阅读说明：本技术 烹饪设备的控制方法、烹饪设备和计算机可读存储介质 (Control method of cooking apparatus, and computer-readable storage medium ) 是由 任祥喜 黄庶锋 王云峰 江德勇 郑量 佘艳 于 2020-05-29 设计创作，主要内容包括：本发明提出了一种烹饪设备的控制方法、烹饪设备和计算机可读存储介质。其中,烹饪设备包括电磁加热装置,烹饪设备的控制方法包括：获取电磁加热装置的谐振周期或谐振频率；根据谐振周期或谐振频率,控制电磁加热装置的加热功率。本申请根据谐振频率或谐振周期判断温度变化,从而自动控制电磁加热装置的加热功率,实现快速且有效地对温度进行调节,避免温度过高出现干烧现象,或者避免温度较低导致烹饪效果不理想。(The invention provides a control method of a cooking device, the cooking device and a computer readable storage medium. The cooking equipment comprises an electromagnetic heating device, and the control method of the cooking equipment comprises the following steps: acquiring the resonance period or the resonance frequency of the electromagnetic heating device; and controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency. This application judges temperature variation according to resonant frequency or resonance cycle to automatic control electromagnetic heating device's heating power realizes adjusting the temperature fast and effectively, avoids the high temperature phenomenon of dry combustion method to appear, perhaps avoids the temperature lower to lead to the culinary art effect unsatisfactory.)

1. A control method of a cooking apparatus, the cooking apparatus including an electromagnetic heating device, the control method of the cooking apparatus comprising:

acquiring the resonance period or the resonance frequency of the electromagnetic heating device;

and controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency.

2. The method for controlling a cooking apparatus according to claim 1, wherein the step of controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency specifically comprises:

based on the increase of the resonance period and the change rate of the resonance period being greater than a first period change rate threshold, reducing the heating power of the electromagnetic heating device; or

And based on the fact that the resonant frequency is reduced and the absolute value of the change rate of the resonant frequency is larger than a first frequency change rate threshold value, reducing the heating power of the electromagnetic heating device.

3. The method for controlling a cooking apparatus according to claim 2, wherein the step of controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency further comprises:

based on the resonance period decreasing and determining that the resonance period increases after the resonance period decreases, increasing the heating power of the electromagnetic heating device; or

Increasing the heating power of the electromagnetic heating device based on the increase of the resonance frequency and the determination of the decrease of the resonance frequency after the increase of the resonance frequency,

wherein a duration of the decrease in the resonance period or a duration of the increase in the resonance frequency is less than a first duration threshold.

4. The method for controlling a cooking apparatus according to claim 3, wherein the step of controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency further comprises:

based on the increase of the resonance period and the change rate of the resonance period being greater than a second period change rate threshold, reducing the heating power of the electromagnetic heating device; or

And based on the fact that the resonant frequency is reduced and the absolute value of the change rate of the resonant frequency is larger than a second frequency change rate threshold value, reducing the heating power of the electromagnetic heating device.

5. The method for controlling a cooking apparatus according to claim 4, wherein the step of controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency further comprises:

based on the reduction of the resonance period and the fact that the duration of the reduction of the resonance period is greater than a second duration threshold, increasing the heating power of the electromagnetic heating device; or

Based on the increase of the resonant frequency and the fact that the duration of the increase of the resonant frequency is greater than a second duration threshold, the heating power of the electromagnetic heating device is increased.

6. The method for controlling a cooking apparatus according to any one of claims 1 to 5, wherein the step of controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency specifically comprises:

reducing the resonance period from a preset value based on the fact that the resonance period is reduced and then recovering to the preset value within a preset time, and keeping the heating power of the electromagnetic heating device; or

And based on that the resonant frequency is increased from a preset value and is restored to the preset value within a preset time after the resonant frequency is increased, the heating power of the electromagnetic heating device is maintained.

