Kitchen burnt taste intelligent control system and working method

Abstract

The invention provides a kitchen burnt taste intelligent control system and a working method.The kitchen burnt taste intelligent control system is composed of three parts including a gas stove temperature sensing knob, a burnt taste multi-sensing collector and a mobile phone terminal, the gas stove temperature sensing knob transmits collected pot body temperature signals to the burnt taste multi-sensing collector, and the mobile phone terminal transmits the collected pot body temperature signals to the gas stove temperature sensing knob; the burnt taste multi-sensor collector analyzes and discriminates an uploaded pot body temperature signal and a signal collected by the burnt taste multi-sensor collector, sends a response command to the gas stove temperature sensing knob and uploads the signal to the mobile phone terminal, and the mobile phone terminal receives the uploaded information and issues an instruction to the burnt taste multi-sensor collector through the cloud server. According to the invention, the problem of closing the gas in a burnt state is solved, and a safe and delicious intelligent cooking effect is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of kitchen intelligent equipment, and in particular relates to a kitchen burnt odor intelligent control system and a working method. Background Art

[0002] Gas stoves have entered thousands of households. While cooking delicious food with a gas pot brings convenience to people, it also brings safety hazards.

[0003] Young people, lacking experience and poor control of the heat, often end up burning their food when cooking in gas cookers. Burnt food can also easily produce carcinogens, such as benzopyrene and heterocyclic amines. These are representative carcinogens that have a significant impact on the body. Long-term, high-dose ingestion can potentially lead to malignant diseases such as lung cancer, breast cancer, and bladder cancer.

[0004] Elderly people using natural gas at home often burn delicious food due to their diminished perception and reaction abilities. They can also pass burnt food to children, posing health risks to three generations of a family. Sometimes, this even results in burnt pots and pans, leading to kitchen fires. According to fire department statistics, over 50% of household fires are caused by careless users forgetting to turn off the stove, resulting in burnt food and ignition. This can turn a happy family into a tragic tragedy.

[0005] In order to avoid accidents such as fires caused by human negligence, Haier has installed an intelligent temperature sensor on the stove to monitor the temperature of the bottom of the pot. When the temperature of the bottom of the pot is found to be greater than 298℃, the gas stove will be turned off and the gas will be cut off to prevent accidents caused by users forgetting to turn off the fire when going out.

[0006] However, the risk of burnt food causing cancer for three generations of a family urgently requires a solution to make people's lives healthier and safer.

[0007] Technical solution of prior art 1 Jiang Yun of China Resources (Group) Co., Ltd. and Chen Min of BYD Co., Ltd. jointly developed the "Kitchen Gas Safety Intelligent Control System", which can realize functions such as "turn off the fire and close the valve", "remote one-button cut-off" and "real-time monitoring of gas safety". The principle of its "turn off the fire and close the valve" is to close the gas supply valve by detecting the valve angle. The schematic diagram is shown below. Figure 1 Its "remote supervision" principle is to set the solenoid valve's default normally open time to 3 hours (users can also set the normally open time directly on the APP according to their needs). When the timeout expires, it will automatically close remotely or remind you to close.

[0008] Disadvantages of the prior art 1: 1. It is impossible to monitor the burnt state of food during cooking; 2. The gas stove needs to be modified, which is costly; 3. Due to the high cost of replacing stoves, the safety of most users who have not replaced their stoves cannot be guaranteed.

[0009] Technical solution of existing technology 2 Guo Jun and others from Jinan Hong Kong and China Gas Co., Ltd. and Pan Liang and others from Shanghai Feiao Gas Equipment Co., Ltd. jointly developed a "safe kitchen system based on infrared grating and infrared thermal imaging technology." Through infrared thermal imaging to prevent dry burning remote monitoring and gas leak alarm, it can be linked to smart gas meters, such as Figure 2 It can detect tiny gas leaks and excessively high stove dry-burning temperatures, identify these two types of safety hazards, and implement remote monitoring or automatically shut down the gas meter to avoid dangerous situations.

[0010] Disadvantages of the second prior art 1. Although it can detect small gas leaks and avoid dry burning, it cannot monitor food burning during cooking.

