Control method, system, range hood and storage medium for range hood linked with stove and smoke stove

Abstract

The present application discloses a control method, system, range hood, and storage medium for a range hood linked to a range hood. The range hood includes a temperature sensor, a camera, and is communicatively connected to the range hood. The method comprises: determining the number of pots based on a pot image captured by the camera; obtaining firepower information reported in real time by the range hood; if the pot image includes multiple pots, identifying a pot in a working state as a target pot based on the firepower information; obtaining the temperature above the target pot measured in real time by the temperature sensor to obtain the ambient temperature of the target pot; determining the pot size of the target pot and, based on the pot size of the target pot, determining a smoke volume influencing strategy for the target pot; based on the smoke volume influencing strategy for the target pot, obtaining a predicted smoke volume for the target pot based on the pot temperature, ambient temperature, and firepower information of the target pot; and determining operating parameters of the range hood fan based on the predicted smoke volume, and controlling the range hood fan to operate according to the operating parameters.

Description

Technical Field

[0001] The present application relates to the technical field of range hoods, and in particular to a control method and system for a range hood with a range hood linked to a stove and a range hood, and a storage medium. Background Art

[0002] If the fumes produced during cooking in the kitchen are not discharged in time, they will have a great impact on the human body. Traditional range hoods use buttons, which are extremely inconvenient to operate, and there will be hygiene problems when people manually operate the buttons. Existing intelligent control methods for range hoods include voice recognition, gesture recognition, infrared recognition, etc., which can free your hands and achieve "contactless control" of the range hood. However, voice and gesture recognition still have problems such as interference, misjudgment, and inconvenient operation. The infrared automatic smoke control systems currently available on the market rely solely on a single target energy change, which is difficult to cover all application scenarios and still has a high probability of misjudgment. For example, when using multiple pots for cooking, if a single pot temperature is used to calculate the smoke volume, the calculation accuracy of the smoke volume will be affected, and the range hood fan parameters obtained based on the smoke volume will be inaccurate. Summary of the Invention

[0003] The embodiments of the present application provide a control method, system, range hood and computer-readable storage medium for a range hood linked to a range hood and stove. The method can determine the number of pots by capturing images of the pot body through a camera, and then determine the temperature inside the pot, firepower information and different influencing factors of the ambient temperature based on the size of the pot body of the target pot, thereby achieving more accurate prediction of the amount of smoke produced when cooking with multiple pots, and automatically adjusting the wind speed of the range hood fan according to the predicted amount of smoke.

[0004] In a first aspect, an embodiment of the present application provides a method for controlling a range hood that is linked to a range cooker. The range hood includes a temperature sensor and a camera, and is communicatively connected to the cooker. The method includes:

[0005] determining the number of pots under the range hood based on the pot body image captured by the camera;

[0006] Obtaining the firepower information reported by the stove in real time;

[0007] If there are multiple pots under the range hood according to the pot body image, a pot in a working state is determined as a target pot according to the fire power information;

[0008] Obtaining the temperature above the target cookware measured in real time by the temperature sensor to obtain the ambient temperature of the target cookware;

[0009] Determining the pot size of the target cookware, and determining a smoke volume influencing strategy for the target cookware based on the pot size;

[0010] Based on the smoke volume influencing strategy of the target cookware, the predicted smoke volume of the target cookware is obtained according to the target cookware internal temperature, ambient temperature and fire power information measured in real time by the temperature sensor;

[0011] The operating parameters of the range hood fan are determined according to the predicted amount of smoke produced by the target cookware, and the operation of the range hood fan is controlled according to the operating parameters.

[0012] In one embodiment, determining the operating parameters of the range hood fan according to the predicted smoke volume of the target cookware includes:

[0013] When the number of the target cookware is one, determining the operating parameters of the range hood fan according to the predicted smoke volume of the one target cookware;

[0014] When there are multiple target cookware, the operating parameters of the range hood fan are determined according to the maximum value of the predicted smoke volumes of the multiple target cookware.

[0015] When cooking with multiple pots, there is a difference in the amount of smoke predicted for the two pots. By determining the operating parameters of the range hood fan based on the maximum value of the smoke volume predicted for the target pot, the smoke can be quickly absorbed to improve the user experience.

[0016] In one embodiment, determining the pot size of the target cook includes: determining a first pot size of the target cook based on the firepower information and ambient temperature corresponding to the target cook; determining a second pot size of the target cook based on the analyzed pot image; when the first pot size matches the second pot size, using the first pot size or the second pot size as the pot size of the target cook; when the first pot size does not match the second pot size, using the first pot size as the pot size of the target cook.

[0017] The size of the pot can be determined based on the pot image, the ambient temperature of the pot, and the firepower information, so that the size of the pot can be determined more accurately, and the amount of smoke can be predicted more accurately based on the size of the pot.

[0018] In one embodiment, determining the first pot size of the target cookware based on the heat power information and the ambient temperature corresponding to the target cookware includes: obtaining a measured temperature range corresponding to the heat power information, where the measured temperature range is determined by the pot size; and determining the pot size of the cookware based on the ambient temperature and the measured temperature range. The same pot size corresponds to different measured temperature ranges under different heat power information, and different pot sizes correspond to different measured temperature ranges under the same heat power information. Based on the measured temperature range corresponding to the heat power information and the heat power information, the pot size can be intelligently determined, and a smoke volume influencing strategy can be determined based on the pot size.

