Projection method, projection device and range hood projection system

Abstract

The invention discloses a projection method, a projection device and a range hood projection system. The method is applied to a range hood projection system, and the system comprises a range hood, a cooking bench and a projection device arranged in a preset range of the range hood or the cooking bench; the projection device is used for projecting to at least two projection areas, and the projection method comprises the following steps: acquiring position information of a target object, and determining a target projection area from the at least two projection areas based on the position information; the target projection area is the projection area closest to the target object in the at least two projection areas; and the projection device determines projection content of the target projection area based on the position information and projects the content to the target projection area. By acquiring the position information of the target object, the projection area closest to the target object is determined as the target projection area, so that the range hood projection system can flexibly adjust the projection content close to the projection area of the target object according to the position of the target object, and the convenience of range hood projection control is improved.

Description

Technical Field

[0001] The present application generally relates to the field of projection display, and particularly relates to a projection method, a projection device, and a range hood projection system. Background Art

[0002] Currently, projection control technology has been widely used in fields such as household appliances due to its characteristic of being able to interact with users through a projection interface. For example, projection control technology can be applied to a kitchen range hood to achieve keyless operation of the range hood.

[0003] Exemplarily, the projection area of an existing projection range hood is usually divided into left and right projection areas, and the projection content of each projection area is too limited, which results in poor convenience for users when using the projection range hood. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a projection method, a projection device, and a range hood projection system. By obtaining the position information of a target object, the projection area closest to the target object is determined as the target projection area, so that the range hood projection system can flexibly adjust the projection content of the projection area close to the target object according to the position of the target object, thereby improving the convenience of range hood projection control.

[0005] In a first aspect, the present invention provides a projection method, which is applied to a range hood projection system. The range hood projection system includes a range hood, a cooking stove, and a projection device disposed within a preset range of the range hood or the cooking stove. The projection device is configured to project onto at least two projection areas;

[0006] The projection device obtains the position information of a target object, and determines a target projection area from at least two projection areas based on the position information; the target projection area is the projection area closest to the target object among at least two projection areas;

[0007] The projection device determines the projection content of the target projection area based on the position information, and projects the projection content onto the target projection area.

[0008] In a second aspect, a projection device is provided. The device includes a sensing module and a processing module electrically connected to the sensing module;

[0009] The sensing module is configured to obtain the position information of a target object, and the processing module is configured to execute the method described in any item of the first aspect based on the position information.

[0010] In a third aspect, a range hood projection system is provided. The system includes a range hood, a cooking stove, and the projection device described in the second aspect disposed within a preset range of the range hood or the cooking stove.

[0011] Fourthly, a computer program product is provided. The computer program product contains instructions. When the instructions are run, the method described in any one of the above first aspects is executed.

[0012] Fifthly, a computer device is provided, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the method described in any one of the above first aspects is implemented.

[0013] Sixthly, a computer-readable storage medium is provided, on which a computer program is stored. The program is characterized in that when it is executed by a processor, the method described in any one of the above first aspects is implemented.

[0014] Compared with the projection range hood with poor control convenience in the prior art, the projection method, projection device, and range hood projection system provided in the embodiments of the present application determine the position information of the target object through the projection device in the range hood projection system, determine the projection area closest to the target object as the target projection area, and further determine the projection content in the target projection area based on the position information of the target object, so that the projection content is specifically the projection content that meets the requirements of the position where the target object is located, so that the range hood projection system can flexibly adjust the projection content of the projection area close to the target object according to the position of the target object, and solves the problem of the limitation of the fixed projection content in each projection area.

[0015] For example, in a scenario where the user uses the range hood and multiple burners on the stove at the same time (where each burner corresponds to a projection area), the projection method provided in the embodiments of the present application can determine the projection area corresponding to the burner closest to the user as the target projection area based on the position information of the user, so that the projection device projects the control content corresponding to the stove currently used by the user in the target projection area, thus solving the problem of the conflict between the control projections of multiple burners and the control projection of the range hood when the user uses multiple burners, and improving the convenience and user experience of the user when using the projection range hood.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:

[0018] Figure 1 It is a distribution schematic diagram of the range hood projection system 10 provided in the embodiments of the present application;

[0019] Figure 2Schematic diagram of the installation position 1 of the projection device 103 provided by the embodiment of the present application;

[0020] Figure 3 Schematic diagram of the installation position 2 of the projection device 103 provided by the embodiment of the present application;

[0021] Figure 4 Schematic diagram of the installation position 3 of the projection device 103 provided by the embodiment of the present application;

[0022] Figure 5 One of the schematic diagrams of the installation of the projection device 103 on the stove 102 provided by the embodiment of the present application;

[0023] Figure 6 Another schematic diagram of the installation of the projection device 103 on the stove 102 provided by the embodiment of the present application;

[0024] Figure 7 Front view schematic diagram of the projection device 103 provided by the embodiment of the present application;

[0025] Figure 8 Side view schematic diagram of the projection device 103 provided by the embodiment of the present application;

[0026] Figure 9 A flow schematic diagram of the projection method provided by the embodiment of the present application;

[0027] Figure 10 A schematic diagram of determining the target projection area provided by the embodiment of the present application;

[0028] Figure 11 Another schematic diagram of determining the target projection area provided by the embodiment of the present application;