[0011] 2. It is necessary to change the gas meter and add a dry burning monitor, which is costly; 3. Replacing the gas meter is also subject to gas safety regulations, and the safety of the majority of users who have not replaced the meter cannot be guaranteed.

[0012] Technical solution of existing technology three Zhang Qiang, Kang Yi and others from Chengdu Homesafe Technology Co., Ltd. developed the "Internet of Things and AI" and "Gas & Dry Burning" safety monitoring system. The system consists of an AI gas safety valve and a thermal imaging dry burning monitor. Figure 3 As shown in the figure, it links the safety valve with the gas stove, and the thermal imaging dry-burn monitor with the gas safety valve on the stovetop. When the thermal imaging dry-burn monitor automatically identifies safety conditions such as the open flame being left unattended for too long or the dry-burn reaching a dangerous threshold, it takes proactive safety measures by automatically shutting off the gas safety valve and issuing an alarm. This system enables remote monitoring and alarms, effectively preventing gas leaks and identifying and controlling kitchen fires caused by forgotten flames, ensuring personal and residential safety in countless households.

[0013] Disadvantages of existing technology three 1. Although it can more effectively monitor safety hazards such as open flames away from people, dry burning, and gas leaks, it cannot monitor food burnt during cooking.

[0014] 2. The installation position of its AI gas safety valve must be on the stove, which affects the appearance of the stove.

[0015] Technical solution of existing technology 4 Zhang Tianxiang from Xidian University and Tan Qionghua from Anhui University of Science and Technology developed a "kitchen environment monitoring system". By monitoring the ambient temperature, smoke, flames and human bodies, it can comprehensively judge the safety of the kitchen. Figure 4 It can remotely collect ambient temperature, smoke, and flame data, monitor human behavior, and determine whether there is a fire or gas leak in the kitchen, thereby achieving kitchen safety supervision.

[0016] Disadvantages of the existing technology 4 1. Although it can more effectively detect safety hazards such as open flames, fires, and gas leaks, it cannot monitor food burnt during cooking.

[0017] 2. If the user wants to cook special dishes such as stir-frying peppers or pancakes, smoke will also occur, which will lead to misjudgment; 3. Using server AI calculations, if the server costs are borne by the user, the cost is high; 4. Using server AI computing, if a public server is set up, the server requirements are higher and the cost per user is also high. Summary of the Invention

[0018] The purpose of the present invention is to solve the defects of the above-mentioned prior art and provide a kitchen burnt smell intelligent control system and working method.

[0019] The present invention adopts the following technical solutions: The intelligent kitchen burnt odor control system consists of three components: a gas stove temperature sensor, a burnt odor multi-sensor collector, and a mobile app mini-program. The gas stove temperature sensor transmits the collected pot temperature signal to the burnt odor multi-sensor collector. The burnt odor multi-sensor collector analyzes and identifies the uploaded pot temperature signal and its own collected signal, sends a response command to the gas stove temperature sensor, and uploads the signal to the mobile app mini-program. The mobile app mini-program receives the uploaded information and sends a command to the burnt odor multi-sensor collector via a network server, which is then executed by the gas stove temperature sensor.

[0020] The gas temperature sensor knob consists of a micro camera, infrared sensor, motor, MCU, battery, and power chip. The battery powers the power chip and MUC. The micro camera and infrared sensor collect real-time signals and transmit them to the MCU, which controls the motor. The MCU processes and determines the temperature information and sends the signal to the burnt odor multi-sensor collector via the Bluetooth communication antenna.

[0021] The burnt odor multi-sensor collector includes a human infrared sensor, an AI vision sensor, a communication antenna, a burnt odor collector, an MCU and storage processing unit, a power supply chip, and a battery system. The AC power supply powers the power supply chip, which houses the MCU and storage unit. The human infrared sensor, AI vision sensor, and burnt odor collector collect signals and feed them into the MCU and storage unit in real time. The MCU and storage unit then calculate and process the collected signals and send them to a mobile app via a Wi-Fi communication antenna. Alternatively, the MCU and storage unit receive commands from the mobile app and transmit them to the gas temperature sensor via a Bluetooth communication antenna.

