Intelligent anti-dry-burning method

Abstract

The invention discloses an intelligent dry burning prevention method, and belongs to the technical field of kitchen wares, when a PIR sensor has a trigger signal, an infrared temperature measurement sensor is dormant after measuring the temperature once, the temperature detected by the infrared temperature measurement sensor is T and uploads T to a central control module, the central control module judges whether T is greater than a temperature threshold set by a system, if yes, the infrared temperature measurement sensor is turned on, and if not, the infrared temperature measurement sensor is turned off. And the central control module provides different processing methods according to the temperature range of the T. Through the mode, the intelligent anti-dry-burning monitoring equipment is used for detecting the temperatures of different positions in the pot, so that the accuracy of temperature detection is improved; by collecting the temperature in the pot and setting different temperature threshold values, the multi-level alarm function is achieved, different temperature conditions respond to different levels of alarm modes, feedback is given to a user, the accuracy of temperature detection is improved, meanwhile, the user can be informed of dry burning in time before dry burning of the cooker occurs, the cooker is automatically closed, and the user experience feeling is improved.

Description

Technical Field

[0001] The invention relates to the technical field of kitchenware, and in particular to an intelligent dry-burning prevention method. Background Art

[0002] The main function of the existing kitchen anti-dry burning function is to improve cooking safety and prevent safety hazards such as fire caused by dry burning; the anti-dry burning function monitors the temperature of the pot in real time through a temperature sensor. Once a dry burning situation is detected, the fire will be automatically turned off to avoid the occurrence of fire.

[0003] For example, Chinese patent CN110488696B discloses an intelligent anti-dry burning method and system, which includes the following steps: collecting a state image of a cooking utensil during the cooking process; identifying the state image to obtain attribute information related to the cooking process, and searching a database for dry burning critical state information matching the attribute information based on the identified attribute information; obtaining temperature information of the cooking utensil during the cooking process; and determining whether dry burning occurs in the cooking utensil based on the temperature information and the searched dry burning critical state information.

[0004] However, the technology has the following problems: first, the temperature detection used by the above device is used for temperature measurement and the measurement angle is unique, which cannot guarantee the accuracy of the temperature detection of the temperature device;

[0005] Second, the above-mentioned anti-dry-burn control method uses a single temperature threshold. When the temperature of the pot is higher than the anti-dry-burn temperature threshold, it is judged that dry-burning occurs, which is prone to false judgment of anti-dry-burning;

[0006] Third, the user cannot be notified in time to turn off the stove before the stove starts to dry burn or when it just starts to dry burn, which can easily cause carbonization of food in the pot, making the pot difficult to clean, etc., resulting in a poor user experience.

[0007] Based on this, the present invention designs an intelligent anti-dry burning method to solve the above problems. Summary of the invention

[0008] In view of the above-mentioned shortcomings of the prior art, the present invention provides an intelligent dry burning prevention method.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] An intelligent dry burning prevention method comprises the following steps:

[0011] Step 1: Press the start button, the intelligent anti-dry burning monitoring device starts and executes the temperature measurement mode;

[0012] Step 2: Determine whether the PIR sensor has a trigger signal;

[0013] If not, go back to step 1;

[0014] If yes, execute Step Three;

[0015] Step Three: The PIR sensor wakes up the infrared temperature sensor to measure the temperature once, and then the infrared temperature sensor goes to sleep. The temperature detected by the infrared temperature sensor is T, and it is judged whether T is greater than 100°;

[0016] If T ≤ 100°, after delaying for a1 minutes, return to Step Two;

[0017] If T > 100°, execute Step Four;

[0018] Step Four: Judge whether T is greater than 200°;

[0019] If 100° < T ≤ 200°, delay for a2 minutes and return to Step Three;

[0020] If T > 200°, execute the first-level alarm mode and execute Step Five;

[0021] Step Five: Judge whether T is greater than 240°;

[0022] If 200° < T ≤ 240°, after delaying for a3 minutes, turn off the first-level alarm mode and return to Step Four;

[0023] If T > 240°, wake up the infrared temperature sensor to continuously detect the real-time temperature T and execute Step Six;

[0024] Step Six: Judge whether T is greater than 280°;

[0025] If 240° < T ≤ 280°, return to Step Five and the infrared temperature sensor continuously detects the real-time temperature T;

