Projection control method of range hood and range hood

Abstract

The invention provides a projection control method of a range hood and the range hood, the range hood is provided with a projection module, the method comprises the following steps: determining a menu course, and dividing the menu course into a plurality of steps; wherein the steps comprise common steps and key steps; acquiring an action image of cooking by the user according to the menu, and projecting a menu course corresponding to the action image through a projection module; and projecting common steps and / or key steps of the menu course through a projection module based on the cooking proficiency of the user. In the mode, the step of projecting the menu tutorial based on the action of the user can ensure that the action of the user corresponds to the projected content, so that the tutorial can be better prompted to the user; in addition, a menu course can be projected based on the cooking proficiency of the user, and it is guaranteed that both the small-hand user and the old-hand user can have good use experience.

Description

Technical Field

[0001] This invention relates to the field of smart home technology, and in particular to a projection control method for a range hood and a range hood itself. Background Technology

[0002] Currently, when recipe tutorials are played on the projection module of a range hood, some users, especially beginners, may not be able to keep up with the pace of each step. This can lead to situations where a step has already finished playing, but the user hasn't yet performed the action. In such cases, users often need to manually adjust the progress and replay the step, which is cumbersome and results in a poor user experience. Furthermore, some cooking steps in the tutorials may be too fast for beginners to replicate; however, deliberately slowing down the tutorials can negatively impact the experience for experienced cooks. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a projection control method and a range hood that can project the steps of a recipe tutorial based on the user's actions, ensuring that the user's actions correspond to the projected content, thereby providing better prompts and tutorials to the user; it can also project the steps of a recipe tutorial based on the user's cooking proficiency, ensuring that both novice and experienced users can have a good user experience.

[0004] In a first aspect, embodiments of the present invention provide a projection control method for a range hood, wherein the range hood is equipped with a projection module, and the method includes: determining a recipe tutorial and dividing the recipe tutorial into multiple steps; wherein the steps include: ordinary steps and key steps; acquiring action images of a user cooking according to the recipe, and projecting the steps of the recipe tutorial corresponding to the action images through the projection module; and projecting the ordinary steps and / or key steps of the recipe tutorial through the projection module based on the user's cooking proficiency.

[0005] In an optional embodiment of this application, the range hood is provided with an image recognition module; the step of obtaining an image of the user cooking according to a recipe includes: obtaining an image of the user cooking according to a recipe through the image recognition module.

[0006] In an optional embodiment of this application, the projection module is mounted on both sides of the range hood via a movable electric push rod, which is used to adjust the projection range of the projection module by moving it; a stove area and a projection area are provided on the stove surface, the stove area is used to install the stove; and the projection area is used for the projection module to project.

[0007] In an optional embodiment of this application, the step of projecting the general steps and / or key steps of the recipe tutorial through the projection module based on the user's cooking proficiency includes: if the user is an inexperienced cook, projecting the general steps and key steps of the recipe tutorial through the projection module; if the user is an experienced cook, projecting the key steps of the recipe tutorial through the projection module.

[0008] In an optional embodiment of this application, the above-mentioned step of projecting the general steps and / or key steps of the recipe tutorial through the projection module based on the user's cooking proficiency includes: when projecting the key steps of the recipe tutorial through the projection module, if the user is an inexperienced cook, the detailed process of the key steps is projected; when projecting the key steps of the recipe tutorial through the projection module, if the user is an experienced cook, the simplified process of the key steps is projected.

[0009] In optional embodiments of this application, the above method further includes: obtaining information on the ingredients being cooked by the user; the information on the ingredients includes: the time taken to cut the vegetables, the method of processing the ingredients, and / or the temperature inside the pot; and determining the user's cooking proficiency based on the motion image and / or the information on the ingredients.

