Top-side integrated intelligent gas linkage range hood and control system thereof

Abstract

The invention belongs to the technical field of range hoods, and discloses a top-side integrated intelligent fuel gas linkage range hood and a control system thereof.The top-side integrated intelligent fuel gas linkage range hood comprises a top-side smoke collection mechanism, a top-side smoke collection mechanism and a top-side smoke collection mechanism, the top-side smoke collection mechanism comprises a dome-shaped smoke collection hood, and a smoke suction opening is formed in the smoke collection hood and communicates with a smoke collection cavity in the smoke collection hood; the fume collecting hood is connected with fume separating plates on the left side and the right side of the fume sucking hole group through hinge rod groups, the hinge rod group on one side is driven by a stepping motor, a piezoelectric ceramic sensor for sensing the impact force of oil fume in real time is arranged on the surface of each fume separating plate, and a piezoelectric ceramic sensor feedback control system regulates and controls the stepping motors to adjust the opening and closing angles of the fume separating plates; the vertical smoke exhaust mechanism comprises a suction and exhaust duct, the bottom of the suction and exhaust duct is communicated with the smoke collection cavity, and a motor cabin and a pressure sensor are arranged in the suction and exhaust duct; through deep combination of structural innovation and an intelligent control system, comprehensive upgrading of efficient smoke exhaust, safety protection, intelligent cleaning and user experience is achieved, and meanwhile kitchen ecological collaboration is supported.

Description

Technical Field

[0001] The present invention belongs to the technical field of range hoods, and more specifically, relates to a top-side integrated intelligent gas-linked range hood and its control system. Background Art

[0002] As a core device in modern kitchens, the performance of range hoods is directly related to the cleanliness of the kitchen environment, energy consumption efficiency, and user health. However, there are still many deficiencies in the technical implementation and functional design of traditional range hoods, which are specifically manifested in the following aspects:

[0003] I. Insufficient smoke collection efficiency and dynamic adjustment ability: Most traditional range hoods use a smoke collection hood with a fixed structure and cannot dynamically adjust the suction and exhaust parameters according to the actual amount of oil fumes. When the amount of cooking oil fumes suddenly increases (such as in the stir-fry scenario), the static smoke suction port design is prone to oil fume escape, affecting the user experience; for some products with adjustment functions, due to the lack of a real-time feedback mechanism, it is difficult to accurately match the dynamic changes of oil fumes, resulting in energy waste or low exhaust efficiency.

[0004] II. Complicated cleaning and low intelligence level: The oil stain cleaning of existing range hoods mainly relies on manual disassembly and cleaning, which is time-consuming and laborious, and it is difficult to thoroughly clean hidden areas such as the inside of the air duct and the impeller. In addition, there is a lack of an intelligent monitoring mechanism for oil stain accumulation, and users cannot predict the maintenance cycle, which is prone to performance degradation or failure of the equipment due to oil scale accumulation.

[0005] III. Weak gas safety protection and linkage ability: The linkage between traditional range hoods and gas stoves is mostly simple switch synchronization, lacking active monitoring and hierarchical response to gas leakage. When gas leakage occurs, the existing technology cannot quickly link to close the valve or start the strong exhaust mode, posing a safety hazard. At the same time, the matching of the exhaust gear and the stove firepower lacks dynamic algorithm support, resulting in energy efficiency waste or insufficient exhaust.

[0006] Therefore, the present invention provides a top-side integrated intelligent gas-linked range hood and its control system. Summary of the Invention

[0007] In view of the above problems existing in the prior art, the purpose of the present invention is to provide a top-side integrated intelligent gas-linked range hood and its control system, which realizes an all-round upgrade of efficient exhaust, safety protection, intelligent cleaning, and user experience through the deep combination of structural innovation and intelligent control system, and at the same time supports kitchen ecological collaboration.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A top-side integrated intelligent gas-linked range hood, characterized by comprising:

