Anti-dry-burning control method of cooking equipment, controller and cooking equipment

Abstract

The embodiment of the invention provides an anti-dry-burning control method of cooking equipment, a controller and the cooking equipment. The method comprises the steps that a controller of the cooking equipment obtains the real-time weight of the cooking utensil in the cooking process, so that the weight change information of the cooking utensil in the preset time length is determined, and the operation frequency of a user on the cooking utensil in the preset time length is obtained through analysis. The controller obtains the real-time temperature of the cooking utensil, and when the real-time temperature of the cooking utensil reaches a first temperature threshold value, the anti-dry-burning temperature threshold value is adjusted according to the operation frequency. And the controller adjusts the heating gear according to the adjusted dry-burning-resistant temperature threshold value and the real-time temperature. The method is used for achieving the effect of improving the accuracy of anti-dry-burning control.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dry-burn prevention control, and in particular to a dry-burn prevention control method, a controller and a cooking device. BACKGROUND

[0002] With the rapid development of smart home technology, the demand for intelligent cooking devices is increasing. The dry-burn prevention function, as a core technology to ensure safety, is widely used in cooking devices.

[0003] Currently, the dry-burn prevention technology generally uses a control logic with a preset fixed temperature threshold to achieve dry-burn prevention control. For example, a cooking device can monitor the bottom temperature of a pot in real time through a temperature sensor, and when the bottom temperature of the pot exceeds a preset threshold, the cooking device can trigger a power-off or alarm mechanism to terminate heating.

[0004] However, with the diversification of cooking device functions, the dry-burn prevention logic is prone to false triggering, and there is a problem of poor accuracy of dry-burn prevention control. SUMMARY

[0005] The embodiments of the present application provide a dry-burn prevention control method, a controller and a cooking device for a cooking device to improve the accuracy of dry-burn prevention control.

[0006] In a first aspect, the embodiments of the present application provide a dry-burn prevention control method for a cooking device, the cooking device being configured to cook a cooking utensil containing foodstuff, comprising:

[0007] During cooking, determining an operation frequency of the cooking utensil by a user within a preset time period according to weight change information of the cooking utensil within the preset time period; the weight change information is determined according to real-time weight of the cooking utensil within the preset time period;

[0008] If the real-time temperature of the cooking utensil reaches a first temperature threshold, adjusting a dry-burn prevention temperature threshold according to the operation frequency; the first temperature threshold is determined according to the dry-burn prevention temperature threshold;

[0009] Adjusting a heating level according to the adjusted dry-burn prevention temperature threshold and the real-time temperature.

[0010] In a second aspect, the embodiments of the present application provide a dry-burn prevention control device for a cooking device, the cooking device being configured to cook a cooking utensil containing foodstuff, comprising:

[0011] An obtaining module configured to, during cooking, determine an operation frequency of the cooking utensil by a user within a preset time period according to weight change information of the cooking utensil within the preset time period; the weight change information is determined according to real-time weight of the cooking utensil within the preset time period;

[0012] a processing module configured to adjust the dry-burn prevention temperature threshold according to the operation frequency if the real-time temperature of the cooking utensil reaches a first temperature threshold, wherein the first temperature threshold is determined according to the dry-burn prevention temperature threshold;

[0013] adjust the heating level according to the adjusted dry-burn prevention temperature threshold and the real-time temperature.

[0014] In a third aspect, an embodiment of the present application provides a controller, comprising: a memory and a processor.

[0015] The memory stores computer-executable instructions.

[0016] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the first aspect and / or various possible implementation manners of the first aspect.

[0017] In a fourth aspect, an embodiment of the present application provides a cooking device, comprising: the controller of the third aspect and / or various possible implementation manners of the third aspect, a weight sensor and a temperature sensor, wherein the weight sensor is configured to monitor the weight of the cooking utensil, and the temperature sensor is configured to monitor the temperature of the cooking utensil.

[0018] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by a processor to implement the first aspect and / or various possible implementation manners of the first aspect.

[0019] In a sixth aspect, an embodiment of the present application provides a computer program product, comprising a computer program, and the computer program is executed by a processor to implement the first aspect and / or various possible implementation manners of the first aspect.

[0020] The dry-burn prevention control method, the controller and the cooking device provided by the embodiments of the present application can obtain the real-time weight of the cooking utensil during the cooking process, so as to determine the weight change information of the cooking utensil within a preset time length, and analyze the operation frequency of the user to the cooking utensil within the preset time length; and obtain the real-time temperature of the cooking utensil, and adjust the dry-burn prevention temperature threshold according to the operation frequency if the real-time temperature of the cooking utensil reaches a first temperature threshold; and adjust the heating level according to the adjusted dry-burn prevention temperature threshold and the real-time temperature, so as to realize more accurate dry-burn prevention control, reduce the misjudgment and the missed judgment of the dry-burn prevention, and improve the safety of the cooking device. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0022] Figure 1 A flowchart of a dry-burn prevention control method of a cooking device provided in the present application is shown in the following figure:

[0023] Figure 2 An example flowchart of a dry-burn prevention control method of a cooking device provided in the present application is shown in the following figure:

[0024] Figure 3 A structural diagram of a dry-burn prevention control device of a cooking device provided in the present application is shown in the following figure:

[0025] Figure 4 A structural diagram of a controller provided in the present application is shown in the following figure.

[0026] The specific embodiments of the present application have been shown in the above figures, and will be described in more detail hereinafter. These figures and the written description are not intended to limit the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to indicate the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not meant to represent all implementations consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims.

