Control method and equipment for range hood capable of being adjusted to ascend and descend, medium and range hood

Abstract

The invention belongs to the technical field of intelligent household appliances, and particularly relates to a lifting-adjustable range hood control method and device, a medium and a range hood. When a target object is detected, the use height of the target object is obtained, the actual height of the range hood is adjusted based on the use height, and actual oil smoke data and the actual oil suction distance are continuously obtained; based on the pre-stored mapping relation of at least one oil smoke data, at least one oil suction distance and at least one air volume, the target air volume corresponding to the actual oil smoke data and the actual oil suction distance is determined, and the extractor hood is controlled to carry out oil smoke suction according to the target air volume; according to the method, the height of the range hood is automatically adjusted according to the height of the user, the air volume is dynamically adjusted in combination with the real-time oil smoke data and the oil suction distance, intelligent cooperative control over the height and the air volume of the range hood is achieved, and the smoke suction effect and use comfort are improved.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, and in particular to a control method, device, medium, and range hood of an adjustable range hood. Background Art

[0002] Cooking fumes not only affect indoor air quality but also easily cling to walls and furniture, forming difficult-to-clean stains. Long-term inhalation can be harmful to human health. A range hood effectively removes and purifies cooking fumes and odors, ensuring fresh air in the kitchen and improving the quality of life at home.

[0003] Currently, range hoods are typically installed above kitchen stoves, primarily to remove cooking fumes. Their control relies on built-in sensors that detect changes in fume concentration and automatically adjust fan volume, enabling smarter, more efficient, and more convenient fume removal, improving the user experience and kitchen environment.

[0004] However, most existing range hoods control air volume solely by detecting fume concentration. This approach has limitations when dealing with complex and changing cooking scenarios. For example, during stir-frying or high-temperature cooking, large amounts of fume are generated instantly. Relying solely on changes in fume concentration makes it difficult to adjust air volume in a timely and accurate manner. This reduces fume treatment efficiency and impairs extraction effectiveness, resulting in the range hood's inadequate fume handling capabilities for varying cooking intensities. Summary of the Invention

[0005] The present invention provides a range hood control method, device, medium and range hood with adjustable lifting, which are used to solve the problem that the range hood has insufficient ability to handle oil smoke when dealing with different cooking intensities.

[0006] In a first aspect, an embodiment of the present application provides a range hood control method with adjustable lifting, which is applied to a range hood, and the method includes:

[0007] When a target object is detected, obtaining a use height of the target object;

[0008] Based on the usage height, adjusting the actual height of the range hood;

[0009] Continuously acquiring actual oil smoke data and actual oil suction distance, and determining a target air volume corresponding to the actual oil smoke data and the actual oil suction distance based on a pre-stored mapping relationship among at least one oil smoke data, at least one oil suction distance, and at least one air volume;

[0010] The range hood is controlled to extract oil fumes according to the target air volume.

[0011] As an optional embodiment, the range hood is provided with a sensor component;

[0012] When a target object is detected, obtaining the use height of the target object includes:

[0013] When the sensor component detects that the distance between the target object and the range hood is less than a preset distance threshold, the use height of the target object is obtained.

[0014] As an optional embodiment, the range hood is provided with a transmission device;

[0015] Before adjusting the actual height of the range hood based on the usage height, the method further includes:

[0016] Obtaining a corrected height of the range hood;

[0017] The adjusting the actual height of the range hood based on the usage height includes:

[0018] Obtaining an initial height of the range hood, and determining a height difference between the corrected height and the initial height;

[0019] Determining a theoretical adjustment distance corresponding to the use height based on a preset mapping relationship between at least one height and at least one adjustment distance;

[0020] Based on the theoretical adjustment distance, integrating the height difference value, to determine the target adjustment distance of the range hood;

[0021] The transmission device is controlled to move the target adjustment distance to adjust the actual height of the range hood.

[0022] As an optional implementation, the oil fume data includes an oil fume concentration range; the actual oil fume data includes an actual oil fume concentration in the environment where the range hood is located;

[0023] The determining, based on a pre-stored mapping relationship among at least one oil smoke data, at least one oil suction distance, and at least one air volume, of a target air volume corresponding to the actual oil smoke data and the actual oil suction distance includes:

[0024] determining a target concentration range from at least one oil smoke concentration range based on the actual oil smoke concentration;

[0025] The air volume corresponding to the target concentration range and the actual oil suction distance is used as the target air volume.

[0026] As an optional embodiment, the range hood is provided with a fan device;

[0027] The controlling the range hood to extract oil fumes according to the target air volume includes:

[0028] The fan device is driven to control the range hood to extract oil fumes according to the target air volume.

[0029] As an optional implementation, the method further includes:

[0030] Receive adjustment instructions;

[0031] When the adjustment instruction indicates to adjust the height, adjusting the actual height of the range hood according to the adjustment distance corresponding to the adjustment instruction;

[0032] When the adjustment instruction instructs to adjust the air volume, the actual air volume of the range hood is adjusted according to the adjustment air volume corresponding to the adjustment instruction.

