Cooking utensil positioning method, intelligent extractor hood, computer device and storage medium

Abstract

This application relates to a cooking appliance positioning method, a smart range hood, a computer device, and a storage medium. The cooking appliance positioning method includes: performing infrared thermal imaging on a target area above the cooking appliance to obtain a real-time temperature matrix corresponding to the target area; the real-time temperature matrix includes multiple temperature values, each corresponding to a specific position within the target area; determining the real-time centroid coordinates of the cooking appliance based on the real-time temperature matrix; comparing the real-time centroid coordinates of the cooking appliance with its standard centroid coordinates to determine the centroid offset; and triggering an offset warning for the cooking appliance when the centroid offset exceeds a preset offset threshold. This application solves the problem of inaccurately sensing the positional offset of a cooking appliance, achieving precise sensing of its positional offset.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent household appliances, and in particular to a cooking utensil positioning method, an intelligent extractor hood, a computer device, and a storage medium. BACKGROUND

[0002] In actual cooking, user operations such as stirring and adjusting the cooking utensil can easily cause the cooking utensil to deviate from the standard position. This not only causes problems such as reduced oil fume extraction efficiency and uneven heating, but also can affect cooking safety and user experience. However, current cooking-related devices lack the ability to detect the position deviation of the cooking utensil, and thus cannot accurately perceive the position deviation of the cooking utensil.

[0003] To address the problem of being unable to accurately perceive the position deviation of the cooking utensil in the related art, no effective solutions have been proposed. SUMMARY

[0004] A cooking utensil positioning method, an intelligent extractor hood, a computer device, and a storage medium are provided in the present embodiment to address the problem of being unable to accurately perceive the position deviation of the cooking utensil in the related art.

[0005] In a first aspect, a cooking utensil positioning method is provided in the present embodiment, comprising:

[0006] performing infrared thermal imaging on a target area above the cooking utensil to obtain a real-time temperature matrix corresponding to the target area; the real-time temperature matrix includes a plurality of temperature values, each temperature value corresponding to a respective position in the target area;

[0007] determining real-time centroid coordinates of the cooking utensil based on the real-time temperature matrix;

[0008] comparing the real-time centroid coordinates of the cooking utensil with standard centroid coordinates of the cooking utensil to determine a centroid deviation of the cooking utensil;

[0009] when the centroid deviation is greater than a preset deviation threshold, triggering a deviation prompt for the cooking utensil.

[0010] In some embodiments, the infrared thermal imaging on the target area above the cooking utensil to obtain the real-time temperature matrix corresponding to the target area comprises:

[0011] acquiring signals of the target area above the cooking utensil by using an infrared sensor with a preset pixel array to obtain an output voltage corresponding to each pixel position in the preset pixel array;

[0012] The output voltage corresponding to each pixel position is linearly calibrated based on a preset calibration coefficient to generate a corresponding real-time temperature matrix.

[0013] In some embodiments, determining the real-time centroid coordinate of the cooking appliance based on the real-time temperature matrix comprises:

[0014] determining a sum of each temperature value in the real-time temperature matrix;

[0015] weighting and accumulating each temperature value with a row number of the temperature value in the real-time temperature matrix, and determining a ratio of an accumulated result to the sum of each temperature value as a horizontal centroid coordinate;

[0016] weighting and accumulating each temperature value with a column number of the temperature value in the real-time temperature matrix, and determining a ratio of an accumulated result to the sum of each temperature value as a vertical centroid coordinate;

[0017] combining the horizontal centroid coordinate and the vertical centroid coordinate to obtain the real-time centroid coordinate.

[0018] In some embodiments, after triggering the offset prompt of the cooking appliance, the method further comprises:

[0019] adjusting an opening angle of a guide plate and / or a fan gear of an intelligent range hood associated with the cooking appliance according to the centroid offset of the cooking appliance.

[0020] In some embodiments, the offset prompt is a combination of one or more of a voice prompt, a buzzer prompt, an indicator light flickering prompt, and a display screen text prompt.

[0021] In a second aspect, the present embodiment provides an intelligent range hood, comprising an infrared sensor and a controller.