[0028] With the rapid development of smart home technology, the demand for intelligent cooking devices is increasing. The dry-burn prevention function, as a core technology to ensure safety, is widely used in cooking devices.

[0029] In current cooking devices, the dry-burn prevention technology generally uses a control logic with a preset fixed temperature threshold to achieve dry-burn prevention control. For example, a cooking device can monitor the temperature at the bottom of the pot in real time through a temperature sensor, and when the temperature at the bottom of the pot exceeds the preset threshold, the cooking device can trigger a power-off or alarm mechanism to terminate heating.

[0030] However, this method of presetting a fixed temperature threshold often cannot adapt to different pot materials, different food materials, and different cooking habits of users.

[0031] For example, during high-temperature cooking such as frying, the temperature inside the pot is relatively high, but the cooking is still in progress. At this time, the traditional dry-burn prevention function may be mistakenly started due to reaching the fixed threshold, interrupting the cooking process.

[0032] For example, during cooking, the user's frequent stirring, adding ingredients and other operation behaviors can indicate that the user is actively paying attention to the state in the pot. At this time, the dry burning control can be appropriately relaxed, so as to give more control authority to the user.

[0033] Current dry burning prevention systems rarely take into account the material of the cookware, the cooking mode, and the user's operation information, and cannot flexibly adjust the dry burning prevention temperature according to the user's real-time operation, making it difficult to adapt to complex and variable cooking scenarios, and resulting in poor dry burning control accuracy.

[0034] Therefore, the present application provides a dry burning prevention control method applied to a cooking device. The dry burning prevention control method can be executed by a controller of the cooking device. The controller of the cooking device can obtain the weight change information of the cooking utensil in real time through the weight sensor arranged in the cooking device, so as to determine the user operation frequency according to the weight change. The controller can adjust the intelligent dry burning temperature threshold according to the real-time temperature of the cooking device and the operation frequency, greatly improve the accuracy and adaptability of the dry burning prevention system, effectively reduce the misjudgment and omission, and provide strong guarantee for kitchen cooking safety and convenience.

[0035] In an example, the cooking utensil can be a pot. The controller can monitor the weight change information of the pot and ingredients in real time by using the weight sensor arranged in the cooking device. The controller can determine the operation frequency and the cooking state of the user within a preset time period according to the weight change information. The cooking state can correspond to a cooking mode or a cooking recipe.

[0036] In an example, the controller can combine the temperature information obtained in real time by the temperature sensor arranged in the cooking device to ensure the accuracy and real-time performance of the data.

[0037] In an example, the controller can identify the material of the pot according to the weight change information and the temperature information, and determine the corresponding dry burning temperature threshold through an algorithm. Furthermore, the controller can intelligently adjust the dry burning temperature threshold according to the weight change information and the temperature information to adapt to different cooking scenarios.

[0038] For example, the dry burning prevention control method of the present application is applied to a cooking device. The cooking device is provided with a controller, a weight sensor and a temperature sensor. The weight sensor is used to monitor the weight of the cooking utensil. The temperature sensor is used to monitor the temperature of the cooking utensil.

[0039] In an example, the weight sensor and the temperature sensor can constitute a weight and temperature monitoring module of the cooking device.

[0040] In an example, the weight sensor and the temperature sensor can be high-precision weight sensors and temperature sensors.

[0041] In an example, the weight sensor and the temperature sensor can be integrated in the cooking device.

[0042] In an example, the weight sensor is configured to monitor the real-time weight of the pot and the foodstuff. The controller can determine the weight change information according to the real-time weight. The controller can determine the operation frequency and the cooking state of the user according to the weight change information.

[0043] In an example, the temperature sensor is configured to monitor the real-time temperature during the cooking process. The controller can obtain accurate temperature data of the pot through the temperature sensor.

[0044] In an example, the controller can be located in the control module of the cooking device. The controller is configured to execute the dry boil prevention control method of the present application, which is the core of the dry boil prevention control.

[0045] In an example, the controller can receive the weight change information from the weight sensor and the real-time temperature feedback from the temperature sensor. The controller is built-in with the algorithm program of the dry boil prevention control method. The controller can analyze and calculate the operation frequency of the user operating the cooking appliance according to the weight change information according to the algorithm program. At the same time, the controller can dynamically adjust the dry boil prevention temperature threshold according to the preset rules and models in combination with the real-time temperature during the cooking process, and send the adjustment instruction to the heating control unit of the cooking device.

[0046] In an example, the heating control unit of the cooking device can include a burner control unit. The burner control unit can be connected with the stove burner element. The heating control unit can adjust the heating gear and thus control the cooking temperature according to the adjustment instruction sent by the controller.

[0047] In an example, when the controller detects that the real-time temperature is close to the adjusted dry boil prevention temperature threshold, the controller can control the burner control unit to reduce the heating power to prevent the temperature from further rising and causing dry boil. Alternatively, when the controller determines that the real-time temperature is lower than the normal cooking required temperature range, the controller can control the burner control unit to appropriately increase the heating gear.

[0048] In an example, the cooking device can further include an interactive interface.

[0049] In an example, the user can view and adjust the system parameters through the interactive interface. The system parameters can include the dry boil prevention temperature threshold and the like.

[0050] In an example, the interactive interface can include a real-time feedback function. The cooking device can display the current cooking state, the real-time temperature, the dry boil prevention state and the like to the user through the interactive interface.

[0051] In an example, when the cooking device is turned on, the controller can perform initialization calibration on the weight sensor and the temperature sensor to ensure the accuracy of the sensor measurement data. Meanwhile, the controller can also read the default dry burning prevention temperature threshold and the user-set cooking mode from the storage module. Different cooking modes are preset with different initial dry burning prevention temperature ranges and associated rules of user operation frequency and temperature adjustment.

