CN110296445A - Gas-cooker intelligent control system - Google Patents

Abstract

The invention discloses an intelligent control system for a gas stove. The system includes a sensor module, a solenoid valve control module, a pulse ignition module, a flame detection module, a position detection module, an automatic gas regulating valve module, a range hood module, a voice recognition module, and a liquid crystal Display module and network communication module. The present invention establishes an intelligent gas stove control system based on technologies such as human-computer interaction, circuit self-inspection and circuit automatic control, which uses voice recognition and database processing methods and combines other technical supports of hardware and software , safe and reliable, small footprint, clean and environmentally friendly, intelligent and convenient, can achieve the purpose of safe, convenient and intelligent use of gas stoves.

Description

Gas stove intelligent control system

technical field

The invention mainly relates to technologies such as human-computer interaction, circuit self-inspection and circuit automatic control, and belongs to the technical field of household gas equipment safety.

Background technique

Existing household intelligent safety gas stoves have indeed realized some automatic control, but have not really realized intelligent control. In the process of cooking, most of the work still depends on direct human participation, which does not really liberate users from the tedious work. For a person who often cooks, cooking is basically a dull and repetitive job, even boring. In addition, in the design of smart and safe gas stoves for households, the special situation of household power outages is often overlooked. Once the power is cut off, the gas stove hardware will be paralyzed, which is likely to cause unnecessary danger. With the re-maturity of artificial intelligence and related technologies, household smart gas stove equipment has entered a truly intelligent era.

The intelligent gas stove control system of the present invention provides people with safety and convenience, and at the same time can provide people with some gourmet plans and cooking skills through network equipment, which is beneficial for people to make healthy and delicious delicacies.

Contents of the invention

Compared with today's smart gas stove, the smart gas stove of the present invention has the following advantages:

1) The range hood of this smart gas stove can be controlled automatically or manually, effectively ensuring the normal operation of the range hood.

2) The control of the firepower can be completed by the automatic gas regulating valve (composed of a progressive motor, a gas valve, and an angle controller), which can save the user from controlling the firepower during the cooking process and bring great convenience to cooking.

3) The intelligent gas cooker is embedded with a dual-control module of buttons and voice recognition, which effectively improves the operability and grade of the product.

4) Safety and stability are the design focus of the system. To this end, multiple security measures have been adopted to avoid potential safety hazards.

5) A backup battery is embedded in the gas stove equipment to ensure the normal operation of the intelligent gas stove control system in case of a power outage at home.

6) Repeatable programming. The user can reprogram the program to form a new cooking program, and transmit the data to the STM32 microcontroller through the Bluetooth on the mobile phone or computer.

7) Automatic timing cooking, users can choose the appropriate cooking mode or set the cooking time they need according to their own needs.

The purpose of the present invention is to establish an intelligent gas stove control system based on technologies such as human-computer interaction, circuit self-inspection and circuit automatic control. It uses voice recognition and database processing methods and combines other hardware and software. Technical support, such as GMS module, display, capacitive keyboard, etc. It is safe and reliable, occupies a small area, is clean and environmentally friendly, intelligent and convenient, and can realize the purpose of using the gas stove safely, conveniently and intelligently. There are 1 to 5 numbers in the button area of the gas stove, which respectively represent: stir-frying fire; frying fire; steaming fire; slow-cooking fire; soup-making fire. The CPU module is used to process data, manage the database, and realize the storage and reading of the database; the GMS module is used to send a notification message to the owner when the gas leaks; the WIFI module is used to connect to the network, which is convenient for connecting to the database to read data; The basic operation of the gas stove and the selection of the working mode. The voice recognition broadcast module broadcasts abnormal voice information and selects the receiving working mode. The display is used to display timing time, mode selection, abnormal information, etc. The use of batteries is to prevent unnecessary safety hazards caused by household power outages. Controller Hardware Design

The design philosophy of the system hardware is to strive for simple structure, reliable operation, and easy promotion, so as to adapt to the harsh working conditions on the gas cooker and anti-interference ability. For this reason, the design of the entire controller is centered around the single-chip microcomputer with the characteristics of powerful function, high reliability, small size and low price.