[0010] In optional embodiments of this application, the step of determining a user's cooking proficiency based on motion images includes: determining whether the motion image conforms to a preset motion in the recipe; if the motion image conforms to the preset motion in the recipe, the user is a proficient cook; if the motion image does not conform to the preset motion in the recipe, the user is an unproficient cook; the step of determining a user's cooking proficiency based on ingredient information includes: determining whether the ingredient information conforms to a preset range in the recipe; if the ingredient information conforms to the preset range in the recipe, the user is a proficient cook; if the ingredient information does not conform to the preset range in the recipe, the user is an unproficient cook.

[0011] In optional embodiments of this application, the method further includes: projecting motion images of preset actions that do not conform to the recipe through a projection module; and projecting information on ingredients that do not conform to a preset range of the recipe through a projection module.

[0012] In optional embodiments of this application, the above method further includes: determining the user's cooking proficiency based on the number of times the user cooks according to the recipe; or, obtaining the cooking proficiency input by the user.

[0013] Secondly, embodiments of the present invention also provide a range hood, which is equipped with a projection module. The range hood includes: a recipe tutorial division module, used to determine the recipe tutorial and divide the recipe tutorial into multiple steps; wherein the steps include: ordinary steps and key steps; a recipe tutorial first projection module, used to acquire action images of a user cooking according to the recipe, and project the steps of the recipe tutorial corresponding to the action images through the projection module; and a recipe tutorial second projection module, used to project the ordinary steps and / or key steps of the recipe tutorial through the projection module based on the user's cooking proficiency.

[0014] The embodiments of the present invention bring the following beneficial effects: This invention provides a projection control method and a range hood for a range hood. The method involves determining a recipe tutorial and dividing it into multiple steps, including ordinary steps and key steps. The method acquires motion images of a user cooking according to the recipe and projects the corresponding steps of the recipe tutorial through a projection module. Based on the user's cooking proficiency, the ordinary steps and / or key steps of the recipe tutorial are projected through the projection module. This approach can project the steps of the recipe tutorial based on the user's actions, ensuring a correspondence between the user's actions and the projected content, thus providing better tutorial guidance. Furthermore, it can project the steps of the recipe tutorial based on the user's cooking proficiency, ensuring a good user experience for both novice and experienced users.

[0015] Other features and advantages of this disclosure will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the techniques described above.

[0016] To make the above-mentioned objects, features and advantages of this disclosure more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A flowchart illustrating a projection control method for a range hood provided in an embodiment of the present invention; Figure 2 A flowchart of another projection control method for a range hood provided in an embodiment of the present invention; Figure 3 A schematic diagram of a range hood provided in an embodiment of the present invention; Figure 4 A schematic diagram of a projection control method for a range hood provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a range hood provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Currently, when recipe tutorials are played on the projection module of a range hood, some users, especially beginners, may not be able to keep up with the pace of each step. This can lead to situations where a step has already finished playing, but the user hasn't yet performed the action. In such cases, users often need to manually adjust the progress and replay the step, which is cumbersome and results in a poor user experience. Furthermore, some cooking steps in the tutorials may be too fast for beginners to replicate; however, deliberately slowing down the tutorials can negatively impact the experience for experienced cooks.

[0021] Based on this, the present invention provides a projection control method and a range hood that can project the steps of a recipe tutorial based on the user's actions, ensuring that the user's actions correspond to the projected content, thereby providing better prompts and tutorials to the user; it can also project the steps of a recipe tutorial based on the user's cooking proficiency, ensuring that both novice and experienced users can have a good user experience.

[0022] To facilitate understanding of this embodiment, a projection control method for a range hood disclosed in this embodiment of the invention will first be described in detail.

[0023] Example 1: This invention provides a projection control method for a range hood, wherein the range hood is equipped with a projection module. (See also...) Figure 1 The flowchart shown illustrates a projection control method for a range hood, which includes the following steps: Step S102: Determine the recipe tutorial and divide the recipe tutorial into multiple steps; the steps include: ordinary steps and key steps.

[0024] In this embodiment, a recipe tutorial can be obtained first. The recipe tutorial can be selected by the user through the display panel of the range hood, by the user through a terminal device (e.g., a mobile phone) that is connected to the range hood, or by the user through a virtual control interface projected by a projection module.

