CN113729488A

CN113729488A - Control method and device of cooking appliance

Info

Publication number: CN113729488A
Application number: CN202010478351.9A
Authority: CN
Inventors: 刘礼发
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-12-03

Abstract

The invention discloses a control method and device of a cooking appliance. Wherein, the method comprises the following steps: acquiring a reference heating time of the cooking appliance under the condition that the upward pressure of the cooking appliance is detected; acquiring parameter values of operating parameters of the cooking appliance in at least one reference heating time, wherein the operating parameters comprise at least one of the following: the pressure and temperature in the cooker; determining the variation of the working parameter within each reference heating time based on the parameter value of the working parameter; determining whether the cooking appliance is air-leaking based on the determined at least one variation; and under the condition that the gas leakage of the cooking appliance is determined, controlling the target parameter value of the working parameter to be reduced, and controlling the cooking appliance to execute the pressure maintaining stage according to the reduced target parameter value. The invention solves the technical problem that the condition of air leakage of the cooking utensil when reaching a certain pressure cannot be detected in time in the related technology.

Description

Control method and device of cooking appliance

Technical Field

The invention relates to the field of household appliances, in particular to a control method and device of a cooking appliance.

Background

At present, the electric pressure cooker can determine whether to press upwards by comparing the current temperature in the cooker with the preset boiling point temperature or detecting the position of the opening stopping rod, and then after determining that the pressing is impossible or difficult, the electric pressure cooker processes on program control to prevent the thermal fuse of the heating plate from fusing when continuously heating or the bottom of the electric pressure cooker is heated for a long time to become yellow.

However, the above scheme only deals with the situation that the electric pressure cooker leaks air and cannot normally press the air, and does not deal with the situation that the air is not leaked at low pressure but leaks air when reaching a certain pressure because the sealing ring is not installed or aged.

In view of the above problems, no effective solution has been proposed.

Disclosure of Invention

The embodiment of the invention provides a control method and a control device of a cooking appliance, which are used for at least solving the technical problem that the condition that the air leakage of the cooking appliance is caused when the pressure reaches a certain value cannot be detected in time in the related technology.

According to an aspect of an embodiment of the present invention, there is provided a control method of a cooking appliance, including: acquiring a reference heating time of the cooking appliance under the condition that the upward pressure of the cooking appliance is detected; acquiring parameter values of operating parameters of the cooking appliance in at least one reference heating time, wherein the operating parameters comprise at least one of the following: the pressure and temperature in the cooker; determining the variation of the working parameter within each reference heating time based on the parameter value of the working parameter; determining whether the cooking appliance is air-leaking based on the determined at least one variation; and under the condition that the gas leakage of the cooking appliance is determined, controlling the target parameter value of the working parameter to be reduced, and controlling the cooking appliance to execute the pressure maintaining stage according to the reduced target parameter value.

In the embodiment of the invention, after the cooking appliance is pressed upwards, whether the cooking appliance leaks air or not can be determined by detecting the variable quantity of the working parameter within at least one reference heating time, so that the purpose of detecting whether the cooking appliance leaks air or not when a certain pressure is reached is achieved, and further, after the cooking appliance leaks air, the target parameter value of the working parameter is reduced, the purpose of preventing the cooking appliance from being continuously heated and causing more serious air leakage is achieved, so that the timeliness of air leakage detection is improved, more water vapor or oil stain is avoided being generated, the technical effect of user experience is improved, and the technical problem that the condition that the air leakage of the cooking appliance occurs when the certain pressure is reached cannot be timely detected in the related technology is solved.

Alternatively, in the case where a variation is determined based on a parameter value of the operating parameter, determining whether the cooking appliance is air-leaking based on the determined variation includes: acquiring target variable quantity corresponding to the reference heating time; comparing the variation with a target variation; determining that the cooking appliance leaks air when the variation is smaller than the target variation; and in the case that the variation is equal to the target variation, determining that the cooking appliance is airtight. Through comparing the variable quantity with the target variable quantity, the purpose of detecting whether the cooking utensil leaks air is achieved.

Alternatively, in the case that a plurality of variation amounts are determined based on the parameter value of the operating parameter, determining whether the cooking appliance is air-leaking based on the determined plurality of variation amounts includes: acquiring target variable quantity corresponding to the reference heating time; comparing the plurality of variations with a target variation; determining that the cooking appliance leaks air when any one variation is smaller than the target variation; and determining that the cooking appliance is airtight when the plurality of variation amounts are equal to the target variation amount. Through comparing a plurality of variation with the target variation, whether the purpose of detecting cooking utensil gas leakage has been reached.