The technical solution adopted in the present invention is an intelligent control system for gas stoves, which includes a sensor module, a solenoid valve control module, a pulse ignition module, a flame detection module, a position detection module, an automatic gas regulating valve module, a range hood module, and voice recognition module, liquid crystal display module and network communication module. The overall block diagram of the hardware structure of the gas stove intelligent control system is shown in Figure 1. The sensor module, solenoid valve control module, pulse ignition module, flame detection module, position detection module, automatic gas regulating valve module, range hood module, voice recognition module, liquid crystal display module and network communication module are all connected with the single chip microcomputer.

The single-chip microcomputer model is stm32f407 of punctual atom, which has the advantages of low voltage, low power consumption, high performance, and strong anti-interference. In addition, the microcontroller is integrated with a timer, ADC and sufficient I/O resources.

Sensor module: The gas sensor monitors the gas concentration in the room. When the gas sensor detects that the gas density exceeds the standard in the air, it sends an interrupt signal to the CPU, and the CPU generates a control signal to drive the GSM module to send a gas leakage alarm signal to the user's mobile phone and drive the relay. Control the speaker to automatically alarm, and push the function of the external solenoid valve to cut off the gas channel, and at the same time connect the power of the external range hood to make it run until the gas density in the air is lower than the set value, the gas sensor sends a signal to the CPU to stop the range hood machine working signal, the range hood stops working. The temperature sensor measures the temperature of the pot body. When a dry pot is detected, an interrupt signal is sent to the CPU, and the CPU generates a control signal to drive an external automatic alarm. The relay controls the speaker to automatically alarm, and pushes the solenoid valve to cut off the gas channel and stop the gas stove from operating on the pot. Bottom heating.

Solenoid valve control module: The central processing unit controlling each module is a single-chip microcomputer, and the control signal of the I/O output of the single-chip microcomputer is 0 or 1. The control method is simple and efficient, but there are safety risks. That is, the I/O port may continuously output 0 or 1 signals due to some kind of interference or internal breakdown, so there is a high possibility of gas leakage on the gas stove. The following adjustments have been made on the solenoid valve drive circuit. On the one hand, both ends of the solenoid valve are controlled separately, and the probability of two failures at the same time is very low; The frequency is output, so as to avoid mistakenly opening the solenoid valve. The schematic diagram of solenoid valve drive is shown in Figure 2:

Flame detection module: the flame detection is mainly through the LM258 operational amplifier, which amplifies the signal of the thermocouple by 100 times. The single-chip microcomputer determines the flame combustion state of the gas stove by detecting the voltage signal change of CY1. The schematic diagram is shown in Figure 3:

Position detection module: on the one hand: detect the rotation position of the regulating valve through a high-reliability potentiometer; on the other hand, through the built-in zero position stopper on the valve body, detect the zero position signal and judge whether to turn to zero position. By detecting the AD value of the signal during the rotation of the progressive motor, and according to different AD values corresponding to different rotation angles, the rotation of the progressive motor is determined.

Pulse ignition module: The ignition method adopts traditional high-voltage pulse. The high-voltage ignition device is composed of an oscillating circuit, a boost circuit and a discharge electrode, and its circuit is shown in Figure 4. When igniting, the Pluse terminal inputs a high level, at this time Q5 is turned on, and the ignition circuit starts to work. After the high-frequency oscillating circuit is boosted once by the step-up transformer T4, a pulse signal with an amplitude of about 60V is generated on the secondary side of T4, which is rectified by a diode After that, a stable DC voltage is obtained. The DC voltage charges the capacitor C14 through the resistor R20, and at the same time stores energy in the large capacitor C12. When the voltage on C14 rises to about 30-35V, the bidirectional diode conducts, triggering the conduction of the thyristor SCR, and the energy on C12 releases energy to the primary coil of the secondary step-up transformer T through the bidirectional thyristor SCR, so that at T8 The secondary generates a high voltage above 12KV, which can break through a certain thickness of air, thereby completing the ignition of the high voltage pulse. Capacitor C12 is recharged after being discharged, thereby forming a series of continuous discharge ignitions.

