Cooker gear detection method, detection device and knob

Abstract

The application discloses a detection method and device for a range of a cooking utensil and a knob. The detection method is performed by the knob connected to a control rod of the cooking utensil. The knob is provided with a flame sensor. The detection method comprises the following steps: judging whether the knob is rotated completely; if the knob is rotated completely, acquiring a flame signal detected by the flame sensor; and determining current range information of the cooking utensil according to numerical information of the flame signal. The numerical information comprises radiation intensity of a flame of the cooking utensil. The application can accurately detect the range of the cooking utensil in a simple, efficient, timely, stable and reliable manner.

Description

Technical Field

[0001] This invention relates to a method, device, and knob for detecting the settings of a stove. Background Technology

[0002] With technological advancements, kitchen appliances are becoming increasingly intelligent and convenient to use, and consumers are accustomed to the convenience brought by intelligent technologies, such as the linkage between the range hood and cooktop. However, currently, the linkage function of the range hood is mostly limited to the linkage between products of different manufacturers. It is difficult to achieve linkage between range hoods and cooktops between products of different brands. Although some manufacturers are currently using image recognition technology (such as cameras monitoring the position of knobs) to achieve linkage between range hoods and cooktops of different brands, it is difficult to truly commercialize this technology due to issues such as cost and energy efficiency (the camera needs to be constantly working). Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art in that it is difficult to detect the stove gear position and the cost is high, and to provide a stove gear position detection method, detection device and knob.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A method for detecting the setting of a stove, wherein the detection method is performed via a knob connected to a control lever of the stove, the knob having a flame sensor; the detection method includes:

[0006] Determine whether the knob has been fully rotated;

[0007] Once the knob has been rotated to completion, the flame signal detected by the flame sensor is acquired;

[0008] Based on the numerical information of the flame signal, the current gear information of the stove is determined; wherein, the numerical information includes the radiation intensity of the stove flame.

[0009] In this solution, a flame sensor detects the flame on the stove, determining the current combustion level based on the detected flame. Furthermore, it determines whether the stove is turned on or the flame intensity has been adjusted based on whether the knob has been turned, enabling timely, real-time, and accurate detection of the stove's combustion level. This information can then be used to control other linked devices, such as the range hood. Additionally, the flame sensor's detection of the flame itself avoids misjudgments caused by the knob being turned when the stove is not actually ignited. This solution's method for detecting stove combustion levels is simple, efficient, timely, stable, and reliable, accurately identifying the stove's combustion level.

[0010] Preferably, the knob includes a rotor and a plurality of flame sensors, the plurality of flame sensors being disposed on the rotor along the circumferential direction of the rotor and rotating with the rotor; the detection method includes:

[0011] Acquire flame signals detected by multiple flame sensors;

[0012] The current gear information of the stove is determined by comparing the numerical information in multiple flame signals with the preset numerical range of the gear.

[0013] In this solution, by arranging multiple flame sensors along the circumference, at least one of the multiple flame sensors can detect the flame when the rotor rotates, thereby avoiding the occurrence of missed detections or failure to detect the flame. It also avoids the problem that insufficient detection due to the change of the flame sensor position with the knob can fail to reflect the actual combustion of the flame. This improves the stability and reliability of the detection and can adapt to situations where the position of the flame sensor, such as the knob, changes.

[0014] Preferably, before detecting the stove's power setting, the detection method further includes stove power setting input; the stove power setting input includes:

[0015] When the knob is in the high flame setting of the stove, the numerical information of the high flame setting of multiple flame sensors is obtained;

[0016] When the knob is in the low flame setting of the stove, the numerical information of the low flame setting of multiple flame sensors is obtained;

[0017] Based on the numerical information of the high flame setting and the low flame setting, the numerical range corresponding to the high flame setting and the low flame setting of the stove is calculated and used as the preset numerical range of the setting.

[0018] In this solution, by recording the stove's power setting, the flame sensor's detection can be matched with the actual flame condition of the stove, thus improving the accuracy of the power setting judgment.

[0019] Preferably, the step of calculating the numerical range corresponding to the high and low flame settings of the stove based on the numerical information of the high flame setting and the low flame setting includes:

[0020] The maximum value among the high and low flame settings of the multiple flame sensors is obtained respectively, and used as the calculated value of the high flame setting and the calculated value of the low flame setting.

[0021] Multiply the calculated values ​​for high heat setting and low heat setting by the corresponding preset coefficient values ​​to calculate the processing values ​​for high heat setting and low heat setting respectively.

[0022] The dividing value between the large and small fire settings is calculated based on the processing values ​​of the large fire setting and the small fire setting.

[0023] The processing value of the high heat setting and the dividing value are used as the numerical range of the high heat setting, and the dividing value and the processing value of the low heat setting are used as the numerical range of the low heat setting.

[0024] In this solution, the calculated values ​​for the high and low flame settings are multiplied by corresponding preset coefficients, which reduces errors caused by factors such as manual operation angle and sensor accuracy. Simultaneously, mapping the high and low flame settings to their respective numerical ranges ensures that the flame settings are within a certain angle range when the knob is adjusted, thus matching the actual flame setting used by the stove and making the setting judgment more accurate.

[0025] Preferably, the step of determining the current gear information of the stove by comparing the numerical information of the plurality of flame signals with a preset numerical range of the gear level includes:

[0026] The maximum value among the multiple flame signals is compared with the preset value range of the gear.

[0027] If the maximum value is within the range of the high heat setting, the current setting of the stove is determined to be the high heat setting.