[0052] The technical solutions of the present application and how the technical solutions solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described again in some examples. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0053] Figure 1 The flowchart of the dry burning prevention control method of the cooking device provided by the present application is shown in FIG. 1, which is applied to a cooking device, and the execution subject is a controller in the cooking device. The cooking device is used for cooking a cooking utensil containing food materials. The method comprises the following steps. Figure 1

[0054] S101, during the cooking process, determining the operation frequency of the user on the cooking utensil within a preset time length according to the weight change information of the cooking utensil within the preset time length. The weight change information comprises real-time weight determination within the preset time length.

[0055] In an example, the controller can obtain the real-time weight and the real-time temperature of the cooking utensil cooked by the cooking device in real time through the temperature sensor and the weight sensor integrated in the cooking device during the cooking process of the cooking device.

[0056] In an example, the controller can determine the weight change information of the cooking utensil within the preset time length according to the real-time weight.

[0057] In an example, the preset time length can be a set value. For example, the preset time length can be 1 minute, 2 minutes, 30 seconds, etc.

[0058] In an example, the weight change information can generate a curve using the real-time weight, and the curve can represent the change of the weight of the cooking utensil. Alternatively, the weight change information can include the weight change value of two adjacent time points.

[0059] In an example, the controller can determine the operation frequency of the user on the cooking utensil within the preset time length according to the weight change information after obtaining the weight change information.

[0060] In an example, the specific process of determining the operation frequency of the user by the controller can comprise:​

[0061] S1011. Determine the number of times a user operates the cooking appliance within a preset time period based on weight change information of the cooking appliance within a preset time period.

[0062] For example, the controller may obtain weight change information within a preset time period, analyze the weight change information, and determine the number of weight changes. Based on the number of weight changes, the controller may determine the number of times the user has operated the cooking appliance within the preset time period.

[0063] In one example, the user's operation on the cooking utensil may include lifting, putting down, shaking the pot, using a spatula to stir the food in the pot, using a spoon to stir the food in the pot, etc.

[0064] In one example, when a user operates a cooking utensil, it usually causes the real-time weight of the pot detected by the cooking device to fluctuate.

[0065] For example, when a pot is taken out and put down, the real-time weight of the pot detected by the cooking device may be reset to zero and then appear again.

[0066] For another example, when a user uses a spatula to stir food in a pot, the spatula contacting the bottom of the pot usually causes the real-time weight detected by the weight sensor to suddenly increase.

[0067] In one example, the specific process of the controller determining the number of operations may include:

[0068] S10111. Generate a weight change curve based on the real-time weight of the cooking appliance within a preset time period.

[0069] For example, the controller can generate a curve based on the real-time weight of the cooking appliance collected. The curve can intuitively represent the change in the real-time weight within the preset time period. Therefore, the curve can be used as a weight change curve.

[0070] In one example, the real-time weight may have a certain sampling frequency. The sampling frequency may be determined based on the device sampling frequency of the weight sensor. Alternatively, the sampling frequency may be determined by a preset frequency. For example, the sampling frequency may be 1 time per second, 5 times per second, 10 times per second, etc.

[0071] In one example, in the weight change curve, the horizontal axis may represent time, and the vertical axis may represent weight.

[0072] In one example, the controller can first plot the plurality of real-time weights obtained in the preset time duration in the coordinate system having the horizontal axis and the vertical axis. The controller can then use a straight line to connect two adjacent points to obtain a line of the real-time weights, and generate the weight change curve.

[0073] In one example, the controller can use a curve fitting algorithm to fit the real-time weights plotted in the horizontal axis and vertical axis coordinate system to obtain the final weight change curve.

[0074] S10112, count the number of peaks and troughs in the weight change curve, and determine the number of operations according to the number of peaks and troughs.

[0075] In an example, when the user operates the cooking appliance, it usually causes the weight of the cooking appliance to change suddenly. Therefore, the controller can determine the number of operations by obtaining the number of sudden changes.

[0076] In one example, when the user lifts and puts down the pot, the weight change curve shows a sudden decrease and then an increase. This process can be represented as a trough in the weight change curve.

[0077] In one example, when the user stirs the food with a shovel, the shovel touching the pot causes the weight of the pot to increase, and the weight change curve shows a sudden increase and then a decrease. This process can be represented as a peak in the weight change curve.

[0078] In an example, the controller can count the number of peaks and troughs in the weight change curve. Since in normal cooking, the weight in the pot changes smoothly, when a peak or a trough appears, it can be considered that the user has operated the cooking appliance. Therefore, the controller can take the number of peaks and troughs as the number of operations.

[0079] In another example, the specific process of the controller to determine the number of operations can include:

[0080] S10113, the controller can determine the weight change state of the controller according to the real-time weight. The weight change state can be weight increase or weight decrease.

[0081] S10114, the controller can generate a pulse signal when the weight change state changes.

[0082] S10115, the controller can count and analyze the time interval of the pulse signals to calculate the number of times the user operates the cooking appliance in the preset time duration. For example, the controller can determine the number of operations according to the number of pulse signals.

[0083] S1012, determine a frequency of operation of the cooking appliance by the user in the preset time period according to a ratio of the number of operations to the preset time period.

[0084] For example, the controller can determine the frequency of operation according to a ratio of the number of operations to the preset time period. The frequency of operation is used to indicate the number of times the user operates the cooking appliance in a unit time period within the preset time period.

[0085] For example, if the preset time period is 2 minutes and the number of operations is 20, the frequency of operation of the user is 10 times / minute.