[0026] If T > 280°, start the second-level alarm mode and then execute Step Seven;

[0027] Step Seven: Judge whether T is greater than 350°;

[0028] If T > 350°, after delaying for a4 minutes, execute Step Eight;

[0029] If T ≤ 350°, return to Step Five;

[0030] Step Eight: Judge whether T is greater than 350°;

[0031] If T > 350°, if the infrared temperature sensor detects that the temperature increase amplitude within the set time X is Q;

[0032] If Q < B, where B is the temperature increase amplitude limit threshold, execute Step Nine;

[0033] If Q ≥ B, execute Step Ten;

[0034] If T≤350°, return to step 5;

[0035] Step 9: Start the third-level alarm mode, and the infrared temperature sensor continues to measure the temperature until T < 280°, then turn off the third-level alarm mode, start the first-level alarm mode, and then return to step 5;

[0036] Step 10: Start the four-level alarm mode and put the infrared temperature sensor into sleep mode.

[0037] Step 11: After the four-level alarm mode is activated, the product will reset until the alarm is canceled by pressing the manual button, and return to step 2 after a delay of 5 minutes.

[0038] Furthermore, a1 is 3, a2 is 2, a3 is 1, a4 is 0.5, and a5 is 10.

[0039] Furthermore, the first-level alarm mode is a slow flashing yellow light;

[0040] The secondary alarm mode is a quick flashing yellow light and a buzzer sounding signal;

[0041] The third-level alarm mode is a fast flashing yellow light and a buzzer sounding signal;

[0042] The fourth-level alarm mode is that the red light flashes quickly, the buzzer emits a sound signal, and the central control module outputs a switch signal to cut off the gas supply to the stove.

[0043] Furthermore, the intelligent anti-dry burning monitoring device includes a mounting frame installed between the range hood and the stove, and the height difference between the mounting frame and the table where the stove is placed ranges from 20 to 40 cm;

[0044] A temperature detection device is installed on the mounting frame. Two mounting grooves are provided at the upper and lower ends of the mounting frame. The two mounting grooves are located on the same vertical center line, and the distance between the two mounting grooves is 20 cm.

[0045] Furthermore, the installation distance between the upper installation slot and the tabletop on which the cooker is placed is in the range of 55-65 cm;

[0046] The installation distance between the installation groove at the lower end and the table top on which the stove is placed is in the range of 35-45 cm.

[0047] Furthermore, when the range hood is a top suction type, the temperature detection device is installed inside the upper mounting slot, and the monitoring angle range of the temperature detection device when it is located at the upper end is 20-40 degrees;

[0048] When the range hood is of the side suction type, the temperature detection device is installed inside the lower mounting slot, and the monitoring angle range of the lower temperature detection device 1 when it is located at the lower end is 40-60 degrees.

[0049] Furthermore, the temperature detection device includes a central control module, a temperature measurement module, a display module, an alarm module, a power module, an opening module, a detection module, a parameter setting module and an outer shell;

[0050] The central control module is electrically connected to a temperature measurement module for detecting real-time temperature, a display module for displaying information, an alarm module for reminding users, a power supply module for powering, a start-up module for starting, a detection module for detecting user activities, and a parameter setting module for setting a temperature alarm threshold;

[0051] The central control module is fixedly installed inside the outer shell, the temperature measurement module is fixedly installed on the lower side of the front end of the outer shell, the display module is fixedly installed in the middle of the front end of the outer shell, a battery compartment is opened in the middle of the rear end of the outer shell, the power module is installed inside the battery compartment, the opening module is installed on the left side of the upper end of the outer shell, the parameter setting module is installed on the right side of the upper end of the outer shell, the alarm module is connected to the outer shell, and the detection module is fixedly installed in the middle of the outer shell and is located above the display module;

[0052] The central control module is connected to the gas source control valve of the cooker by wireless communication;

[0053] The central control module is connected to the main control board of the range hood via wireless communication.

[0054] Furthermore, the temperature measurement module is an infrared temperature measurement sensor, the display module is an LCD display screen, the alarm module includes red and yellow LED lights and a buzzer, and the detection module is a PIR.