[0028] If the maximum value is within the range of the low flame setting, the current setting of the stove is determined to be the low flame setting.

[0029] In this solution, when designing the numerical ranges corresponding to the high and low flame settings, the maximum value among multiple flame sensor readings is selected as the basis for the settings, which improves the accuracy of the judgment. During the judgment process, the maximum value in the current flame signal is also compared to this value, enabling an accurate assessment of the current flame condition of the stove.

[0030] Preferably, the knob includes a rotor and a start-up detection unit, both of which are connected to the rotor.

[0031] The step of determining whether the knob has been fully rotated includes:

[0032] Determine whether the startup detection unit has been triggered;

[0033] If the activation detection unit is triggered, the flame sensor is awakened, and it is detected whether the activation detection unit stops triggering.

[0034] If the start detection unit stops triggering, it is determined that the knob has been turned.

[0035] In this design, the activation detection unit rotates with the rotor, and its movement is synchronized with the rotor's. By determining whether the activation detection unit is triggered, the rotation status of the rotor can be judged. When triggered, it indicates that the rotor is rotating, and the knob can be considered to have been rotated by an external force. If the user intends to perform ignition or flame adjustment, the flame sensor can be activated to detect the flame level, thus preventing the flame sensor from being in a detection state for extended periods and reducing power consumption. Subsequently, it checks whether the activation detection unit stops triggering. If it stops, it means the rotor has stopped rotating, indicating that the external force on the knob has ceased, and the user has stopped the ignition or flame adjustment operation. The ignition or flame adjustment operation is now complete, and the current detection data from the flame sensor can be acquired for accurate detection of the stove's current setting. Furthermore, when the activation detection unit generates a trigger-stop signal, it can also stop the flame sensor from working, put it into standby mode, or put it into a low-power mode after sending the detection signal, thereby saving energy and reducing power consumption.

[0036] Preferably, the knob further includes a stator, and along the axial direction of the stator, the rotor is connected to the stator and is rotatable about the axial direction of the stator. The stator is used to connect to the control lever of the stove.

[0037] The step of determining whether the startup detection unit has been triggered includes:

[0038] When the rotor is subjected to an external force, it rotates, causing the start-up detection unit to rotate in the forward direction. The start-up detection unit then contacts the stator and is triggered.

[0039] In this solution, the stator is connected to the control lever of the stove. The activation detection unit contacts the stator and is triggered, thereby reflecting the rotation of the rotor relative to the control lever. Furthermore, when the activation detection unit contacts the stator, it indicates that the stove is about to be started or the firepower will be adjusted, thereby activating the flame sensor for detection.

[0040] Preferably, the knob further includes a reset part, which is disposed between the rotor and the stator, for driving the rotor to rotate in the opposite direction to the rotation caused by the external force;

[0041] The detection of whether the start detection unit stops triggering includes:

[0042] When the external force on the rotor stops, the reset part drives the rotor to rotate in the opposite direction, and the start detection part moves away from the stator and is stopped from being triggered.

[0043] In this solution, the reset unit can move the start detection unit away from the stator after the external force disappears, indicating that the user has stopped operating.

[0044] Preferably, the method for detecting the stove's speed setting further includes:

[0045] Determine whether the knob has been turned again to complete the process;

[0046] If the knob is turned again, the flame signal detected by the flame sensor is acquired again;

[0047] The current setting of the stove is determined based on the numerical information of the flame signal.

[0048] In this solution, using any of the above detection methods, after the previous detection is completed, the current detection signal from the flame sensor can be obtained again based on whether the knob has been turned. Then, based on the user's ignition or flame adjustment operation, the latest setting of the stove can be determined. This allows for timely linkage with other devices, such as the range hood, to control the airflow according to the stove's setting.

[0049] A stove setting detection device, wherein the detection device is electrically connected to a knob connected to a control lever of the stove, the knob having a flame sensor; the detection device includes:

[0050] The first module is used to determine whether the knob has been turned;

[0051] The second module is used to acquire the flame signal detected by the flame sensor if the knob is rotated.

[0052] The third module is used to determine the current gear information of the stove based on the numerical information of the flame signal; wherein the numerical information includes the radiation intensity of the stove flame.

[0053] A knob includes a stove setting detection device as described above, and the knob also includes a circuit board and a flame sensor, both of which are electrically connected to the circuit board.

[0054] The significant advantages of this invention are as follows: A flame sensor can detect the flame on the stove, thereby determining the current cooking level based on the detected flame. Furthermore, the presence or absence of a knob indicates whether the stove is on or its heat has been adjusted, enabling real-time monitoring of the stove's cooking level. This accurate information can then be used to control other connected devices, such as a range hood. Additionally, the flame sensor's detection of the flame itself prevents misjudgments caused by a knob being turned when the stove is not actually ignited. This method of detecting the stove's cooking level is simple, efficient, timely, stable, and reliable, accurately determining the cooking level. Attached Figure Description

[0055] Figure 1This is a schematic diagram of a knob with a flame sensor provided in Embodiment 1 of the present invention;

[0056] Figure 2 This is a schematic diagram of a knob provided in Embodiment 1 of the present invention, wherein the flame sensor is hidden and the activation detection unit is a micro switch;

[0057] Figure 3 for Figure 2 A magnified view of the center knob at the start-up detection section;

[0058] Figure 4 This is a schematic diagram of another knob provided in Embodiment 1 of the present invention, wherein the flame sensor is hidden and the activation detection unit is a reset switch;

[0059] Figure 5 for Figure 4 A magnified view of the center knob at the start-up detection section;

[0060] Figure 6 This is a schematic diagram of a knob being installed on a cooktop panel according to an embodiment of the present invention;

[0061] Figure 7a This is a schematic diagram illustrating the configuration of the knob and the stove settings in Embodiment 2 of the present invention.