[0022] The infrared sensor is configured to perform infrared thermal imaging on a target area above a cooking appliance to obtain a real-time temperature matrix corresponding to the target area; the real-time temperature matrix comprises a plurality of temperature values, each of which corresponds to a corresponding position in the target area.

[0023] The controller is configured to determine a real-time centroid coordinate of the cooking appliance based on the real-time temperature matrix.

[0024] The controller is further configured to compare the real-time centroid coordinate of the cooking appliance with a standard centroid coordinate of the cooking appliance to determine a centroid offset of the cooking appliance.

[0025] The controller is also configured to trigger an offset prompt from the cooking appliance when the centroid offset is greater than a preset offset threshold.

[0026] In some embodiments, the infrared sensor is installed at the bottom of the smoke collection hood or the bottom of the smoke baffle of the smart range hood; the field of view of the infrared sensor covers the area where the cooking appliance is placed.

[0027] In some embodiments, the wavelength range of the infrared sensor matches the wavelength characteristics of the thermal radiation signal emitted by the cooking appliance.

[0028] Thirdly, this embodiment provides a computer device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the cooking utensil positioning method described in the first aspect above.

[0029] Fourthly, this embodiment provides a storage medium storing a computer program that, when executed by a processor, implements the cooking utensil positioning method described in the first aspect above.

[0030] Compared with related technologies, the cooking appliance positioning method, intelligent range hood, computer equipment, and storage medium provided in this embodiment obtain a real-time temperature matrix corresponding to the target area by performing infrared thermal imaging on the target area above the cooking appliance. The real-time temperature matrix includes multiple temperature values, each corresponding to a specific position in the target area. Based on the real-time temperature matrix, the real-time centroid coordinates of the cooking appliance are determined. The real-time centroid coordinates of the cooking appliance are compared with the standard centroid coordinates of the cooking appliance to determine the centroid offset. When the centroid offset exceeds a preset offset threshold, an offset prompt is triggered for the cooking appliance, thus solving the problem of inaccurately sensing the positional offset of the cooking appliance and achieving accurate sensing of the positional offset of the cooking appliance.

[0031] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0033] Figure 1 This is a structural block diagram of an intelligent range hood provided in one embodiment of this application;

[0034] Figure 2This is a flowchart of a cooking utensil positioning method provided in an embodiment of this application;

[0035] Figure 3 This is a flowchart of a method for obtaining a real-time temperature matrix according to an embodiment of this application;

[0036] Figure 4 This is a flowchart of a method for calculating real-time centroid coordinates provided in an embodiment of this application;

[0037] Figure 5 This is a schematic flowchart of a cooking utensil positioning method provided in an embodiment of this application.

[0038] In the diagram: 100, Smart Range Hood; 101, Controller; 102, Infrared Sensor; 103, Memory; 104, Fan Drive Module; 105, Deflector Adjustment Module; 106, Light Module; 107, Switch Module; 108, Communication Module. Detailed Implementation

[0039] To better understand the purpose, technical solution, and advantages of this application, the application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0040] Unless otherwise defined, the technical or scientific terms used in this application shall have the general meaning understood by one of ordinary skill in the art to which this application pertains. Words such as “a,” “an,” “an,” “the,” “the,” and “these” used in this application do not indicate quantitative limitation and may be singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or modules (units) is not limited to the listed steps or modules (units) but may include steps or modules (units) not listed, or may include other steps or modules (units) inherent to these processes, methods, products, or devices. Words such as “connected,” “linked,” and “coupled” used in this application are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. “Multiple” used in this application refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can represent: A alone, A and B simultaneously, and B alone. Normally, the character " / " indicates that the objects before and after it are in an "or" relationship. The terms "first," "second," "third," etc., used in this application are merely to distinguish similar objects and do not represent a specific order of objects.

[0041] The method embodiment provided in this example can be executed by the intelligent range hood 100.Figure 1 This is a structural block diagram of the intelligent range hood 100 in this embodiment, as shown below. Figure 1 As shown, the intelligent range hood 100 includes a controller 101, an infrared sensor 102, a memory 103, a fan drive module 104, a baffle adjustment module 105, a light module 106, a switch module 107, and a communication module 108. The controller 101 can be a microprocessor (MCU) or a field-programmable gate array (FPGA) device. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned smart range hood 100. For example, the smart range hood 100 may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown are illustrated.