[0029] Figure 12 A schematic diagram of the projection content for determining the target projection area provided by the embodiment of the present application;

[0030] Figure 13 Another schematic diagram of the projection content for determining the target projection area provided by the embodiment of the present application;

[0031] Figure 14 A schematic diagram of the projection content of the projection device 103 provided by the embodiment of the present application;

[0032] Figure 15 Control flow schematic diagram of the projection device 103 provided by the embodiment of the present application;

[0033] Figure 16 Another flow schematic diagram of the projection method provided by the embodiment of the present application;

[0034] Figure 17Projection schematic diagram of the projection device 103 at the workbench provided by the embodiment of the present application;

[0035] Figure 18 Schematic structural diagram of the computer device according to the embodiment of the present application. Detailed implementation manners

[0036] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. In addition, it should be noted that for the convenience of description, only the parts related to the invention are shown in the drawings.

[0037] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments. In addition, the term "and / or" in this document is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The terms "first" and "second" in the description and claims of the embodiments of the present application are used to distinguish different objects, rather than to describe the specific order of the objects.

[0038] Currently, as essential appliances in the kitchen, the touch panels of range hoods and cooktops generally have the problem of oil fume pollution. During the cleaning process of the touch panel, it is easy to accidentally touch the touch buttons. For example, during the process of wiping the water stains on the touch panel, it is easy to accidentally switch the gears of the cooktop, etc. This results in the existence of sanitary dead corners on the touch panel.

[0039] In response to this, with the continuous development of control technologies, projection control technology has been widely used in kitchen appliances such as kitchen range hoods due to its characteristic of being able to interact with users through a projection interface to achieve buttonless operation of the appliances.

[0040] However, the projection area of the existing projection range hood is usually divided into left and right projection areas, and the projection content of each projection area is too limited. When the range hood and the cooktop are in a linked state, it is required that the projection area project the operation panels of both the range hood and the cooking range at the same time. This makes it easy for the user to have a situation where the projection and the projection of the cooktop controls are on different sides when using the cooktop on different sides of the cooking range. In addition, the existing projection range hoods usually have an additional function of cooking teaching, and the relevant content of cooking teaching is still projected on the cooking range area, but the preparation process before actual cooking does not appear in the cooking range area. This results in poor convenience for users when using the projection range hood.

[0041] Based on this, an embodiment of the present application provides a projection method, which is applied to a range hood projection system. Specifically, by obtaining the position information of the target object, the projection area closest to the target object is determined as the target projection area, so that the range hood projection system can flexibly adjust the projection content of the projection area close to the target object according to the position of the target object, thereby improving the convenience of range hood projection control.

[0042] Figure 1 FIG. 4 is a distribution schematic diagram of the range hood projection system 10 provided by an embodiment of the present application. As Figure 1 shown, the range hood projection system 10 includes: a range hood 101, a cooking stove 102, and a projection device 103 disposed within a preset range of the range hood 101 or the cooking stove 102.

[0043] Exemplarily, referring to Figure 1 , the range hood 101 is disposed directly above the cooking stove 102 and is correspondingly disposed with the cooking stove 102. Specifically, when the cooking appliance located on the cooking stove 102 is in an operating state, the range hood 101 can suck the cooking fumes generated at the cooking stove 102 and discharge them outdoors.

[0044] The following takes the range hood 101 as an example to introduce the above-mentioned preset range:

[0045] Exemplarily, in the first case, the projection device 103 can be disposed on the range hood 101. Specifically, the projection device 103 can be disposed on the body of the range hood 101 facing the user, so as to project relevant content onto the projection areas near the range hood 101 when it is in an operating state. Specifically, the body facing the user is, for example, the outer shell, the front panel (control panel), or the air deflector (wind baffle) of the range hood 101 facing the user.

[0046] For example, Figure 2 FIG. 5 is a schematic diagram of the installation position 1 of the projection device 103 provided by an embodiment of the present application. As Figure 2 shown, the projection device 103 is disposed at the middle line position of the body of the range hood 101 facing the user. On this basis, referring to Figure 2 , the projection areas 1 and 2 projected by the projection device 103 to both sides can be symmetrically distributed on the left and right sides of the range hood 101.

[0047] Preferably, the installation position of the projection device 103 on the range hood 101 can be a charging area, so as to charge the projection device 103 while the projection device 103 is disposed on the range hood 101. Among them, referring to Figure 2 , an adsorption charging component 104 is disposed on the charging area, and the charging component 104 can be a magnetic adsorption charging component.

[0048] It should be noted that, based on the above setting method of arranging the projection device 103 at the center line position of the body of the range hood 101, the projected images of the projection device 103 can be symmetrically distributed on both sides of the body of the range hood 101, thereby avoiding the occupation of the user's cooking area by the image projection area and ensuring the normal cooking experience of the user.

[0049] Optionally, in the second case, the projection device 103 is not arranged on the range hood 101, but the distance between the projection device 103 and the range hood 101 is less than or equal to a preset threshold.

[0050] Exemplarily, the preset threshold can be determined according to the suction range of the range hood 101, or can be determined according to the effective operation range of the user for the range hood 101 (i.e., the cooking area range). For example, the preset threshold can be the same as the suction range or the cooking area range of the range hood 101.

