Dry burning judgment method, device and system and storage medium

Abstract

The invention discloses a dry burning judgment method and device, equipment and a storage medium, and relates to the technical field of smart home, and the method comprises the steps: determining the effective power of a kitchen range according to the rotation angle of a rotary knob of the kitchen range; determining a preset number of equivalent temperatures according to the cookware temperature, and determining a plurality of temperature differences and temperature rise speed change conditions according to the equivalent temperatures; determining a cooking state judgment condition according to the effective power, and determining a cooking state based on the cooking state judgment condition, the effective power, each equivalent temperature and each temperature difference; determining a dry-burning judgment condition according to the effective power and the cooking state, and performing dry-burning judgment on the cookware based on the equivalent temperatures, the temperature differences, the temperature rise speed change conditions and the dry-burning judgment condition to obtain a dry-burning judgment result. According to the technical scheme, the dry-burning judgment is performed based on the dry-burning judgment condition corresponding to the current cooking state and the current fire gear, so that more accurate dry-burning judgment is realized, a more accurate dry-burning judgment result is obtained, and the user experience is improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of smart home technology, and in particular to a dry-boiling judgment method, device, system and storage medium. Background Art

[0002] Gas stoves are a common stove in modern households, which burn gas to generate open flames to heat or cook food. This type of gas stove is generally equipped with a knob on its panel to control the firepower and the firepower switch, and the user turns the gas stove on / off with the knob. However, in some cases, the user may forget to turn off the gas stove during cooking, and the materials in the cooker are heated for a long time, and the liquid is boiled dry, resulting in dry burning. If several burns continue, not only will the food be burned and wasteful, but in severe cases, it will also cause the temperature of the cooker to be too high, causing a fire. Therefore, in the field of gas stoves, preventing the occurrence of dry burning has become an important research topic.

[0003] In the prior art, a fixed temperature threshold is usually set, and dry burning is determined to have occurred after the temperature of the pot is monitored to exceed the temperature threshold.

[0004] However, the actual cooking process is very complicated. Relying on a single temperature threshold to judge dry burning in complex cooking scenarios has problems such as low accuracy and untimely judgment. Summary of the invention

[0005] The present invention provides a dry burning judgment method, device, system and storage medium to achieve fast and accurate dry burning judgment.

[0006] In a first aspect, an embodiment of the present invention provides a dry burning judgment method, comprising:

[0007] determining the effective power of the cooker according to the rotation angle of the cooker knob;

[0008] After determining that the state of the cooker has changed, determining a preset number of equivalent temperatures according to the temperature of the cooker, and determining a plurality of temperature differences and temperature rise rate changes according to each of the equivalent temperatures;

[0009] determining a cooking state based on the effective power and each of the equivalent temperatures and each of the temperature differences;

[0010] After determining the dry-burning judgment condition of the cookware according to the cooking state and the effective power, the cookware is judged to be dry-burning based on the equivalent temperatures, the temperature differences, the changes in the temperature rise rate and the dry-burning judgment condition to obtain a dry-burning judgment result.

[0011] The technical solution of the embodiment of the present invention provides a dry-burning judgment method, comprising: determining the effective power of the stove according to the rotation angle of the stove knob; determining a preset number of equivalent temperatures according to the temperature of the pot, and determining multiple temperature differences and temperature rise rate changes according to each of the equivalent temperatures; determining a cooking state judgment condition according to the effective power, and determining the cooking state based on the cooking state judgment condition and the effective power, each of the equivalent temperatures and each of the temperature differences; determining a dry-burning judgment condition according to the effective power and the cooking state, and performing a dry-burning judgment on the pot based on each of the equivalent temperatures, each of the temperature differences and the temperature rise rate changes and the dry-burning judgment condition to obtain a dry-burning judgment result. The above technical scheme determines the rotation angle of the stove knob when the stove is running, and then determines the effective power of the stove based on the rotation angle, so as to quickly and conveniently determine the relatively accurate effective power of the stove, determine the preset number of equivalent temperatures required for steaming state judgment and dry burning judgment, and then determine the multiple temperature differences of the pot temperature within the time period corresponding to the preset number of equivalent temperatures and the change in the temperature rise rate of the pot temperature during this period through the determined preset number of equivalent temperatures, and then determine the cooking state judgment condition based on the firepower level corresponding to the effective power, and then determine the cooking state based on the cooking state judgment condition and each equivalent temperature and each temperature difference, and then determine the dry burning judgment condition based on the firepower level corresponding to the effective power and the cooking state, and perform dry burning judgment based on the dry burning judgment condition corresponding to the current cooking state and the current firepower level, so as to achieve more accurate dry burning judgment, obtain more accurate dry burning judgment results, and improve user experience.

[0012] Furthermore, determining the effective power of the stove according to the rotation angle of the stove knob includes:

[0013] The effective power is determined in a relationship diagram between angle and power according to the rotation angle.

[0014] Further, a preset number of equivalent temperatures are determined according to the temperature of the cookware, and a plurality of temperature differences and temperature rise rate change conditions are determined according to each of the equivalent temperatures, including:

[0015] Determining the preset number of equivalent temperatures according to the truncated mean values ​​of the pot temperatures within the preset number of preset time periods;

[0016] Determine the temperature difference between adjacent equivalent temperatures, the temperature difference in the first time interval, and the temperature difference in the second time interval according to each of the equivalent temperatures;

[0017] The temperature rise change is determined according to the temperature difference of the first time interval corresponding to the current moment, the temperature difference of the first time interval corresponding to the first time interval before the current moment, and the temperature difference of the first time interval corresponding to the second time interval before the current moment.

[0018] Further, determining a cooking state judgment condition according to the effective power includes:

[0019] A cooking state judgment parameter is determined according to a power range to which the effective power belongs, and the cooking state judgment condition is determined according to the cooking state judgment parameter, wherein the cooking state judgment condition includes a steaming judgment condition and a frying judgment condition.

[0020] Further, determining the cooking state based on the cooking state judgment condition and the effective power, each of the equivalent temperatures and each of the temperature differences includes:

[0021] Determine a boiling judgment result according to the boiling judgment condition in the steaming judgment condition, the current equivalent temperature, the temperature difference between adjacent equivalent temperatures, and the temperature difference in the first time interval, and when it is determined that the boiling judgment result is boiling, update the current boiling number;

[0022] In the case where it is determined that the current boiling number is greater than the boiling number threshold in the boiling judgment condition, determining that the cooking state is boiling;

[0023] The cooking state is determined to be frying or stir-frying according to the frying judgment condition and the temperature difference between adjacent equivalent temperatures, the temperature difference in the first time interval, and the temperature difference in the second time interval.

[0024] Further, determining a dry-boiling judgment condition according to the effective power and the cooking state includes:

[0025] Determine, according to the effective power, a stir-fry dry-burn judgment parameter in a stir-fry cooking state, a steaming dry-burn judgment parameter in a steaming cooking state, and a frying dry-burn judgment parameter in a frying cooking state;

[0026] The stir-frying dry-burning judgment condition is determined according to the stir-frying dry-burning judgment parameter, the steaming dry-burning judgment condition is determined according to the steaming dry-burning judgment parameter, and the frying dry-burning judgment condition is determined according to the frying dry-burning judgment parameter.

