Calibration method of pressure detection device, cooking control method and pressure cooking utensil

Abstract

The invention discloses a calibration method of a pressure detection device, a cooking control method and a pressure cooking utensil. The method comprises the steps that before a preset cooking function of the pressure cooking utensil is started, the deformation quantity, detected by a pressure detection device of the pressure cooking utensil, of a deformation element is recorded, a first deformation quantity is obtained, and the deformation element is arranged at the bottom of the pressure cooking utensil; after the preset cooking function is started, under the condition that the temperature and the pressure inside the pressure cooking utensil are increased to rated working pressure, the deformation quantity, detected by the pressure detection device, of the deformation element is recorded, and a second deformation quantity is obtained; and the pressure deformation coefficient of the pressure detection device is calibrated according to the difference value of the second deformation quantity and the first deformation quantity and the rated working pressure. Through the pressure detection method and device, the problem that the pressure detection device of the pressure cooking utensil cannot accurately detect the pressure in the pot due to the influence of the individual difference and the use time of the pressure cooking utensil in the related technology is solved.

Description

Technical Field

[0001] The present application relates to the technical field of cooking control, and in particular to a calibration method for a pressure detection device, a cooking control method and a pressure cooking appliance. Background Art

[0002] In order to meet users' demand for convenient cooking methods, pressure cooking appliances came into being.

[0003] During operation, the pressure cooking appliance needs to detect the pressure inside the pot. For pressure cooking appliances where it is not convenient to set a temperature sensor on the top, a deformation (displacement) detection device can be installed to detect the deformation (displacement) caused by the pressure change in the pot and obtain the deformation-pressure proportional coefficient. The pressure in the pot can be reversed based on the deformation-pressure proportional coefficient and the detected deformation (displacement). The deformation (displacement) detection device can become a pot pressure detection device.

[0004] However, due to production process limitations (each electric pressure cooker has certain errors in structure, material strength, component size, assembly, etc.) and component aging caused by increased use, the deformation (displacement) of the components detected by the pressure detection device in the pot is approximately proportional to the pressure in the pot, but the original deformation-pressure proportional coefficient cannot accurately determine the pressure in the pot, affecting the cooking effect.

[0005] In the related art, due to the individual differences of pressure cooking appliances and the influence of usage time, the pressure detection device of the pressure cooking appliance cannot accurately detect the pressure in the pot. No effective solution has been proposed yet. Summary of the invention

[0006] The present application provides a calibration method for a pressure detection device, a cooking control method and a pressure cooking appliance, so as to solve the problem in the related art that the pressure detection device of the pressure cooking appliance cannot accurately detect the pressure in the pot due to individual differences of the pressure cooking appliance and the influence of the usage time.

[0007] According to one aspect of the present application, a calibration method for a pressure detection device is provided. The method comprises: before the preset cooking function of the pressure cooking device is started, recording the deformation of the deformation element detected by the pressure detection device of the pressure cooking device to obtain a first deformation, wherein the deformation element is arranged at the bottom of the pressure cooking device; after the preset cooking function is started, when the temperature and pressure inside the pressure cooking device are increased to the rated working pressure, recording the deformation of the deformation element detected by the pressure detection device to obtain a second deformation; according to the difference between the second deformation and the first deformation and the rated working pressure, calibrating the pressure deformation coefficient of the pressure detection device, wherein the pressure deformation coefficient is used to convert the deformation of the deformation element into the internal pressure of the cooking device. Before the preset cooking function is started and after the preset cooking function is worked to the rated working pressure, the deformation of the deformation element is detected respectively to obtain the first deformation and the second deformation, and the pressure deformation coefficient of the pressure detection device is calibrated according to the first deformation, the second deformation and the rated working pressure, thereby achieving the effect of improving the accuracy of the pressure in the pot of the pressure detection device of the cooking device.

[0008] Optionally, when the temperature and pressure inside the pressure cooking device are increased to the rated working pressure, the deformation of the deformation element detected by the pressure detection device is recorded, and the second deformation is obtained, which includes: in the process of increasing the temperature and pressure inside the pressure cooking device, when the pressure detection device detects that the deformation of the deformation element reaches a preset deformation, the cooking device is controlled to cook according to a preset power, wherein the preset deformation is less than the second deformation; when the pressure detection device detects that the deformation of the deformation element reaches a stable value, the stable value is recorded to obtain the second deformation. The temperature and pressure are first increased until the deformation of the deformation element reaches an intermediate value, and then the deformation of the deformation element is heated at a low power until the deformation reaches a target value, so that the deformation of the deformation element detected by the pressure detection device gradually reaches a stable value without overflowing the pot.

[0009] Optionally, the preset deformation amount is determined by: obtaining the maximum lower deviation value of the deformation element under the rated working pressure; and determining the value of the preset ratio of the maximum lower deviation as the preset deformation amount. The maximum lower deviation value of the deformation element under the rated working pressure is obtained, and the value of the preset ratio of the maximum lower deviation is determined as the preset deformation amount, and the cooking utensil is heated and pressurized until the pressure detection device detects that the deformation amount of the deformation element is the preset deformation amount, and the pot will not overflow. On this basis, heating is performed at a low power, and under the premise of not overflowing the pot, the deformation amount of the deformation element detected by the pressure detection device gradually reaches a stable value.

[0010] Optionally, when the cooking utensil is not cooking for the first time, the preset deformation amount is determined by: obtaining the historical second deformation amount of the deformation element recorded during the last cooking; and determining the value of the preset ratio of the historical second deformation amount as the preset deformation amount. When the cooking utensil is not cooking for the first time, the value of the preset ratio of the historical second deformation amount is determined as the preset deformation amount to more accurately calibrate the pressure detection device.