[0025] In this embodiment, when the projection module actually plays the recipe tutorial, the synchronization issue between the recipe and the user also needs to be considered. After determining the recipe tutorial, this embodiment can divide the recipe tutorial into multiple steps. These steps can include: ordinary steps and key steps.

[0026] In this embodiment, the recipe tutorial is broken down into its most detailed steps, such as chopping vegetables, preparing ingredients, and heating the pan. These steps are further categorized into ordinary steps and critical steps based on their importance.

[0027] Step S104: Obtain the action image of the user cooking according to the recipe, and project the steps of the recipe tutorial corresponding to the action image through the projection module.

[0028] In this embodiment, the system can recognize the user's cooking actions according to the recipe. The steps of the recipe tutorial projected by the projection module can correspond to the recognized action images, thereby ensuring that the user's cooking actions are the same as the steps of the recipe tutorial projected by the projection module, thus providing better prompts and tutorials to the user.

[0029] Step S106: Based on the user's cooking proficiency, project the general steps and / or key steps of the recipe tutorial through the projection module.

[0030] In this embodiment, the common steps and / or key steps of the recipe tutorial can also be projected through the projection module based on the user's cooking proficiency.

[0031] In this embodiment, different procedures can be provided to assist the user based on their cooking proficiency: for example, for cooking novices, the projected recipe tutorial shows the ordinary and key steps, and the projected tutorial is more detailed, carefully checking every step of the user's cooking process; for experienced cooks, users may need more freedom to improvise, and the projected recipe tutorial can only provide prompts at a few key points in the cooking process.

[0032] This invention provides a projection control method for a range hood. The method involves determining a recipe tutorial and dividing it into multiple steps, including general steps and key steps. The method acquires motion images of a user cooking according to the recipe and projects the corresponding steps of the recipe tutorial through a projection module. Based on the user's cooking proficiency, the method projects the general steps and / or key steps of the recipe tutorial. This approach can project the steps of the recipe tutorial based on the user's actions, ensuring a correspondence between the user's actions and the projected content, thus providing better guidance. Furthermore, it can project the steps of the recipe tutorial based on the user's cooking proficiency, ensuring a good user experience for both novice and experienced users.

[0033] Example 2: This embodiment provides another projection control method for range hoods. This method is implemented based on the above embodiment, focusing on how the preset recipe tutorials are more closely aligned with the user's actual cooking process, achieving synchronization between the recipe and the user's actions. See also Figure 2 The flowchart shown represents another projection control method for a range hood, which includes the following steps: Step S202: Determine the recipe tutorial and divide the recipe tutorial into multiple steps; the steps include: ordinary steps and key steps; Step S204: Obtain the action image of the user cooking according to the recipe through the image recognition module, and project the steps of the recipe tutorial corresponding to the action image through the projection module.

[0034] This embodiment addresses the issue from both hardware and software perspectives. On the hardware side, considering that users don't stay in front of the stove area continuously during cooking (they might go to the sink to wash vegetables or the preparation area to process ingredients), the system can be equipped with multiple image recognition modules (or cameras) to recognize the user's actions from various angles, allowing the system to more clearly understand the user's specific actions during cooking. The specific installation location of the image recognition modules (or cameras) can be determined based on the layout of the user's kitchen.

[0035] See Figure 3 The diagram shows a range hood. The projection module is mounted on both sides of the range hood via movable electric push rods. The electric push rods are used to adjust the projection range of the projection module by moving them. The stove surface is provided with a stove area and a projection area. The stove area is used to install the stove. The projection area is used for the projection module to project images.

[0036] If the projection module is placed directly on both sides of the range hood, the area that the projection module can cover is only on both sides of the stove area. Although users can easily see the projected image when using the stove, they cannot see the projected image when washing vegetables or preparing ingredients. Therefore, the system cannot effectively guide users to prepare ingredients according to the recipe.

