A control method and control device of an extractor hood

By detecting user characteristics, the range hood intelligently adjusts its operating mode and music playback, solving the problem of insufficient intelligence in existing range hoods and achieving a more intelligent and user-friendly experience and improved smoke extraction efficiency.

CN112539440BActive Publication Date: 2026-07-10QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD
Filing Date
2020-12-03
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing range hoods lack sufficient intelligence and fail to intelligently control their operation based on user information characteristics, resulting in a poor user experience.

Method used

By detecting the facial images and voice information of target users in the area where the range hood is located, information on gender, age, and emotional characteristics is obtained. Based on this information, the target operating mode of the range hood is determined, and the range hood is controlled to operate at the corresponding speed and music playback mode.

Benefits of technology

It achieves matching of range hood operating modes with user characteristic information, improves user experience, enhances range hood smoke extraction efficiency and human-computer interaction, and provides a diverse and enjoyable cooking experience.

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Abstract

The application discloses a control method of an extractor hood, which comprises the following steps: detecting the face image and voice information of a target user in a target area where the extractor hood is located; obtaining user characteristic information of the target user, wherein the user characteristic information comprises gender information, age information and emotional characteristic information; determining a target operation mode of the extractor hood based on the user characteristic information; and controlling the extractor hood to operate in the target operation mode. The control method of the extractor hood disclosed by the application matches the operation mode of the extractor hood with the user characteristic information of the target user, diversifies the functions of the extractor hood, realizes the interaction between the user and the extractor hood, provides the user with diversified pleasant cooking experience, and helps to improve the smoke exhaust efficiency of the extractor hood. The application further discloses a control device applying the control method of the extractor hood.
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Description

Technical Field

[0001] This invention belongs to the field of kitchen household appliance technology, specifically, it relates to a control method and control device for a range hood. Background Technology

[0002] Cooking is a complex and systematic process of transforming ingredients into food, making it more delicious, visually appealing, and aromatic, and bringing physical and mental pleasure. In traditional Chinese cooking, frying, stir-frying, boiling, and deep-frying constitute a large proportion, generating a significant amount of oil fumes. This not only pollutes the kitchen environment but also affects people's health and mood. Therefore, range hoods have become an indispensable kitchen appliance in modern homes.

[0003] With the advent of the smart home era, people have more diverse and intelligent requirements for home appliances. The kitchen is an indispensable living environment in daily life, but traditional range hoods can only protect users from the harm of kitchen fumes. The intelligence of existing range hoods is mainly reflected in the range hood's functions themselves, or simply by adding Internet functions. They do not intelligently control the operation of the range hood according to user information characteristics or needs, nor do they truly achieve real-time interaction between users and range hoods.

[0004] For example, a Chinese patent discloses a smart screen range hood, which includes a range hood body and a smart screen installed on the range hood body. It also includes a controller, a communication module, and an audio output module. The smart screen, the communication module, and the audio output module are connected to the controller. The range hood is equipped with an intelligent networked smart screen and Internet functions to provide users with diversified service functions. However, it does not intelligently control the operation of the fume based on the user's own characteristics.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a control method for a range hood, so as to match the operating mode of the range hood with the user characteristic information of the target user and improve the user experience.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0008] A method for controlling a range hood includes:

[0009] Detect facial images and voice information of target users within the target area where the range hood is located;

[0010] Obtain user characteristic information of the target user, including: gender information, age information and emotional characteristic information;

[0011] Based on user characteristic information, determine the target operating mode of the range hood;

[0012] Control the range hood to operate in the target mode.

[0013] Furthermore, the system detects the target user's facial image to obtain the user's feature information, so that the range hood's operating speed matches the user's feature information, and controls the range hood to operate at the corresponding speed.

[0014] Furthermore, based on user characteristic information, the system prompts the target user whether the range hood should automatically execute the recommended speed and detects the target user's voice information; if the detection result is yes, the range hood is controlled to run at the recommended speed; if the detection result is no, the current operating state is maintained.

[0015] Furthermore, gender, age, and emotional characteristics are used as indicators to determine the target operating mode of the range hood. Different levels are assigned to each indicator, and the ABC classification weighting method is used to determine the weight and level proportion of each indicator, thus determining the final evaluation result E, which is used to prompt the target user whether the range hood should operate at the corresponding speed.