[0011] According to another aspect of the present application, a cooking control method is provided. The method includes: starting a pressure cooking appliance and determining whether the cooking function selected by the user is a preset cooking function; when the cooking function is the preset cooking function, in the temperature and pressure rising stage and the pressure holding stage, executing a calibration method of a pressure detection device to calibrate the pressure deformation coefficient of the pressure detection device; controlling the pressure cooking appliance to execute a cooking program after the pressure holding stage according to the real-time pressure measured by the pressure detection device until the cooking is finished, wherein the pressure detection device determines the real-time pressure according to the calibrated pressure deformation coefficient and the real-time deformation amount of the deformation element. Before the preset cooking function is started and after working to the rated working pressure, the deformation amount of the deformation element is detected respectively to obtain a first deformation amount and a second deformation amount, and the pressure deformation coefficient of the pressure detection device is calibrated according to the first deformation amount, the second deformation amount and the rated working pressure, thereby achieving the effect of improving the accuracy of the pressure in the pot of the pressure detection device of the cooking appliance without affecting the normal cooking program, thereby improving the accuracy of the pressure control during the cooking process.

[0012] Optionally, the method further includes: when the cooking appliance is cooking for the first time, in the temperature and pressure rising stage and the pressure holding stage, according to the first real-time pressure measured by the pressure detection device, the pressure cooking appliance is controlled to execute the cooking program, wherein the pressure detection device determines the first real-time pressure according to the preset pressure deformation coefficient and the real-time deformation amount of the deformation element; or, when the cooking appliance is not cooking for the first time, in the temperature and pressure rising stage and the pressure holding stage, according to the second real-time pressure measured by the pressure detection device, the pressure cooking appliance is controlled to execute the cooking program, wherein the pressure detection device determines the second real-time pressure according to the pressure deformation coefficient and the real-time deformation amount of the deformation element updated in the last cooking. When the cooking appliance is cooking for the first time, the real-time pressure is determined according to the preset pressure deformation coefficient and the real-time deformation amount of the deformation element, and when the cooking appliance is not cooking for the first time, the real-time pressure is determined according to the pressure deformation coefficient and the real-time deformation amount of the deformation element updated in the last cooking, and the real-time pressure is flexibly determined in different situations, and the pressure control accuracy is improved under the premise of realizing the pressure control in the cooking process.

[0013] Optionally, when determining whether the cooking function selected by the user is a preset cooking function, the method further includes: if the cooking function is not a preset cooking function, when the cooking appliance is cooking for the first time, controlling the pressure cooking appliance to execute the cooking program according to the first real-time pressure measured by the pressure detection device, wherein the pressure detection device determines the first real-time pressure according to the preset pressure deformation coefficient and the real-time deformation amount of the deformation element; or if the cooking function is not a preset cooking function, when the cooking appliance is not cooking for the first time, controlling the pressure cooking appliance to execute the cooking program according to the second real-time pressure measured by the pressure detection device, wherein the pressure detection device determines the second real-time pressure according to the pressure deformation coefficient updated in the last cooking and the real-time deformation amount of the deformation element. If the cooking function is not a preset cooking function, when the cooking appliance is cooking for the first time, determining the real-time pressure according to the preset pressure deformation coefficient and the real-time deformation amount of the deformation element, when the cooking appliance is not cooking for the first time, determining the real-time pressure according to the pressure deformation coefficient updated in the last cooking and the real-time deformation amount of the deformation element, flexibly determining the real-time pressure in different situations, and improving the precision of pressure control under the premise of realizing pressure control in the cooking process.

[0014] According to another aspect of the present application, a pressure cooking appliance is provided, wherein a control module of the pressure cooking appliance is used to execute a cooking control method to cook food in the pressure cooking appliance.

[0015] According to another aspect of the present application, a computer program product is provided, including a non-volatile computer-readable storage medium, the non-volatile computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, a pressure detection device calibration method or a cooking control method is implemented.

[0016] According to another aspect of the present application, an electronic device is also provided, comprising a processor and a memory; the memory stores computer-readable instructions, and the processor is used to run the computer-readable instructions, wherein when the computer-readable instructions are run, a pressure detection device calibration method or a cooking control method is executed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 is a flow chart of a calibration method for a pressure detection device according to an embodiment of the present application;

[0019] Figure 2 is a flow chart of an optional pressure detection device calibration method according to an embodiment of the present application;

[0020] Figure 3 is a flow chart of a cooking control method according to an embodiment of the present application;

[0021] Figure 4 is a flow chart of an optional cooking control method according to an embodiment of the present application;

[0022] Figure 5 is a schematic diagram of a cooking appliance according to an embodiment of the present application;

[0023] Figure 6 is a schematic diagram of a calibration device for a pressure detection device according to an embodiment of the present application;

[0024] Figure 7 is a schematic diagram of a cooking control device according to an embodiment of the present application;

[0025] Figure 8 is a schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] According to an embodiment of the present application, a calibration method for a pressure detection device is provided.

[0030] Figure 1FIG. 1 is a flow chart of a calibration method for a pressure detection device according to an embodiment of the present application. Figure 1 As shown, the method comprises the following steps:

[0031] Step S102, before the preset cooking function of the pressure cooking appliance is started, the deformation amount of the deformation element detected by the pressure detection device of the pressure cooking appliance is recorded to obtain a first deformation amount, wherein the deformation element is arranged at the bottom of the pressure cooking appliance.

[0032] It should be noted that the pressure cooking device may be a pressure cooker, a heating plate is arranged under the inner pot of the pressure cooker, a deformation element is arranged under the heating plate, and the deformation element may be a spring sheet. During the cooking process, the inner pot expands, causing the heating plate to press down, squeezing the deformation element, causing the deformation element to deform and generate a deformation amount. The pressure detection device may detect the deformation amount of the deformation element, and the deformation amount may be a displacement amount. Exemplarily, the pressure detection device may be a linear displacement pressure switch.

