Infrared temperature measurement module with smoke and stove linkage control function and method

Abstract

The invention discloses an infrared temperature measurement module with a smoke-stove linkage control function and a method, smoke-stove linkage control logic is integrated in the infrared temperature measurement module, the infrared temperature measurement module is used for accurately monitoring the temperature change above a stove in real time, and the set smoke-stove linkage control function logic is combined, so that the smoke-stove linkage control function is realized. The range hood is accurately controlled according to the actual lampblack generation condition, the use experience of a kitchen is improved, meanwhile, energy consumption is reduced, and the current concept is met. The infrared temperature measurement module and method with the range hood and stove linkage control function are suitable for various stoves including induction cookers, electromagnetic ranges and gas stoves, the application range of the range hood and stove linkage technology is widened, the dependence of the range hood and stove linkage function on products of specific manufacturers is broken through, and the range hood and stove linkage control function is achieved. And the universality and the compatibility of the linkage function of the range hood and the stove are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and particularly to an infrared temperature measurement module and method with a smoke range interlock control function, which can be widely applied to smoke range interlock control scenarios of various cookers such as gas stoves, induction cookers, and electromagnetic cookers. Background Art

[0002] In recent years, more and more topics have been proposed. With the improvement of people's living standards and the continuous improvement of the requirements for the kitchen environment, the intelligence and convenience of kitchen appliances have become an important direction for the development of the industry, and the smoke range interlock function has been increasingly favored by users. The smoke range interlock technology has emerged as the times require. Its original intention is to achieve the coordinated operation between the range hood and the cooker, improving the use efficiency of the kitchen and the user experience. At present, most of the traditional smoke range interlock technologies on the market start the range hood based on the ignition signal of the cooker, and the smoke range interlock control logic is usually implemented by the range hood control board. This simple interlock method has many drawbacks. For example, when the user performs an operation on the cooker that does not produce an open flame (such as stewing without lifting the pot lid), the range hood will not start, resulting in the failure to timely exhaust the oil fume in the kitchen; and when the user uses an open flame for a short operation (such as the instant of ignition), the range hood may continue to operate unnecessarily after starting, causing energy waste. In addition, the traditional smoke range interlock technology is mainly designed for gas stoves and has poor applicability to new cookers such as induction cookers and electromagnetic cookers. At the same time, since the smoke range interlock control logic is implemented by the range hood control board, the smoke range interlock function is limited within the product system of a specific smoke range design manufacturer, and it is difficult for the range hoods and cookers of different manufacturers to achieve effective interlock, greatly limiting the application scope and scenarios of the smoke range interlock function. Therefore, a new infrared temperature measurement module with a smoke range interlock control function is needed to overcome the deficiencies of the existing technology, achieve effective interlock control for various cookers, and broaden the application scope of the smoke range interlock function. Summary of the Invention

[0003] The object of the present invention is to provide an infrared temperature measurement module and method with a smoke range interlock control function, which can achieve precise control according to the actual oil fume generation situation, improve the use experience of the kitchen, and reduce energy consumption at the same time.

[0004] To achieve the above object, an infrared temperature measurement module with a smoke range hood linkage control function provided by the present invention includes an infrared temperature sensor, a data transmission unit, and a micro control unit. The micro control unit contains a signal processing unit. The feature is that the infrared temperature sensor is connected to the signal processing unit in the micro control unit, and the data of the signal processing unit is signal-connected to the data transmission unit through the micro control unit; the signal processing unit uses ADC sampling; the infrared temperature sensor is used to collect the temperature data above the cooker in real time. Whether it is above the open flame heating area of the gas stove or above the panel of the induction cooker or electromagnetic cooker, it can accurately sense the temperature change. The infrared temperature measurement module is installed above or on the side of the cooker, and the sensor probe of the infrared temperature measurement module is aligned with the center position of the cooker; the signal processing unit filters and amplifies the collected infrared energy signal, and the micro control unit processes the collected signal, converts the infrared energy signal into actual temperature data, and then the microcontroller processes and analyzes the current temperature data according to the set smoke range hood linkage control logic, converts it into a smoke range hood linkage control signal, and transmits the control signal to the receiving end of the range hood through the data transmission unit by physical direct connection, such as RS485, RS232, network port, optical fiber, etc. or wireless technology, such as Bluetooth, wifi, Zigbee, etc., and executes corresponding actions according to the smoke range hood linkage control signal.

