Control method and system of a hob knob, hob knob and hob

Abstract

The application discloses a control method and system of a cooking range knob, the cooking range knob and a cooking range. The cooking range knob comprises a knob body. The control method comprises the following steps: acquiring a rotation angle of the knob body; and driving the knob body to rotate to an initial position if it is determined according to the rotation angle that the knob body is not at the initial position and the cooking range is in an off state. The application provides a control method of a cooking range knob. In the control method, the knob body is driven to rotate to the initial position if the cooking range is off, thereby improving the user experience and the safety of the cooking range.

Description

Technical Field

[0001] This invention relates to the field of cooktop technology, specifically to a method, system, knob, and cooktop control system for cooktop knobs. Background Technology

[0002] Currently, most cooktop knobs on the market are purely mechanical. Detecting the rotation angle of these knobs requires the use of a three-axis or six-axis gyroscope, which is costly and limited in its widespread application. Furthermore, users encounter several issues when using cooktop knobs, reducing the user experience:

[0003] (1) After the stove is turned off, the gas valve closes automatically, but the stove knob is still in the open position and cannot be automatically reset. There is no clear flameout reminder, so the user is unlikely to notice that the stove is in an accidental flameout state.

[0004] (2) After the stove is turned off, the gas valve will automatically close, but there is no step to detect the concentration of combustible gas. If the concentration of combustible gas is too high, the user may accidentally perform the ignition operation when manually resetting the stove knob, which may cause unnecessary harm to the user. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect that the stove knob is a purely mechanical structure in the prior art and cannot automatically reset when the stove is turned off, and to provide a control method, system, stove knob and stove.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] This invention provides a method for controlling a stove knob, the stove knob comprising a knob body, the control method comprising:

[0008] Obtain the rotation angle of the knob body;

[0009] If the knob body is not in the initial position based on the rotation angle, and the stove is in the off state, then the knob body is driven to rotate to the initial position.

[0010] Optionally, the knob body includes a knob and a valve stem. The knob is divided into an upper part and a lower part. The upper part of the knob is connected to the valve stem, and the lower part of the knob is fixed to the stove panel.

[0011] The stove knob also includes a first gear and a reset component. The reset component includes a second gear and a first stepper motor. The first gear is disposed on the valve stem, and the second gear is disposed on the rotor shaft of the first stepper motor and meshes with the first gear.

[0012] The step of driving the knob body to rotate to the initial position specifically includes:

[0013] Control the first stepper motor to rotate at a corresponding first angle, so as to drive the knob body to rotate to the initial position.

[0014] Optionally, the control method further includes:

[0015] Detecting the concentration of combustible gases;

[0016] If the concentration is higher than the concentration threshold, the knob body is locked to prevent ignition.

[0017] Optionally, the control method further includes:

[0018] If the concentration drops below the concentration threshold when the knob body is locked, the knob body is unlocked.

[0019] Optionally, the stove knob further includes a locking component, which includes a locking unit and a second stepper motor, the locking unit being disposed on the rotor shaft of the second stepper motor;

[0020] The step of locking the knob body specifically includes:

[0021] The second stepper motor is controlled to rotate at a corresponding second angle, thereby driving the locking unit to rotate closer to the bottom of the first gear and locking the downward movement of the first gear.

[0022] Optionally, the step of unlocking the knob body specifically includes:

[0023] The second stepper motor is controlled to rotate at a corresponding third angle, thereby causing the locking unit to rotate away from the first gear and below it, and unlocking the downward movement of the first gear.

[0024] Optionally, the stove knob further includes an infrared emitter, an infrared receiver, and a light-blocking component, and the step of obtaining the rotation angle of the knob body specifically includes:

[0025] Obtain a first quantity of infrared rays emitted by the infrared transmitter and a second quantity of infrared rays received by the infrared receiver;

[0026] Based on the first quantity and the second quantity, detect whether the infrared rays emitted by the infrared transmitter are blocked by the light-blocking component;

[0027] The rotation angle of the knob body is determined based on the test results.

