A stove and a method for recognizing a pot moving state thereof
By installing an anti-dry-burning detection module and a signal recognition switch on the stove, and filtering out momentary interference over a preset duration, the problems of inaccurate pot-moving status recognition and high cost in existing technologies are solved, achieving highly reliable and low-cost pot-moving status recognition.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG MACRO GAS APPLIANCE
- Filing Date
- 2026-05-28
- Publication Date
- 2026-07-24
Smart Images

Figure CN122447732A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of intelligent control of household stoves, and in particular to a stove and a method for recognizing the state of a pot being moved. Background Technology
[0002] Accurately identifying the pot's movement status during cooking is crucial for automatic flame adjustment, flameout, and safety features in cooktops and integrated cooktops. Currently, most cooktops rely on detecting burner temperature, primarily using infrared temperature sensors, cameras mounted on the range hood, or various external temperature measurement modules to indirectly determine whether the pot has left the burner based on temperature changes.
[0003] Existing traditional detection methods have significant technical flaws. Cooktops equipped with anti-dry-burning probes rely solely on probe temperature changes to determine when to move the pot and control the flame adjustment or shutdown. However, in actual cooking, user actions such as tossing the pot and the significant differences in the heat conductivity of different pots can easily lead to misjudgments. On the other hand, installing temperature measuring and infrared sensors on the range hood for remote detection is affected by complex conditions such as kitchen fumes, ambient temperature, and flame interference, resulting in a high misjudgment rate and potentially causing malfunctions in the cooktop. This not only affects the user experience but also poses safety hazards such as dry burning of the gas.
[0004] Using a built-in camera in the range hood for image recognition also has many drawbacks. Not only does it require additional camera, image recognition components, and a wireless communication module between the cooktop and the range hood, resulting in high overall hardware costs, but long-term oil and dirt accumulation in the kitchen can also adhere to the lens surface, causing blurry images and recognition failures. The additional wireless support structure further increases the overall cost of the machine, limiting its applicability to various scenarios. Summary of the Invention
[0005] This application provides a stove and a method for recognizing the state of a pot being moved. The method directly detects the pressure state of the anti-dry-burning detection module through a signal recognition switch to recognize the pot being moved, eliminating the reliance on temperature and image recognition. This method is accurate, reliable, and lower in cost.
[0006] In a first aspect, this application provides a method for identifying the pot-moving state of a stove. The stove includes an anti-dry-burning detection module and a signal recognition switch disposed on the moving path of the anti-dry-burning detection module. The method is executed by the control module of the stove and includes: acquiring a status signal output by the signal recognition switch; determining whether the anti-dry-burning detection module is in a pressurized state or a non-pressurized state based on the status signal; when the anti-dry-burning detection module is in a pressurized state, determining that the stove is in a pot-sitting state; when the anti-dry-burning detection module is in a non-pressurized state, and the duration of the non-pressurized state meets a preset duration, determining that the stove is in a pot-moving state.
[0007] In one possible implementation, after determining that the stove is in a pot-moving state, the method further includes: generating a heat adjustment command or a fire-off command in response to the pot-moving state; sending the heat adjustment command to the gas regulating device of the stove, or sending the fire-off command to the solenoid valve of the stove.
[0008] In one possible implementation, the step of generating a heat adjustment command or a fire-off command in response to the pot-moving state specifically includes: determining whether the stove has a heat adjustment function; when the stove has a heat adjustment function, generating a heat adjustment command, wherein the heat adjustment command is used to control the gas regulating device to adjust the heat; when the stove does not have a heat adjustment function, generating a fire-off command, wherein the fire-off command is used to control the solenoid valve to cut off the gas supply.
[0009] In one possible implementation, acquiring the status signal output by the signal recognition switch and determining whether the anti-dry-burning detection module is in a pressurized or unpressurized state based on the status signal specifically includes: real-time acquisition of the status signal of the signal recognition switch; when the status signal is the first status signal, determining that the anti-dry-burning detection module is in a pressurized state; when the status signal is the second status signal, determining that the anti-dry-burning detection module is in an unpressurized state.
[0010] In one possible implementation, after determining whether the anti-dry-burning detection module is in a pressurized or unpressurized state based on the state signal, the method further includes: when it is determined that the anti-dry-burning detection module is in an unpressurized state, starting a timer to accumulate the duration of the unpressurized state and comparing the duration with the preset duration in real time.