[0033] In a second aspect, an embodiment of the present application provides a range hood with adjustable lift, comprising: a range hood body, a controller, and a sensor device, an image acquisition device, a transmission device, and a fan device communicatively connected to the controller;

[0034] The sensing device is used to obtain height information of the target object;

[0035] The image acquisition device is used to collect actual oil smoke data and actual oil suction distance;

[0036] The controller is used to execute the adjustable lift range hood control method as described in the first aspect, to drive the transmission device based on the height information to adjust the actual height of the range hood body, and to drive the fan device based on the actual oil fume data and the actual oil suction distance to adjust the actual air volume of the range hood body.

[0037] In a third aspect, an embodiment of the present application provides a range hood control device capable of adjusting the height of the range hood, comprising:

[0038] An acquisition module, configured to acquire a use height of a target object when a target object is detected;

[0039] An adjustment module, configured to adjust the actual height of the range hood based on the usage height;

[0040] a determination module, configured to continuously acquire actual oil fume data and actual oil suction distance, and determine a target air volume corresponding to the actual oil fume data and the actual oil suction distance based on a pre-stored mapping relationship among at least one oil fume data, at least one oil suction distance, and at least one air volume;

[0041] The control module is used to control the range hood to extract oil fumes according to the target air volume.

[0042] As an optional implementation, the acquisition module is further configured to acquire the usage height of the target object when the sensor component detects that the distance between the target object and the range hood is less than a preset distance threshold.

[0043] As an optional implementation, the acquisition module is further configured to acquire a corrected height of the range hood;

[0044] The adjusting the actual height of the range hood based on the usage height includes:

[0045] The determining module is further configured to obtain an initial height of the range hood and determine a height difference between the corrected height and the initial height;

[0046] The determining module is further configured to determine a theoretical adjustment distance corresponding to the use height based on a preset mapping relationship between at least one height and at least one adjustment distance;

[0047] The determination module is further configured to integrate the height difference value on the basis of the theoretical adjustment distance to determine a target adjustment distance of the range hood;

[0048] The control module is further configured to control the transmission device to move the target adjustment distance to adjust the actual height of the range hood.

[0049] As an optional implementation manner, the determination module is further configured to determine a target concentration range from at least one oil fume concentration range based on the actual oil fume concentration;

[0050] The determination module is further configured to use the target concentration range and the air volume corresponding to the actual oil suction distance as the target air volume.

[0051] As an optional implementation, the control module is further configured to drive the fan device to control the range hood to extract oil fumes according to the target air volume.

[0052] As an optional embodiment, the range hood control device with adjustable lifting function further includes: a receiving module;

[0053] The receiving module is further configured to receive an adjustment instruction;

[0054] The adjustment module is further configured to adjust the actual height of the range hood according to the adjustment distance corresponding to the adjustment instruction when the adjustment instruction indicates to adjust the height;

[0055] The adjustment module is further configured to adjust the actual air volume of the range hood according to the adjusted air volume corresponding to the adjustment instruction when the adjustment instruction indicates to adjust the air volume.

[0056] In a fourth aspect, an embodiment of the present application provides a range hood control device capable of adjusting the height of the range hood, comprising: a receiver, a transmitter, a memory, and a processor;

[0057] A receiver, for receiving instructions and data;

[0058] Transmitter, used to send instructions and data;

[0059] The memory stores computer-executable instructions;

[0060] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the above first aspect and / or various possible implementations of the first aspect.

[0061] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the first aspect above and / or various possible implementation methods of the first aspect.

[0062] In a sixth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the first aspect and / or various possible implementation methods of the first aspect.

[0063] The adjustable range hood control method provided in the present application can dynamically adjust the actual working height of the range hood according to the height of the user who actually uses the range hood, so as to avoid the range hood being positioned too high and reducing the smoke extraction efficiency, and also avoid the range hood being positioned too low and blocking the user's line of sight, thereby hindering the user's use; and the above-mentioned range hood control method can also adjust the air volume in real time based on the actual concentration of oil smoke and the actual working height of the range hood, so as to avoid the fan from continuously running at an excessively high air volume, thereby reducing the operating energy consumption of the range hood, reducing noise, and improving energy utilization efficiency; or avoiding the fan from continuously running at an excessively low air volume, so as to capture oil smoke to the greatest extent and effectively reduce oil smoke leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0065] Figure 1 A flow chart of the control method for a range hood with adjustable lift provided in this application;

[0066] Figure 2 A schematic diagram of the structure of the range hood with adjustable lifting provided in this application;

[0067] Figure 3 A schematic diagram of the structure of the range hood control device with adjustable lifting provided in this application;

[0068] Figure 4 This is a schematic diagram of the structure of the range hood control device with adjustable lifting provided in this application.

[0069] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0070] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0071] As a key device for improving kitchen air quality, range hoods are widely used in home and commercial kitchens. Their main function is to remove oil smoke through a fan system, and after filtering and purification, they are discharged to the outside or circulated back into the room to ensure fresh kitchen air and improve the quality of home life.