[0005] An infrared temperature measurement method with a smoke range hood linkage control function includes using an infrared temperature measurement module composed of an infrared temperature sensor, a signal processing unit, a data transmission unit, and a micro control unit. The feature is that the infrared temperature measurement module is used to detect the temperature data above the cooker, process and transmit the data, and then judge and execute the control of the range hood; the detection and data processing of the temperature data above the cooker include the temperature and the change data of the temperature. The change data of the temperature includes the temperature rise speed, the temperature value, and the temperature change speed; the judgment of the temperature data includes the data analysis and judgment of normal temperature rise, temperature exceeding the threshold, temperature drop, and rapid temperature change. Through the data analysis and judgment of the temperature, the corresponding range hood control measures including starting, adjusting the wind speed, shutting down, and giving an alarm are executed.

[0006] The processing of the detected temperature data includes converting the detected infrared energy signal into actual temperature data. To ensure that the infrared temperature measurement module can accurately reflect the temperature of the cooking appliance, first, the infrared temperature measurement module is calibrated with the temperature value of the cooking appliance. Simulating the application scenarios of the range hood and the cooking appliance in an actual kitchen, the infrared temperature measurement module is installed at the reserved installation position of the range hood, and a standard blackbody radiation source is used to simulate the cooking appliance and placed at the position where the actual cooking appliance is located. The angle of the infrared temperature measurement module is adjusted to align it with the center position of the blackbody. The blackbody temperature values are set as T1, T2, T3, T4, T5, and T6 respectively. After the temperature stabilizes, the corresponding infrared energy signals V1, V2, V3, V4, V5, and V6 are collected by the infrared temperature measurement module. The curve fitting of the infrared energy signal is performed by the least squares method to obtain the functional relationship between the temperature data and the infrared energy signal: Y(temperature)=A*X^2 + B*X + C, where A, B, and C are the coefficients of the functional formula obtained by the least squares fitting respectively; in actual application, when the infrared module collects the energy signal Vx above the cooking appliance, substituting Vx into the above functional relationship can accurately calculate the temperature value above the current cooking appliance.

[0007] A further solution is the process of range hood and stove interlock control. Judgment for starting the range hood: When the user turns on the cooking appliance (whether it is the ignition of a gas stove or the startup of an induction cooker), it triggers the start of the range hood and stove interlock control process. The infrared temperature sensor collects the temperature data above the cooking appliance at a frequency of once per second. The micro-control unit starts to record the temperature data and calculates the temperature rise rate. First, it records the temperature value T1 at the current moment and compares it with the temperature value T0 at the previous moment to calculate the temperature rise rate per minute. If the temperature rise rate exceeds the threshold TH1 (such as rising 5°C per minute), the micro-control unit determines that the cooking operation that may generate oil fume has started. At this time, the micro-control unit sends a start signal to the range hood through the data transmission module. After the signal is relayed by the data transmission unit, the range hood receives the signal, starts up and sets the fan speed to the low-speed operation mode.