Range hood module: The range hood adopts high-efficiency DC brushless motor, software control adopts sine wave control, SVPWM drive control completes the design, and realizes the comprehensive index of high performance of the motor; the frequency conversion controller is electrically connected with the wireless transceiver module, and starts automatically The range hood works, and the range hood realizes stepless speed regulation according to the firepower of the gas cooker, and realizes linkage through the wireless module to adjust the motor speed to achieve more energy-saving purposes. The brushed DC motor maintains the good dynamic and static speed regulation characteristics of the traditional DC motor. Range hood BLDC has functions such as overvoltage, undervoltage, overcurrent protection, fault detection, man-machine interface, and automatic recovery of overheating protection. This device uses the intelligent power module FSBS5CH60 as the brushless DC motor power drive module.

In order to realize the linkage function of range hood and gas stove, a wireless communication module based on NRF24L01 is used to connect with STM32 microcontroller through SPI interface. When the system is initialized, it detects whether the device is in a connectable state. If the device can be connected, it is in the data receiving state. If the power is turned on and the device is turned on, the unpacked data will be used as the input of the command state machine, and the manual speed regulation of the range hood will be blocked. If the communication device cannot be connected or the communication signal is lost, the system will automatically switch to the manual speed adjustment mode and will not throw a cable machine error. Instructions are received and run in a non-real-time area at intervals of 1 frame. Status checks run at 1s intervals. Figure 5 is the non-real-time area of the range hood and gas stove wireless communication interval. The flow chart of the linkage working mode of the sensor module, the GMS module and the range hood is shown in Figure 6.

Voice recognition module: The voice recognition module is LD3320Board, which supports SPI interface and parallel non-specific voice recognition module, onboard microphone and active crystal oscillator, which can realize voice recognition and man-machine dialogue functions. Its features: 1. High accuracy and practical speech recognition effect; 2. Non-specific speech recognition technology: no need for users to conduct recording training; 3. Dynamically editable recognition keyword list: only need to convert the recognized keywords into strings The form is transmitted into the chip, which can take effect immediately in the next recognition. For example, in the programming of STM32 and other MCUs, the user simply sets the registers of the chip and dynamically transfers the content of the identification keywords such as "Hello" to the chip, and the chip can recognize the keywords set in this way. 4 Support users to freely edit 50 keywords: at the same time, it can be identified in 50 keywords. We can set some voice recognition working modules and voice recognition timing modes of some gas cookers as needed. Working modes such as stir-frying fire, frying fire, steaming fire, slow cooker fire, soup fire, etc.; timing modes such as 3 minutes, 5 minutes, 10 minutes, 15 minutes, 20 minutes, etc. When the system reaches the set time, the voice broadcasts the current working status and asks for the next working status. If there is an air leak or a dry pot, the system will broadcast its working status and the cause of the alarm while sending out an alarm signal. The reported system working status is output to the power amplifier through the digital-to-analog conversion port DAC2 of SPCE061A, as shown in Figure 7.

Automatic gas regulating valve module: The automatic gas regulating valve module is driven by a motor to rotate the valve body to control the size of the firepower. The control circuit is composed of a DC motor and a triode, which are connected into two positive and negative loops. The control circuit is connected to the outside world by two ports. By controlling the relative magnitude of the two ends of the circuit, the direction of current flow in the circuit is controlled, and then the rotation of the motor is operated. direction. When the DC motor rotates in the forward direction, the rate of feeding natural gas decreases and the firepower weakens. The angle sensor installed on the valve body can feed back the rotation angle of the valve body to the single-chip microcomputer, thereby controlling the rotation direction of the motor, so as to precisely control the rotation angle of the valve body, thereby realizing precise firepower control. After the user selects a program to start cooking, the temperature sensor will detect the temperature of the pot at a certain frequency and send it to the controller through Bluetooth, and then compare it with the temperature in the selected program at this time, and then control the temperature of the flow valve through the stepping motor. Rotation angle control, finally realize the change of required firepower. The control principle diagram of the gas channel is shown in Figure 8.