Alternatively, in the case that a plurality of variation amounts are determined based on the parameter value of the operating parameter, determining whether the cooking appliance is air-leaking based on the determined plurality of variation amounts includes: comparing the plurality of variations; determining that the cooking utensil leaks air under the condition that any one variable quantity is smaller than other variable quantities; and determining that the cooking utensil is airtight when the plurality of variable quantities are equal. Through comparing a plurality of variation with the target variation, whether the purpose of detecting cooking utensil gas leakage has been reached.

Optionally, the method further comprises: when the cooking appliance is detected to be pressed upwards, acquiring a first parameter value of a working parameter; equally dividing the upper pressure stage into a plurality of stages based on the difference value between the target parameter value and the first parameter value, and determining the variable quantity of the working parameter corresponding to the first stage as the target variable quantity; acquiring the sum of the first parameter value and the target variable quantity to obtain a second parameter value; and acquiring the heating time of the working parameter rising from the first parameter value to the second parameter value to obtain the reference heating time. The purpose of determining the target variation and the reference heating time is achieved by dividing the upper pressure stage into a plurality of stages.

Optionally, controlling the target parameter value of the operating parameter to decrease comprises: determining a change amount set in the at least one change amount, wherein the change amount in the change amount set is smaller than the target change amount or smaller than other change amounts; determining a first variable in the variable set based on the acquisition time of each variable in the variable set; acquiring a third parameter value of the working parameter when the reference heating time corresponding to the first variable quantity is reached; and obtaining the difference between the third parameter value and the first variable quantity to obtain the reduced target parameter value. And determining the reduced target parameter value by obtaining the difference value between the third parameter value and the first variable quantity, so as to achieve the purpose of reducing the air leakage.

Optionally, controlling the cooking appliance to perform the pressure holding phase according to the reduced target parameter value comprises: controlling the corresponding pressure maintaining time of the pressure maintaining stage to be prolonged; and controlling the cooking appliance to execute the pressure maintaining stage according to the reduced target parameter value and the prolonged pressure maintaining time. By extending the dwell time, the same cooking result is ensured.

Optionally, the obtaining the variation of the operating parameter in each reference heating time includes: when each reference heating time starts to be executed, acquiring a fourth parameter value of the working parameter; when each reference heating time is reached, acquiring a fifth parameter value of the working parameter; and acquiring the difference between the fifth parameter value and the fourth parameter value to obtain the variation of the working parameter. The purpose of determining the variable quantity of the working parameter is achieved by acquiring the parameter value of the working parameter when the reference heating time starts to be executed and reaches.

Optionally, detecting the cooking appliance up-pressure comprises one of: acquiring the temperature in the pot of the cooking appliance, and determining the upper pressure of the cooking appliance under the condition that the difference value between the temperature in the pot and the boiling point temperature is greater than a preset value; and determining the upward pressure of the cooking utensil when the upward pressure signal sent by the detection device is received. The purpose of determining whether the cooking appliance is pressed up is achieved by detecting the temperature or the pressing signal, so that the control method can be suitable for different types of cooking appliances, and the effect of expanding the application range of the control method is achieved.

Optionally, the cooking appliance is an electric pressure cooker.

According to another aspect of the embodiments of the present invention, there is also provided a control apparatus of a cooking appliance, including: the cooking device comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring the reference heating time of the cooking device under the condition that the cooking device is detected to be pressed upwards; a second obtaining module, configured to obtain a parameter value of an operating parameter of the cooking appliance during at least one reference heating time, where the operating parameter includes at least one of: the pressure and temperature in the cooker; the first determining module is used for determining the variation of the working parameter in each reference heating time based on the parameter value of the working parameter; a second determination module for determining whether the cooking appliance is air-leaking based on the determined at least one variation; and the control module is used for controlling the target parameter value of the working parameter to be reduced under the condition that the gas leakage of the cooking appliance is determined, and controlling the cooking appliance to execute the pressure maintaining stage according to the reduced target parameter value.

Optionally, the second obtaining module includes: an acquisition unit configured to acquire a target variation amount corresponding to a reference heating time; a comparison unit for comparing the determined variation with a target variation; wherein, in case that the variation is smaller than the target variation, determining that the cooking appliance is air leaking; and in the case that the variation is equal to the target variation, determining that the cooking appliance is airtight.

Optionally, the second obtaining module includes: an acquisition unit configured to acquire a target variation amount corresponding to a reference heating time; a comparison unit for comparing the determined plurality of variations with a target variation; wherein, under the condition that any one variable quantity is smaller than the target variable quantity, the air leakage of the cooking appliance is determined; and determining that the cooking appliance is airtight when the plurality of variation amounts are equal to the target variation amount.