[0019] In one embodiment, determining the first pot size of the target cookware based on the heat information and ambient temperature corresponding to the target cookware includes: obtaining a preset record table that records a mapping relationship between ambient temperature and pot size under different heat information; and determining the pot size of the cookware by querying the preset record table based on the heat information and ambient temperature. Querying the preset record table based on the ambient temperature and heat information allows for more rapid and convenient determination of the pot size, thereby determining a smoke volume influencing strategy based on the pot size.

[0020] In one embodiment, the method includes: the smoke volume influencing strategy includes: a smoke volume influencing factor and an influencing factor corresponding to the smoke volume influencing factor; the smoke volume influencing factor includes pot temperature, ambient temperature, and firepower information; the influencing factor includes pot temperature weight, ambient temperature weight, and firepower weight;

[0021] Based on the smoke volume influencing strategy of the target cookware, the predicted smoke volume of the target cookware is obtained according to the target cookware internal temperature, ambient temperature and fire power information measured in real time by the temperature sensor;

[0022] The formula is represented as:

[0023] P=P1×W1+P2×W2+P3×W3

[0024] In the formula, W1 is the weight of the target cookware's internal temperature, W2 is the weight of the target cookware's ambient temperature, and W3 is the weight of the target cookware's firepower information; P1 is the amount of smoke predicted based on the target cookware's internal temperature, P2 is the amount of smoke predicted based on the target cookware's ambient temperature, and P3 is the amount of smoke predicted based on the target cookware's firepower information.

[0025] The predicted smoke volume is calculated based on the target pot's internal temperature, ambient temperature, firepower information, and corresponding weights. This avoids predicting smoke volume based on a single pot temperature, as different pot sizes can introduce errors in heat calculations. Furthermore, the system takes into account the simultaneous cooking of multiple pots, allowing for a more intelligent determination of the range hood fan's operating parameters.

[0026] In one embodiment, based on the smoke volume influencing strategy of the target cook, obtaining the predicted smoke volume of the target cook according to the target cooker's pot temperature, ambient temperature and firepower information includes: obtaining the temperature above the cookware measured by the temperature sensor when the target cookware is not in a working state as the first ambient temperature of the target cookware; obtaining the temperature above the cookware measured by the temperature sensor when the target cookware is in a working state as the second ambient temperature of the target cookware; obtaining the ambient temperature difference of the target cook according to the difference between the first ambient temperature and the second ambient temperature of the target cookware; obtaining the pot temperature difference by obtaining the pot temperature difference of the target cookware within a preset time; based on the smoke volume influencing strategy of the target cook, determining the predicted smoke volume of the target cook according to the ambient temperature difference, pot temperature difference and firepower information of the target cook.

[0027] The predicted smoke volume is calculated based on the target pot's internal temperature difference, ambient temperature difference, firepower information, and corresponding weights, which can more accurately reflect the user's cooking situation using multiple pots, and thus more accurately calculate the predicted smoke volume.

[0028] In one embodiment, determining operating parameters of a range hood fan based on the predicted smoke volume of the target cookware includes: determining a fan gear and a gear change rate of the range hood fan based on the predicted smoke volume of the target cookware, thereby obtaining the operating parameters of the range hood fan. The fan gear and gear change rate of the range hood fan are intelligently adjusted based on the predicted smoke volume, thereby achieving a fan gear and gear change rate that meet the needs of various application scenarios, thereby improving the user experience of the range hood.

[0029] In a second aspect, an embodiment of the present application further provides a control system for a range hood linked to a range cooker, wherein the range hood includes a temperature sensor and a camera, and is communicatively connected to the cooker; the range hood also includes a range hood main unit and a range hood fan;

[0030] The stove is used to report fire power information to the range hood in real time;

[0031] The range hood host is used for:

[0032] determining the number of pots under the range hood based on the pot body image captured by the camera;

[0033] Obtaining the firepower information reported by the stove in real time;

[0034] If there are multiple pots under the range hood according to the pot body image, a pot in a working state is determined as a target pot according to the fire power information;

[0035] Obtaining the temperature above the target cookware measured in real time by the temperature sensor to obtain the ambient temperature of the target cookware;

[0036] Determining the pot size of the target cookware, and determining a smoke volume influencing strategy for the target cookware based on the pot size;

[0037] Based on the smoke volume influencing strategy of the target cookware, the predicted smoke volume of the target cookware is obtained according to the target cookware internal temperature, ambient temperature and fire power information measured in real time by the temperature sensor;

[0038] The operating parameters of the range hood fan are determined according to the predicted amount of smoke produced by the target cookware, and the operation of the range hood fan is controlled according to the operating parameters.

[0039] In a third aspect, the present application also provides a range hood, comprising:

[0040] A memory and a processor, wherein the memory stores a computer program, and the processor executes any range hood control method provided in the embodiments of the present application when calling the computer program in the memory.

[0041] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, which is used to store a computer program. The computer program is loaded by a processor to execute any range hood control method provided in the embodiment of the present application.