[0010] The top-side smoke collecting mechanism includes a dome-shaped smoke collecting hood. A smoke suction port is formed in the smoke collecting hood, and the smoke suction port is communicated with a smoke collecting cavity inside the smoke collecting hood. The smoke collecting hood is connected with smoke baffle plates on both the left and right sides of the smoke suction hole group through hinge rod groups. One hinge rod group is driven by a stepping motor. Piezoelectric ceramic sensors for real-time sensing of the oil fume impact force are arranged on the surfaces of the smoke baffle plates, and the piezoelectric ceramic sensors feed back to the control system to regulate the stepping motor to adjust the opening and closing angles of the smoke baffle plates;

[0011] The vertical smoke exhaust mechanism includes a smoke suction and exhaust air duct. The bottom of the smoke suction and exhaust air duct is communicated with the smoke collecting cavity. A motor cabin and a pressure sensor for real-time monitoring of the resistance in the air duct are arranged inside the smoke suction and exhaust air duct. A double-turbine split-type variable-frequency motor is installed in the motor cabin. The variable-frequency motor includes impellers in a low-speed area and a high-speed area. The pressure sensor feeds back to the control system to adjust the gear position of the variable-frequency motor;

[0012] The self-cleaning component includes a heating wire group and a steam spray washer. The heating wire group is provided with a first heating wire and a second heating wire. The first heating wire is arranged around the outer wall of the motor cabin. The steam spray washer includes a steam generator, and the steam generator is arranged on the inner wall of the smoke suction and exhaust air duct. The second heating wire is placed inside the steam generator and serves as the heat source of the steam generator;

[0013] The electric control component includes a main control power board and a touch display screen. The main control power board is jointly controlled with the touch display screen. The touch display screen is embedded on the front side of the smoke collecting hood. The main control power board is arranged outside the smoke suction and exhaust air duct. The main control power board includes a main control circuit and a communication electronic module. The main control power board is jointly controlled with a MEMS gas sensor and a solenoid valve arranged at the natural gas pipe valve through the communication electronic module. The electric control component is the hardware support of the control system.

[0014] As a further preferred technical solution of the present invention, the steam spray washer further includes a cleaning liquid injection pipe, a steam connecting pipe, a cleaning control switch, and a plurality of steam nozzles. The steam generator is communicated with the cleaning liquid injection pipe. The injection port at the other end of the cleaning liquid injection pipe is arranged outside the smoke suction and exhaust air duct. One end of the steam connecting pipe is communicated with the steam generator. The cleaning control switch is arranged at the connection between the steam connecting pipe and the steam generator. The other end of the steam connecting pipe is communicated with a plurality of the steam nozzles. The plurality of steam nozzles are arranged around the inner wall of the smoke suction and exhaust air duct. The steam nozzles are provided with three groups of nozzles. The first nozzle corresponds to the impeller, the second nozzle corresponds to the inner wall of the smoke suction and exhaust air duct, and the third nozzle corresponds to another steam nozzle.

[0015] As a further preferred technical solution of the present invention, an oil cup is provided at the bottom of the smoke collecting hood, an oil placement groove of the oil cup is communicated with a smoke collecting cavity of the smoke collecting hood, and a liquid level sensor, an oil cup temperature sensor and a constant temperature oil melting film are arranged in the oil placement groove of the oil cup. When the liquid level reaches the threshold value, the liquid level sensor feeds back to the control system to start the constant temperature oil melting film, and the control system also regulates through the feedback of the oil cup temperature sensor;

[0016] A smoke collecting temperature sensor is provided at the top of the smoke collecting cavity of the smoke collecting hood. The substrate forming the smoke collecting hood is a three-layer sandwich structure. The outer layer is a heat insulation material, the middle layer is a heating film, and the inner layer is a heat conducting material. The smoke collecting temperature sensor feeds back to the control system to regulate the heating film;

[0017] The left and right side walls of the smoke collecting cavity are formed by a pair of inclined guide plates made of shape memory alloy in the smoke collecting hood. The lower ends of the pair of inclined guide plates are respectively connected to the left side and the right side of a smoking hole group on the inner wall of the smoke collecting hood, and the upper ends of the pair of inclined guide plates are respectively connected to the communication port between the smoke collecting hood and the air suction and exhaust duct. Under normal conditions, the inclined surface of the inclined guide plate is 25°, and when the temperature in the smoke collecting cavity exceeds 100 °C, the inclined surface of the inclined guide plate is 45°;

[0018] The main control power board is connected to the household power supply through a power cord. The main control power board is connected to the stepping motor, the variable frequency motor, the heating wire group and the touch display screen. The main control power board is also connected to a pair of LED lights, and the pair of LED lights are respectively arranged outside the smoke collecting hood and between the smoking hole group and the hinge rod group.