[0011] In one possible implementation, after determining whether the anti-dry-burning detection module is in a pressurized or unpressurized state based on the state signal, the method further includes: when accumulating the duration of the unpressurized state, if it is determined that the anti-dry-burning detection module has switched from the unpressurized state to the pressurized state, then the timer is stopped and the accumulated duration is cleared.
[0012] In one possible implementation, the anti-dry-burning detection module is an axially extendable anti-dry-burning probe, and the signal recognition switch is a micro switch; wherein the micro switch is disposed inside or outside the anti-dry-burning probe.
[0013] Secondly, this application also provides a cooktop, including: an anti-dry-burning detection module; a signal recognition switch disposed on the movement path of the anti-dry-burning detection module for outputting a status signal indicating whether the anti-dry-burning detection module is under pressure; and a control module connected to the anti-dry-burning detection module and the signal recognition switch respectively; the control module is configured to execute the pot-moving status recognition method as described in any of the above claims.
[0014] In one possible implementation, the stove provided in this application further includes: a gas regulating device and a solenoid valve; wherein, the control module is connected to the gas regulating device and the solenoid valve respectively; the gas regulating device is used to receive a firepower adjustment command sent by the control module to adjust the firepower; the solenoid valve is used to receive a flame-off command sent by the control module to cut off the gas supply.
[0015] In one possible implementation, the anti-dry-burn detection module includes: an anti-dry-burn probe movable along the axial direction and an elastic reset element; wherein, the elastic reset element is connected to the anti-dry-burn probe and is used to drive the anti-dry-burn probe to reset to its initial position when the pot on the stove is removed; the signal recognition switch is disposed on the movement path of the anti-dry-burn probe and is located at the position corresponding to when the anti-dry-burn probe is pressed and moved to the end point, and is used to be triggered to output a first state signal when the anti-dry-burn probe is pressed into place.
[0016] Thirdly, embodiments of this application also provide a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the above-described method.
[0017] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program that, when executed by a processor, can implement the above-described method.
[0018] This application provides a method for identifying the status of a stove and its pot-moving function, which has the following advantages compared with the prior art: The cooktop includes an anti-dry-burning detection module and a signal recognition switch disposed on the movement path of the anti-dry-burning detection module. The method is executed by the control module of the cooktop. By acquiring the status signal output by the signal recognition switch, the cooktop determines whether the anti-dry-burning detection module is in a pressurized or unpressurized state based on the status signal. When the anti-dry-burning detection module is in a pressurized state, the cooktop is determined to be in a pot-sitting state. When the anti-dry-burning detection module is in an unpressurized state, and the duration of the unpressurized state meets a preset duration, the cooktop is determined to be in a pot-moving state. Compared to existing technologies that rely on temperature detection, infrared, or cameras to identify the movement of the pot, which are susceptible to interference from oil fumes, ambient temperature, differences in cookware, and oil stains, resulting in high false alarm rates and high hardware costs, this solution only needs to set a signal recognition switch on the movement path of the anti-dry-burning detection module to directly identify the pot sitting and moving based on the mechanical pressure state. Combined with a preset time to filter out instantaneous pot-flipping interference, the identification is not affected by temperature and environmental factors. It does not require the addition of complex sensors and communication components, has a simple structure, and is reliable in identification. It effectively solves the technical problems of inaccurate pot-moving identification, easy malfunction, and high cost of existing technologies. Attached Figure Description
[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.
[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0022] Figure 1 This is a flowchart illustrating an embodiment of a method for identifying the pot-moving status of a stove provided in this application; Figure 2 This is a schematic diagram of the structure of one embodiment of a stove provided in this application; Figure 3 This is a schematic diagram of the structure of a computer device provided in this application. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.
[0025] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0026] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0027] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0028] As used in this specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrases "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."
[0029] Example 1, see Figure 1 , Figure 1This is a flowchart illustrating an embodiment of a method for recognizing the pot-moving status of a stove provided in this application. The stove includes an anti-dry-burning detection module and a signal recognition switch disposed on the moving path of the anti-dry-burning detection module. The method is executed by the control module of the stove. Figure 1 As shown, the method includes steps 101-103, as detailed below: Step 101: Obtain the status signal output by the signal recognition switch, and determine whether the anti-dry burning detection module is under pressure or not under pressure based on the status signal.