[0042] Provided are a control method, system, range hood, and computer-readable storage medium for a range hood linked to a range hood and stove. First, a camera is used to determine the number of pots, and the working status of the pots is determined based on the stove's firepower information. The pots in the working state are then used as target pots. The pot size of the target pot is then determined based on the target pot's ambient temperature and firepower information, as well as the pot image captured by the camera. Different influencing factors are assigned to the pot temperature, ambient temperature, and firepower information in calculating the smoke volume, depending on the pot size of the target pot. Secondly, the smoke volume is calculated based on the target pot's pot temperature, firepower information, ambient temperature, and the different influencing factors, more accurately reflecting the amount of smoke produced when a user is cooking with multiple pots. This allows for more accurate prediction of smoke volume when cooking with multiple pots, and allows for intelligent adjustment of the range hood fan parameters based on the predicted smoke volume for the target pot. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 This is a schematic diagram of the smoke and stove linkage provided by an embodiment of the present application;

[0045] Figure 2 is a schematic diagram of a range hood provided in one embodiment of the present application;

[0046] Figure 3 1 is a flow chart of a method for controlling a range hood according to an embodiment of the present application;

[0047] Figure 4 This is a schematic diagram of the steps of the range hood control method provided in an embodiment of the present application;

[0048] Figure 5 is a schematic block diagram of a control system of a range hood provided in an embodiment of the present application;

[0049] Figure 6 It is a structural diagram of the range hood provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0051] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, combined, or partially merged, so the actual execution order may vary depending on the actual situation.

[0052] The embodiments of the present application provide a range hood control method, system, range hood, and computer-readable storage medium. The range hood control method can be applied to a range hood with a smoke / stove linkage, which will be described below.

[0053] See also Figure 1-2 , Figure 1 This is a system diagram of the smoke and stove linkage of this application. Among them, the range hood and stove are connected in communication. Figure 2The embodiment of the present application provides a range hood 10, which includes a housing 101, a temperature sensor 102, a camera, and a range hood main unit and fan within the range hood. The temperature sensor 102 is mounted on the housing 101. The temperature sensor 102 detects the temperature inside the cookware below the range hood and the ambient temperature above the cookware. The range hood main unit determines the number of cookware based on the cookware images captured by the camera. When multiple cookware are located below the range hood, the main unit identifies the cookware in operation as the target cookware based on the cookware's heat output. The main unit further determines the size of the target cookware and, based on the target cookware's heat output, weights the cookware's internal temperature, ambient temperature, and heat output information. The main unit then uses the target cookware's internal temperature, ambient temperature, and heat output information measured in real time by the temperature sensor and uses different weighting factors to determine the predicted smoke volume for the target cookware. Finally, the operating parameters of the range hood fan are determined based on the predicted smoke volume for the target cookware, and the range hood fan operates according to the determined operating parameters.

[0054] See also Figure 3 、 Figure 4 , Figure 3 This is a flow chart of a method for controlling a range hood provided in one embodiment of the present application. Figure 4 The control method of the range hood may include steps S101 to S107, and the specific steps may be as follows:

[0055] S101: Determine the number of cookware below the range hood based on a pot body image captured by a camera.

[0056] Specifically, the camera sends the captured image of the pot to the range hood host, or the range hood host can actively obtain the pot image. The range hood host analyzes the captured pot image and determines the number of pots based on the image analysis results.

[0057] In some embodiments, the camera is activated to capture the pot image only when the real-time firepower information reported by the stove is obtained, thereby avoiding the camera capturing the pot image when the stove is not working, thereby saving energy consumption.

[0058] By using a camera to capture images of the pots, information about the pots under the range hood can be obtained, which can quickly and easily determine the number of pots, thereby achieving more accurate prediction of smoke volume when cooking with multiple pots.

[0059] S102: Obtaining the firepower information reported by the stove in real time.

[0060] Specifically, the stove may actively report the firepower information to the range hood, or the range hood may actively obtain the firepower information of the stove.

[0061] In some embodiments, the range hood-linked cooker includes a firepower detection module, which is used to detect the firepower of the first burner and the second burner on the cooker in real time to obtain firepower information.

[0062] In some embodiments, the stove further includes a Bluetooth communication module, and the stove sends the fire power information to the range hood via the Bluetooth communication module.

[0063] S103: If there are multiple cookware under the range hood according to the pot body image, determine a cookware in working state as a target cookware according to the firepower information.

[0064] Specifically, based on the number of pots obtained from the pot image, when there are multiple pots under the range hood, it is necessary to further determine whether the pots are in working condition. Pots in working condition indicate that they are being used for cooking, and pots that are not in working condition indicate that they are only temporarily placed on the stove. Only pots in working condition need to consider the amount of smoke generated. Therefore, based on the firepower information of the stove, the pots in working condition are determined as target pots, and the amount of smoke is further predicted based on the target pots.

[0065] For example, according to the pot image, there are two pots under the range hood. When only the pot on the left is in working condition, the pot on the left is the target pot; when both the left and right pots are in working condition, both the left and right pots are the target pots.

[0066] S104: Acquire the temperature above the target cookware measured in real time by the temperature sensor to obtain the ambient temperature of the target cookware.

[0067] Specifically, a temperature sensor is pre-installed on the range hood and is in communication with the range hood main unit. This temperature sensor can detect the temperature inside the pot below the range hood and the ambient temperature above the pot in real time. The ambient and pot temperatures are then transmitted to the range hood main unit in real time.

[0068] It should be noted that the range hood host can also actively obtain the data of the pot temperature and the ambient temperature measured by the temperature sensor.

[0069] In some embodiments, the temperature sensor is an infrared thermopile sensor, which can accurately and quickly detect the temperature inside the pot and the ambient temperature below the range hood.

[0070] In some embodiments, there may be multiple temperature sensors, each of which is used to detect the internal temperature and ambient temperature of a different cookware.

[0071] S105: Determine the pot size of the target cookware, and determine a smoke volume influencing strategy for the target cookware according to the pot size.

[0072] Specifically, a first pot size of the target cook is first determined based on the fire power information and ambient temperature corresponding to the target cook; a second pot size of the target cook is determined based on the analyzed pot image; when the first pot size matches the second pot size, the first pot size or the second pot size is used as the pot size of the target cook; when the first pot size does not match the second pot size, the first pot size is used as the pot size of the target cook.