[0019] As a further preferred technical solution of the present invention, the outer heat insulation material of the smoke collecting hood is a high-temperature resistant ceramic fiber composite material, the middle heating film is an indium tin oxide or aluminum-doped zinc oxide thin film, the inner heat conducting material is a graphene composite heat conducting sheet, the outer surface of the outer layer is coated with a corrosion-resistant and easy-to-clean coating, and the inner surface of the inner layer is coated with a super-hydrophobic and super-oleophobic coating;

[0020] The smoke separation plate is provided with a nano-aerogel thermal insulation layer inside and a heating graphene film is covered on the surface;

[0021] The electronic control component further includes a buzzer, a 3D vision sensor and an infrared thermal imager. The buzzer, the 3D vision sensor, the infrared thermal imager, the piezoelectric ceramic sensor, the pressure sensor, the steam washer, the liquid level sensor, the oil cup temperature sensor, the constant temperature oil melting film, the smoke collecting temperature sensor, the heating film and the heating graphene film are all connected to the main control power board;

[0022] The inner wall of the air suction and exhaust duct is coated with a super-hydrophobic and super-oleophobic coating;

[0023] The described motor compartment is provided with a Helmholtz resonance cavity and a gradient sound-absorbing cotton composite layer, and the bottom of the motor compartment is connected with a Y-shaped smoke dividing block;

[0024] The described main control power board is a wide-temperature and wide-humidity power board;

[0025] An AG glass is installed on the front side of the described smoke collecting hood.

[0026] A control system of a top-side integrated intelligent gas-linked range hood, based on the above-mentioned top-side integrated intelligent gas-linked range hood, includes:

[0027] An electric control and communication module, based on the main control power board and the communication electronic module thereon, supports device interconnection and cloud data interaction;

[0028] A safety response and stove linkage module, including a multi-level gas leakage response unit and a stove-smoke linkage unit. The multi-level gas leakage response unit calls the electric control and communication module to jointly control the MEMS gas sensor and the solenoid valve to achieve hierarchical safety response, solenoid valve and remote alarm; the stove-smoke linkage unit calls the electric control and communication module and based on the wireless communication protocol to achieve synchronous control of the intelligent stove and the variable-frequency motor, and real-time monitors the linkage state;

[0029] An AI dynamic control module, accesses the cloud AI large model algorithm interface, and integrates an environment perception unit and an AI decision-making unit. The environment perception unit uses the time-of-flight (ToF) imaging technology through a multi-modal sensor to fuse the cloud AI large model algorithm to construct a kitchen environment model and real-time collects environment data; the AI decision-making unit calls the cloud AI large model algorithm interface built-in transfer learning algorithm and time series prediction model, and based on the user's historical data to predict the user's behavior and analyze the environment data of the kitchen environment model, so as to dynamically optimize the variable-frequency motor gear and the angle of the smoke separation board;

[0030] A multi-modal interaction module, integrating a voice recognition unit, a gesture sensing unit and a user identity recognition unit, among which: the voice recognition unit dynamically adjusts the recognition threshold through a noise suppression algorithm, and is provided with a response abnormal cooking sound trigger mechanism; the gesture sensing unit supports two-way operation, and the user identity recognition unit is based on biometric features to associate with a personalized setting database;

[0031] An intelligent cleaning and maintenance module, calculates the oil stain adhesion amount based on the operation parameters of the variable-frequency motor and triggers the self-cleaning of the range hood, and real-time monitors the oil stain index;

[0032] An autonomous learning and collaboration module, including a user habit analysis unit and a device collaboration unit. The user habit analysis unit analyzes the user's habits and predicts the equipment maintenance requirements, and the device collaboration unit links intelligent devices to achieve scenario-based collaborative control.