[0072] Currently, range hoods are typically installed in a fixed position directly above the stove. Built-in sensors detect changes in fume concentration in real time and automatically adjust the fan volume accordingly, achieving intelligent operation. This control method, based on fume concentration feedback, can meet the fume extraction needs of daily cooking to a certain extent, improving ease of use and energy efficiency, while also enhancing the user's comfort during cooking.

[0073] However, relying solely on the single parameter of fume concentration to adjust air volume has significant limitations. For example, in high-intensity cooking scenarios like stir-frying and frying, fume is generated and diffused rapidly within a short period of time. However, the sensor's response to changes in fume concentration has a certain lag, resulting in the fan being unable to promptly match the required exhaust intensity. This can lead to problems such as incomplete exhaust and fume overflow. This makes it difficult to fully adapt to diverse usage environments, limiting overall fume treatment efficiency and impacting the range hood's performance and user experience in complex cooking scenarios.

[0074] In response to the above problems, the adjustable range hood control method provided in this application uses user height recognition and real-time environmental perception technology to enable the range hood to automatically adjust the body position according to the user's height, and continuously collect oil fume concentration and oil suction distance information during the cooking process. Combined with the preset oil fume data, the mapping relationship between oil suction distance and air volume, the most suitable fan air volume is intelligently matched, thereby realizing dynamic coordinated control of the range hood height and smoking performance, improving the oil fume suction efficiency while enhancing the comfort and intelligence level of human-computer interaction.

[0075] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0076] Figure 1 This is a flow chart of the control method for the range hood with adjustable lifting provided by this application. The execution subject of this embodiment is, for example, the range hood control system. Figure 1 As shown, the method includes:

[0077] S101: When a target object is detected, the use height of the target object is obtained.

[0078] Among them, the target audience is people who use range hoods.

[0079] The target object's usage height is used to indicate the optimal height for the target object to use the range hood.

[0080] When the range hood detects that someone is using it, it activates a height acquisition mechanism to determine the optimal height for that person to use the range hood. This height data is used for automatic adjustments of the range hood (such as height adjustment).

[0081] Due to differences in height, traditional fixed-height range hoods cannot meet the needs of everyone, leading to issues such as obstructed vision, inconvenient operation, and poor smoke extraction. By detecting the height of the target user (i.e., the user of the range hood), the range hood can automatically adjust to the most optimal height for that person, thus avoiding these issues and improving the user experience.

[0082] Specifically, the system first accurately detects the person using the range hood. Once a target object is detected, a height acquisition process is triggered. Upon receiving the signal, the control system calculates the target object's height. This height data is then used in the range hood's automatic adjustment process, enabling it to automatically adjust to the most suitable height for the user, ensuring optimal extraction efficiency.

[0083] For example, when a user approaches and prepares to use a range hood, the presence of the target object (i.e., the user) is detected, and then the user's height relative to the range hood is quickly calculated (i.e., the user is 1.75 meters tall, so the optimal height for the user to use the range hood is 1.6 meters from the ground).

[0084] S102: Adjusting the actual height of the range hood based on the usage height.

[0085] The use height may be a specific height value or a specific height range.

[0086] The actual height can be a specific height value.

[0087] Each use height has its corresponding determined actual height for extracting oil smoke. The use height can be the same as the actual height or can be related to it. One use height has only one corresponding actual height.

[0088] Specifically, based on the usage height information obtained, the actual height of the range hood is adjusted to adapt to operations in different usage scenarios. The usage height here can be a height that is accurate to a specific value, such as 1.6 meters, or a height range with a certain span, such as 1.5 meters to 1.7 meters. The actual height is a specific height value, such as the range hood is finally adjusted to a height of 1.62 meters. Moreover, each usage height corresponds to a uniquely determined actual height. This correspondence may be that the usage height and the actual height are exactly the same, or there may be a specific association rule between the two, such as adding a fixed offset to the usage height to obtain the actual height.

[0089] On the one hand, different users have different heights, and even the same user may have different range hood height requirements in different cooking scenarios. If the range hood has a fixed height, it may not meet the needs of all users or scenarios, resulting in poor extraction efficiency, obstructed vision, or inconvenient operation. On the other hand, by precisely adjusting the actual height of the range hood, it can be ensured that it is always in the optimal working position, improving extraction efficiency, reducing fume escape, and improving kitchen air quality. At the same time, it enhances user comfort and ease of operation, providing users with a better cooking experience.

[0090] For example, if the preset rule is that the actual height equals the operating height plus 0.02 meters, when the operating height is 1.6 meters, the calculated actual height is 1.62 meters. Finally, the control system sends a command to the lifting mechanism, driving it to accurately adjust according to the calculated actual height value, so that the range hood reaches the appropriate height position to meet the user's usage requirements.

[0091] S103: Continuously obtain actual oil fume data and actual oil suction distance, and determine a target air volume corresponding to the actual oil fume data and the actual oil suction distance based on a pre-stored mapping relationship among at least one oil fume data, at least one oil suction distance, and at least one air volume.

[0092] Among them, oil fume data is a series of quantitative information reflecting the characteristics of oil fume during cooking.