[0027] Further, based on the equivalent temperatures, the temperature differences, the temperature rise rate changes, and the dry-burning judgment conditions, the cookware is judged to be dry-burning, and a dry-burning judgment result is obtained, including:

[0028] When the cooking state is cooking, the equivalent temperatures, the temperature differences and the temperature rise rate changes are substituted into the cooking dry-burning judgment condition to determine the dry-burning judgment result;

[0029] When the cooking state is steaming, the equivalent temperatures, the temperature differences and the temperature rise rate changes are substituted into the steaming and dry-burning judgment condition to determine the dry-burning judgment result;

[0030] When the cooking state is frying, the equivalent temperatures, the temperature differences and the temperature rise rate changes are substituted into the frying dry-frying judgment condition to determine the dry-frying judgment result.

[0031] In a second aspect, an embodiment of the present invention further provides a dry burning judgment device, comprising:

[0032] A gear position determination module, used to determine the effective power of the cooker according to the rotation angle of the cooker knob;

[0033] An execution module, for determining a preset number of equivalent temperatures according to the temperature of the cooker after determining that the state of the cooker has changed, and determining a plurality of temperature differences and temperature rise rate change conditions according to each of the equivalent temperatures;

[0034] a state determination module, configured to determine a cooking state based on the effective power and each of the equivalent temperatures and each of the temperature differences;

[0035] The judgment module is used to determine the dry-burning judgment condition of the cookware according to the cooking state and the effective power, and then perform dry-burning judgment on the cookware based on each of the equivalent temperatures, each of the temperature differences, the change of the temperature rise rate and the dry-burning judgment condition to obtain a dry-burning judgment result.

[0036] In a third aspect, an embodiment of the present invention further provides an electronic device, the device comprising:

[0037] at least one processor; and a memory communicatively coupled to the at least one processor;

[0038] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the dry burning judgment method as described in any one of the first aspects.

[0039] In a fourth aspect, an embodiment of the present invention further provides a storage medium comprising computer executable instructions, wherein the computer executable instructions, when executed by a computer processor, are used to execute the dry burning judgment method as described in any one of the first aspects.

[0040] In a fifth aspect, the present application provides a computer program product, which includes computer instructions. When the computer instructions are executed on a computer, the computer executes the dry burning judgment method provided in the first aspect.

[0041] It should be noted that the above-mentioned computer instructions may be stored in whole or in part on a computer-readable storage medium. The computer-readable storage medium may be packaged together with the processor of the dry-burning judgment device, or may be packaged separately from the processor of the dry-burning judgment device, and this application does not limit this.

[0042] The description of the second, third, fourth and fifth aspects in this application can refer to the detailed description of the first aspect; and the beneficial effects of the description of the second, third, fourth and fifth aspects can refer to the beneficial effect analysis of the first aspect, which will not be repeated here.

[0043] In this application, the name of the dry-burning judgment device does not limit the device or functional module itself. In actual implementation, these devices or functional modules may appear with other names. As long as the functions of each device or functional module are similar to those of this application, they fall within the scope of the claims of this application and their equivalent technologies.

[0044] These and other aspects of the present application will become more apparent from the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0046] Figure 1 A flow chart of a dry burning determination method provided by an embodiment of the present invention;

[0047] Figure 2 A flow chart of another dry burning determination method provided by an embodiment of the present invention;

[0048] Figure 3 is the relationship diagram between angle and power;

[0049] Figure 4a This is a typical curve for cooking. Figure 4b This is a typical curve for cooking meat. Figure 4c This is a typical curve for cooking porridge. Figure 4d This is a typical water boiling curve. Figure 4e Typical curve for frying;

[0050] Figure 5 A schematic diagram of the structure of a dry burning judgment device provided by an embodiment of the present invention;

[0051] Figure 6 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0053] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0054] The terms "first" and "second" and the like in the specification and drawings of this application are used to distinguish different objects, or to distinguish different processing of the same object, rather than to describe a specific order of objects.

[0055] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0056] It should be mentioned before discussing exemplary embodiments in more detail that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe various operations (or steps) as sequential processes, many operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of various operations can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the accompanying drawings. The process can correspond to methods, functions, procedures, subroutines, subprograms, etc. In addition, the embodiments in the present invention and the features in the embodiments can be combined with each other without conflict.

[0057] It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0058] In the description of the present application, unless otherwise specified, “plurality” means two or more.

[0059] Figure 1Flow chart of a dry-burning judgment method provided in an embodiment of the present invention. This embodiment is applicable to situations where rapid and accurate dry-burning judgment of a cooker is required. The method can be executed by a dry-burning judgment device, such as Figure 1 As shown, the specific steps include:

[0060] Step 110: Determine the effective power of the stove according to the rotation angle of the stove knob.

[0061] The stove includes a table top that carries the cooker and a bottom shell located below the table top. The table top and the bottom shell are used to accommodate the gas pipe and the main control board of the stove and related circuit components. The table top is provided with a stove eye and a knob. The stove eye is used to burn gas to generate fire, and the knob is used to adjust the fire level.

[0062] An angle sensor is installed on the rotating shaft of the knob. When the angle sensor rotates with the knob, it can convert the rotation angle into an electrical signal or other measurable signal output. By connecting to corresponding measuring equipment (such as a data acquisition device, microcontroller, etc.) to read and analyze these signals, the accurate rotation angle of the knob can be obtained.

[0063] Specifically, when the knob of the stove is rotated to different rotation angles, the stove delivers different effective powers to the pot, and the corresponding relationship between the rotation angle of the stove knob and the effective power is measured in advance. Therefore, after determining the rotation angle of the stove knob, the effective power of the stove can be determined according to the rotation angle and the corresponding relationship between the rotation angle and the effective power.

[0064] In the embodiment of the present invention, the rotation angle of the stove knob is determined when the stove is running, and the effective power of the stove is determined according to the rotation angle, so that the effective power of the stove can be quickly and conveniently determined with high accuracy.

[0065] Step 120: determining a preset number of equivalent temperatures according to the temperature of the cookware, and determining a plurality of temperature differences and temperature rise rate change conditions according to each of the equivalent temperatures.

[0066] The pot temperature can be understood as the bottom temperature of the pot, which can be obtained by a temperature sensor arranged at the stove. The equivalent temperature can be understood as the truncated mean value of the pot temperature within a preset time period.

[0067] Specifically, after determining that the stove is running stably, an equivalent temperature is determined every preset time period until a preset number of equivalent temperatures are determined. At this time, multiple temperature differences and temperature rise rate changes can be determined according to the preset number of equivalent temperatures.