[0037] Therefore, as Figure 3 As shown, this embodiment adds an electric push rod to the projection module. As the electric push rod moves, the projection module also moves, thus allowing the projection module to project a larger area. By simply setting the length of the electric push rod and corresponding projection positions next to the sink area and food preparation area, the system can project recipe tutorials and provide cooking assistance to the user while they are preparing food or performing other tasks.

[0038] In terms of software, the system first needs to be more detailed according to the recipe. Taking ingredient preparation as an example, traditional recipes often have a relatively simple description of ingredient preparation, only stating which ingredients need to be prepared or what processing is required, without providing a more detailed description of the processing. However, in this embodiment, each step of ingredient processing will be described accordingly, from washing vegetables to chopping vegetables to storing vegetables. Each step will be set up as a separate step in the recipe tutorial, with corresponding voice and visual prompts.

[0039] Step S206: Based on the user's cooking proficiency, project the general steps and / or key steps of the recipe tutorial through the projection module.

[0040] The system then needs to differentiate users' cooking proficiency levels, that is, whether they are beginners or experienced cooks. Based on the user's experience, the system will offer two modes: a beginner mode and an experienced mode, each using different recipe tutorials. The differences between the two modes are mainly twofold: In some embodiments, when projecting key steps of a recipe tutorial via the projection module, if the user is an inexperienced cook, the detailed process of the key steps is projected; if the user is an experienced cook, a simplified process of the key steps is projected.

[0041] First, regarding the level of detail in each step of a recipe, taking chopping vegetables as an example, in beginner mode, the system guides users while providing detailed advice on chopping (i.e., projecting a detailed process for key steps), such as how to hold the knife, how to cut ingredients evenly, and how to avoid cutting hands. This guidance helps users become accustomed to the correct methods of handling ingredients and develop good cooking habits. However, for experienced cooks who already have extensive experience in handling ingredients, overly detailed cooking instructions can be tedious and negatively impact the user experience. In this case, the system only needs to describe what ingredients are needed and what processing steps are required (i.e., projecting a simplified process for key steps), giving users more room to improvise.

[0042] In some embodiments, if the user is an inexperienced cook, the general and key steps of the recipe tutorial are projected through the projection module; if the user is an experienced cook, the key steps of the recipe tutorial are projected through the projection module.

[0043] Second, regarding the frequency of recipe prompts, for cooking novices, the prompts in the recipe are played more frequently. When the recipe is broken down into more detailed steps, the system will provide voice prompts for each step (i.e., projecting ordinary steps and key steps) to ensure the user's cooking results. For experienced cooks, the system will only select steps that are prone to errors or are more critical to provide prompts (i.e., only projecting key steps), such as when to add seasonings, the amount of seasonings to add, and when to adjust the heat. For the other ordinary steps, users can choose to make their own decisions, giving them more cooking freedom.

[0044] In some embodiments, information about the ingredients being cooked by the user can also be obtained; the information about the ingredients includes: the time taken to chop the vegetables, the method of processing the ingredients, and / or the temperature inside the pot; the user's cooking proficiency is determined based on the motion images and / or the information about the ingredients.

[0045] Users can choose between a beginner's mode and an experienced user mode based on their own situation. The system can also detect the user's actions and the condition of the ingredients during the cooking process, and use this information to determine the user's cooking proficiency, such as the time taken to chop vegetables, the method of ingredient preparation, and the control of the pot's temperature.

[0046] See Figure 4 The diagram illustrates a projection control method for a range hood. Steps B1-B9 detail the projection control method for the range hood. Step B1: The range hood system starts working.

[0047] Step B2: The user selects the operating mode of the range hood system, that is, the novice mode or the expert mode.

[0048] In some embodiments, a user's cooking proficiency can be determined based on the number of times the user cooks according to a recipe; or, the cooking proficiency input by the user can be obtained.

[0049] In other words, the range hood system can determine a user's cooking proficiency based on the number of times the user cooks according to the recipe, or the user can manually input the cooking proficiency level, for example, the user can manually select the novice mode or the expert mode.

[0050] Step B3: The user selects the recipe needed for this cooking session. The recipe will automatically generate different tutorials depending on the mode selected by the user.