[0028] The present invention also provides a control system for a stove knob, the stove knob including a knob body, and the control system including an acquisition module and a drive module;

[0029] The acquisition module is used to acquire the rotation angle of the knob body;

[0030] The drive module is used to drive the knob body to rotate to the initial position when it is determined, based on the rotation angle, that the knob body is not in the initial position and the stove is in the off state.

[0031] The present invention also provides a stove knob, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the aforementioned stove knob control method.

[0032] The present invention also provides a stove, the stove including the aforementioned stove knob.

[0033] The positive and progressive effects of this invention are as follows: This invention provides a method for controlling a stove knob. In this control method, if the stove is turned off, the knob body is driven to rotate to the initial position, which improves the user experience and the safety of the stove. Attached Figure Description

[0034] Figure 1 A flowchart of a control method for a stove knob provided in Embodiment 1 of the present invention.

[0035] Figure 2 This is a schematic diagram of the structure of the knob body 10 provided in Embodiment 1 of the present invention.

[0036] Figure 3 This is a schematic diagram of the structure of the reset component 14 and the locking component 15 provided in Embodiment 1 of the present invention.

[0037] Figure 4 This is a schematic diagram of the locking unit 151 provided in Embodiment 1 of the present invention.

[0038] Figure 5 This is a schematic diagram of the control system for the stove knob provided in Embodiment 2 of the present invention.

[0039] Figure 6 This is a schematic diagram of the structure of the driving module 22 provided in Embodiment 2 of the present invention.

[0040] Figure 7 This is a schematic diagram of the structure of the acquisition module 21 provided in Embodiment 2 of the present invention.

[0041] Figure 8 This is a schematic diagram of the stove knob provided in Embodiment 3 of the present invention. Detailed Implementation

[0042] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0043] Example 1

[0044] This embodiment provides a method for controlling a stove knob, the stove knob including a knob body, such as... Figure 1 As shown, the control method includes the following steps:

[0045] S101. Obtain the rotation angle of the knob body.

[0046] S102. If the knob body is not in the initial position according to the rotation angle and the stove is in the off state, then drive the knob body to rotate to the initial position.

[0047] Specifically, the stove being in a flame-off state can mean that the stove has been off for a duration that reaches a certain threshold. The duration threshold can be determined based on actual conditions, and this embodiment does not impose any restrictions on it. For example, the stove can be determined to be in a flame-off state if the flame-off time reaches 60 seconds.

[0048] Furthermore, if it is determined that the stove is in an off state, a warning signal can be issued to the user in the form of sound and / or light. For example, if the stove includes a buzzer, if it is determined that the stove is in an off state, the buzzer can be controlled to sound briefly every 5 seconds until the stove is out of the off state.

[0049] This embodiment provides a method for controlling a stove knob. In this method, if the stove is turned off, the knob body is driven to rotate to the initial position, which improves the user experience and the safety of the stove.

[0050] In one alternative implementation, such as Figure 2 As shown, the knob body 10 includes a knob 11 and a valve stem 12. The knob 11 is divided into an upper part 111 and a lower part 112. The upper part 111 is connected to the valve stem 12.

[0051] The lower half of the knob is fixed to the cooktop panel.

[0052] Specifically, because the upper part of the knob is connected to the valve stem, rotating the upper part of the knob will drive the valve stem to rotate, thereby controlling the output of combustible gas. The lower part of the knob is a fixed part, which remains fixed when the upper part of the knob rotates, thus fixing the knob body to the stove panel.

[0053] like Figure 3As shown, the stove knob also includes a first gear 13 and a reset component 14. The reset component 14 includes a second gear 141 and a first stepper motor 142. The first gear 13 is disposed on the valve stem 12, and the second gear 141 is disposed on the rotor shaft 1421 of the first stepper motor 142 and meshes with the first gear 13.