[0016] Furthermore, E = W * w i +X*x j +Y*y k The weights for gender, age, and emotional characteristics are W, X, and Y, respectively, with W+X+Y=1; i x represents the percentage of indicator levels corresponding to gender information. j The percentage of indicator levels corresponding to age information, y k The percentage of indicator levels corresponding to emotional characteristics.

[0017] Furthermore, gender information is divided into two levels: male or female. The proportion of indicator levels affecting the target operating mode of the range hood is w1 and w2, where w1+w2=1.

[0018] Age information is divided into at least four levels according to age range. The percentage of the indicator levels that affect the target operating mode of the range hood are x1, x2, x3 and x4, where x1+x2+x3+x4=1;

[0019] Emotional characteristics are divided into at least four levels: joy, anger, sorrow, and happiness. The percentage of the indicator levels that affect the target operating mode of the range hood are y1, y2, y3, and y4, where y1+y2+y3+y4=1.

[0020] Furthermore, a first set of songs corresponding to the gender information of the target user is determined;

[0021] Based on the target user's age information, determine the second set of songs corresponding to their age information from the first set of songs;

[0022] Based on the emotional characteristics of the target user, a target song set corresponding to their emotional characteristics is determined from the second song set. The target song set includes multiple songs.

[0023] Furthermore, based on user characteristic information, the system prompts the target user whether to automatically play songs and detects the target user's voice information; if the detection result is yes, songs from the target song set are played randomly; if the detection result is no, the current operating state is maintained.

[0024] Another object of the present invention is to provide a control device for a range hood, so as to achieve the purpose of controlling the operation of the range hood based on user characteristic information.

[0025] A control device for a range hood, employing the aforementioned control method for a range hood, includes:

[0026] The detection module is used to detect the facial images and voice information of the target user;

[0027] The acquisition module receives the face image of the target user detected by the detection module and acquires user feature information, including gender information, age information and emotional feature information.

[0028] The analysis module determines the target operating mode of the range hood based on user characteristic information;

[0029] The control module controls the range hood to operate in the target operating mode based on the target operating mode determined by the analysis module and / or the voice information of the target user.

[0030] Furthermore, the detection module is connected to both the acquisition module and the control module, and the analysis module is also connected to both the acquisition module and the control module. The control module is used to control the operating speed of the range hood and / or match the songs played with the user's characteristic information.

[0031] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0032] 1. Match the range hood's operating mode with the target user's user characteristics to diversify the range hood's functions, enable interaction between the user and the range hood, provide the user with a diverse and enjoyable cooking experience, and help improve the range hood's smoke extraction efficiency.

[0033] 2. The operating speed of the range hood is matched with the user's characteristic information. Based on the target user's gender, age range, and emotional characteristics in the current state, the target operating speed of the range hood is determined through comprehensive evaluation. This enables information interaction between the target user and the range hood, making the range hood more intelligent and user-friendly.

[0034] 3. By comprehensively considering the gender, age, and emotional characteristics of the target users, different songs are recommended to them. Compared with the relatively crude random playback in the existing solutions, this truly realizes human-computer interaction and makes intelligent and targeted music recommendations based on the individual differences of different users.

[0035] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0036] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0037] Figure 1 This is a flowchart illustrating a control method for a range hood according to an embodiment of the present invention;

[0038] Figure 2 This is a flowchart illustrating a control method for a range hood according to another embodiment of the present invention;

[0039] Figure 3 This is a flowchart illustrating a control method for a range hood according to another embodiment of the present invention;

[0040] Figure 4 This is a flowchart illustrating a control method for a range hood according to another embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of a control device for a range hood in an embodiment of the present invention.

[0042] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] like Figures 1 to 5 As shown, this embodiment provides a method for controlling a range hood, including: detecting the facial image and voice information of a target user within the target area where the range hood is located; acquiring user feature information of the target user, wherein the user feature information includes: gender information, age information, and emotional feature information; determining the target operating mode of the range hood based on the user feature information; and controlling the range hood to operate in the target operating mode.

[0047] By controlling the range hood in accordance with the above methods, the operating mode of the range hood is matched with the user characteristics information of the target user. This not only diversifies the functions of the range hood and enables interaction between the user and the range hood, providing the user with a diverse and enjoyable cooking experience, but also helps to improve the smoke extraction efficiency of the range hood.

