Smoke stove linkage method, knob assembly and stove

Abstract

The invention provides a range hood and stove linkage method, a knob assembly and a stove, is applied to the knob assembly, and relates to the technical field of smart home. The knob assembly comprises a knob and at least two electronic tags, the knob comprises a radio frequency card reader and a Bluetooth module, the knob is coupled with the kitchen range, the electronic tags are arranged on the face, opposite to the knob, of the kitchen range, the Bluetooth module is used for being in communication connection with the range hood, and tag information corresponding to different operation states of the kitchen range is stored in the electronic tags respectively; the method comprises the steps that label information of an electronic label at a corresponding position is read in response to rotation of a radio frequency card reader along with a rotary knob, and the read label information is sent to a range hood through a Bluetooth module, so that the range hood obtains the operation state of a kitchen range and makes a response; the knob with the communication function is used for replacing a knob of an existing stove and is matched and linked with the range hood with the linkage function, all equipment does not need to be updated, the purchase pressure of customers is reduced, and the experience is improved.

Description

Technical Field

[0001] This invention relates to the field of smart home technology, and in particular to a method for linking a range hood and a cooktop, a knob assembly, and a cooktop. Background Technology

[0002] The linkage between the range hood and cooktop is one of the development trends of smart homes. During use, the range hood can automatically adjust the fan speed according to the heat output of the cooktop, bringing great convenience to users.

[0003] The existing method for achieving cooktop-range hood linkage involves a controller installed in the cooktop acquiring its operating status and sending it to the linked cooktop. The cooktop then adjusts its operation accordingly. However, this linkage method requires specialized hardware, making it difficult to achieve linkage between products of different price points and brands. Furthermore, cooktops and cooktops with linkage functionality are often sold bundled together, resulting in higher purchase costs, greater financial burden, and a less than ideal customer experience. Summary of the Invention

[0004] The purpose of this invention is to provide a method for linking a range hood and a cooktop, a knob assembly, and a cooktop, which replaces the existing cooktop knob with a knob that has communication function, and pairs and links with a range hood that has linkage function. This eliminates the need to update all equipment, reduces the purchase burden on customers, and improves the experience.

[0005] In a first aspect, the present invention provides a method for linking a range hood and a cooktop, applied to a knob assembly. The knob assembly includes a knob and at least two electronic tags. The knob includes an RFID reader and a Bluetooth module. The knob is coupled to the cooktop. The electronic tags are disposed on the side of the cooktop opposite the knob. The Bluetooth module is used for communication with the range hood. The electronic tags store tag information corresponding to different operating states of the cooktop. The method includes: In response to the RFID reader reading the tag information of the electronic tag at the corresponding position as the knob is rotated, the read tag information is sent to the range hood via the Bluetooth module so that the range hood can know the operating status of the stove and respond accordingly.

[0006] In some preferred embodiments of the present invention, the electronic tag includes a first electronic tag; the first tag information corresponding to the first electronic tag is used to indicate the activation of the stove; the step of sending the read tag information to the range hood via a Bluetooth module so that the range hood can be aware of the operating status of the stove and respond accordingly includes: Send the first tag information to the range hood to put the range hood into power-on mode.

[0007] In some preferred embodiments of the present invention, the electronic tag includes a second electronic tag; the second tag information corresponding to the second electronic tag is used to indicate that the stove is turned off; the step of sending the read tag information to the range hood via a Bluetooth module so that the range hood can know the operating status of the stove and respond includes: Send the second tag information to the range hood so that the range hood will enter the off mode.

[0008] In some preferred embodiments of the present invention, the electronic tag includes a third electronic tag; the third tag information corresponding to the third electronic tag is used to indicate the first gear position of the stove; the step of sending the read tag information to the range hood via a Bluetooth module so that the range hood can know the operating status of the stove and respond includes: The third tag information is sent to the range hood so that the range hood operates at the second setting, which corresponds to the first setting.

[0009] In some preferred embodiments of the invention, the knob further includes a photovoltaic panel assembly for receiving light energy from outside the knob and converting the light energy into electrical energy for the knob's use.