[0054] Step S102 specifically includes:

[0055] S1021. Control the first stepper motor to rotate at the corresponding first angle, so as to drive the knob body to rotate to the initial position.

[0056] Specifically, the direction of rotation of the first stepper motor is the same as the direction of the rotation angle obtained in step S101. For example, if the upper part of the knob rotates counterclockwise during the user's turn on the stove, then the rotation direction of the first stepper motor in step S1021 is also counterclockwise. This is because if the upper part of the knob rotates counterclockwise when the stove is turned on, the first gear needs to rotate clockwise to reset the knob. Only when the first stepper motor rotates counterclockwise can it drive the first gear to rotate clockwise. If the upper part of the knob rotates clockwise during the user's turn on the stove, then the rotation direction of the first stepper motor in step S1021 is also clockwise. Generally, the upper part of the knob rotates counterclockwise, which can rotate 180°. The value of the first angle of rotation of the first stepper motor is proportional to the value of the rotation angle of the knob body obtained in step S101. The first angle can be calculated using the following formula:

[0057] α2=α1*(d1 / d2)

[0058] Where α1 represents the rotation angle of the upper half of the knob, α2 represents the first angle, d1 represents the diameter of the first gear, and d2 represents the diameter of the second gear.

[0059] The initial position of the knob body refers to the position of the knob body when the stove is in the off state. For example... Figure 4 As shown, there can be a height difference h between the first gear and the second gear, so that even if the user presses down on the knob body during the ignition process of the stove, the first gear can still mesh with the second gear.

[0060] In one optional implementation, the control method further includes:

[0061] 103. Detect the concentration of combustible gases.

[0062] 104. If the concentration is higher than the concentration threshold, lock the knob body to prevent ignition.

[0063] In one optional implementation, the control method further includes:

[0064] 105. When the knob body is locked, if the concentration drops below the concentration threshold, the knob body will be unlocked.

[0065] Specifically, the specific value of the concentration threshold can be determined according to the actual situation, and this embodiment does not impose any restrictions on it. Furthermore, the detection results can be fed back to the user in the form of sound and / or light. For example, if the stove includes a buzzer and / or a display screen, if the concentration of combustible gas is detected to exceed the concentration threshold, the buzzer can be controlled to sound continuously every 2 seconds and / or a warning message can be displayed on the display screen to remind the user to pay attention to the excessive concentration of combustible gas, thus ensuring the user's safety. When the concentration of combustible gas is detected to decrease to below the concentration threshold, the buzzer is then controlled to reset.

[0066] In one alternative implementation, such as Figure 3 As shown, the stove knob also includes a locking component 15, which includes a locking unit 151 and a second stepper motor 152. The locking unit 151 is disposed on the rotor shaft 1521 of the second stepper motor 152.

[0067] Specifically, the shape of the locking unit can be determined according to the actual situation, such as Figure 4 As shown, the locking unit 151 can be a 90° sector. Figure 4 The dashed line in the diagram represents the movement trajectory of the outer arc of the locking unit 151 during rotation. Step S104 specifically includes:

[0068] S1041. Control the second stepper motor to rotate at the corresponding second angle, so as to drive the locking unit to rotate to a position close to the bottom of the first gear and lock the downward movement of the first gear.

[0069] Specifically, once the knob body is locked, the user cannot press down on the knob body, so the ignition operation cannot be performed, thus avoiding any risk to the user.

[0070] Furthermore, the specific value of the second angle and the rotation direction of the second stepper motor can be determined according to the actual situation. For example, the rotation direction of the second stepper motor can be clockwise, and the value of the second angle can be 180°. This embodiment does not impose any restrictions on this. There is a height difference H between the locking unit and the first gear. After the locking unit rotates to below the first gear, when the knob body is pressed down, it cannot continue to move downwards after the height difference H. Therefore, as long as the value of the height difference H is set reasonably, the function of locking the knob body can be realized. The principle of setting the height difference H is that the ignition action is still unsuccessful after the knob body moves downwards by the height difference H. The value of the height difference H can be set to 0, that is, when the locking unit rotates to below the first gear, the upper surface of the locking unit contacts the first gear.