[0048] Example 1

[0049] like Figure 2 As shown, in this embodiment, the facial image of the target user is detected to obtain the user's characteristic information, so that the operating speed of the range hood is matched with the user's characteristic information, and the range hood is controlled to operate at the corresponding speed. Matching the operating speed of the range hood with the user's characteristic information, based on the target user's gender, age range, and emotional characteristics in the current state, determines the target operating speed of the range hood, realizing information interaction between the target user and the range hood, making the range hood more intelligent and user-friendly.

[0050] In this embodiment, the operating speed of the range hood is controlled by the fan motor. The fan motor speed is divided into three levels: soft speed, medium speed, and high speed. The operating speed of the fan motor is matched with the user's characteristic information, and the fan motor is controlled to operate at the level that matches the user's characteristic information among the soft speed, medium speed, and high speed.

[0051] like Figure 2 As shown in this embodiment, based on user characteristic information, the system prompts the target user whether the range hood should automatically execute the recommended speed, and detects the target user's voice information. If the detection result is yes, the range hood is controlled to run at the recommended speed; if the detection result is no, the current operating state is maintained. Prompting the target user to execute the corresponding speed based on user characteristic information allows for real-time interaction between the target user and the range hood. This not only improves the target user's user experience and changes their preconceived notions about range hoods, and even about cooking, but also enhances the working efficiency of the range hood.

[0052] In this embodiment, the gender information includes two levels: male or female. If the target user is detected as male, it is recommended that the target user allow the range hood to automatically run at the high speed level; if the target user is detected as female, it is recommended that the target user allow the range hood to automatically run at the medium speed or gentle speed level.

[0053] In this embodiment, the age information includes at least four levels: Level 1 is for target users older than 55; Level 2 is for target users younger than or equal to 55 but older than 25; Level 3 is for target users younger than or equal to 25 but older than 14; and Level 4 is for target users younger than or equal to 14. If the target user's age is detected as Level 1, it is recommended that the target user allow the range hood to automatically operate at a gentle speed to prevent noise from the range hood operating at medium or high speed from affecting the elderly person's mood. If the target user's age is detected as Level 2, it is recommended that the target user allow the range hood to automatically operate at a medium speed. If the target user's age is detected as Level 3, it is recommended that the target user allow the range hood to automatically operate at a high speed. If the target user's age is detected as Level 4, the range hood cannot be started to ensure the safety of the young target user.

[0054] In this embodiment, the emotional characteristic information includes at least four levels: joy, anger, sorrow, and happiness. If the detected emotional characteristic of the target user is joy, it is recommended that the target user allow the range hood to automatically run at high speed; if the detected emotional characteristic of the target user is anger, it is recommended that the target user allow the range hood to automatically run at gentle speed; if the detected emotional characteristic of the target user is sorrow, it is recommended that the target user allow the range hood to automatically run at gentle speed; and if the detected emotional characteristic of the target user is happiness, it is recommended that the target user allow the range hood to automatically run at medium speed.

[0055] Using the above-mentioned range hood control method, the target user's gender, age, and emotional characteristics are divided into different levels. Based on the different levels corresponding to different indicators, the target user is recommended to allow the range hood to automatically execute the corresponding speed, making the range hood more intelligently matched with the user's characteristic information.

[0056] Example 2

[0057] like Figure 3 As shown, the difference between this embodiment and the first embodiment above is that: gender information, age information, and emotional characteristic information are used as indicators to determine the target operating mode of the range hood. Different levels are divided for each indicator, and the ABC classification weight method is used to determine the weight and level ratio of each indicator to determine the final evaluation result E, which is used to prompt the target user whether the range hood should execute the corresponding speed.

[0058] like Figure 3 As shown, in this embodiment, E = W * w i +X*x j +Y*y k The weights for gender, age, and emotional characteristics are W, X, and Y, respectively, with W+X+Y=1; i x represents the percentage of indicator levels corresponding to gender information. j The percentage of indicator levels corresponding to age information, y k This represents the percentage of indicator levels corresponding to emotional characteristics. Gender, age, and emotional characteristics directly influence the final evaluation result E. By allocating weights and classifying indicator levels according to their degree of influence, the evaluation result can be optimized to a greater extent, ensuring that the determined target operating speed reflects the actual choice of the target user.

