Cooking apparatus, and control method, device, storage medium and product thereof

Abstract

The application discloses a cooking device and a control method, device, storage medium and product thereof. The control method comprises: obtaining a detection value indicating the height of the internal space of the cooking device based on a radar sensor; and generating a detection result related to the inner pot of the cooking device based on the detection value and a preset threshold. Since the detection value indicating the height of the internal space of the cooking device can be obtained based on the radar sensor, and then the detection result related to the inner pot is generated based on the detection value and the preset threshold, whether the inner pot is placed in the cooking device can be intelligently identified, the safety hidden danger caused by the missing of the inner pot can be effectively avoided, different types and different materials of the inner pot are compatible, the detection is not affected by external environmental interference factors, the detection reliability is high, and then the fault condition related to the inner pot can be automatically prompted, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of cooking control, and more particularly to a cooking device and its control method, apparatus, storage medium and product. Background Technology

[0002] Electric pressure cookers or rice cookers are sometimes used by users who forget to place the inner pot in the correct position before turning on the power to cook. Because they lack a detection device to check whether the inner pot is in place, the cooking device can continue to heat up, causing the internal heat to continue to generate heat, which can blow the fuse or even cause a fire. Therefore, such cooking devices pose a significant safety hazard and result in a poor user experience. Summary of the Invention

[0003] In view of this, embodiments of this application provide a cooking device and its control method, apparatus, storage medium and product, aiming to achieve intelligent detection of the inner pot in the cooking device and improve the user experience.

[0004] The technical solution of this application embodiment is implemented as follows:

[0005] In a first aspect, embodiments of this application provide a method for controlling a cooking device, the cooking device including an inner pot and a radar sensor, the method comprising:

[0006] Obtain a detection value indicating the height of the internal space of the cooking equipment based on the radar sensor;

[0007] Based on the detected values ​​and preset thresholds, detection results related to the inner pot of the cooking device are generated.

[0008] In some implementations, generating detection results related to the inner pot of the cooking device based on the detected value and a preset threshold includes:

[0009] If the detected value is determined to be greater than or equal to the first preset threshold and less than the second preset threshold, a first detection result indicating that the inner pot is normal is generated.

[0010] Wherein, the first preset threshold is less than the second preset threshold.

[0011] In some implementations, the method further includes:

[0012] The reflectivity of the reflected electromagnetic waves is generated based on the detection signal from the radar sensor.

[0013] Based on the reflectivity and the set reflectivity threshold, a result is generated to identify whether the inner pot of the cooking device is a multi-layered inner pot.

[0014] In some implementations, generating a determination of whether the inner pot of the cooking device is a multi-layered inner pot based on the reflectance and a set reflectance threshold includes:

[0015] If it is determined that the reflectivity is less than or equal to the first reflectivity threshold and greater than the second reflectivity threshold, a first identification result indicating that the inner pot is a single-layer inner pot is generated.

[0016] If the reflectivity is determined to be less than or equal to the second reflectivity threshold, a second identification result indicating that the inner pot is a multi-layered inner pot is generated.

[0017] Wherein, the first reflectivity threshold is greater than the second reflectivity threshold.

[0018] In some implementations, the method further includes:

[0019] If it is determined that the reflectivity is less than or equal to the second reflectivity threshold and greater than the third reflectivity threshold, then a third identification result is generated indicating that the inner pot is a multi-layered inner pot and the top layer is made of metal.

[0020] If it is determined that the reflectivity is less than or equal to the third reflectivity threshold and greater than the fourth reflectivity threshold, then a fourth identification result is generated indicating that the inner pot is a multi-layered inner pot and the top layer is made of non-metallic material.

[0021] Wherein, the second reflectivity threshold is greater than the third reflectivity threshold, and the third reflectivity threshold is greater than the fourth reflectivity threshold.

[0022] In some implementations, the method further includes:

[0023] Based on the current cooking mode and the recognition result, if it is determined that the inner pot placed in the cooking device does not match the current cooking mode, an error reminder message is generated.

[0024] In some implementations, generating detection results related to the inner pot of the cooking device based on the detected value and a preset threshold further includes:

[0025] If the detected value is determined to be greater than or equal to a third preset threshold and less than a first preset threshold, a second detection result indicating excessive food ingredients is generated.

[0026] If the detected value is determined to be less than the third preset threshold, a third detection result indicating the presence of a foreign object obstructing the view is generated.

[0027] If the detected value is determined to be greater than or equal to the second preset threshold and less than the fourth preset threshold, a fourth detection result indicating inner pot deformation or inner pot mismatch is generated.

[0028] If the detected value is determined to be greater than or equal to the fourth preset threshold, a fifth detection result indicating that no inner pot has been placed is generated;

[0029] Wherein, the third preset threshold is less than the first preset threshold, and the fourth preset threshold is greater than the second preset threshold.

[0030] In some implementations, acquiring a detection value indicating the height of the internal space of the cooking device based on the radar sensor includes:

[0031] The transmission time of the electromagnetic wave signal emitted by the radar sensor and the reception time of the reflected electromagnetic wave signal are obtained.

[0032] The detection value is generated based on the propagation delay between the sending time and the receiving time.