[0051] For example, Figure 3 is a schematic diagram of the setting position 2 of the projection device 103 provided by an embodiment of the present application. As Figure 3 shown, the projection device 103 is not arranged on the range hood 101, but is suspended above the range hood 101, where the distance between the projection device 103 and the range hood 101 is less than or equal to the suction range of the range hood 101.

[0052] Optionally, in the third case, the distance between the projection device 103 and the range hood 101 is greater than the preset threshold; where the preset threshold is similar to the preset threshold in the second case, and will not be elaborated here too much. ]>

[0053] For example, Figure 4 is a schematic diagram of the setting position 3 of the projection device 103 provided by an embodiment of the present application. As Figure 4 shown, the projection device 103 is arranged at the table near the range hood 101.

[0054] Based on the above preset range, Figure 5 is one of the schematic diagrams of the setting of the projection device 103 on the cooking stove 102 provided by an embodiment of the present application. As Figure 5 shown, the projection device 103 can be arranged at the center line of the panel of the cooking stove 102. Based on this, when the projection device 103 is in the projection state, relevant content is projected onto the projection area 1 and the projection area 2 that are symmetrically distributed on both sides of the cooking stove 102 respectively.

[0055] In another embodiment, Figure 6 is the second schematic diagram of the setting of the projection device 103 on the cooking stove 102 provided by an embodiment of the present application. As Figure 6 shown, the projection device 103 can be arranged at the left cooking stove on the cooking stove 102. Based on this, when the projection device 103 is in the projection state, relevant content is projected onto the projection area 1 and the projection area 2 around the left cooking burner respectively.

[0056] Exemplarily, the projection device 103 can be a movable, rechargeable, and network - connectable projection device in the range hood projection system 10, such as a projection speaker. Correspondingly, the user can remove it from the above - mentioned position 1 and move it to position 2 or position 3, or move it to the stove top 102, etc.

[0057] Specifically, Figure 7 is the front view schematic diagram of the projection device 103 provided by the embodiment of the present application. As Figure 7 shown, the projection device 103 includes an induction module 1031, a switch control 1032, a playback module 1033, and a processing module 1034. Among them, the processing module 1034 is electrically connected to the induction module 1031, the switch control 1032, and the playback module 1033 respectively.

[0058] In specific implementation, by turning on the switch control 1032 of the projection device 103, the induction module 1031 obtains the position information of the target object, the sound data generated by the target object, and the behavior data, etc. Then, the processing module 1034 analyzes the data obtained by the induction module 1031 to generate different projection results based on the analysis results of the data, and plays the audio data related to the projection content by using the playback module 1033 during the process of the projection device 103 projecting different projection contents.

[0059] Exemplarily, the projection device 103 can use the projection optical machine 1035 to realize the projection function to the projection area. For example, when realizing the bilateral projection of the projection device 103 (that is, projecting to both sides of the projection device 103), the projection optical machine 1035 can respectively emit projection images to the lens assemblies arranged on both sides of the projection device 103 to realize the projection function of the projection device 103.

[0060] Exemplarily, the projection optical machine 1035 can be built into the projection device 103. For example, Figure 8 is the side view schematic diagram of the projection device 103 provided by the embodiment of the present application. Two projection lenses 1036 can be symmetrically distributed on both sides of the projection device 103, that is, as Figure 8 (a) and as Figure 8 (b) shown, a projection lens 1036 is respectively arranged on the left and right sides of the projection device 103 to project projection content to both sides by the projection optical machine 1035 built into the projection device 103.

[0061] Exemplarily, the projection optical machine 1035 can be electrically connected to the processing module 1034 to receive the content to be projected sent by the processing module 1034, and convert the image signal to be projected into an optical signal and project it on the projection area. Specifically, the projection optical machine 1035 can be built - in with a WIFI module to realize the connection with the processing module 1034.

[0062] Correspondingly, when symmetric projection lenses 1036 are provided on both sides of the projection device 103, referring to Figure 1 , the left projection area 1011 and the right projection area 1012 symmetrically distributed on the range hood 101 can be the projection areas corresponding to the projection device 103, and the left projection area 1021 and the right projection area 1022 symmetrically distributed on the cooking stove 102 can also be the projection areas corresponding to the projection device 103. Among them, the left projection area 1021 and the right projection area 1022 of the cooking stove 102 can be respectively arranged corresponding to the left and right burners of the cooking stove 102.

[0063] Exemplarily, an optical curtain for displaying projection content is provided in each projection area of the above-mentioned range hood 101 or cooking stove 102. Specifically, the optical curtain is provided with a flexible pressure film to be able to identify the touch position of the user while the projection device 103 displays the projection content in each projection area.

[0064] Figure 9 A schematic flow chart of a projection method provided by an embodiment of the present application is shown as Figure 9 shown, and the method includes the following steps:

[0065] Step S901, the projection device 103 obtains the position information of the target object, and determines the target projection area from at least two projection areas based on the position information; the target projection area is the projection area closest to the target object among at least two projection areas.