7. The method for controlling a cooking apparatus according to any one of claims 1 to 5, wherein the step of controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency specifically comprises:

increasing from a preset value based on the resonance period, and recovering to the preset value within a preset time after the resonance period is increased, and keeping the heating power of the electromagnetic heating device; or

And based on that the resonant frequency is reduced from a preset value and is restored to the preset value within a preset time after the resonant frequency is reduced, the heating power of the electromagnetic heating device is maintained.

8. The control method of a cooking apparatus according to any one of claims 1 to 5, further comprising:

receiving a control instruction, wherein the control instruction comprises a target power;

and controlling the electromagnetic heating device according to the target power.

9. A cooking apparatus, characterized by comprising:

an electromagnetic heating device;

a memory storing a computer program;

a processor implementing a control method of a cooking apparatus as claimed in any one of claims 1 to 8 when executing the computer program.

10. A computer-readable storage medium, on which a computer program is stored, the computer program, when being executed by a processor, implementing a method of controlling a cooking apparatus according to any one of claims 1 to 8.

Technical Field

The invention relates to the technical field of cooking equipment, in particular to a control method of the cooking equipment, the cooking equipment and a computer readable storage medium.

Background

When a user cooks with the cooking equipment, the firepower needs to be adjusted manually, and the method is inconvenient and untimely to adjust and even risks of fire when the user forgets to turn off the fire. For example, in the process of heating a pot or hot oil, if a user washes or cuts vegetables, the pot is easily dried or the oil temperature is overheated, there is a risk of fire, and the cooking apparatus may be damaged.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, an aspect of the present invention is to propose a control method of a cooking apparatus.

Another aspect of the present invention is to provide a cooking apparatus.

Yet another aspect of the present invention is directed to a computer-readable storage medium.

In view of the above, according to an aspect of the present invention, there is provided a control method of a cooking apparatus, the cooking apparatus including an electromagnetic heating device, the control method of the cooking apparatus including: acquiring the resonance period or the resonance frequency of the electromagnetic heating device; and controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency.

According to the control method of the cooking equipment provided by the invention, in the heating process of the cooking equipment, the temperature change can cause the resistance and the inductance of the electromagnetic heating device to change, or the cooker is deformed due to overhigh temperature, and the resistance and the inductance also can change, so that the resonant frequency or the resonant period (the resonant period is the reciprocal of the resonant frequency) of the electromagnetic heating device changes. This application judges temperature variation according to resonant frequency or resonance cycle to automatic control electromagnetic heating device's heating power realizes adjusting the temperature fast and effectively, avoids the high temperature phenomenon of dry combustion method to appear, perhaps avoids the temperature lower to lead to the culinary art effect unsatisfactory.

The control method of the cooking device according to the present invention may further have the following technical features:

in the above technical solution, the step of controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency specifically includes: based on the increase of the resonance period and the change rate of the resonance period being greater than a first period change rate threshold, reducing the heating power of the electromagnetic heating device; or based on that the resonant frequency is reduced and the absolute value of the change rate of the resonant frequency is larger than the first frequency change rate threshold value, reducing the heating power of the electromagnetic heating device.

In the technical scheme, when the resonant period of the electromagnetic heating device is in an increasing trend and the change rate of the resonant period is greater than a first period change rate threshold, or when the resonant frequency of the electromagnetic heating device is in a decreasing trend and the change rate of the resonant frequency is greater than the first period change rate threshold, the temperature is indicated to rise faster, and at the moment, the heating power of the electromagnetic heating device is reduced to avoid overhigh temperature. For example, in the process of heating a pot, as the temperature rises, the resonance period tends to rise, and the resonance frequency tends to fall, and when the change curve of the resonance period reaches a certain slope or the change curve of the resonance frequency reaches a certain slope, the heating power is automatically reduced from the initial power, so that the damage of the cooking equipment caused by dry burning is avoided.

