A control method, device and equipment of an extractor hood and a storage medium

Abstract

The embodiment of the application discloses a kind of range hood control method, device, equipment and storage medium, specifically related to intelligent electrical appliance technical field, the control method of the range hood includes: obtaining the smoke data obtained by smoke detector in current scene, and obtaining the back pressure data obtained by back pressure detector in flue of range hood;Determine the type information of current scene based on smoke data and back pressure data;Determine the working mode of motor based on the type information of current scene;Control motor to run according to working mode to drive fan to work.In the embodiment of the application, the size condition of oil fume of the environment where the user currently stays can be accurately judged.According to the environment where the user currently stays, the motor can be controlled to run in corresponding power mode, the oil fume in the environment where the user stays can be accurately sucked, the best smoke suction effect is achieved, further energy consumption can be reduced, and user experience is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to intelligent electrical appliance technology, and more particularly to a control method, device, equipment and storage medium for a range hood. Background Technology

[0002] A range hood is an appliance used to purify the kitchen environment. It removes fumes, steam, and other exhaust gases produced by the stove during cooking. The higher the air pressure and air volume of a range hood, the more fumes it can remove. However, excessive air pressure and air volume will also cause the range hood to consume more energy.

[0003] Existing range hoods typically offer three smoke extraction modes: high, medium, and low. This is usually achieved by using smoke sensors to measure the concentration of cooking fumes produced by the cooktop and adjusting the hood's air pressure and airflow accordingly. However, in real-world cooking, the amount of fumes produced by the cooktop varies depending on the user's cooking methods. Therefore, simply setting the air pressure and airflow based on smoke concentration is ineffective, failing to achieve precise smoke extraction under different conditions. This results in wasted resources and a reduced user experience. Summary of the Invention

[0004] This invention provides a control method, device, electronic equipment, and storage medium for a range hood, which can improve the smoke extraction effect of the range hood and enhance the user experience.

[0005] In a first aspect, embodiments of the present invention provide a control method for a range hood, the range hood including a smoke detector, a back pressure detector, a motor, and a fan, the method comprising:

[0006] The smoke detector obtains smoke data from the current scene and the back pressure detector obtains back pressure data from the exhaust duct of the range hood.

[0007] The type information of the current scene is determined based on the smoke detection data and the back pressure data;

[0008] The operating mode of the motor is determined based on the type information of the current scenario;

[0009] The motor is controlled to operate in the operating mode to drive the fan.

[0010] Secondly, embodiments of the present invention provide a control device for a range hood, the device comprising:

[0011] The data acquisition module is used to acquire smoke detection data obtained by the smoke detector in the current scene, and to acquire back pressure data obtained by the back pressure detector in the flue of the range hood.

[0012] The information determination module is used to determine the type information of the current scene based on the smoke detection data and the back pressure data;

[0013] The mode determination module is used to determine the operating mode of the motor based on the type information of the current scenario.

[0014] The fan control module is used to control the motor to operate according to the working mode to drive the fan.

[0015] Thirdly, embodiments of the present invention also provide a control device for a range hood, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the control method for the range hood as described in any of the embodiments of the present invention.

[0016] Fourthly, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method for a range hood as described in any of the embodiments of the present invention.

[0017] In this embodiment of the invention, the range hood includes a smoke detector, a back pressure detector, a motor, and a fan. The method of this embodiment can acquire smoke detection data from the smoke detector detecting the current scene, and acquire back pressure data from the back pressure detector detecting the range hood's ductwork; determine the type information of the current scene based on the smoke detection data and back pressure data; determine the operating mode of the motor based on the type information of the current scene; and control the motor to operate according to the operating mode to drive the fan. That is, in this embodiment of the invention, smoke detection data and back pressure data can be combined to determine the type information of the current scene, accurately judging the level of cooking fumes in the user's current environment. Furthermore, by controlling the motor to operate in a corresponding power mode according to the user's current environment, the hood can accurately absorb the cooking fumes in the user's environment, achieving the best smoke extraction effect, while reducing energy consumption and improving the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A flowchart illustrating the control method for a range hood provided in an embodiment of the present invention;

[0020] Figure 2 The structural intent of the range hood provided in the embodiment of the present invention;

[0021] Figure 3 This is another schematic flowchart of the control method for a range hood provided in an embodiment of the present invention;

[0022] Figure 4 A flowchart for controlling the operation of the fan provided in an embodiment of the present invention;

[0023] Figure 5 A structural diagram of the control device for a range hood provided in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of a control device for a range hood provided in an embodiment of the present invention. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0026] Figure 1 This is a flowchart illustrating a control method for a range hood provided in an embodiment of the present invention. The method of this embodiment can improve the smoke extraction effect of the range hood and enhance the user experience. This method can be executed by a control device for the range hood provided in this embodiment, which can be implemented using software and / or hardware. In a specific embodiment, the device can be a controller for the range hood, such as... Figure 2 As shown, the range hood may also include a smoke detector, a back pressure detector, a motor, and a fan. The controller is connected to the smoke detector, the back pressure detector, and the motor, and the motor is also connected to the fan. The following embodiment will illustrate this by showing the device integrated into the range hood's controller. (Refer to...) Figure 1 The method may specifically include the following steps:

[0027] Step 101: Obtain smoke detection data from the smoke detector in the current scene, and obtain back pressure data from the back pressure detector in the range hood's flue.