[0033] In some implementations, the method further includes:

[0034] The ingredient quantity grade of the cooking equipment is determined based on the detected values;

[0035] Based on the amount and level of the ingredients and the current cooking mode, determine the cooking parameters of the cooking equipment at least during the heating and boiling phases.

[0036] The cooking parameters include at least one of the following: heating power, power ratio, heating temperature threshold, and working time.

[0037] In some implementations, the method further includes:

[0038] The radar sensor is activated in response to the lid of the cooking appliance being closed; and / or,

[0039] The radar sensor is turned off in response to the lid of the cooking device being opened.

[0040] Secondly, embodiments of this application provide a control device for a cooking apparatus, the cooking apparatus including an inner pot and a radar sensor, the control device comprising:

[0041] The acquisition module is used to acquire a detection value indicating the height of the internal space of the cooking equipment based on the radar sensor.

[0042] The control module is used to generate detection results related to the inner pot of the cooking device based on the detected values ​​and preset thresholds.

[0043] Thirdly, embodiments of this application provide a cooking device, the cooking device including an inner pot and a radar sensor, the cooking device further including: a processor and a memory for storing a computer program capable of running on the processor, wherein, when the processor is used to run the computer program, it executes the steps of the method described in the first aspect of embodiments of this application.

[0044] Fourthly, embodiments of this application provide a storage medium storing a computer program, which, when executed by a processor, implements the steps of the method described in the first aspect of embodiments of this application.

[0045] Fifthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the steps of the method described in the first aspect of embodiments of this application.

[0046] The technical solution provided in this application acquires a detection value indicating the height of the internal space of a cooking device based on a radar sensor; based on the detection value and a preset threshold, it generates detection results related to the inner pot of the cooking device. Since the radar sensor can acquire a detection value indicating the height of the internal space of the cooking device, and then generate detection results related to the inner pot based on this detection value and a preset threshold, it can intelligently identify whether an inner pot is placed inside the cooking device, effectively avoiding safety hazards caused by a missing inner pot. Furthermore, it is compatible with different types and materials of inner pots, unaffected by external environmental interference, and has high detection reliability. Therefore, it can automatically alert users to malfunctions related to the inner pot, improving the user experience. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the mechanical structure of the cooking equipment according to an embodiment of this application;

[0048] Figure 2 This is a schematic diagram of the structure of a radar sensor installed on the lid of a cooking device according to an embodiment of this application;

[0049] Figure 3 This is a schematic flowchart of the control method for the cooking equipment according to an embodiment of this application;

[0050] Figure 4 This is a schematic diagram illustrating the principle of the cooking device based on a radar sensor for inner pot detection, which is an application embodiment of this application.

[0051] Figure 5 This is a schematic diagram of the control device of the cooking equipment according to an embodiment of this application;

[0052] Figure 6 This is a schematic diagram of the circuit structure of the cooking device according to an embodiment of this application. Detailed Implementation

[0053] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0054] 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 particular embodiments only and is not intended to be limiting of the application.

[0055] In related technologies, commonly used pot detection structures often require increased circuit complexity and cost or have high requirements for the structural consistency of cooking equipment. For example, mechanical switch detection requires precise matching between the inner pot and the mechanical switch, while photoelectric detection and weight detection are easily affected by ambient light and external vibration, respectively. More comprehensive capacity detection requires the installation of a capacity sensor inside the rice cooker, which increases circuit complexity and cost and is easily affected by the shape of the inner pot. Furthermore, the electromagnetic induction pot detection method generates a weak electromagnetic field around the inner pot. When current flows through the pot, a magnetic field is generated around it. This magnetic field affects the detection coil in the opposite direction, inducing an electromotive force (EMF) in the coil. By measuring the EMF, the magnitude and direction of the current inside the pot can be determined. While this detection technology has advantages such as being non-contact, real-time, and highly accurate, its sensitivity is greatly affected by factors such as the material, size, and shape of the inner pot. Different inner pots may require different detection settings, thus necessitating adjustments for different pots. It also suffers from significant errors. Because the material, thickness, and shape of the inner pot affect the intensity and distribution of the induced current, the measurement error in induced current detection of inner pots is relatively large, potentially leading to misjudgments and missed detections. Finally, it is not suitable for non-metallic inner pots, as induced current detection requires the inner pot to have a certain degree of conductivity, making it unsuitable for non-metallic inner pots such as ceramic or glass.

[0056] Based on this, in various embodiments of this application, a radar sensor is introduced into the cooking device. The radar sensor detects the height of the internal space of the cooking device, and based on the detected value and a preset threshold, generates detection results related to the inner pot of the cooking device, effectively improving the user experience. Specifically, the radar sensor can be located on the lid of the cooking device or in other locations within the device; no specific limitations are imposed here.

[0057] It should be noted that the cooking equipment in this application embodiment can be a rice cooker, electric pressure cooker, or other cooking equipment, and the ingredients to be cooked can include, but are not limited to, rice, beans, and meat.