In any of the above technical solutions, the step of controlling the heating power of the electromagnetic heating apparatus according to the resonance period or the resonance frequency further includes: determining that the resonance period is increased based on the reduction of the resonance period and after the reduction of the resonance period, and increasing the heating power of the electromagnetic heating device; or increasing the heating power of the electromagnetic heating device based on the increase of the resonant frequency and the decrease of the resonant frequency after the increase of the resonant frequency, wherein the duration of the decrease of the resonant period or the duration of the increase of the resonant frequency is less than the first duration threshold.

In this technical scheme, after electromagnetic heating device's resonance cycle reduces in the twinkling of an eye again crescent, perhaps when electromagnetic heating device's resonant frequency increases in the twinkling of an eye again gradually reduces, correspond the oil drain process, namely the user is the oil drain in the pan, because oil can make the temperature descend in the twinkling of an eye for liquid, then slowly intensifies, increases electromagnetic heating device's heating power this moment to rapid heating up for the culinary art time.

It should be noted that the duration of the decrease of the resonance period or the duration of the increase of the resonance frequency is smaller than the first time threshold, and the first time threshold is smaller than 3s, which is equivalent to the instantaneous decrease of the resonance period or the instantaneous increase of the resonance frequency.

In any of the above technical solutions, the step of controlling the heating power of the electromagnetic heating apparatus according to the resonance period or the resonance frequency further includes: reducing the heating power of the electromagnetic heating device based on the increase of the resonance period and the change rate of the resonance period being greater than a second period change rate threshold; or based on that the resonant frequency is reduced and the absolute value of the change rate of the resonant frequency is larger than the second frequency change rate threshold value, reducing the heating power of the electromagnetic heating device.

In the technical scheme, when the resonance period of the electromagnetic heating device is in an increasing trend and the change rate of the resonance period is greater than the second period change rate threshold, or when the resonance frequency of the electromagnetic heating device is in a decreasing trend and the change rate of the resonance frequency is greater than the second period change rate threshold, the temperature is indicated to rise faster, and at the moment, the heating power of the electromagnetic heating device is reduced, so that the overhigh temperature is avoided. For example, in the process of heating oil, the resonant period is in an increasing trend and the resonant frequency is in a decreasing trend along with the increase of the temperature, and when the change curve of the resonant period or the change curve of the resonant period frequency reaches a certain slope, the heating power is automatically reduced from the initial power, so that the phenomenon of pot pasting caused by overheating of the oil temperature is avoided.

In any of the above technical solutions, the step of controlling the heating power of the electromagnetic heating apparatus according to the resonance period or the resonance frequency further includes: based on the reduction of the resonance period and the fact that the duration of the reduction of the resonance period is greater than a second duration threshold, increasing the heating power of the electromagnetic heating device; or based on the increase of the resonant frequency and the duration of the increase of the resonant frequency is greater than the second duration threshold, the heating power of the electromagnetic heating device is increased.

In this technical scheme, when the resonance cycle of electromagnetic heating device reduces and the length of time of reducing is greater than the length of time threshold value during the second, perhaps when the resonant frequency of electromagnetic heating device increases in the twinkling of an eye and length of time of increase is greater than the length of time threshold value during the second, correspond and eat the material process, put into in the pan promptly the user and eat the material, because the great messenger temperature that can of the volume of eating the material descends gradually, increase electromagnetic heating device's heating power this moment, with rapid heating up, accelerate the culinary art time to eating the material, and improve the culinary art effect.

It should be noted that the duration of the decrease of the resonance period or the duration of the increase of the resonance frequency is less than the first time threshold, and the first time threshold is greater than 3s, which is equivalent to the gradual decrease of the resonance period or the gradual increase of the resonance frequency.

In any of the above technical solutions, the step of controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency specifically includes: reducing the resonance period from a preset value, and recovering to the preset value within a preset time after the resonance period is reduced, and keeping the heating power of the electromagnetic heating device; or the resonant frequency is increased from a preset value and is restored to the preset value within the preset time after the resonant frequency is increased, and the heating power of the electromagnetic heating device is kept.