[0028] The smoke detector can be low-cost and capable of measuring the presence of cooking fumes in the current environment. The smoke detection data includes whether cooking fumes are present in the current environment. The back pressure detector is used to detect the back pressure value at the outlet of the range hood in the common flue. Specifically, when a user is cooking, the stove produces a certain concentration of cooking fumes, and simultaneously, a certain flue pressure is generated at the outlet of the common flue. The smoke detector monitors the presence of cooking fumes in the current scene in real time; when the cooking fumes reach a certain concentration, the smoke detector will detect their presence. At the same time, the back pressure detector monitors the back pressure value at the outlet of the range hood's flue in real time, obtaining real-time back pressure data.

[0029] Step 102: Determine the type information of the current scene based on smoke detection data and back pressure data.

[0030] The current scenario refers to the cooking environment the user is currently in. Based on the varying levels of smoke produced by the cooktop in different scenarios, the current scenario can be categorized into low-smoke, medium-smoke, and high-smoke scenarios. Simultaneously, the back pressure detector will detect different back pressure data under different cooking scenarios. Based on these different smoke and back pressure data, the current scenario type can be determined. For example, when the user starts cooking, the range hood is on, and the concentration of smoke produced by the cooktop is very low; the smoke detector will detect no smoke. Simultaneously, the back pressure value measured by the back pressure detector will also be low. Therefore, based on the smoke and back pressure data, the current scenario type can be determined as a low-smoke scenario. Furthermore, as the user cooks for a period of time, more smoke and back pressure may be generated. For example, when the user performs stir-frying, the cooktop will produce a large amount of smoke; at this time, the smoke detector may detect smoke. When the smoke detector detects smoke, the current cooking scenario type can be determined as a high-smoke scenario, indicating a cooking scenario that produces a significant amount of smoke.

[0031] Step 103: Determine the motor's operating mode based on the type information of the current scenario.

[0032] The motor drives the fan to extract the cooking fumes generated by the stove during cooking, purifying the kitchen environment. The higher the motor's power, the greater the fan's airflow and pressure. Based on the motor's power, its operating modes can be categorized as low-power, medium-power, and high-power. Specifically, the operating mode of the motor can be determined based on the current scenario. For example, if the current scenario is a low-fume scenario, it indicates a cooking scenario with relatively little fume production. In this case, only a small airflow and pressure are needed to remove the fumes, further defining the motor's operating mode as low-power mode. Conversely, if the current scenario is a high-fume scenario (such as stir-frying), it indicates a cooking scenario with a large amount of fume production. In this case, sufficient airflow and pressure are required to remove the fumes, further defining the motor's operating mode as high-power mode.

[0033] Step 104: Control the motor to operate in the working mode to drive the fan.

[0034] Specifically, during cooking, the fan generates air pressure and volume to remove cooking fumes from the stove, purifying the kitchen environment. The fan is driven by a motor; the higher the motor's power, the greater the air pressure and volume generated by the fan. However, this also results in higher noise levels. By determining the motor's operating mode, it can be controlled to operate and drive the fan accordingly, preventing excessive airflow and pressure in low-fume scenarios, which would generate excessive noise and reduce user experience. For example, when boiling water, based on smoke sensor data and back pressure data, the current scenario is determined to be a low-fume scenario, further determining the motor's operating mode to be low-power mode. In low-power mode, the motor drives the fan to generate lower air pressure and volume to remove cooking fumes from the stove.

[0035] The technical solution of this embodiment includes a range hood comprising a smoke detector, a back pressure detector, a motor, and a fan. The method of this embodiment can acquire smoke detection data from the smoke detector and back pressure data from the back pressure detector's detection of the range hood's duct; determine the type information of the current scene based on the smoke detection data and back pressure data; determine the motor's operating mode based on the current scene type information; and control the motor to operate according to the operating mode to drive the fan. This technical solution utilizes smoke detection data obtained from a low-cost smoke detector, combining the smoke detection data and back pressure data to determine the type information of the current scene. While saving costs, it can accurately determine the level of cooking fumes in the user's environment, accurately extracting the fumes from the user's surroundings for optimal smoke extraction. Furthermore, it avoids the situation where the fan generates excessive airflow and pressure, resulting in significant noise, in low-fume scenarios, thus improving the user experience.

[0036] The control method for range hoods will be further explained below. Figure 3 This is another flowchart illustrating the control method for a range hood provided in an embodiment of the present invention. The specific determination method can be as follows: Figure 3 As shown, the method may include the following steps:

[0037] Step 201: Obtain smoke detection data from the smoke detector in the current scene, and obtain back pressure data from the back pressure detector in the range hood's flue.

[0038] Step 2021: If the smoke detection data detected within the first preset time period is smokeless and the back pressure data is not greater than the first back pressure value, then the current scene type information is determined to be a low oil fume scene.