[0071] In one optional implementation, step S105 specifically includes:

[0072] S1051. Control the second stepper motor to rotate at the corresponding third angle, so as to drive the locking unit to rotate away from the first gear and unlock the downward movement of the first gear.

[0073] Specifically, the specific value of the third angle and the rotation direction of the second stepper motor can be determined according to the actual situation. For example, if the rotation direction of the second stepper motor is clockwise in step S1041, then the rotation direction of the second stepper motor in step S1051 can be counterclockwise, or it can be clockwise. This embodiment does not limit this.

[0074] In an optional embodiment, the stove knob further includes an infrared emitter, an infrared receiver, and a light-blocking component. Step S101 specifically includes:

[0075] S1011. Obtain the first quantity of infrared rays emitted by the infrared transmitter and the second quantity of infrared rays received by the infrared receiver.

[0076] S1012. Detect whether the infrared rays emitted by the infrared transmitter are blocked by the light-blocking component based on the first quantity and the second quantity.

[0077] S1013. Determine the rotation angle of the knob body based on the test results.

[0078] Specifically, an infrared transmitter and an infrared receiver can form a detection component, which can be located inside the lower half of the knob, while a light-blocking component can be located inside the upper half of the knob. Corresponding level signals can be generated based on the relationship between different detection results and different level signals, and the rotation angle of the knob body can be obtained based on the relationship between different level signals and different rotation angles.

[0079] Furthermore, the cooktop knob can also include a light-blocking component, which can be a light-blocking strip. The light-blocking component is positioned between each detection component to separate them and prevent mutual interference. A light-blocking unit can also be included between the infrared emitter and receiver of a detection component to prevent direct interference from the infrared emitter to the infrared receiver when there is no light-blocking component to block the infrared light emitted by the infrared emitter. A capacitor or a light-blocking sheet can be used as the light-blocking unit.

[0080] Example 2

[0081] This embodiment provides a control system for a stove knob, which includes a knob body, such as... Figure 5 As shown, the control system 20 includes an acquisition module 21 and a drive module 22.

[0082] The acquisition module 21 is used to acquire the rotation angle of the knob body.

[0083] The drive module 22 is used to drive the knob body to rotate to the initial position when the knob body is not in the initial position and the stove is in the off state, based on the rotation angle.

[0084] Specifically, the stove being in a flame-off state can mean that the stove has been off for a duration that reaches a certain threshold. The duration threshold can be determined based on actual conditions, and this embodiment does not impose any restrictions on it. For example, the stove can be determined to be in a flame-off state if the flame-off time reaches 60 seconds.

[0085] Furthermore, if it is determined that the stove is in an off state, a warning signal can be issued to the user in the form of sound and / or light. For example, if the stove includes a buzzer, if it is determined that the stove is in an off state, the buzzer can be controlled to sound briefly every 5 seconds until the stove is out of the off state.

[0086] This embodiment provides a control system for a stove knob. If the stove is turned off, the control system drives the knob body to rotate back to the initial position, improving the user experience and the safety of the stove.

[0087] In one alternative implementation, such as Figure 2 As shown, the knob body 10 includes a knob 11 and a valve stem 12. The knob 11 is divided into an upper part 111 and a lower part 112. The upper part 111 is connected to the valve stem 12.

[0088] The lower half of the knob is fixed to the cooktop panel.

[0089] Specifically, because the upper part of the knob is connected to the valve stem, rotating the upper part of the knob will drive the valve stem to rotate, thereby controlling the output of combustible gas. The lower part of the knob is a fixed part, which remains fixed when the upper part of the knob rotates, thus fixing the knob body to the stove panel.