[0059] like Figure 3 As shown in this embodiment, gender information is divided into two levels: male or female. The proportion of indicator levels affecting the target operating mode of the range hood is w1 and w2, where w1 + w2 = 1. Age information is divided into at least four levels according to age range. The proportion of indicator levels affecting the target operating mode of the range hood is x1, x2, x3, and x4, where x1 + x2 + x3 + x4 = 1. Emotional characteristic information is divided into at least four levels: joy, anger, sorrow, and happiness. The proportion of indicator levels affecting the target operating mode of the range hood is y1, y2, y3, and y4, where y1 + y2 + y3 + y4 = 1. The evaluation indicators are divided into different levels, especially age information and emotional characteristic information, which can be further refined to truly match the target operating speed of the range hood with the user's characteristic information, enabling more intelligent and humanized control of the range hood's operation and meeting the diverse needs of the target users.

[0060] In this embodiment, the fan motor speed of the range hood is divided into three levels: gentle speed, medium speed, and high speed. Different levels correspond to different E value ranges. The final evaluation result E is obtained by using gender information, age information, and emotional characteristic information. The E value range corresponding to the final evaluation result E is determined, and the fan motor is recommended to execute a speed level that matches the corresponding E value range.

[0061] Using the aforementioned range hood control method, gender, age, and emotional characteristics are considered significant user features. By employing the ABC classification weighting method to determine the weight and grade proportion of each indicator, a more comprehensive evaluation of the impact of each indicator and its different grades on the target user's cooking habits can be achieved, thereby more objectively determining the target operating speed of the range hood.

[0062] Example 3

[0063] like Figure 4 As shown, the difference between this embodiment and the first embodiment described above is that: Figure 4 As shown, in this embodiment, a first set of songs corresponding to the gender information of the target user is determined based on the gender information of the target user; a second set of songs corresponding to the age information of the target user is determined from the first set of songs based on the age information of the target user; and a target set of songs corresponding to the emotional characteristics of the target user is determined from the second set of songs based on the emotional characteristics of the target user. The target set of songs includes multiple songs.

[0064] like Figure 4 As shown, in this embodiment, based on user characteristic information, the system prompts the target user whether to automatically play songs and detects the target user's voice information. If the detection result is yes, songs from the target song set are played randomly; if the detection result is no, the current operating state is maintained. Prompting the target user to automatically play songs based on user characteristic information not only enables real-time interaction between the target user and the range hood but also provides the target user with a diverse and enjoyable cooking experience. Furthermore, it diversifies the functions of the range hood and makes it more intelligent to use.

[0065] In this embodiment, the songs played include folk music, light music, pop music, jazz, rock music, and others. Different songs are recommended to the target user based on their gender, age, and emotional characteristics, so that the target user can have a pleasant cooking experience.

[0066] By using the aforementioned range hood control method, different songs are recommended to users based on their gender, age, and emotional characteristics. Compared to the relatively crude random playback used in existing solutions, this method truly achieves human-computer interaction and provides intelligent and targeted music recommendations based on individual user differences.

[0067] Example 4

[0068] like Figure 5 As shown, this embodiment of the invention provides a control device for a range hood, applying the aforementioned control method for a range hood. The device includes: a detection module for detecting the facial image and voice information of a target user; an acquisition module for receiving the facial image of the target user detected by the detection module and acquiring user feature information, wherein the user feature information includes: gender information, age information, and emotional feature information; an analysis module for determining the target operating mode of the range hood based on the user feature information; and a control module for controlling the range hood to operate in the target operating mode based on the target operating mode determined by the analysis module and / or the voice information of the target user. By detecting the facial image and voice information of the target user, the control device acquires the target user's gender, age, and emotional feature information, and controls the target operating mode of the range hood to match the user feature information, thereby enhancing the convenience, enjoyment, and experience of the user during the cooking process.

[0069] As shown in the figure, in this embodiment, the detection module includes a face image detection submodule and a voice information detection submodule. The face image detection submodule performs face tracking in real time to obtain the face information of the target user, while the voice information detection submodule performs voice tracking in real time to obtain the instructions and commands of the target user.