[0039] The current scenario can be the user's current cooking situation. Based on the different levels of smoke produced by the stove, the current scenario can be categorized into low-smoke, medium-smoke, and high-smoke scenarios. The first preset duration and the first back pressure value can be set according to specific needs. Specifically, when the user first starts cooking, the smoke detector may detect no smoke, but the back pressure detector can measure the back pressure value of the flue in real time. At this time, the type of the current scenario can be determined based on the back pressure data. For example, assuming the first back pressure value is 230 Pa and the first preset duration is 26 seconds. When the user is boiling water, the smoke produced by the stove is very small, the smoke detector detects no smoke, and the back pressure detector can measure the back pressure value of the flue in real time. If, until the 26th second, the back pressure value measured by the back pressure detector is no greater than 230 Pa, then the type of the current scenario is determined to be a low-smoke scenario.

[0040] Step 2022: When the current scenario type information is a low-fume scenario, determine the motor's working mode as low-power mode.

[0041] Specifically, the higher the motor's operating power, the greater the airflow and air pressure of the fan. Based on the motor's operating power, its operating modes can be categorized as low-power, medium-power, and high-power. If the current scenario is classified as a low-smoke scenario, it indicates that the stove produces relatively little smoke. In this case, a large airflow and air pressure are not needed to extract the smoke, and the motor should not operate at excessive power to drive the fan. Therefore, when the current scenario is classified as a low-smoke scenario, the motor's operating mode is determined to be low-power mode. For example, when the user is boiling water, the stove produces relatively little smoke; based on smoke sensor data and back pressure data, the current scenario is determined to be a low-smoke scenario. Furthermore, based on the low-smoke scenario, the motor's operating mode is determined to be low-power mode.

[0042] Step 2023: When the motor is in low power mode, control the motor to run in low power mode to drive the fan.

[0043] The fan is driven by an electric motor. The higher the motor's power, the greater the air pressure and volume generated by the fan. However, this also means higher air pressure and volume, and consequently, higher noise levels. When the motor operates in low-power mode, it indicates that only a small amount of airflow and pressure is needed to extract the fumes. In low-power mode, the fan produces less noise and generates less airflow and pressure to extract the fumes.

[0044] Step 2024: After controlling the motor to run in low power mode to drive the fan, if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the first back pressure value, then control the motor to run in medium power mode to drive the fan.

[0045] The second preset duration can be determined based on specific needs and time conditions. In practical applications, the second preset duration can be shorter than the first preset duration. Specifically, the amount of oil fumes produced by the stove during cooking is not constant. For example, when a user first starts cooking, the amount of oil fumes produced by the stove is relatively small within the first preset duration. Based on smoke detection data and back pressure data, the current scenario is determined to be a low-smoke scenario. However, after a period of time, the stove may produce more oil fumes. For example, within the first preset duration, the user is boiling water in a pot, and the amount of oil fumes produced by the stove is relatively small. As the water temperature rises, the user may open the pot lid and continuously add various ingredients, at which point the amount of oil fumes produced by the stove will continuously increase. However, the amount of oil fumes produced by the stove has not yet reached a certain concentration, so the smoke detection data may show no smoke, while the back pressure data will continuously increase with the change in the amount of oil fumes. At this time, the motor operates in low-power mode, and the air pressure and air volume generated by the fan cannot effectively absorb the oil fumes. Therefore, if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the first back pressure value, the motor is controlled to operate in medium power mode to drive the fan.

[0046] Step 2025: After controlling the motor to run in low power mode to drive the fan, if the detected smoke sensor data indicates the presence of smoke, then control the motor to run in high power mode to drive the fan.

[0047] Specifically, when the motor operates in low-power mode, it indicates that the back pressure value measured by the back pressure detector is low in the current scenario, requiring only a small airflow and pressure to extract the fumes. However, the concentration of fumes produced by the stove may be high at this time, so it is necessary to combine the smoke detection data and back pressure data for analysis to determine the motor's operating mode. Further, after controlling the motor to operate in low-power mode to drive the fan, if the detected smoke data indicates the presence of smoke, the motor is controlled to operate in high-power mode to drive the fan. For example, during the process of heating oil, the back pressure value measured by the back pressure detector is low, and the motor operates in low-power mode to drive the fan. However, when the user starts adding food to the pot, the concentration of fumes increases rapidly, and when the detected smoke data indicates the presence of smoke, the motor is controlled to operate in high-power mode to drive the fan.

[0048] Step 2026: After controlling the motor to run in high power mode to drive the fan, after the motor has run for three preset times, control the motor to run in medium power mode to drive the fan until the detected smoke sensor data shows no smoke, then proceed to step 2027.

[0049] The third preset duration can be determined based on specific needs and the actual environment. Specifically, if the current scenario is determined to be a low-smoke scenario, and the user begins cooking operations such as stir-frying, the smoke detector will detect smoke. At this time, to better absorb the smoke, the motor will operate in high-power mode to drive the fan. However, the amount and concentration of smoke will constantly change during cooking. For example, when stir-frying, the smoke concentration produced by the stove is very high when the ingredients are first put into the pan, but gradually decreases as the ingredients move around in the pan. Therefore, to avoid wasting resources, after controlling the motor to operate in high-power mode to drive the fan, after the motor has been running for the third preset duration, the motor will be controlled to operate in medium-power mode to drive the fan. Furthermore, after controlling the motor to operate in medium-power mode to drive the fan, until the detected smoke data shows no smoke, the motor will be controlled to operate in low-power mode to drive the fan; otherwise, the motor will be controlled to stabilize in medium-power mode to drive the fan.