[0051] Step B4: If the current working mode is beginner mode, proceed to step a1; if the current working mode is experienced mode, proceed to step b1.

[0052] Step a1: The system uses an image recognition module to detect the user's cooking actions in real time. If the user has multiple image recognition modules (or cameras) installed in their home, the system can capture the user's actions from multiple angles for more accurate detection.

[0053] Step a2: The system provides corresponding guidance and prompts to the user in each step of the recipe according to the preset recipe program, to help the user complete the corresponding recipe steps.

[0054] In some embodiments, it can be determined whether the motion image conforms to the preset motion of the recipe; if the motion image conforms to the preset motion of the recipe, the user is a skilled cook; it can also be determined whether the ingredient information conforms to the preset range of the recipe; if the motion image does not conform to the preset motion of the recipe, the user is an unskilled cook; if the ingredient information conforms to the preset range of the recipe, the user is a skilled cook; if the ingredient information does not conform to the preset range of the recipe, the user is an unskilled cook.

[0055] Step a3: The system uses multiple cameras to detect user actions and compares the user's current cooking actions with the preset cooking actions in the recipe program using image recognition technology to determine whether the user's actual actions match the preset actions in the recipe. If they match, proceed to step a5; otherwise, proceed to step a4.

[0056] The purpose of this step is primarily to help novice users develop good cooking habits, enabling them to perform various cooking actions such as chopping vegetables, stir-frying, and washing cookware more accurately. Users who prefer to cook according to their own habits can also disable this feature.

[0057] In some embodiments, the projection module can project motion images that do not conform to the preset actions in the recipe; and project information about ingredients that do not conform to the preset range in the recipe.

[0058] Step a4: The system issues a prompt, informing the user that there are non-standard actions and reminding the user to adjust the cooking actions, and then returns to step a3.

[0059] Step a5: The system uses multiple cameras to detect the user's actions and compares them with the actions in the recipe to determine whether the user has completed the current step.

[0060] There are two main criteria for this judgment: First, the system determines whether the action image matches the preset actions in the recipe, and whether the user stops after performing the expected action for a certain time t (at which point the user's cooking action can be considered complete). In other words, the system uses both the duration of the corresponding action and the stopping action as the judgment criteria. This "certain time t" is determined by considering both the complexity of the cooking steps and the expected completion time; the longer the cooking step itself requires, the more time t is allocated. Considering the potential for unexpected situations during cooking, users can also use voice or gestures to pause the current step or directly proceed to the next cooking step, providing greater flexibility.

[0061] Second, the system determines the completion rate of the user's cooking steps based on whether the ingredient information matches the recipe's preset range. For example, it checks whether the user's ingredient processing met expectations, whether the ingredients were cleaned properly, and whether the ingredients in the pot reached the expected level of doneness. Only when the completion rate of a cooking step reaches the expected level will the system determine that the cooking step is complete. After a comprehensive comparison, the system determines whether the user has completed the current recipe's steps. If completed, proceed to step a7; if not, proceed to step a6.

[0062] Step a6: If the user's cooking steps are incomplete, the system will point out the areas where the user has not completed the task, such as ingredients not being properly prepared, utensils not being cleaned properly, or insufficient cooking heat. The system will magnify these incomplete parts and display them on the projection module, allowing the user to clearly understand their problems. The system will repeatedly play the tutorial for this recipe until the user completes the recipe steps.

[0063] Step a7: The system proceeds to the preset next recipe step.

[0064] Step a8: Have all the preset cooking steps in the recipe been completed? If they have been completed, proceed to step B5; if not, proceed to step a2 to learn the next cooking steps.

[0065] Step b1: The system uses an image recognition module to detect the user's cooking actions in real time. If the user has multiple image recognition modules (or cameras) installed in their home, the system can capture the user's actions from multiple angles for more accurate detection.