[0062] Figure 7b This is a schematic diagram of the knob and stove gear configuration in Embodiment 2 of the present invention, wherein the number of gears is 3 and the rotation range of the control lever is 180°;

[0063] Figure 8a This is a schematic diagram of the structure of Embodiment 2 of the present invention when the knob is set on the stove panel and the knob is in the flameout position, wherein the detection range of each flame sensor is represented by blank spaces;

[0064] Figure 8b This is a schematic diagram of the structure of Embodiment 2 of the present invention when the knob is set on the stove panel and the knob is in the high flame position, wherein the detection range of each flame sensor is represented by blank spaces;

[0065] Figure 8c This is a schematic diagram of the structure of Embodiment 2 of the present invention when the knob is set on the stove panel and the knob is in the low flame position, wherein the detection range of each flame sensor is represented by blank spaces;

[0066] Figure 9a This is a schematic diagram of the structure of the knob in the off position in Embodiment 2 of the present invention, wherein there is an angle α between the micro switch on the right and the top cover;

[0067] Figure 9bThis is a schematic diagram of the structure after the knob is rotated counterclockwise in Embodiment 2 of the present invention, wherein the micro switch on the right side is in contact with the top cover, and there is an angle b between the rotor and the stator;

[0068] Figure 9c This is a schematic diagram of the structure of the knob after it is rotated counterclockwise in Embodiment 2 of the present invention, wherein the knob drives the control lever to rotate by an angle c;

[0069] Figure 9d This is a schematic diagram of the structure after the knob is reset and rotated clockwise in Embodiment 2 of the present invention, wherein the rotor rotates clockwise by an angle b under the action of the reset part;

[0070] Figure 9e This is a schematic diagram of the structure after the knob is reset and continues to rotate clockwise in Embodiment 2 of the present invention, wherein the rotor continues to rotate clockwise by an angle 'a' under the action of the reset part;

[0071] Figure 10 A flowchart of a method for detecting the stove's power setting according to Embodiment 2 of the present invention;

[0072] Figure 11 A flowchart of a method for detecting the stove's power setting according to Embodiment 2 of the present invention;

[0073] Figure 12 This is a schematic diagram of a knob installed on a stove panel according to Embodiment 3 of the present invention, wherein the knob is in the flameout position, and the detection range of the flame sensor is indicated by shadow.

[0074] Figure 13 This is a schematic diagram of a knob installed on a stove panel according to Embodiment 3 of the present invention, wherein the knob is in the low flame position, and the detection range of the flame sensor is indicated by the shadow.

[0075] Figure 14 This is a schematic diagram of the composition of a stove gear detection device provided in Embodiment 4 of the present invention.

[0076] Explanation of reference numerals in the attached figures

[0077] Knob 1, Rotor 10, First protrusion 11, Stator 20, Second protrusion 21, Top cover 27, Detection groove 28, Third protrusion 29, Circuit board 30, Start detection unit 40, Micro switch 41, Reset switch 42, Flame sensor 51, First flame sensor 511, Second flame sensor 512, Third flame sensor 513, Reset unit 80, Elastic sheet 81, First gap L1, Second gap L2, Control lever 2, Burner head 3, Flame 4, Cooktop panel 5, Forward rotation CW, Reverse rotation CCW, Detection device 600, First module 610, Second module 620, Third module 630. Detailed Implementation

[0078] 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.

[0079] Example 1

[0080] This embodiment provides a knob 1 structure, such as Figure 1-5 As shown, the knob 1 includes a rotor 10 and a stator 20. The flame sensor 51 is connected to the rotor 10 and rotates with the rotor 10; the stator 20 is used to connect to the control lever 2 of the stove.

[0081] Along the axial direction of the stator 20, the rotor 10 is connected to the stator 20, and the rotor 10 can rotate around the axial direction of the stator 20; along the direction of rotation of the rotor 10, the rotor 10 and the stator 20 are arranged with a first gap L1, so that when the rotor 10 rotates through the first gap L1, it contacts the stator 20 and drives the stator 20 to rotate.

[0082] like Figure 2 and Figure 4 As shown, the rotor 10 has a first protrusion 11 extending toward the stator 20, and the stator 20 has a second protrusion 21 extending toward the rotor 10; as Figure 3 and Figure 5 As shown, along the direction of rotation of the rotor 10, there is a first gap L1 between the first protrusion 11 and the second protrusion 21. Through the first protrusion 11 and the second protrusion 21 extending towards each other, when the rotor 10 rotates through the first gap L1, the first protrusion 11 can contact the second protrusion 21, causing the rotor 10 to drive the rotor to rotate.