[0033] During the cooking process, when the cooking function selected by the user is a preset cooking function, the pressure detection device can be calibrated. After the pressure cooking appliance is powered on and before the user starts the preset cooking function, the pre-deformation amount of the deformation element measured by the pressure detection device when there is no pressure is recorded to obtain the first deformation amount, thereby laying a data foundation for the calibration of the pressure detection device.

[0034] It should be noted that the cooking appliance works within the rated working pressure (i.e., the limiting pressure of the pressure limiting valve). When the internal pressure of the pressure cooking appliance exceeds the rated working pressure, the pressure limiting valve is pushed open due to the excessive pressure difference, so that the internal pressure is released. In the process of calibrating the pressure detection device, the pressure deformation coefficient of the pressure detection device within the rated working pressure is also calibrated. Therefore, it is necessary to measure the deformation of the deformation element when the pressure cooking appliance is stable at the rated working pressure. When the pressure cooking appliance is stable at the rated working pressure, a small amount of exhaust is required. Therefore, in the process of calibrating the pressure detection device, it is necessary to ensure that the pressure cooking appliance does not overflow.

[0035] Optionally, in the calibration method of the pressure detection device provided in the embodiment of the present application, the preset cooking function is used to cook ingredients that do not overflow from the pot when boiling.

[0036] Exemplarily, the preset cooking functions may be functions such as stewing rice, making soup, and cooking. The preset functions cannot be used to cook ingredients that easily overflow from the pot when boiling. Exemplarily, the preset cooking functions cannot be functions such as cooking porridge that easily produce rice milk.

[0037] Step S104, after the preset cooking function is started, when the temperature and pressure inside the pressure cooking appliance are increased to the rated working pressure, the deformation amount of the deformation element detected by the pressure detection device is recorded to obtain a second deformation amount.

[0038] Exemplarily, the pressure cooking appliance operates in the temperature and pressure increase stage, and the heating plate of the pressure cooking appliance is controlled to continuously heat at a low power. When the internal pressure of the pressure cooking appliance slowly and steadily reaches the rated working pressure, the deformation measured by the pressure detection device at this time is recorded to obtain a second deformation.

[0039] It should be noted that when the temperature and pressure are increased to a level where the internal pressure is greater than the pressure of the pressure-limiting valve, the pressure-limiting valve will be pushed open, the heating energy will be converted into water vapor and discharged through the pressure-limiting valve, and the internal pressure will be maintained in a balanced state. Therefore, in this embodiment, if the pressure cooking appliance continues to exhaust air in a small amount, it is determined that the internal pressure has reached the rated working pressure.

[0040] Step S106, calibrating the pressure deformation coefficient of the pressure detection device according to the difference between the second deformation and the first deformation and the rated working pressure, wherein the pressure deformation coefficient is used to convert the deformation of the deformation element into the internal pressure of the cooking appliance.

[0041] It should be noted that the magnitude of the deformation detected by the pressure detection device is approximately proportional to the magnitude of the pressure in the pot. Therefore, the sum of the first deformation recorded in the pressureless state before cooking and the second deformation obtained under the rated working pressure during the low-power continuous boiling stage of cooking is obtained, the difference between the second deformation and the first deformation is calculated, and the ratio of the difference to the rated working pressure is calculated, and the obtained ratio is determined as the calibrated pressure deformation coefficient. The calibrated pressure deformation coefficient is updated and recorded. In the subsequent cooking process, the pressure detection device can use the calibrated pressure deformation coefficient to convert the measured deformation of the deformation element into pressure, and accurately control the cooking process of the pressure cooking appliance according to the converted pressure.

[0042] The calibration method of the pressure detection device provided in the embodiment of the present application is to obtain a first deformation value by recording the deformation value of the deformation element detected by the pressure detection device of the pressure cooking device before the preset cooking function of the pressure cooking device is started, wherein the deformation element is arranged at the bottom of the pressure cooking device; after the preset cooking function is started, when the temperature and pressure inside the pressure cooking device are increased to the rated working pressure, the deformation value of the deformation element detected by the pressure detection device is recorded to obtain a second deformation value; according to the difference between the second deformation value and the first deformation value and the rated working pressure, the pressure deformation coefficient of the pressure detection device is calibrated, wherein the pressure deformation coefficient is used to convert the deformation value of the deformation element into the internal pressure of the cooking device, thereby solving the problem in the related art that the pressure detection device of the pressure cooking device cannot accurately detect the pressure in the pot due to the individual differences of the pressure cooking device and the influence of the use time. The deformation value of the deformation element is detected before the preset cooking function is started and after working to the rated working pressure, respectively, to obtain the first deformation value and the second deformation value, and the pressure deformation coefficient of the pressure detection device is calibrated according to the first deformation value, the second deformation value and the rated working pressure, thereby achieving the effect of improving the accuracy of the pressure in the pot of the pressure detection device of the cooking device.

[0043] In order to accurately measure the second deformation amount, optionally, in the calibration method of the pressure detection device provided in the embodiment of the present application, when the temperature and pressure inside the pressure cooking vessel are increased to the rated working pressure, the deformation amount of the deformation element detected by the pressure detection device is recorded, and obtaining the second deformation amount includes: during the process of increasing the temperature and pressure inside the pressure cooking vessel, when the pressure detection device detects that the deformation amount of the deformation element reaches a preset deformation amount, controlling the cooking vessel to cook at a preset power, wherein the preset deformation amount is less than the second deformation amount; when the pressure detection device detects that the deformation amount of the deformation element reaches a stable value, recording the stable value to obtain the second deformation amount.