[0093] The oil suction distance refers to the vertical or spatial straight-line distance between the actual height of the range hood's air inlet and the source of oil smoke during cooking (such as the stove).

[0094] The system continuously collects data on actual cooking fumes and records the actual distance between the range hood and the source of the fumes. Furthermore, the system pre-stores a mapping between fumes data, distance, and air volume. By comparing and analyzing the real-time data and distance with this pre-stored mapping, the system determines the corresponding target air volume, providing precise air volume adjustment for the range hood.

[0095] First, the oil smoke generated in different cooking scenarios varies greatly, and a fixed air volume setting cannot meet diverse needs. By continuously obtaining actual oil smoke data and actual oil suction distance, the requirements of the current cooking environment for the range hood can be more accurately reflected. Secondly, the pre-stored three-way mapping relationship is obtained through a large number of experiments and data analysis, and is scientific and reliable. Determining the target air volume based on this mapping relationship can avoid energy waste due to excessive air volume, or problems such as incomplete oil smoke suction due to too little air volume, thereby improving the efficiency of the range hood and providing users with a better cooking environment. It also helps to improve the product's intelligence level and user experience.

[0096] For example, when the actual oil fume data obtained at this moment is high and the actual oil suction distance is 70 cm, the control system will perform a quick comparison and analysis based on the pre-stored mapping relationship, thereby determining that the target air volume that matches the current actual oil fume data and the actual oil suction distance is 18 cubic meters / minute, and immediately adjust the operating air volume of the range hood to the target value to achieve efficient oil fume suction and exhaust.

[0097] S104: Control the range hood to extract oil fumes according to the target air volume.

[0098] After obtaining the target air volume value that matches the current actual oil fume data and oil suction distance, the range hood control system issues a command to make the range hood adjust its own operating state and accurately set the air volume when extracting oil fume to the target air volume, so as to achieve efficient and reasonable removal of oil fume generated during the cooking process.

[0099] On the one hand, because different cooking scenarios generate varying intensities and volumes of oil smoke, operating the range hood at a fixed air volume can waste energy and increase unnecessary power consumption when oil smoke is light. However, when oil smoke is heavy, insufficient air volume can prevent the smoke from being exhausted in a timely manner, polluting the kitchen environment and impacting user health. On the other hand, operating the range hood at a target air volume allows the range hood to more intelligently adapt to various cooking situations, improving its efficiency and performance and providing a more comfortable user experience.

[0100] The adjustable range hood control method provided in the embodiment of the present application obtains the usage height of the target object when a target object is detected, adjusts the actual height of the range hood based on the usage height, continuously obtains actual oil fume data and actual oil suction distance, and determines the target air volume corresponding to the actual oil fume data and the actual oil suction distance based on a pre-stored mapping relationship of at least one oil fume data, at least one oil suction distance and at least one air volume, and controls the range hood to extract oil fume according to the target air volume; the method automatically adjusts the range hood height according to the user's height, and dynamically adjusts the air volume in combination with real-time oil fume data and oil suction distance, thereby realizing intelligent coordinated control of the range hood height and air volume, thereby improving the smoking effect and usage comfort.

[0101] As a possible implementation method, a sensor component is provided on the range hood; when a target object is detected, the use height of the target object is obtained. Specific implementation methods include:

[0102] When the sensor component detects that the distance between the target object and the range hood is less than a preset distance threshold, the use height of the target object is obtained.

[0103] The sensor component is used to detect the distance between the target object and the range hood. The sensor component can be an infrared sensor or an ultrasonic sensor.

[0104] When a stove, cooking pot, or other object in use enters the sensor's detection range, the sensor immediately activates distance detection. The system has a pre-set distance threshold, determined through extensive experimentation and analysis of actual usage scenarios, to ensure that the target's height information is captured within an appropriate range.

[0105] Once the sensor component detects that the distance between the target object and the range hood is less than the preset distance threshold, it indicates that the target object is within the effective range for accurately determining the operating height. At this point, the sensor component uses a more precise measurement method, combining data from multiple sensors to quickly and accurately determine the target object's operating height.

[0106] Optionally, it is determined that the time duration during which the distance between the target object and the range hood is less than a preset distance threshold reaches a preset time duration, and the use height of the target object is obtained.

[0107] The system continuously detects the distance between the target object and the range hood. Only when the distance is less than the preset distance threshold for a predetermined period of time will the subsequent operation be triggered. This effectively avoids situations where the user is only briefly approaching the stove to pick up items, and prevents the range hood from being accidentally activated due to such approach without cooking intentions, ensuring that the range hood can be started accurately when it is really needed.

[0108] As a possible implementation, the range hood is provided with a transmission device; before adjusting the actual height of the range hood based on the usage height, the method further includes:

[0109] Get the corrected height of the range hood;

[0110] Adjust the actual height of the range hood based on the usage height, including:

[0111] Obtaining the initial height of the range hood and determining the height difference between the corrected height and the initial height;

[0112] Determining a theoretical adjustment distance corresponding to the height based on a preset mapping relationship between at least one height and at least one adjustment distance;

[0113] Based on the theoretical adjustment distance, the height difference is integrated to determine the target adjustment distance of the range hood;

[0114] The transmission device is controlled to move the target adjustment distance to adjust the actual height of the range hood.