[0068] The specific values ​​of the preset time period and the preset number can be set according to actual needs. For example, the preset time period can be 5s, and the preset number can be 9. Therefore, 5 pot temperatures within 5s can be obtained, and the truncated average of the 5 pot temperatures can be used as the first equivalent temperature. Based on the same method, 9 equivalent temperatures can be determined within 45S. The multiple temperature differences can include the temperature difference between adjacent equivalent temperatures, the temperature difference between the first time interval, and the temperature difference between the second time interval. The first time interval can be 20s, and the second time interval can be 40s. Therefore, the first adjacent temperature difference can be determined based on the determined fifth equivalent temperature and the fourth equivalent temperature, the second adjacent temperature difference can be determined based on the determined fourth equivalent temperature and the third equivalent temperature, the third adjacent temperature difference can be determined based on the determined third equivalent temperature and the second equivalent temperature, the fourth adjacent temperature difference can be determined based on the determined second equivalent temperature and the first equivalent temperature, the 20S temperature difference can be determined based on the determined fifth equivalent temperature and the first equivalent temperature, and the 40S temperature difference can be determined based on the determined ninth equivalent temperature and the first equivalent temperature. Then, the change of the temperature rise rate can be determined. When it is determined that the difference between the current 20S temperature difference and the previous 20S temperature difference, and the difference between the previous 20S temperature difference and the previous 20S temperature difference corresponding to the previous 20S are not greater than the temperature threshold, and the current 20S temperature difference, the previous 20S temperature difference, and the previous 20S temperature difference corresponding to the previous 20S are all greater than 0, it is determined that the change of the temperature rise rate is that the temperature rise rate is slowing down. When it is determined that the difference between the current 20S temperature difference and the previous 20S temperature difference, and the difference between the previous 20S temperature difference and the previous 20S temperature difference corresponding to the previous 20S are not less than the temperature threshold, and the current 20S temperature difference, the previous 20S temperature difference, and the previous 20S temperature difference corresponding to the previous 20S are all greater than 0, it is determined that the change of the temperature rise rate is that the temperature rise rate is accelerating.

[0069] In the embodiment of the present invention, multiple temperature differences and changes in the temperature rise rate of the pot temperature during a period of time are determined through multiple equivalent temperatures of the pot temperature during a period of time, providing a data basis for determining the cooking state and making dry-burning judgments.

[0070] Step 130: determining a cooking state judgment condition according to the effective power, and determining a cooking state based on the cooking state judgment condition, the effective power, each of the equivalent temperatures, and each of the temperature differences.

[0071] Cooktops are usually provided with multiple firepower levels, and each firepower level corresponds to a certain effective power range. Moreover, the effective power range is related to the rated power, thermal efficiency, and number of levels of the cooktop. When the rated power of the cooktop is 5.2 kW, the thermal efficiency is 75%, and the number of levels is 3, the maximum effective power can be determined as 5.2 kW * 75% = 3.9 kW. The effective power range corresponding to the first level (low fire) is 0 KW < Ph <= 1.3 KW, the effective power range corresponding to the second level (medium fire) is 1.3 KW < Ph <= 2.6 KW, and the effective power range corresponding to the third level (high fire) is 2.6 KW < Ph <= 3.9 KW.

[0072] Cooking states can include stir-frying, steaming, and frying. To perform dry-burning judgment more accurately, different dry-burning judgment conditions can be set for different cooking states. Therefore, before performing dry-burning judgment, the cooking state needs to be determined. For different firepower levels, there are different cooking state judgment conditions. Therefore, after determining the effective power, the firepower level can be determined according to the effective power range corresponding to each firepower level and the effective power. Furthermore, the cooking state judgment conditions can be determined according to the firepower level.

[0073] The cooking state judgment conditions include the steaming state judgment conditions and the frying state judgment conditions. The steaming state judgment conditions include the upper limit of the boiling temperature, the lower limit of the boiling temperature, the boiling times threshold, and the boiling temperature difference threshold. If the current equivalent temperature is greater than the lower limit of the boiling temperature and less than the upper limit of the boiling temperature, and the absolute values of the first adjacent temperature difference, the second adjacent temperature difference, the third adjacent temperature difference, the fourth adjacent temperature difference, and the 20S temperature difference are all less than the boiling temperature difference threshold, then the current state is determined to be boiling, and the current boiling times are updated. If the current boiling times are greater than the boiling times threshold, then the cooking state is determined to be the steaming cooking state; the frying state judgment conditions include the frying temperature difference threshold, the 20S frying temperature difference threshold, the 40S frying temperature difference threshold, and the frying dry-burning threshold. If the absolute values of the first adjacent temperature difference, the second adjacent temperature difference, the third adjacent temperature difference, and the fourth adjacent temperature difference are all not less than the frying temperature difference threshold, the 20S temperature difference is not less than the 20S frying temperature difference threshold, and moreover, the current 40S temperature difference and the previous 40S temperature difference are both not less than the 40S frying temperature difference threshold, then the cooking state is determined to be the frying cooking state. Otherwise, the cooking state is determined to be the stir-frying cooking state.

[0074] In the embodiments of the present invention, determining the cooking state facilitates dry-burning judgment according to the dry-burning judgment conditions corresponding to the cooking state, and improves the accuracy of dry-burning judgment.

[0075] Step 140: Determine the dry-burning judgment conditions according to the effective power and the cooking state, and perform dry-burning judgment on the cookware based on each of the equivalent temperatures, each of the temperature differences, the change situation of the temperature rise rate, and the dry-burning judgment conditions to obtain a dry-burning judgment result.

[0076] Specifically, after determining the cooking state and effective power, the dry burning judgment condition corresponding to the current cooking state and the current fire power level can be determined in combination with the cooking state and the fire power level corresponding to the effective power, so as to determine the dry burning judgment condition that is more in line with the current state of the stove. Furthermore, the cookware can be judged to be dry burning based on the dry burning judgment condition and the aforementioned changes in the equivalent temperatures, temperature differences, and temperature rise rates. Specifically, the equivalent temperatures, temperature differences, and temperature rise rates can be substituted into the dry burning judgment condition. If the dry burning judgment condition is met, the dry burning judgment result is determined to be dry burning.

[0077] In an embodiment of the present invention, after determining the dry-burning judgment condition corresponding to the current cooking state and the current firepower level in combination with the cooking state and the firepower level corresponding to the effective power, a dry-burning judgment is performed based on the dry-burning judgment condition corresponding to the current cooking state and the current firepower level, thereby achieving a more accurate dry-burning judgment and obtaining a more accurate dry-burning judgment result.

[0078] The dry-burn judgment method provided in an embodiment of the present invention includes: determining the effective power of the stove according to the rotation angle of the stove knob; determining a preset number of equivalent temperatures according to the temperature of the pot, and determining multiple temperature differences and temperature rise rate changes according to each of the equivalent temperatures; determining a cooking state judgment condition according to the effective power, and determining the cooking state based on the cooking state judgment condition and the effective power, each of the equivalent temperatures and each of the temperature differences; determining a dry-burn judgment condition according to the effective power and the cooking state, and performing a dry-burn judgment on the pot based on each of the equivalent temperatures, each of the temperature differences and the temperature rise rate changes and the dry-burn judgment condition to obtain a dry-burn judgment result. The above technical scheme determines the rotation angle of the stove knob when the stove is running, and then determines the effective power of the stove based on the rotation angle, so as to quickly and conveniently determine the relatively accurate effective power of the stove, determine the preset number of equivalent temperatures required for steaming state judgment and dry burning judgment, and then determine the multiple temperature differences of the pot temperature within the time period corresponding to the preset number of equivalent temperatures and the change in the temperature rise rate of the pot temperature during this period through the determined preset number of equivalent temperatures, and then determine the cooking state judgment condition based on the firepower level corresponding to the effective power, and then determine the cooking state based on the cooking state judgment condition and each equivalent temperature and each temperature difference, and then determine the dry burning judgment condition based on the firepower level corresponding to the effective power and the cooking state, and perform dry burning judgment based on the dry burning judgment condition corresponding to the current cooking state and the current firepower level, so as to achieve more accurate dry burning judgment, obtain more accurate dry burning judgment results, and improve user experience.