Optionally, the second obtaining module includes: a comparison unit for comparing the determined plurality of variations; wherein, under the condition that any one variable quantity is smaller than other variable quantities, the air leakage of the cooking appliance is determined; and determining that the cooking utensil is airtight when the plurality of variable quantities are equal.

According to another aspect of the embodiments of the present invention, there is also provided a storage medium including a stored program, wherein when the program is executed, an apparatus in which the storage medium is controlled performs the above-mentioned control method of the cooking appliance.

According to another aspect of the embodiments of the present invention, there is also provided a processor for executing a program, wherein the program executes the control method of the cooking appliance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a flowchart of a control method of a cooking appliance according to an embodiment of the present invention;

fig. 2 is a flowchart of an alternative control method of a cooking appliance according to an embodiment of the present invention; and

fig. 3 is a schematic diagram of a control device of a cooking appliance according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

According to an embodiment of the present invention, there is provided a control method of a cooking appliance, it should be noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that here.

Fig. 1 is a flowchart of a control method of a cooking appliance according to an embodiment of the present invention, as shown in fig. 1, the method including the steps of:

step S102, acquiring reference heating time of the cooking appliance under the condition that the cooking appliance is detected to be pressed upwards;

alternatively, the cooking appliance may be an electric pressure cooker, or may be a device capable of cooking under high pressure, but is not limited thereto. In the embodiment of the present invention, an electric pressure cooker is taken as an example for description.

For a cooking utensil with an unassembled sealing ring or an aged cooking utensil, the problem that air does not leak when the pressure is low but leaks when the pressure reaches a certain value exists. For the above case, the cooking appliance may be normally pressed up, but after the pressing up, the target parameter value may not be reached. In order to avoid air leakage after the cooking appliance is pressed upwards, the cooking appliance is continuously heated, so that the air leakage is more serious, more water vapor or oil stain is generated, the user use experience is influenced, and the problem that whether the air leakage exists after the cooking appliance reaches a certain pressure or not is firstly judged.

After the cooking utensil starts to cook, the cooking utensil usually adopts high-power operation, and in the boosting cooking stage after the pressure is increased, in order to prevent the pressure overshoot, a heating mode of low-power heating or equivalent low-power heating of high-power intermittent heating is generally adopted, so that the rising curve of the pressure or the temperature in the cooker is linear, that is, the variation of the pressure or the temperature rise in the cooker is fixed in the same heating time. On the basis, whether the air leakage of the cooking utensil exists or not can be judged by detecting whether the variation of the pressure or the temperature is linear or not in the reference heating time.

Specifically, the reference heating time in the above step may be one experimentally determined in advance, and the reference heating time is stored in the cooking appliance and is allowed to be modified by the user.

Because different users use cooking utensil when carrying out the culinary art of different food materials, the pressurize pressure or the pressurize temperature that carry out heating control in the pressurize stage are different, and in addition, because the height above sea level difference of different user positions, the first pressure of gathering when cooking utensil pushes up is also different. On the basis, in order to avoid excessive air leakage of the cooking appliance, the reference heating time in the above step can be determined based on the actual use condition of the cooking appliance.

Step S104, acquiring parameter values of working parameters of the cooking appliance in at least one reference heating time, wherein the working parameters comprise at least one of the following parameters: the pressure and temperature in the cooker;

step S106, determining the variable quantity of the working parameter in each reference heating time based on the parameter value of the working parameter;

in the case where the cooking appliance is airtight, the curve of the rise in the pressure or temperature in the pot is linear, and therefore, the amount of change in the pressure or temperature in the reference heating time can be obtained. Since the pressure inside the cooker changes obviously after the cooker is pressed, in the embodiment of the present invention, the variation of the pressure inside the cooker is taken as an example for description.

In an alternative embodiment, the pressure value reached when the cooking appliance leaks air may be determined in advance through experiments, and then the maximum heating time is determined based on the pressure value and is used as the reference heating time, at this time, the cooking appliance only needs to execute one reference heating time, and the variation of the pressure or the temperature in the time is obtained.

However, different cooking appliances have different pressure values when the cooking appliances leak air, and in order to accurately detect whether the different cooking appliances leak air after reaching a certain pressure, a short reference heating time may be preset, and the cooking appliances may be controlled to sequentially execute a plurality of reference heating times until the cooking appliances leak air.

Step S108, determining whether the cooking utensil leaks air or not based on the determined at least one variation;

in an alternative embodiment, for the case that a variation is obtained, a target variation of the pressure in the pot or the temperature in the pot under the condition that the cooking appliance is airtight may be predetermined, and whether the cooking appliance is airtight may be determined by determining whether the obtained variation and the target variation are linear.