[0115] Due to differences in actual user kitchen environments, the installation height of range hoods is not the same. In order to make the range hood adapt to different kitchens and achieve optimal performance, the installation height needs to be corrected according to the specific environment of the user's home. After completing the installation of the range hood, the installer will accurately input the corrected height determined based on the user's kitchen environment into the range hood operation interface, thereby obtaining the corrected height of the range hood for this user's kitchen.

[0116] First, the initial height of the range hood must be obtained. This initial height can be the set height during installation or the most recent normal adjustment. By comparing this with the previously obtained corrected height, the difference between the two is determined. This height difference reflects the degree of deviation between the range hood's current actual height and the ideal height.

[0117] Based on a pre-set mapping relationship between at least one height and at least one adjustment distance, the theoretical adjustment distance corresponding to the operating height is determined. This mapping relationship was derived through extensive experimentation and data analysis. It shows the distance the range hood needs to be adjusted to achieve the best smoke exhaust effect at different operating heights. For example, when the operating height is low, the range hood may need to be lowered a certain distance to get closer to the source of the oil smoke; when the operating height is high, the range hood may need to be raised. By querying this mapping relationship table, the theoretical adjustment distance corresponding to the operating height can be quickly and accurately obtained.

[0118] Based on the theoretical adjustment distance, the height difference calculated previously is integrated to determine the target adjustment distance for the range hood. This eliminates any discrepancies between the range hood's actual height and the theoretical design height, making the adjusted height more accurate. For example, if the theoretical adjustment distance is 10 cm upward, but the height difference indicates the range hood's current actual height is 2 cm lower than the theoretical height, the target adjustment distance is 8 cm upward.

[0119] Finally, based on the determined target adjustment distance, the transmission device is controlled to move the corresponding distance to adjust the actual height of the range hood. The control system sends instructions to the transmission device's motor, controlling the direction and number of rotations, thereby driving the lead screw or chain to move the range hood up and down along the preset track. During the movement process, the position sensor installed on the transmission device also provides real-time feedback on the movement distance, ensuring that the range hood accurately moves to the target height and achieving precise height adjustment for optimal smoke extraction performance.

[0120] As a possible implementation method, the oil fume data includes an oil fume concentration range; the actual oil fume data includes an actual oil fume concentration in the environment where the range hood is located; based on a pre-stored mapping relationship between at least one oil fume data, at least one oil suction distance, and at least one air volume, a target air volume corresponding to the actual oil fume data and the actual oil suction distance is determined. Specific implementation methods include:

[0121] determining a target concentration range from at least one oil smoke concentration range based on the actual oil smoke concentration;

[0122] The air volume corresponding to the target concentration range and the actual oil suction distance is used as the target air volume.

[0123] In the intelligent control system of the range hood, the oil fume data includes the oil fume concentration range. The oil fume concentration range is set after a large number of experiments and actual scene investigations. It covers the oil fume concentration range that may appear in different cooking situations. For example, the low concentration range may correspond to simple steaming operations, when less oil fume is generated; the medium concentration range may be suitable for ordinary frying, with a moderate amount of oil fume; the high concentration range often appears in cooking scenarios such as stir-frying that produce a large amount of oil fume. The actual oil fume data refers to the real oil fume condition data of the environment in which the range hood is located during its actual operation. The oil fume concentration is obtained through real-time detection by a high-precision oil fume sensor installed on the range hood, which can accurately reflect the actual concentration of oil fume in the current kitchen.

[0124] The pre-stored mapping between at least one fume data point, at least one oil suction distance, and at least one air volume was established through extensive experimentation and data analysis. During the experiments, researchers simulated various cooking scenarios, varying two key factors: fume concentration and oil suction distance (the distance between the range hood's air intake and the cooking pot). They also recorded the air volume required to achieve optimal fume removal under each combination. Through repeated testing and optimization, a comprehensive and accurate mapping table was ultimately established.

[0125] Once the range hood receives the actual oil fume concentration from the actual oil fume data, it initiates the process of determining the target air volume. First, based on the actual oil fume concentration, the target concentration range is determined by accurately matching it with at least one pre-stored oil fume concentration range. For example, if the actual detected oil fume concentration is 3 mg / m³, and the preset oil fume concentration range is 0-2 mg / m³ for low concentration and 2-5 mg / m³ for medium concentration, then the target concentration range is determined to be the medium concentration range.

[0126] After determining the target concentration range, the corresponding air volume is then found from the three-way mapping relationship, combined with the actual oil suction distance. This air volume value that enables the range hood to achieve optimal smoke exhaust efficiency is used as the target air volume. For example, if the target concentration range is medium and the actual oil suction distance is 50 cm, the corresponding target air volume may be 15 cubic meters per minute according to the mapping relationship table.