[0058] like Figure 1As shown, the cooking device may include an inner pot 100 and a lid 200 located on top of the inner pot 100. The cooking device may also include a body 400 supporting the inner pot 100, with the lid 200 hinged to the body 400 and a radar sensor 300 mounted on the lid 200. When the lid 200 is closed onto the body 400, a cooking space is formed between the lid 200 and the inner pot 100. The body 400 may be constructed as a rounded cuboid or any other suitable shape and has a cylindrical storage section. The inner pot 100 may be configured to be freely placed into or removed from the storage section for easy cleaning.

[0059] Exemplarily, the main body 400 also includes a heating device, a control device, and a temperature sensing component (not shown in the figure). The heating device is located at the bottom of the inner pot 100, for example, below the inner pot 100, to heat the food in the inner pot 100. The control device can be, for example, a microprocessor unit (MCU) for controlling the cooking of the food. The temperature sensing component is used to detect the temperature of the inner pot 100, and it can be located at the center of the bottom of the inner pot 100 or on the side of the inner pot 100. Figure 2 As shown, a top temperature sensor 204 can also be provided on the lid 200, and an evaporation valve 203 for pressure relief is also provided at the top of the lid 200. The top temperature sensor 204 is used to detect the temperature in the cooking space. The heating device, the temperature sensing component, and the top temperature sensor 204 are all electrically connected to the control device. The temperature sensing component and the top temperature sensor 204 feed back the sensed temperature to the control device, so that the control device can achieve more precise control of, for example, the heating device, based on the temperature information.

[0060] For example, such as Figure 2 As shown, the radar sensor 300 is disposed on the lid 200. Specifically, a mounting position 201 for mounting the radar sensor 300 is provided on the side of the lid 200 facing the inner pot 100. There is no metal obstruction below the mounting position 201. After the radar sensor 300 is fixed to the mounting position 201, a protective cover 202 can be provided at the mounting position 201 to encapsulate the radar sensor 300, thereby protecting the radar sensor 300 during cooking. The protective cover 202 is made of a non-metallic material, such as plastic or glass.

[0061] Here, the radar sensor detects targets based on electromagnetic waves, and can be millimeter-wave radar, microwave radar, ultra-wideband radar, etc. The radar sensor can include a radar transmitting module, a radar receiving module, and an antenna. The radar transmitting module is a radio device that provides high-power radio frequency signals to the radar sensor, capable of generating high-power radio frequency signals modulated by a carrier wave, i.e., electromagnetic waves. According to the modulation method, transmitting modules can be divided into two categories: continuous wave transmitting modules and pulse transmitting modules. The transmitting module consists of a single-stage radio frequency oscillator and a pulse modulator. The radar receiving module is the device in the radar sensor that performs frequency conversion, filtering, amplification, and demodulation. Through appropriate filtering, the weak high-frequency signal received by the antenna is selected from the accompanying noise and interference, and after amplification and detection, it is used for target detection, display, or other radar signal processing. The antenna is the device in the radar sensor used to transmit or receive electromagnetic waves and determine its detection direction. During transmission, energy is concentrated and radiated in the direction to be illuminated; during reception, the echo in the detection direction is received, and the azimuth and / or elevation angle of the target is determined.

[0062] For example, such as Figure 3 As shown, the control method of the cooking device in this application embodiment includes:

[0063] Step 301: Obtain the detection value indicating the height of the internal space of the cooking equipment based on the radar sensor.

[0064] Here, after the cooking device starts cooking, the radar sensor can detect the height of the internal space of the cooking device based on electromagnetic wave detection. The height of the internal space can be understood as the distance between the upper surface of the inner pot and the radar sensor on the lid. It can be reflected based on the propagation delay between the electromagnetic wave signal emitted and received by the radar sensor. The detection value can be delay data or height data (a value obtained based on propagation delay and propagation speed). This application embodiment does not limit this.

[0065] It should be noted that after the lid of the cooking device is closed, the electromagnetic waves emitted by the radar sensor can propagate downwards and be reflected when they reach the water surface inside the inner pot. Thus, the detection value can be generated based on the propagation time delay of the electromagnetic wave signal corresponding to the water surface.

[0066] Step 302: Based on the detected value and the preset threshold, generate the detection results related to the inner pot of the cooking device.

[0067] Understandably, since this radar sensor can acquire detection values ​​indicating the height of the internal space of the cooking equipment, and then generate detection results related to the inner pot based on these detection values ​​and preset thresholds, it can intelligently identify whether an inner pot is placed inside the cooking equipment, effectively avoiding safety hazards caused by the inner pot being left out. It is also compatible with different types and materials of inner pots, is not affected by external environmental interference factors, has high detection reliability, and can automatically prompt for malfunctions related to the inner pot, thus improving the user experience.

[0068] For example, generating detection results related to the inner pot of the cooking device based on the detected value and a preset threshold includes:

[0069] If the detected value is determined to be greater than or equal to the first preset threshold and less than the second preset threshold, a first detection result indicating that the inner pot is normal is generated.

[0070] Wherein, the first preset threshold is less than the second preset threshold.

[0071] Here, the preset threshold can be pre-configured and stored locally on the cooking device or stored on the server side. When stored on the server side, the cooking device needs to connect to the network to obtain the preset threshold corresponding to the cooking device, and then perform inner pot related detection based on the corresponding preset threshold.

