Slip pot detection method, range hood and stove linkage device and range hood and stove linkage system

Abstract

The invention provides a pan slipping detection method and a range hood and stove linkage device and system.The pan slipping detection method comprises the steps that N distance values between N measuring points on the outer side face of a pan and a stove horizontal plane of a stove are obtained, and the current circular plane area corresponding to the N measuring points is obtained based on the N distance values, and based on the preset circular plane area and the current circular plane area, determining whether the cookware on the cooker slips or not. The sliding pot detection method is simple and reliable, the accuracy of sliding pot detection is improved, and the use safety of a user is ensured; meanwhile, the cooker and the range hood are linked through the pan slipping detection method, a series of safe handling operations after pan slipping of the cookware can be intelligently achieved, and safe and reliable products are provided for users.

Description

Technical Field

[0001] This disclosure relates to the field of smart home appliance technology, and in particular to a method for detecting a slippery pot, a range hood and stove linkage device and system. Background Technology

[0002] As gas stoves become common in ordinary households, the cooking process, which requires a lot of water, such as steaming, boiling, and stewing, often results in the pan slipping, causing it to tip over and spill cooking liquids, which can lead to injuries. In addition, the spilled cooking liquids can contaminate the burner head, clog the burner holes, reduce combustion efficiency, and are difficult to clean. Furthermore, they may extinguish the burner flame, and if the thermocouple fails, it can cause a gas leak, which is extremely dangerous.

[0003] Existing technologies include detecting pan slippage through sound, which is costly and susceptible to interference from the external environment, and the accuracy of the detection needs to be improved.

[0004] Therefore, there is an urgent need to improve the existing pan slip detection technology. Summary of the Invention

[0005] The technical problem to be solved by this disclosure is to overcome the shortcomings of existing pan slip detection methods, such as high detection cost, susceptibility to external environmental interference, and low detection accuracy, and to provide a pan slip detection method, a range hood and stove linkage device and system.

[0006] This disclosure solves the above-mentioned technical problems through the following technical solution:

[0007] Firstly, a method for detecting pot slippage is provided, employing a range hood and cooktop linkage device, wherein the range hood and cooktop linkage device includes a cooktop, and the method for detecting pot slippage includes:

[0008] Obtain N distance values ​​from N measurement points on the outer side of the cookware to the horizontal plane of the stove;

[0009] Wherein, N is greater than or equal to 3 and is a positive integer, the projections of the N measurement points on the horizontal plane of the stove are on the same straight line, and the actual distance between each projection point is greater than the preset distance value.

[0010] The area of ​​the current circular plane corresponding to the N measurement points is obtained based on the N distance values;

[0011] Whether the pot on the stove slips is determined based on the preset circular plane area and the current circular plane area.

[0012] Optionally, the step of determining whether the pot on the stove has slipped based on the preset circular plane area and the current circular plane area includes:

[0013] Obtain the area of ​​the first preset circular plane and the area of ​​the second preset circular plane;

[0014] If the current circular plane area is greater than the first preset circular plane area and less than the second preset circular plane area, then it is determined that the pot has not slipped and the risk of slipping is low.

[0015] Optionally, the step of determining whether the pot on the stove has slipped based on the preset circular plane area and the current circular plane area includes:

[0016] Obtain the area of ​​the first preset circular plane and the area of ​​the second preset circular plane;

[0017] If the current circular plane area does not meet the condition of being greater than the first preset circular plane area and less than the second preset circular plane area, then it is determined that the pot has slipped.

[0018] Optionally, the step of obtaining N distance values ​​between N measurement points on the bottom of the pot and the horizontal plane of the stove includes:

[0019] Obtain the current value of the solenoid valve corresponding to the stove;

[0020] The stove is determined to be in the off state based on the current value of the solenoid valve.

[0021] If so, then the step of obtaining the N distance values ​​between the N measurement points on the bottom of the pot and the horizontal plane of the stove is performed.

[0022] Optionally, if the stove is in the ignition state, the current temperature value corresponding to the pot is obtained;

[0023] Determine whether the current temperature value is greater than a first preset threshold;

[0024] If so, then the step of obtaining the N distance values ​​between the N measurement points on the bottom of the pot and the horizontal plane of the stove is performed.