[0090] like Figure 3 As shown, the stove knob also includes a first gear 13 and a reset component 14. The reset component 14 includes a second gear 141 and a first stepper motor 142. The first gear 13 is disposed on the valve stem 12, and the second gear 141 is disposed on the rotor shaft 1421 of the first stepper motor 142 and meshes with the first gear 13.

[0091] like Figure 6 As shown, the drive module 22 includes a first drive unit 221.

[0092] The first drive unit is used to control the first stepper motor to rotate at a corresponding first angle, so as to drive the knob body to rotate to the initial position.

[0093] Specifically, the direction of rotation of the first stepper motor is the same as the direction of the rotation angle obtained by the acquisition module. For example, if the upper part of the knob rotates counterclockwise while the user is turning on the stove, the first drive unit controls the first stepper motor to rotate counterclockwise; if the upper part of the knob rotates clockwise while the user is turning on the stove, the first drive unit controls the first stepper motor to rotate clockwise. The value of the first angle of rotation of the first stepper motor is proportional to the value of the rotation angle of the knob body obtained by the acquisition module, and the first angle can be calculated according to the following formula:

[0094] α2=α1*(d1 / d2)

[0095] Where α1 represents the rotation angle of the upper half of the knob, α2 represents the first angle, d1 represents the diameter of the first gear, and d2 represents the diameter of the second gear.

[0096] The initial position of the knob body refers to the position of the knob body when the stove is in the off state. For example... Figure 4 As shown, there can be a height difference h between the first gear and the second gear, so that even if the user presses down on the knob body during the ignition process of the stove, the first gear can still mesh with the second gear.

[0097] In one alternative implementation, such as Figure 6 As shown, the drive module 22 also includes a detection unit 222 and a second drive unit 223.

[0098] The detection unit is used to detect the concentration of combustible gas; if the concentration is higher than the concentration threshold, the second drive unit is invoked.

[0099] The second drive unit is used to lock the knob body to prevent ignition.

[0100] In one alternative implementation, the control system is further configured to: unlock the knob body if the concentration drops below a concentration threshold while the knob body is locked.

[0101] Specifically, the specific value of the concentration threshold can be determined according to the actual situation, and this embodiment does not impose any restrictions on it. Furthermore, the detection results can be fed back to the user in the form of sound and / or light. For example, if the stove includes a buzzer and / or a display screen, if the concentration of combustible gas is detected to exceed the concentration threshold, the buzzer can be controlled to sound continuously every 2 seconds and / or a warning message can be displayed on the display screen to remind the user to pay attention to the excessive concentration of combustible gas, thus ensuring the user's safety. When the concentration of combustible gas is detected to decrease to below the concentration threshold, the buzzer is then controlled to reset.

[0102] In one alternative implementation, such as Figure 3As shown, the stove knob also includes a locking component 15, which includes a locking unit 151 and a second stepper motor 152. The locking unit 151 is disposed on the rotor shaft 1521 of the second stepper motor 152.

[0103] Specifically, the shape of the locking unit can be determined according to the actual situation, such as Figure 4 As shown, the locking unit 151 can be a 90° sector. Figure 4 The dashed line in the figure represents the movement trajectory of the outer arc of the locking unit 151 during rotation.

[0104] The second drive unit is specifically used to control the second stepper motor to rotate at a corresponding second angle, so as to drive the locking unit to rotate to a position close to the bottom of the first gear and lock the downward movement of the first gear.

[0105] Specifically, once the knob body is locked, the user cannot press down on the knob body, so the ignition operation cannot be performed, thus avoiding any risk to the user.

[0106] Furthermore, the specific value of the second angle and the rotation direction of the second stepper motor can be determined according to the actual situation. For example, the rotation direction of the second stepper motor can be clockwise, and the value of the second angle can be 180°. This embodiment does not impose any restrictions on this. There is a height difference H between the locking unit and the first gear. After the locking unit rotates to below the first gear, when the knob body is pressed down, it cannot continue to move downwards after the height difference H. Therefore, as long as the value of the height difference H is set reasonably, the function of locking the knob body can be realized. The principle of setting the height difference H is that the ignition action is still unsuccessful after the knob body moves downwards by the height difference H. The value of the height difference H can be set to 0, that is, when the locking unit rotates to below the first gear, the upper surface of the locking unit contacts the first gear.