[0073] Since the pot size determined based on the pot image may have errors, for example, for a pot with a small bottom and a large lid, the actual pot size should be determined based on the pot bottom, while the pot size determined based on the ambient temperature and firepower information of the target pot is determined based on the size of the pot bottom, the pot sizes determined by the two methods are calibrated. If the error between the two is less than a preset threshold, the pot size determined by either method can be selected as the target pot size; if the error between the two is greater than a preset threshold, the first pot size determined based on the ambient temperature and firepower information of the target pot is used as the target pot size.

[0074] Before determining the first pot size of the target cookware based on the ambient temperature and firepower information, it is necessary to first obtain the measured temperature range corresponding to the firepower information, which is determined by the pot size. Based on the ambient temperature and the measured temperature range, the pot size of the cookware under the range hood is determined. It should be noted that the same pot size corresponds to different measured temperature ranges under different firepower information, and different pot sizes correspond to different measured temperature ranges under the same firepower information. It should be noted that the measured temperature range corresponding to the firepower information is pre-determined through experiments, and is the ambient temperature value corresponding to cookware of different pot sizes at a certain firepower.

[0075] Furthermore, the mapping relationship between the ambient temperature and the pot size under different pre-measured firepower information can be formed into a preset record table; when determining the pot size based on the ambient temperature and firepower information, the pot size of the pot under the range hood is determined by querying the preset record table based on the firepower information and ambient temperature.

[0076] For example, when the pot is too small, the fire will flow upward along the edge of the pot, causing the temperature below the range hood panel to be too high. Under the same fire power, the ambient temperature collected by the temperature sensor will be higher than the ambient temperature when the pot is large.

[0077] After determining the pot size of the target cook, the smoke volume influencing strategy of the target cook is further determined based on the pot size of the target cook. Different pot sizes correspond to different smoke volume influencing strategies. Different smoke volume influencing strategies include smoke volume influencing factors and influencing factors corresponding to the smoke volume influencing factors. The smoke volume influencing factors include: pot temperature, ambient temperature and firepower information. The influencing factors include: pot temperature weight, ambient temperature weight and firepower weight.

[0078] For example, when cooking with a small pot, due to the small bottom of the pot, the collected temperature inside the pot will be higher than the actual temperature inside the pot because the pot body is very small and the target surface covers areas with higher temperatures such as the burner and the edge of the pot body. In this case, it is necessary to appropriately reduce the weight of the pot temperature when calculating the amount of smoke, so as to obtain a more accurate smoke calculation result.

[0079] In some embodiments, when using a small pot for cooking, the weight value corresponding to the temperature inside the pot is X1, the weight corresponding to the ambient temperature is X2, and the weight corresponding to the stove firepower is X3. The specific values ​​of X1, X2, and X3 can be determined based on experiments.

[0080] In some embodiments, when using a medium pot for cooking, the weight value corresponding to the temperature inside the pot is Y1, the weight corresponding to the ambient temperature is Y2, and the weight corresponding to the stove firepower is Y3. The specific values ​​of Y1, Y2, and Y3 can be determined based on experiments.

[0081] In some embodiments, when using a large pot for cooking, the weight value corresponding to the temperature inside the pot is Z1, the weight corresponding to the ambient temperature is Z2, and the weight corresponding to the stove firepower is Z3. The specific values ​​of Z1, Z2, and Z3 can be determined based on experiments.

[0082] In some embodiments, when the weight value corresponding to the temperature in the pot is W1, the weight corresponding to the ambient temperature is W2, and the weight corresponding to the stove firepower is W3, the weight range is:

[0083] W1+W2+W3=100%

[0084] For example, when two pots, one large and one small, are being cooked at the same time, the weights obtained according to the size of the large pot are: W1=60%, W2=30%, and W3=10%.

[0085] For example, the weights obtained according to the size of the small pot are: W1=50%, W2=30%, and W3=20%.

[0086] First, the size of the target pot in working state is determined based on the target ambient temperature, firepower information and the pot image captured by the camera. Then, different influencing factors are assigned to the pot temperature, firepower information and ambient temperature in the smoke volume calculation according to the pot size of the target pot. This allows for more accurate prediction of the smoke volume generated by each pot of different sizes during cooking when multiple pots are cooked.

[0087] S106 : Based on the smoke volume influencing strategy of the target cookware, the predicted smoke volume of the target cookware is obtained according to the pot temperature, the ambient temperature and the firepower information of the target cookware.

[0088] Specifically, for each pot, the predicted smoke volume is calculated according to the influencing factors in the determined smoke volume influencing strategy, the pot temperature, the ambient temperature, the firepower information and the corresponding influencing factors.

[0089] For example, when the weight value corresponding to the temperature inside the pot is W1, the weight corresponding to the ambient temperature is W2, and the weight corresponding to the firepower information is W3, the final smoke volume can be defined as follows:

[0090] P=P1×W1+P2×W2+P3×W3

[0091] Where P1 is the smoke volume predicted based on the temperature inside the pot, P2 is the smoke volume predicted based on the ambient temperature, and P3 is the smoke volume predicted based on the stove firepower information.