[0030] In one embodiment, the anti-dry-burning detection module is an axially extendable anti-dry-burning probe, and the signal recognition switch is a micro switch; wherein the micro switch is disposed inside or outside the anti-dry-burning probe.
[0031] Specifically, the top of the anti-dry-burning probe is used to contact the bottom surface of the pot; the anti-dry-burning probe is provided with an elastic reset element inside, preferably, the elastic reset element is a compression spring, so that the anti-dry-burning probe can move downward along the axis under the action of external force, and automatically reset upward to the initial position after the external force is removed.
[0032] Specifically, when the microswitch is located inside the anti-dry-burn probe, the microswitch is fixedly assembled in the inner cavity of the anti-dry-burn probe and is correspondingly positioned at a triggerable position when the anti-dry-burn probe is pressed and moved to the end of its stroke. When the anti-dry-burn probe moves downward to its lowest point under the pressure of the bottom surface of the pot, the inner wall of the anti-dry-burn probe or the contact component linked to the anti-dry-burn probe directly presses against and down the contact of the microswitch, causing the microswitch to close and conduct, and output a first state signal. When the pot is removed, the anti-dry-burn probe moves upward and resets under the action of the elastic reset element, the contact component disengages from the microswitch contact, the microswitch opens and outputs a second state signal.
[0033] Specifically, when the microswitch is located outside the anti-dry-burn probe, the microswitch is fixedly installed directly below the anti-dry-burn probe and on the downward travel path of the anti-dry-burn probe; the bottom end of the anti-dry-burn probe is provided with a contact part for triggering the microswitch; when the pot is placed on the stove, the bottom surface of the pot presses down on the anti-dry-burn probe, causing it to move downward, and the contact part at the bottom end of the anti-dry-burn probe moves downward simultaneously; when the anti-dry-burn probe moves to the lowest point, the contact part presses against the contact of the microswitch, causing the microswitch to close and conduct, and output a first state signal; when the pot is removed, the anti-dry-burn probe resets upward under the action of the elastic reset element, the contact part separates from the contact of the microswitch, the microswitch disconnects and outputs a second state signal.
[0034] In this embodiment, by placing a microswitch inside or outside the anti-dry-burning probe, the axial extension and retraction of the anti-dry-burning probe directly triggers the microswitch to open or close. The overall structure is compact, easy to assemble, and has low production costs. At the same time, the cookware status is identified by mechanical triggering. Compared with traditional temperature detection and image recognition detection methods, this can effectively avoid problems such as oil stains obscuring the surface and ambient light interference, resulting in accurate detection results and high reliability.
[0035] In one embodiment, the status signal of the signal recognition switch is acquired in real time; when the status signal is the first status signal, it is determined that the anti-dry burning detection module is in a pressurized state; when the status signal is the second status signal, it is determined that the anti-dry burning detection module is in a non-pressurized state.
[0036] Specifically, the electrical signal output terminal of the signal recognition switch is electrically connected to the signal acquisition pin of the stove control module. The control module continuously and in real time reads the status signal output by the signal recognition switch at a fixed sampling frequency to achieve uninterrupted acquisition of the status signal.
[0037] Specifically, based on the output state of the signal identification switch, the corresponding electrical signal is defined as a first state signal and a second state signal. The first state signal and the second state signal correspond to the pressure state and non-pressure state of the anti-dry burning detection module, respectively, and the correspondence between the two can be set according to the actual wiring and control logic.
[0038] Specifically, when the acquired status signal is the first status signal, it is determined that the anti-dry burning detection module is under pressure; wherein, the first status signal can correspond to the closed or open state of the signal identification switch, which is specifically determined by the system preset logic.
[0039] Specifically, when the acquired status signal is the second status signal, it is determined that the anti-dry burning detection module is in a non-pressurized state; wherein, the second status signal can correspond to the open or closed state of the signal identification switch, and the second status signal is set opposite to the first status signal.
[0040] In this embodiment, the first state signal represents that the signal recognition switch is closed and the anti-dry-burning detection module is in a pressurized state, while the second state signal represents that the signal recognition switch is open and the anti-dry-burning detection module is in a non-pressurized state.