[0055] Furthermore, the infrared temperature sensor uploads the detected temperature data information T to the central control module, and the central control module uploads the temperature data information T to the main control board of the range hood, and the main control board of the range hood adjusts the wind speed level according to different preset temperature thresholds:

[0056] The main control board of the range hood is provided with a first temperature threshold T1 and a second temperature threshold T2;

[0057] When T<T1, the main control panel of the range hood adjusts the wind speed to a low gear or puts it in standby mode;

[0058] When T1≤T≤T2, the main control panel of the range hood adjusts the wind speed to the medium gear;

[0059] When T>T2, the main control panel of the range hood adjusts the wind speed to a high level.

[0060] Compared with the prior art, the invention has the following beneficial effects: the intelligent anti-dry-burning monitoring device provided in the invention detects the temperature at different positions in the pot, thereby improving the accuracy of temperature detection;

[0061] The present invention collects the temperature in the pot, sets different temperature thresholds, and performs different processing steps according to different temperature conditions. The present invention has a multi-level alarm function. Different temperature conditions respond to different levels of alarm modes, give users feedback, and improve the accuracy of temperature detection. At the same time, the present invention can promptly notify the user of dry burning before the stove burns dry, automatically shut down the stove, and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0063] Figure 1 A flow chart of an intelligent dry burning prevention method of the present invention;

[0064] Figure 2 This is a schematic diagram of the front installation of the intelligent anti-dry burning monitoring device of the present invention;

[0065] Figure 3 It is a schematic diagram of the side installation of the intelligent anti-dry burning monitoring device of the present invention;

[0066] Figure 4 It is a side view of the intelligent anti-dry burning monitoring device of the present invention;

[0067] Figure 5 It is a front view of the intelligent anti-dry burning monitoring device of the present invention;

[0068] Figure 6 It is a connection block diagram of the intelligent anti-dry burning monitoring system of the present invention.

[0069] The numbers in the figure represent:

[0070] 1. Temperature detection device; 11. Central control module; 12. Temperature measurement module; 13. Display module; 14. Alarm module; 141. Red and yellow LED lights; 142. Buzzer; 15. Power module; 16. Opening module; 17. Detection module; 18. Parameter setting module; 19. Outer shell; 2. Mounting frame; 3. Back panel; 4. Mounting buckle. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0072] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 2 , Figure 3 and Figure 4 , an intelligent anti-dry burning monitoring device, comprising a range hood and a stove, and also comprising a mounting frame 2 installed between the range hood and the stove, wherein the height difference between the mounting frame 2 and the table surface on which the stove is placed is in the range of 20-40 cm;

[0073] The temperature detection device 1 is installed on the mounting frame 2. Two mounting grooves are provided at the upper and lower ends of the mounting frame 2. The two mounting grooves are located on the same vertical center line, and the distance between the two mounting grooves is 20 cm.

[0074] The installation distance between the upper installation groove and the table top on which the stove is placed is in the range of 55-65 cm.

[0075] The installation distance between the installation groove at the lower end and the table top on which the stove is placed is in the range of 35-45 cm.

[0076] When the range hood is a top suction type, the temperature detection device 1 is installed inside the upper mounting slot, and the monitoring angle range of the temperature detection device 1 when it is located at the upper end is 20-40 degrees;

[0077] When the range hood is of the side suction type, the temperature detection device 1 is installed inside the lower mounting groove, and the monitoring angle range of the lower temperature detection device 1 when it is located at the lower end is 40-60 degrees.

[0078] like Figure 2 , Figure 3 As shown, a1 is the monitoring angle of the first detection point of the upper temperature detection device 1, a1 = 30 degrees;

[0079] a2 is the monitoring angle of the first detection point of the lower temperature detection device 1, a2 = 45 degrees;

[0080] The rear end of the temperature detection device 1 is installed with a back plate 3 and a mounting buckle 4;

[0081] The temperature detection device 1 is detachably connected to the back plate 3, and the back plate 3 is fixedly connected to the mounting buckle 4;

[0082] The mounting buckle 4 is detachably connected to the mounting slot.

[0083] The temperature detection device 1 monitors the temperature of different positions in the pot in real time when cooking. If the temperature detection device 1 detects that the temperature in the pot exceeds the set temperature, the temperature detection device 1 determines that the pot is burnt dry, and then alarms to notify the user to pay attention;

[0084] The temperature detection device 1 is detachably connected to the mounting slot on the mounting frame 2 via the mounting buckle 4, which facilitates the disassembly and replacement of the temperature detection device 1 and the replacement of the battery of the temperature detection device 1.