[0042] Infrared sensor 102 can be installed at the bottom of the smoke collection hood or the bottom of the smoke baffle of the smart range hood 100, usually facing the center of the cooking appliance, to perform infrared thermal imaging of the target area above the cooking appliance to obtain the real-time temperature matrix corresponding to the target area. Specifically, for each cooking appliance, infrared sensor 102 has sufficient pixel coverage, such as using a 16×16 pixel array; the field of view (FOV) of infrared sensor 102 at least covers the placement area of ​​the cooking appliance (including single-burner area, double-burner area, etc.), for example, a FOV of 110° to cover the double-burner area, and the installation position is about 30~60 cm away from the cooking appliance; the wavelength range of infrared sensor 102 matches the wavelength characteristics of the thermal radiation signal emitted by the cooking appliance (e.g., 8~14). The temperature resolution of the infrared sensor 102 meets the requirements for detecting minute changes in the thermal field (e.g., 0.1℃).

[0043] The memory 103 is used to store computer programs, such as the computer program corresponding to the cooking utensil positioning method in this embodiment. The controller 101 executes various functional applications and data processing by running the computer program stored in the memory 103, thereby realizing the above-described method. The memory 103 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory.

[0044] The fan drive module 104 receives control commands from the controller 101 and drives the fan assembly to operate at corresponding speeds, achieving different levels of smoke extraction. The deflector adjustment module 105 receives control commands from the controller 101 and adjusts the opening angle and position of the deflector to optimize the efficiency of oil fume collection. The light module 106 provides lighting support for the cooking area, typically using LED light sources. This module receives control signals from the controller 101 and can turn the lights on and off, as well as adjust their brightness to adapt to different ambient light intensities and cooking needs. The switch module 107, as the core component of human-machine interaction, receives manual operation commands from the user (such as power on / off, speed switching, and light control) and converts these commands into electrical signals for transmission to the controller 101.

[0045] The communication module 108 is used to realize information interaction between the smart range hood 100 and external devices or networks, and supports intelligent functions such as remote control and data uploading. It can support one or more communication protocols such as Wi-Fi, Bluetooth, and ZigBee.

[0046] This embodiment provides a method for positioning cooking utensils. Figure 2 This is a flowchart of the cooking utensil positioning method in this embodiment, such as... Figure 2 As shown, the process includes the following steps:

[0047] Step S210: Perform infrared thermal imaging on the target area above the cooking appliance to obtain a real-time temperature matrix corresponding to the target area; the real-time temperature matrix includes multiple temperature values, each temperature value corresponding to a corresponding position in the target area;

[0048] Step S220: Determine the real-time centroid coordinates of the cooking appliance based on the real-time temperature matrix;

[0049] Step S230: Compare the real-time centroid coordinates of the cooking appliance with the standard centroid coordinates of the cooking appliance to determine the centroid offset of the cooking appliance.

[0050] Step S240: When the centroid offset is greater than a preset offset threshold, trigger the offset prompt of the cooking appliance.

[0051] In this embodiment, the temperature distribution of a target area above the cooking appliance is monitored in real time. The target area is the steam plume formed above the cooking appliance. Specifically, an infrared sensor or infrared camera with a preset pixel array is used to collect signals from the target area above the cooking appliance, obtaining the output voltage corresponding to each pixel position in the preset pixel array. Based on a preset calibration coefficient, the output voltage corresponding to each pixel position is linearized and calibrated to generate a corresponding real-time temperature matrix.

[0052] The system automatically acquires signals at preset time intervals (e.g., 0.5 seconds), outputting a real-time temperature matrix corresponding to the pixel resolution for each acquisition to continuously and dynamically reflect the temperature changes in the target area. This real-time temperature matrix includes multiple temperature values, each corresponding to a specific location within the target area.