[0083] The knob 1 also includes a circuit board 30, on which a flame sensor 51 is mounted. The circuit board 30 is connected to the rotor 10, so the flame sensor 51 rotates along with the rotor 10 as it rotates. Figure 2 and Figure 4 As shown, the knob 1 also has a start detection unit 40, which is disposed on the rotor 10 and arranged with the stator 20 through a second gap L2. The start detection unit 40 is used to detect the movement of the stator 20. The second gap L2 is not greater than the first gap L1. During operation of the knob 1 by the user, the rotor 10 rotates through the second gap L2 under the user's action, and the start detection unit 40 on the rotor 10 contacts the stator 20. Subsequently, the rotor 10 rotates to the first gap L1 and contacts the stator 20, causing the stator 20 to rotate. Furthermore, the stator 20 is fixedly connected to the stove's fire control lever 2. When the stator 20 rotates with the rotor 10, the fire control lever 2 also rotates, thereby transmitting the force applied by the user from the rotor 10 to the fire control lever 2, realizing the start or adjustment of the stove's firepower.

[0084] like Figure 1As shown, the knob 1 also has a reset part 80, which is disposed between the rotor 10 and the stator 20, and is used to drive the rotor 10 to rotate in the opposite direction to the rotation caused by the external force. The reset part 80 extends along the axial direction of the stator 20, one end of the reset part 80 is fixedly connected to one of the rotor 10 and the stator 20, and the other end of the reset part 80 abuts against the other of the rotor 10 and the stator 20.

[0085] A reset section 80 is provided between the rotor 10 and the stator 20. When relative rotation occurs between the rotor 10 and the stator 20, the reset section 80 deforms, accumulating a restoring force to restore the rotor 10 and the stator 20 to their initial positions. When the rotor 10 receives a force applied by the user, the reset section 80 is also subjected to that applied force and is in a stored state; when the user does not apply a force, the reset section 80 provides a force to restore the rotor 10 and the stator 20 to their initial positions. Through this reset section 80 and the flame sensor 51, the angular difference between the rotor 10 and the stator 20 can be detected, thereby ensuring that the angle through which the rotor 10 rotates is consistent with the angle through which the stator 20 drives the rotation control lever 2 to rotate.

[0086] As a more specific implementation method, such as Figure 2 and Figure 3 As shown, the activation detection unit 40 is a microswitch 41. Microswitches 41 are provided on both sides of the detected part along the rotation direction of the rotor 10, with the detection ends of both microswitches 41 facing the detected part on the stator 20. With microswitches 41 on both sides of the detected part, when the rotor 10 is subjected to forward rotation CW and reverse rotation CCW applied by the user, one of the detected parts on both sides can detect the detected part, thus not only activating the fire sensor as a wake-up signal but also detecting the rotation direction of the rotor 10. The extended end of the second protrusion 21 serves as the detected part of the stator 20. Furthermore, the second protrusion 21 of the stator 20 is provided with a top cover 27, and the two ends of the top cover 27 along the circumference of the rotor 10 serve as the detected parts of the microswitches 41 located on its two sides.

[0087] As another, more specific implementation method, such as Figure 4 and Figure 5 As shown, the start detection unit 40 is a reset switch 42. The stator 20 has a detection part extending towards the rotor 10, and the detection head of the reset switch 42 extends into the detection part. Along the direction of rotation of the rotor 10, there is a second gap L2 between the detection head of the reset switch 42 and the detection part. When the rotor 10 rotates, the detection head of the reset switch 42 can contact the detection part, thereby detecting the rotation of the rotor 10. The second gap L2 between the detection head and the detection part prevents accidental contact of the detection head of the reset switch 42. Figure 4 and Figure 5 As shown, a detection groove 28 is provided on the surface of the detected part facing the reset switch 42. The detection head of the reset switch 42 extends into the detection groove 28 along the rotation direction of the rotor 10. A second gap L2 exists between the detection head of the reset switch 42 and the two side walls of the detection groove 28. When the rotor 10 is subjected to a forward rotation CW and a reverse rotation CCW applied by the user, one of the two side walls of the detection groove 28 can contact the detection head of the reset switch 42. The detection result of the reset switch 42 can not only serve as a wake-up signal to activate the corresponding electronic device, but also detect the rotation direction of the rotor 10. Figure 4 and Figure 5 As shown, the second protrusion 21 of the stator 20 is provided with a detection groove 28, and the detection groove 28 serves as the detection part of the reset switch 42 along the two inner sidewalls of the rotor 10 circumferentially.

[0088] As a more specific implementation method, such as Figure 1 As shown, the reset part 80 is an elastic plate 81. The rotor 10 has a fixing groove opened along the axial direction of the stator 20, and the stator 20 has a third protrusion 29 protruding along its radial direction. One end of the elastic plate 81 is fixedly connected to the fixing groove, and the other end of the elastic plate 81 abuts against the third protrusion 29. Along the direction of rotation of the rotor 10, elastic plates 81 abut against both sides of the third protrusion 29. Energy can be stored through the elastic plate 81 to provide restoring force. Through the elastic plates 81 provided on both sides, restoring force can be provided when the rotor 10 rotates clockwise and counterclockwise. At the same time, it can also push the rotor 10 relative to the stator 20 to return to its initial position on both sides, improving balance. Specifically, as shown... Figure 1 As shown, the reset unit 80 and the start detection unit 40 are located at opposite ends of the knob 1.

[0089] Example 2

[0090] This embodiment provides a method for detecting the setting of a stove. The detection method is performed by a knob 1 connected to the control lever 2 of the stove. The knob 1 has a flame sensor 51. Furthermore, this embodiment can use the knob 1 provided in Embodiment 1 above for detection.

[0091] like Figure 10 As shown, the detection method includes the following steps:

[0092] S100: Determine whether knob 1 has been fully rotated;

[0093] S200: If knob 1 is fully rotated, acquire the flame signal detected by flame sensor 51;

[0094] S300: Determine the current setting of the stove based on the numerical information of the flame signal; the numerical information includes the radiation intensity of the stove flame 4.