[0079] Figure 2 This is a flow chart of another dry burning judgment method provided by an embodiment of the present invention. This embodiment is specific based on the above embodiment. Figure 2As shown, in this embodiment, the method may further include:

[0080] Step 210: Determine the effective power of the stove according to the rotation angle of the stove knob.

[0081] In one implementation, step 210 may specifically include:

[0082] The effective power is determined in a relationship diagram between angle and power according to the rotation angle.

[0083] Specifically, after determining the rotation angle of the stove knob according to the data output by the angle sensor, Figure 3 The power corresponding to the rotation angle can be determined from the angle and power relationship diagram shown in Figure 3 As shown, in the angle-power relationship diagram, the horizontal axis represents the rotation angle of the stove knob, and the vertical axis represents the effective power. The effective power corresponding to the rotation angle of the stove knob in the angle-power relationship diagram can be determined as the effective power of the stove.

[0084] In the embodiment of the present invention, the rotation angle of the stove knob is determined when the stove is running, and the effective power of the stove is determined according to the rotation angle, so that the effective power of the stove can be quickly and conveniently determined with high accuracy.

[0085] Step 220: determining a preset number of equivalent temperatures according to the temperature of the cookware, and determining a plurality of temperature differences and temperature rise rate change conditions according to each of the equivalent temperatures.

[0086] In one implementation, step 220 may specifically include:

[0087] The preset number of equivalent temperatures are determined based on the truncated mean value of the pot temperature within the preset number of preset time periods; the temperature difference between adjacent equivalent temperatures, the temperature difference of the first time interval and the temperature difference of the second time interval are determined based on each of the equivalent temperatures; the temperature rise change is determined based on the temperature difference of the first time interval corresponding to the current moment, the temperature difference of the first time interval corresponding to the first time interval before the current moment, and the temperature difference of the first time interval corresponding to the second time interval before the current moment.

[0088] Specifically, after determining that the cooker is running stably, an equivalent temperature is determined every preset time period until a preset number of equivalent temperatures are determined. Then, multiple temperature differences and temperature rise rate changes can be determined based on the preset number of equivalent temperatures. When the preset time period is 5 seconds and the preset number is 9, 5 pot temperatures can be obtained within 5 seconds, and the truncated average of the 5 pot temperatures is used as the first equivalent temperature. Based on the same method, 9 equivalent temperatures can be determined within 45 seconds. Multiple temperature differences can include the temperature difference between adjacent equivalent temperatures, the temperature difference of the first time interval, and the temperature difference of the second time interval. The first time interval can be 20 seconds, and the second time interval can be 40 seconds.

[0089] Therefore, the first adjacent temperature difference detT(i)=x(i)-x(i-1), the second adjacent temperature difference detT(i-1)=x(i-1)-x(i-2), the third adjacent temperature difference detT(i-2)=x(i-2)-x(i-3), the fourth adjacent temperature difference detT(i-3)=x(i-3)-x(i-4), 20s temperature difference d(i)=x(i)-x(i-4), and 40s temperature difference k(i)=x(i)-x(i-8).

[0090] Furthermore, the change of the temperature rise rate can be determined. When it is determined that the following conditions are satisfied at the same time: d(i)-d(i-1)≤Aconstant, d(i-1)-d(i-2)≤Aconstant, d(i)>0, d(i-1)>0, d(i-2)>0; when it is determined that d(i)-d(i-1)≥Aconstant, d(i-1)-d(i-2)≥Aconstant, d(i)>0, d(i-1)>0, d(i-2)>0, it is determined that the change of the temperature rise rate is that the temperature rise rate is getting faster.

[0091] In the embodiment of the present invention, multiple temperature differences and changes in the temperature rise rate of the pot temperature during a period of time are determined through multiple equivalent temperatures of the pot temperature during a period of time, providing a data basis for determining the cooking state and making dry-burning judgments.

[0092] Step 230: Determine a cooking status judgment condition according to the effective power.

[0093] In one implementation, step 230 may specifically include:

[0094] A cooking state judgment parameter is determined according to a power range to which the effective power belongs, and the cooking state judgment condition is determined according to the cooking state judgment parameter, wherein the cooking state judgment condition includes a steaming judgment condition and a frying judgment condition.

[0095] Specifically, the firepower level of the cooker can be determined according to the power range to which the effective power belongs, and then the cooking state judgment parameter can be determined according to the firepower level. The steaming state judgment parameter can include the boiling temperature upper limit, the boiling temperature lower limit, the boiling number threshold and the boiling temperature difference threshold. The frying state judgment parameter can include the frying temperature difference threshold, the 20s frying temperature difference threshold, the 40s frying temperature difference threshold and the frying dry burning threshold. Specifically, the steaming state judgment parameter can be determined according to Table 1, and the frying state judgment parameter can be determined according to Table 2.

[0096] Table 1

[0097]

[0098]

[0099] Table 2

[0100] Firepower level 3rd gear 2nd gear 1st gear Frying temperature difference threshold det_fry 5 3 1 20s frying temperature difference threshold det_fry20 6 4 2 40s frying temperature difference threshold det_fry40 11 8 3

[0101] Furthermore, the cooking state judgment condition can be determined according to the cooking state judgment parameter, that is, the steaming state judgment condition can be determined according to the steaming state judgment parameter, and the frying state judgment condition can be determined according to the frying state judgment parameter. For example, the steaming state judgment condition is: if the current equivalent temperature is greater than the lower limit of the boiling temperature and less than the upper limit of the boiling temperature, the absolute values ​​of the first adjacent temperature difference, the second adjacent temperature difference, the third adjacent temperature difference, the fourth adjacent temperature difference and the 20s temperature difference are all less than the boiling temperature difference threshold, then the current state is determined to be boiling, and the current boiling number is updated. If the current boiling number is greater than the boiling number threshold, the cooking state is determined to be the steaming cooking state.

[0102] It should be noted that after the current state is boiling, the current equivalent temperature can be updated to the current boiling temperature. The minimum boiling temperature is updated to the minimum value of all boiling temperatures, and the maximum boiling temperature is updated to the maximum value of all boiling temperatures. The default value of the boiling temperature upper limit FT_max is a 1*n 0 matrix. If the current state is boiling, the boiling temperature boil_T(i) is determined to be = current equivalent temperature x(i); if the current state is not boiling, the boiling temperature boil_T(i) is determined to be = boil_T(i-1), that is, the current boiling temperature is equal to the previous boiling temperature value. The default value of the minimum boiling temperature bT_min is 0, which is the minimum value of the boiling temperature boil_T(i). When the firepower level changes, this value will be restored to the default value. Each time it is judged to be in a boiling state, the value will be updated. The default value of the maximum boiling temperature bT_max is 0, which is the maximum value of the boiling temperature boil_T(i). When the firepower level changes, this value will be restored to the default value. Each time the boiling state is determined, the value will be updated. The default value of the boiling number bNum is 0. When the power level changes, this value will return to the default value.