[0086] S102, if the real-time temperature of the cooking appliance reaches a first temperature threshold, adjust the dry burning prevention temperature threshold according to the frequency of operation. The first temperature threshold is determined according to the dry burning prevention temperature threshold.

[0087] For example, the electronic device can also obtain the real-time temperature of the cooking appliance through the temperature sensor. If the real-time temperature reaches the first temperature threshold, it indicates that the pot may heat up to the dry burning prevention temperature in the subsequent time period, thereby triggering the dry burning prevention control.

[0088] In order to improve the flexibility of the dry burning prevention control strategy, the controller can adjust the dry burning prevention temperature threshold according to the frequency of operation when it is determined that the real-time temperature reaches the first temperature threshold, so that the dry burning prevention control of the cooking appliance can be more close to the current use demand of the user.

[0089] Therefore, the controller can adjust the dry burning prevention temperature threshold according to the frequency of operation when the real-time temperature reaches the first temperature threshold. Alternatively, the controller can dynamically adjust the dry burning prevention temperature threshold according to a preset adjustment rule.

[0090] In an example, if the frequency of operation of the user is high, it indicates that the user pays high attention to the food in the cooking appliance, at this time the dry burning prevention temperature threshold can be increased, thereby giving the user more active control. If the frequency of operation of the user is low, it indicates that the user pays low attention to the food in the cooking appliance, at this time the dry burning prevention temperature threshold can be decreased, thereby better avoiding the occurrence of dry burning.

[0091] In an example, the controller can intelligently adjust the dry burning prevention temperature threshold according to the frequency of operation of the user, the material of the pot used, and different cooking modes.

[0092] In an example, the first temperature threshold is a value slightly less than the dry burning prevention temperature threshold.

[0093] In an example, the first temperature threshold can be determined according to the dry burning prevention temperature threshold at the current time. For example, the first temperature threshold can be a product of the dry burning prevention temperature threshold and a preset ratio. For example, the preset ratio can be 0.8, 0.9, 0.95, etc.

[0094] In an example, the specific process of adjusting the dry-burning prevention temperature threshold by the controller can include:

[0095] S1021, if the operation frequency is greater than or equal to the frequency threshold, adjusting the dry-burning prevention temperature threshold according to the operation frequency.

[0096] Illustratively, when the real-time temperature of the cooking appliance reaches the first temperature threshold, it indicates that the cooking appliance is about to have a dry-burning phenomenon. At this time, if the operation frequency is greater than or equal to the frequency threshold, it indicates that the user is operating the cooking appliance frequently at this time. At this time, the cooking process is relatively active, and the food is constantly stirred or new food is added. At this time, it can be considered that the possibility of dry burning is low, and the dry-burning prevention temperature threshold can be appropriately increased.

[0097] In an example, the specific process of adjusting the dry-burning prevention temperature threshold by the controller can include:

[0098] S10211, determining the threshold value adjustment ratio according to the operation frequency and a preset threshold value adjustment ratio range.

[0099] Illustratively, the threshold value adjustment ratio range can be pre-stored in the controller. For example, the threshold value adjustment ratio range can be 10-15%. The controller can determine a threshold value adjustment ratio from the threshold value adjustment ratio range according to the operation frequency.

[0100] In an example, the controller can first calculate a first difference between the operation frequency and the frequency threshold. Then, the controller can calculate a ratio of the first difference to the frequency threshold. The controller can calculate a second difference between the upper limit value and the lower limit value of the threshold value adjustment ratio range. The controller can determine an adjustment value using the product of the second difference and the ratio. The controller can determine the final threshold value adjustment ratio using the sum of the adjustment value and the lower limit value of the threshold value adjustment ratio range.

[0101] In an example, when the ratio is greater than 1, the value of the ratio is 1.

[0102] For example, when the threshold value adjustment ratio range can be 10-15% and the frequency threshold is 10 times per minute, if the operation frequency is 10 times per minute, the threshold value adjustment ratio is 10%. If the operation frequency is 15 times per minute, the threshold value adjustment ratio is 12.5%. If the operation frequency is 20 times per minute, the threshold value adjustment ratio is 15%.

[0103] S10212, adjusting the dry-burning prevention temperature threshold according to the threshold value adjustment ratio to determine the adjusted dry-burning prevention temperature threshold.

[0104] Exemplarily, the controller can determine an up-regulation amount of the dry-burning prevention temperature threshold value according to a product of the threshold up-regulation ratio and the dry-burning prevention temperature threshold value. The controller can determine the final dry-burning prevention temperature threshold value according to a sum of the up-regulation amount and the dry-burning prevention temperature threshold value.

[0105] S1022, if the operation frequency is less than the frequency threshold value, the dry-burning prevention temperature threshold value is down-regulated according to the operation frequency.

[0106] Exemplarily, when the real-time temperature of the cooking appliance reaches the first temperature threshold value, it indicates that the cooking appliance is about to have a dry-burning phenomenon. At this time, if the operation frequency is less than the frequency threshold value, it indicates that the user's operation frequency of the cooking appliance at this time is low. At this time, the user's attention to the food in the cooking appliance is low. Therefore, it can be considered that the dry-burning risk is increased, and the dry-burning prevention temperature threshold value should be appropriately reduced.

[0107] For example, if the user's operation frequency is low, and the cooking temperature continues to rise close to the initial dry-burning prevention temperature threshold value, the control module reduces the dry-burning prevention temperature threshold value, and starts the dry-burning prevention protection mechanism in advance.