[0066] In the embodiment of the present application, in order to enable the projection content of the projection range hood to adapt to the position change of the target object, the projection device 103 can be used to obtain the position information of the target object, so as to adjust the projection area for projecting relevant content to the target object based on the position information of the target object, so as to achieve the technical effect that the projection content moves with the movement of the target object (that is, the shadow follows the person), thereby reducing the limitation of the existing projection range hood projecting fixed content.

[0067] In a possible implementation manner, the projection device 103 can use the sensing module 1031 to obtain the position information of the target object, and send the position information of the target object to the processing module 1034, so that the processing module 1034 determines the projection area closest to the target object based on the position information, and determines this projection area as the target projection area. Among them, the target object can be a user within the preset range of the range hood 101 or the cooking stove 102.

[0068] Exemplarily, the position information of the target object may be represented as the relative position of the target object with respect to the range hood 101, the cooking range 102, or the projection device 103. Correspondingly, the processing module 1034 may determine the projection area closest to the target object based on the relative position of the target object with different components, and determine the projection area as the target projection area.

[0069] For example, when the position information of the target object is represented as the relative position of the target object with respect to the range hood 101 (i.e., taking the range hood 101 as a reference), Figure 10 is a schematic diagram of determining the target projection area provided by an embodiment of the present application. As Figure 10 shown, when there are symmetrically distributed left projection area 1011 and right projection area 1012 on both sides of the projection device 103, it can be known that the relative position of the target object with respect to the range hood 101 is on the left side of the range hood 101. Based on this, the left projection area 1011 closest to the target object can be determined as the target projection area.

[0070] Optionally, when the position information of the target object is represented as the relative position of the target object with respect to the projection device 103 (i.e., taking the projection device 103 as a reference), Figure 11 is another schematic diagram of determining the target projection area provided by an embodiment of the present application. As Figure 11 shown, the relative position of the target object with respect to the projection device 103 is on the left side of the projection device 103. Based on this, first, it can be determined that the projection area closest to the target object is on the left side. Then, when it is determined that the projection device 103 is provided on the range hood 101, the left projection area 1011 on the left side of the range hood 101 is determined as the target projection area.

[0071] Exemplarily, the sensing module 1031 is provided with at least one of a sensor device and a camera component to obtain the position information of the target object by using the sensor device or the camera component; wherein, the position information of the target object may be represented as the relative position of the target object with different components as described above. The sensor device is, for example, an infrared sensor, and the camera component is, for example, a camera.

[0072] Specifically, the behavior data generated by the target object may be obtained first by using the sensor device or the camera component, and the position information of the target object may be determined based on the behavior data; wherein, the behavior data generated by the target object may include user body posture, user gesture, and user posture, etc., which are not specifically limited herein.

[0073] Correspondingly, when the sensing module 1031 obtains the position information of the target object by using the camera component, the camera component may determine the position information of the target object based on the generation position of the behavior data of the target object. It can be understood that when the behavior data is generated on the left side of the camera component, the position information of the target object is determined to be on the left side of the projection device 103.

[0074] Optionally, when the sensing module 1031 uses the camera component to obtain the position information of the target object, the camera component may obtain an image containing the behavior data of the target object and send the obtained image to the processing module 1034, so that the processing module 1034 can identify the behavior data and / or the generation position of the behavior data in the image, thereby determining the position information of the target object; wherein, the behavior data is, for example, a preset user gesture. Correspondingly, when the user gesture is the preset gesture 1, the position information of the target object may be position 1.

[0075] Step S902, the projection device 103 determines the projection content of the target projection area based on the position information and projects the content to the target projection area.

[0076] In the embodiment of the present application, in order to make the projection content of the target projection area close to the target object more in line with the current needs of the target object, the projection device 103 may further determine the projection content corresponding to the position where the target object is located based on the position information of the target object as the projection content of the target projection area, so as to solve the problem that the required projection content of the target object during the cooking process does not match the projection content of the position where the target object is located.

[0077] In a possible implementation manner, the projection device 103 may first determine the candidate projection content based on its own projection mode, and then determine the projection content of the target projection area from the candidate projection content corresponding to different projection modes based on the position information of the target object.

[0078] Exemplarily, the projection device 103 may determine the current projection mode based on its own state parameters.

[0079] In the embodiment of the present application, the installation position of the projection device 103 can usually characterize the current needs of the target object for the projection content (for example, when the projection device 103 is installed on the range hood 101 or the cooking stove 102, it can characterize that the target object needs to project the operation controls of the range hood 101 or the cooking stove 102 by using the projection device 103), and different requirements for the projection content can correspond to different projection modes. Therefore, the projection mode can be used to characterize the functional content that the projection device 103 can project when it is in the current position, and this functional content is determined according to the functional requirements that the target object may use when it is in the position where the projection device 103 is located.

[0080] Specifically, the state parameters of the projection device 103 may be the position parameters, wind force parameters or temperature parameters of the projection device 103, etc.; the projection modes of the projection device 103 may include a cooking projection mode and a food preparation projection mode, etc., which are not specifically limited herein.

[0081] Exemplarily, the sensing module 1031 of the projection device 103 can be used to obtain the ambient information around the projection device 103, so as to determine the state parameters of the projection device 103 based on the obtained ambient information, and thus determine the current projection mode based on the position parameters.