[0103] Frying state judgment condition: If the absolute values ​​of the first adjacent temperature difference, the second adjacent temperature difference, the third adjacent temperature difference, and the fourth adjacent temperature difference are all less than the boiling temperature difference threshold, the absolute value of the 20s temperature difference is greater than the 20s frying temperature difference threshold, and the 40s temperature difference average is greater than the 40s temperature difference limit, then the cooking state is determined to be the frying cooking state.

[0104] Of course, if neither the steaming state judgment condition nor the frying state judgment condition is met, the cooking state is determined to be the stir-fry cooking state.

[0105] In the embodiment of the present invention, the determination of the cooking state judgment condition is achieved, providing a basis for the cooking state judgment.

[0106] Step 240: Determine the cooking state based on the cooking state judgment condition and the effective power, the equivalent temperatures and the temperature differences.

[0107] In one implementation, step 240 may specifically include:

[0108] The boiling judgment result is determined according to the boiling judgment condition in the steaming judgment condition and the current equivalent temperature, the temperature difference between adjacent equivalent temperatures and the temperature difference in the first time interval, and when it is determined that the boiling judgment result is boiling, the current boiling number is updated; when it is determined that the current boiling number is greater than the boiling number threshold in the steaming judgment condition, the cooking state is determined to be steaming; and the cooking state is determined to be frying or stir-frying according to the frying judgment condition and the temperature difference between adjacent equivalent temperatures, the temperature difference in the first time interval and the temperature difference in the second time interval.

[0109] Specifically, the preset number of equivalent temperatures determined above and the multiple temperature differences determined according to each of the equivalent temperatures can be substituted into the steaming state judgment condition. If the steaming state judgment condition is met, the cooking state is determined to be steaming. Otherwise, the preset number of equivalent temperatures determined above and the multiple temperature differences determined according to each of the equivalent temperatures are substituted into the frying state judgment condition. If the frying state judgment condition is met, the cooking state is determined to be frying. Otherwise, the cooking state is determined to be stir-frying.

[0110] In the embodiment of the present invention, the determination of the steaming state is realized, so that the dry-burning judgment is performed according to the dry-burning judgment condition corresponding to the cooking state, thereby improving the accuracy of the dry-burning judgment.

[0111] Step 250: Determine a dry-boiling judgment condition according to the effective power and the cooking status.

[0112] In one implementation, step 250 may specifically include:

[0113] According to the effective power, the stir-frying dry-burning judgment parameters in the stir-frying cooking state, the steaming dry-burning judgment parameters in the steaming cooking state, and the frying dry-burning judgment parameters in the frying cooking state are determined; the stir-frying dry-burning judgment conditions are determined according to the stir-frying dry-burning judgment parameters, the steaming dry-burning judgment conditions are determined according to the steaming dry-burning judgment parameters, and the frying dry-burning judgment conditions are determined according to the frying dry-burning judgment parameters.

[0114] The dry-burning judgment parameters for determining the dry-burning judgment conditions for cooking include: dry-burning thresholds for cooking. Different firepower levels correspond to different dry-burning thresholds for cooking. Therefore, after the firepower level is determined according to the effective power, the dry-burning thresholds for cooking are determined according to the firepower level. For example, the dry-burning thresholds for cooking at level 3, level 2, and level 1 can be set to 320°C, 310°C, and 300°C, respectively. Figure 4a This is a typical curve for cooking. When the cooking state is cooking, users usually need to stir-fry several times, the stove is in a supervised state, and the dry burning judgment condition is relatively loose. Furthermore, it can be determined that the dry burning judgment condition for cooking is: if the current equivalent temperature is greater than the dry burning threshold for cooking, the previous equivalent temperature is greater than the dry burning threshold for cooking, the 20s temperature difference is greater than 0 and the temperature is rising, then it is determined that dry burning occurs in the cooking state of cooking.

[0115] The steaming and drying judgment conditions include the first steaming and drying judgment condition, the second steaming and drying judgment condition, the third steaming and drying judgment condition and the fourth steaming and drying judgment condition. The first steaming and drying judgment condition is applicable to scenarios where the liquid is not thick, for example, cooking meat, where the heating speed is fast. The second steaming and drying judgment condition is applicable to scenarios where the liquid is thick, for example, cooking porridge, where the heating speed is slow. The third steaming and drying judgment condition is applicable to scenarios where water is boiled. The fourth steaming and drying judgment condition is applicable to scenarios other than the first three scenarios.

[0116] The steaming and cooking dry-burning judgment parameters used to determine the judgment conditions for steaming and cooking dry-burning include: the lower limit of dry-burning temperature, the lower value of dry-burning temperature rise, the lower value of dry-burning temperature rise, the speed limit of temperature rise, the 40s temperature rise limit, the 20s temperature rise limit and the maximum dry-burning threshold for steaming. Different firepower levels correspond to different dry-burning thresholds for cooking. Therefore, after determining the firepower level according to the effective power, the lower limit of dry-burning temperature, the lower value of dry-burning temperature rise, the lower value of dry-burning temperature rise, the speed limit of temperature rise, the 40s temperature rise limit, the 20s temperature rise limit and the maximum dry-burning threshold for steaming are determined according to the firepower level. Specifically, the above parameters can be determined based on Table 3.

[0117] Table 3

[0118] Firepower level 3rd gear 2nd gear 1st gear Dry-boiling temperature lower limit 130 120 110 Low temperature rise during dry burning 40 30 20 Low temperature rise for dry burning 75 70 65 Temperature rise speed limit 0.3 0.2 0.1 40s temperature rise limit 7 5 3 20s temperature rise limit 3 2 1 Maximum dry boiling threshold for steaming Default 298 Default 294 Default 290

[0119] In addition, after changing the fire gear to level 3, the maximum boiling temperature is [250,280), and the maximum dry burning threshold for steaming is updated to 320; the maximum boiling temperature is [280,310), and the maximum dry burning threshold for steaming is updated to 340; the maximum boiling temperature is [310,∞), and the maximum dry burning threshold for steaming is updated to 350; after changing the fire gear to level 2, the maximum boiling temperature is [250,280), and the maximum dry burning threshold for steaming is updated to 310; the maximum boiling temperature is [ 280,310), the maximum dry burning threshold for steaming and cooking is updated to 330; the maximum boiling temperature is [310,∞), the maximum dry burning threshold for steaming and cooking is updated to 340; after changing the fire gear to gear 1, the maximum boiling temperature is [250,280), the maximum dry burning threshold for steaming and cooking is updated to 300; the maximum boiling temperature is [280,310), the maximum dry burning threshold for steaming and cooking is updated to 320; the maximum boiling temperature is [310,∞), the maximum dry burning threshold for steaming and cooking is updated to 330.