[0010] In some preferred embodiments of the present invention, the photovoltaic panel assembly includes a photovoltaic panel, a storage capacitor, and a power management unit; the photovoltaic panel is used to convert light energy into electrical energy, the storage capacitor is used to store the converted electrical energy, and the power management unit is used to manage the storage and output of electrical energy.

[0011] In some preferred embodiments of the invention, the knob is coupled to the cooktop via a valve stem; at least two electronic tags are spaced apart around the valve stem and at least partially surround the valve stem.

[0012] In some preferred embodiments of the present invention, the knob further includes a pressure sensor disposed on the axis of the valve stem, and the method further includes: In response to a pressing operation on the knob along the axis, the operating mode of the knob assembly is determined, including at least: low power mode and / or Bluetooth pairing mode.

[0013] Secondly, the present invention provides a knob assembly for performing the range hood and stove linkage method provided in the first aspect above.

[0014] Thirdly, the present invention provides a cooktop, which is provided with the knob assembly provided in the second aspect above; the knob assembly is connected to the range hood via a Bluetooth module.

[0015] This invention brings the following beneficial effects: This invention provides a method for linking a range hood and a cooktop, a knob assembly, and a cooktop. The knob assembly includes a knob and at least two electronic tags. The knob includes an RFID reader and a Bluetooth module. The knob is coupled to the cooktop. The electronic tags are located on the side of the cooktop opposite the knob. The Bluetooth module is used for communication with the range hood. The electronic tags store tag information corresponding to different operating states of the cooktop. The method includes: responding to the RFID reader reading the tag information of the electronic tag at the corresponding position as the knob rotates; and sending the read tag information to the range hood via the Bluetooth module, so that the range hood is aware of the cooktop's operating status and responds accordingly. Replacing the existing cooktop knob with a communication-enabled knob allows for pairing and linkage with a range hood that has a linkage function, eliminating the need to update all equipment, reducing customer purchase pressure, and improving the user experience. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of a knob assembly provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a knob provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of another knob provided in an embodiment of the present invention.

[0018] Icons: 1-Knob; 11-Valve stem; 12-Photovoltaic panel; 2-Electronic tag; 21-First electronic tag; 22-Second electronic tag; 23-Third electronic tag. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments 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, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] 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, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 this invention based on the specific circumstances.

[0025] In the related art, for a cooker and a range hood to achieve the linkage function, usually they need to be products of the same brand manufacturer to ensure the consistency of the communication protocol. However, this restricts the user's independent choice to a certain extent. That is, when the user only has a cooker of brand A, in order to achieve the linkage function, they have to buy a range hood of the same brand. By adopting the solution in this embodiment, when the user only has a cooker of brand A, they can choose to buy a range hood of brand B, and the manufacturer of brand B can provide the knob assembly in this embodiment of the present invention to the user by way of gift or tying sale. Since the knob assembly in this embodiment of the present invention can obtain the operating state of the cooker of brand A and can send the corresponding operating state to the range hood of brand B through the communication module, the user can achieve the cross-brand device linkage function without replacing the cooker of brand A, which greatly enhances the user's independent choice and improves the product usage experience.

[0026] The following will describe some embodiments of the present invention in detail with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0027] Embodiment 1 The embodiment of the present invention provides a method for linkage between a range hood and a cooker, which is applied to a knob assembly. The knob assembly includes a knob 1 and at least two electronic tags 2. The knob 1 includes a radio frequency card reader and a Bluetooth module. The knob 1 is coupled to the cooker. The electronic tags 2 are arranged on the surface of the cooker opposite to the knob 1. The Bluetooth module is used for communication connection with the range hood. The electronic tags 2 respectively store tag information corresponding to different operating states of the cooker.

[0028] Specifically, refer to Figure 1 the structural schematic diagram of a knob assembly provided by the embodiment of the present invention as shown. The knob assembly includes a knob 1 and an electronic tag 2. The knob 1 is coupled to the cooker through a valve rod 11. The electronic tag 2 is arranged on the surface of the cooker opposite to the knob 1, such as the horizontal tabletop of the cooker. The electronic tag 2 is an NFC patch and stores tag information corresponding to different operating states of the cooker, such as on, off, and gear. The radio frequency card reader (such as an NFC card reader) rotates with the knob 1 to read the tag information. The Bluetooth module is used for communication connection with the range hood to send the tag information to the range hood, so that the range hood can learn the operating state of the cooker and make a response.