[0066] Step b2: The system will not provide guidance too frequently, but will only provide recipe prompts to users at a few key steps. These steps will be set according to the specific circumstances of the recipe, and are generally the steps that have a greater impact on the cooking result, are more complicated to operate, or are easy for users to make mistakes.

[0067] Step b3: In expert mode, the system tends to respect the user's own cooking habits and will only prompt the user when there are serious problems that significantly affect the cooking results, such as: ingredients not being washed properly, the heat in the pot being too high, or the user forgetting to add seasonings. However, the system will still project preset recipe tutorials through images and text for the user's reference. If the system detects serious cooking problems, it will proceed to step b4; otherwise, it will proceed to step b5.

[0068] Step b4: The system issues a prompt, pointing out the user's cooking errors. The system will magnify these errors and display them on the projection module, allowing the user to clearly understand their mistakes. Once the system detects that the user has made corrections, it proceeds to step b5.

[0069] Step b5: Have all the preset cooking steps in the recipe been completed? If they have been completed, proceed to step b5; if not, proceed to step b2 to learn the next cooking steps.

[0070] Step B5: At this point, the recipe tutorial has finished playing. The system will comprehensively judge the user's cooking proficiency based on the user's overall cooking performance (including whether the user's cooking actions are standard, the time spent by the user in handling each cooking step, and the final cooking effect of the dish), and confirm whether the user's cooking proficiency is that of a novice or an expert.

[0071] Step B6: The system determines whether the user's skill level matches the cooking mode selected by the user. If it matches, proceed to step B8; otherwise, proceed to step B7.

[0072] Step B7: The system will prompt the user the next time they cook this recipe, reminding them whether to adjust the cooking mode to better suit their actual experience.

[0073] Step B8: The system will record the problems that occurred during the user's cooking process and will focus on checking them during the next cooking process to prevent the user from making the same mistakes again.

[0074] Step B9: The range hood system is now operational.

[0075] It's also important to note that in addition to the pre-set beginner and advanced modes, users can customize the recipe process when viewing it. Users can choose which steps require prompts and which do not, making it more tailored to their individual cooking habits.

[0076] The method provided in this embodiment of the invention allows the range hood system to project over a wider area, making it easier for users to view the recipe projection from other locations, thus enhancing usability. Simultaneously, the range hood system can use different recipe assistance methods based on the user's cooking proficiency, ensuring the recipe program is synchronized with the user's actual cooking process. The range hood system monitors each cooking step in real time during the cooking process and promptly prompts the user with sound and projected images when errors are detected. The method provided in this embodiment of the invention mainly includes: (1) An electric push rod is installed in front of the projection module of the range hood. As the electric push rod moves, the projection position of the projection module will also move. The system can project the image of the recipe in the vegetable washing area or the vegetable preparation area, so that users can view the recipe while handling other work.

[0077] (2) The system can set different recipe assistance modes for users based on their cooking proficiency: beginner mode and expert mode. The beginner mode provides more detailed guidance, while the expert mode gives users more room to play and is more in line with their cooking habits.

[0078] (3) The system can use image recognition function to identify the user's cooking actions under the detection of multiple image recognition modules at different angles, and compare them with the corresponding actions in the recipe to confirm whether the user's cooking process is consistent with the recipe actions, whether the completion of the recipe is as expected, and promptly remind the user to correct any cooking mistakes.

[0079] (4) The system can synchronize the recipe with the user after recognizing the user's cooking actions. That is, the system can proceed to the next recipe tutorial after confirming that the user has completed the current cooking step, which is more in line with the user's actual cooking experience.

[0080] Example 3: Corresponding to the above method embodiments, this invention provides a range hood equipped with a projection module. (See attached image.) Figure 5 The diagram shown illustrates the structure of a range hood, which includes: The recipe tutorial division module 51 is used to define the recipe tutorial by dividing it into multiple steps; among which, the steps include: ordinary steps and key steps; The first projection module 52 of the recipe tutorial is used to acquire the action images of the user cooking according to the recipe, and project the steps of the recipe tutorial corresponding to the action images through the projection module. The second projection module 53 of the recipe tutorial is used to project the common steps and / or key steps of the recipe tutorial through the projection module based on the user's cooking proficiency.