[0120] Figure 4b This is a typical curve for cooking meat, such as Figure 4b As shown, after the liquid is dried, the remaining fat turns into liquid animal oil, and the temperature rises faster. Figure 4c This is a typical curve for cooking porridge. Figure 4c As shown, the temperature rises very slowly during dry burning, which is not easy to judge. Figure 4d is a typical curve for boiling water. Furthermore, the first judgment condition for steaming and boiling dry burning can be determined as follows: if the current equivalent temperature is greater than the lower limit of the dry burning temperature, the number of boiling times is greater than 10 times, the current equivalent temperature is greater than the current boiling temperature + the lower value of the dry burning temperature rise, the previous equivalent temperature is greater than the current boiling temperature + the lower value of the dry burning temperature rise, and the temperature rise rate is increasing, then it is determined that dry burning occurs in the steaming and cooking state. The second judgment condition for steaming and boiling dry burning is determined as follows: if the current equivalent temperature is greater than the lower limit of the dry burning temperature, the number of boiling times is greater than 10 times, the current equivalent temperature is greater than the minimum boiling temperature + the dry burning temperature rise value, the previous equivalent temperature is greater than the minimum boiling temperature + the dry burning temperature rise value, and the temperature rise rate is decreasing, then it is determined that dry burning occurs in the steaming and cooking state. The third judgment condition for steaming and boiling dry burning is determined as follows: if the current equivalent temperature is greater than the lower limit of the dry burning temperature, the number of boiling times is greater than 10 times, the temperature rise rate is increasing, the temperature difference for 6 consecutive 40s is greater than the 40s temperature rise limit, and the temperature difference for 6 consecutive 20s is greater than the 20s temperature rise limit, then it is determined that dry burning occurs in the steaming and cooking state. The fourth judgment condition for steaming and boiling dry burning is determined as follows: if the current equivalent temperature is greater than the maximum steaming and boiling dry burning threshold, the previous equivalent temperature is greater than the maximum steaming and boiling dry burning threshold, and the 20s temperature difference is greater than 0, then it is determined that dry burning occurs in the steaming and cooking state.

[0121] The frying dry-burn judgment parameters used to determine the frying dry-burn judgment conditions include: frying dry-burn threshold. Different firepower levels correspond to different stir-frying dry-burn thresholds. Therefore, after determining the firepower level according to the effective power, the stir-frying dry-burn threshold is determined according to the firepower level. Among them, the stir-frying dry-burn threshold of level 3 is 280℃, the stir-frying dry-burn threshold of level 2 is 260℃, and the stir-frying dry-burn threshold of level 1 is 240℃. Figure 4e This is a typical curve for deep-frying. Deep-frying is a cooking scenario with a high risk. Generally, the appropriate deep-frying temperature is about 170-220°C. When the oil temperature exceeds 220°C when unattended, black smoke will come out of the pot, and the oil temperature will rise rapidly. Therefore, the judgment condition for deep-frying dry burning is relatively conservative. Furthermore, the judgment condition for deep-frying dry burning can be determined as follows: if the current equivalent temperature is greater than the deep-frying dry burning threshold, the previous equivalent temperature is greater than the deep-frying dry burning threshold, the 20s temperature difference is greater than 0, and the firepower level changes for more than 20s, then it is determined that deep-frying dry burning has occurred in the cooking state.

[0122] In the embodiment of the present invention, a dry-burning judgment condition that is more consistent with the current cooking state and the current firepower level is determined according to the cooking state and the firepower level corresponding to the effective power.

[0123] Step 260: Based on the equivalent temperatures, the temperature differences, the temperature rise rate changes, and the dry-burning judgment conditions, the cookware is judged to be dry-burning, and a dry-burning judgment result is obtained.

[0124] In one implementation, step 260 may specifically include:

[0125] When the cooking state is stir-frying, the equivalent temperatures, the temperature differences and the changes in the temperature rise rate are substituted into the stir-frying dry-burning judgment condition to determine the dry-burning judgment result; when the cooking state is steaming, the equivalent temperatures, the temperature differences and the changes in the temperature rise rate are substituted into the steaming dry-burning judgment condition to determine the dry-burning judgment result; when the cooking state is frying, the equivalent temperatures, the temperature differences and the changes in the temperature rise rate are substituted into the frying dry-burning judgment condition to determine the dry-burning judgment result.

[0126] Specifically, when the cooking state is stir-frying, each equivalent temperature, each temperature difference and the change of temperature rise rate are substituted into the dry burning judgment condition of stir-frying. If the current equivalent temperature is greater than the dry burning threshold of stir-frying, the previous equivalent temperature is greater than the dry burning threshold of stir-frying, the 20s temperature difference is greater than 0 and the temperature is in a rising state, it is determined that the pot is dry-burned in the stir-frying cooking state; when the cooking state is steaming, each equivalent temperature, each temperature difference and the change of temperature rise rate are substituted into the first steaming and boiling dry burning judgment condition, the second steaming and boiling dry burning judgment condition, the third steaming and boiling dry burning judgment condition, and the fourth steaming and boiling dry burning judgment condition in sequence. If the first steaming and boiling dry burning judgment condition, the second steaming and boiling dry burning judgment condition, the third steaming and boiling dry burning judgment condition or the fourth steaming and boiling dry burning judgment condition is met, it is determined that the pot is dry-burned in the steaming cooking state; when the cooking state is frying, each equivalent temperature, each temperature difference and the change of temperature rise rate are substituted into the frying dry burning judgment condition. If the frying dry burning judgment condition is met, it is determined that the pot is dry-burned in the frying cooking state.

[0127] In actual application, after determining that the pot is dry-burned, the stove knob can be controlled to turn off and the alarm device can be controlled to sound an alarm.

[0128] In the embodiment of the present invention, a dry-burning judgment is performed based on the dry-burning judgment conditions corresponding to the current cooking state and the current fire power level, thereby achieving a more accurate dry-burning judgment and obtaining a more accurate dry-burning judgment result.

[0129] The dry-burning judgment method provided by an embodiment of the present invention includes: determining the effective power of the stove according to the rotation angle of the stove knob; determining that the stove state has changed when it is determined that the stove state is changed from off to on or the fire power level of the stove has changed; determining a preset number of equivalent temperatures according to the temperature of the pot, and determining multiple temperature differences and temperature rise rate changes according to each of the equivalent temperatures; determining a cooking state based on the effective power and each of the equivalent temperatures and each of the temperature differences; determining a dry-burning judgment condition of the pot according to the cooking state and the effective power; and performing a dry-burning judgment on the pot based on each of the equivalent temperatures, each of the temperature differences and the temperature rise rate changes and the dry-burning judgment condition to obtain a dry-burning judgment result. The above technical scheme determines the rotation angle of the stove knob when the stove is running, and then determines the effective power of the stove based on the rotation angle, so as to quickly and conveniently determine the relatively accurate effective power of the stove, determine the preset number of equivalent temperatures required for steaming state judgment and dry burning judgment, and then determine the multiple temperature differences of the pot temperature within the time period corresponding to the preset number of equivalent temperatures and the change in the temperature rise rate of the pot temperature during this period through the determined preset number of equivalent temperatures, and then determine the cooking state judgment condition based on the firepower level corresponding to the effective power, and then determine the cooking state based on the cooking state judgment condition and each equivalent temperature and each temperature difference, and then determine the dry burning judgment condition based on the firepower level corresponding to the effective power and the cooking state, and perform dry burning judgment based on the dry burning judgment condition corresponding to the current cooking state and the current firepower level, so as to achieve more accurate dry burning judgment, obtain more accurate dry burning judgment results, and improve user experience.

[0130] By setting different dry-burning thresholds for stir-frying and deep-frying, the health and safety requirements of deep-frying and the requirement of fewer false alarms for stir-frying are taken into account, thus improving the user's cooking experience. By setting multiple dry-burning judgment conditions for steaming and boiling, the different viscosity levels of the soup during steaming and boiling are covered, so that more timely judgments can be made. In addition, by setting the lower limit of the dry-burning temperature under different firepower, false alarms can be reduced, further improving the user experience.