[0127] As a possible implementation method, a fan device is provided on the range hood; the range hood is controlled to extract oil fumes according to a target air volume. Specific implementation methods include:

[0128] Drive the fan device to control the range hood to extract oil fumes according to the target air volume.

[0129] Once the target air volume is determined, the range hood needs to be driven by the fan unit to extract oil fumes according to the target air volume. The control system sends a corresponding control signal to the motor to adjust the motor speed based on the target air volume. The motor speed is directly related to the suction generated by the fan unit. The higher the speed, the faster the impeller rotates, the greater the suction generated, and the corresponding increase in air volume. Conversely, the lower the speed, the smaller the suction and air volume. By accurately adjusting the motor speed in real time, the fan unit can dynamically adjust the suction force, thereby precisely controlling the air volume to achieve the pre-set target air volume.

[0130] For example, when stir-frying produces a large amount of oil smoke, the control system will quickly increase the motor speed and increase the suction force of the fan device, so that the range hood can quickly extract the oil smoke with a larger air volume; when performing simple steaming operations and there is less oil smoke, the control system will reduce the motor speed and reduce the air volume to achieve energy-saving operation.

[0131] As a possible implementation method, specific implementation methods include:

[0132] Receive adjustment instructions;

[0133] When the adjustment instruction indicates to adjust the height, adjust the actual height of the range hood according to the adjustment distance corresponding to the adjustment instruction;

[0134] When the adjustment instruction indicates to adjust the air volume, the actual air volume of the range hood is adjusted according to the adjustment air volume corresponding to the adjustment instruction.

[0135] In an intelligent range hood system, receiving adjustment commands is the first step in enabling intelligent adjustment functions. Range hoods can receive adjustment commands in a variety of ways. First, they are equipped with an intuitive and convenient control panel with dedicated buttons or touch areas. Users can simply press the corresponding button or slide the touch area to send adjustment commands directly to the range hood. For example, if the user feels the range hood height is not suitable, pressing the height adjustment button will trigger the height adjustment command. Second, with the development of smart home technology, range hoods can also connect with smart devices such as mobile phones. Users simply need to install the corresponding smart home application on their mobile phone and use the application's user interface to remotely send adjustment commands to the range hood. Third, the range hood also has voice recognition capabilities. Users simply need to speak voice commands such as "Raise the range hood" or "Increase the air volume" and the range hood will accurately recognize and receive these commands. The range hood has a dedicated command receiving module that can quickly and accurately identify command signals sent from various channels and convert them into processable digital information.

[0136] When the range hood receives an adjustment command instructing it to adjust its height, it immediately initiates the height adjustment process. First, the system parses the adjustment command and determines the corresponding adjustment distance. This adjustment distance is set based on user needs and preset rules. For example, a user may wish to raise the range hood by 10 cm or lower it by 5 cm. Once the adjustment distance is determined, the range hood's transmission mechanism begins to function. The transmission mechanism typically rotates based on a control signal from the system, raising or lowering the overall height of the range hood. During the adjustment process, the range hood is equipped with an internal position sensor that detects the actual height change of the range hood in real time and feeds this data back to the control system. The control system compares this feedback data with the target adjustment distance. When the actual height reaches the target, the control system immediately stops the motor to ensure that the range hood is accurately adjusted to the specified height to meet the user's needs.

[0137] When an adjustment command instructs for air volume adjustment, the range hood adjusts the actual air volume according to the corresponding process. Similarly, the system first analyzes the command to determine the corresponding air volume adjustment. This adjustment could be an increase, such as from 12 cubic meters per minute to 15 cubic meters per minute, or a decrease, such as from 18 cubic meters per minute to 15 cubic meters per minute. Once the adjustment air volume is determined, the range hood's fan unit becomes the key component for adjustment. The motor in the fan unit is the core of air volume control. Based on the target air volume, the control system sends control signals to the motor, adjusting the motor speed. The motor speed is closely related to the air volume generated by the fan. Higher speeds generate greater suction and higher air volume; conversely, lower speeds reduce air volume. During the adjustment process, the range hood's internal wind speed sensor detects the actual wind speed in real time and converts this wind speed data into air volume information, which is fed back to the control system. The control system compares the actual air volume feedback with the target air volume and continuously adjusts the motor speed to gradually bring the actual air volume closer to the target air volume. When the actual air volume reaches the target air volume, the control system maintains the current motor speed to ensure that the range hood extracts oil fumes at a stable air volume, providing users with a comfortable cooking environment.

[0138] Figure 2 This is a schematic diagram of the adjustable range hood structure provided in this application. Figure 2 As shown, a range hood with adjustable lifting function includes: a range hood body, a controller, and a sensor device, an image acquisition device, a transmission device and a fan device connected to the controller;

[0139] The sensing device is used to obtain the height information of the target object;

[0140] The image acquisition device is used to collect actual oil smoke data and actual oil suction distance;

[0141] The controller is used to execute the adjustable lift range hood control method provided above, to drive the transmission device based on the height information to adjust the actual height of the range hood body, and to drive the fan device based on the actual oil fume data and the actual oil suction distance to adjust the actual air volume of the range hood body.