[0025] Optionally, if the stove is in the ignition state, the current temperature value corresponding to the pot is obtained;

[0026] Obtain the derivative of the current temperature value with time;

[0027] Determine whether the derivative value is greater than a second preset threshold;

[0028] If so, then the step of obtaining the N distance values ​​between the N measurement points on the bottom of the pot and the N distance values ​​between the pot and the stove surface is performed.

[0029] Optionally, the method for detecting a slippery pot further includes:

[0030] If it is determined that the cookware has slipped, a first adjustment signal is sent to the stove to adjust the stove to turn off the heat.

[0031] And / or, if it is determined that the cookware has slipped, a reminder message is triggered to indicate that the cookware has slipped;

[0032] And / or, the range hood and stove linkage device further includes a range hood; the pan slip detection method further includes:

[0033] If it is determined that the cookware has slipped, a second adjustment signal is sent to the range hood to adjust the range hood to its maximum airflow.

[0034] Secondly, a range hood and stove linkage device is provided, the range hood and stove linkage device includes a stove, and the range hood and stove linkage device uses the above-mentioned pot slip detection method to detect pot slippage on the stove.

[0035] Optionally, the range hood and stove linkage device also includes a range hood;

[0036] And / or, the cooktop is equipped with a temperature sensor, which is used to detect the current temperature value of the cookware;

[0037] And / or, the cooktop is equipped with a distance sensor, which is used to detect the distance between a measuring point on the outer side of the cookware and the horizontal plane of the cooktop.

[0038] Thirdly, a range hood and cooktop linkage system is provided, the range hood and cooktop linkage system including cookware and the aforementioned range hood and cooktop linkage device.

[0039] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this disclosure.

[0040] The positive and progressive effects of this disclosure are as follows:

[0041] This disclosed method, range hood and cooktop linkage device and system for detecting pot slippage acquires N distance values ​​from N measuring points on the outer surface of the pot to the horizontal plane of the cooktop. Based on these N distance values, it obtains the current circular plane area corresponding to each measuring point. Then, it determines whether the pot has slipped on the cooktop based on a preset circular plane area and the current circular plane area. This method is simple and reliable, improving the accuracy of pot slippage detection and ensuring user safety. Furthermore, by linking the cooktop and range hood, the method can intelligently implement a series of safety procedures after pot slippage, providing users with a safe and reliable product. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the first process of the pan slip detection method provided in Embodiment 1 of this disclosure;

[0043] Figure 2 This is a schematic diagram of the second process of the pan slip detection method provided in Embodiment 1 of this disclosure;

[0044] Figure 3 This is a schematic diagram of the third process of the pan slip detection method provided in Embodiment 1 of this disclosure;

[0045] Figure 4 This is a schematic diagram of the fourth process of the pan slip detection method provided in Embodiment 1 of this disclosure;

[0046] Figure 5 This is a schematic diagram of the fifth process of the pan slip detection method provided in Embodiment 1 of this disclosure;

[0047] Figure 6 This is a schematic diagram of the sixth process of the pan slip detection method provided in Embodiment 1 of this disclosure;

[0048] Figure 7 This is a schematic diagram of the seventh process of the pan slip detection method provided in Embodiment 1 of this disclosure;

[0049] Figure 8 This is a schematic diagram of the eighth process of the pan slip detection method provided in Embodiment 1 of this disclosure;

[0050] Figure 9 This is a schematic diagram showing the sensor placement location in the range hood and stove linkage device provided in Embodiment 2 of this disclosure. Detailed Implementation

[0051] The present disclosure is further illustrated below by way of embodiments, but the present disclosure is not limited to the scope of the embodiments described herein.

[0052] The prefixes such as "first" and "second" used in this disclosure are merely for distinguishing different descriptive objects and do not limit the position, order, priority, quantity, or content of the described objects. The use of ordinal numbers and other prefixes used to distinguish descriptive objects in this disclosure does not constitute a limitation on the described objects. The description of the described objects is given in the claims or the context of the embodiments, and should not be construed as an unnecessary limitation. Furthermore, in the description of this embodiment, unless otherwise stated, "multiple" means two or more.

[0053] Example 1

[0054] This embodiment provides a method for detecting pot slippage, which utilizes a range hood and cooktop linkage device. The range hood and cooktop linkage device includes a cooktop, such as... Figure 1 As shown, the method for detecting a slippery pan includes:

[0055] S1. Obtain the N distance values ​​from the N measurement points on the outer side of the cookware to the horizontal plane of the stove.