[0082] Optionally, when the projection device 103 is in communication connection with other kitchen appliances within a preset distance, the processing module 1034 of the projection device 103 can be used to receive the ambient information sent by other kitchen appliances, so as to determine the state parameters of the projection device 103 based on the received ambient information, and thus determine the current projection mode based on the position parameters; wherein, the preset distance can correspond to the size of the projection device 103 itself.

[0083] Taking the state parameters of the projection device 103 including position parameters as an example:

[0084] In one embodiment, the imaging component in the sensing module 1031 can be used to obtain an image containing the environment around the projection device 103, so as to determine through image recognition technology that the position parameters of the projection device 103 specifically correspond to the range of the range hood or the countertop area, and thus determine the projection mode of the projection device 103 as the cooking projection mode or the food preparation projection mode.

[0085] In another embodiment, referring to Figure 1 , a charging component 104 for charging the projection device 103 is provided on the range hood 101 or the cooking stove 102. Based on this, the position parameters of the projection device 103 can be determined according to the charging state of the projection device 103, and thus the current projection mode can be determined based on the position parameters.

[0086] For example, when the projection device 103 is in a charging state, it can be determined that the position parameters of the projection device 103 are in the cooking area, and at this time, it can be determined that the projection mode of the projection device 103 is the cooking projection mode; when the projection device 103 is in an uncharged state, it can be determined that the position parameters of the projection device 103 are in the food preparation area, and at this time, it can be determined that the projection mode of the projection device 103 is the food preparation projection mode.

[0087] Taking the state parameters of the projection device 103 including wind force parameters as an example:

[0088] In one embodiment, the wind force sensor in the sensing module 1031 can be used to obtain the wind force intensity around the projection device 103, so as to determine that the projection device 103 is probably located in the countertop area when the wind force intensity is close to the preset wind force intensity, and at this time, determine the projection mode of the projection device 103 as the food preparation projection mode; or, when the wind force intensity differs greatly from the preset wind force intensity, it can be determined that the projection device 103 is probably located in the range hood area, and at this time, the projection mode of the projection device 103 can be determined as the cooking projection mode.

[0089] It should be noted that the preset wind intensity can be the normal indoor wind intensity.

[0090] In another embodiment, based on the wind intensity information sent by other kitchen appliances within the above-mentioned preset distance to the projection device 103, the current projection mode of the projection device 103 is determined.

[0091] It should be noted that the projection device 103 can receive the wind intensity information sent by multiple devices within the preset distance, and further determine the wind parameters according to the distance between each device and itself and the magnitude of the wind intensity, so as to further ensure the accuracy of the wind parameter results and reduce a certain error.

[0092] Taking the state parameter of the projection device 103 including the temperature parameter as an example:

[0093] In one embodiment, the temperature sensor in the induction module 1031 can be used to obtain the temperature around the projection device 103, so as to determine that the projection device 103 is probably in the countertop area when the temperature is close to the preset temperature. At this time, the projection mode of the projection device 103 is determined as the food preparation projection mode; or, when the temperature is quite different from the preset temperature, it can be determined that the projection device 103 is probably in the range hood area. At this time, the projection mode of the projection device 103 can be determined as the cooking projection mode.

[0094] It should be noted that the preset temperature can be the normal indoor temperature.

[0095] In another embodiment, based on the temperature-related information sent by other kitchen appliances within the above-mentioned preset distance to the projection device 103, the current projection mode of the projection device 103 is determined.

[0096] It should be noted that the projection device 103 can receive the temperature-related information sent by multiple devices within the preset distance, and further determine the temperature parameters according to the distance between each device and itself and the temperature level, so as to further ensure the accuracy of the temperature parameter results and reduce a certain error.

[0097] In the embodiments of the present application, the reason why the current projection mode of the projection device 103 can be determined by using the temperature parameter or the wind parameter of the projection device 103 is that when the projection device 103 is in the range hood area, the projection device 103 is usually turned on to project the operation controls on the range hood 101 or the cooking stove 102. Based on this, it can be inferred that when the projection device 103 is in the range hood area, at least one of the range hood 101 or the cooking stove 102 is in an operating state. At this time, the temperature or wind in the range hood area is usually quite different from the indoor temperature or indoor wind. Therefore, the temperature parameter or the wind parameter can be used as the basis for judging the current projection mode of the projection device 103.

[0098] Preferably, in order to ensure the accuracy of the current projection mode determination result of the projection device 103, on the basis of obtaining the temperature parameter or wind force parameter of the projection device 103, the charging state of the projection device 103 may be further obtained, so as to determine that the projection device 103 is in the range hood area when at least one of the temperature information or wind force intensity at the location where the projection device 103 is located differs greatly from the preset temperature or preset wind force and the projection device 103 is in the charging state.

[0099] In the embodiments of the present application, by obtaining the state parameters of the projection device 103, the projection mode of the projection device 103 can be adjusted in a timely manner according to the changes of the state parameters, so as to realize the automatic switching of the projection content, and improve the convenience of the user in using the projection range hood.

[0100] In another embodiment of the present application, a specific method for determining the projection content of the target projection area is further provided. Exemplarily, the "projection device 103 determines the projection content of the target projection area based on the position information" described above specifically includes: determining candidate projection content according to the current projection mode, and determining the projection content with the highest relevance to the position information in the candidate projection content as the projection content of the target projection area.

