Detection method, device, electronic equipment and pressure cooker

CN116211128BActive Publication Date: 2026-10-09GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202211554956.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-02
Publication Date
2026-10-09
Estimated Expiration
2042-12-02

AI Technical Summary

Technical Problem

然而,从传感器本身的输出信号上不能直接有效地识别其失效

Benefits of technology

[0031] This application provides a detection method, device, electronic device, and pressure cooker, which acquires the real-time temperature inside the pressure cooker and the opening/closing state of the pressure detection device; and detects the pressure detection device based on the real-time temperature and opening/closing state, thereby enabling the detection of whether the pressure detection device is malfunctioning.

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Abstract

The application provides a detection method and device, electronic equipment, a pressure cooker and a storage medium. The real-time temperature in the pressure cooker and the opening and closing state of the pressure detection device are obtained. The pressure detection device is detected based on the real-time temperature and the opening and closing state, so that whether the pressure detection device is invalid can be detected.
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Description

Technical Field

[0001] This application relates to the field of pressure cooker control technology, and in particular to a detection method, device, electronic device and pressure cooker. Background Technology

[0002] For pressure cookers with an open-lid cooking function, to minimize costs, the pressure detection device uses only one sensor. Pressure directly determines cooking performance, taste, and cooking time, and is also related to operational safety. Therefore, it is essential to ensure the pressure sensor is in place and operating stably under all operating conditions of the machine. However, a failure of the sensor cannot be directly and effectively identified from its output signal. Summary of the Invention

[0003] To address the aforementioned issues, this application provides a detection method, apparatus, electronic device, and pressure cooker, capable of detecting pressure through real-time temperature and opening / closing status.

[0004] This application provides a detection method, including:

[0005] The real-time temperature inside the pressure cooker and the opening / closing status of the pressure detection device are obtained.

[0006] The pressure detection device is used to detect pressure based on the real-time temperature and opening / closing status.

[0007] In some embodiments, detecting the pressure based on the real-time temperature and opening / closing state includes:

[0008] Determine whether the real-time temperature is within a first temperature range, wherein the temperature in the first temperature range is less than the temperature corresponding to the critical pressure of the pressure detection device.

[0009] If the real-time temperature is in the first temperature range, the opening / closing state is in the off state, and the off state is maintained for a duration greater than a first preset duration, the pressure detection device is determined to be faulty.

[0010] In some embodiments, detecting the pressure based on the real-time temperature and opening / closing state includes:

[0011] Determine whether the real-time temperature is in the second temperature range, where the temperature in the second temperature range is greater than the temperature in the first temperature range, and the maximum value of the second temperature range is greater than the temperature corresponding to the critical pressure.

[0012] If the real-time temperature is in the second temperature range, the opening / closing state is in the closed state, and the duration of the closed state reaches the second preset duration, the pressure detection device is determined to be faulty, wherein the first preset duration is less than the second preset duration.

[0013] In some embodiments, the pressure detection device is tested based on the real-time temperature and the opening / closing state, including:

[0014] Determine whether the real-time temperature is within a third temperature range, where the temperature in the third temperature range is greater than the temperature in the second temperature range;

[0015] If the real-time temperature is within the third temperature range, the opening / closing state is the closed state, and the duration of the closed state reaches the first preset duration, the pressure detection device is determined to be faulty.

[0016] In some embodiments, detecting the pressure based on the real-time temperature and opening / closing state includes:

[0017] The real-time pressure inside the pressure cooker is determined based on the real-time temperature.

[0018] The pressure detection device is used to detect pressure based on the real-time pressure and the opening / closing state.

[0019] In some embodiments, the pressure detection device is used to detect pressure based on the real-time pressure and the opening / closing state, including:

[0020] If the real-time pressure is in the first pressure range, the opening / closing state is in the off state, and the off state is maintained for a duration greater than a first preset duration, the pressure detection device is determined to be faulty, wherein the pressure in the first pressure range is less than the critical pressure of the pressure detection device.

[0021] If the real-time pressure is in the second pressure range, the opening / closing state is in the closed state, and the duration of the closed state reaches the second preset duration, the pressure detection device is determined to be faulty.