In another alternative embodiment, for the case that a plurality of variations are obtained, the target variation of the pressure in the pot or the temperature in the pot under the condition that the cooking appliance is airtight may be predetermined, and then whether the cooking appliance is airtight may be determined by determining whether each obtained variation and the target variation are linear.

In yet another alternative embodiment, for the case that the plurality of variation amounts are obtained, it may be determined whether the plurality of variation amounts are linear by directly comparing the obtained plurality of variation amounts, so as to determine whether the cooking appliance is air-leaking.

And step S110, controlling the target parameter value of the working parameter to be reduced under the condition that the gas leakage of the cooking appliance is determined, and controlling the cooking appliance to execute a pressure maintaining stage according to the reduced target parameter value.

Specifically, the target parameter value in the above step may be a holding pressure or a holding pressure temperature for controlling the cooking appliance to heat or stop heating in the holding pressure stage, and the parameter value may be set by the user or may be a default parameter value corresponding to the cooking function selected by the user. After the pressure-up, the cooking appliance needs to be heated continuously until the pressure in the pot or the temperature in the pot reaches the target parameter value.

In an alternative embodiment, after determining that the cooking appliance is leaking gas, to avoid the leaking gas being more serious, the target parameter value may be decreased, and the pressure holding phase may be performed based on the decreased target parameter value.

Based on the embodiment of the invention, after the cooking appliance is pressed upwards, whether the cooking appliance leaks air or not can be determined by detecting the variable quantity of the working parameter within at least one reference heating time, so that the purpose of detecting whether the cooking appliance leaks air or not when a certain pressure is reached is achieved, and further, after the cooking appliance leaks air, the target parameter value of the working parameter is reduced, the purpose of preventing the cooking appliance from being continuously heated and causing more serious air leakage is achieved, so that the timeliness of air leakage detection is improved, more water vapor or oil stain is avoided being generated, the technical effect of user experience is improved, and the technical problem that the condition that the air leakage of the cooking appliance occurs when the certain pressure is reached cannot be timely detected in the related technology is solved.

In order to achieve the purpose of detecting whether the cooking appliance leaks air, in the embodiment of the present invention, the detection may be achieved in various ways as follows.

Optionally, in an embodiment of the present invention, in the case where a variation is determined based on a parameter value of the operating parameter, determining whether the cooking appliance is air-leaking based on the determined variation includes: acquiring target variable quantity corresponding to the reference heating time; comparing the variation with a target variation; determining that the cooking appliance leaks air when the variation is smaller than the target variation; and in the case that the variation is equal to the target variation, determining that the cooking appliance is airtight.

The target variation in the above step may be a standard variation in which the pressure in the pan or the temperature in the pan is raised is determined in advance through experiments. In addition, in order to avoid excessive air leakage of the cooking appliance, the target variation in the above steps may also be determined based on actual use of the cooking appliance.

In an alternative embodiment, after obtaining one variation, the obtained variation may be compared with a target variation, and if the two variations are equal, the curve indicating the rise of the pressure in the cooker or the temperature in the cooker is linear, it may be determined that the cooking appliance is airtight; if the obtained variation is small, the rising curve of the pressure in the cooker or the temperature in the cooker is not linear, and the air leakage of the cooking utensil can be determined.

Alternatively, in the case that a plurality of variation amounts are determined based on the parameter value of the operating parameter, determining whether the cooking appliance is air-leaking based on the determined plurality of variation amounts includes: acquiring target variable quantity corresponding to the reference heating time; comparing the plurality of variations with a target variation; determining that the cooking appliance leaks air when any one variation is smaller than the target variation; and determining that the cooking appliance is airtight when the plurality of variation amounts are equal to the target variation amount.

In an alternative embodiment, after the plurality of variations are obtained, the obtained variations may be sequentially compared with a target variation according to the obtaining time of the variations, if the two variations are equal, it indicates that the rising curve of the pressure in the pot or the temperature in the pot is linear, and it may be determined that the cooking appliance is not air-tight, and then the next obtained variation is continuously compared with the target variation until the obtained variation is smaller, which indicates that the rising curve of the pressure in the pot or the temperature in the pot is not linear, and it may be determined that the cooking appliance is air-tight; or until there is no next variation, that is, all variations are equal to the target variation, it may be determined that the cooking appliance is airtight.

Alternatively, in the case that a plurality of variation amounts are determined based on the parameter value of the operating parameter, determining whether the cooking appliance is air-leaking based on the determined plurality of variation amounts includes: comparing the plurality of variations; determining that the cooking utensil leaks air under the condition that any one variable quantity is smaller than other variable quantities; and determining that the cooking utensil is airtight when the plurality of variable quantities are equal.