[0053] Furthermore, based on the temperature values ​​in the real-time temperature matrix, the real-time centroid coordinates of the cooking appliance are determined. This is achieved by: calculating the sum of all temperature values ​​in the real-time temperature matrix; weighting and summing each temperature value with its row number in the matrix; determining the ratio of the sum to the total as the horizontal centroid coordinate; and weighting and summing each temperature value with its column number in the matrix; determining the ratio of the sum to the total as the vertical centroid coordinate. The horizontal and vertical centroid coordinates are then combined to obtain the real-time centroid coordinates. Alternatively, the temperature values ​​in the real-time temperature matrix can be binarized, setting temperatures greater than or equal to a preset threshold as 1 and temperatures less than the threshold as 0, to obtain the corresponding effective area. This accurately determines the area where the cooking appliance is located, and the geometric centroid is then calculated based on this binary area as the real-time centroid coordinates. In practice, the centroid coordinate calculation method can be flexibly selected based on factors such as the type of cooking appliance and the cooking environment.

[0054] Then, the real-time centroid coordinates of the cooking appliance are compared with the standard centroid coordinates of the cooking appliance. The difference between the real-time centroid coordinates and the standard centroid coordinates is calculated as the centroid offset of the cooking appliance, and it is determined whether the centroid offset is greater than the preset offset threshold.

[0055] Specifically, if the centroid offset is less than or equal to a preset offset threshold (e.g., 3 pixels), the appliance is considered to be in a normal position and its current working state is maintained. If the centroid offset is greater than the preset offset threshold, an offset prompt for the cooking appliance is triggered. More specifically, when the centroid offset is greater than the preset offset threshold, the offset direction of the cooking appliance is determined based on the orientation relationship between the real-time centroid coordinates and the standard centroid coordinates. This offset direction information is integrated into the offset prompt to guide the user in adjusting the position of the cooking appliance.

[0056] In actual cooking, user actions such as stirring and adjusting cooking utensils can easily cause them to deviate from their standard positions. This not only leads to reduced fume extraction efficiency and uneven heating, but may also affect cooking safety and the user experience. However, current cooking-related equipment lacks the ability to detect this positional shift, making it impossible to accurately sense when the cooking utensils are misaligned.

[0057] Compared to existing technologies, this application uses infrared thermal imaging to obtain a real-time temperature matrix corresponding to a target area above the cooking appliance. The real-time temperature matrix includes multiple temperature values, each corresponding to a specific location within the target area. Based on this matrix, the real-time centroid coordinates of the cooking appliance are determined. These coordinates are then compared to the appliance's standard centroid coordinates to determine the centroid offset. When the offset exceeds a preset threshold, a prompt indicating the offset of the cooking appliance is triggered. By acquiring temperature distribution information through infrared thermal imaging, calculating the centroid coordinates of the cooking appliance using this information, and performing centroid offset analysis, this application achieves real-time and quantitative detection of the cooking appliance's positional offset. This solves the problem of inaccurately sensing the cooking appliance's positional offset and enables precise detection of this offset.

[0058] In some of these embodiments, such as Figure 3 As shown, step S210, which involves performing infrared thermal imaging on the target area above the cooking appliance to obtain the real-time temperature matrix corresponding to the target area, includes the following steps:

[0059] Step S211: By using an infrared sensor with a preset pixel array, the target area above the cooking appliance is sampled to obtain the output voltage corresponding to each pixel position in the preset pixel array.

[0060] Step S212: Based on preset calibration coefficients, the output voltage corresponding to each pixel position is linearized and calibrated to generate the corresponding real-time temperature matrix.

[0061] In this embodiment, an infrared sensor is installed at the bottom of the smoke collection hood or the bottom of the smoke baffle of the smart range hood, directly facing the center of the cooking appliance. This allows the infrared sensor to monitor the temperature distribution in a target area above the cooking appliance in real time. The target area is the plume of steam formed by boiling inside the cooking appliance.

[0062] Specifically, an infrared sensor with a preset pixel array is used to collect signals from the target area above the cooking appliance, obtaining the output voltage corresponding to each pixel position in the preset pixel array. Based on preset calibration coefficients, the output voltage corresponding to each pixel position is linearized and calibrated to generate a real-time temperature matrix. The specific expression for linearization calibration is as follows:

[0063] (1)

[0064] In equation (1), represents the temperature value in the i-th row and j-th column of the real-time temperature matrix, in °C; k and b are preset calibration coefficients. This represents the output voltage corresponding to the pixel position.