[0041] Specifically, when the acquired status signal is the first status signal, it means that the signal recognition switch is triggered to close by the axial extension and retraction of the anti-dry-burning probe. Correspondingly, the anti-dry-burning probe moves downward to the end of its stroke under the pressure of the bottom surface of the pot. Based on this, the control module determines that the anti-dry-burning detection module is in a pressure state.
[0042] Specifically, when the acquired status signal is the second status signal, it indicates that the signal recognition switch has not been triggered or has been disconnected. The corresponding anti-dry-burning probe is reset upward under the action of the elastic reset element, and there is no pressure from the cookware. Based on this, the control module determines that the anti-dry-burning detection module is in a non-pressurized state.
[0043] In one embodiment, when determining whether the anti-dry-burning detection module is in a pressurized or unpressurized state based on the status signal, the status signal output by the signal recognition switch can be continuously collected according to a preset sampling period; the status signals collected for a preset number of consecutive times are verified; if the status signals collected for a preset number of consecutive times are all the first status signal, it is determined that the anti-dry-burning detection module is in a pressurized state; if the status signals collected for a preset number of consecutive times are all the second status signal, it is determined that the anti-dry-burning detection module is in an unpressurized state.
[0044] Specifically, the control module verifies the status signal of the signal recognition switch by collecting it a preset number of times. Only when the multiple sampled status signals are the first status signal or all of them are the second status signal, the anti-dry burning detection module is determined to be in the corresponding pressure-bearing state or non-pressure-bearing state, so as to avoid misjudgment caused by instantaneous vibration and electromagnetic interference, and improve the stability and accuracy of cookware status recognition.
[0045] In one embodiment, after determining whether the anti-dry-burning detection module is in a pressurized state or an unpressurized state based on the state signal, the method further includes: when it is determined that the anti-dry-burning detection module is in an unpressurized state, starting a timer to accumulate the duration of the unpressurized state, and comparing the duration with the preset duration in real time.
[0046] Preferably, the preset time can be configured according to the cooking habits of different user groups; for example, for users who frequently toss the pan, the preset time can be set to 3 seconds; for users who pursue a fast response, the preset time can be set to 1 second; in addition, it can also be adjusted by the human-computer interaction interface of the stove, such as buttons, knobs or APP, to meet personalized needs.
[0047] Specifically, when the control module determines that the anti-dry-burning detection module is in a non-pressurized state, it immediately starts the built-in timer to accumulate the duration of the non-pressurized state in real time. At the same time, the control module will acquire the accumulated duration output by the timer in real time and compare the duration with the preset duration in real time for subsequent determination of whether the stove is in the pot-moving state.
[0048] In one embodiment, when accumulating the duration of the non-pressurized state, if it is determined that the anti-dry burning detection module has switched from the non-pressurized state to the pressurized state, the timer is stopped and the accumulated duration is cleared.
[0049] Specifically, during the process of the timer accumulating the duration of the non-pressurized state, if the status signal collected in real time by the control module switches from the second status signal to the first status signal, that is, it is determined that the anti-dry burning detection module has changed from the non-pressurized state to the pressurized state, then the timer is immediately stopped and the accumulated duration of the non-pressurized state in the timer is cleared and reset, waiting for the next non-pressurized state to be triggered to restart the timer.
[0050] Example Explanation: In the scenario of tossing the pan, the pan is briefly removed from the stove and then quickly placed back. At this time, the real-time acquired status signal switches from the second status signal to the first status signal. The anti-dry-burning detection module restores the pressure state when the duration of the non-pressure state does not reach the preset duration. At this time, the control module stops timing and clears the accumulated duration, and does not trigger the pan-moving judgment, thereby avoiding accidental shutdown or accidental adjustment of the heat due to tossing the pan.
[0051] Step 102: When the anti-dry-burning detection module is under pressure, it is determined that the stove is in the pot-sitting state.
[0052] In one embodiment, since the anti-dry-burning detection module is arranged in the center of the stove burner, the weight of the pot will only act on the anti-dry-burning detection module when the pot is placed on the burner, causing it to be pressed down and thus triggering the signal recognition switch to output the first state signal. The pressure on the anti-dry-burning detection module is a direct physical result of the actual placement of the pot, and there is a unique mechanical correlation between the two. Therefore, when the anti-dry-burning detection module is detected to be under pressure, it can be determined that the stove is in the pot-sitting state.