In an alternative embodiment, after obtaining a plurality of variations, sequentially obtaining the variations at two adjacent times according to the obtaining time of the variations, and comparing the obtained variations, if the two variations are equal, the rising curve of the pressure in the pot or the temperature in the pot is linear, so that the cooking appliance is determined to be airtight, and then continuously obtaining the next variation for comparison until the obtained variation is smaller, the rising curve of the pressure in the pot or the temperature in the pot is not linear, so that the cooking appliance is determined to be airtight; or until there is no next variation, that is, all variations are equal to the target variation, it may be determined that the cooking appliance is airtight.

Optionally, in an embodiment of the present invention, the method further includes: when the cooking appliance is detected to be pressed upwards, acquiring a first parameter value of a working parameter; equally dividing the upper pressure stage into a plurality of stages based on the difference value between the target parameter value and the first parameter value, and determining the variable quantity of the working parameter corresponding to the first stage as the target variable quantity; acquiring the sum of the first parameter value and the target variable quantity to obtain a second parameter value; and acquiring the heating time of the working parameter rising from the first parameter value to the second parameter value to obtain the reference heating time.

Specifically, the first parameter value may be a pressure in the pot or a temperature in the pot collected when the cooking appliance is pressed.

In an alternative embodiment, the step of pressing the upper pressure may be equally divided into a plurality of stages according to a difference between the target parameter value and the first parameter value, where the variation corresponding to each stage is the same and is the same as the target variation, and the target variation is equal to a ratio of the difference to the number of the divided stages.

Optionally, in an embodiment of the present invention, controlling the target parameter value of the operating parameter to decrease includes: determining a change amount set in the at least one change amount, wherein the change amount in the change amount set is smaller than the target change amount or smaller than other change amounts; determining a first variable in the variable set based on the acquisition time of each variable in the variable set; acquiring a third parameter value of the working parameter when the reference heating time corresponding to the first variable quantity is reached; and obtaining the difference between the third parameter value and the first variable quantity to obtain the reduced target parameter value.

Specifically, the variation set in the above step may be a set consisting of non-linear variations, the first variation may be a variation whose acquisition time is the earliest, the third parameter value may be the pressure in the pan or the temperature in the pan acquired at the end of the reference heating time, and the third parameter value is smaller than the target parameter value.

In an alternative embodiment, after the air leakage, the variation of the pressure in the pot or the temperature in the pot is not linear any more, and the different variations are determined in different reference heating times, so that the cooking appliance can be determined to be air leakage in the reference heating time corresponding to the variation obtained at the earliest time, but the cooking appliance is not air leakage before the reference heating time. Therefore, in order to reduce the air leakage, the target parameter value may be reduced to the pressure in the cooker before the reference heating time, that is, the reduced target parameter value is equal to the difference between the third parameter value and the first variation.

Optionally, in an embodiment of the present invention, controlling the cooking appliance to perform the pressure holding phase according to the reduced target parameter value includes: controlling the corresponding pressure maintaining time of the pressure maintaining stage to be prolonged; and controlling the cooking appliance to execute the pressure maintaining stage according to the reduced target parameter value and the prolonged pressure maintaining time.

In an alternative embodiment, the lower the pressure, the longer the dwell time, for the same cooking result. Therefore, the dwell time can be extended to ensure the same cooking result.

Optionally, in this embodiment of the present invention, acquiring a variation of the operating parameter in each reference heating time includes: when each reference heating time starts to be executed, acquiring a fourth parameter value of the working parameter; when each reference heating time is reached, acquiring a fifth parameter value of the working parameter; and acquiring the difference between the fifth parameter value and the fourth parameter value to obtain the variation of the working parameter.

In an alternative embodiment, after the pressure-increasing stage is equally divided into a plurality of stages, a plurality of reference heating times may be sequentially performed, wherein at the beginning of each reference heating time, the pressure or the temperature in the cooker is collected to obtain a fourth parameter value, at the end of each reference heating time, the pressure or the temperature in the cooker is collected to obtain a fifth parameter value, and the difference between the two parameter values is the variation of the pressure or the temperature increase.

Optionally, detecting the cooking appliance up-pressure comprises one of: acquiring the temperature in the pot of the cooking appliance, and determining the upper pressure of the cooking appliance under the condition that the difference value between the temperature in the pot and the boiling point temperature is greater than a preset value; and determining the upward pressure of the cooking utensil when the upward pressure signal sent by the detection device is received.