[0085] Embodiment 2: In some embodiments, please refer to the drawings of the specification Figure 2 , Figure 3 , Figure 5 and Figure 6 , an anti-dry burning intelligent monitoring system, comprising a range hood and a stove, and also comprising a mounting frame 2 installed between the range hood and the stove, wherein the height difference between the mounting frame 2 and the table surface on which the stove is placed is in the range of 20-40 cm;

[0086] The temperature detection device 1 is installed on the mounting frame 2. Two mounting grooves are provided at the upper and lower ends of the mounting frame 2. The two mounting grooves are located on the same vertical center line, and the distance between the two mounting grooves is 20 cm.

[0087] The installation distance between the upper installation groove and the table top on which the stove is placed is in the range of 55-65 cm.

[0088] The installation distance between the installation groove at the lower end and the table top on which the stove is placed is in the range of 35-45 cm.

[0089] When the range hood is a top suction type, the temperature detection device 1 is installed inside the upper mounting slot, and the monitoring angle range of the temperature detection device 1 when it is located at the upper end is 20-40 degrees;

[0090] When the range hood is of the side suction type, the temperature detection device 1 is installed inside the lower mounting groove, and the monitoring angle range of the lower temperature detection device 1 when it is located at the lower end is 40-60 degrees.

[0091] The temperature detection device 1 includes a central control module 11, a temperature measurement module 12, a display module 13, an alarm module 14, a power module 15, an opening module 16, a detection module 17, a parameter setting module 18 and an outer shell 19;

[0092] The central control module 11 is electrically connected to a temperature measuring module 12 for detecting real-time temperature, a display module 13 for displaying information, an alarm module 14 for reminding users, a power supply module 15 for powering, a start-up module 16 for starting, a detection module 17 for detecting user activities, and a parameter setting module 18 for setting a temperature alarm threshold;

[0093] The central control module 11 is fixedly installed inside the outer shell 19, the temperature measurement module 12 is fixedly installed on the lower side of the front end of the outer shell 19, the display module 13 is fixedly installed in the middle of the front end of the outer shell 19, a battery compartment is opened in the middle of the rear end of the outer shell 19, the power module 15 is installed inside the battery compartment, the opening module 16 is installed on the upper left side of the outer shell 19, the parameter setting module 18 is installed on the upper right side of the outer shell 19, the alarm module 14 is connected to the outer shell 19, and the detection module 17 is fixedly installed in the middle of the outer shell 19 and is located above the display module 13.

[0094] The central control module 11 is connected to the gas source control valve of the cooker by wireless communication;

[0095] The central control module 11 is connected to the main control board of the range hood via wireless communication.

[0096] The central control module 11 is a low-power MCU.

[0097] The temperature measurement module 12 uses an infrared temperature measurement sensor, the model of which is HT-MDB-M temperature measurement module. The infrared temperature measurement sensor uploads the detected temperature to the central control module 11, and the central control module 11 uploads the temperature information to the main control board of the range hood. The main control board of the range hood adjusts the wind speed level according to different preset temperature thresholds:

[0098] The main control board of the range hood is provided with a first temperature threshold T1 and a second temperature threshold T2;

[0099] When T<T1, the main control panel of the range hood adjusts the wind speed to a low gear or puts it in standby mode;

[0100] When T1≤T≤T2, the main control panel of the range hood adjusts the wind speed to the medium gear;

[0101] When T>T2, the main control panel of the range hood adjusts the wind speed to a high level.

[0102] For example, when the temperature is below 50℃, the range hood maintains low wind speed operation or is in standby mode; when the temperature is between 50℃ and 100℃, the range hood speed is adjusted to a medium level; when the temperature exceeds 100℃, the range hood speed is adjusted to a high level.

[0103] Therefore, when the range hood main control board receives the temperature information uploaded by the central control module 11, the wind speed can be adjusted to the corresponding gear.

[0104] The display module 13 is an LCD display screen.

[0105] The alarm module 14 includes a red and yellow LED light 141 and a buzzer 142, both of which are electrically connected to the central control module 11. The red and yellow LED light 141 is fixedly installed on the upper right side of the outer shell 19 and the red and yellow LED light 141 is located at the upper end of the display module 13, and the buzzer 142 is fixedly installed on the right side of the outer shell 19.