[0065] For example, when the infrared sensor uses a 16×16 pixel array, the corresponding real-time temperature matrix is ​​a 16×16 temperature matrix, the specific expression of which is as follows:

[0066] (2)

[0067] In equation (2), This is a real-time temperature matrix; This represents the temperature value in the i-th row and j-th column of the real-time temperature matrix, in °C.

[0068] This embodiment utilizes an infrared sensor to achieve real-time measurement of the temperature field in the cooking area, providing a reliable data foundation for subsequent analysis of the location of cooking utensils.

[0069] In some of these embodiments, such as Figure 4 As shown, step S220, which determines the real-time centroid coordinates of the cooking appliance based on the real-time temperature matrix, includes the following steps:

[0070] Step S221: Determine the sum of all temperature values ​​in the real-time temperature matrix;

[0071] Step S222: Weighted summation of each temperature value and its row number in the real-time temperature matrix, and determination of the ratio of the summation result to the sum of all temperature values ​​as the horizontal centroid coordinate.

[0072] Step S223: Weighted summation of each temperature value and its column number in the real-time temperature matrix, and the ratio of the summation result to the sum of all temperature values ​​is determined as the vertical centroid coordinate.

[0073] Step S224: Combine the horizontal centroid coordinates and the vertical centroid coordinates to obtain the real-time centroid coordinates.

[0074] Specifically, the sum of all temperature values ​​in the real-time temperature matrix is ​​pre-calculated. Each temperature value is then weighted and summed with its row number in the real-time temperature matrix. The ratio of this sum to the sum of all temperature values ​​is then used as the horizontal centroid coordinate. The specific calculation formula is as follows:

[0075] (3)

[0076] In equation (3), This represents the horizontal centroid coordinates, in pixels. This represents the temperature value in the i-th row and j-th column of the real-time temperature matrix, in °C.

[0077] Simultaneously, each temperature value is weighted and summed with its column number in the real-time temperature matrix. The ratio of this summation to the sum of all temperature values ​​is used as the vertical centroid coordinate. The specific calculation formula is as follows:

[0078] (4)

[0079] In equation (4), Represents the vertical centroid coordinates, in pixels; This represents the temperature value in the i-th row and j-th column of the real-time temperature matrix, in °C.

[0080] Finally, the horizontal and vertical centroid coordinates are combined to obtain the real-time centroid coordinates. , ).

[0081] In this embodiment, the spatial weight of temperature distribution is used to accurately calculate the real-time centroid coordinates of the cooking appliance, thereby providing a stable and reliable spatial reference for subsequent position offset detection.

[0082] In some embodiments, after triggering the offset indicator for the cooking appliance, the following steps are also included:

[0083] Based on the offset of the center of gravity of the cooking appliance, the opening angle of the baffle and / or the fan speed of the smart range hood associated with the cooking appliance are dynamically adjusted.

[0084] Specifically, when the centroid offset exceeds a preset offset threshold, the direction of the cooking appliance's offset is determined based on the orientation relationship between the real-time centroid coordinates and the standard centroid coordinates. If the offset direction of the cooking appliance is away from the smart range hood, the opening angle of the smart range hood's deflector and / or the fan speed is adjusted via a stepper motor. For example, the opening angle of the deflector on the offset side is increased by 20°, while the fan speed is reduced by one level.

[0085] It should be noted that the above control strategy can be implemented using a tiered adjustment mechanism. Based on the amount of center-of-gravity offset of the cooking appliance, the degree of offset is determined. When the offset is slight, only the opening angle of the baffle of the smart range hood is adjusted. When the offset is significant, both the opening angle of the baffle and the fan speed are adjusted simultaneously.

[0086] In this embodiment, the angle of the guide vane and the air volume of the fan are dynamically adjusted based on real-time offset detection, which effectively avoids the problem of oil fume escape caused by the outward deviation of cooking utensils, thereby improving the oil fume capture efficiency.

[0087] In some embodiments, the offset prompt is one or more of the following combinations: voice prompt, beeping prompt, indicator flashing prompt, and display text prompt.

[0088] Specifically, the offset prompt adopts a multimodal interactive design, and can select from voice prompts, beeping prompts, flashing indicator lights, text prompts on the display screen, and other types and combinations thereof, according to the actual needs of the scenario.