[0022] The working method of the kitchen burnt smell intelligent control system includes: Step 1. The human infrared sensor and human activity AI status information of the burnt smell multi-sensory collector detect that someone is participating in the cooking process; Step 2. The gas stove temperature knob detects that the pot temperature is greater than a threshold value and transmits the temperature information to the burnt odor multi-sensor collector, thereby determining that the cooking state is in progress; Step 3. When frying peppers or making pancakes, the burnt smell multi-sensor collector receives the physical quantity of the burnt smell. If the burnt smell concentration is ≥ level 2 or ≥ level 3, the burnt smell multi-sensor collector only emits an audible and visual alarm. When the burnt smell concentration is greater than level 3, the burnt smell multi-sensor collector sends a signal to the gas stove temperature sensing knob, causing the gas stove temperature sensing knob to be turned down, and the gas flow rate to decrease until the burnt smell concentration is less than level 3.

[0023] The burnt smell concentration is defined as: Level 1: Below the concentration that can be perceived by the human sense of smell.

[0024] Level 3: Higher than the human olfactory tolerance concentration, most people find it unpleasant! Level 2: Given the range between levels 1 and 3 perception.

[0025] Step 3 also includes uploading signals through the burnt smell multi-sensor collector, the mobile phone receives the information uploaded by the burnt smell multi-sensor collector, and checks the corresponding message through the built-in app program.

[0026] Furthermore, if the gas stove temperature sensing knob fails to start automatically, a red indicator light will be lit, and if the burnt smell multi-sensor collector fails to start automatically, an audible and visual alarm will be issued.

[0027] Furthermore, the mobile phone sends a shutdown command to the temperature sensing knob of the gas stove through the burnt smell multi-sensor to turn off the gas stove.

[0028] When the burnt smell multi-sensor collector determines that there is no one, there is a burnt smell, gas leakage or abnormally high temperature of the pot, the burnt smell multi-sensor collector sends a message to turn off the gas hood temperature knob.

[0029] Furthermore, the built-in app on the mobile phone receives the information uploaded by the burnt smell multi-sensory collector (including cloud short videos), and sends a shutdown command to the burnt smell multi-sensory collector according to user needs.

[0030] Beneficial effects of the present invention: In addition to providing daily gas safety monitoring and control, this invention also effectively solves the problem of unintentional burning of food. It achieves safe and delicious intelligent cooking results, allowing even users with limited cooking skills to easily prepare healthy meals. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the background technology kitchen gas safety intelligent control system structure; Figure 2 Schematic diagram of a safe kitchen system based on infrared grating and infrared thermal imaging technology; Figure 3 It is a schematic diagram of the structure of three systems of the prior art; Figure 4 This is a structural diagram of a kitchen environment monitoring system in the background technology; Figure 5 A schematic diagram of the system of the present invention; Figure 6 A diagram showing the data interaction relationship between the three components of the present invention; Figure 7 It is a block diagram of the system operation relationship of the present invention; Figure 8 This is a diagram showing the operation logic of the gas stove knob assembly of the present invention; Figure 9 A diagram showing the relationship between energy and signal transmission of the gas stove knob assembly of the present invention; Figure 10 This is a diagram showing the relationship between energy and signal transmission of the burnt smell multi-sensory collector assembly of the present invention; Figure 11 This is a logic diagram of the operation of the burnt smell multi-sensor collector assembly of the present invention; Figure 12 This is a diagram showing the logical relationship between the operation of the mobile app mini-program of the present invention; Figure 13 It is a diagram of the linkage relationship between the three components of the present invention.

[0032] In the picture: 1-gas stove temperature knob, 2-burnt smell multi-sensor collector, 3-mobile app applet. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention are described clearly and completely below. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0034] like Figure 5 As shown in FIG, the kitchen burnt smell intelligent control system of the present invention comprises three parts, namely, the gas stove temperature sensing knob 1, the burnt smell multi-sensor collector 2, and the mobile phone app applet 3. Figure 6 As shown, the temperature information of the gas stove temperature knob 1 is transmitted to the burnt smell multi-sensor collector 2, and the burnt smell multi-sensor collector 2 is uploaded to the mobile phone app applet 3. At the same time, the instructions issued by the mobile phone app applet 3 can be transmitted to the gas stove temperature knob 1 through the burnt smell multi-sensor collector 2.