[0092] Furthermore, the temperature above the cookware measured by the temperature sensor when the target cookware is not in a working state is respectively obtained as the first ambient temperature of the target cookware;

[0093] Furthermore, the temperature above the cookware measured by the temperature sensor when the target cookware is in a working state is obtained as the second ambient temperature of the target cookware; the ambient temperature difference of the target cookware is obtained according to the difference between the first ambient temperature and the second ambient temperature of the target cookware; the temperature difference inside the pot of the target cookware is obtained by obtaining the temperature difference within a preset time; based on the smoke volume influencing strategy of the target cookware, the smoke volume predicted according to the target cookware is determined according to the ambient temperature difference of the target cookware, the temperature difference inside the pot of the target cookware, and the firepower information of the target cookware.

[0094] It should be noted that the difference is the difference between the current moment value and the previous moment value, for example, the difference between the current pot temperature and the pot temperature 500ms ago.

[0095] For example, for a target cookware, the temperature difference ΔT between the two moments before and after the preset time is calculated. target The temperature difference inside the pot is obtained based on the difference ΔT between the ambient temperature above the pot when it is not in working state and the ambient temperature above the pot when it is in working state.env The ambient temperature difference is obtained, and the stove firepower information corresponding to the pot is obtained by F ad Indicates that the amount of smoke predicted based on the cookware is represented by P, where the P value is a percentage value with a maximum value of 100. A larger percentage indicates a larger amount of smoke and a higher fan gear is required.

[0096] For example, when two pots, one large and one small, are being used for cooking, the weight W1 for the small pot's internal temperature is 50%, the weight W2 for the ambient temperature is 30%, and the weight W3 for the stove power information is 20%. If the smoke volume P1 calculated based on the internal pot temperature difference is 90, the smoke volume P2 calculated based on the ambient temperature difference is 30, and the smoke volume P3 calculated based on the stove power information is 20, the final smoke volume value is: P = 90 × 50% + 30 × 30% + 20 × 20%, resulting in a predicted smoke volume value of 55% for the small pot.

[0097] For example, if the weighted value W1 for the pot temperature determined based on the large pot is 60%, the weighted value W2 for the ambient temperature is 30%, and the weighted value W3 for the stove power information is 10%, then if the smoke volume value P1 calculated based on the pot temperature difference is 90, the smoke volume value P2 calculated based on the ambient temperature difference is 80, and the smoke volume value P3 calculated based on the stove power information is 90, the final smoke volume value is: P = 90 × 60% + 80 × 30% + 90 × 10%, resulting in a predicted smoke volume value of 87%. The operating parameters of the range hood fan are then determined based on the predicted smoke volume value for the large pot.

[0098] For cooking with multiple pots, the smoke volume is calculated for each pot based on the temperature inside the pot, firepower information, ambient temperature, and different weights determined according to the size of the pot. This allows for a more accurate prediction of the smoke volume generated when cooking with multiple pots, allowing for more intelligent adjustment of fan parameters when multiple pots are cooking at the same time.

[0099] S107: Determine operating parameters of a range hood fan according to the predicted amount of smoke from the target cookware, and control the operation of the range hood fan according to the operating parameters.

[0100] Specifically, when the number of target cookware is one, the operating parameters of the range hood fan are determined based on the predicted smoke volume of the one target cookware; when the number of target cookware is multiple, the operating parameters of the range hood fan are determined based on the maximum value of the predicted smoke volume of the multiple target cookware.

[0101] In some embodiments, the range hood has only one air cavity. When there are multiple target cookware, since the predicted smoke volume values ​​of different cookware are different, the operating parameters of the fan are determined based on the maximum value of the smoke volume predicted by multiple cookware, which can achieve faster absorption of oil smoke.

[0102] In some embodiments, the range hood can also be provided with two air cavities. In this case, the operating parameters of the left and right air cavities of the fan can be determined respectively according to the predicted smoke volume of multiple cookware, thereby absorbing oil smoke more intelligently and saving energy.

[0103] The operating parameters of the range hood fan include: the fan gear and gear change rate of the range hood fan.

[0104] In some embodiments, the range hood fan gear can be defined as three gears: low gear, high gear, and stir-fry gear. It should be noted that the fan gear can be further divided into more gears according to needs in actual application scenarios, and this application does not limit this.

[0105] For example, when there is only one target cookware and the predicted smoke volume of the target cookware is less than 30%, it means that the smoke volume is small and the fan operates at a low gear.

[0106] For example, when there are two target cookware, and the maximum value of the predicted smoke volume of the two target cookware is 30% to 70%, it indicates that the smoke volume is large, and the fan operates at a high level.

[0107] For example, when there are two target cookware, and the maximum value of the predicted smoke volume of the two target cookware is greater than 70%, it indicates that the smoke volume is large, and the fan operates in the stir-fry gear.

[0108] Furthermore, the fan gear change rate can be determined based on the predicted smoke volume of the target cookware. For example, when the maximum value of the predicted smoke volume of all target cookware is very large, the gear change rate is increased and the speed at which the fan is adjusted to the stir-fry gear is accelerated, thereby being able to absorb oil smoke in a shorter time and improving the user experience.

[0109] The range hood control method provided in the embodiment of the present application first determines the number of pots through a camera. The method then determines the pot size of the target pot based on the ambient temperature and corresponding firepower information of the target pot and the pot image captured by the camera. The method also assigns different influencing factors to the pot temperature, ambient temperature, and firepower information in the smoke volume calculation based on the pot size of the target pot. Secondly, the smoke volume is calculated based on the pot temperature, firepower information, and ambient temperature of the target pot and the different influencing factors, achieving a more accurate prediction of the smoke volume. This more accurately reflects the user's cooking situation when using multiple pots, allowing for more accurate prediction of smoke volume when cooking with multiple pots simultaneously, and thus more intelligent adjustment of the range hood fan parameters.