[0089] It should be noted that a layered prompting strategy can be further implemented in practical applications. Based on the correspondence between the amount of centroid offset and the degree of centroid offset of the cooking appliance, the current degree of centroid offset of the cooking appliance can be determined in advance. When the current degree of centroid offset is slight, only a flashing indicator light is used to provide a prompt. When the current degree of centroid offset is significant, voice prompts and text descriptions on the display screen are activated simultaneously to clearly guide the user to correct the position of the cooking appliance. The above implementation is only an example; the prompt types, triggering, and combination logic can all be configured or optimized according to user habits and environmental conditions.

[0090] This embodiment ensures that users can receive offset notification information in a timely manner by using multiple prompting methods, either independently or in combination.

[0091] The present embodiment will be described and explained below through specific examples.

[0092] Figure 5 This is a flowchart illustrating the cooking utensil positioning method of this embodiment, as shown below. Figure 5 As shown, the cooking utensil positioning method includes the following steps:

[0093] The temperature distribution of a target area above the cooking appliance is monitored in real time, with the target area being the steam plume formed above the cooking appliance (S501). Specifically, an infrared sensor with a preset pixel array is used to collect signals from the target area above the cooking appliance, obtaining the output voltage corresponding to each pixel position in the preset pixel array. Based on a preset calibration coefficient, the output voltage corresponding to each pixel position is linearized and calibrated to generate a corresponding real-time temperature matrix. This real-time temperature matrix includes multiple temperature values, with each temperature value corresponding to a specific position in the target area (S502).

[0094] Furthermore, the sum of all temperature values ​​in the real-time temperature matrix is ​​calculated, and then each temperature value is weighted and accumulated with its row number in the real-time temperature matrix. The ratio of the accumulated result to the sum of all temperature values ​​is used as the horizontal centroid coordinate. At the same time, each temperature value is weighted and accumulated with its column number in the real-time temperature matrix. The ratio of the accumulated result to the sum of all temperature values ​​is used as the vertical centroid coordinate. Finally, the horizontal and vertical centroid coordinates are combined to obtain the real-time centroid coordinates S503 of the cooking appliance.

[0095] Finally, the real-time centroid coordinates of the cooking appliance are compared with its standard centroid coordinates. The difference between the real-time and standard centroid coordinates is calculated as the centroid offset of the cooking appliance (S504), and it is determined whether this centroid offset is greater than a preset offset threshold (S505). For example, if the centroid offset is less than or equal to 3 pixels, the cooking appliance is determined to be in a normal position and its current working state is maintained (S506). If the centroid offset is greater than 3 pixels, the offset direction of the cooking appliance is determined based on the orientation relationship between the real-time and standard centroid coordinates (S507), and this offset direction information is integrated into the offset prompt to trigger the offset prompt of the cooking appliance, thereby guiding the user to correctly adjust the position of the cooking appliance. Specifically, if the offset direction of the cooking appliance is towards the smart range hood, only the offset prompt is triggered (S508); if the offset direction of the cooking appliance is away from the smart range hood, the opening angle of the guide vane and the fan speed on the offset side are further adjusted via a stepper motor (S509).

[0096] It should be noted that the steps shown in the above process or in the flowchart of the accompanying figures can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0097] This embodiment also provides a computer device, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0098] Optionally, the computer device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0099] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0100] S1, Perform infrared thermal imaging on the target area above the cooking appliance to obtain the real-time temperature matrix corresponding to the target area; The real-time temperature matrix includes multiple temperature values, each temperature value corresponding to a corresponding position in the target area;

[0101] S2, based on the real-time temperature matrix, determines the real-time centroid coordinates of the cooking appliance;

[0102] S3. Compare the real-time centroid coordinates of the cooking appliance with the standard centroid coordinates of the cooking appliance to determine the centroid offset of the cooking appliance.

[0103] S4. When the centroid offset is greater than the preset offset threshold, the offset prompt of the cooking appliance is triggered.

[0104] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated in this embodiment.

[0105] Furthermore, in conjunction with the cooking utensil positioning method provided in the above embodiments, this embodiment can also provide a storage medium for implementation. The storage medium stores a computer program; when executed by a processor, the computer program implements any of the cooking utensil positioning methods described in the above embodiments.