[0108] In an example, the specific process of down-regulating the dry-burning prevention temperature threshold value can include:

[0109] S10221, a threshold down-regulation ratio is determined according to the operation frequency and a preset threshold down-regulation ratio range.

[0110] Exemplarily, the threshold down-regulation ratio range can be pre-stored in the controller. For example, the threshold down-regulation ratio range can be 5-8%. The controller can determine a threshold down-regulation ratio from the threshold down-regulation ratio range according to the operation frequency.

[0111] In an example, the controller can first calculate a third difference value of the frequency threshold value and the operation frequency. Then, the controller can calculate a ratio of the third difference value and the frequency threshold value. The controller can calculate a fourth difference value of an upper limit value and a lower limit value of the threshold down-regulation ratio range. The controller can determine a down-regulation value using a product of the fourth difference value and the ratio. The controller can determine the final threshold down-regulation ratio using a sum of the down-regulation value and the lower limit value of the threshold down-regulation ratio range.

[0112] In an example, when the ratio is greater than 1, the value of the ratio is 1.

[0113] For example, when the threshold down-regulation ratio range can be 5-8%, and the frequency threshold value is 10 times / minute, if the operation frequency is 5 times / minute, the threshold down-regulation ratio is 6.5%. If the operation frequency is 0 times / minute, the threshold down-regulation ratio is 8.

[0114] S10222, the dry-burning prevention temperature threshold value is up-regulated according to the threshold down-regulation ratio, and a down-regulated dry-burning prevention temperature threshold value is determined.

[0115] Exemplarily, the controller can determine the adjustment amount of the dry-burning prevention temperature threshold value according to the product of the threshold adjustment ratio and the dry-burning prevention temperature threshold value. The controller can determine the final dry-burning prevention temperature threshold value according to the dry-burning prevention temperature threshold value minus the adjustment amount.

[0116] In an example, the dry-burning prevention temperature threshold value is adjusted upward if the real-time temperature of the cooking appliance is less than the first temperature threshold value and the operation frequency is greater than or equal to the frequency threshold value.

[0117] Exemplarily, the controller can further compare the real-time temperature with a normal cooking temperature range preset for the current cooking mode to determine whether the current cooking temperature is in a reasonable range. Meanwhile, the controller can comprehensively analyze the user operation frequency data to adjust the dry-burning prevention temperature threshold value.

[0118] In an example, the controller can determine that the real-time temperature is within the normal cooking temperature range preset for the current cooking mode when it is determined that the real-time temperature of the cooking appliance is less than the first temperature threshold value.

[0119] In an example, when it is determined that the real-time temperature is less than the first temperature threshold value, the controller can further determine whether the operation frequency is greater than or equal to the frequency threshold value. If the operation frequency is greater than or equal to the frequency threshold value, it indicates that the temperature fluctuation at this time is likely to be in the normal cooking process rather than a dry-burning sign, and the dry-burning prevention temperature threshold value is appropriately increased.

[0120] For example, if the user operates frequently and the temperature fluctuates within the normal cooking range, the controller can appropriately increase the dry-burning prevention temperature threshold value to avoid the dry-burning function from being mistakenly started.

[0121] For example, in the stir-frying mode, the normal cooking temperature range is 180-220℃, and the initial dry-burning prevention temperature threshold value is 250℃. When the user operation frequency reaches 15 times per minute and the real-time temperature is 230℃, the control module can increase the dry-burning prevention temperature threshold value to 270℃. For another example, if the user operation frequency is 5 times per minute and the temperature rises to 240℃, the control module reduces the dry-burning prevention temperature threshold value to 235℃.

[0122] S103, adjusting the heating gear according to the adjusted dry-burning prevention temperature threshold value and the real-time temperature.

[0123] Exemplarily, the controller can adjust the heating gear when the real-time temperature is about to reach the dry-burning prevention temperature threshold value after determining the adjusted dry-burning prevention temperature threshold value, so as to avoid the dry-burning of the cooking appliance.

[0124] In an example, the specific process in which the controller adjusts the heating gear can include:

[0125] S1031, determining a second temperature threshold and a third temperature threshold according to the adjusted dry-burning prevention temperature threshold; the second temperature threshold is less than the first temperature threshold; the third temperature threshold is greater than the first temperature threshold and less than the dry-burning prevention temperature threshold.

[0126] For example, the controller can be preset with an upper limit ratio and a lower limit ratio. The controller can determine the second temperature threshold according to the product of the dry-burning prevention temperature threshold and the lower limit ratio. The controller can determine the third temperature threshold according to the product of the dry-burning prevention temperature threshold and the upper limit ratio.

[0127] For example, the lower limit ratio can be 0.5, 0.6, 0.7, etc. For example, the upper limit ratio can be 0.8, 0.9, 0.95, etc.

[0128] In an example, the upper limit ratio is greater than the preset ratio in step S102. The lower limit ratio is less than the preset ratio.

[0129] S1032, if the real-time temperature is greater than or equal to the third temperature threshold, reducing the heating power. If the real-time temperature is less than the second temperature threshold, increasing the heating level.

[0130] For example, the controller can compare the real-time temperature and the second temperature threshold. If the real-time temperature is greater than or equal to the third temperature threshold, the heating power can be reduced to prevent the temperature from further rising and causing dry-burning. If the real-time temperature is less than the second temperature threshold, the heating level can be appropriately increased to maintain a stable cooking temperature and ensure that the cooking process is safe and smooth.

[0131] In an example, the second temperature threshold can be the minimum temperature required for normal cooking.

[0132] In an example, the controller can reduce the heating power by reducing the heating level. In addition, the controller can increase the heating power by increasing the heating level.