[0029] Furthermore, in some preferred embodiments of the present invention, the electronic tag 2 is an NFC patch; the NFC patch is attached or adsorbed on the surface of the cooker opposite to the knob 1, and the radio frequency card reader is an NFC card reader.

[0030] Specifically, the NFC patch can be attached to the side of the cooktop opposite the knob 1 using adhesive or magnetic means. This first surface is the side of the cooktop opposite the knob 1; for example, the first surface can be the horizontal surface of the cooktop, or it can be the side wall of the range hood. Those skilled in the art will understand that the first surface can be horizontal, vertical, or inclined. The NFC patch only stores tag information and does not require an external power supply. An NFC reader reads the NFC patch to obtain the stored tag information.

[0031] Based on this, the method includes: in response to the radio frequency card reader reading the tag information of the electronic tag 2 at the corresponding position as the knob 1 rotates, sending the read tag information to the range hood via the Bluetooth module, so that the range hood can know the operating status of the stove and respond accordingly.

[0032] Specifically, when the user turns knob 1, the RFID reader reads the tag information of the electronic tag 2 at the corresponding location, and then sends the tag information to the range hood via Bluetooth. After receiving the tag information, the range hood adjusts its working state according to preset linkage rules. For example, if the tag information indicates that the stove is on, the range hood enters the on mode; if it indicates that it is off, the range hood enters the off mode; if it indicates a specific setting, the range hood adjusts to the corresponding setting.

[0033] Furthermore, in some preferred embodiments of the present invention, the electronic tag 2 includes a first electronic tag 21; the first tag information corresponding to the first electronic tag 21 is used to indicate the turning on of the stove; the step of sending the read tag information to the range hood via the Bluetooth module so that the range hood knows the operating status of the stove and responds includes: sending the first tag information to the range hood so that the range hood enters the power-on mode.

[0034] For details, please refer to [link / reference]. Figure 1 The tag information stored in the first electronic tag 21 is the first operating state "on". After the radio frequency card reader reads the tag information in the first electronic tag 21, it sends the "on" tag information to the range hood via the Bluetooth module. After the range hood obtains the tag information, it enters the power-on mode, thereby realizing that the range hood automatically starts when the stove is turned on.

[0035] Furthermore, in some preferred embodiments of the present invention, the electronic tag 2 includes a second electronic tag 22; the second tag information corresponding to the second electronic tag 22 is used to indicate the stove being turned off; the step of sending the read tag information to the range hood via the Bluetooth module so that the range hood knows the operating status of the stove and responds includes: sending the second tag information to the range hood so that the range hood executes the off mode.

[0036] For details, please refer to [link / reference]. Figure 1The tag information stored in the second electronic tag 22 is the second operating state "off". After the radio frequency card reader reads the tag information in the second electronic tag 22, it sends the "off" tag information to the range hood via the Bluetooth module. After the range hood obtains the tag information, it enters the off mode. This mode can be to turn off the range hood directly or to turn off the range hood after a preset delay.

[0037] Furthermore, in some preferred embodiments of the present invention, the electronic tag 2 includes a third electronic tag 23; the third tag information corresponding to the third electronic tag 23 is used to indicate the first gear position of the stove; the step of sending the read tag information to the range hood via the Bluetooth module so that the range hood can know the operating status of the stove and respond includes: sending the third tag information to the range hood so that the range hood can operate at the second gear position, wherein the second gear position corresponds to the first gear position.

[0038] For details, please refer to [link / reference]. Figure 1 The third electronic tag 23 is used to indicate the operating level of the stove, such as "high heat", "medium heat" and "low heat" in a gas stove. When the RFID reader reads the tag information in the third electronic tag 23, it sends the corresponding tag information to the range hood via Bluetooth module. The range hood then adjusts to the corresponding second level according to the first level. For example, when the stove is on "high heat", the range hood is adjusted to the "stir-fry" level to remove a large amount of oil fumes.

