Core Temperature Sensor Angle Detection for Precise Cooking Control
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Solution Overview
Problem
Existing cooking technologies face challenges in accurately determining the core temperature of food due to imprecise placement of core temperature sensors, leading to suboptimal cooking results, especially in varying food shapes and sizes.
Innovation Solution
A method to determine the piercing angle of a core temperature sensor with multiple temperature measurement points, allowing for precise calculation of the penetration angle based on temperature rise over time, which is used to control the cooking process and improve cooking accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If core temperature sensor is inserted into food to measure temperature, then cooking process can be controlled, but accurate determination of core temperature becomes difficult when sensor placement is imprecise
Solution Approach 1:
The lancet is divided into multiple temperature measurement points (at least three thermistors) arranged along its length. This segmentation allows the system to detect temperature gradients and calculate the actual core temperature even when the sensor placement is not perfectly accurate, resolving the contradiction between measurement precision and placement reliability.
Solution Approach 2:
The patent replaces the mechanical approach of precisely positioning a single temperature sensor with a computational approach. By using multiple temperature measurement points and applying thermokinematic calculations, the system substitutes complex mechanical positioning requirements with mathematical processing to determine core temperature accurately.
2Measurement precision
If positioning aids are used to ensure precise sensor placement, then measurement accuracy improves, but device complexity and user convenience deteriorate
Solution Approach 1:
The patent extracts the positioning function from the physical sensor design and transfers it to the evaluation algorithm. Instead of incorporating positioning aids into the sensor device itself, the system removes this requirement and achieves accurate core temperature determination through computational methods using temperature data from multiple points.
3Measurement precision
If multiple temperature measurement points are used to improve core temperature determination, then measurement accuracy improves, but device complexity increases
Solution Approach 1:
The lancet structure serves multiple functions: it acts as both the insertion tool and the temperature sensing element. The multiple temperature measurement points along the lancet not only detect temperature but also provide spatial information for calculating core temperature, making the device multi-functional without significantly increasing complexity.
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
This method enables more precise control of the cooking process, ensuring better cooking results by accurately determining the core temperature and thickness of food, even in varying shapes and sizes, by using the calculated piercing angle to adjust heat input and cooking time.
Implementation Method 1
a core temperature sensor with at least three temperature measurement points arranged on a lancet
Data Source
Figure 1~2
AI summary
The invention relates to methods for determining the angle of insertion of a core temperature sensor having a plurality of temperature measuring points in cooked food in order to control the cooking process, in which, starting from a time t2 following the insertion of the core temperature sensor into the cooked food, the insertion angle of the core temperature sensor into the cooked food is determined by using a measured rise in temperature over time of at least two temperature measuring points. The invention also relates to a control system for a cooking appliance for carrying out such a method, wherein the control system comprises a microprocessor and a memory for calculating the insertion angle, for carrying out a cooking process and for controlling a cooking appliance, and wherein the invention relates to a cooking appliance comprising such a control system and at least one core temperature sensor having a plurality of temperature measuring points, wherein the cooking appliance preferably comprises at least one hotplate, an induction hob, an oven, a hot air steamer, a steamer or a microwave oven.