Specifically, the boiling point temperature may be a boiling point temperature corresponding to an altitude where the cooking appliance is located, and the preset value may be determined according to an actual situation, and in the embodiment of the present invention, 2 ℃ is taken as an example for description. The detection device may be a device capable of detecting an up-pressure signal, such as an open-stop lever or a reed switch.

In order to enable the control method to be applicable to different types of cooking appliances, in an alternative embodiment, for the cooking appliance provided with the upper pressure signal detection device, whether the cooking appliance is pressed upwards or not can be determined by detecting the upper pressure signal; and for the cooking appliance which is not provided with the pressure signal detection device, whether the pressure of the cooking appliance is increased or not can be determined by judging whether the difference value between the temperature in the pot and the boiling point temperature is greater than a preset value or not. The purpose of determining whether the cooking appliance is pressed up is achieved by detecting the temperature or the pressing signal, and the effect of expanding the application range of the control method is achieved.

In the following, a preferred embodiment of the present invention will be described in detail with reference to fig. 2, which is an example of detecting the pressure in the cooker, and as shown in fig. 2, the method comprises the following steps:

and step S21, starting cooking and detecting the temperature of the food in the pot.

Alternatively, after the start of cooking, the temperature T in the pan may be collected.

In step S22, it is determined whether T-T0> Δ T.

Alternatively, the temperature T in the pot may be compared with a preset boiling point T0, and when T-T0> Δ T, the upper pressure of the cooking appliance may be determined, and the process proceeds to step S24.

In step S23, it is determined whether or not an up-pressure signal is detected.

Alternatively, in the case where the pressing signal is detected, the cooking appliance pressing may be determined and the process proceeds to step S24.

In step S24, the cooking utensil is pressed upward, and the pressure P1 at this time is recorded.

Step S25, dividing the pressure raising stage into a plurality of stages with the same pressure raising stage delta P0 according to the difference value between the target pressure Pmax and the target pressure P1.

Optionally, the target pressure change Δ P0 for each segment is (Pmax-P1)/n. For example, if the target pressure Pmax is 70KPa, P1 is 10KPa, and the division is 6 steps, the pressure change value Δ P0 of each step is (70-10)/6 is 10 KPa.

In step S26, the pressure is increased from P1 and the time measurement is started, and when the pressure is increased by Δ P0, the time measurement is stopped, and the measured time is the reference heating time ta of the pressure increase Δ P0.

Optionally, the pressure at this time is Pa, Pa ═ P1 +. DELTA.p 0. After a further reference heating time ta, the pressure is Pb. The pressure rise is linear due to the same heating power. At this time, Pb Pa +. DELTA.P 0P 1+ 2. DELTA.P 0.

In step S27, as the pressure rises, if the pressure variation Δ P < Δp0, at which the current pressure is P2, is within a reference heating time ta, it may be determined that the cooking appliance leaks air at P2.

Optionally, the pressure continues to rise, with a pressure rise Δ P < Δp0 for the next reference heating time ta, at which point the pressure is P2, where P2< Pmax. At this time, it may be determined that the cooking appliance is air-leaked at the pressure P2.

In step S28, the target pressure Pmax is reduced so that Pmax becomes P2 — Δ P.

And step S29, prolonging the pressure maintaining time.

Through the steps, the situation that air leakage occurs only after the pressure reaches a certain value due to the fact that the sealing ring is not installed or aged can be detected, and after the air leakage is detected, the target pressure is reduced, the pressure is prevented from continuing to rise, and the air leakage is larger. Simultaneously, intelligence extension pressurize time guarantees the culinary art effect. The user experience is improved.

According to an embodiment of the present invention, there is provided a control apparatus of a cooking appliance. The device may perform the control method of the cooking appliance provided in the above embodiment, and the specific implementation manner is the same as that of the above embodiment, which is not described herein again.

Fig. 3 is a schematic diagram of a control apparatus of a cooking appliance according to an embodiment of the present invention, as shown in fig. 3, the apparatus including:

a first acquisition module 32, configured to acquire a reference heating time of the cooking appliance when the cooking appliance is detected to be pressed upwards;

a second obtaining module 34, configured to obtain a parameter value of an operating parameter of the cooking appliance during at least one reference heating time, where the operating parameter includes at least one of: the pressure and temperature in the cooker;

a first determining module 36, configured to determine, based on the parameter value of the operating parameter, a variation of the operating parameter in each reference heating time;

a second determination module 38 for determining whether the cooking appliance is air-leaking based on the determined at least one variation;

and the control module 310 is configured to control the target parameter value of the working parameter to be reduced and control the cooking appliance to perform the pressure maintaining stage according to the reduced target parameter value when it is determined that the cooking appliance is leaking gas.