[0072] Here, the first preset threshold can be understood as the criterion for determining whether the food in the inner pot exceeds the rated maximum capacity, and the second preset threshold can be understood as the criterion for determining whether the bottom of the inner pot is reasonable. If the detected value is determined to be greater than or equal to the first preset threshold and less than the second preset threshold, it indicates that the inner pot has been placed and no abnormality has been detected, and a first detection result indicating that the inner pot is normal is generated.

[0073] Exemplarily, the method further includes:

[0074] The reflectivity of the reflected electromagnetic waves is generated based on the detection signal from the radar sensor.

[0075] Based on the reflectivity and the set reflectivity threshold, a result is generated to identify whether the inner pot of the cooking device is a multi-layered inner pot.

[0076] Here, if the control device of the cooking equipment determines that the detected value is greater than or equal to the first preset threshold and less than the second preset threshold, that is, after determining that the inner pot in the cooking equipment is normal, it can further utilize the reflection characteristics of the reflected electromagnetic wave signal to intelligently detect whether the inner pot is a multi-layer inner pot.

[0077] It should be noted that when the inner pot is a single-layer or multi-layer inner pot, the reflection characteristics of electromagnetic wave signals differ due to variations in structure and materials. This difference in reflection characteristics allows for intelligent detection of whether the inner pot is multi-layered. Here, considering that the reflectivity of the electromagnetic wave signals received by the radar sensor within a set time period will vary depending on the inner pot's structure, intelligent detection of whether the inner pot is multi-layered is achieved by using the detected reflectivity and a set reflectivity threshold.

[0078] For example, the step of generating a recognition result for whether the inner pot of the cooking device is a multi-layered inner pot based on the reflectivity and a set reflectivity threshold includes:

[0079] If it is determined that the reflectivity is less than or equal to the first reflectivity threshold and greater than the second reflectivity threshold, a first identification result indicating that the inner pot is a single-layer inner pot is generated.

[0080] If the reflectivity is determined to be less than or equal to the second reflectivity threshold, a second identification result indicating that the inner pot is a multi-layered inner pot is generated.

[0081] Wherein, the first reflectivity threshold is greater than the second reflectivity threshold.

[0082] It should be noted that when a single-layer inner pot structure is used, the reflectivity range is relatively large because water or food has a low absorption rate of electromagnetic waves. Conversely, the reflectivity range is relatively small for multi-layer inner pot structures. Based on these reflection characteristics, the identification result of whether the inner pot of the cooking device is a single-layer or multi-layer inner pot can be effectively determined.

[0083] Exemplarily, the method further includes:

[0084] If it is determined that the reflectivity is less than or equal to the second reflectivity threshold and greater than the third reflectivity threshold, a second identification result is generated indicating that the inner pot is a multi-layered inner pot and the top layer is made of metal.

[0085] If it is determined that the reflectivity is less than or equal to the third reflectivity threshold and greater than the fourth reflectivity threshold, then a third identification result is generated indicating that the inner pot is a multi-layered inner pot and the top layer is made of non-metallic material.

[0086] Wherein, the second reflectivity threshold is greater than the third reflectivity threshold, and the third reflectivity threshold is greater than the fourth reflectivity threshold.

[0087] It should be noted that when using a multi-layer inner pot structure, whether the upper inner pot is made of metal also affects the reflectivity of electromagnetic wave signals. Specifically, if the upper inner pot is made of metal, its impact on the reflectivity of electromagnetic wave signals is less than that of non-metallic materials. Therefore, based on this reflection characteristic, the material of the upper inner pot in a multi-layer inner pot structure can be further distinguished. Here, the first reflectivity threshold is greater than the second reflectivity threshold, the second reflectivity threshold is greater than the third reflectivity threshold, and the third reflectivity threshold is greater than the fourth reflectivity threshold. Each reflectivity threshold can be reasonably determined based on experimental data.

[0088] Exemplarily, the method further includes:

[0089] Based on the current cooking mode and the recognition result, if it is determined that the inner pot placed in the cooking device does not match the current cooking mode, an error reminder message is generated.

[0090] Here, when the cooking device starts cooking in response to the user's start command, it can obtain the current cooking mode. Based on the current cooking mode, the cooking device can determine the required inner pot structure and / or material. Combined with the inner pot identification result, it can determine whether the inner pot placed in the cooking device matches the current cooking mode. If it is determined that the placed inner pot does not match the current cooking mode, an error reminder message will be generated. For example, when the selected function is steaming or multi-cooking, this function needs to be used with a steamer. If the detection device determines that it is a single-layer cooking appliance, the cooking device will prompt the user that the cooking inner pot has not been placed properly as required. In this way, the intelligence level of the cooking device can be further improved and the user experience can be enhanced.

[0091] For example, generating the detection results related to the inner pot of the cooking device based on the detected value and a preset threshold further includes:

[0092] If the detected value is determined to be greater than or equal to a third preset threshold and less than a first preset threshold, a second detection result indicating excessive food ingredients is generated.

[0093] If the detected value is determined to be less than the third preset threshold, a third detection result indicating the presence of a foreign object obstructing the view is generated.