Liquid crystal display module: In order to meet the needs of automatic timing cooking, after the fire power setting is completed, the system starts timing, and the liquid crystal displays the current fire power of the gas stove and the cooking countdown. When the cooking end time is reached, the flame-out circuit controls the valve to close, and the buzzer sends out an alarm signal. During the operation of the gas stove, the single-chip microcomputer sends the data received by the sensor to the LCD display, and the LCD displays data such as cooking time and the firepower of the gas stove, and broadcasts through voice.

Network communication module: This system uses the Bluetooth wireless module to communicate with the mobile phone for data communication, and can send the status data of the gas stove in the single-chip microcomputer to the professional cooking APP of the mobile phone through Bluetooth communication. The cooking time and size of the gas stove, and then send the setting data to the single-chip microcomputer. The single-chip microcomputer adjusts the firepower and cooking time of the gas stove according to the data set by the mobile phone. The user uses the mobile phone cooking app to remotely control and set the gas stove.

The design of the smart gas stove is mainly based on the controller as the core, to realize the flameout protection of the gas stove in case of an accident, to record the measurement of the rotation angle of the flow valve by the angle sensor and the temperature sensor to detect the temperature of the pot at a certain frequency, and to automatically control the flow valve The rotation angle, the input and output of collected data, and the writing of data through mobile phones and other functions. In order to realize the intelligent memory function of the gas cooker, a memory module is added to the controller. During the cooking process, the user can select different cooking programs by touching the display device. After the user selects the cooking program, the temperature sensor will detect the temperature of the pot at a certain frequency and transmit it to the controller through Bluetooth, and then communicate with the selected program. The temperature at this time is compared, and then by improving the machine to control the rotation angle of the flow valve, the required heat change is finally realized. In addition, various adjustment data on the gas stove will be recorded and transmitted to a dedicated cooking APP via Bluetooth. Users can modify their own cooking programs through their mobile phones.

Description of drawings

Figure 1 is the overall block diagram of the system hardware module structure.

Figure 2 Schematic diagram of solenoid valve drive.

Figure 3 flame detection circuit diagram.

Figure 4 pulse ignition circuit diagram.

Fig. 5 Flow chart of wireless communication between range hood and gas stove.

Figure 6 Range hood, GMS module, gas sensor module flow chart.

Figure 7 voice output circuit.

Fig. 8 Schematic diagram of gas channel control.

Fig. 9 is the flow chart of master control operation.

Detailed ways

The main flow chart of the intelligent gas stove control system is shown in Figure 9.

In the non-cooking situation, the intelligent gas stove control system is always in the power-on state of standby, and the gas density exceeding standard detection system in the kitchen is in working state at this moment. When the system detects that the gas density exceeds the standard in the air, the gas sensor sends an interrupt signal to the CPU, and the CPU generates a control signal to drive the GMS module to send a gas leakage alarm signal to the user's mobile phone, and at the same time drive the relay to control the speaker to automatically alarm, and push the function of the external electromagnetic valve, cut off the gas channel, and at the same time turn on the power of the external range hood to make it work, until the gas density in the air is lower than the set value, the range hood will stop working. Its working principle diagram is shown in Figure 6. When cooking in the kitchen, when the user turns on the switch on the control panel of the gas stove, the range hood will automatically work, and after 15 seconds, it will detect whether there is a flame in the gas stove. If there is no flame, an abnormal message will be broadcast and the range hood will be turned off; There is a flame, and the hood is in normal working condition. In addition, when the sensor module detects that the electromagnetic valve is closed, the smoking machine will automatically shut down after working for a certain period of time.