[0133] The dry burning prevention control method of the cooking equipment provided by the embodiments of the present application can obtain the real-time weight of the cooking utensil during the cooking process, thereby determining the weight change information of the cooking utensil within a preset time length and analyzing the operation frequency of the user on the cooking utensil within the preset time length; the real-time temperature of the cooking utensil is obtained, and when the real-time temperature of the cooking utensil reaches a first temperature threshold, the dry burning prevention temperature threshold is adjusted according to the operation frequency; the dry burning prevention temperature threshold and the real-time temperature are adjusted according to the adjusted dry burning prevention temperature threshold and the real-time temperature, so that more accurate dry burning prevention control is achieved, the misjudgment and missed judgment of dry burning prevention are reduced, the safety of the cooking equipment is improved, the dry burning risk can be more accurately judged, the misjudgment of the traditional fixed threshold dry burning prevention system is avoided, and safety accidents caused by dry burning are effectively prevented; and by dynamically adjusting the dry burning prevention temperature threshold, the misstart of the dry burning prevention function in the normal cooking process is reduced, the user can more smoothly perform the cooking operation, and the use experience of the cooking equipment is improved.

[0134] In an example, the dry burning prevention temperature threshold and the threshold up-regulation proportion range are determined according to the material of the cooking utensil and the cooking mode.

[0135] Exemplarily, the controller can obtain the dry burning prevention temperature threshold by searching the mapping table after obtaining the material of the cooking utensil and the cooking mode.

[0136] In an example, the mapping table can include a group of default dry burning prevention temperature thresholds that are pre-stored according to different cooking modes and common food types. For example, the cooking mode can be frying, stir-frying, boiling, stewing, etc.

[0137] For example, for the stir-frying mode, the dry burning prevention temperature threshold can be set to 250℃. For the porridge boiling mode, the dry burning prevention temperature threshold can be set to 100℃.

[0138] In an example, the dry burning prevention temperature threshold is obtained based on a large amount of experimental data and user usage habit statistics.

[0139] For example, the mapping table can be as shown in Table 1.

[0140] Table 1

[0141]

[0142] Among them, different materials of the cooking utensil can correspond to different dry burning prevention temperature thresholds. Different cooking utensils and different cooking methods can correspond to different threshold up-regulation proportion ranges and threshold down-regulation proportion ranges. Among them, the threshold up-regulation proportion range and the threshold down-regulation proportion range are the same under the same cooking utensil and the same cooking method.

[0143] Exemplarily, the pre-setting of the dry-burning prevention temperature threshold can better adapt to various cooking scenarios, realize flexible selection of the dry-burning prevention temperature threshold in different cooking modes, and adapt to diversified cooking demands, whether high-temperature frying or low-temperature stewing, and can provide appropriate dry-burning prevention protection.

[0144] In an example, the controller can also record the dry-burning prevention temperature threshold of the user in the cooking process in the cooking mode after completing the cooking. The controller can periodically update the dry-burning prevention temperature threshold corresponding to the cooking mode and the material of the cooking utensil recorded in the cooking device of the user according to the recorded dry-burning prevention temperature threshold.

[0145] In an example, the controller can identify the material of the cooking utensil by analyzing the collected real-time temperature.

[0146] Exemplarily, the controller can identify the point at which the temperature rises and then flattens by algorithmically analyzing the collected real-time temperature. The point is the boiling point. The temperature value corresponding to the boiling point can be a feature of the material of the pot. The controller can identify the material of the pot based on the temperature value of the boiling point and in combination with the weight data.

[0147] In an example, the weight data can include a slight change in weight during heating. For example, the weight data can be the evaporation rate. Alternatively, the weight data can reflect the thermal expansion coefficient of different materials

[0148] In an example, the controller can determine the material by querying a mapping table.

[0149] In an example, the mapping table can be as shown in Table 2.

[0150] Table 2

[0151]

[0152] In an implementation, the implementation process of the dry-burning prevention control method of the cooking device can be as shown in Figure 2

[0153] Exemplarily, the cooking device can be a stove, and the cooking utensil can be a pot. The user places the pot on the stove. The pot can contain water and food materials. The user ignites the stove and starts cooking.

[0154] S201, the weight sensor integrated in the stove detects the real-time weight of the pot.

[0155] In an example, the stove can detect the evaporation rate of the liquid in the pot by detecting the real-time weight of the pot. In addition, the stove can determine the user operation frequency according to the real-time weight of the pot. ​

[0156] S202, the temperature sensor integrated in the stove detects the real-time temperature of the pot.

[0157] S203, according to the evaporation rate and the real-time temperature, the boiling point of the pot is judged, the material of the pot is calculated, and the anti-dry burning temperature threshold corresponding to the material of the pot is called.

[0158] S204, when no one operates, the anti-dry burning temperature threshold A corresponding to the material of the pot is called.

[0159] Exemplarily, when the user does not operate the pot, the controller can directly perform anti-dry burning control according to the anti-dry burning temperature threshold A.

[0160] S205, when the user frequently operates, the anti-dry burning temperature threshold A is increased by 10-15% based on the anti-dry burning temperature threshold A.

[0161] Exemplarily, when the user frequently operates the pot, the controller can increase the anti-dry burning temperature threshold A based on the anti-dry burning temperature threshold A to obtain an anti-dry burning temperature threshold B. The controller can control the stove according to the anti-dry burning temperature threshold B. For example, the increase ratio can be between 10-15%.

[0162] S206, when the user operates at low frequency, the anti-dry burning temperature threshold A is decreased by 5-8% based on the anti-dry burning temperature threshold A.