[0094] If the detected value is determined to be greater than or equal to the second preset threshold and less than the fourth preset threshold, a fourth detection result indicating inner pot deformation or inner pot mismatch is generated.

[0095] If the detected value is determined to be greater than or equal to the fourth preset threshold, a fifth detection result indicating that no inner pot has been placed is generated;

[0096] Wherein, the third preset threshold is less than the first preset threshold, and the fourth preset threshold is greater than the second preset threshold.

[0097] Here, the third preset threshold can be understood as the criterion for determining whether there is an obstacle in the space between the lid and the upper edge of the inner pot. If the detected value is determined to be greater than or equal to the third preset threshold and less than the first preset threshold, it indicates that there is a risk of overflow in the inner pot during cooking, and a second detection result indicating excessive food is generated; if the detected value is determined to be less than the third preset threshold, it indicates that there is an obstruction between the lid of the cooking device and the upper edge of the inner pot (i.e., the electromagnetic wave signal emitted by the radar sensor is blocked by the obstacle and cannot be transmitted to the inner pot), and a third detection result indicating the presence of a foreign object obstructing the flow is generated.

[0098] Here, the fourth preset threshold can be understood as the criterion for determining whether the inner pot is deformed, mismatched, or not placed. If the detected value is determined to be greater than or equal to the second preset threshold and less than the fourth preset threshold, a fourth detection result indicating that the inner pot is deformed or mismatched is generated; if the detected value is determined to be greater than or equal to the fourth preset threshold, a fifth detection result indicating that the inner pot is not placed is generated.

[0099] It should be noted that the above test results can be output by the human-computer interaction unit of the cooking equipment, for example, by text, voice, light, etc., to provide corresponding prompts to the user, thereby enabling prompts for various inner pot-related test results before cooking.

[0100] This application embodiment introduces multiple preset thresholds to achieve automatic generation of various detection results, enabling intelligent detection of various situations related to the inner pot of the cooking equipment. In this way, it can output prompts to the user when there are foreign objects obstructing the detection of the inner pot, excessive food in the inner pot, deformation or mismatch of the inner pot, or the inner pot not being placed inside the cooking equipment, thereby improving the intelligence level of the cooking equipment and effectively improving the user experience.

[0101] For example, obtaining the detection value indicating the height of the internal space of the cooking device based on the radar sensor includes:

[0102] The transmission time of the electromagnetic wave signal emitted by the radar sensor and the reception time of the reflected electromagnetic wave signal are obtained.

[0103] The detection value is generated based on the propagation delay between the sending time and the receiving time.

[0104] Here, the reflected electromagnetic wave signal received by the radar sensor can be the electromagnetic wave signal corresponding to the water surface inside the inner pot. This detection value can correspond to the propagation delay or to the height value determined based on the propagation delay.

[0105] Exemplarily, the method further includes:

[0106] The ingredient quantity grade of the cooking equipment is determined based on the detected values;

[0107] Based on the amount and level of the ingredients and the current cooking mode, determine the cooking parameters of the cooking equipment at least during the heating and boiling phases.

[0108] The cooking parameters include at least one of the following: heating power, power ratio, heating temperature threshold, and working time.

[0109] Here, the cooking device can determine the food quantity level by detecting the propagation delay of electromagnetic wave signals using radar sensors and combining this with the propagation speed to determine the water level in the inner pot or the height of the food to be cooked. Since this embodiment can determine the food quantity level without relying on the heating stage, the entire cooking process can be precisely controlled based on the food quantity level. Taking rice cooking as an example, personalized cooking parameters can be set based on the rice quantity level for at least one of the water absorption stage, heating stage, and boiling stage. For example, a corresponding power adjustment ratio can be set for each stage based on the rice quantity level, thereby achieving precise control of cooking and improving the cooking effect. This power adjustment ratio refers to the proportion of heating time within a heating cycle when the heating device is heating at rated power. For example, a power adjustment ratio of 10 / 16 means that in a 16-second heating cycle, 10 seconds are continuously heated, and the other 6 seconds are stopped. Thus, by adjusting the power adjustment ratio to control the average power of the heating effect, temperature control, heat distribution control, etc., can be achieved, thereby improving the cooking effect and enhancing the taste of the rice.

[0110] Understandably, cooking equipment adjusts cooking parameters based on the heating and boiling stages, according to the cooking mode and set dosage level, thereby meeting the needs for precise cooking control under different cooking modes and different ingredient dosage levels, and improving the accuracy of cooking control.

[0111] Exemplarily, the method further includes:

[0112] The radar sensor is activated in response to the lid of the cooking appliance being closed; and / or,

[0113] The radar sensor is turned off in response to the lid of the cooking device being opened.

[0114] Here, the control device can activate the radar sensor in response to the lid of the cooking appliance being closed, generating detection results related to the inner pot, and then providing intelligent reminders to the user to avoid affecting the cooking experience due to the inner pot not being placed or being placed improperly. Furthermore, the control device can deactivate the radar sensor in response to the lid of the cooking appliance being opened, thereby avoiding false detections caused by the lid being open and improving the reliability of detection.

[0115] The following example illustrates the control method for cooking equipment.