[0035] like Figure 7 As shown, the burnt odor multi-sensor collector primarily collects information about burnt odor, food temperature in the pot, infrared presence of humans in the kitchen, AI status of human activity in the kitchen, and food temperature in the pot on the stovetop. This information is processed and identified before being wirelessly transmitted to the mobile app. If the stove knob needs to be turned off, the mobile app receives the "off" command from the applet and sends it to the gas stove temperature knob 1 via the burnt odor multi-sensor collector 2.

[0036] The gas stove temperature sensing knob 1 of the present invention is improved on the basis of the switch knob of the gas stove. The original gas stove knob shell is replaced with the present knob, and the burnt smell multi-sensor collector 2 is used to turn off the stove switch and collect the ambient temperature of the pot on the stove. Its working logic is as follows: Figure 8 shown.

[0037] Working mode of gas stove temperature knob 1: The gas stove temperature sensing knob 1 is powered on and detects the temperature; Scenario 1: If the pot temperature is higher than the threshold (including the threshold), the gas stove temperature sensor knob 1 sends the temperature to the burnt smell multi-sensor collector 2 via Bluetooth, and determines whether it is higher than room temperature and has been for more than 30 minutes; Scenario 2: If the pot temperature is lower than the threshold, the gas stove temperature sensor knob 1 sends the temperature to the burnt odor multi-sensor collector 2 via Bluetooth, and determines whether it has been above room temperature for more than 30 minutes. If the temperature is higher than room temperature for more than 30 minutes, the gas stove temperature sensing knob 1 will go into hibernation (sleep) and the indicator light will be on; if the temperature is higher than room temperature for no more than 30 minutes, it will continue to listen for instructions.

[0038] like Figure 9As shown, the gas stove temperature sensor knob 1 of the present invention serves as both the end effector and the pot temperature sensor on the stovetop. When active, it receives shutdown commands from the burnt odor multi-sensor sensor 2 at any time and executes the shutdown action. If it detects no abnormalities in the stovetop temperature for a long period of time, it enters a sleep state. In this sleep state, only the temperature sensing function is retained; all other functions are disabled. It is powered by a battery and issues an alarm when the battery is low.

[0039] The gas stove temperature knob 1 primarily consists of a micro camera, infrared sensor, MCU, battery, power chip, motor, connection mechanism (located between the motor and the stove knob), and antenna. The battery powers the power chip and MUC. The micro camera and infrared sensor collect real-time signals and transmit them to the MCU, which controls the motor. The MCU processes and determines the temperature information and sends the signal to the burnt odor multi-sensor collector 2 via the Wi-Fi communication antenna.

[0040] The burnt smell multi-sensor collector 2 of the present invention includes a human infrared sensor, an AI visual sensor, an antenna, a burnt smell collector, an MCU and a storage processing unit, a power chip, a power supply and other components. The burnt smell multi-sensor collector is composed of Figure 10 As shown in the figure, the power input supplies power to the power chip. The burnt odor multi-sensor collector contains an MCU and a storage unit. The human infrared sensor, AI vision sensor, and burnt odor collector send collected signals to the MCU and storage unit in real time. The MCU and storage unit calculate and process the collected signals and then send them to the mobile app mini-program 3 via the Wi-Fi communication antenna.

[0041] The burnt smell multi-sensor collector 2 of the present invention is the central host of the present invention. In addition to completing calculations, storing, issuing decision instructions, and uploading key data to the cloud server, it also has an AI visual collection sensor, a human infrared perception sensor and a burnt smell gas collector.