[0053] Step 103: When the anti-dry burning detection module is in a non-pressurized state and the duration of the non-pressurized state meets the preset duration, it is determined that the stove is in the pot-moving state.
[0054] In one embodiment, the anti-dry-burning detection module being in a non-pressurized state only indicates that the cookware has temporarily left the probe. This situation could be due to short-term normal operations such as tossing the pan or serving food, or it could be due to the cookware being moved for an extended period of time, posing a risk of dry burning. Therefore, by setting a preset duration, when the anti-dry-burning detection module is in a non-pressurized state, the instantaneous non-pressurized signal caused by short-term pan movement can be filtered out. Only when the duration of the non-pressurized state reaches the preset duration does it indicate that the cookware has not been returned to the burner for a long time and is not a temporary action during cooking. Therefore, it is determined that the stove is in a pan-moving state, which can trigger subsequent safety protections such as flameout and gas shut-off, balancing convenience and safety.
[0055] In one embodiment, after determining that the stove is in the pot-moving state, the method further includes: generating a heat adjustment command or a fire-off command in response to the pot-moving state; sending the heat adjustment command to the gas regulating device of the stove, or sending the fire-off command to the solenoid valve of the stove.
[0056] Specifically, the gas regulating device is not limited to a steady-state valve, a gas proportional valve, or other devices that can adjust the flame intensity; wherein, the gas proportional valve is used to finely adjust the flame intensity; and the steady-state valve is used to switch between high and low flame intensity.
[0057] Specifically, it is determined whether the stove has a firepower adjustment function; when the stove has a firepower adjustment function, a firepower adjustment command is generated, wherein the firepower adjustment command is used to control the gas regulating device to adjust the firepower; when the stove does not have a firepower adjustment function, a flameout command is generated, wherein the flameout command is used to control the solenoid valve to cut off the gas supply.
[0058] Specifically, the control module pre-stores hardware function identifiers for the stove, indicating whether the stove is equipped with a gas regulating device and whether it supports continuous firepower adjustment. The control module first retrieves the preset hardware function identifiers to determine if the stove has firepower adjustment functionality. When the stove is found to have firepower adjustment functionality, a corresponding firepower adjustment command is generated. This command controls the gas regulating device to reduce the valve opening, decreasing the gas intake and thus lowering the stove's firepower, mitigating the safety hazard of burning food without a pot. When the stove is found to lack firepower adjustment functionality or not be equipped with a gas regulating device, a flameout command is directly generated. This command controls the solenoid valve to cut off the gas supply, achieving flameout protection for the stove. This adapts to stoves with different hardware configurations, enabling tiered safety management after the pot has been removed for an extended period.
[0059] Example 2, see Figure 2 , Figure 2 This is a structural schematic diagram of one embodiment of a stove provided in this application. Figure 2As shown, the stove includes a control module 201, an anti-dry-burning detection module 202, and a signal recognition switch 203, as detailed below: The signal recognition switch 203 is located on the moving path of the anti-dry burning detection module 202 and is used to output a status signal indicating whether the anti-dry burning detection module 202 is under pressure.
[0060] The control module 201 is connected to the anti-dry burning detection module 202 and the signal recognition switch 203 respectively.
[0061] The control module 201 is configured to perform the pot transfer status recognition method as described in any one of the above embodiments 1.
[0062] In one embodiment, the control module 201 of the stove can be integrated inside the pulse igniter, forming an intelligent pulse igniter that integrates signal acquisition, timing, logic judgment, and ignition control. It should be noted that the pulse igniter here is not a single-function device that only generates ignition pulses in the traditional sense; it has internal or external connections to circuit modules, such as an MCU unit, that implement the signal acquisition, timing, and logic judgment functions required by this application. It is understood that in other embodiments, the control module 201 can also be a microcontroller unit independently of the pulse igniter and connected to the pulse igniter signal; this embodiment does not limit this.