[0116] In this application embodiment, the cooking device uses a radar sensor to detect the inner pot as follows: Figure 4 As shown, a radar sensor is mounted on the lid, and its activation and deactivation are controlled by detecting the opening and closing of the lid. The control method for this cooking device includes the following steps:

[0117] 1) When the lid opening / closing detection control function is activated: Based on the lid opening / closing detection, if the lid is determined to be open, the radar detection function is not activated. When the lid opening / closing detection output indicates a closed state, the radar sensor is activated and outputs an electromagnetic beam. Given that the propagation speed of electromagnetic waves in free space is v, calculate the time difference t between the emission and reflection / reception of this electromagnetic beam. Figure 4 As shown, when t < (T1 = 2H1 / v) (i.e., the detected value is less than the third preset threshold), the detection device determines that there is a foreign object obstructing the pot, indicating an abnormality in the pot detection; when (T1 = 2H1 / v) ≤ t < (T2 = 2H2 / v) (i.e., the detected value is greater than or equal to the third preset threshold and less than the first preset threshold), the detection device determines that there is a cooking appliance, but the added ingredients exceed the reasonable capacity, reminding the user to add ingredients in moderation; when (T2 = 2H2 / v) ≤ t < (T3 = 2H3 / v) (i.e., ... When the detected value is greater than or equal to the first preset threshold and less than the second preset threshold, it is determined that a cooking appliance is present, and the pot is checked normally; when (T3=2H3 / v)≤t<(T4=2H4 / v) (that is, when the detected value is greater than or equal to the second preset threshold and less than the fourth preset threshold), it is determined that a cooking appliance is present, and the user is prompted to adapt the cooking appliance to a different type or use an incompatible cooking appliance; when t≥(T4=2H4 / v) (that is, when the detected value is greater than or equal to the fourth preset threshold), it is prompted that no cooking appliance is placed.

[0118] 2) When a multi-layer cooking appliance is detected by a radar sensor, the detection time should be within the range of (T2=2H2 / v)≤t<(T3=2H3 / v). However, this range only determines the presence of a cooking appliance and cannot determine whether the inner pot is a multi-layer cooking appliance. Therefore, the reflection characteristics of electromagnetic wave signals can be used to determine whether it is food obstruction or a multi-layer cooking appliance. Specifically, the reflectivity can be used to determine whether it is a multi-layer cooking appliance. Since metals have weak absorption and strong scattering of electromagnetic waves, their surface reflectivity R is high. Different metals also have different reflectivity. Glass and ceramics have different reflectivity R. The reflectivity R of electromagnetic waves is relatively low, and the reflectivity of electromagnetic waves by water or food is even lower. When there is a single cooking appliance (i.e., a single-layer inner pot), the reflectivity is between R2 and R3, while when there are multiple cooking appliances, the reflectivity is between R4 and R5. Usually, the upper cooking appliance is made of non-metallic material. In this case, R3>R2>R5>R4. Therefore, when the reflectivity is between R2 and R3, the detection device judges it as a single cooking appliance. When the reflectivity is between R4 and R5, the detection device judges it as a multi-layer cooking appliance. When the reflectivity is between R5 and R2, the detection device judges it as a multi-layer cooking appliance, and the uppermost cooking appliance is made of metal.

[0119] For example, when the radar sensor detects that the appliance is a single-layer cooking appliance and the user selects a double-layer or multi-layer cooking appliance function, the system will report an error. Specifically, for example, when the selected function is steaming or multi-cooking, this function requires the use of a steamer. If the detection device determines that the appliance is a single-layer cooking appliance, the cooking device will prompt the user that the appliance has not been placed properly. In this way, the intelligence level of the cooking device is effectively improved, thereby improving the user experience.

[0120] In order to implement the method of the embodiments of this application, the embodiments of this application also provide a control device for a cooking device, which corresponds to the control method of the cooking device described above. Each step in the control method of the cooking device described above is also fully applicable to the control device embodiment of this cooking device.

[0121] like Figure 5 As shown, the control device of the cooking equipment includes an acquisition module 501 and a control module 502. The acquisition module 501 is used to acquire a detection value indicating the height of the internal space of the cooking equipment based on the radar sensor; the control module 502 is used to generate detection results related to the inner pot of the cooking equipment based on the detection value and a preset threshold.

[0122] In some embodiments, the control module 502 is specifically used for:

[0123] If the detected value is determined to be greater than or equal to the first preset threshold and less than the second preset threshold, a first detection result indicating that the inner pot is normal is generated.

[0124] Wherein, the first preset threshold is less than the second preset threshold.

[0125] In some embodiments, the control module 502 is further configured to:

[0126] The reflectivity of the reflected electromagnetic waves is generated based on the detection signal from the radar sensor.

[0127] Based on the reflectivity and the set reflectivity threshold, a result is generated to identify whether the inner pot of the cooking device is a multi-layered inner pot.

[0128] In some embodiments, the control module 502 generates an identification result based on the reflectivity and a set reflectivity threshold to determine whether the inner pot of the cooking device is a multi-layered inner pot, including:

[0129] If it is determined that the reflectivity is less than or equal to the first reflectivity threshold and greater than the second reflectivity threshold, a first identification result indicating that the inner pot is a single-layer inner pot is generated.