[0050] Step 2027: Control the motor to operate in low power mode to drive the fan.

[0051] Step 2031: If the smoke detection data detected within the first preset time period is smokeless and the back pressure data is greater than the first back pressure value but not greater than the second back pressure value, then the current scene type information is determined to be a medium oil fume scene.

[0052] The second back pressure value is greater than the first back pressure value. The first preset duration and the second back pressure value can be set according to specific needs. Specifically, when a user first starts cooking, the smoke detector may detect no smoke, but the back pressure detector can measure the back pressure value of the flue in real time. At this time, the type of the current scene can be determined based on the back pressure data. For example, assuming the second back pressure value is 420 Pa and the first preset duration is 26 seconds. When the user is frying or grilling food, the smoke produced by the stove is very small at the beginning, and the smoke detector detects no smoke, but the back pressure detector can measure the back pressure value of the flue in real time. During the frying or grilling process, the smoke produced by the stove is generally more than that produced when boiling water, so within the first preset duration, the back pressure value of the flue measured by the back pressure detector will be greater than the first back pressure value. If, until the 26th second, the back pressure value measured by the back pressure detector is greater than 230 Pa and not greater than 420 Pa, then the type of the current scene is determined to be a medium smoke scene.

[0053] Step 2032: When the current scene type information is medium oil fume scene, determine the motor working mode as medium power mode.

[0054] Specifically, if the current scenario type information is "medium-smoke scenario," it indicates that the stove is producing a certain amount of smoke in this scenario. Therefore, when the current scenario type information is "medium-smoke scenario," the motor's operating mode is determined to be medium-power mode. For example, when a user is frying or grilling food, the stove produces a certain amount of smoke; based on smoke detection data and back pressure data, the current scenario type information is determined to be a "medium-smoke scenario." Further, based on the low-smoke scenario, the motor's operating mode is determined to be medium-power mode.

[0055] Step 2033: When the motor's operating mode is medium power mode, control the motor to operate in medium power mode to drive the fan.

[0056] When the motor operates in medium power mode, it indicates that a certain amount of airflow and air pressure are required to extract the cooking fumes in the current scenario. When the motor operates in medium power mode, the fan will generate a certain amount of airflow and air pressure to extract the cooking fumes under the drive of the motor.

[0057] Step 2034: After the control motor operates in medium power mode to drive the fan, if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the second back pressure value, then the control motor operates in high power mode to drive the fan.

[0058] As described above, the user's cooking process is not static, and the amount of fumes produced by the stove is also not constant. After the control motor operates in medium-power mode to drive the fan, if the smoke detection data is smokeless and the back pressure data is greater than the second back pressure value within a second preset time period, the control motor operates in high-power mode to drive the fan. For example, during the first preset time period, the user is stir-frying ingredients at a low oil temperature, and the stove will produce a certain amount of fumes. However, after a period of time, the user may use the same oil for high-heat stir-frying (such as sautéing onions and garlic), and the stove will produce a large amount of fumes for a period of time. However, the fumes produced by the stove have not yet reached a certain concentration, so the smoke detection data may be smokeless, while the back pressure data will increase continuously with the change in fumes. At this time, the fan needs to generate greater air pressure and air volume to absorb the fumes. Therefore, if the smoke detection data is smokeless and the back pressure data is greater than the second back pressure value within the second preset time period, the control motor operates in high-power mode to drive the fan. Furthermore, after controlling the motor to operate in medium power mode to drive the fan, if the smoke detection data detected within the second preset time period indicates the presence of smoke, then step 205 is executed.

[0059] Step 2041: If the smoke detection data detected within the first preset time period is smokeless and the back pressure data within the first preset time period is greater than the second back pressure value, then the current scene type information is determined to be a high oil fume scene.

[0060] The first preset duration and the second back pressure value can be set according to specific needs. Specifically, when a user first starts cooking, the smoke detector may detect no smoke, but the back pressure detector can measure the back pressure value of the flue in real time. At this point, the type of the current scenario can be determined based on the back pressure data. For example, assuming the second back pressure value is 420 Pa and the first preset duration is 26 seconds. When the user is stir-frying, the stove produces very little smoke when the oil is initially heated, resulting in no smoke from the smoke detector, and the back pressure detector can measure the back pressure value of the flue in real time. During the stir-frying process, the stove produces a large amount of smoke, so within the first preset duration, the back pressure value measured by the back pressure detector will be greater than the second back pressure value. If, until the 26th second, the back pressure value measured by the back pressure detector is greater than 420 Pa, then the current scenario type is determined to be a high-smoke scenario.

[0061] When the smoke detection data indicates no smoke, the system can determine the user's current environment based on the back pressure value. It can accurately extract the cooking fumes from the user's surroundings, while avoiding excessive airflow and pressure from the fan in low-smoke environments, which would otherwise generate significant noise and improve the user experience.

[0062] Step 2042: When the current scene type information is a high oil fume scene, determine the motor's working mode as high power mode.

[0063] Specifically, if the current scenario type information is "high-smoke scenario," it indicates that the stove is generating a large amount of smoke in this scenario. Therefore, when the current scenario type information is "high-smoke scenario," the motor's operating mode is determined to be high-power mode. For example, when a user is stir-frying in a Chinese style, the stove will generate a large amount of smoke. Based on smoke detection data and back pressure data, the current scenario type information is determined to be "high-smoke scenario." Further, based on the high-smoke scenario, the motor's operating mode is determined to be high-power mode.

