Gas stove and control method thereof
By installing the rangefront sensor on the gas stove, the position of the pot is detected, and the firepower is automatically lowered or stopped when the pot is removed, which solves the problem that the traditional gas stove cannot automatically adjust the firepower, and achieves efficient use and safety guarantee of gas.
Patent Information
- Application Number
- CN202310886242.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-18
- Publication Date
- 2025-01-21
AI Technical Summary
Traditional gas stoves cannot automatically lower or turn off the firepower when the user removes the cookware, resulting in gas waste and safety hazards.
A ranging sensor is used to detect the distance between the pot and the gas stove. When the distance exceeds the preset threshold or the distance is not detected, the controller reduces or stops the heating power of the burner.
The firepower of automatically lowering or stopping the gas stove when the user moves the pot, avoids waste of gas and hidden safety hazards, and improves the user experience.
Smart Images
Figure CN119333855A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of stoves, and in particular to a gas stove and a control method thereof. Background Art
[0002] Gas stoves are kitchen appliances that use liquefied petroleum gas (liquid), artificial gas, natural gas and other gas fuels for direct heating. Traditional gas stoves use purely mechanical cock valves or gas flow valves to control the amount of gas to achieve the function of controlling the amount of fire or shutting it off. They are simple and concise to use, but the purely mechanical structure has the disadvantage of being unable to automatically control the fire.
[0003] During the cooking process, users sometimes take the pot away from the gas stove. Sometimes it is inconvenient to reduce or turn off the fire of the gas stove immediately. Sometimes they even take the pot away for a long time to clean it. They also forget to turn off the gas stove. This leads to certain safety hazards, waste of gas and other problems. It is not user-friendly and the user experience is not ideal. Summary of the invention
[0004] The embodiment of the present application provides a gas stove and a control method thereof, which are used to reduce the heating power of the gas stove when it is detected that a user has removed a cookware from the gas stove, so as to avoid wasting gas.
[0005] In a first aspect, an embodiment of the present application provides a gas stove, comprising: a burner head for heating an object placed on the gas stove; a distance measuring sensor for measuring the distance between the distance measuring sensor and the object placed on the gas stove; and a controller connected to the distance measuring sensor; the controller being configured to: read the distance measured by the distance measuring sensor when the burner head is heating; and lower the heating power of the burner head when the distance measured by the distance measuring sensor is above a first preset threshold or the distance is not measured by the distance measuring sensor.
[0006] The gas stove provided in the embodiment of the present application includes a distance sensor for measuring the distance between the distance sensor and an object (such as a pot) placed on the gas stove. In this way, the controller can read the distance measured by the distance sensor, and when the distance measured by the distance sensor is above a first preset threshold, or when the distance sensor does not measure the distance, determine that the user has taken the pot away from the gas stove during use, thereby lowering the heating power of the burner, without the user having to manually adjust the power of the gas stove, and also avoiding waste of gas.
[0007] In combination with the first implementation method of the first aspect, after lowering the heating power of the burner, the controller is also configured to: count the duration, the duration includes: the time when the distance measured by the ranging sensor remains above the first preset threshold, and the time when the ranging sensor does not measure the distance; when the duration reaches more than the preset time, control the burner to stop heating.
[0008] In combination with the second implementation method of the first aspect, after counting the duration, the controller is also configured to: if the distance measured by the distance measuring sensor is within a preset distance interval, adjust the heating power of the burner head to the target heating power; the upper limit value of the preset distance interval is below the first preset distance; the target heating power is the heating power of the burner head before lowering the heating power of the burner head.
[0009] In combination with the third implementation method of the first aspect, the gas stove also includes: a light-transmitting panel; the ranging sensor is a laser ranging sensor; the laser ranging sensor is arranged on the side of the light-transmitting panel away from the object, and the angle between the light path of the laser emitted by the ranging sensor and the light-transmitting panel is less than 90°.
[0010] In combination with the fourth implementation method of the first aspect, after reading the distance measured by the ranging sensor, the controller is also configured to: output a prompt message when the distance measured by the ranging sensor is below a second preset threshold; the second preset threshold is below the lower limit of the preset distance interval; the prompt message is used to prompt the user to move the obstruction or clean the stains on the light-transmitting panel.
[0011] In combination with the fifth implementation manner of the first aspect, the distance between the distance measuring sensor and the furnace head is greater than a preset distance.
[0012] In a second aspect, an embodiment of the present application provides a control method for a gas stove, the gas stove comprising: a burner head for heating an object placed on the gas stove; a distance measuring sensor for measuring the distance between the distance measuring sensor and the object placed on the gas stove; a controller connected to the distance measuring sensor and a firepower adjustment device; the control method comprising: when the burner head is heating, reading the distance measured by the distance measuring sensor; when the distance measured by the distance measuring sensor is above a first preset threshold, or when the distance measured by the distance measuring sensor does not measure the distance, lowering the heating firepower of the burner head.
[0013] In combination with the first implementation method of the second aspect, after lowering the heating power of the burner, the control method also includes: counting the duration, the duration includes: the time when the distance measured by the ranging sensor remains above the first preset threshold, and the time when the ranging sensor does not measure the distance; when the duration reaches more than the preset time, controlling the burner to stop heating.
[0014] In combination with the second implementation method of the second aspect, after counting the duration, the control method also includes: if the distance measured by the ranging sensor is within a preset distance interval, adjusting the heating power of the burner head to a target heating power; the upper limit value of the preset distance interval is below a first preset distance; the target heating power is the heating power of the burner head before lowering the heating power of the burner head.