[0022] If the real-time pressure is in the third pressure range, the opening / closing state is the closed state, and the duration of the closed state is greater than the first preset duration, the pressure detection device is determined to be faulty. The first preset duration is less than the second preset time, the pressure in the first pressure range is less than the pressure in the second pressure range, the pressure in the second pressure range is less than the pressure in the third pressure range, and the maximum pressure in the second pressure range is greater than the critical pressure.

[0023] In some embodiments, the method further includes:

[0024] If the pressure detection device is found to be faulty, the pressure cooker is controlled to enter a protection state. In the protection state, the pressure cooker stops working and outputs a prompt message.

[0025] This application provides a control device, including:

[0026] The acquisition module is used to acquire the real-time temperature inside the pressure cooker and the opening / closing status of the pressure detection device;

[0027] The detection module is used to detect the pressure detection device based on the real-time temperature and opening / closing status.

[0028] This application provides an electronic device, including a memory and a processor. The memory stores a computer program, which, when executed by the processor, performs the detection method described in any of the above-mentioned embodiments.

[0029] This application provides a pressure cooker, including: the electronic device, temperature sensor, and pressure detection device described above, wherein the electronic device is communicatively connected to the temperature sensor and pressure detection device.

[0030] This application provides a computer-readable storage medium storing a computer program that can be executed by one or more processors and can be used to implement the detection method described above.

[0031] This application provides a detection method, device, electronic device, and pressure cooker, which acquires the real-time temperature inside the pressure cooker and the opening / closing state of the pressure detection device; and detects the pressure detection device based on the real-time temperature and opening / closing state, thereby enabling the detection of whether the pressure detection device is malfunctioning. Attached Figure Description

[0032] The present application will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0033] Figure 1 A schematic diagram illustrating the implementation flow of a detection method provided in an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the structure of a detection device provided in an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the composition structure of the electronic device provided in the embodiments of this application.

[0036] In the accompanying drawings, the same parts are referred to by the same reference numerals, and the drawings are not drawn to scale. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] In the following description, references are made to “some embodiments,” which describe a subset of all possible embodiments. However, it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0039] If the application documents contain similar descriptions such as "first, second, third", the following explanation shall be added: In the following description, the terms "first, second, third" are used only to distinguish similar objects and do not represent a specific order of objects. It is understood that "first, second, third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0041] To address the problems existing in related technologies, this application provides a detection method. This method is applied to electronic devices such as computers, mobile terminals, and pressure cookers. The mobile terminal may include mobile phones, tablets, etc. In some embodiments, the electronic device may be the controller of the pressure cooker. The functionality of the detection method provided in this application can be implemented by the processor of the electronic device calling program code, wherein the program code can be stored in a computer storage medium.

[0042] Example 1

[0043] This application provides a detection method that eliminates the need for additional hardware to assist in identifying pressure detection device failures. Figure 1 This is a schematic diagram illustrating the implementation flow of a detection method provided in an embodiment of this application, as shown below. Figure 1 As shown, it includes:

[0044] Step S101: Obtain the real-time temperature inside the pressure cooker and the opening / closing status of the pressure detection device.

[0045] In this embodiment, the pressure cooker's operating states may include: standby, function selection, flavor selection, timer setting, timer countdown, cooking, keep warm, and protection state. The protection state is independent of other operating states.

[0046] In this embodiment, to save on the cost of the pressure cooker, it is a single-sensor pressure cooker, with a temperature sensor installed at the bottom and no temperature sensor at the top. In this embodiment, the electronic device can obtain the temperature of the heating plate at the bottom of the pot using the temperature sensor, and determine the real-time temperature inside the pot based on the temperature of the heating plate. In this embodiment, a correspondence between the temperature of the heating plate and the temperature inside the pot can be pre-established; once the temperature of the heating plate is obtained, the real-time temperature inside the pressure cooker can be determined.

[0047] In this embodiment, the electronic device can be communicatively connected to a pressure detection device, which outputs a level signal. The electronic device can determine the open / closed state of the pressure detection device based on the level signal. The open / closed state can include an open state and a closed state. In the open state, the pressure detection device outputs a low level signal, and in the closed state, the pressure detection device outputs a high level signal. The electronic device can determine the open / closed state based on the level signal.