[0008] A further solution is the speed regulation judgment of the range hood: If the temperature continues to rise and exceeds the threshold TH2 (such as 100 °C), the micro-control unit determines that the amount of oil fume generated increases, and sends a signal to the range hood through the data transmission unit to increase the range hood's wind speed to the medium wind speed operation mode. The control signal is also transmitted to the range hood through the communication module of the control device. After receiving the instruction, the range hood adjusts the fan speed to the parameter corresponding to the medium wind speed. For example, during the process of frying steak, after the range hood operates at a low wind speed for 5 minutes, the temperature above the electromagnetic stove panel rises to 110 °C, exceeding the threshold TH2 of 100 °C. The micro-control unit sends an instruction through the data transmission unit to switch the range hood to the medium wind speed operation mode. If the temperature further rises and exceeds the threshold TH3 (180 °C), the micro-control unit will increase the range hood's wind speed to the high wind speed operation mode through the data transmission unit to ensure the timely and effective discharge of a large amount of oil fume. If the temperature changes sharply (such as rising or falling by more than 10 °C) within a short period of time (such as within 1 minute), the micro-control unit will immediately increase the wind speed to the next higher gear to ensure the rapid discharge of oil fume.

[0009] A further solution is the safety reminder logic: If the temperature exceeds the safety threshold TH5 (such as 270 °C), the micro-control unit not only adjusts the range hood's wind speed to the highest through the data transmission module, but also sends an alarm signal to the user terminal through the data transmission unit to remind the user to pay attention to safety.

[0010] A further solution is the shutdown of the range hood: If the temperature continues to drop below the fifth preset threshold (such as 50 °C) and lasts for a period of time (such as 5 minutes), the micro-control unit sends a signal through the data transmission module to turn off the range hood. The micro-control unit will continuously record the time when the temperature is below 50 °C. When it reaches 5 minutes, it sends a shutdown instruction, which is transmitted to the range hood through the data transmission unit. After receiving the signal, the range hood stops the fan operation, completing the entire range hood and stove linkage process.

[0011] In the present invention, by integrating the range hood and stove linkage control logic into the infrared temperature measurement module, the infrared temperature measurement module is used to accurately monitor the temperature change above the stove in real time, and combined with the unique range hood and stove linkage control function logic, precise control of the range hood according to the actual oil fume generation situation is realized, improving the kitchen use experience and at the same time reducing energy consumption, which conforms to the current concept. Moreover, the technical solution of the present invention is applicable to various stoves including electromagnetic cookers, induction cookers, and gas stoves, broadening the application scope of the range hood and stove linkage technology, breaking the dependence of the range hood and stove linkage function on products of specific manufacturers, and improving the versatility and compatibility of the range hood and stove linkage function.

[0012] An infrared temperature measurement module and method with a smoke range linkage control function designed by this invention for a patent innovatively integrates the smoke range linkage control logic into the infrared temperature measurement module, which is different from the traditional method implemented by the range hood control board. This design enables the infrared temperature measurement module to not only have the functions of temperature acquisition and processing, but also directly control the range hood according to the temperature data, reducing the dependence on the range hood control board and lowering the complexity and cost of the system.

[0013] Innovation in universality and compatibility: Since the smoke range linkage control logic is implemented in the infrared temperature measurement module, the technical solution of this invention can be applied to range hoods and cooktops produced by different manufacturers. As long as the temperature above the cooktop can be accurately collected by the infrared temperature measurement module and the range hood can receive and execute the control signal sent by the infrared temperature measurement module, the smoke range linkage function can be achieved, greatly improving the universality and compatibility of the smoke range linkage function and breaking the limitation of the smoke range linkage function on the product system of a specific manufacturer.

[0014] Innovation in algorithm optimization: The smoke range linkage control function logic algorithm of this invention fully considers the impact of temperature changes during the cooking process on the generation of lampblack. By setting reasonable temperature thresholds and change speeds, it realizes the precise matching of the operating state of the range hood with the actual lampblack generation situation. At the same time, the algorithm is more perfect in dealing with special situations (such as rapid temperature changes, over-temperature, etc.), improving the stability and safety of the system.