[0039] Furthermore, in some preferred embodiments of the present invention, the knob 1 further includes a photovoltaic panel 12 assembly, which is used to receive light energy from outside the knob 1 and convert the corresponding light energy into electrical energy for the use of the knob 1.

[0040] Specifically, the photovoltaic panel 12 in the knob 1 is used to receive light energy from outside the knob 1 and convert it into electrical energy to power the knob 1. The photovoltaic panel 12 can be a very thin, small-area flexible amorphous silicon photovoltaic film, embedded or attached to the top and / or side of the knob 1, ensuring aesthetics while effectively collecting light energy. This reduces dependence on external power sources and improves battery life.

[0041] Furthermore, in some preferred embodiments of the present invention, the knob 1 further includes: a microcontroller and a power module; the power module can be charged by electrical energy converted from the photovoltaic panel 12 assembly; the power module and / or the photovoltaic panel 12 assembly are used to supply power to the load.

[0042] Specifically, the microcontroller can monitor the voltage of the power module and the voltage of the electrical energy converted by the photovoltaic panel 12 in real time, thereby determining the current energy supply status and dynamically adjusting the working mode of the knob 1 according to the energy supply status. When the energy is sufficient, all functions operate normally. When the energy is insufficient, the microcontroller actively reduces the operating frequency of the RFID reader, shuts down non-core functions, and extends the interval of RFID signal transmission to maximize the working time. When there is no light for a long time and the energy is exhausted, the microcontroller enters a deep sleep state, retaining only the most basic wake-up circuit to work, with extremely low power consumption. The power module and the photovoltaic panel 12 jointly supply power to the load. Under normal lighting conditions, the electrical energy generated by the photovoltaic panel 12 directly supplies the load on one hand and charges the power module on the other. This reduces the pressure on the power module and improves system efficiency. When the lighting changes or the load power surges, the photovoltaic panel 12 and the power module supply power to the load simultaneously. In the absence of light or low light environment, the power module supplies power to the load entirely, ensuring the continuity of function.

[0043] Furthermore, in some preferred embodiments of the present invention, the photovoltaic panel 12 assembly includes a photovoltaic panel 12, a storage capacitor, and a power management unit; the photovoltaic panel 12 is used to convert light energy into electrical energy, the storage capacitor is used to store the converted electrical energy, and the power management unit is used to manage the storage and output of electrical energy.

[0044] Specifically, the photovoltaic panel 12 module includes a photovoltaic panel 12, a storage capacitor, and a power management unit. The photovoltaic panel 12 converts solar energy into electrical energy, the storage capacitor (such as a supercapacitor) stores the converted electrical energy, and the power management unit manages the storage and output of electrical energy. The power management unit monitors the output of the photovoltaic panel 12 in real time and dynamically adjusts its operating point to ensure stable power supply. The electrical energy generated by the photovoltaic panel 12 is preferentially supplied directly to the load, and excess energy is used to charge the capacitor; when the photovoltaic panel 12 generates insufficient power, it seamlessly switches to the capacitor to supply power to the load.

[0045] Furthermore, in some preferred embodiments of the present invention, the knob 1 includes: a housing; the photovoltaic panel 12 assembly, the load, the microcontroller, and the power module are all encapsulated in the housing; a light-transmitting area is provided on the housing corresponding to the position of the photovoltaic panel 12 assembly, so that the photovoltaic panel 12 assembly receives the corresponding light energy through the light-transmitting area.

[0046] Specifically, the photovoltaic panel 12, load, microcontroller, and other components are all encapsulated in a housing, which protects these fragile electronic components from physical impacts, dust, liquids, static electricity, and other damage. The housing also supports the electronic components, such as supporting the installation of the photovoltaic panel 12; and it hides the wiring and electronic components, maintaining a clean appearance.

[0047] The top or sides of the entire housing are made of translucent / transparent materials (such as transparent PC, acrylic, glass, etc.), and the internal components are hidden by a light-shielding coating or internal structure, with only the area corresponding to the photovoltaic panel 12 exposed to light.

[0048] Furthermore, in some preferred embodiments of the present invention, the photovoltaic panel 12 is made of a flexible material, and the photovoltaic panel 12 surrounds the valve stem 11 and is disposed against the side wall of the housing.