[0101] In the embodiments of the present application, by determining the projection content with a relatively high relevance to the position information of the target object in the candidate projection content, the projection content of the target projection area better meets the current needs of the target object.

[0102] Exemplarily, different projection modes correspond to different candidate projection contents. Among them, the candidate projection content includes at least one of operation control projection and user guidance image.

[0103] For example, as described in the above embodiments, the projection modes of the projection device 103 include a cooking area projection mode and a food preparation area projection mode. Correspondingly, when the projection mode of the projection device 103 is the cooking projection mode (that is, the position of the projection device 103 is in the range hood area), the projection content in the cooking projection mode is operation control projection and user guidance image.

[0104] When the projection mode of the projection device 103 is the food preparation projection mode (that is, the position of the projection device 103 is in the counter area), the projection content in the food preparation projection mode is the user guidance image.

[0105] Specifically, the operation control projection may include a range hood control projection or a stove control projection, etc.; the user guidance image may include a recipe recommendation image, a food preparation recommendation image, or a cooking teaching video, etc.

[0106] Exemplarily, according to the preset information corresponding to the position information of the target object, the projection content with the highest relevance to the preset information among the candidate projection contents can be determined as the projection content of the target projection area. Specifically, the preset information may include the preference settings when the target object is in the current position.

[0107] For example, Figure 12 is a schematic diagram of determining the projection content of the target projection area provided by an embodiment of the present application. Refer to Figure 12 , when the position information of the target object is used to indicate that the interval distances between the target object and the range hood 101 and the cooking stove 102 are both greater than a preset threshold (the preset threshold here can be the suction range or the cooking area range of the range hood 101 described above) and the target projection area is located on the right side of the projection device 103, the preset information can be that the target object is in the state of preparing ingredients. At this time, the user guidance image with the highest relevance to the state of preparing ingredients can be determined as the projection content of the right projection area.

[0108] Optionally, Figure 13 is another schematic diagram of determining the projection content of the target projection area provided by an embodiment of the present application. Refer to Figure 13 , when the position information of the target object is used to indicate that the interval distances between the target object and the range hood 101 and the cooking stove 102 are both less than or equal to the preset threshold and the target projection area is located on the left side of the projection device 103, the preset information can be that the target object is in the cooking state. At this time, the operation control projection with the highest relevance to the cooking state can be determined as the projection content of the left projection area 1021.

[0109] Exemplarily, according to the attribute information corresponding to the position information of the target object, the projection content with the highest relevance to the attribute information can be determined as the projection content of the target projection area.

[0110] For example, when the position information of the target object is used to indicate that the interval distances between the target object and the range hood 101 and the cooking stove 102 are both greater than the preset threshold, the attribute information corresponding to this position information can be the ingredient preparation area. At this time, the user guidance image with the highest relevance to the ingredient preparation area can be determined as the projection content of the target projection area.

[0111] Optionally, when the position information of the target object is used to indicate that the interval distances between the target object and the range hood 101 and the cooking stove 102 are both less than or equal to the preset threshold, the attribute information corresponding to this position information can be the cooking area. At this time, the operation control projection with the highest relevance to the cooking area can be determined as the projection content of the target projection area.

[0112] In another embodiment of the present application, a specific update method for the projection content of the target projection area is further provided. Exemplarily, the method further includes: when the projection content of the target projection area includes a range hood control projection or a stove control projection, receiving and responding to a range hood and stove linkage instruction for the target projection area, obtaining the matching state of the range hood 101 and the stove 102, and updating the projection content of the target projection area based on the matching state.

[0113] In the embodiments of the present application, the projection content of the target projection area can be updated based on the matching state of the range hood 101 and the stove 102, so as to realize the linkage control of the range hood 101 and the stove 102 when the range hood 101 and the stove 102 are in a matching state, which improves the convenience of controlling the projected range hood to a certain extent.

[0114] Exemplarily, when the projection content of the target projection area is a range hood control projection or a stove control projection (i.e., the projection mode is a cooking projection mode), the projection interface of the range hood control projection or the stove control projection further includes a range hood and stove linkage control, so that a range hood and stove linkage instruction can be generated according to the click operation on the range hood and stove linkage control received in the projection area.

[0115] Specifically, as described in the above embodiments, the projection area of the range hood 101 or the stove 102 is an optical curtain provided with a flexible pressure film, so it is possible to determine whether there is a click operation on the range hood and stove linkage control according to the change of the flexible pressure film pressure value.

[0116] For example, Figure 14 is a schematic diagram of the projection content of the projection device 103 provided by the embodiments of the present application. As Figure 14 shown, the projection content of the projection device 103 can be a stove control projection, and the stove control projection specifically includes a fire mode adjustment control, a fire size adjustment control, and a range hood and stove linkage control.

[0117] It should be noted that the range hood 101 or the stove 102 can be electrically connected to the projection device 103 to send a range hood and stove linkage instruction to the projection device 103 when a click operation on the range hood and stove linkage control is received in its own projection area.

[0118] Exemplarily, after the projection device 103 receives the range hood and stove linkage instruction, it can obtain the matching state of the range hood 101 and the stove 102, so as to update the projection content of the target projection area based on the matching state of the range hood 101 and the stove 102.

