Household gas cooker and system for intelligent kitchen system

Abstract

The utility model relates to the technical field of internet of things, in particular to a household gas cooker and system for an intelligent kitchen system, which comprises a control circuit in the gas cooker, the control circuit comprises a cooker controller and a communication module, the communication module is in communication connection with the cooker controller, and the communication module is connected with the control circuit. And the wireless control module is used for outputting a wireless control signal received from the outside to the cooker controller, and the cooker controller closes the flame of the cooker according to the wireless control signal. Through the communication module, the control circuit in the gas cooker automatically obtains the alarm information, and automatic shutdown of the gas cooker can be realized according to the received control signal, so that the use safety of the gas cooker is improved, and dangerous conditions are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of Internet of Things, in particular to a household gas cooker and a system for a smart kitchen system. Background Art

[0002] Smoke sensors are installed on existing kitchen gas meters to detect the content of carbon monoxide or methane. If the concentration of carbon monoxide or methane exceeds the standard, an alarm will be sounded. However, there may be no one at home, and even if an alarm is sounded locally, the danger cannot be stopped immediately. Moreover, even if someone is there locally, it is not appropriate to manually process the alarm information because the inhalation of carbon monoxide or methane can cause suffocation or poisoning. Therefore, there is a conception of uploading the data of the excess detected by the smoke sensor to the cloud or wirelessly sending it to the remote control terminal through a wireless communication module. The cloud or remote control terminal can then perform remote control based on the received excess data, and realize intelligent control based on the carbon monoxide or methane concentration to shut down the gas meter and gas equipment to minimize the occurrence of hazards. In this way, the dangers caused by excessive carbon monoxide or methane concentrations can be avoided in time, and the risks caused by manual operation can also be reduced.

[0003] To realize the above concept, one problem that needs to be solved is that the gas equipment needs to have the function of receiving control signals from the cloud or remote control terminal. Therefore, it is necessary to improve the existing gas equipment so that it can meet the needs of remote intelligent notification. Utility Model Content

[0004] The purpose of the invention of the utility model is to improve the household gas stove in view of the above concept, so that the household gas stove can receive control signals from the cloud or a remote control terminal, and turn off the flame of the household gas stove when the carbon monoxide or methane concentration exceeds the standard. Therefore, a household gas stove and system for a smart kitchen system are proposed.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A household gas stove for a smart kitchen system includes a control circuit in the gas stove, wherein the control circuit includes a stove controller and a communication module, the communication module is communicatively connected to the stove controller, and the communication module is used to output a wireless control signal received from the outside to the stove controller, and the stove controller turns off the stove flame according to the wireless control signal.

[0007] As a preferred solution, the communication module is one of the 2G, 3G, 4G or 5G communication modes.

[0008] As a preferred solution, the communication module is a NB-loT communication module.

[0009] As a preferred solution, the input end of the stove controller is connected to the communication module, the output end of the stove controller is connected to the input end of the gas valve drive circuit, and the output end of the gas valve drive circuit is used to control the valve switch.

[0010] As a preferred solution, the gas valve driving circuit includes:

[0011] The first pin of the output terminal XS8 of the gas valve driving circuit is grounded through a resistor R55, and the first pin of the output terminal XS8 is also connected to a resistor R47, the other end of the resistor R47 is connected to the negative input terminal of the operational amplifier D6A, and the other end of the resistor R47 is also grounded through a capacitor C28; the second pin of the output terminal XS8 is connected to the collector of the PNP transistor V37, the emitter of the transistor V37 is connected to the +24V voltage, the collector of the transistor V37 is also grounded through a diode V39, the cathode of the diode is connected to the collector of the transistor V37, a resistor R51 is connected between the base of the transistor V37 and +24V, the base of the transistor V37 is also connected to the collector of the NPN transistor V40 through a series resistor R56R8, and the emitter of the transistor V40 is grounded; the emitter of the transistor V40 is connected to the output terminal of the operational amplifier D6A, and a resistor R52 is connected between the positive input terminal and the output of the operational amplifier D6A. The output end of the operational amplifier D6A is connected to a resistor R62, the other end of the resistor R62 is connected to a +5V power supply, the positive input end of the operational amplifier D6A is connected in series with a resistor R58, and the positive input end of the operational amplifier D6A is connected in parallel with a capacitor C32.

[0012] As a preferred solution, the stove controller and the communication module are installed at the bottom of the stove body, and the stove controller and the communication module are close to the gas valve.

[0013] Based on the same concept, a household gas cooker system for a smart kitchen system is also proposed, which uses any of the household gas cookers for a smart kitchen system described above, and also includes an alarm and a control background.

[0014] The alarm is used to collect gas concentration data and transmit the gas concentration data to the control background;

[0015] The communication module obtains the control signal from the control background, and the communication module is used to send the control signal to the stove controller, and the stove controller turns off the stove flame after receiving the control signal.