In the technical scheme, when the balance state is maintained after the resonance period is suddenly reduced or the balance state is maintained after the resonance frequency is suddenly increased is detected, the cookware is judged to move, the power is not adjusted at the moment, the misoperation is avoided, and the control accuracy is improved.

In any of the above technical solutions, the step of controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency specifically includes: increasing from a preset value based on the resonance period, and recovering to the preset value within a preset time after the resonance period is increased, and keeping the heating power of the electromagnetic heating device; or the resonant frequency is reduced from the preset value and is restored to the preset value within the preset time after being reduced, and the heating power of the electromagnetic heating device is kept.

In the technical scheme, when the balance state is maintained after the resonance period is suddenly increased or the balance state is maintained after the resonance frequency is suddenly reduced is detected, the pan moving process is judged, power adjustment is not performed at the moment, misoperation is avoided, and control accuracy is improved.

In any of the above technical solutions, the method further includes: receiving a control instruction, wherein the control instruction comprises a target power; and controlling the electromagnetic heating device according to the target power.

In the technical scheme, when manual adjustment is available, the power mode of the manual adjustment can be selected for heating so as to meet the power adjustment requirement of a user.

According to another aspect of the present invention, there is provided a cooking apparatus including: an electromagnetic heating device; a memory storing a computer program; a processor, which when executing the computer program, implements the method for controlling a cooking apparatus according to any of the above-mentioned technical solutions.

According to the cooking device provided by the invention, the computer program realizes the steps of the control method of the cooking device according to any one of the above technical schemes when being executed by the processor, so that the cooking device has all the beneficial effects of the control method of the cooking device according to any one of the above technical schemes.

According to still another aspect of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of controlling a cooking apparatus according to any one of the above-described aspects.

The present invention provides a computer-readable storage medium, wherein a computer program is executed by a processor to implement the steps of the control method of the cooking device according to any one of the above technical solutions, and therefore the computer-readable storage medium includes all the beneficial effects of the control method of the cooking device according to any one of the above technical solutions.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a flowchart illustrating a control method of a cooking apparatus according to a first embodiment of the present invention;

fig. 2 is a flowchart illustrating a control method of a cooking apparatus according to a second embodiment of the present invention;

fig. 3 is a flowchart illustrating a control method of a cooking apparatus according to a third embodiment of the present invention;

fig. 4 is a flowchart illustrating a control method of a cooking apparatus according to a fourth embodiment of the present invention;

fig. 5 is a flowchart illustrating a control method of a cooking apparatus according to a fifth embodiment of the present invention;

fig. 6 is a flowchart illustrating a control method of a cooking apparatus according to a sixth embodiment of the present invention;

fig. 7 is a flowchart illustrating a control method of a cooking apparatus according to a seventh embodiment of the present invention;

fig. 8 is a flowchart illustrating a control method of a cooking apparatus according to an eighth embodiment of the present invention;

FIG. 9 shows a graph of resonant cycle variation for a cooking process according to an embodiment of the invention;

fig. 10 is a flowchart illustrating a control method of a cooking apparatus according to a ninth embodiment of the present invention;

fig. 11 shows a schematic block diagram of a cooking apparatus of the first embodiment of the present invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

An embodiment of the first aspect of the present invention provides a control method of a cooking apparatus, where the cooking apparatus includes an electromagnetic heating device.

Fig. 1 shows a flowchart illustrating a control method of a cooking apparatus according to a first embodiment of the present invention. Wherein, the method comprises the following steps:

102, acquiring a resonance period or a resonance frequency of an electromagnetic heating device;

and 104, controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency.

According to the control method of the cooking equipment provided by the invention, in the heating process of the cooking equipment, the resistance and the inductance of the electromagnetic heating device can be changed due to temperature change, or the resistance and the inductance can be changed due to deformation of a cooker caused by overhigh temperature, according to a resonant frequency formulaWhen the inductance L changes, the resonance frequency f changes because the capacitance C does not change, and the inductance L changes when the temperature is increased by heating, so that the resonance frequency or the resonance period (the resonance period is the reciprocal of the resonance frequency) of the electromagnetic heating device changes. This application judges temperature variation according to resonant frequency or resonance cycle to automatic control electromagnetic heating device's heating power realizes adjusting the temperature fast and effectively, avoids the high temperature phenomenon of dry combustion method to appear, perhaps avoids the temperature lower to lead to the culinary art effect unsatisfactory.