[0163] Exemplarily, when the user operates the pot at low frequency, the controller can decrease the anti-dry burning temperature threshold A based on the anti-dry burning temperature threshold A to obtain an anti-dry burning temperature threshold C. The controller can control the stove according to the anti-dry burning temperature threshold C. For example, the decrease ratio can be between 5-8%.

[0164] S207, the controller can periodically adjust the anti-dry burning temperature threshold during the cooking process until the cooking is finished.

[0165] Figure 3 The structure diagram of the anti-dry burning control device of the cooking equipment provided in the present application is shown in the figure Figure 3 The cooking equipment is used for cooking the cooking utensil containing food materials. The anti-dry burning control device 300 provided in the embodiment includes:

[0166] The acquisition module 301 is used for determining the operation frequency of the user to the cooking utensil within a preset time length according to the weight change information of the cooking utensil within the preset time length during the cooking process. The weight change information includes the real-time weight determined according to the cooking utensil within the preset time length.

[0167] The processing module 302 is configured to adjust the dry-burning prevention temperature threshold value according to the operation frequency if the real-time temperature of the cooking utensil reaches a first temperature threshold value. The first temperature threshold value is determined according to the dry-burning prevention temperature threshold value. The heating level is adjusted according to the adjusted dry-burning prevention temperature threshold value and the real-time temperature.

[0168] In an example, the obtaining module 301 is configured to:

[0169] According to the weight change information of the cooking utensil within the preset time length, the number of operations of the user on the cooking utensil within the preset time length is determined.

[0170] According to the ratio of the number of operations to the preset time length, the operation frequency of the user on the cooking utensil within the preset time length is determined.

[0171] In an example, the obtaining module 301 is configured to:

[0172] According to the real-time weight of the cooking utensil within the preset time length, a weight change curve is generated.

[0173] The number of wave crests and wave troughs in the weight change curve is counted, and the number of operations is determined according to the number of wave crests and wave troughs.

[0174] In an example, the processing module 302 is configured to:

[0175] If the operation frequency is greater than or equal to a frequency threshold value, the dry-burning prevention temperature threshold value is adjusted upward according to the operation frequency.

[0176] If the operation frequency is less than the frequency threshold value, the dry-burning prevention temperature threshold value is adjusted downward according to the operation frequency.

[0177] In an example, the processing module 302 is configured to:

[0178] According to the operation frequency and a preset threshold value upward adjustment ratio range, a threshold value upward adjustment ratio is determined.

[0179] The dry-burning prevention temperature threshold value is adjusted according to the threshold value upward adjustment ratio, and an adjusted dry-burning prevention temperature threshold value is determined.

[0180] In an example, the processing module 302 is configured to:

[0181] According to the operation frequency and a preset threshold value downward adjustment ratio range, a threshold value downward adjustment ratio is determined.

[0182] The dry-burning prevention temperature threshold value is adjusted according to the threshold value downward adjustment ratio, and an adjusted dry-burning prevention temperature threshold value is determined.

[0183] In an example, the processing module 302 is configured to:

[0184] If the real-time temperature of the cooking utensil is less than the first temperature threshold value and the operating frequency is greater than or equal to the frequency threshold value, the dry-burning prevention temperature threshold value is increased.

[0185] In an example, the processing module 302 is configured to:

[0186] According to the adjusted dry-burning prevention temperature threshold value, a second temperature threshold value and a third temperature threshold value are determined. The second temperature threshold value is less than the first temperature threshold value. The third temperature threshold value is greater than the first temperature threshold value and less than the dry-burning prevention temperature threshold value.

[0187] If the real-time temperature is greater than or equal to the third temperature threshold value, the heating power is decreased.

[0188] If the real-time temperature is less than the second temperature threshold value, the heating gear is increased.

[0189] In an example, the dry-burning prevention temperature threshold value, the threshold value increasing proportion range and the threshold value decreasing proportion range are determined according to the material and the cooking mode of the cooking utensil.

[0190] The dry-burning prevention control device of the cooking equipment provided in the embodiment can execute the method provided in the method embodiment, and has similar implementation principles and technical effects, which will not be described here again in the embodiment.

[0191] Figure 4 A structural schematic diagram of the controller provided in the embodiment is shown in FIG. 4. As shown in FIG. 4, the controller 400 provided in the embodiment includes at least one processor 401 and a memory 402. Optionally, the device 40 further includes a communication component 403. The processor 401, the memory 402 and the communication component 403 are connected through a bus 404. Figure 4

[0192] In the specific implementation process, the at least one processor 401 executes the computer execution instructions stored in the memory 402, so that the at least one processor 401 executes the method described above.

[0193] The specific implementation process of the processor 401 can refer to the method embodiment described above, and has similar implementation principles and technical effects, which will not be described here again in the embodiment.

[0194] ​In the above embodiments, it should be understood that the processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor and the like. The steps of the method disclosed in combination with the application can be directly embodied as hardware processor execution, or executed by a combination of hardware and software modules in the processor.

[0195] The memory can include a random access memory (RAM), and can also include a non-volatile memory (NVM), such as at least one disk memory.

[0196] The bus can be an industry standard architecture (ISA) bus, a peripheral component (PCI) bus, an extended industry standard architecture (EISA) bus, or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For the convenience of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

[0197] The present application also provides a computer program product, comprising a computer program, which is executed by a processor to implement the above method.

[0198] The present application also provides a computer readable storage medium, which stores computer execution instructions, and when the processor executes the computer execution instructions, the above method is implemented.