[0015] In combination with the third implementation method of the second aspect, the gas stove also includes: a light-transmitting panel; the ranging sensor is a laser ranging sensor; the laser ranging sensor is arranged on the side of the light-transmitting panel away from the object, and the angle between the optical path of the laser emitted by the ranging sensor and the light-transmitting panel is less than 90°; after reading the distance measured by the ranging sensor, the control method also includes: when the distance measured by the ranging sensor is below a second preset threshold, outputting a prompt message; the second preset threshold is below the lower limit of the preset distance interval; the prompt message is used to prompt the user to move the obstruction or clean the stains on the light-transmitting panel.
[0016] In the third aspect, an embodiment of the present application provides a controller, comprising: one or more processors; one or more memories; wherein the one or more memories are used to store computer program codes, the computer program codes include computer instructions, and when the one or more processors execute the computer instructions, the controller executes any one of the control methods provided in the second aspect and possible implementation methods.
[0017] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, which includes computer instructions. When the computer instructions are controlled on a computer, the computer executes any one of the control methods provided in the second aspect and possible implementation methods.
[0018] In the fifth aspect, an embodiment of the present invention provides a computer program product, which can be directly loaded into a memory and contains software code. After being loaded and executed by a computer, the computer program product can implement any control method provided in the second aspect and possible implementation methods as provided in the second aspect and possible implementation methods.
[0019] It should be noted that the above computer instructions may be stored in whole or in part on a computer-readable storage medium, wherein the computer-readable storage medium may be packaged together with the processor of the controller, or may be packaged separately from the processor of the controller, which is not limited in this application.
[0020] The beneficial effects described in the second to fifth aspects of the present application can be referred to the beneficial effect analysis of the first aspect and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.
[0022] Figure 1 A schematic diagram of the structure of a cookware provided in an embodiment of the present application;
[0023] Figure 2 A schematic diagram of the structure of a gas stove provided in an embodiment of the present application;
[0024] Figure 3 A schematic diagram of the structure of a firepower adjustment device provided in an embodiment of the present application;
[0025] Figure 4 A hardware configuration diagram of a gas stove provided in an embodiment of the present application;
[0026] Figure 5 A schematic diagram of the structure of a laser ranging sensor provided in an embodiment of the present application;
[0027] Figure 6 A control flow chart of a gas stove controller provided in an embodiment of the present application Figure 1 ;
[0028] Figure 7 A control flow chart of a gas stove controller provided in an embodiment of the present application Figure 2 ;
[0029] Figure 8 A control flow chart of a gas stove controller provided in an embodiment of the present application Figure 3 ;
[0030] Fig. 9 A schematic diagram of the installation position of a distance measuring sensor provided in an embodiment of the present application Figure 1 ;
[0031] Fig.10 A control flow chart of a gas stove controller provided in an embodiment of the present application Figure 4 ;
[0032] Fig.11 A schematic diagram of the installation position of a distance measuring sensor provided in an embodiment of the present application Figure 2 ;
[0033] Fig.12 A general control flow chart of a gas stove controller provided in an embodiment of the present application;
[0034] Fig.13 A method flow of a gas stove control method provided in an embodiment of the present application Figure 1 ;
[0035] Fig.14 A method flow of a gas stove control method provided in an embodiment of the present application Figure 2 ;
[0036] Fig.15 A method flow of a gas stove control method provided in an embodiment of the present application Figure 3 ;
[0037] Fig.16 A method flow of a gas stove control method provided in an embodiment of the present application Figure 4 ;
[0038] Fig.17 A schematic diagram of the hardware architecture of a gas stove control device provided in an embodiment of the present application;
[0039] Fig.18 A schematic diagram of the hardware architecture of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0041] It should be noted that the terms "first" and "second" used in the embodiments of the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.
[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, when describing a pipeline, the "connected" and "connection" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.
[0043] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.
[0044] It should be understood that the gas stove in the embodiment of the present application refers to a kitchen appliance that uses gas fuels such as liquefied petroleum gas (liquid), artificial coal gas, and natural gas for direct fire heating. The gas stove is also called a gas stove, a stove plate, a stove top, and a gas stove. It is a widely used kitchen appliance. Gas stoves can be divided into single stoves, double stoves, single-burner stoves, multi-burner stoves, desktop stoves, and built-in stoves according to their own structure. The embodiment of the present application does not impose any restrictions on this.
[0045] Figure 1 The structure diagram of a cookware 11 provided in an embodiment of the present application is shown in FIG. The cookware 11 comprises a cookware body 101 and a handle 102 .
[0046] In some embodiments, the pot body 101 is used to hold food and perform various cooking operations such as cooking, boiling, frying, and deep-frying on the food, transferring external heat to the food in the pot to make the food mature.
[0047] Exemplarily, the pot 11 can be a wok. As a cooking tool, a wok is a type of pot. The pot is characterized by a large top opening and a round bottom. The wok is made of iron, aluminum, stainless steel, and the like.
[0048] In some embodiments, the pot body 101 is a double-layer structure with an inner layer.
[0049] In some embodiments, the handle 102 is connected to the top of the pot body 101. Since the temperature of the pot is extremely high, direct contact with the hands may cause burns. Therefore, the handle avoids high temperature burns, provides a fulcrum, and is also helpful for users to perform operations such as tossing and frying the pot.