[0131] Figure 5 This is a schematic diagram of a dry-burning judgment device provided by an embodiment of the present invention, which can be applied to situations where rapid and accurate dry-burning judgment of a cooker is required. The device can be implemented by software and / or hardware and is generally integrated in an electronic device, such as a cooker.

[0132] like Figure 5 As shown, the device comprises:

[0133] An efficiency determination module 510, configured to determine the effective power of the stove according to the rotation angle of the stove knob;

[0134] An execution module 520 is used to determine a preset number of equivalent temperatures according to the temperature of the cookware, and determine a plurality of temperature differences and temperature rise rate change conditions according to each of the equivalent temperatures;

[0135] a state determination module 530, configured to determine a cooking state determination condition according to the effective power, and determine a cooking state based on the cooking state determination condition and the effective power, each of the equivalent temperatures and each of the temperature differences;

[0136] The judgment module 540 is used to determine the dry burning judgment condition according to the effective power and the cooking state, and to perform a dry burning judgment on the cookware based on the equivalent temperatures, the temperature differences, the temperature rise rate changes and the dry burning judgment condition to obtain a dry burning judgment result.

[0137] The dry-burn judgment device provided in the present embodiment determines the effective power of the stove according to the rotation angle of the stove knob; determines a preset number of equivalent temperatures according to the temperature of the pot, and determines multiple temperature differences and temperature rise rate changes according to each of the equivalent temperatures; determines a cooking state judgment condition according to the effective power, and determines the cooking state based on the cooking state judgment condition and the effective power, each of the equivalent temperatures and each of the temperature differences; determines a dry-burn judgment condition according to the effective power and the cooking state, and performs a dry-burn judgment on the pot based on each of the equivalent temperatures, each of the temperature differences and the temperature rise rate changes and the dry-burn judgment condition to obtain a dry-burn judgment result. The above technical scheme determines the rotation angle of the stove knob when the stove is running, and then determines the effective power of the stove based on the rotation angle, so as to quickly and conveniently determine the relatively accurate effective power of the stove, determine the preset number of equivalent temperatures required for steaming state judgment and dry burning judgment, and then determine the multiple temperature differences of the pot temperature within the time period corresponding to the preset number of equivalent temperatures and the change in the temperature rise rate of the pot temperature during this period through the determined preset number of equivalent temperatures, and then determine the cooking state judgment condition based on the firepower level corresponding to the effective power, and then determine the cooking state based on the cooking state judgment condition and each equivalent temperature and each temperature difference, and then determine the dry burning judgment condition based on the firepower level corresponding to the effective power and the cooking state, and perform dry burning judgment based on the dry burning judgment condition corresponding to the current cooking state and the current firepower level, so as to achieve more accurate dry burning judgment, obtain more accurate dry burning judgment results, and improve user experience.

[0138] Based on the above embodiment, the efficiency determination module 510 is specifically used for:

[0139] The effective power is determined in a relationship diagram between angle and power according to the rotation angle.

[0140] Based on the above embodiment, the execution module 520 is specifically used for:

[0141] The preset number of equivalent temperatures are determined based on the truncated mean value of the pot temperature within the preset number of preset time periods; the temperature difference between adjacent equivalent temperatures, the temperature difference of the first time interval and the temperature difference of the second time interval are determined based on each of the equivalent temperatures; the temperature rise change is determined based on the temperature difference of the first time interval corresponding to the current moment, the temperature difference of the first time interval corresponding to the first time interval before the current moment, and the temperature difference of the first time interval corresponding to the second time interval before the current moment.

[0142] Based on the above embodiment, the state determination module 530 is specifically used for:

[0143] A cooking state judgment parameter is determined according to the power range to which the effective power belongs, and the cooking state judgment condition is determined according to the cooking state judgment parameter, wherein the cooking state judgment condition includes a steaming judgment condition and a frying judgment condition; a boiling judgment result is determined according to the boiling judgment condition in the steaming judgment condition and the current equivalent temperature, the temperature difference between adjacent equivalent temperatures and the temperature difference in a first time interval, and when it is determined that the boiling judgment result is boiling, the current boiling number is updated; when it is determined that the current boiling number is greater than the boiling number threshold in the steaming judgment condition, the cooking state is determined to be steaming; and the cooking state is determined to be frying or stir-frying according to the frying judgment condition and the temperature difference between adjacent equivalent temperatures, the temperature difference in the first time interval and the temperature difference in the second time interval.

[0144] Based on the above embodiment, the determination module 540 is specifically used for:

[0145] When the cooking state is stir-frying, the equivalent temperatures, the temperature differences and the changes in the temperature rise rate are substituted into the stir-frying dry-burning judgment condition to determine the dry-burning judgment result; when the cooking state is steaming, the equivalent temperatures, the temperature differences and the changes in the temperature rise rate are substituted into the steaming dry-burning judgment condition to determine the dry-burning judgment result; when the cooking state is frying, the equivalent temperatures, the temperature differences and the changes in the temperature rise rate are substituted into the frying dry-burning judgment condition to determine the dry-burning judgment result.

[0146] The dry-burning judgment device provided in the embodiment of the present invention can execute the dry-burning judgment method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of executing the dry-burning judgment method.

[0147] It is worth noting that in the above-mentioned embodiment of the dry-burn judgment device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0148] Figure 6 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. Figure 6 A block diagram of an exemplary electronic device 6 suitable for implementing embodiments of the present invention is shown. Figure 6 The electronic device 6 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0149] like Figure 6 As shown, the electronic device 6 is in the form of a general purpose computing electronic device. The components of the electronic device 6 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 connecting different system components (including the system memory 28 and the processing unit 16).

[0150] Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor or a local bus using any of a variety of bus architectures. By way of example, these architectures include, but are not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MAC) bus, an Enhanced ISA bus, a Video Electronics Standards Association (VESA) local bus, and a Peripheral Component Interconnect (PCI) bus.

[0151] The electronic device 6 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the electronic device 6, including volatile and non-volatile media, removable and non-removable media.

[0152] The system memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and / or cache memory 32. The electronic device 6 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, the storage system 34 may be used to read and write non-removable, non-volatile magnetic media ( Figure 6 not shown, usually called a "hard drive"). Although Figure 6 Not shown in the figure, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a CD-ROM, a DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to the bus 18 via one or more data medium interfaces. The system memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to perform the functions of the various embodiments of the present invention.

[0153] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in system memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment. Program modules 42 generally perform the functions and / or methods of the embodiments described herein.

[0154] The electronic device 6 may also communicate with one or more external devices 14 (e.g., keyboards, pointing devices, displays 24, etc.), one or more devices that enable a user to interact with the electronic device 6, and / or any device that enables the electronic device 6 to communicate with one or more other computing devices (e.g., network cards, modems, etc.). Such communication may be performed via an input / output (I / O) interface 22. Furthermore, the electronic device 6 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 20. Figure 6 As shown, the network adapter 20 communicates with other modules of the electronic device 6 via the bus 18. It should be understood that although Figure 6 Not shown, other hardware and / or software modules may be used in conjunction with the electronic device 6, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0155] The processing unit 16 executes various functional applications and page displays by running the program stored in the system memory 28, for example, implementing the dry burning judgment method provided in the embodiment of the present invention, which includes:

[0156] determining the effective power of the cooker according to the rotation angle of the cooker knob;

[0157] After determining that the state of the cooker has changed, determining a preset number of equivalent temperatures according to the temperature of the cooker, and determining a plurality of temperature differences and temperature rise rate changes according to each of the equivalent temperatures;

[0158] determining a cooking state based on the effective power and each of the equivalent temperatures and each of the temperature differences;

[0159] After determining the dry-burning judgment condition of the cookware according to the cooking state and the effective power, the cookware is judged to be dry-burning based on the equivalent temperatures, the temperature differences, the changes in the temperature rise rate and the dry-burning judgment condition to obtain a dry-burning judgment result.