[0070] like Figure 5 As shown in this embodiment, the detection module is connected to both the acquisition module and the control module, and the analysis module is also connected to both. The control module controls the range hood's operating speed and / or the music played to match user characteristic information. Based on the target user's gender, age, and emotional characteristics, the control module controls the range hood to operate at the appropriate speed and / or plays appropriate music. Compared to traditional range hoods, this provides richer functionality, more intelligent operation, and an enhanced cooking experience for the user.

[0071] In this embodiment, the control device is connected to a mobile APP. The control device automatically records the usage of the range hood, including user characteristics, the operating speed of the range hood, the usage time of the range hood, the type of music played, and other information, which are simultaneously transmitted to the mobile APP. Through big data analysis, the user's mood status over at least one month is analyzed, and a mood health report is generated and pushed to the user via the mobile APP, so that the user can have a diverse and pleasant cooking experience.

[0072] The control device of the range hood detects the target user's facial image and voice information to obtain the target user's gender, age, and emotional characteristics. Based on the user's characteristics, the range hood is controlled to operate at the corresponding speed and / or play corresponding songs. This not only enables real-time interaction between the target user and the range hood but also provides the target user with a diverse and enjoyable cooking experience. Furthermore, it diversifies the functions of the range hood and makes it more intelligent to use.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A control method for a range hood, characterized in that, include: Detect facial images and voice information of target users within the target area where the range hood is located; Obtain user characteristic information of the target user, including: gender information, age information and emotional characteristic information; Gender, age, and emotional characteristics are used as indicators to determine the target operating mode of the range hood. Different levels are divided for each indicator, and the ABC classification weight method is used to determine the weight and level proportion of each indicator. The final evaluation result E is determined to prompt the target user whether the range hood should be set to the corresponding speed. Among them, the weights of gender information, age information, and emotional characteristic information are W, X, and Y, respectively, and ;w i x represents the percentage of indicator levels corresponding to gender information. j The percentage of indicator levels corresponding to age information, y k The percentage of indicator levels corresponding to emotional characteristics; Gender information is divided into two levels: male or female. The proportions of the indicator levels affecting the target operating mode of the range hood are w1 and w2, respectively. ; Age information is categorized into at least four levels based on age range. The percentage of each level affecting the target operating mode of the range hood is x1, x2, x3, and x4. ; Emotional characteristics are categorized into at least four levels: joy, anger, sorrow, and happiness. The percentages of these levels affecting the target operating mode of the range hood are y1, y2, y3, and y4, among which... .

2. The control method for a range hood according to claim 1, characterized in that, The system detects the facial image of the target user to obtain the user's feature information, so that the operating speed of the range hood can be matched with the user's feature information.

3. The control method for a range hood according to claim 2, characterized in that, Based on user characteristic information, prompt the target user whether the range hood should automatically execute the recommended speed, and detect the target user's voice information; If the test result is yes, then control the range hood to run at the recommended speed; If the test result is negative, the current operating status will be maintained.

4. A control method for a range hood according to any one of claims 1 to 3, characterized in that, The operating speed of a range hood is controlled by a fan motor, which is divided into three speed levels: gentle, medium, and high.

5. The control method for a range hood according to claim 1, characterized in that, Age information is divided into the following four levels according to age range: Level 1 is greater than 55 years old; Level 2 is less than or equal to 55 years old and greater than 25 years old; Level 3 is less than or equal to 25 years old and greater than 14 years old; Level 4 is less than or equal to 14 years old.

6. A control device for a range hood, employing the control method for a range hood according to any one of claims 1 to 5, characterized in that, include: The detection module is used to detect the facial images and voice information of the target user; The acquisition module receives the face image of the target user detected by the detection module and acquires user feature information, including gender information, age information and emotional feature information. The analysis module determines the target operating mode of the range hood based on user characteristic information; The control module controls the range hood to operate in the target mode based on the target operating mode determined by the analysis module and the voice information of the target user.

7. The control device for a range hood according to claim 6, characterized in that: The detection module is connected to both the acquisition module and the control module, and the analysis module is also connected to both the acquisition module and the control module. The control module is used to control the operating speed of the range hood and match it with the user's characteristic information.