[0106] It should be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. All other embodiments derived by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0107] Obviously, the accompanying drawings are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar situations based on these drawings without any creative effort. Furthermore, it is understood that although the work done in this development process may be complex and lengthy, for those skilled in the art, certain design, manufacturing, or production modifications made based on the technical content disclosed in this application are merely conventional technical means and should not be considered as insufficient disclosure of this application.

[0108] The term "embodiment" in this application refers to a specific feature, structure, or characteristic described in connection with an embodiment that may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily imply the same embodiment, nor does it imply that it is mutually exclusive with or independent of other embodiments. It will be clearly or implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0109] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of patent protection. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A method for positioning a cooking utensil, characterized in that, include: Infrared thermal imaging is performed on the target area above the cooking appliance to obtain the real-time temperature matrix corresponding to the target area. The real-time temperature matrix includes multiple temperature values, each of which corresponds to a specific location in the target area; Based on the real-time temperature matrix, the real-time centroid coordinates of the cooking appliance are determined. The real-time centroid coordinates of the cooking appliance are compared with the standard centroid coordinates of the cooking appliance to determine the centroid offset of the cooking appliance. When the centroid offset exceeds a preset offset threshold, the offset prompt of the cooking appliance is triggered.

2. The cooking utensil positioning method according to claim 1, characterized in that, The step of performing infrared thermal imaging on the target area above the cooking appliance to obtain the real-time temperature matrix corresponding to the target area includes: By using an infrared sensor with a preset pixel array, the target area above the cooking appliance is sampled to obtain the output voltage corresponding to each pixel position in the preset pixel array; Based on preset calibration coefficients, the output voltage corresponding to each pixel position is linearized and calibrated to generate the corresponding real-time temperature matrix.

3. The cooking utensil positioning method according to claim 1, characterized in that, Determining the real-time centroid coordinates of the cooking appliance based on the real-time temperature matrix includes: Determine the sum of all the temperature values ​​in the real-time temperature matrix; Each temperature value is weighted and summed with its row number in the real-time temperature matrix, and the ratio of the summed value to the sum of all the temperature values ​​is determined as the horizontal centroid coordinate. Each temperature value is weighted and summed with its column number in the real-time temperature matrix, and the ratio of the summed value to the sum of all the temperature values ​​is determined as the vertical centroid coordinate. The real-time centroid coordinates are obtained by combining the horizontal centroid coordinates and the vertical centroid coordinates.

4. The cooking utensil positioning method according to claim 1, characterized in that, Following the triggering of the offset indicator for the cooking appliance, the following is also included: Based on the centroid offset of the cooking appliance, the opening angle of the baffle and / or the fan speed of the smart range hood associated with the cooking appliance are dynamically adjusted.

5. The cooking utensil positioning method according to claim 1, characterized in that, The offset prompt is one or more of the following: voice prompt, buzzer prompt, indicator light flashing prompt, and display screen text prompt.

6. A smart range hood, characterized in that, The intelligent range hood includes an infrared sensor and a controller; The infrared sensor is used to perform infrared thermal imaging on a target area above the cooking appliance to obtain a real-time temperature matrix corresponding to the target area; the real-time temperature matrix includes multiple temperature values, each of which corresponds to a specific location in the target area; The controller is used to determine the real-time centroid coordinates of the cooking appliance based on the real-time temperature matrix. The controller is further configured to compare the real-time centroid coordinates of the cooking appliance with the standard centroid coordinates of the cooking appliance to determine the centroid offset of the cooking appliance. The controller is also configured to trigger an offset prompt from the cooking appliance when the centroid offset is greater than a preset offset threshold.

7. The intelligent range hood according to claim 6, characterized in that, The infrared sensor is installed at the bottom of the smoke collection hood or the bottom of the smoke baffle of the smart range hood; the field of view of the infrared sensor covers the area where the cooking appliance is placed.

8. The intelligent range hood according to claim 6, characterized in that, The wavelength range of the infrared sensor matches the wavelength characteristics of the thermal radiation signal emitted by the cooking appliance.

9. A computer device, comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to run the computer program to perform the steps of the cooking utensil positioning method according to any one of claims 1 to 5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the cooking utensil positioning method according to any one of claims 1 to 5.

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