[0044] It should be noted that there is thermal inertia during the heating process, and there is a delay in the detection of the pressure detection device. In order to avoid setting the target of the temperature rise and pressure increase stage to the deformation amount corresponding to the rated working pressure, the heating power of the preset cooking function in the temperature rise and pressure increase stage is high, and the temperature rise and pressure increase speed is too fast, resulting in a large exhaust volume and overflowing the pot. In this embodiment, the preset deformation amount is set to the middle value of the temperature rise and pressure increase stage. The preset deformation amount is less than the second deformation amount corresponding to the rated working pressure. When the pressure detection device detects that the deformation amount of the deformation element reaches the middle value, the cooking appliance is controlled to cook according to the preset power until the pressure detection device detects that the deformation amount of the deformation element reaches a stable value to obtain the second deformation amount.

[0045] The preset power is a relatively small power. Optionally, in the calibration method of the pressure detection device provided in the embodiment of the present application, the preset power ranges from 100W to 600W.

[0046] It should be noted that continuous heating at the preset power can push the heating power of the pressure limiting valve without causing overflow. That is, when the rated working pressure has been reached, after the preset power is converted into water vapor after removing the heat loss, all the water vapor is discharged from the pressure limiting valve, and the pressure inside and outside the pressure cooking appliance reaches a dynamic balance. For example, in this embodiment, the preset power can be 300W.

[0047] In this embodiment, the quantitative index of the deformation amount of the deformation element detected by the pressure detection device reaching a stable value can be that within the preset time, the fluctuation mean square error of the deformation amount does not exceed 0.5%, and the trend of the deformation amount does not rise linearly. The preset time varies with the heating cycle. For example, when the heating cycle is 20 seconds for heating once, the preset time ranges from 40 seconds to 3 minutes, for example, it can be 1 minute.

[0048] In this embodiment, the temperature and pressure are first increased until the deformation of the deformation element reaches an intermediate value, and then heated at a low power until the deformation of the deformation element reaches a target value, so that the pressure detection device detects that the deformation of the deformation element gradually reaches a stable value without overflowing the pot.

[0049] Optionally, in the calibration method of the pressure detection device provided in an embodiment of the present application, the preset deformation amount is determined by: obtaining the maximum lower deviation value of the deformation element under the rated working pressure; and determining the value of a preset proportion of the maximum lower deviation as the preset deformation amount.

[0050] It should be noted that due to installation and production errors, the deformation of the deformation element under the rated working pressure has upper and lower deviations. For example, the normal deformation under 90KPa is 2mm. If the deformation element is thin due to errors, the deformation under 90KPa is only 2.1mm. If the deformation element is thick due to errors, the deformation under 90KPa is only 1.8mm. The lower deviation of the deformation is also the minimum deformation of the deformation element under the rated working pressure, and the upper deviation of the deformation is also the maximum deformation of the deformation element under the rated working pressure.

[0051] This embodiment obtains the maximum lower deviation value of the deformation element under the rated working pressure, and determines the value of a preset proportion of the maximum lower deviation as the preset deformation amount. The cooking appliance is heated and pressurized until the pressure detection device detects that the deformation amount of the deformation element is the preset deformation amount without overflowing. On this basis, heating is performed at a low power, and under the premise of not overflowing, the pressure detection device detects that the deformation amount of the deformation element gradually reaches a stable value.

[0052] It should be noted that if the preset ratio is too small, the heating time required for the deformation element to change from the preset deformation amount to the second deformation amount is too long. If the preset ratio is too large, the temperature and pressure will increase too quickly when the power in the temperature and pressure increase stage is too large, resulting in overflow. When the value of the preset ratio of the maximum lower deviation is determined as the preset deformation, the preset ratio of this embodiment can range from 60% to 98%, for example, it can be 90%.

[0053] In order to accurately determine the preset deformation amount, optionally, in the calibration method of the pressure detection device provided in the embodiment of the present application, when the cooking utensil is not cooking for the first time, the preset deformation amount is determined in the following way: obtaining the historical second deformation amount of the deformation element recorded during the last cooking; and determining the value of a preset proportion of the historical second deformation amount as the preset deformation amount.

[0054] It should be noted that, when the cooking appliance is cooking for the first time, the accurate value of the deformation element under the rated working pressure cannot be obtained, and only the deviation range of the deformation element under the rated working pressure can be obtained. Therefore, the preset deformation amount is determined according to the maximum lower deviation value of the deformation amount. When the cooking appliance is not cooking for the first time, the historical second deformation amount of the deformation element under the rated working pressure during the last cooking of the cooking appliance can be obtained, and the value of the preset ratio of the historical second deformation amount can be determined as the preset deformation amount, so as to calibrate the pressure detection device more accurately.

[0055] It should be noted that if the preset ratio is too small, the heating time required for the deformation element to change from the preset deformation variable to the second deformation variable is too long. If the preset ratio is too large, the temperature and pressure will increase too quickly when the power in the temperature and pressure increase stage is too large, resulting in overflow. When the value of the preset ratio of the historical second deformation variable is determined as the preset deformation variable, the preset ratio of this embodiment can range from 60% to 98%, for example, it can be 90%.

[0056] According to an embodiment of the present application, an optional calibration method for a pressure detection device is provided.

[0057] Figure 2 FIG. 1 is a flow chart of a calibration method for an optional pressure detection device according to an embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0058] First, record the zero pressure P 0 The displacement L measured by the pressure detection device 0 .

[0059] Then, the heating is controlled until the displacement reaches L 1 Then, the heating is continued at the first power until the displacement is stable, and the displacement L is recorded. 2 Among them, L 1The maximum lower deviation of the displacement of the pressure cooking appliance under the rated working pressure can be 60%-98% of the maximum lower deviation of the displacement, for example, 90%. The first power can range from 100W to 600W, for example, 300W.

