Gas stove control method and gas stove

Abstract

The invention discloses a gas stove control method and a gas stove. The gas stove control method includes the steps of obtaining a cookware image through a camera; determining the type of cookware andthe color of the cookware according to the acquired cookware image; obtaining the emissivity value of the cookware and the inside and outside temperature difference value according to the type of thecookware and the color of the cookware; determining the temperature of the outer surface of the cookware according to the emissivity value; and determining the temperature of the inner surface of thecookware according to the temperature of the outer surface of the cookware and the inside and outside temperature difference value of the cookware. According to the gas stove control method, the temperature of the cookware can be accurately measured, and then the temperature of the cookware can be accurately controlled.

Description

technical field [0001] The invention relates to the technical field of gas stoves, in particular to a control method of a gas stove and the gas stove. Background technique [0002] The temperature measuring device used in the anti-dry burning application in the existing gas stove is a contact temperature sensor such as a thermocouple or a thermistor. The bottom of the pot touches. The heat is transferred from the bottom of the pot to the temperature measuring device through heat conduction, and poor contact will cause large errors. In order to avoid direct heating of the temperature measuring device by the high-temperature flame, causing large errors, the burner needs to be specially designed, and the design is limited. [0003] Existing infrared temperature measurement solutions for gas stoves have serious problems, and the accuracy of temperature measurement is greatly affected by the emissivity of the bottom of the pot. Existing infrared temperature measurement schemes...

AI Technical Summary

Problems solved by technology

The emissivity of different pot bottom materials is different. For example, the infrared emissivity of black cast iron and bright stainless steel materials is quite different. Ordinary infrared temperature measuring devices (one band) cannot accurately measure the temperature of commonly used pots at the same time.

[0005] Different pots have different temperature differences between the inner and outer surfaces of the pot. For example, a thin stainless steel pot has a small temperature difference between the inner and outer surfaces, and a double-bottomed pot and casserole have a large temperature difference between the inner and outer surfaces. Therefore, even after correcting the emissivity, only the temperature of the outer surface of the pot can be guaranteed. The temperature is accurate, the accuracy of the inner surface cannot be guaranteed

[0006] Due to the inability to achieve accurate temperature measurement, the temperature measuring device used in the existing gas stove with infrared temperature measurement function intelligently realizes the anti-dry function, that is, when the temperature of the pot is detected to be too high and reaches the dry temperature, an alarm will sound Or close the valve, it is impossible to accurately measure the temperature, so it is impossible to achieve accurate temperature control

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