[0199] The above-mentioned readable storage medium can be realized by any type of volatile or nonvolatile storage devices or a combination thereof, such as Static Random-Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special purpose computer.

[0200] An exemplary readable storage medium is coupled to the processor, so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an Application Specific Integrated Circuit (ASIC). Of course, the processor and the readable storage medium can also exist as discrete components in a device.

[0201] The division of units is only a logical functional division, and in actual implementation, there can be another division manner, for example, 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 or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0202] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on multiple network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment.

[0203] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0204] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the embodiments of the method of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk, and various media that can store program codes.

[0205] Those of ordinary skill in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction-related hardware. The aforementioned program can be stored in a computer readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, a magnetic disk or an optical disk, and various media that can store program codes.

[0206] Finally, it should be noted that: those skilled in the art will easily think of other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application that follow the general principles of the present application and include common knowledge or conventional technical means in the art that are not disclosed in the present application, and is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is only limited by the appended claims.

Claims

1. A method for preventing dry burning of a cooking device, characterized in that: The cooking device is used to cook a cooking utensil containing food, and the method includes: During the cooking process, the user determines the frequency of operation of the cooking appliance within a preset time period based on the weight change information of the cooking appliance within a preset time period; the weight change information includes the real-time weight of the cooking appliance within the preset time period; If the real-time temperature of the cooking appliance reaches a first temperature threshold, adjusting the anti-dry-boiling temperature threshold according to the operating frequency; the first temperature threshold is determined according to the anti-dry-boiling temperature threshold; The heating gear is adjusted according to the adjusted anti-dry-burn temperature threshold and the real-time temperature.

2. The method according to claim 1, characterized in that Determining a user's operation frequency of the cooking appliance within a preset time period based on weight change information of the cooking appliance within a preset time period includes: determining, based on weight change information of the cooking utensil within a preset time period, the number of operations performed by the user on the cooking utensil within the preset time period; The operation frequency of the cooking appliance by the user within the preset time period is determined according to a ratio of the number of operations to the preset time period.

3. The method according to claim 2, characterized in that Determining, based on weight change information of the cooking appliance within a preset time period, the number of operations performed by the user on the cooking appliance within the preset time period, includes: generating a weight change curve based on the real-time weight of the cooking appliance within a preset time period; The number of peaks and troughs in the weight change curve is counted, and the number of operations is determined according to the number of peaks and troughs.

4. The method according to any one of claims 1 to 3, characterized in that Adjusting the anti-dry-burn temperature threshold according to the operating frequency includes: If the operating frequency is greater than or equal to the frequency threshold, then increasing the anti-dry-burn temperature threshold according to the operating frequency; If the operating frequency is less than the frequency threshold, the anti-dry-burn temperature threshold is lowered according to the operating frequency.

5. The method according to claim 4, characterized in that Raising the anti-dry-burn temperature threshold according to the operating frequency includes: Determining a threshold increase ratio according to the operating frequency and a preset threshold increase ratio range; The anti-dry-burn temperature threshold is increased according to the threshold increase ratio, and the increased anti-dry-burn temperature threshold is determined.

6. The method according to claim 4, characterized in that Lowering the anti-dry-burn temperature threshold according to the operating frequency includes: Determining a threshold reduction ratio according to the operating frequency and a preset threshold reduction ratio range; The anti-dry-burn temperature threshold is increased according to the threshold reduction ratio, and the anti-dry-burn temperature threshold after reduction is determined.

7. The method according to any one of claims 1 to 3, characterized in that The method further comprises: If the real-time temperature of the cooking appliance is lower than the first temperature threshold and the operating frequency is higher than or equal to a frequency threshold, the anti-dry-boiling temperature threshold is increased.

8. The method according to any one of claims 1 to 3, characterized in that Adjusting the heating gear according to the adjusted anti-dry-burning temperature threshold and the real-time temperature includes: Determining a second temperature threshold and a third temperature threshold according to the adjusted anti-dry-boiling temperature threshold; the second temperature threshold is less than the first temperature threshold; the third temperature threshold is greater than the first temperature threshold and less than the anti-dry-boiling temperature threshold; If the real-time temperature is greater than or equal to the third temperature threshold, lowering the heating power; If the real-time temperature is lower than the second temperature threshold, the heating level is increased.

9. The method according to any one of claims 1 to 3, characterized in that The anti-dry-boiling temperature threshold, the threshold increase ratio range, and the threshold decrease ratio range are determined according to the material of the cooking utensil and the cooking mode.

10. A cooking device anti-dry burning control device, characterized in that: The cooking device is used to cook a cooking vessel containing food, and includes: an acquisition module configured to determine, during a cooking process, a frequency of operation of the cooking utensil by the user within a preset time period based on weight change information of the cooking utensil within a preset time period; the weight change information includes information determined based on the real-time weight of the cooking utensil within the preset time period; a processing module, configured to adjust a boil-dry prevention temperature threshold according to the operating frequency if the real-time temperature of the cooking appliance reaches a first temperature threshold; the first temperature threshold being determined according to the boil-dry prevention temperature threshold; The heating gear is adjusted according to the adjusted anti-dry-burn temperature threshold and the real-time temperature.

11. A controller, characterized in that: include: Memory, processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 1 to 9.

12. A cooking device, characterized in that: include: The controller, weight sensor and temperature sensor according to claim 11; the weight sensor is used to monitor the weight of the cooking utensil; the temperature sensor is used to monitor the temperature of the cooking utensil.

13. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 9 when executed by a processor.

14. A computer program product, characterized in that The invention comprises a computer program, which implements the method according to any one of claims 1 to 9 when the computer program is executed by a processor.

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