Device for measuring temperature
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing temperature measurement devices for cooking have limitations, such as contamination and inconvenience in use, especially when measuring high-temperature foods or requiring specific cooking environments, and lack flexibility in measuring various cooking containers and environments.
Innovation Solution
A device with an array sensor and controller that measures temperature changes and surface material emissivity, allowing for accurate temperature acquisition of cooking containers of different heights and materials, and can operate independently of cooking appliances, using machine learning to estimate load states and temperatures in various environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a contact-type temperature measurement device is used to measure food temperature, then measurement precision is improved, but the device is contaminated with food and requires cleaning
Solution Approach 1:
The patent introduces a cooking container as an intermediary object to measure food temperature indirectly. The container's bottom surface temperature is measured using a non-contact infrared sensor, and this temperature serves as a proxy for the food temperature through pre-stored correlation data, eliminating direct contact between the measurement device and food
Solution Approach 2:
The patent replaces the mechanical contact-based temperature measurement system with an optical/infrared non-contact measurement system. The infrared sensor detects thermal radiation from the container bottom surface without physical contact, substituting the mechanical probe system
2Measurement precision
If a probe-type temperature measurement device is used to measure high-temperature food, then measurement precision is improved, but the device is at risk of damage
Solution Approach 1:
The cooking container acts as an intermediary that protects the temperature measurement device from high-temperature food damage. The infrared sensor measures the container bottom surface temperature, which is thermally coupled to the food but at a lower temperature than direct food contact would expose the sensor to
Solution Approach 2:
The patent replaces the mechanical probe system vulnerable to high-temperature damage with a non-contact infrared optical system that can measure temperatures without being exposed to the harsh thermal environment
3Ease of operation
If a non-contact temperature measurement device is provided in the cooking appliance, then ease of operation is improved, but adaptability to various cooking containers is limited
Solution Approach 1:
The system automatically identifies the cooking container type through image recognition technology and self-adjusts the temperature correlation data accordingly. The device performs container type detection and parameter adjustment without user intervention, adapting to different container heights, materials, and shapes
Solution Approach 2:
The patent creates a universal temperature measurement system that can measure temperatures for various types of cooking containers (pots, pans, bowls of different heights) using a single non-contact device. The system achieves multi-functionality by combining infrared sensing with image recognition and database correlation
4Ease of operation
If a non-contact temperature measurement device measures cooking container temperature, then ease of operation is improved, but measurement precision of food temperature is reduced
Solution Approach 1:
The cooking container bottom surface serves as an intermediary measurement target that provides accurate indirect information about food temperature. The infrared sensor measures the container bottom temperature, which is thermally coupled to the food, and this intermediate measurement is more accurate than direct non-contact food measurement
Solution Approach 2:
The system uses pre-stored correlation data between container bottom temperature and food temperature to calculate the actual food temperature. This feedback mechanism through stored empirical relationships compensates for the indirect measurement and restores measurement 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
Enables accurate temperature measurement of cooking loads in diverse environments and cooking containers, reducing contamination risks and improving usability by providing a flexible, accurate, and user-friendly solution for temperature monitoring.
Implementation Method 1
at least one array sensor configured to measure a temperature of at least a portion of a surface of an object to be heated
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present disclosure provides an induction heating-type cooktop that determines whether a cooking container is boiling regardless of various variables such as an amount of water and a material of the container. The induction heating-type cooktop may include an upper plate on which a cooking container is disposed, a working coil that generates magnetic fields passing through the cooking container, an inverter that supplies current to the working coil, a sensor that detects a temperature of the cooking container, a controller that determines whether the cooking container is boiling. The controller may determine whether the cooking container is boiling by applying input data obtained from the sensor and the inverter to a boiling prediction model.