[0016] As a preferred solution, the alarm includes an alarm communication module and an alarm controller.

[0017] The alarm controller sends the collected gas concentration data to the control background through the alarm communication module.

[0018] As a preferred solution, the alarm controller adopts a CO / CH4 composite concentration detection alarm of model JTM-AEC2368N.

[0019] As a preferred solution, the alarm communication module adopts an NB-loT communication module.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0021] A communication module is added to the household gas stove, so that the household gas stove can receive remote control signals through the communication module and can cooperate with remote control instructions to perform shutdown operations. When the carbon monoxide or methane in the kitchen exceeds the standard, the improved household gas stove for the smart kitchen system can receive the remote control signal and automatically shut down the stove flame according to the remote control signal to avoid the expansion of the harm. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a household gas cooker for a smart kitchen system in Example 1;

[0023] Figure 2 is a functional block diagram of the Quectel BC95 chip in Example 1;

[0024] Figure 3 is the gas valve driving circuit diagram in Example 1;

[0025] Figure 4 It is a household gas stove system for a smart kitchen system in Example 2. DETAILED DESCRIPTION

[0026] The utility model is described in detail below in conjunction with the accompanying drawings.

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] Example 1

[0029] A household gas cooker for a smart kitchen system, such as Figure 1As shown, it includes a gas stove body and a control circuit in the gas stove. A burner for burning natural gas or liquefied petroleum gas is installed on the gas stove body. A valve for controlling the input of natural gas or liquefied petroleum gas into the stove is provided on the stove. The switch of the valve is controlled by the control circuit. The control circuit includes a stove controller and a communication module. The communication module is communicatively connected with the stove controller. The communication module is used to output a wireless control signal received from the outside to the stove controller. The stove controller turns off the flame of the stove burner according to the wireless control signal.

[0030] For example, the control background sends a low level "0" wirelessly. The low level "0" means that the flame of the stove burner needs to be turned off. The communication module on the gas stove receives the low level "0" signal wirelessly, and then transmits the low level "0" signal to the stove controller. The stove controller outputs a low level "0" to the gas valve electrically connected to it, controls the gas valve to close, and closes the channel for natural gas or liquefied petroleum gas to be transmitted to the stove burner. Because the gas supply can no longer continue, the flame is extinguished.

[0031] Specifically, the input end of the stove controller is connected to the communication module, and the output end of the stove controller is connected to the switch of the gas valve. The stove controller and the communication module are installed at the bottom of the stove body, and the stove controller and the communication module are close to the gas valve. The stove controller model is: BL2102QF-P.

[0032] As a preferred embodiment, the communication module is one of the 2G, 3G, 4G or 5G communication modes. As a specific embodiment, the communication module is an NB-loT communication module, which has the advantages of low power consumption, long-distance transmission, indoor and outdoor coverage, etc. Furthermore, this embodiment adopts the NB-loT communication chip model Quectel BC95, which supports global multi-band, has strong transparent transmission capability, and has excellent indoor and outdoor coverage. The chip has a UART interface. The functional block diagram of the Quectel BC95 chip is as follows: Figure 2 As shown, the chip is connected to the cooker controller through the Main UART interface.

[0033] Furthermore, the gas valve includes a valve and a gas valve drive circuit. The output end of the stove controller is connected to the input end of the gas valve drive circuit. The gas valve drive circuit outputs a drive current to control the opening or closing of the valve. The gas valve is a solenoid valve, which contains a solenoid coil. The current is used to maintain the valve open. When there is no drive current, the gas valve is closed.

[0034] Gas valve drive circuit Figure 3As shown, the first pin of the output terminal XS8 is grounded through a resistor R55, and the first pin of the output terminal XS8 is also connected to a resistor R47, the other end of the resistor R47 is connected to the negative input terminal of the operational amplifier D6A, and the other end of the resistor R47 is also grounded through a capacitor C28. The second pin of the output terminal XS8 is connected to the collector of the PNP transistor V37, the emitter of the transistor V37 is connected to the +24V voltage, the collector of the transistor V37 is also grounded through a diode V39, the cathode of the diode is connected to the collector of the transistor V37, a resistor R51 is connected between the base of the transistor V37 and +24V, the base of the transistor V37 is also connected to the collector of the NPN transistor V40 through a series resistor R56R8, and the emitter of the transistor V40 is grounded. The emitter of transistor V40 is connected to the output of operational amplifier D6A, resistor R52 is connected between the positive input and output of operational amplifier D6A, resistor R62 is connected to the output of operational amplifier D6A, the other end of resistor R62 is connected to +5V power supply, resistor R58 is connected in series to the positive input of operational amplifier D6A, and capacitor C32 is connected in parallel to the positive input of operational amplifier D6A. The other end of resistor R58 is the electrical signal input end for controlling the switch of the solenoid valve, which can input a PWM signal with a certain duty cycle, or directly input a high level "1" or a low level "0".