[0048] In this embodiment, the pressure detection device has a preset critical value for a closed or open state. When the pressure detected by the pressure detection device is greater than the critical value, the pressure detection device is theoretically in an open state. When the pressure detected by the pressure detection device is less than the critical pressure value, the pressure detection device is theoretically in a closed state.

[0049] In this embodiment of the application, the pressure detection device may be a pressure switch.

[0050] Step S102: The pressure detection device is tested based on the real-time temperature and opening / closing status.

[0051] In this embodiment, the real-time temperature can be compared with the magnitude of various temperature ranges, and the pressure detection device can be tested based on the magnitude relationship, the open / closed state, and the duration of the open / closed state. In this embodiment, the detection result can include: failure and normal operation.

[0052] In this embodiment of the application, step S102 can be implemented through the following steps:

[0053] Step S1021: Determine whether the real-time temperature is within the first temperature range.

[0054] In this embodiment, the first temperature range can be considered as the temperature range corresponding to the low-pressure stage. For example, the critical value of the pressure detection device is 90 kPa, and the pressure value corresponding to the low-pressure stage is 0 kPa-85 kPa, which can be converted into the temperature of the water in the boiler, T0℃-T1℃, using the steam equation. By setting T0 and T1 as theoretical thresholds, T0 and T1 are compared with the real-time temperature T to determine whether T is within the first temperature range.

[0055] In this embodiment of the application, the pressure is input into a first calculation model to calculate the temperature corresponding to the pressure; wherein, the first calculation model includes: in, 0 For pressure, T W 0 Let A be the temperature of the water in the pot, and let A, B, and C be constants.

[0056] In this embodiment, the Antoine equation, derived from engineering experiments, is applicable to the calculation of the saturated vapor pressure of most compounds. The pressure cooker, where water molecules are heated in a closed space, perfectly suits the environment in which the Antoine equation applies. Pressure can be converted into temperature using this equation.

[0057] Step S1022: If the real-time temperature is in the first temperature range, the opening / closing state is in the off state, and the off state duration is greater than the first preset duration, then the pressure detection device is determined to be faulty.

[0058] In this embodiment, the pressure detection device should theoretically be in a closed state when the temperature is in the first temperature range. If the real-time temperature is in the first temperature range, the open / closed state is open, and the open / closed state is maintained for a duration greater than a first preset time, the pressure detection device is determined to be faulty.

[0059] In this embodiment, since the temperature range of each stage, such as the low-pressure stage, critical pressure stage, high-pressure stage, buffer stage, and gravity hammer pressure stage, varies depending on the amount of rice, water, and power consumed, the critical temperature value corresponding to each stage will also change. Therefore, the closing or opening time of the pressure detection device is uncertain. Thus, it is necessary to detect the duration of the open or closed state, allowing for a certain margin. Whether the amount of rice or water is increased or the power is increased, or vice versa, the accuracy of the identification must be ensured. In this embodiment, the detection duration can be configured. For example, the first preset detection duration can be configured to 15 seconds.

[0060] In this embodiment of the application, if the real-time temperature is in the first temperature range and the opening / closing state is in the closed state, it indicates that the pressure detection device is normal.

[0061] In some embodiments, step S102, detecting the pressure detection device based on the real-time temperature and the opening / closing state, can be implemented through the following steps:

[0062] Step S1023: determining whether the real-time temperature is within a second temperature interval, wherein the temperature of the second temperature interval is higher than the temperature of the first temperature interval, and the maximum value of the second temperature interval is higher than the temperature corresponding to the critical pressure.

[0063] For example, the second temperature interval may be a temperature interval corresponding to a critical pressure stage. For example, the pressure of the critical pressure stage is 85KPa-95KPa, which is converted into the temperature T1°C-T2°C of the water in the pot by using the steam equation, T1 and T2 are set as theoretical thresholds, and T1°C-T2°C can be compared with the real-time temperature T.

[0064] Step S1024: when the real-time temperature is within the second temperature interval, the opening / closing state is a closed state, and the duration of the closed state reaches a second preset duration, determining that the pressure detection device is invalid, wherein the first preset duration is less than the second preset duration.

[0065] The second preset duration can be configured, for example, the second preset duration may be 60s.

[0066] Following the above example, if T1 < T ≤ T2 and the opening / closing state of the pressure detection device is continuously detected as the closed state for 60s at this time, it is determined to be invalid.