[0049] For details, see Figure 2 The illustrated embodiment of the present invention provides a schematic diagram of a knob 1, in which a photovoltaic panel 12 surrounds a valve stem 11 and is abutted against the side wall of the housing. Since the photovoltaic panel 12 is on the side wall, the corresponding area of ​​the side wall of the housing must also be a "light-transmitting area". This part of the side wall may need to be made of a semi-transparent frosted material or a dark high-transmittance filter.

[0050] Furthermore, in some preferred embodiments of the present invention, the photovoltaic panel 12 is attached to the wall surface of the housing on the side away from the stove.

[0051] For details, see Figure 3 The diagram shown is a structural schematic of another knob 1 provided in an embodiment of the present invention. The photovoltaic panel 12 is attached to the wall surface of the housing away from the stove. Figure 3 In the middle, that is, the top of knob 1. Similarly, the corresponding area on the top of the housing is configured as a "light-transmitting area".

[0052] Furthermore, in some preferred embodiments of the present invention, the knob assembly further includes an indicator light; the method further includes adjusting the state of the indicator light in response to a change in the operating mode of the knob assembly.

[0053] Specifically, the indicator light can be located inside knob 1, and the housing on knob 1 corresponding to the indicator light can be transparent. The display status of the indicator light can represent the working status of the stove. For example, when the indicator light flashes once per second, it indicates that the knob assembly is in pairing mode, broadcasting pairing information or establishing encrypted communication; when the indicator light stays on for 3 seconds, it indicates that the current knob assembly has completed pairing and the pairing is successful; when the indicator light flashes twice per second for 3 seconds, it indicates that the pairing has been successfully deleted and a new round of pairing can begin; when the indicator light flashes once every 15 seconds, it indicates that the current knob assembly is in standby mode, which also indicates that the corresponding stove is off; when the knob assembly is in working mode, the indicator light flashes once every 5 seconds. Users can clearly understand the current status of knob 1.

[0054] Furthermore, in some preferred embodiments of the present invention, the knob 1 is coupled to the stove via the valve stem 11; at least two electronic tags 2 are spaced apart around the valve stem 11 and at least partially surround the valve stem 11.

[0055] Specifically, knob 1 is coupled to the cooktop via valve stem 11, and electronic tags 2 are spaced around valve stem 11, at least partially surrounding it. The electronic tags 2 are small, independent circular patches, spaced apart around valve stem 11 and partially surrounding it. This arrangement allows users to accurately attach the electronic tags 2 to the corresponding locations on the cooktop surface based on the tag information, such as the on / off, power setting, or other markings on the cooktop.

[0056] Furthermore, in some preferred embodiments of the present invention, the knob 1 further includes a pressure sensor disposed on the axis of the valve stem 11, and the method further includes: in response to a pressing operation on the knob 1 along the axis, determining an operating mode of the knob assembly, the operating mode including at least: a low power mode and / or a Bluetooth pairing mode.

[0057] Specifically, a pressure sensor is positioned on the axis of valve stem 11 to sense pressing operations along the axis of knob 1. When the user presses knob 1, the pressure sensor generates an electrical signal, and the controller responds to the pressing operation to determine the operating mode of the knob assembly. For example, a single press may adjust the transmission frequency of the communication module from low to high, multiple consecutive presses may activate Bluetooth pairing mode, and a long press may disconnect the connection. Operating modes include low-power mode and Bluetooth pairing mode, etc., to optimize energy consumption and user operation.

[0058] This invention provides a method for linking a cooktop and a range hood, applied to a knob assembly. The knob assembly includes a knob 1 and at least two electronic tags 2. The knob 1 includes an RFID reader and a Bluetooth module. The knob 1 is coupled to the cooktop. The electronic tags 2 are located on the side of the cooktop opposite to the knob 1. The Bluetooth module is used for communication with the range hood. The electronic tags 2 store tag information corresponding to different operating states of the cooktop. The method includes: in response to the RFID reader reading the tag information of the electronic tag 2 at the corresponding position as the knob 1 rotates, sending the read tag information to the range hood via the Bluetooth module, so that the range hood can know the operating status of the cooktop and respond accordingly; replacing the existing knob 1 of the cooktop with a knob 1 that has communication function, and pairing and linking it with a range hood that has linkage function, does not require updating all equipment, reduces the purchase pressure on customers, and improves the experience.