[0035] Example 2

[0036] like Figure 4 The present invention shows a household gas stove system for a smart kitchen system, comprising the household gas stove for a smart kitchen system in Example 1, and also comprising an alarm and a control background. The alarm is used to collect gas concentration data and transmit the gas concentration data to the control background. The communication module obtains a control signal from the control background, and the communication module is used to send the control signal to the stove controller. The stove controller receives the control signal and turns off the stove flame.

[0037] Preferably, the alarm includes an alarm communication module and an alarm controller, and the alarm controller sends the collected gas concentration data to the control background through the alarm communication module. That is, the alarm communication module is used to send alarm signals and over-standard data, and the communication module on the gas cooker is used to receive control signals. The alarm signal can be a low-level signal "0" to turn off the cooker. Therefore, the control background only needs to perform simple forwarding without converting the data. The control background acts as a transfer station (or relay device) to directly send out the low-level signal "0" to turn off the cooker. The communication module in the gas cooker receives the low-level "0" signal wirelessly, and then transmits the low-level "0" signal to the cooker controller. The cooker controller outputs a low-level "0" to the gas valve electrically connected to it, controls the gas valve to close, and closes the channel for natural gas or liquefied petroleum gas to be transmitted to the cooker. Because the gas supply cannot continue, the flame goes out.

[0038] The alarm uses a CO / CH4 composite concentration detection alarm model JTM-AEC2368N with NB wireless communication. Therefore, the alarm communication module uses NB wireless communication.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A household gas cooker for a smart kitchen system, characterized in that: A control circuit in a gas cooker is included, wherein the control circuit includes a cooker controller and a communication module, wherein the communication module is in communication connection with the cooker controller, and the communication module is used to output a wireless control signal received from the outside to the cooker controller, and the cooker controller turns off the cooker flame according to the wireless control signal; The input end of the stove controller is connected to the communication module, the output end of the stove controller is connected to the input end of the gas valve drive circuit, and the output end of the gas valve drive circuit is used to control the valve switch; The gas valve driving circuit comprises: The first pin of the output terminal XS8 of the gas valve driving circuit is grounded through a resistor R55, and the first pin of the output terminal XS8 is also connected to a resistor R47, the other end of the resistor R47 is connected to the negative input terminal of the operational amplifier D6A, and the other end of the resistor R47 is also grounded through a capacitor C28; the second pin of the output terminal XS8 is connected to the collector of the PNP transistor V37, the emitter of the transistor V37 is connected to the +24V voltage, the collector of the transistor V37 is also grounded through a diode V39, the cathode of the diode is connected to the collector of the transistor V37, a resistor R51 is connected between the base of the transistor V37 and +24V, and the base of the transistor V37 is also connected in series Resistors R56R8 are connected to the collector of NPN transistor V40, and the emitter of transistor V40 is grounded; the emitter of transistor V40 is connected to the output of operational amplifier D6A, resistor R52 is bridged between the positive input and output of operational amplifier D6A, resistor R62 is connected to the output of operational amplifier D6A, the other end of resistor R62 is connected to a +5V power supply, resistor R58 is connected in series to the positive input of operational amplifier D6A, and capacitor C32 is connected in parallel to the positive input of operational amplifier D6A.

2. A household gas cooker for a smart kitchen system according to claim 1, characterized in that: The communication module is one of the 2G, 3G, 4G or 5G communication modes.

3. A household gas cooker for a smart kitchen system according to claim 2, characterized in that: The communication module is a NB-loT communication module.

4. A household gas cooker for a smart kitchen system according to claim 1, characterized in that: The cooker controller and the communication module are installed at the bottom of the cooker body, and the cooker controller and the communication module are close to the gas valve.

5. A household gas stove system for a smart kitchen system, characterized in that: The household gas cooker for a smart kitchen system according to any one of claims 1 to 4 further comprises an alarm and a control background. The alarm is used to collect gas concentration data and transmit the gas concentration data to the control background; The communication module obtains the control signal from the control background, and the communication module is used to send the control signal to the stove controller, and the stove controller turns off the stove flame after receiving the control signal.

6. A household gas cooker system for a smart kitchen system according to claim 5, characterized in that: The alarm device includes an alarm communication module and an alarm controller. The alarm controller sends the collected gas concentration data to the control background through the alarm communication module.

7. The household gas cooker system for a smart kitchen system according to claim 5, characterized in that: The alarm device is a CO / CH4 composite concentration detection alarm device with model number JTM-AEC2368N.

8. The household gas cooker system for a smart kitchen system according to claim 5, characterized in that: The communication module adopts NB-loT communication module.

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