[0060] Finally, according to (L 2 -L 0 ):P m Update the pressure deformation coefficient of the pressure detection device.

[0061] This embodiment calibrates the pressure deformation coefficient of the pressure detection device according to the displacement measured by the pressure detection device at zero pressure, the stable displacement obtained by continuous heating, and the rated working pressure, thereby solving the problem in the related art that the pressure detection device of the pressure cooking appliance cannot accurately detect the pressure in the pot due to individual differences in the pressure cooking appliances and the influence of the usage time, thereby achieving the effect of improving the accuracy of the pressure in the pot of the pressure detection device of the cooking appliance.

[0062] According to an embodiment of the present application, a cooking control method is provided.

[0063] Figure 3 is a flow chart of a cooking control method according to an embodiment of the present application. Figure 3 As shown, the method comprises the following steps:

[0064] Step S302, starting the pressure cooking appliance and determining whether the cooking function selected by the user is a preset cooking function.

[0065] Among them, the pressure cooking appliance can be a pressure cooker, and the preset cooking function can be a cooking function that is not easy to overflow when cooking ingredients. For example, it can be a cooking function such as stewing rice, making soup, and cooking, but it cannot be a function such as cooking porridge that is easy to produce rice milk.

[0066] Step S304, when the cooking function is a preset cooking function, during the temperature and pressure increasing stage and the pressure maintaining stage, a calibration method of the pressure detection device is executed to calibrate the pressure deformation coefficient of the pressure detection device.

[0067] It should be noted that when the internal pressure of the pressure cooking appliance exceeds the rated working pressure, the pressure limiting valve is pushed open due to the excessive pressure difference, thereby releasing the internal pressure. In the process of calibrating the pressure detection device, the pressure cooking appliance needs to be slightly vented when it is stable at the rated working pressure. Therefore, in the case of a preset cooking function that is not easy to overflow when cooking ingredients, the calibration method of the pressure detection device is executed during the temperature and pressure increase stage and the pressure maintaining stage to calibrate the pressure deformation coefficient of the pressure detection device.

[0068] Step S306, controlling the pressure cooking appliance to execute the cooking program after the pressure holding stage according to the real-time pressure measured by the pressure detection device until the cooking is completed, wherein the pressure detection device determines the real-time pressure according to the calibrated pressure deformation coefficient and the real-time deformation of the deformation element.

[0069] That is, after the cooking program in the temperature rising and pressure increasing stage and the pressure maintaining stage of the cooking function is executed, the pressure deformation coefficient of the pressure detection device is calibrated, and the pressure detection device determines the real-time pressure based on the calibrated pressure deformation coefficient and the real-time deformation of the deformation element. In the cooking program after the temperature rising and pressure increasing stage and the pressure maintaining stage, the pressure cooking appliance is controlled according to the real-time pressure to perform cooking until cooking is completed.

[0070] The pressure detection device calibration method provided in the embodiment of the present application starts the pressure cooking appliance and determines whether the cooking function selected by the user is a preset cooking function; when the cooking function is the preset cooking function, the pressure detection device calibration method is executed in the temperature and pressure rising stage and the pressure holding stage to calibrate the pressure deformation coefficient of the pressure detection device; the pressure cooking appliance is controlled to execute the cooking program after the pressure holding stage according to the real-time pressure measured by the pressure detection device until the cooking is finished, wherein the pressure detection device determines the real-time pressure according to the calibrated pressure deformation coefficient and the real-time deformation amount of the deformation element, thereby solving the problem in the related art that the pressure detection device of the pressure cooking appliance cannot accurately detect the pressure in the pot due to the individual differences of the pressure cooking appliance and the influence of the use time. Before the preset cooking function is started and after working to the rated working pressure, the deformation amount of the deformation element is detected respectively to obtain the first deformation amount and the second deformation amount, and the pressure deformation coefficient of the pressure detection device is calibrated according to the first deformation amount, the second deformation amount and the rated working pressure, thereby achieving the effect of improving the accuracy of the pressure in the pot of the pressure detection device of the cooking appliance without affecting the normal cooking program, thereby improving the accuracy of the pressure control during the cooking process.

[0071] Optionally, in the cooking control method provided in the embodiment of the present application, the method also includes: when the cooking appliance is cooking for the first time, during the temperature and pressure rising stage and the pressure maintaining stage, controlling the pressure cooking appliance to execute the cooking program according to the first real-time pressure measured by the pressure detection device, wherein the pressure detection device determines the first real-time pressure according to a preset pressure deformation coefficient and the real-time deformation amount of the deformation element; or, when the cooking appliance is not cooking for the first time, during the temperature and pressure rising stage and the pressure maintaining stage, controlling the pressure cooking appliance to execute the cooking program according to the second real-time pressure measured by the pressure detection device, wherein the pressure detection device determines the second real-time pressure according to the pressure deformation coefficient updated during the last cooking and the real-time deformation amount of the deformation element.

[0072] It should be noted that when the cooking appliance is used for the first time, the accurate value of the deformation element under the rated working pressure cannot be obtained, and only the deviation range of the deformation element under the rated working pressure can be obtained. The preset pressure deformation coefficient is determined according to the maximum lower deviation. The pressure detection device determines the first real-time pressure according to the preset pressure deformation coefficient and the real-time deformation of the deformation element. In the cooking program of the heating and pressure increasing stage and the pressure maintaining stage, the pressure cooking appliance is controlled according to the first real-time pressure to perform cooking.

[0073] When this is not the first time that the cooking utensil is being used for cooking, the pressure deformation coefficient updated during the last cooking of the cooking utensil can be obtained. The pressure detection device determines a second real-time pressure based on the pressure deformation coefficient updated during the last cooking and the real-time deformation of the deformation element. During the cooking procedure in the heating and pressure increasing stage and the pressure maintaining stage, the pressure cooking utensil is controlled according to the second real-time pressure to perform cooking.