[0056] Where N is greater than or equal to 3 and is a positive integer, the projections of the N measurement points on the horizontal plane of the stove are on the same straight line, and the actual distance between each projection point is greater than the preset distance value.

[0057] S2. Obtain the current circular plane area corresponding to N measurement points based on N distance values.

[0058] S3. Determine whether the pot on the stove is slipping based on the preset circular plane area and the current circular plane area.

[0059] Specifically, a distance sensor installed on the cooktop can detect the distance between a measuring point on the outer side of the cookware and the horizontal plane of the cooktop.

[0060] The distance sensor can be placed outside the cooktop, but it needs to be unobstructed to ensure that it can detect the distance between the cooktop and the outer surface of the cookware. That is, the distance between the measurement point on the outer surface of the cookware and the horizontal plane of the cooktop, which is the horizontal plane where the distance sensor is located.

[0061] The distance sensor can also be installed inside the cooktop, but it needs to be protected from obstructions to ensure it can detect the distance between the sensor and the outside of the cookware. Specifically, it measures the distance from the measurement point on the outside of the cookware to the horizontal plane of the cooktop, which is the same horizontal plane where the distance sensor is located.

[0062] There must be at least three measurement points on the outer surface of the cookware, meaning N is greater than or equal to 3 and is a positive integer. Therefore, the distance sensor should be set to at least three, consistent with the number of measurement points. When the cookware slides, the area of ​​the circle formed by the three measurement points will change; therefore, the current circular plane area is used to determine whether the cookware has slided.

[0063] Multiple distance sensors should be on the same horizontal plane, with the center of the stove as the center. Each distance sensor will be located on the same straight line on the same horizontal plane, with different distances from the center. The positional interval between each distance sensor should be greater than a preset interval, meaning the positions change sequentially. Taking three distance sensors as an example, one can be positioned near the center, one far from the center, and one in the center. This will detect the distances from the stove's horizontal plane at three locations: near the bottom of the pot, far from the bottom of the pot, and in the center of the outer edge of the pot. Based on these three distance values, the current circular plane area corresponding to the three measurement points can be obtained.

[0064] The pot slip detection method of this embodiment obtains N distance values ​​from N measurement points on the outer side of the pot to the horizontal plane of the stove, obtains the current circular plane area corresponding to the N measurement points based on the N distance values, and determines whether the pot on the stove has slipped based on the preset circular plane area and the current circular plane area. This pot slip detection method is simple and reliable, improves the accuracy of pot slip detection, and ensures user safety.

[0065] In an alternative implementation, such as Figure 2 As shown, step S3 above includes:

[0066] S31. Obtain the area of ​​the first preset circular plane and the area of ​​the second preset circular plane.

[0067] S32. If the current circular plane area is greater than the first preset circular plane area and less than the second preset circular plane area, then it is determined that the pot has not slipped and the risk of slipping is low.

[0068] The areas of the first and second preset circular planes can be determined through experimental statistics, and the area of ​​the second preset circular plane is greater than that of the first preset circular plane.

[0069] In actual use, the circular area collected after the user places the pot on the ground for the first time is the first preset circular area. The circular area collected after placing the pot on the ground again is the second preset circular area. Normally, the collected second preset circular area is larger than the first preset circular area. If the second preset circular area is close to the first preset circular area, it indicates that the bottom of the pot is relatively flat and will not slip.

[0070] In this embodiment, if the current circular plane area is greater than the first preset circular plane area and less than the second preset circular plane area, it is determined that the pot has not slipped and the risk of slipping is low.

[0071] In an alternative implementation, such as Figure 2 As shown, step S3 above includes:

[0072] S31. Obtain the area of ​​the first preset circular plane and the area of ​​the second preset circular plane.

[0073] S33. If the current circular plane area does not meet the condition of being greater than the first preset circular plane area and less than the second preset circular plane area, then it is determined that the pot has slipped.

[0074] As mentioned above, the areas of the first and second preset circular planes can be obtained through experimental statistics, and the area of ​​the second preset circular plane is greater than that of the first preset circular plane.

[0075] As described above, in actual use, the circular area collected after the user places the pot on the ground for the first time is the first preset circular area, and the circular area collected after placing the pot on the ground again is the second preset circular area. Normally, the collected second preset circular area is larger than the first preset circular area. If the second preset circular area is close to the first preset circular area, it indicates that the pot bottom is relatively flat and will not easily slip.