[0106] The power module 15 uses AA batteries.

[0107] The detection module 17 is a PIR (Passive Infrared Sensor).

[0108] The opening module 16 and the parameter setting module 18 are both buttons, and a plurality of the parameter setting modules 18 are provided at equal intervals. The parameter setting modules 18 include a time setting button, a temperature setting button, a timing setting button, and a volume setting button.

[0109] For different types of range hoods, the installation position of the temperature detection device 1 is different. The temperature detection device 1 monitors the temperature of different positions in the pot in real time when cooking. The temperature measurement module 12 detects the temperature in the pot in real time when cooking and uploads it to the central control module 11, and sends the real-time temperature information to the display module 13 for display, which can indirectly remind the user to master the timing of putting vegetables in the pot, turning over, adding water, and taking out of the pot; the central control module 11 also uploads the temperature information to the range hood main control board, so when the range hood main control board receives the temperature information uploaded by the central control module 11, it can adjust the wind speed to the corresponding gear, thereby adjusting the size of the wind speed;

[0110] If the central control module 11 detects that the temperature in the pot exceeds the set temperature, the central control module 11 determines that the pot is burnt dry. The central control module 11 first controls the alarm module 14 to alarm and notify the user to pay attention. Then the central control module 11 closes the fire source through the gas source control valve of the stove to avoid the occurrence of fire.

[0111] If the detection module 17 detects that the user has left, and uploads the absence time to the central control module 11, the central control module 11 will sound an alarm through the alarm module 14 to remind the user if it determines that the user's absence time exceeds the threshold set in the system;

[0112] The temperature measuring module 12 realizes real-time monitoring of the temperature of the same detection point in the pot from different angles when cooking, and can control the wind speed of the range hood according to the temperature of the pot. When the user leaves, the temperature measuring module 12 detects the dry pot state and alarms to prevent accidents.

[0113] Embodiment 3: In some embodiments, please refer to the drawings of the specification Figure 1, an intelligent anti-dry burning method, comprising the following steps:

[0114] Step 1: Press the start button, and the intelligent anti-dry burning monitoring device is turned on to execute the temperature measurement mode;

[0115] Step 2: Determine whether the PIR sensor has a trigger signal;

[0116] If not, return to Step 1;

[0117] If so, execute Step 3;

[0118] Step 3: The PIR sensor wakes up the infrared temperature sensor to measure the temperature once, and then the infrared temperature sensor goes to sleep. The temperature detected by the infrared temperature sensor is T, and it is judged whether T is greater than 100°;

[0119] If T≤100°, after delaying for a1 minutes, return to Step 2;

[0120] Preferably, a1 is 3.

[0121] If T>100°, execute Step 4;

[0122] Step 4: Judge whether T is greater than 200°;

[0123] If 100°<T≤200°, delay for a2 minutes and return to Step 3;

[0124] Preferably, a2 is 2.

[0125] If T>200°, execute the first-level alarm mode and execute Step 5;

[0126] Preferably, the first-level alarm mode is a slow flashing yellow light.

[0127] Step 5: Judge whether T is greater than 240°;

[0128] If 200°<T≤240°, after delaying for a3 minutes, turn off the first-level alarm mode and return to Step 4;

[0129] Preferably, a3 is 1.

[0130] If T>240°, wake up the infrared temperature sensor to continuously detect the real-time temperature T and execute Step 6;

[0131] Step 6: Judge whether T is greater than 280°;

[0132] If 240°<T≤280°, return to Step 5 and the infrared temperature sensor continuously detects the real-time temperature T;

[0133] If T>280°, start the second-level alarm mode and then execute Step 7;

[0134] Preferably, the secondary alarm mode is that the yellow light flashes quickly and the buzzer 142 emits a sound signal.

[0135] Step 7: Determine whether T is greater than 350°;

[0136] If T>350°, execute step 8 after a delay of 4 minutes;

[0137] Preferably, a4 is 0.5.