Optionally, in this embodiment of the present invention, the second obtaining module includes: an acquisition unit configured to acquire a target variation amount corresponding to a reference heating time; a comparison unit for comparing the determined variation with a target variation; wherein, in case that the variation is smaller than the target variation, determining that the cooking appliance is air leaking; and in the case that the variation is equal to the target variation, determining that the cooking appliance is airtight.

Optionally, in this embodiment of the present invention, the second obtaining module includes: an acquisition unit configured to acquire a target variation amount corresponding to a reference heating time; a comparison unit for comparing the determined plurality of variations with a target variation; wherein, under the condition that any one variable quantity is smaller than the target variable quantity, the air leakage of the cooking appliance is determined; and determining that the cooking appliance is airtight when the plurality of variation amounts are equal to the target variation amount.

Optionally, in this embodiment of the present invention, the second obtaining module includes: a comparison unit for comparing the determined plurality of variations; wherein, under the condition that any one variable quantity is smaller than other variable quantities, the air leakage of the cooking appliance is determined; and determining that the cooking utensil is airtight when the plurality of variable quantities are equal.

Optionally, in an embodiment of the present invention, the apparatus further includes: the third acquisition module is used for acquiring a first parameter value of the working parameter when the cooking appliance is detected to be pressed upwards; the dividing module is used for equally dividing the upper pressure stage into a plurality of stages based on the difference value between the target parameter value and the first parameter value, and determining the variable quantity of the working parameter corresponding to the first stage as the target variable quantity; the processing module is used for acquiring the sum of the first parameter value and the target variable quantity to obtain a second parameter value; and the fourth acquisition module is used for acquiring the heating time of the working parameter rising from the first parameter value to the second parameter value to obtain the reference heating time.

Optionally, in an embodiment of the present invention, the control module includes: a first determining unit, configured to determine a variation set of the at least one variation, where the variation in the variation set is smaller than the target variation, or smaller than other variations; a second determining unit configured to determine a first variation in the variation set based on an acquisition time of each variation in the variation set; the first acquisition unit is used for acquiring a third parameter value of the working parameter when the reference heating time corresponding to the first variable reaches; and the second obtaining unit is used for obtaining the difference between the third parameter value and the first variable quantity to obtain the reduced target parameter value.

Optionally, in this embodiment of the present invention, the control module is further configured to control the dwell time corresponding to the dwell phase to be extended, and control the cooking appliance to execute the dwell phase according to the reduced target parameter value and the extended dwell time.

Optionally, in this embodiment of the present invention, the second obtaining module includes: a third acquisition unit configured to acquire a fourth parameter value of the operating parameter when each of the reference heating times starts to be executed; a fourth acquiring unit configured to acquire a fifth parameter value of the working parameter when each reference heating time is reached; and the processing unit is used for acquiring the difference between the fifth parameter value and the fourth parameter value to obtain the variation of the working parameter.

Optionally, in an embodiment of the present invention, the apparatus further includes one of:

the third acquisition module is used for acquiring the temperature in the pot of the cooking appliance;

the receiving module is used for receiving the upper pressure signal output by the detection device;

the processing module is used for determining the upper pressure of the cooking appliance under the condition that the difference value between the temperature in the pot and the boiling point temperature is greater than a preset value; or, when the pressure-up signal sent by the detection device is received, the pressure-up of the cooking utensil is determined.

According to an embodiment of the present invention, there is provided a storage medium including a stored program, wherein an apparatus in which the storage medium is controlled when the program is executed performs the control method of the cooking appliance in the above-described embodiment.

According to an embodiment of the present invention, there is provided a processor for executing a program, wherein the program executes the control method of the cooking appliance in the above-mentioned embodiment.

In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A method of controlling a cooking appliance, comprising:

acquiring a reference heating time of a cooking appliance under the condition that the upward pressure of the cooking appliance is detected;

acquiring parameter values of operating parameters of the cooking appliance in at least one reference heating time, wherein the operating parameters comprise at least one of the following: the pressure and temperature in the cooker;

determining the variation of the working parameter in each reference heating time based on the parameter value of the working parameter;

determining whether the cooking appliance is air-leaking based on the determined at least one variation;

and under the condition that the gas leakage of the cooking appliance is determined, controlling the target parameter value of the working parameter to be reduced, and controlling the cooking appliance to execute a pressure maintaining stage according to the reduced target parameter value.