[0107] In one optional implementation, the second drive unit is further configured to control the second stepper motor to rotate at a corresponding third angle, thereby driving the locking unit to rotate away from the first gear and unlocking the downward movement of the first gear.

[0108] Specifically, the specific value of the third angle and the rotation direction of the second stepper motor can be determined according to the actual situation, and this embodiment does not impose any restrictions on this.

[0109] In one alternative embodiment, the stove knob further includes an infrared emitter, an infrared receiver, and a light-blocking component, such as... Figure 7 As shown, the acquisition module 21 specifically includes a first acquisition unit 211, a second acquisition unit 212, and a third acquisition unit 213.

[0110] The first acquisition unit is used to acquire the first quantity of infrared rays emitted by the infrared transmitter and the second quantity of infrared rays received by the infrared receiver.

[0111] The first acquisition unit is used to detect whether the infrared rays emitted by the infrared transmitter are blocked by the light-blocking component based on the first quantity and the second quantity.

[0112] The third acquisition unit is used to determine the rotation angle of the knob body based on the detection results.

[0113] Specifically, an infrared transmitter and an infrared receiver can form a detection component, which can be located inside the lower half of the knob, while a light-blocking component can be located inside the upper half of the knob. Corresponding level signals can be generated based on the relationship between different detection results and different level signals, and the rotation angle of the knob body can be obtained based on the relationship between different level signals and different rotation angles.

[0114] Furthermore, the cooktop knob can also include a light-blocking component, which can be a light-blocking strip. The light-blocking component is positioned between each detection component to separate them and prevent mutual interference. A light-blocking unit can also be included between the infrared emitter and receiver of a detection component to prevent direct interference from the infrared emitter to the infrared receiver when there is no light-blocking component to block the infrared light emitted by the infrared emitter. A capacitor or a light-blocking sheet can be used as the light-blocking unit.

[0115] Example 3

[0116] Figure 8 This is a schematic diagram of a stove knob according to Embodiment 3 of the present invention. It includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the stove knob control method of Embodiment 1 described above. Figure 8 The stove knob 30 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of the present invention.

[0117] The cooktop knob 30 can be represented as a general-purpose computing device, such as a server device. The components of the cooktop knob 30 may include, but are not limited to: at least one processor 31, at least one memory 32, and a bus 33 connecting different system components (including memory 32 and processor 31).

[0118] Bus 33 includes a data bus, an address bus, and a control bus.

[0119] The memory 32 may include volatile memory, such as random access memory (RAM) 321 and / or cache memory 322, and may further include read-only memory (ROM) 323.

[0120] The memory 32 may also include a program / utility 325 having a set (at least one) of program modules 324, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0121] The processor 31 executes various functional applications and data processing by running computer programs stored in the memory 32, such as the control method of the stove knob in Embodiment 1 of the present invention.

[0122] The cooktop knob 30 can also communicate with one or more external devices 34 (e.g., keyboard, pointing device, etc.). This communication can be performed via input / output (I / O) interface 35. Furthermore, the model-generated cooktop knob 30 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 36. As shown, network adapter 36 communicates with other modules of the model-generated cooktop knob 30 via bus 33. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the model-generated cooktop knob 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems.

[0123] It should be noted that although several units / modules or sub-units / modules of the electronic device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0124] Example 4

[0125] This embodiment provides a stove, characterized in that the stove includes a stove knob as described in Embodiment 3.

[0126] After the stove provided in this embodiment is turned off, the reset component in the stove drives the knob body to rotate to the initial position, which improves the user experience and the safety of the stove; if the concentration of combustible gas is higher than the concentration threshold, the locking component locks the downward movement of the knob body. Since the user cannot press down the knob body, the ignition operation cannot be performed, thus avoiding risks to the user.