[0064] Depending on the user's environment, the fan's air pressure and air volume can be accurately controlled by adjusting the motor's power mode. This allows for precise extraction of cooking fumes from the user's environment and avoids excessive air volume and pressure in low-fume scenarios, thus reducing energy consumption.

[0065] Step 2043: When the motor's operating mode is high-power mode, control the motor to run in high-power mode to drive the fan.

[0066] When the motor operates in high-power mode, it indicates that only a large air volume and air pressure are needed to extract the cooking fumes in the current scenario. When the motor operates in high-power mode, the fan will generate a large air volume and air pressure to extract the cooking fumes under the drive of the motor.

[0067] By controlling the motor's power mode, the fan's air pressure and air volume can be accurately controlled, enabling it to accurately extract cooking fumes from the user's environment. This also avoids the fan generating excessive air volume and air pressure in low-fume scenarios, thus reducing energy consumption.

[0068] Step 2044: After controlling the motor to run in high power mode to drive the fan, if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the preset back pressure value, then control the motor to run in preset power mode to drive the fan.

[0069] In this system, the preset back pressure value is greater than the second back pressure value, and the motor power in the preset power mode is greater than the motor power in the high power mode. When the motor operates according to the preset power mode to drive the fan, it can generate greater wind pressure and air volume to absorb the fumes. Specifically, when the back pressure data is greater than the preset back pressure value, it indicates that the stove is producing more fumes in the current scenario than in a high-fume scenario. As described in step 205 above, the user's cooking process is not constant, and the fumes produced by the stove are also not constant. After controlling the motor to operate in the high power mode to drive the fan, if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the preset back pressure value, then the motor is controlled to operate in the preset power mode to drive the fan. For example, within the first preset time period, the user is stir-frying food, and the stove produces a lot of fumes during the stir-frying process. And after a period of time, the user may add water directly to the pan after stir-frying, and the stove will produce even more fumes. At this time, the fan needs to generate greater wind pressure and air volume to absorb the fumes. Therefore, if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the second back pressure value, the motor is controlled to operate in the preset power mode to drive the fan.

[0070] Throughout the cooking process, the amount of cooking fumes produced by the cooktop constantly changes. If, assuming the smoke detector reads "no smoke," the smoke detection data repeatedly fluctuates between exceeding and falling below a preset back pressure value within a second preset time period, the motor will repeatedly adjust its power mode based on these fluctuations. This can damage the motor and may also hinder fume extraction due to the constantly changing airflow and air pressure, thus reducing the user experience. Therefore, after the smoke detection data has accumulated more than two changes, the motor's operating mode is stabilized at the preset power level to improve the user experience.

[0071] Step 205: After controlling the motor to run in medium power mode or high power mode to drive the fan, if the detected smoke sensor data indicates the presence of smoke, then control the motor to run in the preset power mode to drive the fan.

[0072] In the preset power mode, the motor's power is greater than that in the high-power mode. When the motor operates in the preset power mode to drive the fan, it can generate greater air pressure and volume to absorb the cooking fumes. Specifically, when the motor operates in medium-power or high-power mode, it indicates that the back pressure detector can detect a larger back pressure value in the current scenario. If the concentration of cooking fumes produced by the stove is high at this time, the fan needs to absorb the fumes quickly with greater air force and air pressure. Furthermore, after controlling the motor to operate in medium-power or high-power mode to drive the fan, if the smoke sensor detects smoke, the motor will be controlled to operate in the preset power mode to drive the fan. For example, when the user is stir-frying food, the motor operates in high-power mode to drive the fan. However, when the user starts adding water to the pot, the concentration of cooking fumes will increase rapidly. When the smoke sensor detects smoke, the motor will be controlled to operate in the preset power mode to drive the fan.

[0073] Step 206: After the motor is controlled to run in the preset power mode to drive the fan, after the motor has run for a third preset time, the motor is controlled to run in the high power mode to drive the fan until the detected smoke sensor data shows no smoke, then proceed to step 207.

[0074] The third preset duration can be determined based on specific needs and the actual environment. Specifically, if the current scenario is judged to be a medium or high smoke scenario, it indicates that the stove has already produced a significant amount of smoke. If the smoke detector shows smoke, it indicates that the stove is producing even denser and larger amounts of smoke. In this case, to better absorb the smoke, the motor will operate according to a preset power mode to drive the fan. During cooking, the size and concentration of smoke will continuously change. For example, when adding water to stir-fried ingredients, the smoke concentration produced by the stove will be very high, while during the subsequent boiling of water, the smoke concentration will gradually decrease. Therefore, to avoid resource waste, after controlling the motor to operate according to the preset power mode to drive the fan, after the motor has run for the third preset duration, the motor will be controlled to operate in a high-power mode to drive the fan. Furthermore, after controlling the motor to operate in high-power mode to drive the fan, until the detected smoke detector data shows no smoke, the motor will be controlled to operate in medium-power mode to drive the fan; otherwise, the motor will be controlled to stabilize in high-power mode to drive the fan.