[0063] In one embodiment, the signal recognition switch 203 is disposed on the moving path of the anti-dry-burning detection module 202, and is used to output a status signal indicating whether the anti-dry-burning detection module 202 is under pressure; the control module 201 is signal-connected to the signal recognition switch 203, and acquires the status signal of the signal recognition switch 203 in real time through a built-in or external signal acquisition module, and completes status recognition, duration accumulation and safety control logic calculation through its own configured timing module and logic judgment module.
[0064] In one embodiment, the anti-dry-burn detection module 202 includes an axially movable anti-dry-burn probe and an elastic reset element; the elastic reset element is connected to the anti-dry-burn probe and is used to drive the anti-dry-burn probe to reset to its initial position when the cookware is removed. The signal recognition switch 203 is disposed on the movement path of the anti-dry-burn probe and is located at the position corresponding to when the anti-dry-burn probe is pressed and moves to the end point, and is used to be triggered to output a closed signal when the anti-dry-burn probe is pressed into place.
[0065] Preferably, the anti-dry-burning detection module 202 is a telescopic probe structure. When the pot is placed on the stove, the probe is compressed downward by the weight of the pot to ensure good contact between the probe's sensing surface and the bottom of the pot.
[0066] Preferably, the elastic reset element is a compression spring, which enables the anti-dry-burn probe to move downward along the axis under the action of external force, and automatically reset upward to the initial position after the external force is removed.
[0067] In one embodiment, the signal recognition switch 203 is a micro switch, which can be integrated into the inside of the anti-dry-burning detection module 202 or independently disposed outside the anti-dry-burning detection module 202.
[0068] Specifically, when the microswitch is located inside the anti-dry-burn probe, the microswitch is fixedly assembled in the inner cavity of the anti-dry-burn probe and is correspondingly positioned at a triggerable position when the anti-dry-burn probe is pressed and moved to the end of its stroke. When the anti-dry-burn probe moves downward to its lowest point under the pressure of the bottom surface of the pot, the inner wall of the anti-dry-burn probe or the contact component linked to the anti-dry-burn probe directly presses against and down the contact of the microswitch, causing the microswitch to close and conduct, and output a first state signal. When the pot is removed, the anti-dry-burn probe moves upward and resets under the action of the elastic reset element, the contact component disengages from the microswitch contact, the microswitch opens and outputs a second state signal.
[0069] Specifically, when the microswitch is located outside the anti-dry-burn probe, the microswitch is fixedly installed directly below the anti-dry-burn probe and on the downward travel path of the anti-dry-burn probe; the bottom end of the anti-dry-burn probe is provided with a contact part for triggering the microswitch; when the pot is placed on the stove, the bottom surface of the pot presses down on the anti-dry-burn probe, causing it to move downward, and the contact part at the bottom end of the anti-dry-burn probe moves downward simultaneously; when the anti-dry-burn probe moves to the lowest point, the contact part presses against the contact of the microswitch, causing the microswitch to close and conduct, and output a first state signal; when the pot is removed, the anti-dry-burn probe resets upward under the action of the elastic reset element, the contact part separates from the contact of the microswitch, the microswitch disconnects and outputs a second state signal.
[0070] In this embodiment, by placing a microswitch inside or outside the anti-dry-burning probe, the axial extension and retraction of the anti-dry-burning probe directly triggers the microswitch to open or close. The overall structure is compact, easy to assemble, and has low production costs. At the same time, the cookware status is identified by mechanical triggering. Compared with traditional temperature detection and image recognition detection methods, this can effectively avoid problems such as oil stains obscuring the surface and ambient light interference, resulting in accurate detection results and high reliability.
[0071] In this embodiment, the stove further includes a gas regulating device and a solenoid valve; the control module 201 is connected to the gas regulating device and the solenoid valve respectively; wherein, the gas regulating device is used to receive the firepower adjustment command sent by the pulse igniter to adjust the firepower; the solenoid valve is used to receive the flame-off command sent by the pulse igniter to cut off the gas source.
[0072] Specifically, the gas regulating device is not limited to a steady-state valve, a gas proportional valve, or other devices that can adjust the flame intensity; wherein, the gas proportional valve is used to finely adjust the flame intensity; and the steady-state valve is used to switch between high and low flame intensity.