[0160] Of course, those skilled in the art can understand that the processor can also implement the technical solution of the dry burning judgment method provided by any embodiment of the present invention.

[0161] An embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, for example, a dry burning determination method provided in an embodiment of the present invention is implemented. The method includes:

[0162] determining the effective power of the cooker according to the rotation angle of the cooker knob;

[0163] After determining that the state of the cooker has changed, determining a preset number of equivalent temperatures according to the temperature of the cooker, and determining a plurality of temperature differences and temperature rise rate changes according to each of the equivalent temperatures;

[0164] determining a cooking state based on the effective power and each of the equivalent temperatures and each of the temperature differences;

[0165] After determining the dry-burning judgment condition of the cookware according to the cooking state and the effective power, the cookware is judged to be dry-burning based on the equivalent temperatures, the temperature differences, the changes in the temperature rise rate and the dry-burning judgment condition to obtain a dry-burning judgment result.

[0166] The computer storage medium of the embodiment of the present invention can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0167] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0168] The program code embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0169] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0170] It should be understood by those skilled in the art that the modules or steps of the present invention described above can be implemented by a general-purpose computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, optionally, they can be implemented by a program code executable by a computer device, so that they can be stored in a storage device and executed by the computing device, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0171] In addition, the acquisition, storage, use, and processing of data in the technical solution of the present invention are in compliance with the relevant provisions of national laws and regulations.

[0172] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A dry burning judgment method, characterized in that: include: determining the effective power of the cooker according to the rotation angle of the cooker knob; Determine a preset number of equivalent temperatures according to the temperature of the cookware, and determine a plurality of temperature differences and temperature rise rate changes according to each of the equivalent temperatures; determining a cooking state judgment condition according to the effective power, and determining a cooking state based on the cooking state judgment condition and the effective power, each of the equivalent temperatures and each of the temperature differences; A dry burning judgment condition is determined according to the effective power and the cooking state, and a dry burning judgment is performed on the cookware based on the equivalent temperatures, the temperature differences, the temperature rise rate changes, and the dry burning judgment condition to obtain a dry burning judgment result.

2. The dry burning judgment method according to claim 1, characterized in that: Determining the effective power of the cooker according to the rotation angle of the cooker knob includes: The effective power is determined in a relationship diagram between angle and power according to the rotation angle.

3. The dry burning judgment method according to claim 1, characterized in that: Determine a preset number of equivalent temperatures according to the temperature of the cookware, and determine a plurality of temperature differences and temperature rise rate changes according to each of the equivalent temperatures, including: Determining the preset number of equivalent temperatures according to the truncated mean values ​​of the pot temperatures within the preset number of preset time periods; Determine the temperature difference between adjacent equivalent temperatures, the temperature difference in the first time interval, and the temperature difference in the second time interval according to each of the equivalent temperatures; The temperature rise change is determined according to the temperature difference of the first time interval corresponding to the current moment, the temperature difference of the first time interval corresponding to the first time interval before the current moment, and the temperature difference of the first time interval corresponding to the second time interval before the current moment.

4. The dry burning judgment method according to claim 1, characterized in that: Determining a cooking state judgment condition according to the effective power includes: A cooking state judgment parameter is determined according to a power range to which the effective power belongs, and the cooking state judgment condition is determined according to the cooking state judgment parameter, wherein the cooking state judgment condition includes a steaming judgment condition and a frying judgment condition.

5. The dry burning judgment method according to claim 4, characterized in that: Determining the cooking state based on the cooking state judgment condition and the effective power, each of the equivalent temperatures and each of the temperature differences includes: Determine a boiling judgment result according to the boiling judgment condition in the steaming judgment condition, the current equivalent temperature, the temperature difference between adjacent equivalent temperatures, and the temperature difference in the first time interval, and when it is determined that the boiling judgment result is boiling, update the current boiling number; In the case where it is determined that the current boiling number is greater than the boiling number threshold in the boiling judgment condition, determining that the cooking state is boiling; The cooking state is determined to be frying or stir-frying according to the frying judgment condition and the temperature difference between adjacent equivalent temperatures, the temperature difference in the first time interval, and the temperature difference in the second time interval.

6. The dry burning judgment method according to claim 1, characterized in that: Determining a dry-burning judgment condition according to the effective power and the cooking state includes: Determine, according to the effective power, a stir-fry dry-burn judgment parameter in a stir-fry cooking state, a steaming dry-burn judgment parameter in a steaming cooking state, and a frying dry-burn judgment parameter in a frying cooking state; The stir-frying dry-burning judgment condition is determined according to the stir-frying dry-burning judgment parameter, the steaming dry-burning judgment condition is determined according to the steaming dry-burning judgment parameter, and the frying dry-burning judgment condition is determined according to the frying dry-burning judgment parameter.

7. The dry burning judgment method according to claim 6, characterized in that: Based on the equivalent temperatures, the temperature differences, the temperature rise rate changes, and the dry-burning judgment conditions, the cookware is judged to be dry-burning, and a dry-burning judgment result is obtained, including: When the cooking state is cooking, the equivalent temperatures, the temperature differences and the temperature rise rate changes are substituted into the cooking dry-burning judgment condition to determine the dry-burning judgment result; When the cooking state is steaming, the equivalent temperatures, the temperature differences and the temperature rise rate changes are substituted into the steaming and dry-burning judgment condition to determine the dry-burning judgment result; When the cooking state is frying, the equivalent temperatures, the temperature differences and the temperature rise rate changes are substituted into the frying dry-frying judgment condition to determine the dry-frying judgment result.

8. A dry burning judgment device, characterized in that: include: an efficiency determination module, used to determine the effective power of the cooker according to the rotation angle of the cooker knob; An execution module, used to determine a preset number of equivalent temperatures according to the temperature of the cookware, and determine a plurality of temperature differences and temperature rise rate change conditions according to each of the equivalent temperatures; a state determination module, configured to determine a cooking state determination condition according to the effective power, and determine a cooking state based on the cooking state determination condition, the effective power, each of the equivalent temperatures, and each of the temperature differences; The judgment module is used to determine the dry burning judgment condition according to the effective power and the cooking state, and to judge the dry burning of the cookware based on the equivalent temperatures, the temperature differences, the temperature rise rate changes and the dry burning judgment condition to obtain a dry burning judgment result.

9. An electronic device, characterized in that: The device comprises: at least one processor; and a memory communicatively coupled to the at least one processor; The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the dry burning judgment method as described in any one of claims 1 to 7.

10. A storage medium containing computer executable instructions, characterized in that: When the computer executable instructions are executed by a computer processor, they are used to execute the dry burning determination method according to any one of claims 1 to 7.

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