[0138] If T≤350°, return to step 5;

[0139] Step 8: Determine whether T is greater than 350°;

[0140] If T>350°, if the infrared temperature sensor detects that the temperature rise within the set time X is Q;

[0141] If Q<B, B is the temperature rise limit threshold, then execute step nine;

[0142] If Q ≥ B, execute step 10;

[0143] If T≤350°, return to step 5;

[0144] Step 9: Start the third-level alarm mode, and the infrared temperature sensor continues to measure the temperature until T < 280°, then turn off the third-level alarm mode, start the first-level alarm mode, and then return to step 5;

[0145] Preferably, the third-level alarm mode is that the yellow light flashes quickly and the buzzer 142 emits a sound signal;

[0146] Step 10: Start the four-level alarm mode and put the infrared temperature sensor into sleep mode.

[0147] Preferably, the fourth-level alarm mode is that the red light flashes quickly, the buzzer 142 emits a sound signal, and the gas source switch signal of the stove is cut off;

[0148] Step 11: After the four-level alarm mode is activated, the product will reset until the alarm is canceled by pressing the manual button, and return to step 2 after a delay of 5 minutes.

[0149] Preferably, a5 is 10.

[0150] The present invention can install the intelligent anti-dry-burn monitoring device at different positions according to different types of range hoods to improve the applicability of detection. The intelligent anti-dry-burn monitoring device monitors the temperature of different positions in the pot in real time when cooking. If the intelligent anti-dry-burn monitoring device detects that the temperature in the pot is the same and exceeds the set temperature, the infrared temperature measuring device determines that the pot is dry-burned, and then the red and yellow LED lights 141 and the buzzer 142 alarm to notify the user to pay attention.

[0151] When the PIR sensor receives a trigger signal, the infrared temperature sensor goes into sleep mode after measuring the temperature once. The temperature detected by the infrared temperature sensor is T and T is uploaded to the central control module 11. The central control module 11 determines whether T is greater than the temperature threshold set by the system. The central control module 11 provides different processing methods according to the temperature range in which T is located.

[0152] The present invention collects the temperature in the pot, sets different temperature thresholds, and performs different processing steps according to different temperature conditions. The present invention has a multi-level alarm function. Different temperature conditions respond to different levels of alarm modes, give users feedback, and improve the accuracy of temperature detection. At the same time, the present invention can promptly notify the user of dry burning before the stove burns dry, automatically shut down the stove, and improve the user experience.

[0153] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent method for preventing dry burning, characterized in that: It includes the following steps: Step 1: Press the start button to turn on the intelligent dry - burning prevention monitoring device and execute the temperature - measuring mode; Step 2: Determine whether the PIR sensor has a trigger signal; If not, return to Step 1; If yes, execute Step 3; Step 3: The PIR sensor wakes up the infrared temperature - measuring sensor to measure the temperature once, and then the infrared temperature - measuring sensor goes to sleep. The temperature detected by the infrared temperature - measuring sensor is T, and it is judged whether T is greater than 100°; If T≤100°, after delaying for a1 minutes, return to Step 2; If T>100°, execute Step 4; Step 4: Judge whether T is greater than 200°; If 100°<T≤200°, delay for a2 minutes and return to Step 3; If T>200°, execute the first - level alarm mode and execute Step 5; Step 5: Judge whether T is greater than 240°; If 200°<T≤240°, after delaying for a3 minutes, turn off the first - level alarm mode and return to Step 4; If T>240°, wake up the infrared temperature - measuring sensor to continuously detect the real - time temperature T and execute Step 6; Step 6: Judge whether T is greater than 280°; If 240°<T≤280°, return to Step 5 and the infrared temperature - measuring sensor continuously detects the real - time temperature T; If T>280°, start the second - level alarm mode, and then execute Step 7; Step 7: Judge whether T is greater than 350°; If T>350°, after delaying for a4 minutes, execute Step 8; If T≤350°, return to Step 5; Step 8: Judge whether T is greater than 350°; If T>350°, if the infrared temperature - measuring sensor detects that the temperature - rising amplitude within the set time X is Q; If Q<B, where B is the temperature - rising amplitude limit threshold, execute Step 9; If Q≥B, execute Step 10; If T≤350°, return to Step 5; Step 9: Start the third - level alarm mode, and the infrared temperature - measuring sensor continuously measures the temperature until T<280°, turn off the third - level alarm mode, start the first - level alarm mode, and then return to Step 5; Step 10: Start the fourth - level alarm mode and put the infrared temperature - measuring sensor to sleep; Step 11: After the fourth - level alarm mode is started, until the alarm is cancelled by the manual button and the product is reset, after delaying for a5 minutes, return to Step 2.