[0015] By integrating the smoke range linkage control logic into the infrared temperature measurement module, this invention uses the infrared temperature measurement module to accurately monitor the temperature changes above the cooktop in real time, and combines the unique smoke range linkage control function logic to achieve precise control of the range hood according to the actual lampblack generation situation, improving the use experience in the kitchen and reducing energy consumption at the same time, which conforms to the current concept. Moreover, the technical solution of this invention is applicable to various cooktops including induction cooktops, electromagnetic cooktops, and gas cooktops, broadening the application scope of the smoke range linkage technology, breaking the dependence of the smoke range linkage function on the products of specific manufacturers, and improving the universality and compatibility of the smoke range linkage function. Description of the Drawings

[0016] Figure 1 It is the signal connection diagram of each unit of the module; Figure 2 It is a schematic diagram of the sensor installation position embodiment; Figure 3 It is the circuit diagram of the signal processing unit embodiment; Figure 4 It is the structural block diagram of the infrared temperature measurement module; Figure 5 It is the infrared detection control flow chart; Figure 6 It is the smoke range linkage control process flow chart. Detailed Implementation Modes

[0017] The preferred embodiments of the present invention patent will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention patent and are not used to limit the present invention patent.

[0018] Embodiment 1.

[0019] An infrared temperature measurement module with a smoke stove linkage control function provided in this embodiment includes an infrared temperature sensor, a data transmission unit, and a micro-control unit. The micro-control unit contains a signal processing unit. The feature is that the infrared temperature sensor is connected to the signal processing unit in the micro-control unit, and the data of the signal processing unit is signal-connected to the data transmission unit through the micro-control unit; the signal processing unit uses ADC sampling; as Figure 1 shown, the infrared temperature sensor is used to collect temperature data above the cooking stove in real time. Whether it is above the open flame heating area of the gas stove or above the panel of the induction cooker or electromagnetic stove, it can accurately sense temperature changes. The infrared temperature measurement module is installed above or on the side of the cooking stove, and the sensor probe of the infrared temperature measurement module is aligned with the center position of the cooking stove (as Figure 2 shown); for the said signal processing unit, its circuit schematic diagram (as Figure 3 shown), the signal processing circuit filters and amplifies the collected infrared energy signal, etc. The micro-control unit processes the collected signal, converts the infrared energy signal into actual temperature data, and then the microcontroller processes and analyzes the current temperature data according to the set smoke stove linkage control logic, converts it into a smoke stove linkage control signal, and transmits the control signal to the receiving end of the range hood through the data transmission unit through physical direct connection, such as RS485, RS232, network port, optical fiber, etc., or wireless technologies such as Bluetooth, wifi, Zigbee, etc., and executes corresponding actions according to the smoke stove linkage control signal.

[0020] An infrared temperature measurement method with a smoke stove linkage control function provided in this embodiment includes using an infrared temperature measurement module composed of an infrared temperature sensor, a signal processing unit, a data transmission unit, and a micro-control unit. The feature is to use the infrared temperature measurement module to detect the temperature data above the cooking stove, process and transmit the data, and then judge and execute the control of the range hood; the detection and data processing of the temperature data above the cooking stove include the temperature and the change data of the temperature. The change data of the temperature includes the temperature rising speed, the temperature value, and the temperature change speed; the judgment of the temperature data includes the data analysis and judgment of normal temperature rise, temperature exceeding the threshold, temperature drop, and rapid temperature change. Through the data analysis and judgment of the temperature, corresponding range hood control measures including starting, adjusting the wind speed, closing, and issuing an alarm are executed.