[0050] See also Figure 2 , Figure 2 Schematic diagram of the structure of a gas stove 21 provided in an embodiment of the present application. Figure 2 As shown, the gas stove 21 includes: a panel 201 , a burner head 202 , and a fire power adjustment device 203 .
[0051] In some embodiments, panel 201 is used to prevent dust and liquid overflowing from pots during cooking from entering the gas stove, keeping the gas stove and the kitchen clean and hygienic. On the other hand, it can also provide heat insulation to prevent damage to electrical components caused by high temperature inside the stove body.
[0052] In some embodiments, the burner head 202 is disposed on the panel 201, and includes at least one fire channel. The fire power of the corresponding fire channel has three rings of fire power, namely no fire, low fire and high fire.
[0053] It should be understood that when the gas stove is working, the gas enters the stove from the air inlet pipe, enters the burner after being regulated by the controller, and is mixed with a portion of air. These mixed gases are ejected from the fire duct of the burner and ignited by the ignition device to form flames. These flames are used to heat the pots placed on the pot support.
[0054] In some embodiments, the fire power regulating device 203 is disposed on the panel 201 to regulate the amount of energy released by fuel combustion, thereby controlling the heating fire power of the burner.
[0055] As a feasible implementation method, Figure 3 As shown, the fire power regulating device 203 may include an on-off valve 2031 and at least one proportional valve 2032 .
[0056] The on-off valve 2031 is used to control the burner head 202 to be in an on state or an off state; the proportional valve 2032 is used to control the fire power of the corresponding fire and gas channel.
[0057] Among them, the opening degree of at least one proportional valve includes closed, half-open and fully open, and the corresponding fire power of the fire and gas channel is no fire, low fire and high fire. At least one fire and gas channel corresponds to at least one proportional valve.
[0058] Exemplarily, the proportional valve 2032 includes: a first proportional valve 20321 for controlling the fire power of the inner ring fire air duct; and a second proportional valve 20322 for controlling the fire power of the outer ring fire air duct.
[0059] Exemplarily, the burner head 202 may include three fire gas ducts, namely an inner ring fire gas duct, a middle ring fire gas duct and an outer ring fire gas duct. Correspondingly, the fire power regulating device 203 may include an on-off valve 2031 and three proportional valves, and the first proportional valve, the second proportional valve and the third proportional valve correspond to the inner ring fire gas duct, the middle ring fire gas duct and the outer ring fire gas duct, respectively.
[0060] Optionally, the gas stove may also be provided with a manual knob linked to the fire power adjustment device 203, and the user may adjust the heating fire power of the gas stove by rotating the manual knob.
[0061] like Figure 4 , which is a hardware configuration diagram of a gas stove 21 provided in an embodiment of the present application. The gas stove 21 may further include: a controller 204 , a communicator 205 , a human-computer interaction device 206 , and a display 207 .
[0062] In some embodiments, the controller 204 is used to generate an operation control signal according to the instruction operation code and the timing signal to instruct the gas stove to execute the control instruction.
[0063] In some embodiments, the communicator 205 is a component for communicating with an external device or an external server according to various communication protocol types. For example, the communicator may include at least one of a Wi-Fi chip, a Bluetooth communication protocol chip, a wired Ethernet communication protocol chip, other network communication protocol chips or a near field communication protocol chip, and an infrared receiver.
[0064] Optionally, the communicator 205 can establish a communication connection with the user terminal, such as establishing a connection with the user's mobile phone or tablet APP, and send the temperature information of the pot, the power information of the pot, the liquid level information of the liquid in the pot, and the dry burning warning prompt information to the user through the communicator 205. In this way, the user can remotely monitor the situation in the pot. Similarly, the communicator 205 can also receive instructions from the user terminal, and then adjust the firepower. In this way, the user can remotely operate the gas stove, making the cooking process easier and safer.
[0065] In some embodiments, the human-computer interaction device 206 is used to implement interaction between the user and the gas stove. The human-computer interaction device may include one or more of a physical button or a touch display panel. For example, the user can select the heating power of the gas stove through the human-computer interaction device, or select a cooking mode through the human-computer interaction device.
[0066] In some embodiments, the display 207 is disposed on the surface of the panel 201 and faces the user. The display 207 may be a liquid crystal display or an organic light-emitting diode (OLED) display. The specific type, size, and resolution of the display are not limited. The display 207 may also be used to display the control panel of the gas stove.
[0067] During the cooking process, users sometimes take the pot away from the gas stove. Sometimes it is inconvenient to reduce or turn off the fire of the gas stove immediately. Sometimes they even take the pot away for a long time to clean it. They also forget to turn off the gas stove. This leads to certain safety hazards, waste of gas and other problems. It is not user-friendly and the user experience is not ideal.
[0068] Based on the above technical problems, the embodiment of the present application provides a gas stove and a control method thereof, wherein the gas stove further includes a distance measuring sensor for measuring the distance between the distance measuring sensor and an object (such as a pot) placed on the gas stove. The gas stove can determine whether the user has taken the pot away from the gas stove during use by the distance measured by the distance measuring sensor, thereby controlling the gas stove to adjust the firepower of the burner accordingly, without the need for the user to manually adjust the firepower of the gas stove, and also avoiding the waste of gas.
[0069] As a feasible implementation method, the distance measuring sensor can be a laser distance measuring sensor, see Figure 5 , Figure 5 A schematic diagram of the structure of a laser ranging sensor provided in an embodiment of the present application is shown in FIG. Figure 5 As shown, the laser ranging sensor 208 includes: a laser ranging sensor body 51 , a transmitter 52 and a receiver 53 .