[0076] In this embodiment, if the current circular plane area does not meet the condition of being greater than the first preset circular plane area and less than the second preset circular plane area, it is determined that the pot has slipped.

[0077] In an alternative implementation, such as Figure 3 As shown, the steps preceding step S1 include:

[0078] S01. Obtain the current value of the solenoid valve corresponding to the stove.

[0079] S02. Determine whether the stove is in the off state based on the current value of the solenoid valve.

[0080] If so, then execute step S1, that is, if the stove is in the off state, execute the step of obtaining the N distance values ​​of N measurement points on the bottom of the pot from the horizontal plane of the stove.

[0081] The stove's status can be determined by the current value of the solenoid valve. If the current value is less than the preset value, the stove is off; otherwise, it is on. If the stove is off, a pan slippage detection is performed (before or after cooking) to directly obtain N distance values ​​from N measurement points on the bottom of the pan to the horizontal plane of the stove, and then proceed to the next step.

[0082] In an alternative implementation, such as Figure 4 As shown, if the stove is in the ignition state, steps S03 and S04 are executed sequentially.

[0083] S03. Obtain the current temperature value corresponding to the cookware.

[0084] S04. Determine whether the current temperature value is greater than the first preset threshold.

[0085] If so, then execute step S1, that is, if the current temperature value is greater than the first preset threshold, then execute the step of obtaining the N distance values ​​of N measurement points on the bottom of the pot from the horizontal plane of the stove.

[0086] If the stove is on, a pan slip detection is performed while the stove is on (cooking). At this time, the current temperature value of the pan needs to be obtained first, and the current temperature value is compared with the first preset threshold. If the current temperature value is greater than the first preset threshold, the N distance values ​​of N measurement points on the bottom of the pan from the horizontal plane of the stove are obtained, and the next step is performed.

[0087] In an alternative implementation, such as Figure 5 As shown, if the stove is in the ignition state, steps S03, S05, and S06 are executed sequentially.

[0088] S03. Obtain the current temperature value corresponding to the cookware.

[0089] S05. Obtain the derivative of the current temperature value with time.

[0090] S06. Determine whether the derivative value is greater than the second preset threshold.

[0091] If so, then execute step S1, that is, if the current temperature value is greater than the second preset threshold, then execute the step of obtaining the N distance values ​​between the N measurement points on the bottom of the pot and the horizontal plane of the stove.

[0092] If the stove is on, a pan slip detection is performed. At this time, the current temperature value of the pan needs to be obtained, the derivative of the current temperature value with time is calculated, and the derivative value is compared with the second preset threshold. If the derivative value is greater than the second preset threshold, the N distance values ​​of N measurement points on the bottom of the pan from the horizontal plane of the stove are obtained, and the next step is performed.

[0093] By comparing the derivative of the current temperature value of the cookware with time with a second preset threshold, the change of the current temperature value of the cookware over time can be accurately determined, thereby more accurately determining whether the stove is in the on state, and then performing pan slip detection in the on state.

[0094] In an alternative implementation, such as Figure 6 As shown, if it is determined that the cookware has slipped, the detection method for slipping also includes:

[0095] S4. Send the first adjustment signal to the stove to adjust the stove to turn off.

[0096] If the cookware has already slipped, turn off the stove to prevent the cooking liquid from flowing out of the pot and extinguishing the gas flame, which could lead to a gas leak. The stove should be turned off immediately to avoid a continued gas leak.

[0097] The pot slip detection method of this embodiment links the stove and the pot together, and can intelligently realize a series of safety handling operations after the pot slips, providing users with a safe and reliable product.

[0098] In an alternative implementation, such as Figure 7 As shown, if it is determined that the cookware has slipped, the detection method for slipping also includes:

[0099] S5. Trigger a notification message to remind you that the pot has slipped.

[0100] If the cookware has slipped, a notification message will be sent to the user, which can be a voice announcement or a buzzer. This disclosure does not limit the type of notification message.

[0101] In an alternative implementation, such as Figure 8 As shown, the range hood and stove linkage device also includes a range hood. If it is determined that the cookware has slipped, the slip detection method also includes:

[0102] S6. Send a second adjustment signal to the range hood to adjust the range hood to its maximum airflow.

[0103] Generally speaking, when a cookware slips, the cooking liquid in the pot will extinguish the open flame of the gas, leading to a gas leak. It is necessary to turn off the stove immediately to prevent the gas leak from continuing. At the same time, turn the range hood to the maximum speed to quickly remove the leaked gas and ensure user safety.