[0021] The processing of the detected temperature data includes converting the detected infrared energy signal into actual temperature data. To ensure that the infrared temperature measurement module can accurately reflect the temperature of the cooking appliance, first, the infrared temperature measurement module is calibrated with the temperature value of the cooking appliance. Simulating the application scenarios of the range hood and the cooking appliance in an actual kitchen, the infrared temperature measurement module is installed at the reserved installation position of the range hood, and a standard blackbody radiation source is used to simulate the cooking appliance and placed at the position where the actual cooking appliance is located. The angle of the infrared temperature measurement module is adjusted to align it with the center of the blackbody. The blackbody temperature values are set as T1, T2, T3, T4, T5, and T6 respectively. After the temperature stabilizes, the corresponding infrared energy signals V1, V2, V3, V4, V5, and V6 are collected by the infrared temperature measurement module. The curve fitting of the infrared energy signal is performed by the least squares method to obtain the functional relationship between the temperature data and the infrared energy signal: Y(temperature)=A*X^2+B*X+C, where A, B, and C are the coefficients of the functional formula obtained by the least squares fitting respectively. In actual application, when the infrared module collects the energy signal Vx above the cooking appliance, substituting Vx into the above functional relationship can accurately calculate the temperature value above the current cooking appliance. For example, if the infrared energy signal of the infrared temperature measurement probe obtained by the current micro-control unit is 5500uv and the functional relationship is Y(temperature)=-0.0000002*X^2+0.0158669*X+19.4455729, the current temperature value is calculated to be 100.66°C according to the formula.

[0022] Smoke range hood linkage control process, smoke range hood startup judgment: When the user turns on the cooking appliance (whether it is the ignition of a gas stove or the startup of an induction cooker), the startup of the smoke range hood linkage control process is triggered. The infrared temperature sensor collects the temperature data above the cooking appliance at a frequency of once per second. The micro-control unit starts to record the temperature data and calculates the temperature rise rate. First, it records the temperature value T1 at the current moment and compares it with the temperature value T0 at the previous moment to calculate the temperature rise rate per minute. If the temperature rise rate exceeds the threshold TH1 (such as rising 5°C per minute), the micro-control unit determines that the cooking operation that may generate oil fumes has started. At this time, the micro-control unit sends a startup signal to the smoke range hood through the data transmission module. After the signal is relayed by the data transmission unit, the smoke range hood receives the signal, starts up and sets the fan speed to the low-speed operation mode. For example, when the user uses an induction cooker to fry steak, initially the temperature above the induction cooker panel is 25°C. After 1 minute, the temperature rises to 32°C, and the temperature rises by 7°C, exceeding the threshold TH1 of rising 5°C per minute. The micro-control unit of the infrared temperature measurement module immediately sends a signal to start the smoke range hood and sets it to the low-speed operation mode.

[0023] Range hood speed adjustment judgment: If the temperature continues to rise and exceeds the threshold TH2 (e.g., 100°C), the micro-control unit determines that the amount of cooking fumes generated has increased, and sends a signal to the range hood through the data transmission unit to increase the range hood's wind speed to the medium wind speed operation mode. The control signal is also transmitted to the range hood through the communication module of the control device. After receiving the instruction, the range hood adjusts the fan speed to the parameters corresponding to the medium wind speed. For example, during the process of frying steak, the range hood operates at a low wind speed for 5 minutes, and then the temperature above the induction cooker panel rises to 110°C, exceeding the threshold TH2 of 100°C. The micro-control unit sends an instruction through the data transmission unit to switch the range hood to the medium wind speed operation mode. If the temperature further rises and exceeds the threshold TH3 (180°C), the micro-control unit will increase the range hood's wind speed to the high wind speed operation mode through the data transmission unit to ensure the timely and effective discharge of a large amount of cooking fumes. If the temperature changes sharply (rises or falls by more than 10°C) within a short period of time (e.g., within 1 minute), the micro-control unit will immediately increase the wind speed to the next higher gear to ensure the rapid discharge of cooking fumes. For example, when the user suddenly adds a large amount of frozen ingredients during the medium wind speed cooking process, the temperature above the induction cooker panel drops from 130°C to 118°C within 1 minute, a decrease of 12°C, exceeding the change range of a 10°C decrease within 1 minute. The micro-control unit quickly adjusts the range hood's wind speed to the high wind speed mode. If the temperature above the cooktop starts to drop, the infrared temperature measurement module continuously monitors the temperature change and transmits the data to the micro-control unit. When the temperature starts to drop and the rate of decrease exceeds the threshold TH4 (8°C per minute), the micro-control unit determines that the cooking operation may be entering the final stage and reduces the range hood's wind speed to the low wind speed operation mode through the data transmission module to continue discharging the remaining small amount of cooking fumes while reducing energy consumption. For example, after the hot pot is cooked, the user turns off the induction cooker, and the temperature above the induction cooker panel starts to drop. The initial temperature is 165°C, and it drops to 153°C at the 1st minute, a decrease of 12°C, exceeding the threshold TH4 of an 8°C decrease per minute. The micro-control unit reduces the range hood's wind speed to the low wind speed operation mode. Safety reminder logic: If the temperature exceeds the safety threshold TH5 (270°C), the micro-control unit not only adjusts the range hood's wind speed to the highest through the data transmission module, but also sends an alarm signal to the user terminal through the data transmission unit to remind the user to pay attention to safety. For example, when it is detected that the temperature above the cooktop reaches 280°C, the micro-control unit immediately adjusts the range hood's wind speed to the highest and sends an alarm message to notify the user that there may be abnormal situations such as dry burning, so that the user can take timely measures.