It should be noted that the resonant frequency or the resonant period of the electromagnetic heating device is obtained after the electromagnetic heating device operates for the preset time period, so as to ensure that the resonant frequency or the resonant period is accurate data obtained in a state that the electromagnetic heating device operates stably, and improve accuracy.

In some embodiments, the cooking apparatus may be an Induction cooker which carries a pot made of a metal material, and the electromagnetic Heating device uses an Induction Heating (IH) Heating principle to generate eddy current on the metal material by using current, so as to generate heat to heat the pot.

Fig. 2 is a flowchart illustrating a method of controlling a cooking apparatus according to a second embodiment of the present invention. Wherein, the method comprises the following steps:

step 202, acquiring a resonance period or a resonance frequency of the electromagnetic heating device;

step 204, based on the increase of the resonance period and the change rate of the resonance period being greater than the first period change rate threshold, reducing the heating power of the electromagnetic heating device; or based on that the resonant frequency is reduced and the absolute value of the change rate of the resonant frequency is larger than the first frequency change rate threshold value, reducing the heating power of the electromagnetic heating device.

In this embodiment, when the resonant period of the electromagnetic heating device is in an increasing trend and the change rate of the resonant period is greater than the first periodic change rate threshold, or when the resonant frequency of the electromagnetic heating device is in a decreasing trend and the change rate of the resonant frequency is greater than the first periodic change rate threshold, indicating that the temperature has risen faster, the heating power of the electromagnetic heating device is reduced, and the temperature is prevented from being too high. For example, in the process of heating a pot, as the temperature rises, the resonance period tends to rise, and the resonance frequency tends to fall, and when the change curve of the resonance period reaches a certain slope or the change curve of the resonance frequency reaches a certain slope, the heating power is automatically reduced from the initial power, so that the damage of the cooking equipment caused by dry burning is avoided.

Fig. 3 is a flowchart illustrating a control method of a cooking apparatus according to a third embodiment of the present invention. Wherein, the method comprises the following steps:

step 302, acquiring a resonance period or a resonance frequency of the electromagnetic heating device;

step 304, based on the increase of the resonance period and the change rate of the resonance period being greater than the first period change rate threshold, reducing the heating power of the electromagnetic heating device; or based on the fact that the resonant frequency is reduced and the absolute value of the change rate of the resonant frequency is larger than the first frequency change rate threshold value, reducing the heating power of the electromagnetic heating device;

step 306, determining that the resonance period is increased and increasing the heating power of the electromagnetic heating device based on the reduction of the resonance period and after the reduction of the resonance period; or increasing the heating power of the electromagnetic heating device based on the increase of the resonant frequency and the decrease of the resonant frequency after the increase of the resonant frequency, wherein the duration of the decrease of the resonant period or the duration of the increase of the resonant frequency is less than the first duration threshold.

In this embodiment, when the resonance cycle of electromagnetic heating device reduces gradually again after the twinkling of an eye, perhaps electromagnetic heating device's resonant frequency increases gradually again after the twinkling of an eye, correspond the oil drain process, namely the user is to the interior oil drain of pan, because oil can make the temperature descend in the twinkling of an eye for liquid, then slowly heat up again, increases electromagnetic heating device's heating power this moment to rapid heating up for the culinary art time.

It should be noted that the duration of the decrease of the resonance period or the duration of the increase of the resonance frequency is smaller than the first time threshold, and the first time threshold is smaller than 3s, which is equivalent to the instantaneous decrease of the resonance period or the instantaneous increase of the resonance frequency.