[0127] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A method for controlling a stove knob, characterized in that, The stove knob includes a knob body, and the control method includes: Obtain the rotation angle of the knob body; If it is determined from the rotation angle that the knob body is not in the initial position and the stove is in the off state, then drive the knob body to rotate to the initial position; The knob body includes a knob and a valve stem. The knob is divided into an upper part and a lower part. The upper part of the knob is connected to the valve stem, and the lower part of the knob is fixed to the stove panel. The stove knob also includes a first gear and a reset component. The reset component includes a second gear and a first stepper motor. The first gear is disposed on the valve stem, and the second gear is disposed on the rotor shaft of the first stepper motor and meshes with the first gear. The step of driving the knob body to rotate to the initial position specifically includes: Control the first stepper motor to rotate at a corresponding first angle, so as to drive the knob body to rotate to the initial position; The control method further includes: Detecting the concentration of combustible gases; If the concentration is higher than the concentration threshold, the knob body is locked to prevent ignition. If the concentration drops below the concentration threshold when the knob body is locked, the knob body is unlocked. The stove knob also includes a locking component, which includes a locking unit and a second stepper motor. The locking unit is disposed on the rotor shaft of the second stepper motor. The step of locking the knob body specifically includes: The second stepper motor is controlled to rotate at a corresponding second angle, thereby driving the locking unit to rotate closer to the bottom of the first gear and locking the downward movement of the first gear.

2. The control method for the stove knob as described in claim 1, characterized in that, The specific steps for unlocking the knob body include: The second stepper motor is controlled to rotate at a corresponding third angle, thereby causing the locking unit to rotate away from the first gear and below it, and unlocking the downward movement of the first gear.

3. The control method for the stove knob as described in claim 1, characterized in that, The stove knob also includes an infrared emitter, an infrared receiver, and a light-blocking component. The step of obtaining the rotation angle of the knob body specifically includes: Obtain a first quantity of infrared rays emitted by the infrared transmitter and a second quantity of infrared rays received by the infrared receiver; Based on the first quantity and the second quantity, detect whether the infrared rays emitted by the infrared transmitter are blocked by the light-blocking component; The rotation angle of the knob body is determined based on the test results.

4. A control system for a stove knob, characterized in that, The stove knob includes a knob body, and the control system includes an acquisition module and a drive module; The acquisition module is used to acquire the rotation angle of the knob body; The drive module is used to drive the knob body to rotate to the initial position when it is determined from the rotation angle that the knob body is not in the initial position and the stove is in the off state; The knob body includes a knob and a valve stem. The knob is divided into an upper part and a lower part. The upper part of the knob is connected to the valve stem, and the lower part of the knob is fixed to the stove panel. The stove knob also includes a first gear and a reset component. The reset component includes a second gear and a first stepper motor. The first gear is disposed on the valve stem, and the second gear is disposed on the rotor shaft of the first stepper motor and meshes with the first gear. The drive module includes a first drive unit, which controls the first stepper motor to rotate at a corresponding first angle, so as to drive the knob body to rotate at the initial position; The drive module further includes a detection unit and a second drive unit. The detection unit is used to detect the concentration of combustible gas; if the concentration is higher than a concentration threshold, the second drive unit is activated; the second drive unit is used to lock the knob body to prevent ignition. The control system is also used to: when the knob body is locked, if the concentration drops below the concentration threshold, then unlock the knob body; The stove knob also includes a locking component, which includes a locking unit and a second stepper motor. The locking unit is disposed on the rotor shaft of the second stepper motor. The second drive unit is specifically used to control the second stepper motor to rotate at a corresponding second angle, so as to drive the locking unit to rotate to a position close to the bottom of the first gear and lock the downward movement of the first gear.

5. A stove knob, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the control method for the stove knob as described in any one of claims 1-3.

6. A stove, characterized in that, The stove includes the stove knob as described in claim 5.

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