[0024] Range hood shut-off: If the temperature continues to drop below the fifth preset threshold (50°C) and remains so for a certain period of time (e.g., 5 minutes), the micro-control unit sends a signal via the data transmission module to shut off the range hood. The micro-control unit continuously records the time when the temperature is below 50°C. When it reaches 5 minutes, it sends a shut-off instruction, which is transmitted to the range hood via the data transmission unit. After receiving the signal, the range hood stops the operation of the fan, completing the entire range hood and stove linkage process. For example, when the temperature above the induction cooker panel drops to 42°C, which is already below the fifth preset threshold of 50°C and has lasted for more than 5 minutes, the micro-control unit sends a signal to shut off the range hood, and at this time, the range hood and stove linkage function ends.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An infrared temperature measurement module with a smoke stove interlock control function, comprising an infrared temperature sensor, a data transmission unit, and a micro control unit, wherein the micro control unit includes a signal processing unit, and is characterized in that The infrared temperature sensor is connected to the signal processing unit in the microcontroller unit, and the data of the signal processing unit is signal-connected to the data transmission unit through the microcontroller unit; the signal processing unit uses ADC sampling; the infrared temperature sensor is used to collect the temperature data above the cooking stove in real time. The infrared temperature measurement module is installed above or on the side of the cooking stove, and the infrared temperature sensor probe of the infrared temperature measurement module is aligned with the center position of the cooking stove. The signal processing unit filters and amplifies the collected infrared energy signal. The microcontroller unit processes the collected signal and converts the infrared energy signal into actual temperature data. Then, the microcontroller processes and analyzes the current temperature data according to the set smoke range linkage control logic, converts it into a smoke range linkage control signal, and transmits the control signal to the receiving end of the range hood through the data transmission unit by physical direct connection or wireless technology, and executes corresponding actions according to the smoke range linkage control signal.

2. An infrared temperature measurement method with a smoke stove linkage control function, which includes using an infrared temperature measurement module composed of an infrared temperature sensor, a signal processing unit, a data transmission unit, and a micro-control unit, characterized in that The infrared temperature measurement module is used to detect the temperature data above the cooking stove, process and transmit the data, and then judge and execute the control of the range hood; the detection and data processing of the temperature data above the cooking stove include the temperature and the change data of the temperature. The change data of the temperature includes the temperature rising speed, the temperature value, and the temperature change speed; the judgment of the temperature data includes the data analysis and judgment of normal temperature rising, temperature exceeding the threshold, temperature dropping, and sharp temperature change. Through the data analysis and judgment of the temperature, the corresponding range hood control measures including starting, adjusting the wind speed, shutting down, and giving an alarm are executed.