[0070] It should be understood that the working principle of the laser distance sensor 208 is as follows: the laser pulse is first emitted by the transmitter 52 (laser diode), and the laser is scattered in all directions after reflection. Part of the scattered light returns to the receiver 53 of the laser distance sensor, and is received by the optical system and imaged onto the avalanche photodiode. The avalanche photodiode is an optical sensor with an internal amplification function, so it can detect extremely weak light signals. The distance can be measured by recording and processing the time from the light pulse being emitted to the return being received.
[0071] That is to say, the transmitter 52 is used to emit laser, and the laser is irradiated onto an object (such as a pot). After being reflected by the object, part of the scattered light returns to the receiver 53, and then the distance from the laser ranging sensor to the object can be determined based on the emission time and reception time of the laser.
[0072] As a feasible implementation method, the laser ranging sensor can determine the distance by formula (1):
[0073] L= c*t0 / 2 Formula (1)
[0074] Where c is the speed of light, and t0 is the difference between the sending time and the receiving time.
[0075] See also Figure 6 In the gas stove provided in the embodiment of the present application, when the burner is being heated, that is, when the user is using the gas stove for cooking, the controller is configured to execute S601-S602:
[0076] S601, reading the distance measured by the distance measuring sensor.
[0077] As a feasible implementation method, S601 may be specifically implemented as follows: reading the distance measured by the distance measuring sensor at every preset time interval.
[0078] For example, the preset time may be 3 seconds. When the user is using the gas stove to cook, the distance measured by the distance measuring sensor is read every 3 seconds.
[0079] S602: When the distance measured by the distance measuring sensor is above a first preset threshold, or when the distance measuring sensor does not measure the distance, lower the heating power of the burner.
[0080] It should be understood that the first preset threshold is pre-set and can be set according to needs in the actual application process, and the embodiment of the present application does not impose any limitation on this. For example, as a feasible implementation method, the first preset threshold is 1 meter, and when the distance measured by the ranging sensor reaches more than 1 meter (such as 1.2 meters), or the ranging sensor does not measure the distance, the heating power of the burner is lowered.
[0081] Since users usually place pots on the gas stove during normal cooking, the distance measured by the distance sensor is the distance from the distance sensor to the pot. If the user moves the pot away during cooking, such as pouring out vegetables or washing the pot, the laser emitted by the distance sensor will not irradiate the pot, that is, the distance from the distance sensor to the pot cannot be detected.
[0082] In some embodiments, the laser emitted by the distance measuring sensor may irradiate other objects in the kitchen (such as the range hood above the gas stove), and then be reflected by other objects and return to the receiver of the distance measuring sensor. That is to say, the distance measured by the distance measuring sensor may be the distance from the distance measuring sensor to other objects. In this case, the distance measured by the distance measuring sensor will be larger. Therefore, when the distance measured by the distance measuring sensor is above the first preset threshold, it is determined that the user has moved the pot away, and it is necessary to control the fire power adjustment device to lower the heating power of the stove head.
[0083] In other embodiments, the laser emitted by the distance sensor irradiates other objects in the kitchen, and after being reflected by other objects, it cannot return to the receiver of the distance sensor, that is, the distance sensor cannot measure the distance. At this time, it is also determined that the user has moved the pot away, and the heating power of the stove head needs to be lowered.
[0084] When the user lights the ignition and starts cooking, if the distance measured by the distance measuring sensor is above the first preset threshold, or if the distance measuring sensor does not measure the distance, it is determined that there is no pot on the gas stove at this time, and the user is removing the pot to pour food or wash it, and the heating power of the burner is lowered. This can avoid energy waste, reduce safety hazards, and improve user experience.
[0085] It should be understood that as a feasible implementation method, the controller can reduce the heating power of the burner by controlling the power regulating device. For example, the proportional valve of the power regulating device is controlled to reduce the opening, so that the gas in the fire gas channel of the burner is reduced, thereby reducing the heating power of the burner.
[0086] In some embodiments, the user may finish cooking after removing the pot to pour the food or clean it, but forget to turn off the fire. Or the user may clean the pot for a long time while the gas stove is still burning gas, which not only wastes gas energy, but also has the risk of gas leakage, posing a great safety hazard.
[0087] As a possible implementation, see Figure 7 , the gas stove provided in the embodiment of the present application, after lowering the heating power of the burner, the controller is further configured to execute S701-S703:
[0088] S701. Count duration.
[0089] The duration includes: the time during which the distance measured by the distance measuring sensor remains above the first preset threshold, and the time during which the distance measuring sensor does not measure the distance.
[0090] The duration is counted, that is, the time when there is no pot on the gas stove, that is, the time when the user moves the pot away from the gas stove after starting cooking.
[0091] S702: Whether the duration is longer than a preset time.
[0092] If the duration is longer than the preset time, execute S703.
[0093] S703, control the furnace head to stop heating.
[0094] When the duration reaches longer than the preset time, that is, when the user has removed the pot from the gas stove for longer than the preset time, the burner is controlled to stop heating to prevent the burner from burning all the time and causing energy waste. At the same time, it reduces safety hazards and improves the user experience.
[0095] In some embodiments, the gas stove provided in the present application lowers the heating power of the burner after the user removes the pot. However, after the user removes the pot and washes it, he may need to cook the next dish, and a lower heating power is usually not conducive to cooking. The user needs to manually adjust the heating power.