[0074] Through this embodiment, when the cooking appliance is cooking for the first time, the real-time pressure is determined based on the preset pressure deformation coefficient and the real-time deformation amount of the deformation element. When the cooking appliance is not cooking for the first time, the real-time pressure is determined based on the pressure deformation coefficient and the real-time deformation amount of the deformation element updated during the last cooking. The real-time pressure can be flexibly determined in different situations, and the accuracy of pressure control can be improved while achieving pressure control during the cooking process.

[0075] Optionally, in the cooking control method provided in the embodiment of the present application, when determining whether the cooking function selected by the user is a preset cooking function, the method further includes: when the cooking function is not the preset cooking function and when the cooking appliance is cooking for the first time, controlling the pressure cooking appliance to execute the cooking program according to the first real-time pressure measured by the pressure detection device, wherein the pressure detection device determines the first real-time pressure according to the preset pressure deformation coefficient and the real-time deformation amount of the deformation element; or when the cooking function is not the preset cooking function and when the cooking appliance is not cooking for the first time, controlling the pressure cooking appliance to execute the cooking program according to the second real-time pressure measured by the pressure detection device, wherein the pressure detection device determines the second real-time pressure according to the pressure deformation coefficient updated during the last cooking and the real-time deformation amount of the deformation element.

[0076] It should be noted that in the process of calibrating the pressure detection device, the pressure cooking appliance needs to be slightly exhausted when it is stable at the rated working pressure. Therefore, when the cooking function is not the preset cooking function, in order to avoid overflowing, the pressure detection device is not calibrated and the cooking appliance is only controlled to cook normally.

[0077] When the cooking appliance is used for the first time to cook, the accurate value of the deformation element under the rated working pressure cannot be obtained, and only the deviation range of the deformation element under the rated working pressure can be obtained. The preset pressure deformation coefficient is determined according to the maximum lower deviation. The pressure detection device determines the first real-time pressure according to the preset pressure deformation coefficient and the real-time deformation of the deformation element. In the cooking program of the heating and pressure increasing stage and the pressure maintaining stage, the pressure cooking appliance is controlled according to the first real-time pressure to perform cooking.

[0078] When this is not the first time that the cooking utensil is being used for cooking, the pressure deformation coefficient updated during the last cooking of the cooking utensil can be obtained. The pressure detection device determines a second real-time pressure based on the pressure deformation coefficient updated during the last cooking and the real-time deformation of the deformation element. During the cooking procedure in the heating and pressure increasing stage and the pressure maintaining stage, the pressure cooking utensil is controlled according to the second real-time pressure to perform cooking.

[0079] Through this embodiment, when the cooking function is not a preset cooking function and when the cooking utensil is cooking for the first time, the real-time pressure is determined based on the preset pressure deformation coefficient and the real-time deformation amount of the deformation element; when the cooking utensil is not cooking for the first time, the real-time pressure is determined based on the pressure deformation coefficient updated during the last cooking and the real-time deformation amount of the deformation element. The real-time pressure is flexibly determined in different situations, and the accuracy of pressure control is improved while achieving pressure control during the cooking process.

[0080] According to an embodiment of the present application, an optional cooking control method is provided.

[0081] Figure 4 FIG. 1 is a flow chart of an optional cooking control method according to an embodiment of the present application. Figure 4 As shown, the method comprises the following steps:

[0082] First, execute the preset cooking program, and then determine whether the cooking function corresponding to the preset cooking program to be executed is a rice function or a soup function: if so, execute the second step; otherwise, complete the cooking according to the preset program.

[0083] Then, determine whether the displacement reaches L 1 Among them, L 1 Less than the rated working pressure P of the pressure cooking appliance m The maximum lower deviation of the displacement can be a certain percentage of the maximum lower deviation, which can be 60%-98%, for example, it can be 90%: if so, execute the next step, otherwise, return to execute the previous step.

[0084] Further, the heating is continued at power P. 1 time, record and save the final stable displacement L 2 , according to (L 2 -L0 ):P m Update the pressure deformation coefficient and execute step 4. The power P may range from 100W to 600W, for example, 300W. 1 The time is greater than the time required for continuous heating at power P until the displacement amount is finally stabilized when the current cooking function allows the maximum capacity of food to be cooked under standard atmospheric pressure, for example, it can be 40s to 3 minutes.

[0085] Finally, complete the subsequent cooking according to the preset cooking program and the cooking is finished.

[0086] In this embodiment, when the cooking function is a cooking function that is not easy to overflow the pot, the pressure deformation coefficient of the pressure detection device is calibrated according to the displacement measured by the pressure detection device at zero pressure, the stable displacement obtained by continuous heating, and the rated working pressure. This solves the problem in the related art that the pressure detection device of the pressure cooking appliance cannot accurately detect the pressure in the pot due to individual differences in the pressure cooking appliance and the influence of the usage time, thereby achieving the effect of improving the accuracy of the pressure in the pot of the pressure detection device of the cooking appliance.

[0087] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0088] According to an embodiment of the present application, a pressure cooking device is also provided. Figure 5 Schematic diagram of a cooking appliance according to an embodiment of the present application. Figure 5 As shown, the pressure cooking device comprises:

[0089] Pot cover, inner pot, heat preservation cover and controller ( Figure 5 The pot cover is provided with a pressure limiting valve and an exhaust pipe, a sealing ring is provided between the heat preservation cover and the inner pot, and a pressure detection device is provided at the bottom of the inner pot.