[0042] like Figure 11 As shown, the working method of the burnt smell multi-sensor collector 2 is as follows: Receive the physical quantity of burnt smell, physical quantity of food temperature, physical quantity of human infrared, physical quantity of human activity AI status, physical quantity of pot temperature, The human infrared sensor and AI visual acquisition sensor detect whether a person is present. If the detection result is negative, the burnt odor collector detects a burnt odor, gas leakage, or abnormally high temperature of the pot through the gas stove temperature knob, and sends a shutdown command. It also determines whether the wifi connection is connected. If the result of "human presence detection" is yes (the human infrared sensor and AI visual acquisition sensor determine that there is a person), the cooking status is detected (the cooking status is determined by judging that the pot temperature is higher than the threshold by the gas stove temperature knob); If the test result is no, the mobile server requires shutdown or the burnt smell is ≥ level 1, a shutdown command is sent via Bluetooth and it is determined whether Wi-Fi is connected; If the "cooking status" test result is yes, then check whether the burnt smell concentration is ≥ level 3. If the test result is yes, directly send a Bluetooth command to turn down the smell until it is less than level 3, and determine whether to connect to WiFi; If the "burnt smell concentration ≥ level 3" test result is no, then check whether the burnt smell concentration is ≥ level 2. If the test result is yes, an audible and visual alarm will be issued, and it will be determined whether the Wi-Fi is connected; If the "burnt smell concentration ≥ level 2" test result is no, then check whether the burnt smell concentration is ≥ level 1. If the test result is yes, a voice prompt will be issued and it will be determined whether the wifi is connected.

[0043] If the "burnt smell concentration ≥ level 1" test result is negative, the system will directly determine whether to connect to Wi-Fi. If the result is positive, the system will send data to the mobile app, receive cloud instructions, and return to the starting state. If the result is negative, the system will directly return to the starting state.

[0044] The mobile app of the present invention can not only remotely receive the information fed back by the burnt smell multi-sensory collector, but also remotely view the real-time video information. Figure 12 shown.

[0045] The working process of the mobile app applet is as follows: first open the mobile app and determine whether the network is connected. If not, remind the user to connect to the network and determine again whether the network is connected; if it is, determine whether there is notification permission. If the judgment result is yes, directly determine the user's needs; if the "notification permission" judgment result is no, remind the user to turn it on, and then judge the permission. If the "judgment permission" judgment result is no, issue an abnormal notification, read the status cloud data, and then associate the cloud short video with the read status and send it to the user; if the "judgment permission" judgment result is yes, send instructions according to user needs. If there is no instruction, read the status cloud data, and then associate the cloud short video with the read status and send it to the user.

[0046] The mobile app can not only remotely view the cloud server data, but also send remote control commands to the cloud server for storage. The storage status of the command is "not executed". When the burnt smell multi-sensor collector reads the "not executed" shutdown command on the cloud server, it will Figure 7 After the burnt smell multi-sensor collector completes the shutdown command on the cloud server, it will feedback an "executed" storage status to the cloud server and return a short video of the execution.

[0047] If the burnt smell multi-sensor collector is not connected to the remote network, it will run offline by ignoring the data status of the cloud server. Therefore, in the offline state, the kitchen burnt smell intelligent control system does not have the function of data status filing and remote access.

[0048] The present invention also provides a solution that omits the mobile phone app applet, retaining only the gas stove temperature sensing knob and the burnt smell multi-sensor collector, which can also complete the burnt smell detection function.

[0049] like Figure 13 As shown, the system operates as follows: It first performs a power-on self-test. If the self-test fails, the burnt odor multi-sensor collector will sound an audible and visual alarm. If successful, it begins operation and collects physical measurements of burnt odor, food temperature, human infrared radiation, human activity AI status, and pot temperature. It then checks for human presence. If the test result is negative (e.g., a burnt odor, gas leak, or abnormally high pot temperature), a shutdown command is sent via Bluetooth, and the system returns to its initial state. If the human presence test is positive, the cooking status is checked. If the "cooking status" detection result is no, the server requires shutdown or the burnt smell concentration is ≥ level 1, then Bluetooth sends a shutdown command and returns to the starting working state; if the "cooking status" detection result is yes, then it detects whether the burnt smell concentration is ≥ level 3. If the detection result is yes, then Bluetooth directly sends an adjustment command and returns to the starting working state; if the "burnt smell concentration ≥ level 3" detection result is no, then it detects whether the burnt smell concentration is ≥ level 2. If the detection result is yes, an audible and visual alarm is issued and returns to the starting working state; if the "burnt smell concentration ≥ level 2" detection result is no, then it directly returns to the "starting working" state.