[0095] The flame sensor 51 detects the flame 4 of the stove, thereby determining the current combustion level of the stove based on the detected flame 4. Furthermore, it determines whether the stove is turned on or whether the firepower has been adjusted based on whether the knob 1 has been fully turned, thus enabling timely, real-time, and accurate detection of the stove's combustion level. This determined combustion level information can serve as a control basis for other linked devices, such as the range hood. In addition, the flame sensor 51's detection of the flame 4 avoids false alarms caused by the knob 1 being turned but the stove not actually igniting. The stove's combustion level detection method in this solution is simple, efficient, timely, stable, and reliable, accurately detecting the stove's combustion level.

[0096] like Figure 1 As shown, multiple flame sensors 51 are arranged on the circuit board 30 along the circumferential direction of the rotor 10, and the sum of the detection angles of the multiple flame sensors 51 is not less than 360°. Figure 8a , Figure 8b and Figure 8c As shown, the rotor 10 has three flame sensors 51 arranged circumferentially, namely the first flame sensor 511, the second flame sensor 512 and the third flame sensor 513, and the detection range of each flame sensor 51 is 120°.

[0097] Typically, the maximum adjustable angle of the stove control lever 2 is 180° or 270°, and the control lever 2 is located in the area between the left and right burners 3. Figure 7a As shown, the stove can have n speed settings. The angle range for each setting can be divided based on the number of speed settings n and the maximum angle of the control lever 2 (180°). For example... Figure 6 and Figure 7b As shown, taking a stove control lever 2 with a maximum adjustable angle of 180° and 3 settings as an example; setting 1 corresponds to the flameout setting, with a rotation angle of 0° for lever 2; setting 2 corresponds to the high flame setting, with a rotation angle of 90° for lever 2; and setting 3 corresponds to the low flame setting, with a rotation angle of 180° for lever 2. Figure 6 As shown, the stove surface can display flame settings: the upper circle represents "flameout," the two flame indicators on the left represent "high flame," and the lower flame indicator represents "low flame." The control lever 2 rotates counter-clockwise. "High flame" refers to a large flame range; when the control lever 2 is rotated to face the high flame indicator, the stove's flame is at its maximum within the high flame range. "Low flame" refers to a small flame range; when the control lever 2 is rotated close to the flameout or low flame indicator, the stove's flame is at its minimum within the low flame range, until it is rotated to the flameout indicator, at which point the stove is turned off and no flame is produced. Further, as... Figure 6As shown, the 45° counterclockwise angle range of the self-extinguishing flame indicator and the 45° clockwise angle range of the small flame indicator represent the small flame range; the other angle ranges within the 180° range on the left correspond to the large flame range.

[0098] By selecting a certain number of flame sensors 51 with a combined viewing angle of not less than 360°, blind spots in the detection of knob 1 can be avoided. In this embodiment, three flame sensors 51 with a viewing angle of 120° are preferentially selected and evenly distributed on circuit board 30. Since the infrared rays emitted by burner 3 are not parallel lines, even if the viewing angles of the flame sensors 51 do not intersect, circuit board 30 will still have at least one flame sensor 51 that can detect the infrared rays of the stove flame 4. Specifically, Figure 8a , Figure 8b and Figure 8c The shaded area represents the region outside the detection range of the flame sensor 51. Each of the three flame sensors 51 has a detection range of 120°, for a total detection range of 360°. Figure 8a In the middle, knob 1 is in the near-off position, at which time the first flame sensor 511 can detect flame 4; Figure 8b When knob 1 is turned 90° (within the high-fire range and at the maximum fire position), both the first flame sensor 511 and the second flame sensor 512 can detect flame 4; Figure 8c When knob 1 is turned 180° (within the low flame range and at the minimum flame position), both the second flame sensor 512 and the third flame sensor 513 can detect flame 4.

[0099] like Figure 11 As shown, the detection methods include:

[0100] S210: Acquire flame signals detected by multiple flame sensors 51; specifically, acquire flame signals detected by the first flame sensor 511, the second flame sensor 512, and the third flame sensor 513.

[0101] S310: Determine the current gear information of the stove by comparing the numerical information in multiple flame signals with the preset numerical range of the gear.

[0102] By arranging multiple flame sensors 51 along the circumference, when the rotor 10 rotates, at least one of the multiple flame sensors 51 can detect the flame 4, thereby avoiding the occurrence of missed detection or failure to detect; and avoiding the problem that insufficient detection and inability to reflect the actual combustion of the flame 4 due to the change of the position of the flame sensor 51 with the knob 1; thus improving the stability and reliability of detection, and being able to adapt to the situation where the position of the flame sensor 51, such as the knob 1, changes.

[0103] In a preferred embodiment, before detecting the stove's setting, the detection method further includes stove setting input; the stove setting input includes the following steps:

[0104] S10: When knob 1 is in the high flame setting of the stove, acquire the high flame setting values ​​from multiple flame sensors 51. In practical implementation, when this knob 1 is installed, it can connect to devices such as range hoods and mobile phones via a wireless communication module, prompting the user to input the desired setting through a visual interface. Specifically, it prompts the user to operate knob 1, such as... Figure 8b As shown, the joystick 2 can be moved to the fire flame marker, and at the same time, the numerical information of the first flame sensor 511, the second flame sensor 512 and the third flame sensor 513 is collected and acquired, and the corresponding radiation intensity is calculated.