[0033] As a further preferred technical solution of the present invention, the wireless communication protocol between the smoke range linkage unit and the intelligent cooker adopts LoRa or 2.4GHz wireless protocol. When the intelligent cooker is ignited, the variable frequency motor is started synchronously, and the gear position D of the variable frequency motor is adjusted in real time according to the flame intensity F fed back by the intelligent cooker, D = log 10 (F)+1; and a heartbeat signal is sent to the intelligent cooker every 60 seconds. If the feedback signal of the intelligent cooker is not received continuously for 3 times, it is determined that the linkage fails and the E5 fault code is triggered to stop the operation of the smoke range linkage unit;

[0034] The gas leakage multi-level response unit responds to gas leakage according to the following multi-level process:

[0035] When the methane concentration is greater than 200ppm, the sound and light alarm of the range hood is triggered, the LED light flashes, and the buzzer sounds;

[0036] When the methane concentration is greater than 500ppm and lasts for 5 seconds, the solenoid valve is closed, and the variable frequency motor is started at the maximum gear position for exhaust;

[0037] When the methane concentration is greater than 1000ppm, an alarm message is pushed to the user terminal, and positioning information is sent to the fire protection platform.

[0038] As a further preferred technical solution of the present invention, the AI decision-making unit of the AI dynamic control module generates personalized recipes based on user health data through transfer learning algorithm, and also calls the kitchen environment model of the environment perception unit of the AI dynamic control module to real-time identify the oil temperature in the pot and the doneness of the ingredients, and generates real-time cooking guidance voice in combination with the built-in speaker of the touch display screen.

[0039] As a further preferred technical solution of the present invention, the voice recognition unit, gesture sensing unit and user identity recognition unit of the multi-modal interaction module are all based on the touch display screen. The voice recognition unit calls the cloud AI large model algorithm interface of the AI dynamic control module to filter environmental noise by using convolutional neural network, dynamically adjusts the recognition threshold (Δ = environmental noise decibel value × 0.2), and supports offline keyword wake-up and cloud semantic parsing; the response abnormal cooking sound trigger mechanism of the voice recognition unit is: when the abnormal oil explosion sound is detected, the variable frequency motor is shifted up and a voice warning is issued;

[0040] The gesture sensing unit supports two-way operations through the infrared pair tube group and capacitance sensor in the touch display screen: the gesture from left to right gradually shifts up the gear position of the variable frequency motor and the gesture from right to left closes; the gesture validity determination condition of the gesture sensing unit is: the gesture speed is 0.3-1m / s and at least 3 groups of infrared pair tubes are triggered and the capacitance change rate > 15%;

[0041] The user identity recognition unit calls the cloud AI large model algorithm interface in combination with the voice recognition unit to extract the user's voiceprint features and / or collects the user's facial data based on the camera of the touch display screen to distinguish the user, and associates the user's personalized settings database to call the user's cleaning cycle preference, the default gear of the variable frequency motor and the lighting brightness.

[0042] As a further preferred technical solution of the present invention, the intelligent cleaning and maintenance module monitors the oil pollution index in real time through current harmonic analysis, and calculates the oil pollution attachment amount Q=ΔI based on the variable frequency motor current fluctuation value ΔI and the cumulative running time T 2 ×T, when Q>300mg, the range hood self-cleaning is started; when the range hood is self-cleaning, the heating film is heated up in stages (80℃ / 100℃ / 120℃), and the duration of each stage is t=Q / 100×60 seconds. After cleaning, the frequency conversion motor runs 3 times at the rate of 2 seconds forward / 1 second reverse to remove water stains.

[0043] As a further preferred technical solution of the present invention, the user habit analysis unit of the autonomous learning and collaboration module analyzes the user's cooking habits by calling the built-in long short-term memory network (LSTM) of the cloud AI big model algorithm interface, predicts usage needs and establishes a variable frequency motor life model, and pushes maintenance suggestions when the time limit is exceeded;

[0044] The equipment coordination unit of the autonomous learning and coordination module calls the electronic control and communication module to link the fresh air system and the intelligent lighting gateway based on the Zigbee / WiFi dual-mode protocol, and synchronously adjusts the lighting brightness and ventilation frequency when the range hood is operating in different gears.