[0110] Please refer to Figure 5 , Figure 5 This is a schematic block diagram of a range hood control system provided in an embodiment of the present application. Figure 5As shown, the range hood control system 200 includes: a range hood 10 and a stove 20, wherein the range hood 10 is in communication with the stove 20, wherein: the range hood 10 includes a range hood main unit, a range hood fan, a camera and a temperature sensor;

[0111] The stove 20 is used to report the fire power information to the range hood 10 in real time.

[0112] The range hood host is used for:

[0113] determining the number of pots under the range hood based on the pot body image captured by the camera;

[0114] Obtaining the firepower information reported by the stove in real time;

[0115] If there are multiple pots under the range hood according to the pot body image, a pot in a working state is determined as a target pot according to the fire power information;

[0116] Obtaining the temperature above the target cookware measured in real time by the temperature sensor to obtain the ambient temperature of the target cookware;

[0117] Determining the pot size of the target cookware, and determining a smoke volume influencing strategy for the target cookware based on the pot size;

[0118] Based on the smoke volume influencing strategy of the target cookware, the predicted smoke volume of the target cookware is obtained according to the target cookware internal temperature, ambient temperature and fire power information measured in real time by the temperature sensor;

[0119] The operating parameters of the range hood fan are determined according to the predicted amount of smoke produced by the target cookware, and the operation of the range hood fan is controlled according to the operating parameters.

[0120] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the control system of the range hood described above can refer to the corresponding process in the aforementioned control method embodiment of the range hood, and will not be repeated here.

[0121] See also Figure 6 , Figure 6 300 is a schematic block diagram of a range hood provided in an embodiment of the present application. The range hood hood 300 includes a memory 301 and a processor 302.

[0122] The memory 301 may include a non-volatile storage medium and an internal memory. The non-volatile storage medium may store a computer program. The computer program includes program instructions that, when executed, enable the processor to execute any range hood control method.

[0123] The processor 302 is used to provide computing and control capabilities, and calculate the predicted smoke volume based on the internal temperature, ambient temperature and fire power information of multiple cookware and a weight factor determined according to the size of the cookware.

[0124] The memory 301 provides an environment for the operation of the computer program in the non-volatile storage medium. When the computer program is executed by the processor 302, the processor 302 can execute any control method of the range hood.

[0125] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the range hood to which the scheme of the present application is applied. The specific range hood may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0126] It should be understood that the memory 301 may be a Flash chip, a read-only memory (ROM) disk, an optical disk, a USB flash drive, or a mobile hard disk, etc., and the processor 302 may be a central processing unit (CPU), which may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0127] In some embodiments, the processor 302 is configured to run a computer program stored in the memory 301 to perform the following steps:

[0128] determining the number of pots under the range hood based on the pot body image captured by the camera; obtaining the firepower information corresponding to the target pot reported by the stove in real time; determining the number of pots under the range hood based on the pot body image captured by the camera; obtaining the firepower information reported by the stove in real time; if there are multiple pots under the range hood according to the pot body image, determining the pot in working state as the target pot according to the firepower information; obtaining the ambient temperature of the target pot by obtaining the temperature above the target pot measured in real time by the temperature sensor; determining the pot size of the target pot, and determining the smoke volume influencing strategy of the target pot based on the pot body size; based on the smoke volume influencing strategy of the target pot, obtaining the predicted smoke volume of the target pot based on the pot temperature, ambient temperature and firepower information of the target pot measured in real time by the temperature sensor; determining the operating parameters of the range hood fan based on the predicted smoke volume of the target pot, and controlling the operation of the range hood fan based on the operating parameters.

[0129] In some embodiments, when determining the operating parameters of the range hood fan based on the predicted amount of smoke from the target cookware, the processor 302 further performs: when the number of the target cookware is one, determining the operating parameters of the range hood fan based on the predicted amount of smoke from the one target cookware; when the number of the target cookware is multiple, determining the operating parameters of the range hood fan based on the maximum value of the predicted amount of smoke from the multiple target cookware.

[0130] In some embodiments, when determining the pot size of the target cook, the processor 302 further performs the following: determining a first pot size of the target cook based on the firepower information and ambient temperature corresponding to the target cook; determining a second pot size of the target cook based on the analyzed pot image; when the first pot size matches the second pot size, using the first pot size or the second pot size as the pot size of the target cook; when the first pot size does not match the second pot size, using the first pot size as the pot size of the target cook.

[0131] In some embodiments, when determining the first pot body size of the target cook based on the firepower information and ambient temperature corresponding to the target cook, the processor 302 further executes: obtaining a measured temperature range corresponding to the firepower information, where the measured temperature range is determined by the pot body size; determining the pot body size of the cook based on the ambient temperature and the measured temperature range; wherein the same pot body size corresponds to different measured temperature ranges under different firepower information, and different pot body sizes correspond to different measured temperature ranges under the same firepower information.

[0132] In some embodiments, when determining the first pot body size of the target cook based on the firepower information and ambient temperature corresponding to the target cook, the processor 302 further executes: obtaining a preset record table, which records the mapping relationship between ambient temperature and pot body size under different firepower information; and determining the pot body size of the cook by querying the preset record table based on the firepower information and ambient temperature.