[0105] S20: When knob 1 is in the low flame setting of the stove, acquire the low flame setting values ​​from multiple flame sensors 51. Specifically, remind the user to operate knob 1; the user continues to rotate knob 1 to ignite and adjust the stove to the low flame setting, such as... Figure 8c As shown, the joystick 2 can be moved to the small flame mark, and at the same time, the numerical information of the first flame sensor 511, the second flame sensor 512 and the third flame sensor 513 is collected and acquired, and the corresponding radiation intensity is calculated.

[0106] S30: Based on the numerical information of the high flame setting and the low flame setting, calculate the corresponding numerical range of the high flame setting and the low flame setting of the stove, and use it as the preset numerical range of the setting.

[0107] By recording the stove's power setting, the detection of the flame sensor 51 can be matched with the actual flame condition of the stove, thus improving the accuracy of the power setting judgment.

[0108] Step S30 further includes:

[0109] S31: Obtain the maximum value from the high and low flame settings of the multiple flame sensors 51, and use it as the calculated value for the high flame setting and the low flame setting, respectively. Specifically, the MCU module in circuit board 30 records the data with the highest radiation intensity from the three flame sensors 51 as Q. max-max Furthermore, the MCU module in circuit board 30 records the data Q of the highest radiation intensity from the three flame sensors 51. max-min At this moment, the high flame setting on the stove is connected to Q. max-max Correspondingly, the low heat setting is the same as Q. max-min To put it in perspective.

[0110] S32: Multiply the calculated values ​​for high heat and low heat by their respective preset coefficients to calculate the processing values ​​for high heat and low heat, respectively. Specifically, the high heat setting Q of the stove... max-max It can be appropriately increased to Q max-max* (100+n)%; the low flame setting of the stove, Q max-min It can be appropriately increased to Q max-min* (100+m)%, which can correct errors caused by manual operation angle and sensor accuracy, where the values ​​of n and m can be selected and adjusted according to the actual situation to make the gear range accurate.

[0111] S33: Calculate the boundary value between the high and low heat settings based on the processing values ​​of the high and low heat settings; specifically, [Q] can be used as the boundary value between the high and low heat settings. max-max* (100+n)%+Q max-min* [(100+m)%] / 2 is used as the dividing value.

[0112] S34: The processing value and the threshold value of the high flame setting are used as the numerical range for the high flame setting, and the threshold value and the processing value of the low flame setting are used as the numerical range for the low flame setting. Specifically, the range hood currently has two settings, and when knob 1 controls the range hood, the high and low settings are usually within a numerical range. It is set that when knob 1 detects that the three flame sensors 51 detect the maximum radiation intensity at Q... max-max* (100+n)% to [Q] max-max* (100+n)%+Q max-min* (100+m)%] / 2, the range hood is turned on to the high setting; the smart knob 1 detects 3 flame sensors 51 detects the maximum radiation intensity at [Q max-max* (100+n)%+Q max-min* (100+m)%] / 2 to Q max-min* (100+m)%, the range hood is turned on low.

[0113] Furthermore, step S310 above may include:

[0114] S311: Compare the maximum value among multiple flame signals with the preset value range of the gear;

[0115] S312: If the maximum value is within the range of the high heat setting, determine that the current setting of the stove is the high heat setting.

[0116] S313: If the maximum value is within the range of the low flame setting, the current setting of the stove is determined to be the low flame setting.

[0117] When designing the numerical ranges corresponding to the high and low flame settings, the maximum value among multiple flame sensor values ​​51 is selected as the basis for the settings, which improves the accuracy of the judgment. During the judgment process, the maximum value in the current flame signal is also compared with this value to accurately determine the current flame condition of the stove.

[0118] In a preferred embodiment, step S100 includes:

[0119] S110: Determine whether the start detection unit 40 has been triggered;

[0120] S120: If the activation detection unit 40 is triggered, the flame sensor 51 is awakened, and it is detected whether the activation detection unit 40 has stopped triggering;

[0121] S130: If the activation detection unit 40 stops triggering, the judgment knob 1 is rotated to complete the process.

[0122] The activation detection unit 40 rotates with the rotor 10, and its movement is consistent with that of the rotor 10. By determining whether the activation detection unit 40 is triggered, the rotation status of the rotor 10 can be determined. When triggered, it indicates that the rotor 10 is rotating, and the knob 1 can be considered to have been rotated by an external force. If the user intends to perform an ignition or flame adjustment operation, the flame sensor 51 can be activated to detect the flame level, thus preventing the flame sensor 51 from being in a detection state for an extended period and reducing power consumption. Subsequently, it checks whether the activation detection unit 40 stops triggering. If it stops, it indicates that the rotor 10 has stopped rotating, meaning the external force on the knob 1 has ceased, and the user has stopped the ignition or flame adjustment operation. The ignition or flame adjustment operation is now complete, and the current detection data from the flame sensor 51 can be obtained for judgment, thereby accurately detecting the current setting of the stove. Furthermore, when the activation detection unit 40 generates a trigger stop signal, it can also stop the flame sensor 51 from working, put it into standby mode, or put it into a low-power mode after sending the detection signal, thereby saving energy and reducing power consumption.