[0090] When the controller executes the cooking program corresponding to the preset cooking function that is not easy to overflow, the pressure detection device detects the first deformation of the deformation element before the preset cooking function is started, and detects the second deformation of the deformation element after the pressure cooking appliance works to the rated working pressure. The controller calibrates the pressure deformation coefficient of the pressure detection device according to the first deformation, the second deformation and the rated working pressure. Under the premise of not affecting the normal cooking program, dynamic calibration of the pressure detection device is realized, which solves the problem in the related art that the pressure detection device of the pressure cooking appliance cannot accurately detect the pressure in the pot due to individual differences of the pressure cooking appliance and the influence of the usage time, thereby achieving the effect of improving the accuracy of the pressure in the pot of the pressure detection device of the cooking appliance.

[0091] The embodiment of the present application also provides a calibration device for a pressure detection device. It should be noted that the calibration device for a pressure detection device in the embodiment of the present application can be used to execute the calibration method for a pressure detection device provided in the embodiment of the present application. The calibration device for a pressure detection device provided in the embodiment of the present application is introduced below.

[0092] Figure 6 Schematic diagram of a calibration device for a pressure detection device according to an embodiment of the present application. Figure 6 As shown, the device includes: a first recording unit 602 , a second recording unit 604 and a calibration unit 606 .

[0093] The first recording unit 602 is used to record the deformation of the deformation element detected by the pressure detection device of the pressure cooking appliance before the preset cooking function of the pressure cooking appliance is started, and obtain a first deformation, wherein the deformation element is set at the bottom of the pressure cooking appliance.

[0094] The second recording unit 604 is used to record the deformation amount of the deformation element detected by the pressure detection device to obtain a second deformation amount when the temperature and pressure inside the pressure cooking appliance are increased to the rated working pressure after the preset cooking function is started.

[0095] The calibration unit 606 is used to calibrate the pressure deformation coefficient of the pressure detection device according to the difference between the second deformation amount and the first deformation amount and the rated working pressure, wherein the pressure deformation coefficient is used to convert the deformation amount of the deformation element into the internal pressure of the cooking appliance.

[0096] The calibration device of the pressure detection device provided in the embodiment of the present application records the deformation of the deformation element detected by the pressure detection device of the pressure cooking device before the preset cooking function of the pressure cooking device is started, thereby obtaining a first deformation, wherein the deformation element is arranged at the bottom of the pressure cooking device; the second recording unit 604 records the deformation of the deformation element detected by the pressure detection device after the preset cooking function is started, when the temperature and pressure inside the pressure cooking device are increased to the rated working pressure, thereby obtaining a second deformation; the calibration unit 606 calibrates the pressure cooking device according to the difference between the second deformation and the first deformation and the rated working pressure. The pressure deformation coefficient of the force detection device, wherein the pressure deformation coefficient is used to convert the deformation amount of the deformation element into the internal pressure of the cooking appliance, solves the problem in the related art that the pressure detection device of the pressure cooking appliance cannot accurately detect the pressure in the pot due to the individual differences of the pressure cooking appliances and the influence of the usage time. The deformation amount of the deformation element is detected before the preset cooking function is started and after working to the rated working pressure, and the first deformation amount and the second deformation amount are obtained. The pressure deformation coefficient of the pressure detection device is calibrated according to the first deformation amount, the second deformation amount and the rated working pressure, thereby achieving the effect of improving the accuracy of the pressure in the pot of the pressure detection device of the cooking appliance.

[0097] The calibration device of the pressure detection device includes a processor and a memory. The first recording unit 602, the second recording unit 604 and the calibration unit 606 are stored in the memory as program units. The processor executes the program units stored in the memory to realize corresponding functions.

[0098] Figure 7 Schematic diagram of a cooking control device according to an embodiment of the present application. Figure 7 As shown, the device includes: a judging unit 702, a first executing unit 704 and a second executing unit 706.

[0099] The determination unit 702 is used to start the pressure cooking appliance and determine whether the cooking function selected by the user is a preset cooking function.

[0100] The first execution unit 704 is used to execute the calibration method of the pressure detection device to calibrate the pressure deformation coefficient of the pressure detection device during the temperature and pressure increase stage and the pressure maintenance stage when the cooking function is the preset cooking function.

[0101] The second execution unit 706 is used to control the pressure cooking appliance to execute the cooking program after the pressure holding stage according to the real-time pressure measured by the pressure detection device until the cooking is completed, wherein the pressure detection device determines the real-time pressure according to the calibrated pressure deformation coefficient and the real-time deformation amount of the deformation element.

[0102] The cooking control device provided in the embodiment of the present application starts the pressure cooking appliance and determines whether the cooking function selected by the user is a preset cooking function through the judgment unit 702; the first execution unit 704 executes the calibration method of the pressure detection device in the temperature and pressure rising stage and the pressure holding stage to calibrate the pressure deformation coefficient of the pressure detection device when the cooking function is the preset cooking function; the second execution unit 706 controls the pressure cooking appliance to execute the cooking program after the pressure holding stage according to the real-time pressure measured by the pressure detection device until the cooking is finished, wherein the pressure detection device determines the real-time pressure according to the calibrated pressure deformation coefficient and the real-time deformation amount of the deformation element, which solves the problem in the related art that the pressure detection device of the pressure cooking appliance cannot accurately detect the pressure in the pot due to the individual differences of the pressure cooking appliance and the influence of the use time, and detects the deformation amount of the deformation element before the preset cooking function is started and after working to the rated working pressure, respectively, to obtain the first deformation amount and the second deformation amount, and calibrates the pressure deformation coefficient of the pressure detection device according to the first deformation amount, the second deformation amount and the rated working pressure, thereby achieving the effect of improving the accuracy of the pressure in the pot of the pressure detection device of the cooking appliance.

[0103] The calibration device of the pressure detection device includes a processor and a memory. The judgment unit 702, the first execution unit 704 and the second execution unit 706 are all stored in the memory as program units, and the processor executes the program units stored in the memory to realize the corresponding functions.