[0142] A range hood with adjustable height includes a main body, a controller, a sensor, an image acquisition device, a transmission mechanism, and a fan. These components work together to achieve intelligent adjustment of the range hood's height and air volume, creating a more efficient, convenient, and comfortable kitchen environment for users.

[0143] The sensing device is used to obtain information about the height of a target object, typically a stove or cookware user. Using high-precision sensors such as laser rangefinders or ultrasonic sensors, the sensing device can accurately measure the relative height between the target object and the range hood in real time. For example, when a user switches to a pot of a different height for cooking, the sensing device quickly detects the height change and transmits this information to the controller, enabling timely adjustments to maintain the range hood at the optimal operating height and ensure efficient fume extraction.

[0144] Image acquisition equipment, using high-definition cameras and other devices, can collect real-time data on actual oil fume and actual oil suction distance. To collect actual oil fume data, the image acquisition equipment can analyze captured oil fume images and utilize advanced image processing algorithms to identify key information such as oil fume concentration and diffusion range. For example, by analyzing characteristics such as the color and transparency of the oil fume in the image, the oil fume concentration can be determined. As for the actual oil suction distance, the image acquisition equipment can locate and measure key objects in the captured image, such as the stove, pots, and range hood intake, to calculate the actual distance between the range hood intake and the cooking source.

[0145] The controller implements specific control methods for adjustable range hoods. Based on height information captured by the sensor, the controller performs precise calculations and analysis, then sends corresponding drive instructions to the actuator to adjust the actual height of the range hood. For example, if the controller determines that the range hood needs to be raised based on the height information, it smoothly raises the range hood to the appropriate position.

[0146] At the same time, the controller intelligently adjusts the fan's actual air volume based on the actual fume data and actual oil suction distance captured by the image acquisition device. It combines pre-stored mappings between fume data, suction distance, and air volume to determine the target air volume required based on the current actual fume data and suction distance. It then sends control instructions to the fan, driving the motor in the fan to adjust its speed, thereby achieving precise regulation of the actual air volume. Through the controller's intelligent control, the range hood automatically adjusts its operating state to suit different cooking conditions, achieving optimal fume extraction.

[0147] Figure 3 This is a schematic diagram of the structure of the range hood control device with adjustable lifting provided in this application. Figure 3 As shown, the range hood control device 300 with adjustable lifting provided in this embodiment includes:

[0148] An acquisition module 301 is configured to acquire a use height of a target object when the target object is detected;

[0149] An adjustment module 302 is used to adjust the actual height of the range hood based on the usage height;

[0150] The determination module 303 is configured to continuously obtain actual oil smoke data and actual oil suction distance, and determine a target air volume corresponding to the actual oil smoke data and the actual oil suction distance based on a pre-stored mapping relationship between at least one oil smoke data, at least one oil suction distance, and at least one air volume;

[0151] The control module 304 is used to control the range hood to extract oil fumes according to the target air volume.

[0152] As an optional implementation, the acquisition module 301 is further configured to acquire the usage height of the target object when the sensor component detects that the distance between the target object and the range hood is less than a preset distance threshold.

[0153] As an optional implementation, the acquisition module 301 is further configured to acquire a corrected height of the range hood;

[0154] Adjust the actual height of the range hood based on the usage height, including:

[0155] The determination module 303 is further configured to obtain an initial height of the range hood and determine a height difference between the corrected height and the initial height;

[0156] The determination module 303 is further configured to determine a theoretical adjustment distance corresponding to the height based on a preset mapping relationship between at least one height and at least one adjustment distance;

[0157] The determination module 303 is further configured to integrate the height difference value based on the theoretical adjustment distance to determine the target adjustment distance of the range hood;

[0158] The control module 304 is further configured to control the transmission device to move the target adjustment distance so as to adjust the actual height of the range hood.

[0159] As an optional implementation, the determination module 304 is further configured to determine a target concentration range from at least one oil smoke concentration range based on the actual oil smoke concentration;

[0160] The determination module 304 is further configured to use the air volume corresponding to the target concentration range and the actual oil suction distance as the target air volume.

[0161] As an optional implementation, the control module 304 is further configured to drive a fan device to control the range hood to extract oil fumes according to a target air volume.

[0162] As an optional embodiment, the range hood control device capable of adjusting the lifting and lowering thereof further includes: a receiving module 305;

[0163] Receiving module 305, for receiving an adjustment instruction;

[0164] The adjustment module 302 is further configured to adjust the actual height of the range hood according to the adjustment distance corresponding to the adjustment instruction when the adjustment instruction indicates to adjust the height;

[0165] The adjustment module 302 is further configured to adjust the actual air volume of the range hood according to the adjusted air volume corresponding to the adjustment instruction when the adjustment instruction indicates to adjust the air volume.

[0166] Figure 4 This is a schematic diagram of the structure of the range hood control device with adjustable lifting provided in this application. Figure 4 As shown, the present application provides a range hood control device with adjustable lifting, and the range hood control device 400 with adjustable lifting includes: a receiver 401, a transmitter 402, a processor 403 and a memory 404.