[0133] In some embodiments, the processor 302 further executes: the smoke volume influencing strategy includes: smoke volume influencing factors and influencing factors corresponding to the smoke volume influencing factors; the smoke volume influencing factors include pot temperature, ambient temperature, and fire power information; the influencing factors include pot temperature weight, ambient temperature weight, and fire power weight; based on the smoke volume influencing strategy of the target cookware, obtaining the predicted smoke volume of the target cookware according to the pot temperature, ambient temperature, and fire power information of the target cookware measured in real time by the temperature sensor;

[0134] The formula is represented as:

[0135] P=P1×W1+P2×W2+P3×W3

[0136] In the formula, W1 is the weight of the target cookware's internal temperature, W2 is the weight of the target cookware's ambient temperature, and W3 is the weight of the target cookware's firepower information; P1 is the amount of smoke predicted based on the target cookware's internal temperature, P2 is the amount of smoke predicted based on the target cookware's ambient temperature, and P3 is the amount of smoke predicted based on the target cookware's firepower information.

[0137] In some embodiments, when the predicted smoke volume of the target cook is obtained according to the target cook's pot temperature, ambient temperature and firepower information based on the smoke volume influencing strategy of the target cook, the processor 302 further executes: obtaining the temperature above the cookware measured by the temperature sensor when the target cookware is not in a working state as the first ambient temperature of the target cookware; obtaining the temperature above the cookware measured by the temperature sensor when the target cookware is in a working state as the second ambient temperature of the target cookware; obtaining the ambient temperature difference of the target cookware according to the difference between the first ambient temperature and the second ambient temperature of the target cookware; obtaining the temperature difference of the pot inside the target cookware within a preset time to obtain the pot temperature difference of the target cookware; and determining the predicted smoke volume of the target cookware according to the target cookware's ambient temperature difference, the pot temperature difference of the target cookware and the firepower information based on the smoke volume influencing strategy of the target cookware.

[0138] In some embodiments, when determining the operating parameters of the range hood fan based on the predicted amount of smoke from the target cookware, the processor 302 further executes: determining the fan gear and gear change rate of the range hood fan based on the predicted amount of smoke from the target cookware to obtain the operating parameters of the range hood fan.

[0139] In the above embodiments, the description of each embodiment has its own focus. For the part that is not described in detail in a certain embodiment, please refer to the detailed description of the control method for the range hood above, and will not be repeated here.

[0140] The embodiments of the present application also provide a computer-readable storage medium, which stores a computer program. The computer program includes program instructions, and a processor executes the program instructions to implement any of the range hood control methods provided in the embodiments of the present application. For example, the computer program is loaded by the processor and can execute the following steps:

[0141] Determine the number of pots under the range hood based on the pot body image captured by the camera; obtain the firepower information reported by the stove in real time; if there are multiple pots under the range hood according to the pot body image, determine the pot in working state as the target pot among the pots according to the firepower information; obtain the temperature above the target pot measured in real time by the temperature sensor to obtain the ambient temperature of the target pot; determine the pot body size of the target pot, and determine the smoke volume influencing strategy of the target pot according to the pot body size; based on the smoke volume influencing strategy of the target pot, obtain the predicted smoke volume of the target pot according to the pot internal temperature, ambient temperature and firepower information of the target pot measured in real time by the temperature sensor; determine the operating parameters of the range hood fan according to the predicted smoke volume of the target pot, and control the operation of the range hood fan according to the operating parameters.

[0142] The specific implementation of the above operations can be found in the previous embodiments and will not be repeated here.

[0143] The computer-readable storage medium may be an internal storage unit of the range hood in the aforementioned embodiment, such as a hard disk or memory of the range hood. The computer-readable storage medium may also be an external storage device of the range hood, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., provided on the range hood.

[0144] Since the computer program stored in the computer-readable storage medium can execute any range hood control method provided in the embodiments of the present application, the beneficial effects that can be achieved by any range hood control method provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0145] It should be understood that the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0146] It should also be understood that the term "and / or" used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations. It should be noted that, in this article, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "including a..." does not exclude the presence of other identical elements in the process, method, article or system that includes the element.

[0147] The serial numbers of the embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments. The above description is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

Claims

1. A control method for a range hood linked to a stove, characterized in that: The range hood includes a temperature sensor and a camera, and is communicatively connected to the cooker; the method includes: determining the number of pots under the range hood based on the pot body image captured by the camera; Obtaining the firepower information reported by the stove in real time; If there are multiple pots under the range hood according to the pot body image, a pot in a working state is determined as a target pot according to the fire power information; Obtaining the temperature above the target cookware measured in real time by the temperature sensor to obtain the ambient temperature of the target cookware; Determining the pot size of the target cookware, and determining a smoke volume influencing strategy for the target cookware based on the pot size; Based on the smoke volume influencing strategy of the target cookware, the predicted smoke volume of the target cookware is obtained according to the target cookware internal temperature, ambient temperature and fire power information measured in real time by the temperature sensor; Determining operating parameters of a range hood fan according to the predicted amount of smoke produced by the target cookware, and controlling the operation of the range hood fan according to the operating parameters; The smoke volume influencing strategy includes: smoke volume influencing factors and influencing factors corresponding to the smoke volume influencing factors; The factors affecting the amount of smoke include the temperature inside the pot, the ambient temperature and the fire power information; The influencing factors include the weight of the temperature in the pot, the weight of the ambient temperature and the weight of the firepower; Based on the smoke volume influencing strategy of the target cookware, the predicted smoke volume of the target cookware is obtained according to the target cookware internal temperature, ambient temperature and fire power information measured in real time by the temperature sensor; The formula is represented as: P=P1×W1+P2×W2+P3×W3 In the formula, W1 is the weight of the target cookware's internal temperature, W2 is the weight of the target cookware's ambient temperature, and W3 is the weight of the target cookware's firepower information; P1 is the amount of smoke predicted based on the target cookware's internal temperature, P2 is the amount of smoke predicted based on the target cookware's ambient temperature, and P3 is the amount of smoke predicted based on the target cookware's firepower information.