[0104] The pot slip detection method of this embodiment links the stove, pot and range hood, and can intelligently realize a series of safety handling operations after the pot slips, providing users with a safe and reliable product.

[0105] Example 2

[0106] This embodiment provides a stove-range cooker linkage device, which includes a cooker. The stove-range cooker linkage device uses the pot slip detection method in Embodiment 1 to detect pot slippage on the cooker.

[0107] In an optional embodiment, the range hood and stove linkage device also includes a range hood.

[0108] In one alternative embodiment, the cooktop is equipped with a temperature sensor for detecting the current temperature of the cookware.

[0109] The temperature sensor can be placed in the center of the stove burner, in contact with the outer surface of the cookware. Alternatively, the temperature sensor can be placed on the cookware support of the stove, also in contact with the outer surface of the cookware; the placement should be based on the ability to capture the current temperature of the cookware.

[0110] In an optional embodiment, the cooktop is equipped with a distance sensor for detecting the distance between a measuring point on the outer side of the cookware and the horizontal plane of the cooktop.

[0111] Specifically, N distance sensors are set up to detect N distance values ​​between N second measurement points on the outer side of the cookware and the horizontal plane of the stove. The number of distance sensors is the same as the number of measurement points, and N is greater than or equal to 3 and is a positive integer.

[0112] The distance sensor can be placed outside the cooktop, but it needs to be unobstructed to ensure that it can detect the distance between the cooktop and the outer surface of the cookware. That is, the distance between the measurement point on the outer surface of the cookware and the horizontal plane of the cooktop, which is the horizontal plane where the distance sensor is located.

[0113] The distance sensor can also be installed inside the cooktop, but it needs to be protected from obstructions to ensure it can detect the distance between the sensor and the outside of the cookware. Specifically, it measures the distance from the measurement point on the outside of the cookware to the horizontal plane of the cooktop, which is the same horizontal plane where the distance sensor is located.

[0114] There are at least 3 measurement points on the outer surface of the cookware, that is, N is greater than or equal to 3 and is a positive integer. Therefore, the number of distance sensors is set to at least 3, which is consistent with the number of measurement points.

[0115] Multiple distance sensors should be on the same horizontal plane. If the center of the stove is taken as the center, then all distance sensors are located on the same straight line on the same horizontal plane, with different distances from the center. The positional interval between each distance sensor is greater than a preset interval, meaning the set positions change sequentially. Taking three distance sensors as an example, one can be set near the center, one away from the center, and one in the center. This allows for the detection of the distance values ​​from the horizontal plane of the stove at three locations: near the bottom of the pot, away from the bottom of the pot, and in the center of the outer side of the pot. Based on these three distance values, the current circular plane area corresponding to three second measurement points can be obtained.

[0116] like Figure 9 As shown, the temperature sensor is located at the center of the stove burner, in contact with the outer surface of the cookware, while the distance sensor is located inside the stove.

[0117] The range hood and cooktop linkage device in this embodiment uses the pot slip detection method in Embodiment 1 to determine whether the pot on the cooktop has slipped. This pot slip detection method is simple and reliable, improves the accuracy of pot slip detection, and ensures user safety. At the same time, the range hood and cooktop linkage device links the cooktop and the range hood, and can intelligently realize a series of safety handling operations after the pot slips, providing users with a safe and reliable product.

[0118] Example 3

[0119] This embodiment provides a range hood and cooktop linkage system, which includes cookware and the range hood and cooktop linkage device in Embodiment 2.

[0120] The range hood and cooktop linkage system may also include other components, such as a communication module and a cooktop status acquisition module. The communication module can communicate with the control circuit boards inside the cooktop and the range hood respectively. The cooktop status acquisition module can acquire the status of the cooktop, such as on and off signals, through the communication module, and send the cooktop status to the control circuit board inside the range hood through the communication module to realize the linkage control of the range hood and cooktop.

[0121] The range hood and cooktop linkage system of this embodiment includes a cookware and the range hood and cooktop linkage device of Embodiment 2. It acquires N distance values ​​from N measuring points on the outer surface of the cookware to the horizontal plane of the cooktop. Based on these N distance values, it obtains the current circular plane area corresponding to each measuring point. Based on the preset circular plane area and the current circular plane area, it determines whether the cookware on the cooktop has slipped. This slip-out detection method is simple and reliable, improving the accuracy of slip-out detection and ensuring user safety. Simultaneously, the slip-out detection method links the cooktop and range hood, intelligently implementing a series of safety procedures after the cookware slips, providing users with a safe and reliable product.