[0081] This invention provides a range hood that determines a recipe tutorial and divides it into multiple steps. These steps include: general steps and key steps. The method involves acquiring motion images of a user cooking according to the recipe and projecting the corresponding steps of the recipe tutorial onto the motion images using a projection module. Based on the user's cooking proficiency, the general steps and / or key steps of the recipe tutorial are projected onto the hood using the projection module. This approach can project the steps of the recipe tutorial based on the user's actions, ensuring a correspondence between the user's actions and the projected content, thus providing better tutorial guidance. Furthermore, it can project the steps of the recipe tutorial based on the user's cooking proficiency, ensuring a good user experience for both novice and experienced users.

[0082] The aforementioned range hood is equipped with an image recognition module; the aforementioned recipe tutorial first projection module is used to acquire images of the user's cooking actions according to the recipe through the image recognition module.

[0083] The aforementioned projection module is mounted on both sides of the range hood via movable electric push rods, which are used to adjust the projection range of the projection module by moving them. The stove surface is divided into a stove area and a projection area. The stove area is used to install the stove, and the projection area is used for the projection module to project images.

[0084] The second projection module of the above recipe tutorial is used to project the ordinary and key steps of the recipe tutorial if the user is an inexperienced cook; and to project the key steps of the recipe tutorial if the user is an experienced cook.

[0085] The second projection module of the above recipe tutorial is used to project a detailed process of the key steps when the user is an inexperienced cook, and a simplified process of the key steps when the user is an experienced cook.

[0086] The aforementioned range hood includes: a cooking proficiency determination module, used to acquire information about the ingredients being cooked by the user; the ingredient information includes: the time taken to chop vegetables, the method of processing the ingredients, and / or the temperature inside the pot; and the user's cooking proficiency is determined based on motion images and / or the ingredient information.

[0087] The aforementioned cooking proficiency determination module is used to determine whether the motion image conforms to the preset motion of the recipe; if the motion image conforms to the preset motion of the recipe, the user is a proficient cook; if the motion image does not conform to the preset motion of the recipe, the user is an unproficient cook. The aforementioned cooking proficiency determination module is also used to determine whether the ingredient information conforms to the preset range of the recipe; if the ingredient information conforms to the preset range of the recipe, the user is a proficient cook; if the ingredient information does not conform to the preset range of the recipe, the user is an unproficient cook.

[0088] The second projection module of the above-mentioned recipe tutorial is also used to project motion images that do not conform to the preset actions of the recipe; and to project information on ingredients that do not conform to the preset range of the recipe.

[0089] The cooking proficiency determination module described above is also used to determine a user's cooking proficiency based on the number of times the user cooks according to a recipe; or, to obtain the cooking proficiency input by the user.

[0090] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working process of the range hood described above can be referred to the corresponding process in the aforementioned embodiments of the projection control method for the range hood, and will not be repeated here.

[0091] Example 4: This invention also provides an electronic device for operating the projection control method of the above-mentioned range hood; see also Figure 6 The diagram shows the structure of an electronic device, which includes a memory 100 and a processor 101. The memory 100 is used to store one or more computer instructions, which are executed by the processor 101 to implement the above-mentioned projection control method for the range hood.

[0092] Furthermore, Figure 6 The electronic device shown also includes a bus 102 and a communication interface 103, with the processor 101, the communication interface 103 and the memory 100 connected via the bus 102.

[0093] The memory 100 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 103 (which can be wired or wireless), such as the Internet, wide area network, local area network, metropolitan area network, etc. The bus 102 may be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 6 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0094] Processor 101 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of processor 101 or by instructions in software form. Processor 101 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software module can reside in a readily available storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory 100, and processor 101 reads information from memory 100 and, in conjunction with its hardware, completes the steps of the method described in the foregoing embodiments.