[0067] In the embodiments of the present application, the second preset duration may be a transition time, which needs to ensure that the maximum low pressure value can be heated to the critical value.

[0068] In the embodiments of the present application, when the real-time temperature is within the second temperature interval and the opening / closing state is an open state, it is determined that the pressure detection device is normal.

[0069] In some embodiments, step S102, detecting the pressure detection device based on the real-time temperature and the opening / closing state, can be implemented through the following steps:

[0070] Step S1025: determining whether the real-time temperature is within a third temperature interval, wherein the temperature of the third temperature interval is higher than the temperature of the second temperature interval.

[0071] In the embodiments of the present application, the third temperature interval may be a temperature corresponding to a high pressure stage. Following the above example, the pressure value corresponding to the third temperature interval is 95KPa-180KPa, which is converted into the water temperature T2°C-T3°C in the pot by using the steam equation, T2 and T3 are set as theoretical thresholds, and T2°C-T3°C is compared with the real-time temperature.

[0072] In step S1026, if the real-time temperature is within the third temperature interval, the opening-closing state is the closed state, and the duration of the closed state reaches the first preset duration, it is determined that the pressure detection device fails.

[0073] If T2 < T ≤ T3 and the pressure switch is continuously detected to be in the closed state for 15s at this time, it is determined that the device fails.

[0074] When the real-time temperature is in the third temperature interval and the opening-closing state remains the closed state, it is determined that the pressure detection device operates normally.

[0075] In some embodiments, when the pressure value in the gravity hammer pressing stage is greater than or equal to 180KPa, the corresponding temperature is T4, and T4 is less than or equal to T. When this stage is reached during the cooking process, the pressure will lift the gravity hammer, and the pressure in the cooker will be quickly released. At this time, the pressure in the cooker is not a definite value, so it is necessary to detect the temperature in real time, determine which temperature interval the temperature falls into based on the real-time temperature, and then judge whether the pressure detection device fails based on the temperature interval and the opening-closing state of the pressure detection device.

[0076] In some embodiments, step S102 can also be implemented by the following steps:

[0077] In step S1027, the real-time pressure inside the pressure cooker is determined based on the real-time temperature.

[0078] In the embodiments of the present application, the real-time pressure inside the cooker corresponding to the real-time temperature can be obtained based on the Antoine steam equation.

[0079] In step S1028, the pressure detection device is detected based on the real-time pressure and the opening-closing state.

[0080] In the embodiments of the present application, the pressure can be divided into four pressure intervals. By way of example, 0KPa-85KPa is the first pressure interval, 85KPa-95KPa is the second pressure interval, 95KPa-180KPa is the third pressure interval, and pressure greater than 180KPa is another interval. The relationship between the real-time pressure and the pressure intervals can be compared, and the pressure detection device can be detected by combining the opening-closing state.

[0081] In the embodiments of the present application, said detecting the pressure detection device based on the real-time pressure and the opening-closing state includes:

[0082] If the real-time pressure is within the first pressure interval, the opening-closing state is the open state, and the duration of the open state is longer than the first preset duration, it is determined that the pressure detection device fails, wherein the pressure of the first pressure interval is lower than the critical pressure of the pressure detection device;

[0083] If the real-time pressure is in the second pressure range, the opening / closing state is in the closed state, and the duration of the closed state reaches the second preset duration, the pressure detection device is determined to be faulty.

[0084] If the real-time pressure is in the third pressure range, the opening / closing state is the closed state, and the duration of the closed state is greater than the first preset duration, the pressure detection device is determined to be faulty. The first preset duration is less than the second preset time, the pressure in the first pressure range is less than the pressure in the second pressure range, the pressure in the second pressure range is less than the pressure in the third pressure range, and the maximum pressure in the second pressure range is greater than the critical pressure.

[0085] In some embodiments, after step S102, the method further includes:

[0086] Step S103: If the pressure detection device is determined to be faulty, the pressure cooker is controlled to enter a protection state. In the protection state, the pressure cooker stops working and outputs a prompt message.

[0087] In this embodiment of the application, fault protection code can be executed to maintain the protection status, and the output prompt information may include: displaying the fault code and providing a warning.