[0096] As a possible implementation, see Figure 8 , the gas stove provided in the embodiment of the present application, when the duration does not reach the preset time, the controller is further configured to execute S704-S705:
[0097] S704: Determine whether the distance measured by the distance measuring sensor is within a preset distance range.
[0098] If the distance measured by the distance measuring sensor is within the preset distance range, execute S705.
[0099] It should be understood that the preset distance interval is pre-set, and the upper limit of the preset distance interval is below the first preset distance. In the actual application process, it can be set according to the needs, and the embodiment of the present application does not impose any restrictions on this. For example, as a feasible implementation method, the preset distance interval is [0.2m, 0.5m]. When the duration reaches less than the preset time, that is, when the duration does not reach the preset time, if the distance measured by the ranging sensor is within [0.2m, 0.5m], the heating power of the burner is adjusted to the target heating power.
[0100] It should be understood that the preset distance interval is used to characterize the distance interval from the distance measuring sensor to the cooker. If the distance measured by the distance measuring sensor is within the preset distance interval, it indicates that there is a cooker on the gas stove, that is, the user has not moved the cooker away, and the user is using the gas stove to heat the cooker.
[0101] In some embodiments, since the preset distance interval is used to represent the distance interval from the distance measuring sensor to the cookware, the preset distance interval can be determined according to the caliber of the cookware.
[0102] As a feasible implementation method, you can take the largest household cooker on the market, place it on the gas stove, record the distance measured by the laser sensor at this time as X0, and then determine the radius of the cooker's diameter as r, let X1 = X0 + r, then the preset distance interval is [X0, X1].
[0103] S705, adjusting the heating power of the burner to the target heating power.
[0104] The target heating power is the heating power of the burner before the heating power of the burner is lowered.
[0105] When the duration does not reach the preset time, if the distance measured by the distance measuring sensor is within the preset distance interval, that is, the time when the user moves the pot is within the preset time, the user puts the pot back on the gas stove and adjusts the heating power of the burner to the target heating power. That is, the burner is controlled to heat at the heating power before adjustment to avoid affecting the user's subsequent cooking.
[0106] In some embodiments, the panel 201 can be used to prevent dust and liquid overflowing from the pot during cooking from entering the gas stove, keeping the gas stove and the kitchen clean and hygienic, and on the other hand, it can also insulate heat to prevent damage to electrical components caused by high temperature in the stove body. If the distance measuring sensor is set on the panel, it is necessary to open a hole in the panel. After the hole is opened, the liquid overflowing from the pot can easily enter the gas stove, and it is not convenient for users to clean.
[0107] As a feasible implementation method, the panel of the gas stove can be a light-transmitting panel, such as tempered glass or microcrystalline glass, etc. The laser distance sensor 208 can be arranged on the side of the light-transmitting panel away from the utensils on the gas stove, so that the light path of the laser emitted by the laser distance sensor 208 can pass through the light-transmitting panel and irradiate the utensils placed on the gas stove.
[0108] It should be understood that since the light-transmitting panel has a reflective effect, in order to prevent the light path of the laser emitted by the ranging sensor from being directly reflected back by the light-transmitting panel, such as Fig. 9 As shown, the angle α between the optical path of the laser emitted by the laser ranging sensor 208 (shown by the dotted line in the figure) and the panel 201 is less than 90°.
[0109] The panel of the gas stove is a light-transmitting panel. The distance sensor can be set below the light-transmitting panel to avoid opening holes in the panel. This can prevent the liquid overflowing from the pot from entering the gas stove and facilitate users to clean the panel. The angle between the optical path of the laser emitted by the distance sensor and the light-transmitting panel is less than 90° to avoid the optical path of the laser emitted by the distance sensor being reflected back by the light-transmitting panel, resulting in detection failure.
[0110] In some embodiments, when the user is cooking, foreign objects may inevitably fall from the pot onto the panel, such as scattered dishes or liquid overflowing from the pot. In order to avoid opening a hole in the panel, the distance measuring sensor is set under the light-transmitting panel. The scattered dishes or liquid overflowing from the pot may fall onto the light-transmitting panel, which may block the laser emitted by the distance measuring sensor, causing the distance measuring sensor to be unable to measure the distance to the pot, affecting the subsequent adjustment of the heating power.
[0111] As a possible implementation, see Fig.10 After reading the distance measured by the ranging sensor, the controller is further configured to perform the following steps:
[0112] S1001. When the distance measured by the distance measuring sensor is below a second preset threshold, output a prompt message.
[0113] It should be understood that the second preset threshold is pre-set, and the second preset threshold is slightly lower than the lower limit of the preset distance interval. In the actual application process, it can be set according to the needs, and the embodiment of the present application does not impose any restrictions on this. For example, as a feasible implementation method, the second preset threshold can be 0.1m, and when the distance measured by the ranging sensor is below 0.1m, a prompt message is output.
[0114] As a feasible implementation method, the distance from the light-transmitting panel to the ranging sensor can be measured as M, and the second preset threshold value L0=M+α(X0-M), wherein α is a coefficient greater than zero and less than 1, and the coefficient is flexibly adjusted according to the size of the gas stove and the installation position of the laser sensor; X0 is the distance from the ranging sensor to the pot when the pot is placed on the gas stove.
[0115] The prompt information is used to prompt the user to move the obstruction or clean the stains on the light-transmitting panel.