Fig. 4 is a flowchart illustrating a control method of a cooking apparatus according to a fourth embodiment of the present invention. Wherein, the method comprises the following steps:

step 402, acquiring a resonance period or a resonance frequency of the electromagnetic heating device;

step 404, based on the increase of the resonance period and the change rate of the resonance period being greater than the first period change rate threshold, reducing the heating power of the electromagnetic heating device; or based on the fact that the resonant frequency is reduced and the absolute value of the change rate of the resonant frequency is larger than the first frequency change rate threshold value, reducing the heating power of the electromagnetic heating device;

step 406, based on the reduction of the resonance period, determining that the resonance period is increased after the reduction of the resonance period, and increasing the heating power of the electromagnetic heating device; or based on the increase of the resonant frequency, determining that the resonant frequency is reduced after the resonant frequency is increased, and increasing the heating power of the electromagnetic heating device, wherein the duration of the reduction of the resonant period or the duration of the increase of the resonant frequency is less than a first duration threshold;

step 408, based on the increase of the resonance period and the change rate of the resonance period being greater than the threshold of the change rate of the second period, reducing the heating power of the electromagnetic heating device; or based on that the resonant frequency is reduced and the absolute value of the change rate of the resonant frequency is larger than the second frequency change rate threshold value, reducing the heating power of the electromagnetic heating device.

In this embodiment, when the resonant period of the electromagnetic heating device is in an increasing trend and the change rate of the resonant period is greater than the second periodic change rate threshold, or when the resonant frequency of the electromagnetic heating device is in a decreasing trend and the change rate of the resonant frequency is greater than the second periodic change rate threshold, it indicates that the temperature has risen faster, and at this time, the heating power of the electromagnetic heating device is reduced to avoid the temperature from being too high. For example, in the process of heating oil, the resonant period is in an increasing trend and the resonant frequency is in a decreasing trend along with the increase of the temperature, and when the change curve of the resonant period or the change curve of the resonant period frequency reaches a certain slope, the heating power is automatically reduced from the initial power, so that the phenomenon of pot pasting caused by overheating of the oil temperature is avoided.

Fig. 5 is a flowchart illustrating a control method of a cooking apparatus according to a fifth embodiment of the present invention. Wherein, the method comprises the following steps:

step 502, obtaining a resonance period or a resonance frequency of an electromagnetic heating device;

step 504, based on the increase of the resonance period and the change rate of the resonance period being greater than the first period change rate threshold, reducing the heating power of the electromagnetic heating device; or based on the fact that the resonant frequency is reduced and the absolute value of the change rate of the resonant frequency is larger than the first frequency change rate threshold value, reducing the heating power of the electromagnetic heating device;

step 506, determining that the resonance period is increased and increasing the heating power of the electromagnetic heating device based on the reduction of the resonance period and after the reduction of the resonance period; or based on the increase of the resonant frequency, determining that the resonant frequency is reduced after the resonant frequency is increased, and increasing the heating power of the electromagnetic heating device, wherein the duration of the reduction of the resonant period or the duration of the increase of the resonant frequency is less than a first duration threshold;

step 508, based on the increase of the resonance period and the change rate of the resonance period being greater than the threshold value of the change rate of the second period, reducing the heating power of the electromagnetic heating device; or based on the fact that the resonant frequency is reduced and the absolute value of the change rate of the resonant frequency is larger than a second frequency change rate threshold value, reducing the heating power of the electromagnetic heating device;

step 510, based on the reduction of the resonance period and the fact that the duration of the reduction of the resonance period is greater than a second duration threshold, increasing the heating power of the electromagnetic heating device; or based on the increase of the resonant frequency and the duration of the increase of the resonant frequency is greater than the second duration threshold, the heating power of the electromagnetic heating device is increased.

In this embodiment, when the resonant period of the electromagnetic heating device is decreased and the decreased duration is greater than the second duration threshold, or when the resonant frequency of the electromagnetic heating device is instantly increased and the increased duration is greater than the second duration threshold, the food adding process is performed correspondingly, that is, the user puts food into the pot, because the amount of food is large, the temperature is gradually decreased, the heating power of the electromagnetic heating device is increased at this time, so as to rapidly increase the temperature, accelerate the cooking time of the food, and improve the cooking effect.