[0075] Figure 4 A flowchart for controlling the operation of a fan, provided as an embodiment of the present invention. Figure 4As shown, when the smoke detector does not detect any cooking fumes, the back pressure data is assessed. If the detected back pressure data is not greater than the first back pressure value, the current scenario is determined to be a low-fume scenario, and the motor is controlled to operate in low-power mode to drive the fan. If the detected back pressure data is greater than the first back pressure value but not greater than the second back pressure value, the current scenario is determined to be a medium-fume scenario, and the motor is controlled to operate in medium-power mode to drive the fan. If the detected back pressure data is greater than the second back pressure value, the current scenario is determined to be a high-fume scenario, and the motor is controlled to operate in high-power mode to drive the fan. In the current scenario of low-fume, if the smoke detector data indicates smoke, the motor is controlled to operate in high-power mode to drive the fan. After a period of time (a third preset time), the motor is controlled to operate in medium-power mode to drive the fan until the smoke detector data indicates no smoke, at which point the motor is controlled to operate in low-power mode to drive the fan. Otherwise, the motor is controlled to operate stably in medium-power mode to drive the fan. In a medium / high smoke environment, when the smoke detector reading indicates smoke, the motor is controlled to operate in a preset power mode to drive the fan. After a certain period (the third preset duration), the motor is controlled to operate in a high-power mode to drive the fan, until the smoke detector reading indicates no smoke. Then, the motor is controlled to operate in a medium-power mode to drive the fan. Otherwise, the motor operates stably in a high-power mode to drive the fan.

[0076] Step 207: Control the motor to operate in medium power mode to drive the fan.

[0077] In this embodiment, smoke detection data obtained by the smoke detector in the current scene is acquired. If the smoke detection data detected within a first preset time period is smokeless and the back pressure data is not greater than the first back pressure value, then the type information of the current scene is determined to be a low-smoke scene. When the type information of the current scene is a low-smoke scene, the operating mode of the motor is determined to be low-power mode. When the operating mode of the motor is low-power mode, the motor is controlled to run in low-power mode to drive the fan. After controlling the motor to run in low-power mode to drive the fan, if the smoke detection data detected within a second preset time period is... If there is no smoke and the back pressure data is greater than the first back pressure value, the control motor will operate in medium power mode to drive the fan. After the control motor operates in low power mode to drive the fan, if the smoke detection data indicates the presence of smoke, the control motor will operate in high power mode to drive the fan. After the control motor operates in high power mode to drive the fan, after the motor has been running for a third preset time, the control motor will operate in medium power mode to drive the fan until the smoke detection data indicates no smoke, at which point the control motor will operate in low power mode to drive the fan. If the smoke detection data detected within the first preset time period is smokeless and the back pressure data is greater than the first back pressure value but not greater than the second back pressure value, then the current scenario type is determined to be a medium-smoke scenario. When the current scenario type is a medium-smoke scenario, the motor's operating mode is determined to be medium-power mode. When the motor's operating mode is medium-power mode, the motor is controlled to operate in medium-power mode to drive the fan. After the motor is controlled to operate in medium-power mode to drive the fan, if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the second back pressure value, then the motor is controlled to operate in high-power mode to drive the fan. If the smoke detection data is smokeless within the first preset time period and the back pressure data is greater than the second back pressure value within the first preset time period, the current scenario type is determined to be a high-smoke scenario. When the current scenario type is a high-smoke scenario, the motor's operating mode is determined to be high-power mode. When the motor's operating mode is high-power mode, the motor is controlled to operate in high-power mode to drive the fan. After the motor is controlled to operate in high-power mode to drive the fan, if the smoke detection data is smokeless within the second preset time period and the back pressure data is greater than the preset back pressure value, the motor is controlled to operate in the preset power mode to drive the fan. After the motor is controlled to operate in medium-power mode or high-power mode to drive the fan, if the smoke detection data is smoke, the motor is controlled to operate in the preset power mode to drive the fan. After the motor is controlled to operate in the preset power mode to drive the fan, after the motor has been running for a third preset time period, the motor is controlled to operate in high-power mode to drive the fan until the smoke detection data is smokeless, at which point the motor is controlled to operate in medium-power mode to drive the fan.The technical solution of this embodiment can accurately determine the level of oil fume in the user's current environment, and can accurately extract the oil fume in the user's environment to achieve the best smoking effect. Furthermore, it avoids the situation where the fan generates excessive airflow and pressure, resulting in excessive noise, in low-smoke scenarios, thus improving the user experience while reducing energy consumption.

[0078] Figure 5 This is a structural diagram of a control device for a range hood provided in an embodiment of the present invention. This device is suitable for executing the control method for a range hood provided in an embodiment of the present invention. Figure 5 As shown, the device may specifically include:

[0079] The data acquisition module 501 is used to acquire smoke detection data obtained by the smoke detector in the current scene and to acquire back pressure data obtained by the back pressure detector in the flue of the range hood.

[0080] Information determination module 502 is used to determine the type information of the current scene based on the smoke detection data and the back pressure data;

[0081] The mode determination module 503 is used to determine the working mode of the motor based on the type information of the current scene;

[0082] The fan control module 504 is used to control the motor to operate in the working mode to drive the fan.