[0045] As described above, the top-side integrated intelligent gas-linked range hood and its control system provided by the present invention have the following beneficial effects:

[0046] 1. High-efficiency smoke suction and exhaust and dynamic adjustment capability: Through the combined design of the dome-shaped smoke hood and the inclined guide plate, the piezoelectric ceramic sensor can sense the impact of oil smoke in real time, and drive the stepper motor to dynamically adjust the opening and closing angle of the smoke partition plate, which significantly improves the efficiency of oil smoke capture and reduces oil smoke escape; and when the temperature of the smoke collection chamber exceeds 100°C, the angle of the shape memory alloy guide plate is automatically adjusted to 45° to enhance the diversion effect of high-temperature oil smoke; in addition, the vertical smoke exhaust mechanism has a built-in pressure sensor and a dual-turbine split-type variable frequency motor, which can switch the low-speed / high-speed zone impeller in real time according to the resistance in the air duct, realize adaptive adjustment of air volume, reduce energy consumption and noise, and at the same time, the Y-shaped smoke partition block and the Helmholtz resonance cavity further optimize the airflow distribution and noise reduction.

[0047] 2. Intelligent safety and gas linkage response: Through the joint control of MEMS gas sensors and solenoid valves, hierarchical safety responses are achieved. When the methane concentration exceeds the threshold, audible and visual alarms are triggered in sequence, the gas valve is closed, the maximum exhaust gear is started, and remote alarm information is pushed, significantly improving the kitchen safety level. Moreover, based on the LoRa / 2.4GHz protocol, real-time linkage with intelligent cooktops is realized, and the frequency conversion motor gear is dynamically adjusted according to the flame intensity according to the formula (D = log 10 (F)+1), and the heartbeat signal detection linkage status is set to ensure the accurate matching of the exhaust efficiency and the cooktop firepower.

[0048] 3. Intelligent cleaning and maintenance system: Through the cooperation of the heating wire group and the steam washer, combined with the segmented temperature increase strategy and the three-way steam nozzle, comprehensive cleaning of the impeller, the inner wall of the air duct, and adjacent nozzles is achieved. Moreover, the oil-repellent and water-repellent coating and the constant-temperature oil-melting film further reduce oil stains and extend the equipment life. In addition, based on the analysis and calculation of the current harmonics of the frequency conversion motor, the oil stain adhesion Q = ΔI 2 ×T. When the dirt accumulation exceeds the threshold, the cleaning process is automatically triggered, and the water stains are removed by alternating forward and reverse operation, reducing the user's manual maintenance requirements.

[0049] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0051] Figure 1 It is a schematic structural diagram of a top-side integrated intelligent gas linkage range hood according to the present invention application;

[0052] Figure 2 It is a top view of a top-side integrated intelligent gas linkage range hood according to the present invention application;

[0053] Figure 3 It is a front view of a top-side integrated intelligent gas linkage range hood according to the present invention application;

[0054] Figure 4 It is Figure 3 a cross-sectional view in the A-A direction in

[0055] Figure 5 It is a schematic structural diagram of the vertical exhaust mechanism of a top-side integrated intelligent gas linkage range hood according to the present invention application;

[0056] Figure 6 This is the basic electrical framework diagram of a vertical smoke exhaust mechanism for a top - side integrated intelligent gas - linked range hood according to the present invention application;

[0057] Figure 7 This is the architecture topology diagram of a control system for a top - side integrated intelligent gas - linked range hood according to the present invention application;

[0058] Figure 8 This is the structural framework diagram of a control system for a top - side integrated intelligent gas - linked range hood according to the present invention application.