[0119] Specifically, when the range hood 101 and the stove 102 are in a matching state, the projection content of the target projection area can be updated to a stove control projection.

[0120] It should be noted that the projection content of the target projection area is updated to the projection of the stove control because when the range hood 101 and the stove 102 are in a matching state, when the stove 102 is turned on, the range hood 101 will also be turned on synchronously (i.e., the range hood and stove are linked).

[0121] Secondly, when the range hood 101 and the stove 102 are in a non-matching state, the projection content of the target projection area remains unchanged.

[0122] In another embodiment of the present application, a control method for the projection device 103 is also provided. Exemplarily, Figure 15 For the control flow schematic diagram of the projection device 103 provided by the embodiment of the present application, as Figure 15 shown, the control flow includes the following steps:

[0123] Step S1501, obtain the position information of the projection device 103.

[0124] Step S1502, obtain the position information of the target object.

[0125] Step S1503, based on the position information of the projection device 103 and the target object, determine the target projection area and the projection content of the target projection area from at least two projection areas.

[0126] In another embodiment of the present application, another projection method is also provided. Exemplarily, Figure 16 For another flow schematic diagram of the projection method provided by the embodiment of the present application, as Figure 16 shown, this method can be applied to the above-mentioned range hood and stove projection system 10, and the projection device 103 in the range hood and stove projection system 10 projects to both sides respectively. This method specifically includes the following steps:

[0127] Step S1601, obtain the position information of the projection device 103.

[0128] Exemplarily, the position information of the projection device 103 can be determined according to the charging state of the projection device 103.

[0129] Specifically, when the projection device 103 is in a charging state, it can be determined that the projection device 103 is located on the range hood 101 or the stove 102, and at this time, step S16021 can be executed; otherwise, it can be determined that the projection device 103 is located on the table near the range hood 101 or the stove 102, and at this time, step S16022 can be executed.

[0130] Step S16021, turn on the projection optical machine 1035 of the projection device 103 and project to both sides of the projection device 103.

[0131] Exemplarily, when the projection optical machine 1035 is in the on state, the projection optical machine 1035 projects default content to both sides respectively.

[0132] Step S16022: Use the projection device 103 to obtain the position information of the target object.

[0133] Step S16031: The projection optical machine 1035 projects the range hood control onto the left side.

[0134] Step S16032: The projection optical machine 1035 projects the user guidance image onto the right side.

[0135] Step S16033: Determine whether the position of the target object is on the left side of the projection device 103.

[0136] Exemplarily, if the position of the target object is on the left side of the projection device 103, then execute step S16042; otherwise, execute step S16043.

[0137] Step S16041: Receive and respond to the range hood - stove linkage instruction in the right - hand projection area.

[0138] Exemplarily, when the range hood - stove linkage instruction is received, then execute step S16051.

[0139] Step S16042: The projection optical machine 1035 projects to the left side and terminates projecting to the right side.

[0140] Step S16043: The projection optical machine 1035 projects to the right side and terminates projecting to the left side.

[0141] Step S16051: Determine whether the range hood 101 and the stove 102 are in a paired state.

[0142] Exemplarily, if the range hood 101 and the stove 102 are not in a paired state, then execute step S16061; otherwise, execute step S16062.

[0143] Step S16061: The projection optical machine 1035 continuously projects the range hood control onto the left side.

[0144] Step S16062: The projection optical machine 1035 projects the stove control onto the left side.

[0145] Step S16063: The projection optical machine 1035 projects the user guidance image.

[0146] For example, Figure 17 is the projection schematic diagram of the projection device 103 at the countertop provided by the embodiment of the present application. As Figure 17 shown, the projection device 103 uses the projection optical machine 1035 to project the user guidance image to the right side.

[0147] Step S16071: Use the projection device 103 to obtain the position information of the target object.

[0148] Step S16072: Use the projection device 103 to obtain the behavior data and audio data generated by the target object.

[0149] Exemplarily, the projection device 103 can be used to obtain the gestures or voices of the target object, so as to control the range hood 101 or the cooking stove 102 through voice or gestures.

[0150] Step S1608: Determine whether the position of the target object is on the left side of the projection device 103.

[0151] Exemplarily, if the position of the target object is on the left side of the projection device 103, then execute Step S16091; otherwise, execute Step S16092.

[0152] Step S16091: The projection optical machine 1035 projects the range hood control projection / cooking stove control projection to the left, and the projection optical machine 1035 projects the user guidance image to the right.

[0153] Step S16042: The projection optical machine 1035 projects the user guidance image to the left, and the projection optical machine 1035 projects the range hood control projection / cooking stove control projection to the right.

[0154] The following refers to Figure 18 , Figure 18 shows a schematic structural diagram of a computer device suitable for implementing the embodiments of the present application. As Figure 18 shown, the computer system 1800 includes a central processing unit (CPU) 1801, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 1802 or the program loaded from the storage section 1809 into the random access memory (RAM) 1803. In the RAM 1803, various programs and data required for the operation instructions of the system are also stored. The CPU 1801, ROM 1802, and RAM 1803 are connected to each other through the bus 1804. The input / output (I / O) interface 1805 is also connected to the bus 1804.

