes cookware damage by accurately detecting and managing boiling and boil-dry conditions.
Implementation Method 1
detecting vibrations that correspond to cookware situated on a burner assembly; generating a vibration signal based on the vibrations
Data Source
AI summary
A method of boil and boil-dry detection for appliances. The method includes the steps: detecting vibrations that correspond to cookware situated on a burner assembly; generating a vibration signal based on the vibrations; and performing signal processing on the vibration signal. The method also includes the steps: collecting vibration data related to the vibration signal; and detecting boiling and boil-dry conditions for a liquid contained within the cookware based at least in part on an evaluation of the vibration data. The method may also include the steps: indicating the boiling and boil-dry conditions; and controlling the burner assembly based at least in part on the boiling and boil-dry conditions.