[0059] Summary of reference numerals and their descriptions:

[0060] 100, top - side smoke collection mechanism; 110, smoke collection hood; 120, smoke suction port; 130, smoke collection cavity; 140, hinge rod group; 150, smoke baffle; 160, stepper motor; 170, oil cup; 180, inclined deflector; 200, vertical smoke exhaust mechanism; 210, suction and exhaust air duct; 220, motor compartment; 230, variable - frequency motor; 240, Y - shaped smoke - dividing block; 300, electric control component; 310, main control power board; 320, touch display screen. Detailed implementation manners

[0061] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0062] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of description and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented. The specific structure can be described with reference to the drawings of the patent application.

[0063] The present invention provides a top - side integrated intelligent gas - linked range hood and its control system. Please refer to Figures 1 to 7 As shown, a top - side integrated intelligent gas - linked range hood, characterized by comprising:

[0064] The top-side smoke collection mechanism 100 includes a dome-shaped smoke collection hood 110. A smoke suction port 120 is provided on the smoke collection hood 110, and the smoke suction port 120 communicates with a smoke collection chamber 130 inside the smoke collection hood 110. On both the left and right sides of the smoke suction hole group, the smoke collection hood 110 is connected with a smoke separation plate 150 through a hinge rod group 140. One side of the hinge rod group 140 is driven by a stepper motor 160. A piezoelectric ceramic sensor for real-time sensing of the oil fume impact force is provided on the surface of the smoke separation plate 150, and the piezoelectric ceramic sensor feeds back to the control system to regulate the opening and closing angle of the smoke separation plate 150 by controlling the stepper motor 160. The dome-shaped smoke collection hood 110 combined with the smoke separation plate 150 driven by the hinge rod can real-time sense the oil fume impact force through the piezoelectric ceramic sensor and feedback to adjust the opening and closing angle, significantly improving the oil fume collection efficiency and reducing oil fume escape.

[0065] The vertical smoke exhaust mechanism 200 includes a smoke suction and exhaust duct 210. The bottom of the smoke suction and exhaust duct 210 communicates with the smoke collection chamber 130. A motor cabin 220 and a pressure sensor for real-time monitoring of the resistance inside the duct are provided inside the smoke suction and exhaust duct 210. A double-turbine split-type variable-frequency motor 230 is installed in the motor cabin 220. The variable-frequency motor 230 includes impellers in a low-speed area and a high-speed area. The pressure sensor feeds back to the control system to adjust the gear of the variable-frequency motor 230. The double-turbine split-type variable-frequency motor 230 cooperates with the pressure sensor to real-time monitor the duct resistance, and adaptively switches between the impellers in the low-speed area (low noise in daily use) and the high-speed area (strong exhaust during stir-frying), achieving energy saving, noise reduction and efficient smoke exhaust.

[0066] The self-cleaning component includes a heating wire group and a steam spray washer. The heating wire group is provided with a first heating wire and a second heating wire. The first heating wire is arranged around the outer wall of the motor cabin 220. The steam spray washer includes a steam generator, and the steam generator is arranged on the inner wall of the smoke suction and exhaust duct 210. The second heating wire is placed inside the steam generator and serves as the heat source of the steam generator. The heating wire group and the steam spray washer work together to heat and melt the oil on the outer wall of the motor cabin 220 and the inner wall of the duct and perform steam flushing, reducing the accumulation of oil dirt and extending the service life of the equipment.

[0067] The electronic control component 300 includes a main control power board 310 and a touch display screen 320. The main control power board 310 and the touch display screen 320 are jointly controlled. The touch display screen 320 is embedded on the front side of the smoke collection hood 110, and the main control power board 310 is arranged outside the smoke suction and exhaust duct 210. The main control power board 310 includes a main control circuit and a communication electronic module. The main control power board 310 is jointly controlled with a MEMS gas sensor and a solenoid valve arranged at the natural gas pipe valve through the communication electronic module. The electronic control component 300 provides hardware support for the control system. The main control power board 310 and the touch display screen 320 are integrated, and jointly control the gas valve (MEMS gas sensor + solenoid valve) through the communication electronic module to realize gas leakage monitoring and smoke exhaust linkage, improving safety.