[0167] Receiver 401, for receiving instructions and data;

[0168] Transmitter 402, used to send instructions and data;

[0169] Memory 404, for storing computer-executable instructions;

[0170] The processor 403 is configured to execute the computer-executable instructions stored in the memory 404 to implement the steps of the method for controlling a range hood with adjustable lift. For details, please refer to the description of the method for controlling a range hood with adjustable lift in the embodiment.

[0171] Optionally, the memory 404 may be independent or integrated with the processor 403 .

[0172] When the memory 404 is independently provided, the electronic device further includes a bus for connecting the memory 404 and the processor 403 .

[0173] The present application also provides a computer-readable storage medium, which stores computer-executable instructions. When a processor executes the computer-executable instructions, it implements the adjustable lift range hood control method executed by the above-mentioned adjustable lift range hood control device.

[0174] Those skilled in the art will appreciate that all or some of the steps, systems, and functional modules / units in the methods, systems, and devices disclosed above may be implemented as software, firmware, hardware, or any combination thereof. In hardware implementations, the division between functional modules / units described above does not necessarily correspond to the division between physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transient media). As is well known to those skilled in the art, the term computer storage media encompasses both volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those skilled in the art, communication media typically embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0175] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the scope of protection of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for controlling a range hood with adjustable lifting, characterized in that: Applied to a range hood, the method comprises: When a target object is detected, obtaining a use height of the target object; Based on the usage height, adjusting the actual height of the range hood; Continuously acquiring actual oil smoke data and actual oil suction distance, and determining a target air volume corresponding to the actual oil smoke data and the actual oil suction distance based on a pre-stored mapping relationship among at least one oil smoke data, at least one oil suction distance, and at least one air volume; The range hood is controlled to extract oil fumes according to the target air volume.

2. The method according to claim 1, characterized in that The range hood is provided with a sensor component; When a target object is detected, obtaining the use height of the target object includes: When the sensor component detects that the distance between the target object and the range hood is less than a preset distance threshold, the use height of the target object is obtained.

3. The method according to claim 1, characterized in that The range hood is provided with a transmission device; Before adjusting the actual height of the range hood based on the usage height, the method further includes: Obtaining a corrected height of the range hood; The adjusting the actual height of the range hood based on the usage height includes: Obtaining an initial height of the range hood, and determining a height difference between the corrected height and the initial height; Determining a theoretical adjustment distance corresponding to the use height based on a preset mapping relationship between at least one height and at least one adjustment distance; Based on the theoretical adjustment distance, integrating the height difference value, to determine the target adjustment distance of the range hood; The transmission device is controlled to move the target adjustment distance to adjust the actual height of the range hood.

4. The method according to claim 2, characterized in that The oil fume data includes the oil fume concentration range; the actual oil fume data includes the actual oil fume concentration of the environment where the range hood is located; The determining, based on a pre-stored mapping relationship among at least one oil smoke data, at least one oil suction distance, and at least one air volume, of a target air volume corresponding to the actual oil smoke data and the actual oil suction distance includes: determining a target concentration range from at least one oil smoke concentration range based on the actual oil smoke concentration; The air volume corresponding to the target concentration range and the actual oil suction distance is used as the target air volume.

5. The method according to claim 1, wherein The range hood is provided with a fan device; The controlling the range hood to extract oil fumes according to the target air volume includes: The fan device is driven to control the range hood to extract oil fumes according to the target air volume.

6. The method according to claim 1, characterized in that The method further comprises: Receive adjustment instructions; When the adjustment instruction indicates to adjust the height, adjusting the actual height of the range hood according to the adjustment distance corresponding to the adjustment instruction; When the adjustment instruction instructs to adjust the air volume, the actual air volume of the range hood is adjusted according to the adjustment air volume corresponding to the adjustment instruction.

7. A range hood with adjustable lifting function, characterized in that: include: A range hood body, a controller, and a sensor device, an image acquisition device, a transmission device, and a fan device in communication with the controller; The sensing device is used to obtain height information of the target object; The image acquisition device is used to collect actual oil smoke data and actual oil suction distance; The controller is used to execute the adjustable lift range hood control method as described in any one of claims 1-6, to drive the transmission device based on the height information to adjust the actual height of the range hood body, and to drive the fan device based on the actual oil fume data and the actual oil suction distance to adjust the actual air volume of the range hood body.

8. A range hood control device with adjustable lifting, characterized in that: include: An acquisition module, configured to acquire a use height of a target object when a target object is detected; An adjustment module, configured to adjust the actual height of the range hood based on the usage height; a determination module, configured to continuously acquire actual oil fume data and actual oil suction distance, and determine a target air volume corresponding to the actual oil fume data and the actual oil suction distance based on a pre-stored mapping relationship among at least one oil fume data, at least one oil suction distance, and at least one air volume; The control module is used to control the range hood to extract oil fumes according to the target air volume.

9. A range hood control device with adjustable lifting, comprising: Receiver, transmitter, memory, processor; A receiver, for receiving instructions and data; Transmitter, used to send instructions and data; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 6 when executed by a processor.

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