[0095] This invention also provides a computer-readable storage medium storing computer-executable instructions. When these computer-executable instructions are called and executed by a processor, they cause the processor to implement the above-described projection control method for a range hood. For specific implementation details, please refer to the method embodiments, which will not be repeated here.

[0096] The projection control method for a range hood and the computer program product for a range hood provided in this embodiment of the invention include a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods in the preceding method embodiments. For specific implementation details, please refer to the method embodiments, which will not be repeated here.

[0097] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and / or device described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0098] Furthermore, in the description of the embodiments of the present invention, 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0099] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0100] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0101] Finally, it should be noted that the above embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A projection control method of a range hood, characterized by, The range hood is provided with a projection module, and the method comprises: Determine a recipe tutorial, and divide the recipe tutorial into multiple steps; wherein, the steps comprise: common steps and key steps; Obtain action images of a user cooking according to a recipe, and project steps of the recipe tutorial corresponding to the action images through the projection module; Based on the cooking proficiency of the user, project the common steps and / or key steps of the recipe tutorial through the projection module.

2. The method of claim 1, wherein, The range hood is provided with an image recognition module; the step of obtaining action images of a user cooking according to a recipe comprises: Obtain action images of a user cooking according to a recipe through the image recognition module.

3. The method of claim 1, wherein, The projection module is arranged on both sides of the range hood through movable electric push rods, and the electric push rods are used to adjust the projection range of the projection module by moving; A cooking area and a projection area are arranged on the plane of the cooking bench, the cooking area is used to install a cooking appliance, and the projection area is used for the projection module to project.

4. The method of claim 1, wherein, The step of projecting the common steps and / or key steps of the recipe tutorial through the projection module based on the cooking proficiency of the user comprises: If the user is an unskilled cooking user, project the common steps and key steps of the recipe tutorial through the projection module; If the user is a skilled cooking user, project the key steps of the recipe tutorial through the projection module.

5. The method of claim 1, wherein, The step of projecting the common steps and / or key steps of the recipe tutorial through the projection module based on the cooking proficiency of the user comprises: When the key steps of the recipe tutorial are projected through the projection module, if the user is an unskilled cooking user, the detailed process of the key steps is projected; When the key steps of the recipe tutorial are projected through the projection module, if the user is a skilled cooking user, the brief process of the key steps is projected.

6. The method of claim 2, wherein, The method further comprises: Obtain material condition information of a user cooking; the material condition information comprises: time for cutting vegetables, processing method of the material, and / or temperature in a pot; Determine the cooking proficiency of the user based on the action images and / or the material condition information.

7. The method of claim 6, wherein, The step of determining the cooking proficiency of the user based on the action images comprises: determining whether the action images conform to preset actions of a recipe; if the action images conform to the preset actions of the recipe, the user is a skilled cooking user; if the action images do not conform to the preset actions of the recipe, the user is an unskilled cooking user; The step of determining the cooking proficiency of the user based on the material condition information comprises: determining whether the material condition information conforms to a preset range of a recipe; if the material condition information conforms to the preset range of the recipe, the user is a skilled cooking user; if the material condition information does not conform to the preset range of the recipe, the user is an unskilled cooking user.

8. The method of claim 7, wherein, The method further comprises: Project the action images that do not conform to the preset actions of the recipe through the projection module; Project the material condition information that does not conform to the preset range of the recipe through the projection module.

9. The method of claim 1, wherein, The method further comprises: Determine the cooking proficiency of the user based on the number of times of cooking according to a recipe by the user; Alternatively, the cooking proficiency of the user is acquired.

10. A range hood characterized by, The oil smoke machine is provided with a projection module, and the oil smoke machine comprises: A recipe tutorial division module is configured to determine a recipe tutorial and divide the recipe tutorial into multiple steps, wherein the steps include ordinary steps and key steps. A recipe tutorial first projection module is configured to acquire an action image of the user cooking according to a recipe, and project a step of the recipe tutorial corresponding to the action image through the projection module. A recipe tutorial second projection module is configured to project ordinary steps and / or key steps of the recipe tutorial through the projection module based on the cooking proficiency of the user.

Images