[0155] The following components are connected to the I / O interface 1805: an input section 1806 including a keyboard, a mouse, etc.; an output section 1807 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc. and a speaker, etc.; a storage section 1808 including a hard disk, etc.; and a communication section 1809 including a network interface card such as a LAN card, a modem, etc. The communication section 1809 performs communication processing via a network such as the Internet. A drive 1810 is also connected to the I / O interface 1805 as needed. A removable medium 1811, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is mounted on the drive 1810 as needed so that a computer program read therefrom can be installed into the storage section 1808 as needed.

[0156] Specifically, according to an embodiment of the present application, the processes described above with reference to the flowchart Figure 9 , Figures 15 - 16 can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes program codes for performing the method shown in the flowchart. In such an embodiment, the computer program includes program codes for performing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication section 1809, and / or installed from the removable medium 1811. When the computer program is executed by a central processing unit (CPU) 1801, the above functions defined in the system of the present application are performed.

[0157] It should be noted that the computer-readable medium shown in this application can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this application, the computer-readable storage medium can be any tangible medium that contains or stores a program, and this program can be used by or in combination with an instruction execution system, apparatus, or device. In this application, the computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than the computer-readable storage medium, and this computer-readable medium can send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0158] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operation instructions of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in the flowchart or block diagram can represent a module, a program segment, or a part of code, and the foregoing module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than marked in the accompanying drawings. For example, two connected blocks can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for executing the specified functions or operation instructions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0159] The units or modules involved in the embodiments of the present application can be implemented in software or in hardware. The described units or modules can also be provided in a processor. For example, it can be described as: a processor includes a semantic extraction unit, a weight assignment unit, and a determination unit. Among them, the names of these units or modules do not constitute a limitation to the units or modules themselves in certain cases.

[0160] On the other hand, the present application also provides a computer-readable storage medium, which can be included in the computer device described in the above embodiments, or can exist alone without being assembled into the computer device. The above computer-readable storage medium stores one or more programs, and when the above programs are executed by one or more processors to perform the methods described in the present application. For example, it can execute Figure 9 , Figures 15 - 16 each step of the method shown.

[0161] The embodiments of the present application provide a computer program product, which includes instructions that, when run, cause the methods described in the embodiments of the present application to be executed. For example, it can execute Figure 9 , Figures 15 - 16 each step of the method shown.

[0162] The above description is only the preferred embodiments of the present application and the description of the applied technical principles. Those skilled in the art should understand that the scope of disclosure involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the foregoing disclosure concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present application.

Claims

1. A projection method, characterized in that, Applied to a smoke and stove projection system, the smoke and stove projection system includes a range hood, a stove top, and a projection device disposed within a preset range of the range hood or the stove top, and the projection device is configured to project onto at least two projection areas; The projection device obtains position information of a target object, and determines a target projection area from the at least two projection areas based on the position information; The target projection area is the projection area closest to the target object among the at least two projection areas; The projection device determines projection content of the target projection area based on the position information, and projects the projection content onto the target projection area.

2. The method according to claim 1, wherein The projection device is provided with a sensing module, and the projection device obtains position information of a target object, including: Obtaining behavior data of the target object by using the sensing module; Based on the behavior data, determining the position information of the target object; the sensing module includes at least one of the following: a camera component and a sensor device.

3. The method according to claim 1, characterized in that The projection device determines projection content of the target projection area based on the position information, including: Determining candidate projection content according to the current projection mode, and determining the projection content with the highest relevance to the position information among the candidate projection content as the projection content of the target projection area; the candidate projection content includes at least one of operation control projections and user guidance images.

4. The method according to claim 3, characterized in that, The method further includes: Obtaining state parameters of the projection device, and determining the current projection mode of the projection device based on the state parameters; the state parameters include at least one of the following: position parameters, wind force parameters, and temperature parameters.

5. The method according to claim 3, characterized in that, The determining candidate projection content according to the current projection mode includes: If the current projection mode is a cooking projection mode, the candidate projection content is operation control projections and user guidance images; if the current projection mode is a food preparation projection mode, the candidate projection content is user guidance images.

6. The method according to claim 5, characterized in that, The determining the projection content with the highest relevance to the position information among the candidate projection content as the projection content of the target projection area includes: If the position information indicates a cooking area, the projection content with the highest relevance to the position information is an operation control projection; if the position information indicates a food preparation area, the projection content with the highest relevance to the position information is a user guidance image.

7. The method according to claim 3, characterized in that, The operation control projection includes a range hood control projection or a stove top control projection.

8. The method according to claim 7, wherein The method further includes: In the case where the projection content of the target projection area includes the range hood control projection or the stove top control projection, receiving and responding to a smoke and stove linkage instruction of the target projection area, obtaining a matching state of the range hood and the stove top, and updating the projection content of the target projection area based on the matching state.

9. A projection device, characterized in that, The projection device includes a sensing module and a processing module electrically connected to the sensing module; the sensing module is configured to obtain position information of a target object, and the processing module is configured to execute the method according to any one of claims 1-8 based on the position information.

10. A smoke and stove projection system, characterized in that, The above-mentioned range hood and stove projection system includes a range hood, a stove, and the projection device as described in claim 9 provided within a preset range of the range hood or the stove.

Images