After the gas cooker control panel switch is turned on, the intelligent gas cooker control system automatically checks whether each system of the gas cooker is working normally. If the detection fails, the gas stove system will enter the standby protection state, and at the same time display the abnormal information of the gas stove on the display and make a voice broadcast, and automatically shut down after a period of time. If the test is passed, the igniter is turned on, the solenoid valve is opened, and at the same time, it is checked whether the flame is burning normally; if it is not burning normally, it enters the cycle of opening the igniter and the solenoid valve, and when the timing reaches 8S, the flame is still not burning normally, and the igniter and solenoid valve are automatically closed , enter the standby state, the display will display abnormal information and make a voice broadcast, and it will automatically shut down after a certain period of time.

After detecting that the flame is burning normally, turn off the igniter and turn on the reception of the thermocouple signal. When the food in the pot, especially the soup, overflows, the gas flame goes out, the thermoelectricity is cold, and the thermal electromotive force disappears, so that the iron core of the safety valve is closed due to the action of the spring, so that the gas supply is automatically interrupted, and the intelligent gas stove control system enters the standby mode at the same time status, the display will display abnormal information and make a voice broadcast.

After detecting that the flame is burning normally and the igniter is turned off, the owner will be prompted by voice to select the appropriate working mode of the gas stove. After selecting the appropriate working mode, the intelligent gas stove control system can be connected to the home network through the WIFI module, and enter the corresponding network through the Ethernet. Read the information related to recipes and cooking in the database of your computer, and broadcast it through the voice system; or you can choose your favorite voice program.

When the working mode is about to finish timing, the voice broadcast system will prompt the user with relevant information and proceed to the next working mode. When there is no button or voice reply, it will enter the voice reminder state loop, after a certain period of time, the solenoid valve will be automatically closed, the smart gas stove control system will enter the standby state, and the display will display abnormal information and record it. When the button or voice reply is received, the user will automatically enter the next working mode after processing the relevant work. The gas cooker closes the solenoid valve and enters the standby state until the button is turned off and the voice reply is turned off.

Claims (7)