[0123] Furthermore, step S110 above includes:

[0124] S111: When the rotor 10 is subjected to an external force and rotates, it drives the start detection unit 40 to rotate forward CW. The start detection unit 40 contacts the stator 20 and is triggered. The stator 20 is connected to the control lever 2 of the stove. When the start detection unit 40 contacts the stator 20 and is triggered, it can detect the rotation of the rotor 10 relative to the control lever 2. Furthermore, when the start detection unit 40 contacts the stator 20, it indicates that the stove is about to be started or the firepower will be adjusted, thereby activating the flame sensor 51 for detection.

[0125] Furthermore, step S130 above includes:

[0126] S131: When the external force on the rotor 10 stops, the reset unit 80 drives the rotor 10 to rotate in the opposite direction (CCW), and the start detection unit 40 moves away from the stator 20 and is stopped from triggering. By having the reset unit 80 move the start detection unit 40 away from the stator 20 after the external force disappears, it indicates that the user has stopped operating.

[0127] like Figures 9a-9e The diagram illustrates the process of turning knob 1 from the flameout position to activating the stove and completing the rotation of knob 1 during the ignition operation. Figure 9a As shown, knob 1 is in the off position (the stove is not turned on), and there is a second gap L2 between the microswitch 41 on the right and the top cover 27. Figure 9a Angle a in the diagram. When the user operates knob 1, rotor 10 rotates counterclockwise, as shown. Figure 9b As shown, the microswitch 41 on the right side of the rotor 10 contacts the top cover 27 and is triggered, activating the three flame sensors 51. There is a difference between the first gap L1 and the second gap L2 between the rotor 10 and the stator 20, i.e. Figure 9b Angle b in the diagram. The user continues to operate knob 1, causing rotor 10 to rotate counter-clockwise, as... Figure 9c As shown, the rotor 10 drives the stator 20 to rotate by an angle c, and the control lever 2 also rotates by an angle c, thus starting the stove and generating a flame. Subsequently, the user stops operating the knob 1, the external force applied to the knob 1 disappears, and under the action of the reset part 80, the rotor 10 rotates clockwise relative to the stator 20, as shown. Figure 9d As shown, the rotor 10 rotates an angle b relative to the stator 20. At this point, the rotor 10 separates from the stator 20, and the microswitch 41 on the right side is about to separate from the top cover 27. Then, under the action of the reset part 80, the rotor 10 continues to rotate clockwise, as... Figure 9e As shown, the rotor 10 continues to rotate relative to the stator 20 by an angle 'a', and the micro switch 41 separates from the top cover 27. At this time, the relative position between the rotor 10 and the stator 20 is the same as the relative position between the rotor 10 and the stator 20 when the knob 1 is in the off state. At this stage, one rotation of the knob 1 is completed, and the current detection values ​​of the three flame sensors 51 can be obtained.

[0128] As a preferred embodiment, the method for detecting the stove's speed setting also includes:

[0129] S410: Determine whether knob 1 has been turned again;

[0130] S420: If knob 1 is turned again, the flame signal detected by flame sensor 51 is reacquired;

[0131] S430: Determines the current setting of the stove based on the numerical information of the flame signal.

[0132] Using any of the above detection methods, after the previous detection is completed, the current detection signal of the flame sensor 51 can be obtained again based on whether the knob 1 has been rotated. Then, based on the user's ignition or flame adjustment operation, the latest setting of the stove can be determined. This allows for timely linkage with other devices, such as the range hood, to control the airflow according to the stove's setting.

[0133] Specifically, during the above process, knob 1 drives lever 2 to rotate through angle c. When the user wants to adjust the firepower of the stove, the user operates knob 1 again, repeats the above operation process, and re-acquires the detection signals of the three flame sensors 51, and re-determines the current gear information of the stove.

[0134] Example 3

[0135] This embodiment provides another method for detecting the stove's power setting. This embodiment can use the knob 1 provided in Embodiment 1 above for detection. The difference between this embodiment and Embodiment 2 is that in this embodiment, the flame sensor 51 of the knob 1 is a single unit. Figure 12 and Figure 13 As shown, knob 1 includes a rotor 10 and a flame sensor 51. The detection method, gear input method, flame sensor 51 activation method, and knob 1 rotation completion determination method of knob 1 are the same as those in embodiment 2 with multiple flame sensors 51. The difference is that in the off position, the flame sensor 51 is positioned directly opposite the off position (0° position); in the low flame position, the flame sensor 51 is positioned directly opposite the low flame position (180° position). The shaded area represents the detection range of the flame sensor 51, and one flame sensor 51 can cover the entire detection process. During flame detection and gear input, the value of the flame sensor 51 is obtained as a processing value and a determination value.

[0136] Example 4

[0137] This invention also provides a stove setting detection device 600, which is electrically connected to a knob 1 connected to the control lever 2 of the stove. The knob 1 has a flame sensor 51. Figure 14 As shown, the detection device 600 includes:

[0138] The first module 610 is used to determine whether the knob 1 is rotated;

[0139] The second module 620 is used to acquire the flame signal detected by the flame sensor 51 if the knob 1 is rotated.

[0140] The third module 630 is used to determine the current gear information of the stove based on the numerical information of the flame signal; wherein, the numerical information includes the radiation intensity of the stove flame 4.

[0141] This invention also provides a knob 1, such as... Figure 1 As shown, the knob 1 includes a stove setting detection device 600 as described above. The knob 1 also includes a circuit board 30 and a flame sensor 51. Both the detection device and the flame sensor 51 are electrically connected to the circuit board 30.