[0083] Optionally, the information determination module 502 is specifically used for:

[0084] If the smoke detection data detected within the first preset time period is smoke-free and the back pressure data is not greater than the first back pressure value, then the type information of the current scene is determined to be a low-smoke scene.

[0085] If the smoke detection data detected within a first preset time period is smokeless, and the back pressure data is greater than the first back pressure value but not greater than the second back pressure value, then the type information of the current scene is determined to be a medium oil fume scene; wherein, the second back pressure value is greater than the first back pressure value;

[0086] If the smoke detection data detected within the first preset time period is smoke-free, and the back pressure data within the first preset time period is greater than the second back pressure value, then the type information of the current scene is determined to be a high-smoke scene.

[0087] Optionally, the mode determination module 503 is specifically used for:

[0088] When the type information of the current scenario is the low-fume scenario, the working mode of the motor is determined to be low-power mode;

[0089] When the type information of the current scenario is the medium oil fume scenario, the working mode of the motor is determined to be the medium power mode;

[0090] When the current scenario type information is the high oil fume scenario, the working mode of the motor is determined to be the high power mode.

[0091] Optionally, the fan control module 504 is specifically used for:

[0092] When the motor is in low-power mode, the motor is controlled to operate in low-power mode to drive the fan.

[0093] When the motor is in medium power mode, the motor is controlled to operate in medium power mode to drive the fan.

[0094] When the motor is in high-power mode, the motor is controlled to operate in high-power mode to drive the fan.

[0095] Optionally, the fan control module 504 is also used for:

[0096] After controlling the motor to operate in the low-power mode to drive the fan, the method further includes: if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the first back pressure value, then controlling the motor to operate in the medium-power mode to drive the fan.

[0097] After controlling the motor to operate in the medium power mode to drive the fan to work, the method further includes: if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the second back pressure value, then controlling the motor to operate in the high power mode to drive the fan to work.

[0098] After controlling the motor to operate in the high-power mode to drive the fan to work, the method further includes: if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the preset back pressure value, then controlling the motor to operate in the preset power mode to drive the fan to work.

[0099] The preset back pressure value is greater than the second back pressure value, and the motor power in the preset power mode is greater than the motor power in the high power mode.

[0100] Optionally, the fan control module 504 is also used for:

[0101] After controlling the motor to operate in the low-power mode to drive the fan, the method further includes: if the detected smoke detection data indicates the presence of smoke, then controlling the motor to operate in the high-power mode to drive the fan.

[0102] After controlling the motor to operate in the medium power mode or the high power mode to drive the fan, the method further includes: if the detected smoke detection data indicates the presence of smoke, then controlling the motor to operate in a preset power mode to drive the fan.

[0103] The motor power in the preset power mode is greater than the motor power in the high power mode.

[0104] Optionally, the fan control module 504 is also used for:

[0105] After controlling the motor to operate in the high-power mode to drive the fan, the method further includes: after the motor has been running for a third preset period of time, controlling the motor to operate in the medium-power mode to drive the fan, until the detected smoke sensor data is smokeless, then controlling the motor to operate in the low-power mode to drive the fan.

[0106] After controlling the motor to operate according to the preset power mode to drive the fan, the method further includes: after the motor has been running for a third preset period of time, controlling the motor to operate according to the high power mode to drive the fan, until the detected smoke detection data is smoke-free, and then controlling the motor to operate according to the medium power mode to drive the fan.

[0107] The control device for a range hood provided in this embodiment of the invention can execute the control method for a range hood provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects for executing the method. Contents not described in detail in this embodiment can be referred to the descriptions in any method embodiment of the invention.

[0108] Figure 6 A schematic diagram of a control device for a range hood provided in an embodiment of the present invention is shown below. Figure 6 It shows a schematic diagram of the structure of a computer system 12 suitable for implementing the control device of a range hood in the embodiments of the present invention. Figure 6 The control device for the range hood shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments of the present invention. The components of the control device 12 for the range hood 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).

[0109] Bus 18 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. For example, these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0110] The control device 12 of the range hood typically includes a variety of computer-readable media. These media can be any available media that can be accessed by the control device 12 of the range hood, including volatile and non-volatile media, and removable and non-removable media.

[0111] 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 range hood control device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (…). Figure 6 Not shown; usually referred to as a "hard drive"). Although Figure 6 Not shown, 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, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 via one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of the present invention.

[0112] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28. Such program modules 42 include—but are not limited to—an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 42 typically perform the functions and / or methods described in the embodiments of the present invention.

[0113] The range hood control device 12 can also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), and with one or more devices that allow the user to interact with the range hood control device 12, and / or with any device that allows the range hood control device 12 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed via input / output (I / O) interface 22. Furthermore, in this embodiment, the range hood control device 12 and display 24 are not separate entities, but are embedded in a mirror, so that when the display surface of the display 24 is not displayed, the display surface of the display 24 and the mirror surface visually blend together. Moreover, the range hood control device 12 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 20. As shown, network adapter 20 communicates with other modules of the range hood control device 12 via bus 18. It should be understood that although... Figure 6 As not shown, other hardware and / or software modules can be used in conjunction with the range hood control device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0114] The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, such as implementing a range hood control method provided in this embodiment of the invention: acquiring smoke detection data obtained by the smoke detector from the current scene, and acquiring back pressure data obtained by the back pressure detector from the flue of the range hood; determining the type information of the current scene based on the smoke detection data and the back pressure data; determining the working mode of the motor based on the type information of the current scene; and controlling the motor to operate according to the working mode to drive the fan to work.