1. Intelligent gas stove control system, characterized in that the system includes a sensor module, a solenoid valve control module, a pulse ignition module, a flame detection module, a position detection module, an automatic gas regulating valve module, a range hood module, and a voice recognition module , liquid crystal display module and network communication module; sensor module, solenoid valve control module, pulse ignition module, flame detection module, position detection module, automatic gas regulating valve module, range hood module, voice recognition module, liquid crystal display module and network communication The modules are all connected with the single chip microcomputer; The MCU model is the stm32F407 of the punctual atom. The MCU is integrated with a timer, ADC and sufficient I/O resources; Sensor module: The gas sensor monitors the gas concentration in the room. When the gas sensor detects that the gas density exceeds the standard in the air, it sends an interrupt signal to the CPU, and the CPU generates a control signal to drive the GSM module to send a gas leakage alarm signal to the user's mobile phone and drive the relay. Control the speaker to automatically alarm, and push the function of the external solenoid valve to cut off the gas channel, and at the same time connect the power of the external range hood to make it run until the gas density in the air is lower than the set value, the gas sensor sends a signal to the CPU to stop the range hood When the temperature sensor measures the temperature of the pot body and detects the dry pot phenomenon, it sends an interrupt signal to the CPU, and the CPU generates a control signal to drive the external automatic alarm, the relay controls the speaker to automatically alarm, and drives the electromagnetic The valve cuts off the gas channel and stops the gas stove from heating the bottom of the pot; Solenoid valve control module: the central processor that controls each module is a single-chip microcomputer, and the control signal output by the I/O of the single-chip microcomputer is 0 or 1. The control method is simple and efficient, but there are safety risks; that is, the I/O port may be damaged due to some interference or The internal breakdown causes continuous output of 0 or 1 signal, which is very likely to cause gas leakage on the gas stove; the following adjustments have been made on the solenoid valve drive circuit; on the one hand, both ends of the solenoid valve are controlled separately, and the two circuits At the same time, the probability of failure is very low; on the other hand, square wave control is used on one of the roads, so that it is impossible to maintain the original frequency for output when the I/O port fails, so as to avoid opening the solenoid valve by mistake; Flame detection module: the flame detection is through the LM258 operational amplifier, which amplifies the signal of the thermocouple by 100 times, and the single-chip microcomputer determines the flame combustion state of the gas stove by detecting the change of the voltage signal of CY1; Position detection module: on the one hand: detect the rotation position of the regulating valve through a high-reliability potentiometer; During the process, the signal AD value is detected, and according to different AD values corresponding to different rotation angles, the rotation of the progressive motor is judged; Pulse ignition module: the ignition method adopts high-voltage pulse; the high-voltage ignition device is composed of an oscillating circuit, a booster circuit and a discharge electrode; when igniting, the Pluse terminal inputs a high level, at this time Q5 is turned on, the ignition circuit starts to work, and the high-frequency oscillating circuit passes through After the step-up transformer T4 is boosted once, a pulse signal with an amplitude of about 60V is generated on the secondary side of T4, and after being rectified by a diode, a stable DC voltage is obtained; the DC voltage charges the capacitor C14 through the resistor R20, and at the same time, on the large capacitor C12 Store energy; when the voltage on C14 rises to about 30-35V, the bidirectional diode conducts, triggering the conduction of the thyristor SCR, and the energy on C12 releases energy to the primary coil of the secondary step-up transformer T through the bidirectional thyristor SCR, In this way, a high voltage above 12KV is generated on the secondary side of T8, which can penetrate a certain thickness of air, thereby completing the ignition of the high voltage pulse; the capacitor C12 is recharged after discharge, thereby forming a series of continuous discharge ignition; Range hood module: The range hood adopts high-efficiency DC brushless motor, software control adopts sine wave control, SVPWM drive control completes the design, and realizes the comprehensive index of high performance of the motor; the frequency conversion controller is electrically connected with the wireless transceiver module, and starts automatically The range hood works, and the range hood realizes stepless speed regulation according to the firepower of the gas cooker, and realizes linkage through the wireless module to adjust the motor speed; Use the wireless communication module based on NRF24L01 to connect with the STM32 single-chip microcomputer through the SPI interface; check whether the device is in the connectable state during initialization; if the device is connectable, it is in the data receiving state; The data will be used as the input of the command state machine, and the manual speed regulation of the range hood will be blocked; if the communication device cannot be connected or the communication signal is lost, the system will automatically switch to the manual speed regulation mode, and no cable machine error will be thrown; Instruction receiving runs in a non-real-time area at intervals of 1 frame; status detection runs at intervals of 1 second; Speech recognition module: The choice of speech recognition module is LD3320 Board, which supports SPI interface and parallel non-specific speech recognition module, onboard microphone and active crystal oscillator; Automatic gas regulating valve module: The automatic gas regulating valve module is driven by a motor to rotate the valve body to control the size of the firepower; the control circuit is composed of a DC motor and a triode, connected into two positive