[0068] The steam sprayer also includes a cleaning liquid injection pipe, a steam connecting pipe, a cleaning control switch and a plurality of steam nozzles. The steam generator is connected to the cleaning liquid injection pipe. The injection port at the other end of the cleaning liquid injection pipe is arranged outside the suction and exhaust air duct 210. One end of the steam connecting pipe is connected to the steam generator. The cleaning control switch is arranged at the connection between the steam connecting pipe and the steam generator. The other end of the steam connecting pipe is connected to a plurality of steam nozzles. The plurality of steam nozzles are arranged around the inner wall of the suction and exhaust air duct 210. The steam nozzle is provided with three groups of nozzles, the first nozzle corresponds to the impeller, the second nozzle corresponds to the inner wall of the suction and exhaust air duct 210, and the third nozzle corresponds to another steam nozzle. The steam sprayer uses three groups of nozzles (corresponding to the impeller, the inner wall of the air duct, and the adjacent nozzles) for all-round steam spraying, combined with the external design of the cleaning liquid injection pipe, to simplify user operation and ensure that there are no dead angles in cleaning. In addition, the cleaning control switch and the steam generator can be linked to trigger the cleaning process on demand for different contaminated areas, thereby reducing energy consumption and water consumption.

[0069] An oil cup 170 is arranged at the bottom of the smoke hood 110, and the oil groove of the oil cup 170 is connected with the smoke collecting chamber 130 of the smoke hood 110. A liquid level sensor, an oil cup 170 temperature sensor and a constant temperature melt oil film are arranged in the oil groove of the oil cup 170. When the liquid level reaches the threshold, the liquid level sensor feedback control system starts the constant temperature melt oil film, and the control system also feedbacks and regulates through the oil cup 170 temperature sensor; the liquid level sensor cooperates with the constant temperature melt oil film to realize automatic melting of oil stains and full oil warning, avoiding the tedious operation of manually cleaning the oil cup 170.

[0070] A smoke temperature sensor is arranged on the top of the smoke collecting cavity 130 of the smoke collecting hood 110. The base plates of the smoke collecting hood 110 are three-layer sandwich structures, the outer layer is a heat insulating material, the middle layer is a heating film, and the inner layer is a heat conductive material. The smoke temperature sensor feedback control system regulates the heating film; the smoke temperature sensor regulates the three-layer sandwich structure (heat insulating layer + heating film + heat conductive layer) to balance the temperature of the smoke collecting cavity 130 and prevent high-temperature deformation or low-temperature oil condensation.

[0071] A pair of inclined guide plates 180 made of shape memory alloy are used to construct the left and right side walls of the smoke collecting chamber 130 in the smoke collecting hood 110. The lower ends of the pair of inclined guide plates 180 are respectively connected to the left and right sides of the smoking hole group on the inner wall of the smoke collecting hood 110, and the upper ends of the pair of inclined guide plates 180 are respectively connected to the connecting ports of the smoke collecting hood 110 and the suction and exhaust duct 210. Under normal conditions, the inclined surface of the inclined guide plate 180 is 25°. When the temperature in the smoke collecting chamber 130 exceeds 100°C, the inclined surface of the inclined guide plate 180 is 45°. The inclined guide plate 180 made of shape memory alloy adjusts its angle (25°→45°) as the temperature changes, thereby enhancing the high-temperature oil smoke diversion efficiency and reducing the thermal stress of the cavity.

[0072] The described main control power board 310 is connected to the household power supply through a power cord. The main control power board 310 is connected to the stepping motor 160, the variable frequency motor 230, the heating wire group, and the touch display screen 320. The main control power board 310 is also connected to a pair of LED lights, and the pair of LED lights are respectively arranged outside the smoke collecting hood 110 and between the smoke suction hole group and the hinge rod group 140.