[0116] When the distance measured by the ranging sensor is less than the second preset threshold, it indicates that the laser emitted by the ranging sensor is blocked by foreign objects on the light-transmitting panel. The user needs to move the blocking object or clean the stains on the light-transmitting panel to avoid affecting the measurement of the ranging sensor.
[0117] It should be understood that the embodiments of the present application do not specifically limit the output form of the prompt information. As a feasible implementation method, the gas stove may include a voice device, and the prompt information may be voice information. When the distance measured by the ranging sensor is less than the second preset threshold, the voice device outputs voice information to prompt the user to move the obstruction or clean the stains on the light-transmitting panel.
[0118] As another implementation method, the gas stove can establish a communication connection with the user terminal through a communicator. The prompt information can be a text message or a voice message. The gas stove sends the prompt information to the user terminal to prompt the user to move the obstruction or clean the stains on the light-transmitting panel.
[0119] In some embodiments, when the burner heats the utensils placed on the gas stove, the high temperature generated will continuously provide heat to the surroundings. If the distance measuring sensor is too close to the burner, it will inevitably be affected by the high temperature, causing damage to the distance measuring sensor.
[0120] As a feasible implementation method, the distance between the distance measuring sensor and the furnace head is above a preset distance.
[0121] It should be understood that the preset distance is pre-set and can be set according to needs in the actual application process, and the embodiment of the present application does not impose any limitation on this. For example, as a feasible implementation method, the preset distance can be 0.2m, and the distance between the distance measuring sensor and the furnace head is more than 0.2m.
[0122] See also Fig.11 , Fig.11 The figure shows a schematic diagram of the installation position of the distance measuring sensor. The laser distance measuring sensor 208 is arranged at a position far away from the furnace head 202 to avoid damage to the laser distance measuring sensor 208 caused by the heat emitted when the furnace head 202 is heated.
[0123] It should be noted that in order to avoid the influence of flame on the detection of the distance sensor when the furnace head is heated, the wavelength of the laser emitted by the transmitter of the distance sensor is about 940nm, and the center frequency of the passband of the receiver lens is about 940nm, that is, the wavelength of the laser that the receiver can receive is about 940nm. This can avoid the influence of natural light and flame on the distance sensor and avoid the interference of natural light and flame.
[0124] In some embodiments, see Fig.12 , the gas stove provided in the embodiment of the present application, after starting to ignite for cooking, the control process of the controller includes the following steps:
[0125] S1201, read the distance measured by the distance measuring sensor.
[0126] S1202: Determine whether there is a pot on the gas stove.
[0127] According to the distance measured by the ranging sensor, it is judged whether there is a pot on the gas stove. If the distance measured by the ranging sensor is above the first preset threshold, or the ranging sensor does not measure the distance, it indicates that there is no pot on the gas stove, and S1213 is executed; if the distance measured by the ranging sensor is less than or equal to the first preset threshold, it cannot be judged whether there is a pot on the gas stove, and further judgment is required, and S1223 is executed.
[0128] S1213. Reduce the heating power of the burner.
[0129] S1214. Count the duration.
[0130] The duration is the time when the distance measured by the distance measuring sensor is above a first preset threshold, or the time when the distance measuring sensor does not measure the distance, that is, the time when there is no pot on the gas stove.
[0131] S1215: Determine whether the duration is longer than a preset time.
[0132] If the duration is longer than the preset time, that is, the time when the user has removed the cookware from the gas stove is longer than the preset time, execute S1216; if the duration is less than the preset time, return to execute S1201.
[0133] S1216, control the furnace head to stop heating.
[0134] When the duration reaches longer than the preset time, that is, when the user has removed the pot from the gas stove for longer than the preset time, the burner is controlled to stop heating to prevent the burner from burning all the time and causing energy waste. At the same time, it reduces safety hazards and improves the user experience.
[0135] S1223: Determine whether the distance measured by the distance measuring sensor is less than a second preset threshold.
[0136] If the distance measured by the ranging sensor is less than the second preset threshold, it indicates that a foreign object has blocked the laser emitted by the ranging sensor, causing the ranging sensor to be unable to measure the distance to the pot normally, and execute S1224; if the distance measured by the ranging sensor is greater than or equal to the second preset threshold, execute S1225.
[0137] S1224. Output prompt information.
[0138] The prompt information is used to prompt the user to move the obstruction or clean the stains on the light-transmitting panel.
[0139] When the distance measured by the ranging sensor is less than the second preset threshold, it indicates that the laser emitted by the ranging sensor is blocked by foreign objects on the light-transmitting panel. The user needs to move the blocking object or clean the stains on the light-transmitting panel to avoid affecting the measurement of the ranging sensor.
[0140] S1225: Determine whether the distance measured by the distance measuring sensor is within a preset distance range.
[0141] If the distance measured by the ranging sensor is within the preset distance interval, it indicates that there is a pot on the gas stove, that is, the user has not moved the pot away or the user has placed the pot back on the gas stove, and the user is using the gas stove to heat the pot, and execute S1226; if the distance measured by the ranging sensor is outside the preset distance interval, return to execute S1201.
[0142] S1226, adjusting the heating power of the burner to the target heating power.
[0143] The distance measured by the distance measuring sensor is within the preset distance range, indicating that there is a pot on the gas stove, that is, the user has not moved the pot away or the user has placed the pot back on the gas stove, and the user is using the gas stove to heat the pot. Adjust the heating power of the burner to the target heating power, that is, control the burner to heat at the heating power before adjustment to avoid affecting the user's subsequent cooking.