[0115] This invention also provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to perform a control method for a range hood, the method comprising:

[0116] The method involves acquiring smoke detection data from the smoke detector and back pressure data from the back pressure detector in the range hood's duct; determining the type information of the current scene based on the smoke detection data and the back pressure data; determining the operating mode of the motor based on the type information of the current scene; and controlling the motor to operate according to the operating mode to drive the fan. Of course, the storage medium containing computer-executable instructions provided in this embodiment of the invention is not limited to the methods described above, but can also execute related operations in the range hood control method provided in any embodiment of the invention.

[0117] Based on the above description of the implementation methods, those skilled in the art can clearly understand that the present invention can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0118] It is worth noting that in the above embodiments of the control device for the range hood, the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the scope of protection of the present invention.

[0119] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A control method for a range hood, characterized in that, The range hood includes a smoke detector, a back pressure detector, a motor, and a fan; the method includes: The smoke detector obtains smoke data from the current scene and the back pressure detector obtains back pressure data from the exhaust duct of the range hood. The current scenario type information is determined based on the smoke detection data and the back pressure data, including: if the smoke detection data detected within a first preset time period is smoke-free and the back pressure data is not greater than a first back pressure value, then the current scenario type information is determined to be a low-smoke scenario; if the smoke detection data detected within a first preset time period is smoke-free and the back pressure data is greater than the first back pressure value but not greater than a second back pressure value, then the current scenario type information is determined to be a medium-smoke scenario; wherein the second back pressure value is greater than the first back pressure value; if the smoke detection data detected within a first preset time period is smoke-free and the back pressure data is greater than the second back pressure value within the first preset time period, then the current scenario type information is determined to be a high-smoke scenario. The operating mode of the motor is determined based on the type information of the current scenario; including: when the type information of the current scenario is a low-smoke scenario, the operating mode of the motor is determined to be a low-power mode; when the type information of the current scenario is a medium-smoke scenario, the operating mode of the motor is determined to be a medium-power mode; when the type information of the current scenario is a high-smoke scenario, the operating mode of the motor is determined to be a high-power mode. The motor is controlled to operate in the operating mode to drive the fan.

2. The method according to claim 1, characterized in that, The control of the motor to operate according to the operating mode to drive the fan includes: When the motor is in low-power mode, the motor is controlled to operate in low-power mode to drive the fan. When the motor is in medium power mode, the motor is controlled to operate in medium power mode to drive the fan. When the motor is in high-power mode, the motor is controlled to operate in high-power mode to drive the fan.

3. The method according to claim 2, characterized in that, After controlling the motor to operate in the low-power mode to drive the fan, the method further includes: if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the first back pressure value, then controlling the motor to operate in the medium-power mode to drive the fan. After controlling the motor to operate in the medium power mode to drive the fan to work, the method further includes: if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the second back pressure value, then controlling the motor to operate in the high power mode to drive the fan to work. After controlling the motor to operate in the high-power mode to drive the fan to work, the method further includes: if the smoke detection data detected within the second preset time period is smokeless and the back pressure data is greater than the preset back pressure value, then controlling the motor to operate in the preset power mode to drive the fan to work. The preset back pressure value is greater than the second back pressure value, and the motor power in the preset power mode is greater than the motor power in the high power mode.

4. The method according to claim 2, characterized in that, After controlling the motor to operate in the low-power mode to drive the fan, the method further includes: if the detected smoke detection data indicates the presence of smoke, then controlling the motor to operate in the high-power mode to drive the fan. After controlling the motor to operate in the medium power mode or the high power mode to drive the fan, the method further includes: if the detected smoke detection data indicates the presence of smoke, then controlling the motor to operate in a preset power mode to drive the fan. The motor power in the preset power mode is greater than the motor power in the high power mode.

5. The method according to claim 4, characterized in that, After controlling the motor to operate in the high-power mode to drive the fan, the method further includes: after the motor has been running for a third preset period of time, controlling the motor to operate in the medium-power mode to drive the fan, until the detected smoke sensor data is smokeless, then controlling the motor to operate in the low-power mode to drive the fan. After controlling the motor to operate according to the preset power mode to drive the fan, the method further includes: after the motor has been running for a third preset period of time, controlling the motor to operate according to the high power mode to drive the fan, until the detected smoke detection data is smoke-free, and then controlling the motor to operate according to the medium power mode to drive the fan.

6. A control device for a range hood, applicable to the control method of the range hood according to any one of claims 1-5, characterized in that, The range hood includes a smoke detector, a back pressure detector, a motor, and a fan; the device includes: The data acquisition module is used to acquire smoke detection data obtained by the smoke detector in the current scene, and to acquire back pressure data obtained by the back pressure detector in the flue of the range hood. The information determination module is used to determine the type information of the current scene based on the smoke detection data and the back pressure data; The mode determination module is used to determine the operating mode of the motor based on the type information of the current scenario. The fan control module is used to control the motor to operate according to the working mode to drive the fan.

7. A control device for a range hood, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the control method for the range hood as described in any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the control method for the range hood as described in any one of claims 1 to 5.

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