and negative circuits, and the control circuit is connected to the outside by two ports. Control the flow direction of the current in the circuit by controlling the relative magnitude of the levels at both ends, and then operate the rotation direction of the motor; when the DC motor rotates forward, the angle sensor installed on the valve body can feed back the rotation angle of the valve body to the single-chip microcomputer, In order to control the rotation direction of the motor so as to precisely control the rotation angle of the valve body, thereby realizing precise firepower control; after the user selects a program to start cooking, the temperature sensor will detect the temperature of the pot at a certain frequency and transmit it to the The controller, then compares with the temperature at this time in the selected program, and then controls the rotation angle of the flow valve through the stepping motor, and finally realizes the change of the required firepower; Liquid crystal display module: In order to meet the needs of automatic timing cooking, after the firepower setting is completed, the system starts timing, and the liquid crystal displays the current firepower of the gas stove and the cooking countdown; when the cooking end time is reached, the flameout circuit controls the valve to close, and the buzzer sounds Alarm signal; during the operation of the gas stove, the single-chip microcomputer sends the data received by the sensor to the LCD screen, and the LCD screen displays data such as cooking time and the firepower of the gas stove, and broadcasts through voice; Network communication module: use the Bluetooth wireless module to communicate with the mobile phone, and send the status data of the gas stove in the single-chip microcomputer to the professional cooking APP of the mobile phone through the Bluetooth communication. Time and size, and then send the setting data to the single-chip microcomputer, the single-chip microcomputer adjusts the firepower and cooking time of the gas stove according to the data set by the mobile phone, and the user uses the mobile phone cooking APP to remotely control and set the gas stove. 2. The gas stove intelligent control system according to claim 1, characterized in that: the intelligent power module FSBS5CH60 is selected as the brushless DC motor power drive module. 3. The gas stove intelligent control system according to claim 1, characterized in that: when the system detects that the gas density exceeds the standard in the air, the gas sensor sends an interrupt signal to the CPU, and the CPU generates a control signal to drive the GMS module to send a message to the user. The mobile phone sends a gas leakage alarm signal, and at the same time drives the relay to control the speaker to automatically alarm, and pushes the function of the external solenoid valve to cut off the gas channel, and at the same time connects the power supply of the external range hood to make it work until the gas density in the air is lower than the set value When cooking in the kitchen, when the user turns on the switch on the control panel of the gas stove, the range hood will automatically work. After 15 seconds, it will detect whether there is a flame in the gas stove. If there is no flame, the voice broadcast is abnormal. information and turn off the range hood; if there is a flame, the hood is in normal working condition; in addition, when the sensor module detects that the solenoid valve is closed, the hood will automatically shut down after working for a certain period of time. 4. The gas stove intelligent control system according to claim 1, characterized in that: after the gas stove control panel switch is turned on, the intelligent gas stove control system automatically checks whether each system of the gas stove is working normally; if the detection fails, the gas stove The stove system will enter the standby protection state, and at the same time display the abnormal information of the gas stove on the display and make a voice broadcast, and automatically shut down after a period of time; Combustion, enter the cycle of opening the igniter and solenoid valve. When the timing reaches 8 seconds, the flame is still not normal. The igniter and solenoid valve will be automatically closed, and enter the standby state. The display will display abnormal information and make a voice broadcast, and it will automatically shut down after a certain period of time . 5. The intelligent gas stove control system according to claim 1, characterized in that: after the normal combustion of the flame is detected, the igniter is turned off, and the thermocouple signal reception is turned on; when the food in the pot, especially the soup overflows, , causing the gas flame to go out, the thermoelectricity meets cold, and the thermal electromotive force disappears, so that the iron core of the safety valve is closed due to the action of the spring, causing the gas supply to be automatically interrupted. . 6. The gas stove intelligent control system according to claim 1, characterized in that: after the normal combustion of the flame is detected and the igniter is turned off, the voice prompts the owner to select a suitable working mode of the gas stove, and after selecting the suitable working mode, the intelligent The chemical gas stove control system can be connected to the home network through the WIFI module, enter the corresponding database through the Ethernet, read information related to recipes and cooking, and broadcast through the voice system; or you can choose your favorite voice program. 7. The gas stove intelligent control system according to claim 1, characterized in that: when the working mode is about to be finished, the voice broadcast system prompts the user for relevant information and proceeds to the next working mode; when there is no button or voice reply, enter the voice The reminder state is cycled. After a certain period of time, the solenoid valve will be automatically closed, the intelligent gas stove control system will enter the standby state, and the display will display and record the abnormal information; when the button or voice reply is received, the user will automatically enter the next work after processing the relevant work. mode; the gas cooker turns off the solenoid valve and enters the standby state until the button is turned off and the voice reply is turned off.