[0059] Example 2 Based on the above embodiments, this invention provides a knob assembly for executing the range hood and stove linkage method provided in the above embodiments.

[0060] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the knob assembly described above can be referred to the corresponding process in the aforementioned embodiments of the range hood and stove linkage method, and will not be repeated here.

[0061] Example 3 Based on the above embodiments, this invention provides a cooktop, which is equipped with the knob assembly provided in the above embodiments; the knob assembly is connected to the range hood via a Bluetooth module.

[0062] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the stove described above can be referred to the corresponding process in the aforementioned embodiments of the range hood and stove linkage method and the knob assembly, and will not be repeated here.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for linking a cooking stove and a smoke, the method comprising: The application is applied to a knob assembly, the knob assembly comprises a knob and at least two electronic tags, the knob comprises a radio frequency card reader and a Bluetooth module, the knob is coupled with a stove, the electronic tags are arranged on a side of the stove opposite to the knob, the Bluetooth module is used for communication connection with an extractor hood, the electronic tags respectively store tag information corresponding to different operating states of the stove, and the method comprises the following steps: In response to reading the tag information of the electronic tags at corresponding positions by the radio frequency card reader with the rotation of the knob, the read tag information is sent to the extractor hood through the Bluetooth module, so that the extractor hood learns the operating state of the stove and responds.

2. The smoke stove linkage method according to claim 1, characterized in that, The electronic tags comprise a first electronic tag, and first tag information corresponding to the first electronic tag is used for indicating the opening of the stove. The step of sending the read tag information to the extractor hood through the Bluetooth module so that the extractor hood learns the operating state of the stove and responds comprises the following steps: The first tag information is sent to the extractor hood, so that the extractor hood enters a start mode.

3. The smoke stove linkage method according to claim 1, characterized in that, The electronic tags comprise a second electronic tag, and second tag information corresponding to the second electronic tag is used for indicating the closing of the stove. The step of sending the read tag information to the extractor hood through the Bluetooth module so that the extractor hood learns the operating state of the stove and responds comprises the following steps: The second tag information is sent to the extractor hood, so that the extractor hood executes a closing mode.

4. The smoke stove linkage method according to claim 1, characterized in that, The electronic tags comprise a third electronic tag, and third tag information corresponding to the third electronic tag is used for indicating a first gear of the stove. The step of sending the read tag information to the extractor hood through the Bluetooth module so that the extractor hood learns the operating state of the stove and responds comprises the following steps: The third tag information is sent to the extractor hood, so that the extractor hood works in a second gear, wherein the second gear corresponds to the first gear.

5. The smoke range linkage method according to claim 1, wherein, The knob further comprises a photovoltaic panel assembly, which is used for receiving light energy from outside the knob and converting the corresponding light energy into electric energy for use of the knob.

6. The smoke stove linkage method according to claim 5, characterized in that, The photovoltaic panel assembly comprises a photovoltaic panel, a storage capacitor and a power management unit, the photovoltaic panel is used for converting light energy into electric energy, the storage capacitor is used for accumulating the converted electric energy, and the power management unit is used for managing the accumulation and output of the electric energy.

7. The smoke stove linkage method according to any one of claims 1 to 6, characterized in that, The knob is coupled with the stove through a valve rod, and the at least two electronic tags are arranged around the valve rod at intervals and at least partially surround the valve rod.

8. The smoke stove linkage method according to claim 7, characterized in that, The knob further comprises a pressure sensor arranged on an axis of the valve rod, and the method further comprises the following steps: In response to a pressing operation of the knob along the axis, a working mode of the knob assembly is determined, and the working mode at least comprises a low-power-consumption mode and / or a Bluetooth pairing mode.

9. A knob assembly, characterized by A method for executing the stove-extractor hood linkage method according to any one of claims 1 to 8.

10. A hob, characterized in that The knob assembly as claimed in claim 9 is arranged on the stove; and the knob assembly is in communication connection with the range hood through a Bluetooth module.

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