2. The intelligent dry burning prevention method according to claim 1, characterized in that: a1 is 3, a2 is 2, a3 is 1, a4 is 0.5, and a5 is 10.

3. The intelligent dry burning prevention method according to claim 2, characterized in that: The first - level alarm mode is a slow flashing yellow light; The second - level alarm mode is a fast flashing yellow light, and the buzzer (142) emits a sound signal; The third - level alarm mode is a fast flashing yellow light, and the buzzer (142) emits a sound signal; The fourth - level alarm mode is a fast flashing red light, the buzzer (142) emits a sound signal, and the central control module outputs a signal to cut off the gas source switch of the cooking stove.

4. The intelligent dry burning prevention method according to claim 3, characterized in that: The intelligent dry - burning prevention monitoring device includes a mounting bracket (2) installed between the range hood and the cooking stove. The height difference between the mounting bracket (2) and the tabletop where the cooking stove is placed ranges from 20 - 40 cm; A temperature - detection device (1) is installed on the mounting bracket (2). Two mounting slots are opened at the upper and lower ends of the mounting bracket (2). The two mounting slots are on the same vertical center line, and the distance between the two mounting slots is 20 cm.

5. The intelligent dry burning prevention method according to claim 4, characterized in that: The installation distance between the upper mounting slot and the tabletop where the cooking stove is placed ranges from 55 - 65 cm; The installation distance between the installation groove at the lower end and the table top on which the stove is placed is in the range of 35-45 cm.

6. The intelligent dry burning prevention method according to claim 5, characterized in that: When the range hood is of the top suction type, the temperature detection device (1) is installed inside the upper mounting slot, and the monitoring angle range of the temperature detection device (1) when located at the upper end is 20-40 degrees; When the range hood is of the side suction type, the temperature detection device (1) is installed inside the lower installation slot, and the monitoring angle range of the lower temperature detection device (1) when it is located at the lower end is 40-60 degrees.

7. The intelligent dry burning prevention method according to claim 6, characterized in that: The temperature detection device (1) comprises a central control module (11), a temperature measurement module (12), a display module (13), an alarm module (14), a power module (15), an opening module (16), a detection module (17), a parameter setting module (18) and an outer shell (19); The central control module (11) is electrically connected to a temperature measurement module (12) for detecting real-time temperature, a display module (13) for displaying information, an alarm module (14) for reminding a user, a power supply module (15) for supplying power, a start-up module (16) for starting, a detection module (17) for detecting user activities, and a parameter setting module (18) for setting a temperature alarm threshold; The central control module (11) is fixedly mounted inside the outer shell (19), the temperature measurement module (12) is fixedly mounted on the lower side of the front end of the outer shell (19), the display module (13) is fixedly mounted on the middle of the front end of the outer shell (19), a battery compartment is provided in the middle of the rear end of the outer shell (19), the power module (15) is mounted inside the battery compartment, the opening module (16) is mounted on the left side of the upper end of the outer shell (19), the parameter setting module (18) is mounted on the right side of the upper end of the outer shell (19), the alarm module (14) is connected to the outer shell (19), and the detection module (17) is fixedly mounted on the middle of the outer shell (19) and is located above the display module (13); The central control module (11) is connected to the gas source control valve of the cooker by wireless communication; The central control module (11) is wirelessly connected to the main control board of the range hood.

8. The intelligent dry burning prevention method according to claim 7, characterized in that: The temperature measurement module (12) is an infrared temperature measurement sensor, the display module (13) is an LCD display screen, the alarm module (14) includes a red and yellow LED light (141) and a buzzer (142), and the detection module (17) is a PIR.

9. The intelligent dry burning prevention method according to claim 8, characterized in that: The infrared temperature sensor uploads the detected temperature data information T to the central control module 11, and the central control module 11 uploads the temperature data information T to the main control board of the range hood. The main control board of the range hood adjusts the wind speed level according to different preset temperature thresholds: The main control board of the range hood is provided with a first temperature threshold T1 and a second temperature threshold T2; When T<T1, the main control panel of the range hood adjusts the wind speed to a low gear or puts it in standby mode; When T1≤T≤T2, the main control panel of the range hood adjusts the wind speed to the medium gear; When T>T2, the main control panel of the range hood adjusts the wind speed to a high level.

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