[0073] Preferably, when the gas regulating device is a gas proportional valve, the control module 201 is connected to the gas proportional valve, which is used to receive the firepower adjustment command sent by the pulse igniter to achieve fine adjustment of the firepower; when the gas regulating device is a steady-state valve, the control module 201 is connected to the steady-state valve, which is used to receive the firepower adjustment command sent by the pulse igniter to achieve adjustment of the firepower, such as adjusting from high fire to low fire.
[0074] Preferably, the solenoid valve is a flameout protection solenoid valve.
[0075] In this embodiment, the stove also includes a thermocouple, an ignition needle, a power supply battery, and a micro switch for ignition and ignition. The power supply battery provides power to the pulse igniter, the signal recognition switch 203, the solenoid valve, and the gas regulating device.
[0076] Specifically, the control module 201 is electrically connected to the ignition needle, the thermocouple, and the microswitch for ignition and flameout respectively. The ignition needle is used to output a high-voltage electric spark to ignite the stove; the thermocouple is used to detect the flame signal to achieve conventional flameout protection; and the microswitch for ignition and flameout is used to receive user operations to control the stove's ignition and flameout.
[0077] In this embodiment, when the stove is in operation, the control module 201 determines whether the anti-dry-burning detection module 202 is in a pressurized or unpressurized state by real-time acquisition of the status signal output by the signal recognition switch 203. When the anti-dry-burning detection module 202 is in a pressurized state, the control module 201 determines that the stove is in a pot-supporting state and controls the stove to maintain the current normal operating heat.
[0078] When the anti-dry-burn detection module 202 is in a non-pressurized state, the control module 201 accumulates the duration of the non-pressurized state through the timing module and compares it with the preset duration in real time. If the anti-dry-burn detection module 202 is detected to return to the pressurized state during the timing process, for example, if the user flips the pot and then puts it back down, the control module 201 stops timing and resets the accumulated duration to zero, without triggering the pot-moving judgment; if the duration of the non-pressurized state reaches the preset duration, the control module 201 determines that the stove is in the pot-moving state through the logic judgment module.
[0079] After determining the pot-moving status, the control module 201 performs corresponding operations according to the stove's hardware configuration: when the stove has a firepower adjustment function, that is, when it is equipped with a gas adjustment device, the control module 201 generates a firepower adjustment command through the pulse igniter and sends it to the gas adjustment device to adjust the firepower; when the stove does not have a firepower adjustment function, the pulse igniter generates a flame-off command and sends it to the solenoid valve to cut off the gas supply.
[0080] The stove described in this embodiment uses a pulse igniter as its core control unit, integrating or connecting external signal acquisition, timing, and logic judgment modules. It eliminates the need for an additional independent main control board, resulting in a compact structure and low cost. A mechanical signal recognition switch 203 identifies the pot's status, unaffected by oil, light, or temperature interference, ensuring stable and reliable detection. By setting a preset duration and a timing interruption reset mechanism, a brief period of non-pressure caused by tossing the pot will not trigger the pot-moving detection, effectively preventing accidental flameout or adjustment to low heat. Depending on whether the stove has a heat adjustment function, it selectively performs low heat or flameout operations, adapting to stoves with different hardware configurations while balancing safety and ease of use. It can identify the pot-moving status while also being compatible with conventional ignition and flameout protection functions, without affecting the basic operation of the stove.
[0081] The above-mentioned stove pot-moving status recognition device can implement the stove pot-moving status recognition method of the above method embodiment. The options in the above method embodiment are also applicable to this embodiment, and will not be described in detail here.
[0082] like Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of a computer device provided in this application; it includes a processor 111, a communication interface 112, a memory 113 and a communication bus 114, wherein the processor 111, the communication interface 112 and the memory 113 communicate with each other through the communication bus 114, and the memory 113 is used to store computer programs.
[0083] In one embodiment of this application, the processor 111, when executing the program stored in the memory 113, implements the stove pot moving state recognition method provided in any of the aforementioned method embodiments.
[0084] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program may be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the process steps of the embodiments of the above methods.
[0085] Therefore, this application embodiment also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the stove pot-moving state recognition method as provided in any of the foregoing method embodiments.
[0086] The storage medium is a physical, non-transient storage medium, such as a USB flash drive, external hard drive, read-only memory (ROM), magnetic disk, or optical disk, or any other physical storage medium capable of storing program code. The computer-readable storage medium can be non-volatile or volatile.
[0087] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.
[0088] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.