[0142] 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 of detecting a hob setting, characterized in that, The detection method utilizes a knob connected to the control lever of the stove, the knob having a flame sensor; the detection method includes: Determine whether the knob has been fully rotated; Once the knob has been rotated to completion, the flame signal detected by the flame sensor is acquired; Based on the numerical information of the flame signal, the current gear information of the stove is determined; wherein, the numerical information includes the radiation intensity of the stove flame; The knob also includes a rotor and a start-up detection unit. Both the flame sensor and the start-up detection unit are connected to the rotor. Determining whether the knob has completed rotation includes: Determine whether the startup detection unit has been triggered; If the activation detection unit is triggered, the flame sensor is awakened, and it is detected whether the activation detection unit stops triggering. If the start detection unit stops triggering, it is determined that the knob has been rotated completely. The knob also includes a stator, and along the axial direction of the stator, the rotor is connected to the stator and the rotor is rotatable about the axial direction of the stator. The stator is used to connect to the control lever of the stove. The step of determining whether the startup detection unit has been triggered includes: When the rotor is subjected to an external force, it rotates, causing the start-up detection unit to rotate in the forward direction. The start-up detection unit then contacts the stator and is triggered. The knob also includes a reset part, which is disposed between the rotor and the stator and is used to drive the rotor to rotate in the opposite direction to the rotation caused by the external force. The detection of whether the start detection unit stops triggering includes: When the external force on the rotor stops, the reset part drives the rotor to rotate in the opposite direction, and the start detection part moves away from the stator and is stopped from being triggered.

2. The method for detecting the stove's speed setting as described in claim 1, characterized in that, The knob includes a rotor and multiple flame sensors, the multiple flame sensors being arranged on the rotor along its circumferential direction and rotating with the rotor; the detection method includes: Acquire flame signals detected by multiple flame sensors; The current gear information of the stove is determined by comparing the numerical information in multiple flame signals with the preset numerical range of the gear.

3. The method for detecting the stove's speed setting as described in claim 2, characterized in that, Before detecting the stove's power setting, the detection method also includes stove power setting input; The stove setting input includes: When the knob is in the high flame setting of the stove, the numerical information of the high flame setting of multiple flame sensors is obtained; When the knob is in the low flame setting of the stove, the numerical information of the low flame setting of multiple flame sensors is obtained; Based on the numerical information of the high flame setting and the low flame setting, the numerical range corresponding to the high flame setting and the low flame setting of the stove is calculated and used as the preset numerical range of the setting.

4. The method for detecting the stove's speed setting as described in claim 3, characterized in that, The step of calculating the numerical range corresponding to the high and low flame settings of the stove based on the numerical information of the high flame setting and the low flame setting includes: The maximum value among the high and low flame settings of the multiple flame sensors is obtained respectively, and used as the calculated value of the high flame setting and the calculated value of the low flame setting. Multiply the calculated values ​​for high heat setting and low heat setting by the corresponding preset coefficient values ​​to calculate the processing values ​​for high heat setting and low heat setting respectively. The dividing value between the large and small fire settings is calculated based on the processing values ​​of the large fire setting and the small fire setting. The processing value of the high heat setting and the dividing value are used as the numerical range of the high heat setting, and the dividing value and the processing value of the low heat setting are used as the numerical range of the low heat setting.

5. The method for detecting the stove's speed setting as described in claim 4, characterized in that, The step of determining the current gear information of the stove by comparing the numerical information of multiple flame signals with a preset numerical range of the gear level includes: The maximum value among the multiple flame signals is compared with the preset value range of the gear. If the maximum value is within the range of the high heat setting, the current setting of the stove is determined to be the high heat setting. If the maximum value is within the range of the low flame setting, the current setting of the stove is determined to be the low flame setting.

6. The method for detecting the stove's speed setting as described in any one of claims 1-5, characterized in that, The method for detecting the stove's power setting also includes: Determine whether the knob has been turned again to complete the process; If the knob is turned again, the flame signal detected by the flame sensor is acquired again; The current setting of the stove is determined based on the numerical information of the flame signal.

7. A device for detecting the setting of a stove, characterized in that, The detection device is electrically connected to a knob on the control lever of the stove. The knob has a flame sensor. The knob also includes a rotor and a start detection unit, both of which are connected to the rotor. The knob further includes a stator, along which the rotor is connected and can rotate about the axis of the stator. The stator is used to connect to the control lever of the stove. The knob also includes a reset unit, which is located between the rotor and the stator and is used to drive the rotor to rotate in the opposite direction to the rotation caused by the external force. The detection device includes: The first module is used to determine whether the knob has been fully rotated; The second module is used to acquire the flame signal detected by the flame sensor when the knob is rotated to completion; The third module is used to determine the current gear information of the stove based on the numerical information of the flame signal; wherein, the numerical information includes the radiation intensity of the stove flame; The first module is also used to determine whether the start detection unit is triggered; if the start detection unit is triggered, the flame sensor is woken up, and it is detected whether the start detection unit stops triggering; if the start detection unit stops triggering, it is determined that the knob has been turned. The step of determining whether the startup detection unit is triggered includes: When the rotor is subjected to an external force, it rotates, causing the start-up detection unit to rotate in the forward direction. The start-up detection unit then contacts the stator and is triggered. The detection of whether the start detection unit stops triggering includes: When the external force on the rotor stops, the reset part drives the rotor to rotate in the opposite direction, and the start detection part moves away from the stator and is stopped from being triggered.

8. A knob, characterized in that, The knob includes a stove setting detection device as described in claim 7, and the knob also includes a circuit board and a flame sensor, both of which are electrically connected to the circuit board.

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