It should be noted that the duration of the decrease of the resonance period or the duration of the increase of the resonance frequency is less than the first time threshold, and the first time threshold is greater than 3s, which is equivalent to the gradual decrease of the resonance period or the gradual increase of the resonance frequency.

Fig. 6 shows a flowchart of a control method of a cooking apparatus according to a sixth embodiment of the present invention. Wherein, the method comprises the following steps:

step 602, acquiring a resonance period or a resonance frequency of an electromagnetic heating device;

step 604, reducing the resonance period from a preset value, and recovering the resonance period to the preset value within a preset time after the resonance period is reduced, so as to maintain the heating power of the electromagnetic heating device; or the resonant frequency is increased from a preset value and is restored to the preset value within the preset time after the resonant frequency is increased, and the heating power of the electromagnetic heating device is kept.

In this embodiment, the preset time is less than 2s, when the balance state is maintained after the resonance period is suddenly reduced or the balance state is maintained after the resonance frequency is suddenly increased, it is determined that the cookware is in the moving process, and at this time, the power is not adjusted, so that the malfunction is avoided, and the control accuracy is improved.

Fig. 7 is a flowchart illustrating a method of controlling a cooking apparatus according to a seventh embodiment of the present invention. Wherein, the method comprises the following steps:

step 702, acquiring a resonance period or a resonance frequency of the electromagnetic heating device;

step 704, increasing the resonance period from a preset value, and recovering the resonance period to the preset value within a preset time after increasing the resonance period, and keeping the heating power of the electromagnetic heating device; or the resonant frequency is reduced from the preset value and is restored to the preset value within the preset time after being reduced, and the heating power of the electromagnetic heating device is kept.

In this embodiment, the preset time is less than 2s, when the balance state is maintained after the resonance period is suddenly increased or the balance state is maintained after the resonance frequency is suddenly decreased is detected, the pan moving process is determined, and at this time, the power is not adjusted, so that the malfunction is avoided, and the accuracy of control is improved.

Fig. 8 is a flowchart illustrating a control method of a cooking apparatus according to an eighth embodiment of the present invention, and fig. 9 is a graph illustrating a resonance period variation of a cooking process according to an embodiment of the present invention. As shown in fig. 8, the method includes:

step 802, storing the initial heating power P, storing the resonance period data, and calculating the slope.

Step 804, judging whether the resonance period is in a rising trend and accords with the change rule of the hot pot, if so, entering step 806, otherwise, returning to step 802.

In step 806, the heating power is reduced from P to P1.

Steps 804 and 806 are a pan heating process, as shown in fig. 9, as the temperature increases, the resonant period of the IGBT of the electromagnetic heating device increases (for example, with a slope Δ 0), and when it is detected that the resonant period conforms to the pan heating process rule, that is, a certain slope Δ 1 is reached, the initial heating power P is automatically decreased to P1.

And 808, judging whether oil drainage is detected, if so, entering 810, and otherwise, returning to 806.

At step 810, the heating power is increased to P.

Step 812, determining whether the resonance period conforms to the hot oil rule, if yes, entering step 814, otherwise, returning to step 810.

In step 814, the heating power is reduced from P to P2.

Steps 808 to 814 are hot oil process (including oil drain), and as shown in fig. 9, when the resonance period is detected to be decreased instantaneously and then increased (for example, increased with a slope Δ 2), it is determined that the oil drain period is suddenly changed, and the heating power is increased back to the initial heating power P. When the slope of the resonance period reaches a certain slope delta 3, the thermal oil rule is met, the temperature is judged to be too high, and the heating power is reduced to P2.

Step 816, determining whether the resonance period meets the dish placing rule, if yes, entering step 818, otherwise, returning to step 814.

In step 818, the heating power is increased to P.