[0089] The steps in the methods of this application embodiment can be adjusted, merged, or deleted according to actual needs. The units in the apparatus of this application embodiment can be merged, divided, or deleted according to actual needs. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
[0090] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a terminal, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.
[0091] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0092] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.
[0093] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A method for recognizing the pot-moving status of a stove, characterized in that, The cooktop includes an anti-dry-burning detection module and a signal recognition switch disposed on the movement path of the anti-dry-burning detection module. The method is executed by the control module of the cooktop and includes: Obtain the status signal output by the signal recognition switch, and determine whether the anti-dry burning detection module is under pressure or not under pressure based on the status signal; When the anti-dry-burning detection module is under pressure, it is determined that the stove is in the pot-sitting state; When the anti-dry-burning detection module is in a non-pressurized state and the duration of the non-pressurized state meets the preset duration, it is determined that the stove is in the pot-moving state.
2. The method according to claim 1, characterized in that, After determining that the stove is in the pot-moving state, the method further includes: In response to the pot-moving state, a heat adjustment command or a heat-off command is generated; The firepower adjustment command is sent to the gas regulating device of the stove, or the flameout command is sent to the solenoid valve of the stove.
3. The method according to claim 2, characterized in that, The process of generating a heat adjustment command or a heat-off command in response to the pot-moving state specifically includes: Determine whether the stove has a firepower adjustment function; When the stove has a firepower adjustment function, a firepower adjustment command is generated, wherein the firepower adjustment command is used to control the gas regulating device to adjust the firepower; When the stove does not have a firepower adjustment function, a fire-off command is generated, wherein the fire-off command is used to control the solenoid valve to cut off the gas supply.
4. The method according to claim 1, characterized in that, The step of acquiring the status signal output by the signal recognition switch and determining whether the anti-dry-burning detection module is in a pressurized or unpressurized state based on the status signal specifically includes: The status signal of the signal identification switch is acquired in real time; When the status signal is the first status signal, it is determined that the anti-dry burning detection module is under pressure. When the status signal is the second status signal, it is determined that the anti-dry burning detection module is in a non-pressurized state.
5. The method according to claim 1, characterized in that, After determining whether the anti-dry-burning detection module is in a pressurized or unpressurized state based on the status signal, the method further includes: When the anti-dry burning detection module is determined to be in a non-pressurized state, a timer is started to accumulate the duration of the non-pressurized state and compare the duration with the preset duration in real time.
6. The method according to claim 5, characterized in that, After determining whether the anti-dry-burning detection module is in a pressurized or unpressurized state based on the status signal, the method further includes: When accumulating the duration of the non-pressurized state, if it is determined that the anti-dry burning detection module has switched from the non-pressurized state to the pressurized state, the timer is stopped and the accumulated duration is cleared.
7. The method according to claim 1, characterized in that, The anti-dry-burning detection module is an anti-dry-burning probe that can extend and retract along the axis, and the signal recognition switch is a micro switch; The micro switch is located inside or outside the anti-dry-burning probe.
8. A stove, characterized in that, include: Anti-dry-burning detection module; A signal recognition switch is set on the moving path of the anti-dry burning detection module to output a status signal indicating whether the anti-dry burning detection module is under pressure. The control module is connected to the anti-dry-burning detection module and the signal recognition switch, respectively. The control module is configured to perform the pot-moving status recognition method as described in any one of claims 1 to 7.
9. A stove according to claim 8, characterized in that, Also includes: Gas regulating device and solenoid valve; The control module is connected to both the gas regulating device and the solenoid valve. The gas regulating device is used to receive the firepower regulation command sent by the control module to regulate the firepower; The solenoid valve is used to receive the shut-off command sent by the control module to cut off the gas supply.
10. A stove according to claim 8, characterized in that, The anti-dry-burn detection module includes: an anti-dry-burn probe that can move along the axial direction and an elastic reset element; The elastic reset element is connected to the anti-dry-burn probe and is used to drive the anti-dry-burn probe to reset to its initial position when the pot on the stove is removed. The signal recognition switch is located on the moving path of the anti-dry-burning probe and at the position corresponding to when the anti-dry-burning probe is pressed and moves to the end point. It is used to be triggered to output a first state signal when the anti-dry-burning probe is pressed into place.