[0088] The detection method provided in this application acquires the pot bottom temperature in real time, adaptively calculates the real-time pressure inside the pot using the Antoni steam equation program, and classifies the pressure values ​​into levels based on the actual opening and closing status of the pressure switch in the experiment. It then uses the pressure values ​​and the opening and closing status of the pressure detection device to determine whether the detection device has failed, providing the failure judgment conditions for each level. This novel software control method, without increasing any hardware costs, comprehensively monitors the failure status of the pressure switch detection device in real time.

[0089] Example 2

[0090] Based on the foregoing embodiments, this application provides a detection device. The modules and units included in the device can be implemented by a processor in a computer device; of course, they can also be implemented by specific logic circuits. In the implementation process, the processor can be a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP), or a field programmable gate array (FPGA), etc.

[0091] This application provides a control device. Figure 2 This is a schematic diagram of the structure of a detection device provided in an embodiment of this application, as shown below. Figure 2 As shown, the detection device 200 includes:

[0092] The acquisition module 201 is used to acquire the real-time temperature inside the pressure cooker and the opening / closing status of the pressure detection device;

[0093] The detection module 202 is used to detect the pressure detection device based on the real-time temperature and the opening / closing status.

[0094] In some embodiments, detecting the pressure based on the real-time temperature and opening / closing state includes:

[0095] Determine whether the real-time temperature is within a first temperature range, wherein the temperature in the first temperature range is less than the temperature corresponding to the critical pressure of the pressure detection device.

[0096] If the real-time temperature is in the first temperature range, the opening / closing state is in the off state, and the off state is maintained for a duration greater than a first preset duration, the pressure detection device is determined to be faulty.

[0097] In some embodiments, detecting the pressure based on the real-time temperature and opening / closing state includes:

[0098] Determine whether the real-time temperature is in the second temperature range, where the temperature in the second temperature range is greater than the temperature in the first temperature range, and the maximum value of the second temperature range is greater than the temperature corresponding to the critical pressure.

[0099] If the real-time temperature is in the second temperature range, the opening / closing state is in the closed state, and the duration of the closed state reaches the second preset duration, the pressure detection device is determined to be faulty, wherein the first preset duration is less than the second preset duration.

[0100] In some embodiments, the pressure detection device is tested based on the real-time temperature and the opening / closing state, including:

[0101] Determine whether the real-time temperature is within a third temperature range, where the temperature in the third temperature range is greater than the temperature in the second temperature range;

[0102] If the real-time temperature is within the third temperature range, the opening / closing state is the closed state, and the duration of the closed state reaches the first preset duration, the pressure detection device is determined to be faulty.

[0103] In some embodiments, detecting the pressure based on the real-time temperature and opening / closing state includes:

[0104] The real-time pressure inside the pressure cooker is determined based on the real-time temperature.

[0105] The pressure detection device is used to detect pressure based on the real-time pressure and the opening / closing state.

[0106] In some embodiments, the pressure detection device is used to detect pressure based on the real-time pressure and the opening / closing state, including:

[0107] If the real-time pressure is in the first pressure range, the opening / closing state is in the off state, and the off state is maintained for a duration greater than a first preset duration, the pressure detection device is determined to be faulty, wherein the pressure in the first pressure range is less than the critical pressure of the pressure detection device.

[0108] If the real-time pressure is in the second pressure range, the opening / closing state is in the closed state, and the duration of the closed state reaches the second preset duration, the pressure detection device is determined to be faulty.

[0109] If the real-time pressure is in the third pressure range, the opening / closing state is the closed state, and the duration of the closed state is greater than the first preset duration, the pressure detection device is determined to be faulty. The first preset duration is less than the second preset time, the pressure in the first pressure range is less than the pressure in the second pressure range, the pressure in the second pressure range is less than the pressure in the third pressure range, and the maximum pressure in the second pressure range is greater than the critical pressure.

[0110] In some embodiments, the detection device 200 is further configured to:

[0111] If the pressure detection device is found to be faulty, the pressure cooker is controlled to enter a protection state. In the protection state, the pressure cooker stops working and outputs a prompt message.

[0112] It should be noted that, in the embodiments of this application, if the above-described detection method is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), magnetic disks, or optical disks. Thus, the embodiments of this application are not limited to any specific hardware and software combination.