Step 816 and step 818 are dish releasing processes, as shown in fig. 9, when it is detected that the resonance period is decreased with a slope Δ 4 and the decreasing time length is greater than T1, the dish releasing process is determined, and the heating power is increased back to the initial heating power P.

Wherein, Delta 1 is more than or equal to Delta 0, Delta 3 is more than or equal to Delta 2, T1 is more than or equal to 3s, and P is more than or equal to P1 and more than or equal to P2.

It should be noted that, as shown in fig. 9, when the equilibrium state is maintained after the sudden increase or sudden decrease of the resonance period is detected, it is determined that the cookware is moved, and no power adjustment is made. When there is a manual adjustment, a manually adjusted power mode is selected.

In a specific embodiment, the delay time of 10s after the start of the operation is used for storing the resonance period data [ T1, T2, T3, T4 and T5] of continuous 5s, and the slope of the resonance period is calculated every second, and the slope is taken as the unit time of 5 s. If the resonance period is in an increasing trend, the slope Δ is T5-T1, and if the resonance period is in a decreasing trend, the slope Δ is T1-T5.

If the slope delta is more than or equal to 2 and the lasting time T is more than or equal to 6s, the heating power is reduced to P which is less than or equal to 800W; if the resonance period is in a rising trend after suddenly reducing, the slope delta is more than or equal to 2, and the continuous time T is more than or equal to 5s, the heating power is reduced to P which is less than or equal to 700W; if the slope period is in a descending trend, the slope delta is more than or equal to 2, and the lasting time T is more than or equal to 5s, the dish is judged to be placed, and the heating power is increased to P more than or equal to 1500W.

The embodiment judges the stages of heating a pot, heating oil, placing dishes and the like through the change slope of the resonance period, and intelligently adjusts the firepower. When the temperature of the hot pot is judged to be overhigh, the power is automatically reduced, when the oil is drained, the power is automatically increased, when the oil is overhigh, the power is automatically reduced, and when the dish is drained, the firepower is automatically increased.

The present embodiment is not limited to the resonance period, and may be a resonance frequency, and when the heating power is adjusted according to the resonance frequency, the resonance frequency is lowered to lower the heating power and raised to increase the heating power because the frequency is the reciprocal of the period.

Fig. 10 shows a flowchart illustrating a control method of a cooking apparatus according to a ninth embodiment of the present invention. Wherein, the method comprises the following steps:

step 902, judging whether a control instruction is received, if so, entering step 904, otherwise, entering step 906;

step 904, controlling the electromagnetic heating device according to the target power in the control command;

step 906, acquiring a resonance period or a resonance frequency of the electromagnetic heating device;

and 908, controlling the heating power of the electromagnetic heating device according to the resonance period or the resonance frequency.

In this embodiment, when there is a manual adjustment, the manually adjusted power mode may be selected for heating to meet the user power adjustment requirements.

In a second aspect of the present invention, a cooking apparatus is provided, and fig. 11 shows a schematic block diagram of a cooking apparatus 1000 according to a first embodiment of the present invention. Wherein, this cooking apparatus 1000 includes:

an electromagnetic heating device 1002;

a memory 1004, the memory 1004 storing a computer program;

a processor 1006, the processor 1006 implementing a control method of a cooking apparatus as in any of the above embodiments when the processor 1006 executes a computer program.

In the cooking apparatus 1000 provided by the present invention, when the computer program is executed by the processor 1006, the steps of the control method of the cooking apparatus according to any of the above embodiments are implemented, so that the cooking apparatus 1000 includes all the beneficial effects of the control method of the cooking apparatus according to any of the above embodiments.

In an embodiment of the third aspect of the present invention, a computer-readable storage medium is proposed, on which a computer program is stored, which when executed by a processor implements the control method of the cooking apparatus as in any of the above embodiments.

The present invention provides a computer-readable storage medium, which when executed by a processor implements the steps of the control method of a cooking appliance as in any one of the above embodiments, and therefore includes all the advantageous effects of the control method of a cooking appliance as in any one of the above embodiments.

In the description herein, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly stated or limited otherwise; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.