2. The range hood control method according to claim 1, characterized in that: The step of determining the operating parameters of the range hood fan according to the predicted smoke volume of the target cookware includes: When the number of the target cookware is one, determining the operating parameters of the range hood fan according to the predicted smoke volume of the one target cookware; When there are multiple target cookware, the operating parameters of the range hood fan are determined according to the maximum value of the predicted smoke volumes of the multiple target cookware.

3. The control method of the range hood according to claim 1, characterized in that: Determining the size of the target cookware includes: determining a first pot size of the target cookware according to the firepower information corresponding to the target cookware and the ambient temperature; determining a second pot size of the target pot according to the analyzed pot image; When the first pot body size matches the second pot body size, using the first pot body size or the second pot body size as the pot body size of the target cookware; When the first pot body size does not match the second pot body size, the first pot body size is used as the pot body size of the target pot.

4. The range hood control method according to claim 3, characterized in that: The determining the first pot size of the target cookware according to the firepower information corresponding to the target cookware and the ambient temperature includes: Obtaining a measured temperature range corresponding to the firepower information, where the measured temperature range is determined by the size of the pot; determining a first pot body size of the target cookware according to the ambient temperature and the measured temperature range; Among them, the same pot body size corresponds to different measurement temperature ranges under different said firepower information, and different pot body sizes correspond to different measurement temperature ranges under the same firepower information.

5. The control method of the range hood according to claim 3, characterized in that: The determining the first pot size of the target cookware according to the firepower information corresponding to the target cookware and the ambient temperature includes: Obtaining a preset record table, wherein the preset record table records a mapping relationship between ambient temperature and pot size under different firepower information; According to the firepower information and the ambient temperature, the first pot body size of the target cookware is determined by querying the preset record table.

6. The range hood control method according to claim 1, characterized in that: The smoke volume influencing strategy based on the target cookware, obtaining the predicted smoke volume of the target cookware according to the pot temperature, ambient temperature and firepower information of the target cookware, includes: acquiring a temperature above the target cookware measured by the temperature sensor when the target cookware is not in an operating state as a first ambient temperature of the target cookware; acquiring a temperature above the target cookware measured by the temperature sensor when the target cookware is in an operating state as a second ambient temperature of the target cookware; Obtaining an ambient temperature difference of the target cookware according to a difference between the first ambient temperature and the second ambient temperature of the target cookware; Obtaining a temperature difference of the target pot's internal temperature within a preset time to obtain a temperature difference within the pot; Based on the smoke volume influencing strategy of the target cookware, the smoke volume predicted for the target cookware is determined according to the ambient temperature difference, the temperature difference inside the cookware, and the firepower information of the target cookware.

7. The range hood control method according to any one of claims 1 to 6, characterized in that: Determining the operating parameters of the range hood fan according to the predicted smoke volume of the target cookware includes: The fan gear and gear change rate of the range hood fan are determined according to the predicted smoke volume of the target cookware, and the operating parameters of the range hood fan are obtained.

8. A control system for a range hood combined with a range cooker, characterized in that: The range hood includes a temperature sensor and a camera, and is in communication with the cooker; wherein: the range hood includes a range hood main unit and a range hood fan; The stove is used to report fire power information to the range hood in real time; The range hood host is used for: determining the number of pots under the range hood based on the pot body image captured by the camera; Obtaining the firepower information reported by the stove in real time; If there are multiple pots under the range hood according to the pot body image, a pot in a working state is determined as a target pot according to the fire power information; Obtaining the temperature above the target cookware measured in real time by the temperature sensor to obtain the ambient temperature of the target cookware; Determining the pot size of the target cookware, and determining a smoke volume influencing strategy for the target cookware based on the pot size; Based on the smoke volume influencing strategy of the target cookware, the predicted smoke volume of the target cookware is obtained according to the target cookware internal temperature, ambient temperature and fire power information measured in real time by the temperature sensor; Determining operating parameters of a range hood fan according to the predicted amount of smoke produced by the target cookware, and controlling the operation of the range hood fan according to the operating parameters; The smoke volume influencing strategy includes: smoke volume influencing factors and influencing factors corresponding to the smoke volume influencing factors; The factors affecting the amount of smoke include the temperature inside the pot, the ambient temperature and the fire power information; The influencing factors include the weight of the temperature in the pot, the weight of the ambient temperature and the weight of the firepower; Based on the smoke volume influencing strategy of the target cookware, the predicted smoke volume of the target cookware is obtained according to the target cookware internal temperature, ambient temperature and fire power information measured in real time by the temperature sensor; The formula is represented as: P=P1×W1+P2×W2+P3×W3 In the formula, W1 is the weight of the target cookware's internal temperature, W2 is the weight of the target cookware's ambient temperature, and W3 is the weight of the target cookware's firepower information; P1 is the amount of smoke predicted based on the target cookware's internal temperature, P2 is the amount of smoke predicted based on the target cookware's ambient temperature, and P3 is the amount of smoke predicted based on the target cookware's firepower information.

9. A range hood, characterized in that: include: A processor and a memory, wherein a computer program is stored in the memory, and when the processor calls the computer program in the memory, the control method of the range hood according to any one of claims 1 to 7 is executed.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store a computer program, and the computer program is loaded by a processor to execute the control method of the range hood according to any one of claims 1 to 7.

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