[0144] An embodiment of the present application also provides a control method for a gas stove, wherein the gas stove includes: a panel located on the upper part of the gas stove; a burner head used to heat objects placed on the gas stove; a firepower adjustment device used to adjust the heating firepower of the burner head; a distance measuring sensor used to measure the distance between the distance measuring sensor and the object placed on the gas stove; and a controller connected to the distance measuring sensor and the firepower adjustment device.
[0145] See also Fig.13 , the control method comprises the following steps:
[0146] S1301. When the furnace head is being heated, read the distance measured by the distance measuring sensor.
[0147] S1302: When the distance measured by the distance measuring sensor is above a first preset threshold, or when the distance measuring sensor does not measure the distance, lower the heating power of the burner.
[0148] Since users usually place pots on the gas stove during normal cooking, the distance measured by the distance sensor is the distance from the distance sensor to the pot. If the user moves the pot away during cooking, such as pouring out vegetables or washing the pot, the laser emitted by the distance sensor will not irradiate the pot, that is, the distance from the distance sensor to the pot cannot be detected.
[0149] In some embodiments, the laser emitted by the distance measuring sensor may irradiate other objects in the kitchen (such as the range hood above the gas stove), and then be reflected by other objects and return to the receiver of the distance measuring sensor. That is to say, the distance measured by the distance measuring sensor may be the distance from the distance measuring sensor to other objects. In this case, the distance measured by the distance measuring sensor will be larger. Therefore, when the distance measured by the distance measuring sensor is above the first preset threshold, it is determined that the user has moved the pot away, and it is necessary to control the fire power adjustment device to lower the heating power of the stove head.
[0150] In other embodiments, the laser emitted by the distance sensor irradiates other objects in the kitchen, and after being reflected by other objects, it cannot return to the receiver of the distance sensor, that is, the distance sensor cannot measure the distance. At this time, it is also determined that the user has moved the pot away, and the heating power of the stove head needs to be lowered.
[0151] When the user lights the ignition and starts cooking, if the distance measured by the distance measuring sensor is above the first preset threshold, or if the distance measuring sensor does not measure the distance, it is determined that there is no pot on the gas stove at this time, and the user is removing the pot to pour food or wash it, and the heating power of the burner is lowered. This can avoid energy waste, reduce safety hazards, and improve user experience.
[0152] It should be understood that as a feasible implementation method, the controller can reduce the heating power of the burner by controlling the power regulating device. For example, the proportional valve of the power regulating device is controlled to reduce the opening, so that the gas in the fire gas channel of the burner is reduced, thereby reducing the heating power of the burner.
[0153] The control method of the gas stove provided in the embodiment of the present application can determine that the user has taken the cookware away from the gas stove during use by reading the distance measured by the distance measuring sensor when the distance measured by the distance measuring sensor is above a first preset threshold value, or when the distance measured by the distance measuring sensor does not measure the distance, thereby lowering the heating power of the burner head. The user does not need to manually adjust the power of the gas stove, and gas waste can also be avoided.
[0154] As a possible implementation, see Fig.14 After lowering the heating power of the burner, the control method further includes:
[0155] S1401. Count the duration.
[0156] The duration includes: the time during which the distance measured by the distance measuring sensor remains above the first preset threshold, and the time during which the distance measuring sensor does not measure the distance.
[0157] S1402: Whether the duration is longer than a preset time.
[0158] If the duration is longer than the preset time, execute S1403.
[0159] S1403, control the furnace head to stop heating.
[0160] When the duration reaches longer than the preset time, that is, when the user has removed the pot from the gas stove for longer than the preset time, the burner is controlled to stop heating to prevent the burner from burning all the time and causing energy waste. At the same time, it reduces safety hazards and improves the user experience.
[0161] In some embodiments, the gas stove provided in the present application lowers the heating power of the burner after the user removes the pot. However, after the user removes the pot and washes it, he may need to cook the next dish, and a lower heating power is usually not conducive to cooking. The user needs to manually adjust the heating power.
[0162] As a possible implementation, see Fig.15 , the gas stove provided in the embodiment of the present application, when the duration does not reach the preset time, the controller is further configured to execute S1404-S1405:
[0163] S1404: Determine whether the distance measured by the distance measuring sensor is within a preset distance range.
[0164] If the distance measured by the distance measuring sensor is within the preset distance range, execute S1405.
[0165] S1405, adjusting the heating power of the burner to the target heating power.
[0166] The target heating power is the heating power of the burner before the heating power of the burner is lowered.
[0167] When the duration does not reach the preset time, if the distance measured by the distance measuring sensor is within the preset distance interval, that is, the time when the user moves the pot is within the preset time, the user puts the pot back on the gas stove and adjusts the heating power of the burner to the target heating power. That is, the burner is controlled to heat at the heating power before adjustment to avoid affecting the user's subsequent cooking.
[0168] In some embodiments, the panel 201 can be used to prevent dust and liquid overflowing from the pot during cooking from entering the gas stove, keeping the gas stove and the kitchen clean and hygienic, and on the other hand, it can also insulate heat to prevent damage to electrical components caused by high temperature in the stove body. If the distance measuring sensor is set on the panel, it is necessary to open a hole in the panel. After the hole is opened, the liquid overflowing from the pot can easily enter the gas stove, and it is not convenient for users to clean.
[0169] As a feasible implementation method, the panel of the gas stove is a light-transmitting panel; the distance measuring sensor is located below the light-transmitting panel, and the angle between the optical path of the laser emitted by the distance measuring sensor and the light-transmitting panel is less than 90°.