[0113] Accordingly, embodiments of this application provide a computer-readable storage medium storing a computer program thereon, characterized in that the computer program, when executed by a processor, implements the steps in the detection method provided in the above embodiments.

[0114] Example 3

[0115] This application provides an electronic device; Figure 3 This is a schematic diagram of the composition structure of the electronic device provided in the embodiments of this application, such as... Figure 3 As shown, the electronic device 700 includes: a processor 701, at least one communication bus 702, a user interface 703, at least one external communication interface 704, and a memory 705. The communication bus 702 is configured to enable communication between these components. The user interface 703 may include a control panel, and the external communication interface 704 may include standard wired and wireless interfaces. The processor 701 is configured to execute a program of a detection method stored in the memory to implement the steps of the detection method provided in the above embodiments.

[0116] The descriptions of the above embodiments of the electronic devices and storage media are similar to those of the above method embodiments, and have similar beneficial effects. For technical details not disclosed in the embodiments of the computer devices and storage media of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0117] It should be noted that the descriptions of the storage medium and device embodiments above are similar to those of the method embodiments above, and have similar beneficial effects. For technical details not disclosed in the storage medium and device embodiments of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0118] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of this application, the sequence numbers of the above-described processes do not imply a sequential order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. The sequence numbers of the above-described embodiments are merely descriptive and do not represent the superiority or inferiority of the embodiments.

[0119] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0120] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the controlled or discussed components can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0121] The units described above as separate components may or may not be physically separate. The components controlled by the units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0122] In addition, each functional unit in the various embodiments of this application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0123] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media that can store program code, such as mobile storage devices, read-only memory (ROM), magnetic disks, or optical disks.

[0124] Alternatively, if the integrated units described above are implemented as software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a controller to execute all or part of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0125] The above description is merely an embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A detection method, characterized in that, include: The real-time temperature and pressure detection status inside the pressure cooker are obtained. The pressure cooker is a single-sensor pressure cooker, with a temperature sensor installed at the bottom of the pressure cooker to acquire the temperature of the heating plate at the bottom of the pot; acquiring the real-time temperature inside the pressure cooker includes: when the temperature of the heating plate is acquired, determining the real-time temperature inside the pressure cooker based on a pre-established correspondence between the temperature of the heating plate and the temperature inside the pot. The pressure detection device is used to detect the pressure based on the real-time temperature and opening / closing status. The pressure detection device is used to detect pressure based on the real-time temperature and opening / closing status, including: Determine whether the real-time temperature is within a first temperature range, wherein the temperature in the first temperature range is less than the temperature corresponding to the critical pressure of the pressure detection device. If the real-time temperature is in the first temperature range, the opening / closing state is in the off state, and the off state is maintained for a duration greater than a first preset duration, the pressure detection device is determined to be faulty. Determine whether the real-time temperature is in the second temperature range, where the temperature in the second temperature range is greater than the temperature in the first temperature range, and the maximum value of the second temperature range is greater than the temperature corresponding to the critical pressure. If the real-time temperature is in the second temperature range, the opening / closing state is the closed state, and the duration of the closed state reaches the second preset duration, the pressure detection device is determined to be faulty, wherein the first preset duration is less than the second preset duration. Determine whether the real-time temperature is within a third temperature range, where the temperature in the third temperature range is greater than the temperature in the second temperature range; If the real-time temperature is in the third temperature range, the opening / closing state is the closed state, and the duration of the closed state reaches the first preset duration, the pressure detection device is determined to be faulty. The cooking stages of the pressure cooker include a low-pressure stage, a critical-pressure stage, a high-pressure stage, a buffer stage, and a gravity hammer pressure stage; the first temperature range is the temperature range corresponding to the low-pressure stage, the second temperature range is the temperature range corresponding to the critical-pressure stage, and the third temperature range is the temperature range corresponding to the high-pressure stage. The pressure value during the low-pressure stage is converted into a temperature range of the water inside the boiler using the steam equation and determined as the first temperature range; specifically, this includes: inputting the pressure value into a first calculation model to calculate the temperature corresponding to the pressure value; the first calculation model includes: ; in, For pressure, The temperature of the water in the pot. It is a constant.