[0104] The processor includes a kernel, and the kernel retrieves the corresponding program unit from the memory. One or more kernels can be set, and the kernel parameters are adjusted to solve the problem in the related art that the pressure detection device of the pressure cooking appliance cannot accurately detect the pressure in the pot due to individual differences of the pressure cooking appliance and the influence of the use time.

[0105] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0106] An embodiment of the present application further provides a computer storage medium, which is used to store a program, wherein when the program is run, the device where the non-volatile storage medium is located is controlled to execute a calibration method for a pressure detection device.

[0107] The embodiment of the present application also provides an electronic device, Figure 8 is a schematic diagram of an electronic device according to an embodiment of the present application, such as Figure 8As shown, the electronic device 80 includes a processor and a memory; the memory stores computer-readable instructions, and the processor is used to run the computer-readable instructions, wherein when the computer-readable instructions are run, a calibration method for a pressure detection device is executed. The electronic device in this article can be a server, a PC, a PAD, a mobile phone, etc.

[0108] An embodiment of the present application also provides a computer program product, including a non-volatile computer-readable storage medium, the non-volatile computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, a calibration method for a pressure detection device is implemented.

[0109] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0110] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0111] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0112] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0113] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0114] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0115] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0116] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0117] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A method for calibrating a pressure detection device, characterized in that: include: Before a preset cooking function of the pressure cooking appliance is started, recording a deformation amount of a deformation element detected by a pressure detection device of the pressure cooking appliance to obtain a first deformation amount, wherein the deformation element is arranged at the bottom of the pressure cooking appliance; After the preset cooking function is started, when the temperature and pressure inside the pressure cooking appliance are increased to a rated working pressure, the deformation amount of the deformation element detected by the pressure detection device is recorded to obtain a second deformation amount; The pressure deformation coefficient of the pressure detection device is calibrated according to the difference between the second deformation amount and the first deformation amount and the rated working pressure, wherein the pressure deformation coefficient is used to convert the deformation amount of the deformation element into the internal pressure of the cooking utensil.

2. The method according to claim 1, characterized in that When the temperature and pressure inside the pressure cooking appliance are increased to the rated working pressure, the deformation amount of the deformation element detected by the pressure detection device is recorded, and the second deformation amount is obtained, which includes: During the process of increasing the temperature and pressure inside the pressure cooking device, when the pressure detection device detects that the deformation amount of the deformation element reaches a preset deformation amount, controlling the cooking device to cook at a preset power, wherein the preset deformation amount is less than the second deformation amount; When the pressure detection device detects that the deformation amount of the deformation element reaches a stable value, the stable value is recorded to obtain the second deformation amount.

3. The method according to claim 2, characterized in that The preset deformation amount is determined by: Obtaining a maximum lower deviation value of the deformation element under the rated working pressure; A value of a preset ratio of the maximum lower deviation is determined as the preset deformation amount.

4. The method according to claim 2, characterized in that: When the cooking appliance is not cooking for the first time, the preset deformation amount is determined by: Acquire a historical second deformation value of the deformation element recorded during the last cooking; A value of a preset ratio of the historical second deformation amount is determined as the preset deformation amount.

5. A cooking control method, characterized in that: include: Starting the pressure cooking appliance and determining whether the cooking function selected by the user is a preset cooking function; In the case where the cooking function is a preset cooking function, in the temperature and pressure increasing stage and the pressure maintaining stage, the calibration method of the pressure detection device according to any one of claims 1 to 4 is performed to calibrate the pressure deformation coefficient of the pressure detection device; The pressure cooking appliance is controlled to execute the cooking program after the pressure holding stage according to the real-time pressure measured by the pressure detection device until the cooking is completed, wherein the pressure detection device determines the real-time pressure according to the calibrated pressure deformation coefficient and the real-time deformation amount of the deformation element.

6. The method according to claim 5, characterized in that The method further comprises: When the cooking appliance is cooking for the first time, during the temperature and pressure increasing stage and the pressure maintaining stage, the pressure cooking appliance is controlled to execute a cooking procedure according to a first real-time pressure measured by the pressure detecting device, wherein the pressure detecting device determines the first real-time pressure according to a preset pressure deformation coefficient and the real-time deformation amount of the deformation element; or When the cooking appliance is not cooking for the first time, during the temperature and pressure increasing stage and the pressure maintaining stage, the pressure cooking appliance is controlled to execute the cooking program based on the second real-time pressure measured by the pressure detection device, wherein the pressure detection device determines the second real-time pressure based on the pressure deformation coefficient updated during the last cooking and the real-time deformation amount of the deformation element.

7. The method according to claim 5, characterized in that After determining whether the cooking function selected by the user is a preset cooking function, the method further includes: When the cooking function is not the preset cooking function and when the cooking appliance is cooking for the first time, the pressure cooking appliance is controlled to execute a cooking procedure according to a first real-time pressure measured by the pressure detection device, wherein the pressure detection device determines the first real-time pressure according to a preset pressure deformation coefficient and the real-time deformation amount of the deformation element; or When the cooking function is not the preset cooking function and when the cooking appliance is not cooking for the first time, the pressure cooking appliance is controlled to execute the cooking program according to the second real-time pressure measured by the pressure detection device, wherein the pressure detection device determines the second real-time pressure based on the pressure deformation coefficient updated during the last cooking and the real-time deformation amount of the deformation element.

8. A pressure cooking device, characterized in that: The control module of the pressure cooking appliance is used to execute the cooking control method according to any one of claims 5 to 7 to cook the food in the pressure cooking appliance.

9. A computer program product, characterized in that The invention comprises a non-volatile computer-readable storage medium storing a computer program, wherein the computer program implements the method according to any one of claims 1 to 7 when executed by a processor.

10. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 7 through the computer program.

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