[0170] As a possible implementation, see Fig.16 After reading the distance measured by the distance measuring sensor, the control method further includes:
[0171] S1601: When the distance measured by the distance measuring sensor is below a second preset threshold, output a prompt message.
[0172] The second preset threshold is below the lower limit of the preset distance interval; the prompt information is used to prompt the user to move the obstruction or clean the stains on the light-transmitting panel.
[0173] As a feasible implementation method, the distance between the distance measuring sensor and the furnace head is greater than a preset distance.
[0174] The present application also provides a control device for a gas stove. Fig.17 The control device 170 includes: a reading module 171, which is used to read the distance measured by the distance measuring sensor; a control module 172, which is used to lower the heating power of the burner when the distance measured by the distance measuring sensor is above a first preset threshold or the distance is not measured by the distance measuring sensor.
[0175] The present application also provides an electronic device. Fig.18 The electronic device 180 includes: one or more processors 1801; one or more memories 1802, wherein the one or more memories 1802 are used to store computer program codes, and the computer program codes include computer instructions; when the one or more processors 1801 execute the computer instructions, the electronic device 180 executes the various steps of the method shown in the above method embodiment.
[0176] An embodiment of the present application also provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes each step performed by the electronic device in the method flow shown in the above method embodiment.
[0177] An embodiment of the present application also provides a computer program product, which includes computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes each step executed by the electronic device in the method flow shown in the above method embodiment.
[0178] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer execution instruction is loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instruction can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by the computer or a data storage device such as a server, data center, etc. that contains one or more servers that can be integrated with the medium. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
[0179] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A gas stove, characterized in that: include: A burner head, used for heating utensils placed on the gas stove; A distance measuring sensor, used to measure the distance between the distance measuring sensor and an object placed on the gas stove; A controller connected to the distance measuring sensor; The controller is configured to: When the furnace head is being heated, reading the distance measured by the distance measuring sensor; When the distance measured by the distance measuring sensor is above a first preset threshold, or when the distance measuring sensor does not measure the distance, the heating power of the burner is lowered.
2. The gas stove according to claim 1, characterized in that: After lowering the heating power of the burner, the controller is further configured to: Counting duration, where the duration includes: the time during which the distance measured by the distance measuring sensor remains above the first preset threshold, and the time during which the distance measuring sensor does not measure the distance; When the duration reaches a preset time or longer, the burner head is controlled to stop heating.
3. The gas stove according to claim 2, characterized in that: After the statistical duration, the controller is further configured to: If the distance measured by the distance measuring sensor is within a preset distance interval, adjusting the heating power of the burner to a target heating power; the upper limit value of the preset distance interval is below the first preset distance; The target heating power is the heating power of the burner before the heating power of the burner is lowered.
4. The gas stove according to any one of claims 1 to 3, characterized in that: The gas stove further comprises: a light-transmitting panel; the distance measuring sensor is a laser distance measuring sensor; The laser distance measuring sensor is arranged on a side of the light-transmitting panel away from the object, and the angle between the optical path of the laser emitted by the distance measuring sensor and the light-transmitting panel is less than 90°.
5. The gas stove according to claim 4, characterized in that: After reading the distance measured by the distance measuring sensor, The controller is also configured to: When the distance measured by the distance measuring sensor is below a second preset threshold, a prompt message is output; the second preset threshold is below a lower limit of the preset distance interval; the prompt message is used to prompt the user to move the obstruction or clean the stains on the light-transmitting panel.
6. The gas stove according to claim 5, characterized in that: The distance between the distance measuring sensor and the furnace head is greater than a preset distance.
7. A method for controlling a gas stove, characterized in that: The gas stove comprises: A burner head, used for heating an object placed on the gas stove; a distance sensor, used for measuring the distance between the distance sensor and the object placed on the gas stove; a controller, connected to the distance sensor and the fire power adjustment device; The control method comprises: When the furnace head is being heated, reading the distance measured by the distance measuring sensor; When the distance measured by the distance measuring sensor is above a first preset threshold, or when the distance measuring sensor does not measure the distance, the heating power of the burner is lowered.
8. The control method according to claim 7, characterized in that: After lowering the heating power of the burner, the control method further includes: Counting duration, where the duration includes: the time during which the distance measured by the distance measuring sensor remains above the first preset threshold, and the time during which the distance measuring sensor does not measure the distance; When the duration reaches a preset time or longer, the burner head is controlled to stop heating.
9. The control method according to claim 8, characterized in that: After the duration is counted, the control method further includes: If the distance measured by the distance measuring sensor is within a preset distance interval, the heating power of the burner head is adjusted to a target heating power; the upper limit value of the preset distance interval is below the first preset distance; the target heating power is the heating power of the burner head before the heating power of the burner head is lowered.
10. The control method according to any one of claims 7 to 9, characterized in that: The gas stove further comprises: a light-transmitting panel; the distance measuring sensor is a laser distance measuring sensor; The laser distance measuring sensor is arranged on a side of the light-transmitting panel away from the object, and the angle between the optical path of the laser emitted by the distance measuring sensor and the light-transmitting panel is less than 90°; After reading the distance measured by the distance measuring sensor, The control method further comprises: When the distance measured by the distance measuring sensor is below a second preset threshold, a prompt message is output; the second preset threshold is below a lower limit of the preset distance interval; the prompt message is used to prompt the user to move the obstruction or clean the stains on the light-transmitting panel.