[0050] The working method of the kitchen burnt smell intelligent control system includes: Step 1. The human infrared sensor and human activity AI status information of the burnt smell multi-sensory collector detect that someone is participating in the cooking process; Step 2. The gas stove temperature knob detects that the pot temperature is greater than a threshold value and transmits the temperature information to the burnt odor multi-sensor collector, thereby determining that the cooking state is in progress; Step 3. When frying peppers or making pancakes, the burnt smell multi-sensor collector receives the physical quantity of the burnt smell. If the burnt smell concentration is ≥ level 2 or ≥ level 3, the burnt smell multi-sensor collector only emits an audible and visual alarm. When the burnt smell concentration is greater than level 3, the burnt smell multi-sensor collector sends a signal to the gas stove temperature sensing knob, causing the gas stove temperature sensing knob to be turned down, and the gas flow rate to decrease until the burnt smell concentration is less than level 3.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. The kitchen burnt smell intelligent control system is characterized by: It consists of three parts: the gas stove temperature knob, the burnt smell multi-sensor collector and the mobile phone. The gas stove temperature knob transmits the collected pot temperature signal to the burnt smell multi-sensor collector. The burnt smell multi-sensor collector analyzes and identifies the uploaded pot temperature signal and its own collected signal, and sends a response command to the gas stove temperature knob, and uploads the signal to the mobile phone. The mobile phone receives the uploaded information and sends instructions to the burnt smell multi-sensor collector through the network server, which is executed through the gas stove temperature knob.

2. The kitchen burnt smell intelligent control system according to claim 1, characterized in that: in, The gas temperature knob consists of a micro camera, infrared sensor, motor, MCU, battery, and power chip. The battery supplies power to the power chip and MUC. The micro camera and infrared sensor collect signals in real time and transmit them to the MCU. The MCU controls the movement of the motor. The MCU processes and judges the temperature information and sends signals through the Bluetooth communication antenna.

3. The kitchen burnt smell intelligent control system according to claim 1, characterized in that: The burnt smell multi-sensor collector includes a human infrared perception sensor, an AI visual acquisition sensor, a communication antenna, a burnt smell collector, an MCU and a storage processing unit, a power chip, and a battery system. The AC power supply supplies power to the power chip, which has an MCU and a storage unit. The human infrared perception sensor, the AI ​​visual acquisition sensor, and the burnt smell collector send the collected signals to the MCU and the storage unit in real time. The MCU and the storage unit calculate and process the collected signals and send them to the mobile phone through the WiFi communication antenna, or receive instructions issued by the mobile phone, and transmit the instructions to the gas temperature sensing knob through the Bluetooth communication antenna.

4. The working method of the kitchen burnt smell intelligent control system is characterized by: include: Step 1. The human infrared sensor and human activity AI status information of the burnt smell multi-sensor collector detect that someone is participating in the cooking process; Step 2. The gas stove temperature knob detects that the pot temperature is greater than a threshold value and transmits the temperature information to the burnt odor multi-sensor collector, thereby determining that the cooking state is in progress; Step 3. When frying peppers or making pancakes, the burnt smell multi-sensor odor collector receives the physical quantity of the burnt smell. If the burnt smell concentration is greater than or equal to level 2 or greater than or equal to level 3, the burnt smell multi-sensor collector only emits an audible and visual alarm. When the burnt smell concentration is greater than level 3, the burnt smell multi-sensor collector sends a signal to the gas stove temperature sensing knob, causing the gas stove temperature sensing knob to be turned down, and the gas flow rate to decrease until the burnt smell concentration is less than level 3.

5. The method according to claim 4, characterized in that Burnt odor concentration is defined as: Level 1: concentration lower than most people’s olfactory perception; Level 3: Higher than the human olfactory tolerance concentration: most people feel it is unpleasant; Level 2: Given the range between levels 1 and 3 perception.

6. The method according to claim 4, characterized in that It also includes uploading signals through the burnt smell multi-sensor collector, receiving the information uploaded by the burnt smell multi-sensor collector on the mobile phone, and viewing the corresponding messages through the built-in app program.

7. The method according to claim 4, characterized in that It also includes when the burnt smell multi-sensor collector determines that there is no one, but there is a burnt smell, gas leakage or abnormally high temperature burnt smell of the pot, the multi-sensor collector sends information to turn off the gas hood temperature sensing knob.

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