[0130] If the reflectivity is determined to be less than or equal to the second reflectivity threshold, a second identification result indicating that the inner pot is a multi-layered inner pot is generated.

[0131] Wherein, the first reflectivity threshold is greater than the second reflectivity threshold.

[0132] In some embodiments, the control module 502 is further configured to:

[0133] If it is determined that the reflectivity is less than or equal to the second reflectivity threshold and greater than the third reflectivity threshold, then a third identification result is generated indicating that the inner pot is a multi-layered inner pot and the top layer is made of metal.

[0134] If it is determined that the reflectivity is less than or equal to the third reflectivity threshold and greater than the fourth reflectivity threshold, then a fourth identification result is generated indicating that the inner pot is a multi-layered inner pot and the top layer is made of non-metallic material.

[0135] Wherein, the second reflectivity threshold is greater than the third reflectivity threshold, and the third reflectivity threshold is greater than the fourth reflectivity threshold.

[0136] In some embodiments, the control module 502 is further configured to:

[0137] Based on the current cooking mode and the recognition result, if it is determined that the inner pot placed in the cooking device does not match the current cooking mode, an error reminder message is generated.

[0138] In some embodiments, the control module 502 is further configured to:

[0139] If the detected value is determined to be greater than or equal to a third preset threshold and less than a first preset threshold, a second detection result indicating excessive food ingredients is generated.

[0140] If the detected value is determined to be less than the third preset threshold, a third detection result indicating the presence of a foreign object obstructing the view is generated.

[0141] If the detected value is determined to be greater than or equal to the second preset threshold and less than the fourth preset threshold, a fourth detection result indicating inner pot deformation or inner pot mismatch is generated.

[0142] If the detected value is determined to be greater than or equal to the fourth preset threshold, a fifth detection result indicating that no inner pot has been placed is generated;

[0143] Wherein, the third preset threshold is less than the first preset threshold, and the fourth preset threshold is greater than the second preset threshold.

[0144] In some embodiments, the acquisition module 501 is specifically used for:

[0145] The transmission time of the electromagnetic wave signal emitted by the radar sensor and the reception time of the reflected electromagnetic wave signal are obtained.

[0146] The detection value is generated based on the propagation delay between the sending time and the receiving time.

[0147] In some embodiments, the control module 502 is further configured to:

[0148] The ingredient quantity grade of the cooking equipment is determined based on the detected values;

[0149] Based on the amount and level of the ingredients and the current cooking mode, determine the cooking parameters of the cooking equipment at least during the heating and boiling phases.

[0150] The cooking parameters include at least one of the following: heating power, power ratio, heating temperature threshold, and working time.

[0151] In some embodiments, the control module 502 is further configured to:

[0152] The radar sensor is activated in response to the lid of the cooking appliance being closed; and / or,

[0153] The radar sensor is turned off in response to the lid of the cooking device being opened.

[0154] In practical applications, the acquisition module 501 and the control module 502 can be implemented by the processor of the cooking equipment. Of course, the processor needs to run the computer program in the memory to realize its functions.

[0155] It should be noted that the control device for the cooking equipment provided in the above embodiments is only illustrated by the division of the above-described program modules. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. Furthermore, the control device for the cooking equipment provided in the above embodiments and the control method embodiments for the cooking equipment belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0156] Based on the hardware implementation of the above program modules, and in order to implement the method of the embodiments of this application, the embodiments of this application also provide a cooking device. Figure 6 Only an exemplary structure of the cooking device is shown, not the entire structure; it can be implemented as needed. Figure 6 The structure shown may be part or all of the structure.

[0157] like Figure 6 As shown, the cooking device 600 provided in this embodiment includes at least one processor 601, a memory 602, and a user interface 603. The various components in the cooking device 600 are coupled together via a bus system 604. It can be understood that the bus system 604 is used to implement communication between these components. In addition to a data bus, the bus system 604 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 6 The general designated all buses as Bus System 604.

[0158] The user interface 603 may include a monitor, keyboard, mouse, trackball, click wheel, buttons, touchpad, or touch screen.

[0159] The memory 602 in this embodiment is used to store various types of data to support the operation of the cooking equipment. Examples of such data include any computer programs used to operate on the cooking equipment.

[0160] It is understood that the cooking device in this application embodiment includes an inner pot and a radar sensor. Specifically, the cooking device also includes a lid located above the inner pot, and a radar sensor is provided on the lid. The radar sensor detects targets based on electromagnetic waves and can detect the detection value corresponding to the height of the internal space of the cooking device.

[0161] The control method for cooking equipment disclosed in this application can be applied to or implemented by processor 601. Processor 601 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the control method for cooking equipment can be completed by integrated logic circuits in the hardware of processor 601 or by instructions in software form. The processor 601 can be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Processor 601 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. A general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of this application can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software modules can be located in a storage medium, specifically memory 602. Processor 601 reads information from memory 602 and, in conjunction with its hardware, completes the steps of the control method for cooking equipment provided in the embodiments of this application.