[0122] While specific embodiments of this disclosure have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this disclosure, but all such changes and modifications fall within the scope of protection of this disclosure.

Claims

1. A method for detecting a slippery pot, characterized in that, The application of a range hood and cooktop linkage device, wherein the range hood and cooktop linkage device includes a cooktop, and the method for detecting a slipping pot includes: Obtain N distance values ​​from N measurement points on the outer side of the cookware to the horizontal plane of the stove; Wherein, N is greater than or equal to 3 and is a positive integer, the projections of the N measurement points on the horizontal plane of the stove are on the same straight line, and the actual distance between each projection point is greater than the preset distance value. The area of ​​the current circular plane corresponding to the N measurement points is obtained based on the N distance values; Whether the pot on the stove slips is determined based on the preset circular plane area and the current circular plane area.

2. The method for detecting slippage in a pot according to claim 1, characterized in that, The step of determining whether the pot on the stove has slipped based on the preset circular plane area and the current circular plane area includes: Obtain the area of ​​the first preset circular plane and the area of ​​the second preset circular plane; If the current circular plane area is greater than the first preset circular plane area and less than the second preset circular plane area, then it is determined that the pot has not slipped and the risk of slipping is low.

3. The method for detecting slippage in a pot according to claim 1, characterized in that, The step of determining whether the pot on the stove has slipped based on the preset circular plane area and the current circular plane area includes: Obtain the area of ​​the first preset circular plane and the area of ​​the second preset circular plane; If the current circular plane area does not meet the condition of being greater than the first preset circular plane area and less than the second preset circular plane area, then it is determined that the pot has slipped.

4. The method for detecting slippage in a pot according to claim 1, characterized in that, Before the step of obtaining the N distance values ​​from the N measuring points on the bottom of the pot to the N horizontal plane of the stove, the following steps are included: Obtain the current value of the solenoid valve corresponding to the stove; The stove is determined to be in the off state based on the current value of the solenoid valve. If so, then the step of obtaining the N distance values ​​between the N measurement points on the bottom of the pot and the horizontal plane of the stove is performed.

5. The method for detecting slippage in a pot according to claim 4, characterized in that, If the stove is in the on state, then obtain the current temperature value corresponding to the pot; Determine whether the current temperature value is greater than a first preset threshold; If so, then the step of obtaining the N distance values ​​between the N measurement points on the bottom of the pot and the horizontal plane of the stove is performed.

6. The method for detecting slippage in a pot according to claim 4, characterized in that, If the stove is in the on state, then obtain the current temperature value corresponding to the pot; Obtain the derivative of the current temperature value with time; Determine whether the derivative value is greater than a second preset threshold; If so, then the step of obtaining the N distance values ​​between the N measurement points on the bottom of the pot and the N distance values ​​between the pot and the stove surface is performed.

7. The method for detecting slippage in a pot according to claim 3, characterized in that, The method for detecting a slippery pot also includes: If it is determined that the cookware has slipped, a first adjustment signal is sent to the stove to adjust the stove to turn off the heat. And / or, if it is determined that the cookware has slipped, a reminder message is triggered to indicate that the cookware has slipped; And / or, the range hood and stove linkage device further includes a range hood; the pan slip detection method further includes: If it is determined that the cookware has slipped, a second adjustment signal is sent to the range hood to adjust the range hood to its maximum airflow.

8. A range hood and stove linkage device, characterized in that, The range hood and stove linkage device includes a stove, and the range hood and stove linkage device uses the pot slip detection method as described in any one of claims 1-7 to detect pot slippage on the stove.

9. The range hood and stove linkage device according to claim 8, characterized in that, The range hood and stove linkage device also includes a range hood; And / or, the cooktop is equipped with a temperature sensor, which is used to detect the current temperature value of the cookware; And / or, the cooktop is equipped with a distance sensor, which is used to detect the distance between a measuring point on the outer side of the cookware and the horizontal plane of the cooktop.

10. A range hood and stove linkage system, characterized in that, The range hood and cooktop linkage system includes cookware and the range hood and cooktop linkage device as described in claim 8 or 9.

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