2. The method according to claim 1, characterized in that, The pressure detection device is used to detect pressure based on the real-time temperature and opening / closing status, including: The real-time pressure inside the pressure cooker is determined based on the real-time temperature. The pressure detection device is used to detect pressure based on the real-time pressure and the opening / closing state.

3. The method according to claim 2, characterized in that, The pressure detection device is used to detect pressure based on the real-time pressure and the opening / closing state, including: If the real-time pressure is in the first pressure range, the opening / closing state is in the off state, and the off state is maintained for a duration greater than a first preset duration, the pressure detection device is determined to be faulty, wherein the pressure in the first pressure range is less than the critical pressure of the pressure detection device. If the real-time pressure is in the second pressure range, the opening / closing state is in the closed state, and the duration of the closed state reaches the second preset duration, the pressure detection device is determined to be faulty. If the real-time pressure is in the third pressure range, the opening / closing state is the closed state, and the duration of the closed state is greater than the first preset duration, the pressure detection device is determined to be faulty. The first preset duration is less than the second preset duration, the pressure in the first pressure range is less than the pressure in the second pressure range, the pressure in the second pressure range is less than the pressure in the third pressure range, and the maximum pressure in the second pressure range is greater than the critical pressure.

4. The method according to any one of claims 1-3, characterized in that, The method further includes: If the pressure detection device is found to be faulty, the pressure cooker is controlled to enter a protection state. In the protection state, the pressure cooker stops working and outputs a prompt message.

5. A control device, characterized in that, include: The acquisition module is used to acquire the real-time temperature inside the pressure cooker and the opening / closing status of the pressure detection device; The pressure cooker is a single-sensor pressure cooker, with a temperature sensor installed at the bottom of the pressure cooker to acquire the temperature of the heating plate at the bottom of the pot; acquiring the real-time temperature inside the pressure cooker includes: when the temperature of the heating plate is acquired, determining the real-time temperature inside the pressure cooker based on a pre-established correspondence between the temperature of the heating plate and the temperature inside the pot. The detection module is used to detect the pressure detection device based on the real-time temperature and opening / closing status; The pressure detection device is used to detect pressure based on the real-time temperature and opening / closing status, including: Determine whether the real-time temperature is within a first temperature range, wherein the temperature in the first temperature range is less than the temperature corresponding to the critical pressure of the pressure detection device. If the real-time temperature is in the first temperature range, the opening / closing state is in the off state, and the off state is maintained for a duration greater than a first preset duration, the pressure detection device is determined to be faulty. Determine whether the real-time temperature is in the second temperature range, where the temperature in the second temperature range is greater than the temperature in the first temperature range, and the maximum value of the second temperature range is greater than the temperature corresponding to the critical pressure. If the real-time temperature is in the second temperature range, the opening / closing state is the closed state, and the duration of the closed state reaches the second preset duration, the pressure detection device is determined to be faulty, wherein the first preset duration is less than the second preset duration. Determine whether the real-time temperature is within a third temperature range, where the temperature in the third temperature range is greater than the temperature in the second temperature range; If the real-time temperature is in the third temperature range, the opening / closing state is the closed state, and the duration of the closed state reaches the first preset duration, the pressure detection device is determined to be faulty. The cooking stages of the pressure cooker include a low-pressure stage, a critical-pressure stage, a high-pressure stage, a buffer stage, and a gravity hammer pressure stage; the first temperature range is the temperature range corresponding to the low-pressure stage, the second temperature range is the temperature range corresponding to the critical-pressure stage, and the third temperature range is the temperature range corresponding to the high-pressure stage. The pressure value during the low-pressure stage is converted into a temperature range of the water inside the boiler using the steam equation and determined as the first temperature range; specifically, this includes: inputting the pressure value into a first calculation model to calculate the temperature corresponding to the pressure value; the first calculation model includes: ; in, For pressure, The temperature of the water in the pot. It is a constant.

6. An electronic device, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program that, when executed by the processor, performs the detection method as described in any one of claims 1 to 4.

7. A pressure cooker, characterized in that, include: The electronic device, temperature sensor, and pressure detection device according to claim 6, wherein the electronic device is communicatively connected to the temperature sensor and pressure detection device.

Citation Information

Patent Citations

  • Fault diagnosis device and method for pressure detection device in pressure cooking utensil

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