[0162] In an exemplary embodiment, the cooking device may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0163] It is understood that memory 602 can be volatile memory or non-volatile memory, or both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Sync Link Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0164] In an exemplary embodiment, this application also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, such as a memory 602 that stores a computer program. This computer program can be executed by the processor 601 of the cooking device to complete the steps described in the method of this application embodiment. The computer-readable storage medium can be a ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM, etc.

[0165] In an exemplary embodiment, this application also provides a computer program product, including a computer program that can be executed by a processor 601 of a cooking device 600 to perform the steps described in the method of this application embodiment.

[0166] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0167] Furthermore, the technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0168] The above description is merely a specific 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 method for controlling a cooking device, characterized in that, The cooking device includes an inner pot and a radar sensor, and the method includes: Obtain a detection value indicating the height of the internal space of the cooking equipment based on the radar sensor; Based on the detected values ​​and preset thresholds, detection results related to the inner pot of the cooking device are generated.

2. The method according to claim 1, characterized in that, The step of generating detection results related to the inner pot of the cooking device based on the detected value and a preset threshold includes: If the detected value is determined to be greater than or equal to the first preset threshold and less than the second preset threshold, a first detection result indicating that the inner pot is normal is generated. Wherein, the first preset threshold is less than the second preset threshold.

3. The method according to claim 2, characterized in that, The method further includes: The reflectivity of the reflected electromagnetic waves is generated based on the detection signal from the radar sensor. Based on the reflectivity and the set reflectivity threshold, a result is generated to identify whether the inner pot of the cooking device is a multi-layered inner pot.

4. The method according to claim 3, characterized in that, The step of generating a recognition result for whether the inner pot of the cooking device is a multi-layered inner pot based on the reflectivity and a set reflectivity threshold includes: If it is determined that the reflectivity is less than or equal to the first reflectivity threshold and greater than the second reflectivity threshold, a first identification result indicating that the inner pot is a single-layer inner pot is generated. If the reflectivity is determined to be less than or equal to the second reflectivity threshold, a second identification result indicating that the inner pot is a multi-layered inner pot is generated. Wherein, the first reflectivity threshold is greater than the second reflectivity threshold.

5. The method according to claim 4, characterized in that, The method further includes: If it is determined that the reflectivity is less than or equal to the second reflectivity threshold and greater than the third reflectivity threshold, then a third identification result is generated indicating that the inner pot is a multi-layered inner pot and the top layer is made of metal. If it is determined that the reflectivity is less than or equal to the third reflectivity threshold and greater than the fourth reflectivity threshold, then a fourth identification result is generated indicating that the inner pot is a multi-layered inner pot and the top layer is made of non-metallic material. Wherein, the second reflectivity threshold is greater than the third reflectivity threshold, and the third reflectivity threshold is greater than the fourth reflectivity threshold.

6. The method according to claim 3, characterized in that, The method further includes: Based on the current cooking mode and the recognition result, if it is determined that the inner pot placed in the cooking device does not match the current cooking mode, an error reminder message is generated.

7. The method according to claim 2, characterized in that, The step of generating detection results related to the inner pot of the cooking device based on the detected value and the preset threshold also includes: If the detected value is determined to be greater than or equal to a third preset threshold and less than a first preset threshold, a second detection result indicating excessive food ingredients is generated. If the detected value is determined to be less than the third preset threshold, a third detection result indicating the presence of a foreign object obstructing the view is generated. If the detected value is determined to be greater than or equal to the second preset threshold and less than the fourth preset threshold, a fourth detection result indicating inner pot deformation or inner pot mismatch is generated. If the detected value is determined to be greater than or equal to the fourth preset threshold, a fifth detection result indicating that no inner pot has been placed is generated; Wherein, the third preset threshold is less than the first preset threshold, and the fourth preset threshold is greater than the second preset threshold.

8. The method according to claim 1, characterized in that, The step of acquiring the detection value indicating the height of the internal space of the cooking equipment based on the radar sensor includes: The transmission time of the electromagnetic wave signal emitted by the radar sensor and the reception time of the reflected electromagnetic wave signal are obtained. The detection value is generated based on the propagation delay between the sending time and the receiving time.

9. The method according to claim 8, characterized in that, The method further includes: The ingredient quantity grade of the cooking equipment is determined based on the detected values; Based on the amount and level of the ingredients and the current cooking mode, determine the cooking parameters of the cooking equipment at least during the heating and boiling phases. The cooking parameters include at least one of the following: heating power, power ratio, heating temperature threshold, and working time.

10. The method according to claim 1, characterized in that, The method further includes: The radar sensor is activated in response to the lid of the cooking appliance being closed; and / or, The radar sensor is turned off in response to the lid of the cooking device being opened.

11. A control device for a cooking apparatus, characterized in that, The cooking device includes an inner pot and a radar sensor, and the control device includes: The acquisition module is used to acquire a detection value indicating the height of the internal space of the cooking equipment based on the radar sensor. The control module is used to generate detection results related to the inner pot of the cooking device based on the detected values ​​and preset thresholds.

12. A cooking device, characterized in that, The cooking device includes an inner pot and a radar sensor, and further includes a processor and a memory for storing computer programs capable of running on the processor. The processor, when running a computer program, performs the steps of the method according to any one of claims 1 to 10.

13. A storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 10.

14. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 10.

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