2. The method of claim 1, wherein determining whether the cooking appliance is out of gas based on the determined amount of change in the case where one of the amounts of change is determined based on the parameter value of the operating parameter comprises:

acquiring a target variable quantity corresponding to the reference heating time;

comparing the variation with the target variation;

if the variation is smaller than the target variation, determining that the cooking appliance is air leakage;

and determining that the cooking appliance is airtight when the variation is equal to the target variation.

3. The method of claim 1, wherein determining whether the cooking appliance is out of gas based on the determined plurality of variations in the case where the plurality of variations are determined based on the parameter value of the operating parameter comprises:

comparing a plurality of the variation amounts with the target variation amount;

determining that the cooking appliance is leaked in the case that any one of the variation amounts is smaller than the target variation amount;

and determining that the cooking utensil is airtight when the plurality of variation amounts are equal to the target variation amount.

4. The method of claim 1, wherein determining whether the cooking appliance is out of gas based on the determined plurality of variations in the case where the plurality of variations are determined based on the parameter value of the operating parameter comprises:

comparing a plurality of the variations;

determining that the cooking utensil is leaked when any one variation is smaller than other variations;

and determining that the cooking utensil is airtight when the plurality of variation amounts are equal.

5. The method according to any one of claims 2 to 4, further comprising:

when the cooking appliance is detected to be pressed upwards, acquiring a first parameter value of the working parameter;

equally dividing the upper pressure stage into a plurality of stages based on the difference value between the target parameter value and the first parameter value, and determining the variable quantity of the working parameter corresponding to the first stage as a target variable quantity;

acquiring the sum of the first parameter value and the target variable quantity to obtain a second parameter value;

and acquiring the heating time of the working parameter rising from the first parameter value to the second parameter value to obtain the reference heating time.

6. The method of any of claims 2 to 4, wherein controlling the target parameter value of the operating parameter to decrease comprises:

determining a variation set in at least one variation, wherein the variation in the variation set is smaller than a target variation or smaller than other variations;

determining a first variable in the variable set based on the acquisition time of each variable in the variable set;

acquiring a third parameter value of the working parameter when the reference heating time corresponding to the first variable quantity is reached;

and obtaining the difference between the third parameter value and the first variable quantity to obtain the reduced target parameter value.

7. The method of claim 6, wherein controlling the cooking appliance to perform a pressure holding phase at the reduced target parameter value comprises:

controlling the corresponding pressure maintaining time of the pressure maintaining stage to be prolonged;

and controlling the cooking appliance to execute the pressure maintaining stage according to the reduced target parameter value and the prolonged pressure maintaining time.

8. The method of claim 1, wherein the cooking appliance is an electric pressure cooker.

9. A control device for a cooking appliance, comprising:

the cooking device comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring the reference heating time of the cooking device under the condition that the cooking device is detected to be pressed upwards;

a second obtaining module, configured to obtain a parameter value of an operating parameter of the cooking appliance during at least one of the reference heating times, where the operating parameter includes at least one of: the pressure and temperature in the cooker;

the first determining module is used for determining the variation of the working parameter in each reference heating time based on the parameter value of the working parameter;

a second determination module for determining whether the cooking appliance is air-leaking based on the determined at least one variation;

and the control module is used for controlling the target parameter value of the working parameter to be reduced under the condition that the gas leakage of the cooking appliance is determined, and controlling the cooking appliance to execute a pressure maintaining stage according to the reduced target parameter value.

10. The apparatus of claim 9, wherein the second obtaining module comprises:

an acquiring unit configured to acquire a target variation corresponding to the reference heating time;

a comparison unit configured to compare the determined amount of change with the target amount of change;

wherein if the variation is smaller than the target variation, determining that the cooking appliance is leaking; and determining that the cooking appliance is airtight when the variation is equal to the target variation.

11. The apparatus of claim 9, wherein the second obtaining module comprises:

a comparison unit configured to compare the determined plurality of variations with the target variation;

wherein if any one of the variation amounts is smaller than the target variation amount, determining that the cooking appliance is leaking; and determining that the cooking utensil is airtight when the plurality of variation amounts are equal to the target variation amount.

12. The apparatus of claim 9, wherein the second obtaining module comprises:

a comparison unit configured to compare the determined plurality of variations;

wherein, when any one of the variation amounts is smaller than other variation amounts, the air leakage of the cooking utensil is determined; and determining that the cooking utensil is airtight when the plurality of variation amounts are equal.

13. A storage medium characterized by comprising a stored program, wherein an apparatus in which the storage medium is located is controlled to execute the control method of the cooking appliance according to any one of claims 1 to 8 when the program is executed.

14. A processor, characterized in that the processor is configured to run a program, wherein the program is configured to execute the control method of the cooking appliance according to any one of claims 1 to 8 when running.