3. An infrared temperature measurement method with a smoke stove interlock control function according to claim 2, characterized in that The processing of the detected temperature data includes converting the detected infrared energy signal into actual temperature data. First, the infrared temperature measurement module is calibrated with the temperature value of the cooking stove, simulating the application scenarios of the range hood and the cooking stove in the actual kitchen. The infrared temperature measurement module is installed at the reserved installation position of the range hood, and the standard blackbody radiation source simulates the cooking stove and is placed at the position where the actual cooking stove is located. The angle of the infrared temperature measurement module is adjusted to align it with the center position of the blackbody. The blackbody temperature values are set as T(1), T(2), T(3), T(4), T(5), T(6) respectively. After the temperature is stable, the corresponding infrared energy signals V(1), V(2), V(3), V(4), V(5), V(6) are collected by the infrared temperature measurement module. The curve fitting of the infrared energy signal is performed by the least squares method to obtain the functional relationship between the temperature data and the infrared energy signal: Y(temperature)=A*X^2 + B*X + C, where A, B, and C are the coefficients of the functional formula obtained by the least squares fitting respectively; in actual application, when the infrared module collects the energy signal V(x) above the cooking stove, substituting V(x) into the above functional relationship can accurately calculate the current temperature value above the cooking stove.

4. An infrared temperature measurement method with a smoke stove interlock control function according to claim 2, characterized in that The described range hood control measures include smoke-stove linkage control, and the linkage control process is as follows: Judgment for range hood startup: When the user turns on the stove, it triggers the start of the smoke-stove linkage control process; the infrared temperature sensor collects the temperature data above the stove at a frequency of once per second, the micro-control unit starts to record the temperature data, and calculates the temperature rise amplitude. First, it records the temperature value T1 at the current moment, compares it with the temperature value T0 at the previous moment, and calculates the temperature rise amplitude per minute; if the temperature rise amplitude exceeds the threshold TH1, the micro-control unit judges that the cooking operation that may generate oil fumes has started; at this time, the micro-control unit sends a startup signal to the range hood through the data transmission module. After the signal is relayed by the data transmission unit, the range hood receives the signal, starts up and sets the fan speed to the low-speed operation mode.

5. The infrared temperature measurement method with a smoke stove linkage control function according to claim 2, characterized in that The described range hood control measures include range hood speed adjustment judgment: If the temperature continues to rise and exceeds the threshold TH2, the micro-control unit judges that the oil fume generation amount increases, and sends a signal to the range hood through the data transmission unit to adjust the range hood speed to the medium-speed operation mode; the control signal is also transmitted to the range hood through the communication module of the control device, and after the range hood receives the instruction, it adjusts the fan speed to the parameters corresponding to the medium speed; if the temperature further rises and exceeds the threshold TH3, the micro-control unit will adjust the range hood speed to the high-speed operation mode through the data transmission unit to ensure the timely and effective discharge of a large amount of oil fumes; if the temperature changes sharply within a short period of time, the micro-control unit will immediately increase the speed to the next higher gear to ensure the rapid discharge of oil fumes.

6. The infrared temperature measurement method with a smoke range interlock control function according to claim 2, characterized in that It also includes a safety reminder program: If the temperature exceeds the safety threshold TH5, the micro-control unit not only adjusts the range hood speed to the highest through the data transmission module, but also sends an alarm signal to the user terminal through the data transmission unit to remind the user to pay attention to safety.

7. The infrared temperature measurement method with a smoke stove interlock control function according to claim 2, characterized in that [[ID=!]]It also includes a range hood shutdown program: If the temperature continues to drop below the fifth preset threshold and lasts for a period of time, the micro-control unit sends a signal through the data transmission module to turn off the range hood; the micro-control unit will continuously record the time when the temperature is lower than the fifth preset threshold. When the set time of 5 minutes is reached, it sends a shutdown instruction, which is transmitted to the range hood through the data transmission unit. After the range hood receives the signal, it stops the fan operation, completing the entire smoke-stove linkage process.

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