[0073] The outer heat insulation material of the smoke collecting hood 110 is a high-temperature resistant ceramic fiber composite material, the middle heating film is an indium tin oxide or aluminum-doped zinc oxide thin film, the inner heat conduction material is a graphene composite heat conduction sheet, the outer surface of the outer layer is coated with a corrosion-resistant and easy-to-clean coating, and the inner surface of the inner layer is coated with a super-hydrophobic and super-oleophobic coating;

[0074] The smoke separation board 150 is provided with a nanoscale aerogel thermal insulation layer, and the surface is covered with a heating graphene film to improve its smoke separation and heat insulation performance;

[0075] The electronic control component 300 further includes a buzzer, a 3D vision sensor, and an infrared thermal imager. The buzzer, 3D vision sensor, infrared thermal imager, piezoelectric ceramic sensor, pressure sensor, steam washer, liquid level sensor, oil cup 170 temperature sensor, constant temperature oil melting film, smoke collecting temperature sensor, heating film, and heating graphene film are all connected to the main control power board 310;

[0076] The inner wall of the smoke suction and exhaust duct 210 is coated with a super-hydrophobic and super-oleophobic coating;

[0077] The motor compartment 220 is provided with a composite layer of Helmholtz resonance cavity and gradient sound-absorbing cotton. The bottom of the motor compartment 220 is connected with a Y-shaped smoke dividing block 240; the composite layer of Helmholtz resonance cavity and gradient sound-absorbing cotton reduces the motor noise, and the Y-shaped smoke dividing block 240 optimizes the air flow distribution.

[0078] The main control power board 310 is a wide-temperature and wide-humidity power board;

[0079] An AG glass is installed on the front side of the smoke collecting hood 110, and the AG glass improves the anti-fingerprint and anti-reflection performance of the touch screen.

[0080] A control system for a top-side integrated intelligent gas-linked range hood, based on the above-mentioned top-side integrated intelligent gas-linked range hood, includes:

[0081] An electronic control and communication module, based on the main control power board 310 and the communication electronic module thereon, supports device interconnection and cloud data interaction;

[0082] Safety response and stove linkage module, including a multi-level gas leakage response unit and a stove and range hood linkage unit. The multi-level gas leakage response unit calls the electric control and communication module to jointly control the MEMS gas sensor and the solenoid valve to achieve hierarchical safety response, solenoid valve and remote alarm; the stove and range hood linkage unit calls the electric control and communication module and realizes the synchronous control of the intelligent cooker and the variable frequency motor 230 based on the wireless communication protocol, and monitors the linkage state in real time to improve kitchen safety;

[0083] AI dynamic control module, accessing the cloud AI large model algorithm interface, and integrating an environment perception unit and an AI decision-making unit. The environment perception unit uses the time-of-flight (ToF) imaging technology through multi-modal sensors (such as: MEMS gas sensor, 3D vision sensor and infrared thermal imager) to fuse the cloud AI large model algorithm to build a kitchen environment model and collect environmental data in real time; the AI decision-making unit calls the migration learning algorithm and the time series prediction model built in the cloud AI large model algorithm interface, predicts the user's behavior based on the user's historical data and analyzes the environmental data of the kitchen environment model, so as to dynamically optimize the gear position of the variable frequency motor 230 and the angle of the smoke baffle 150 to achieve precise control;

[0084] Multi-modal interaction module, integrating a voice recognition unit, a gesture sensing unit and a user identity recognition unit. Among them: the voice recognition unit dynamically adjusts the recognition threshold through a noise suppression algorithm, and is equipped with a response abnormal cooking sound trigger mechanism; the gesture sensing unit supports two-way operation, and the user identity recognition unit is based on biometric features to associate with a personalized setting database to meet the control requirements in complex scenarios;

[0085] Intelligent cleaning and maintenance module, calculating the oil stain adhesion amount based on the operating parameters of the variable frequency motor 230 and triggering the self-cleaning of the range hood, and monitoring the oil stain index in real time;

[0086] Autonomous learning and collaboration module, including a user habit analysis unit and a device collaboration unit. The user habit analysis unit analyzes the user's habits and predicts the equipment maintenance needs, and the device collaboration unit links intelligent devices to achieve scenario-based collaborative control.

[0087] The wireless communication protocol between the stove and range hood linkage unit and the intelligent cooker adopts the LoRa or 2.4GHz wireless protocol. When the intelligent cooker is ignited, the variable frequency motor 230 is started synchronously, and the gear position D of the variable frequency motor 230 is adjusted in real time according to the flame intensity F feedback by the intelligent cooker, D = log10(F)+1, so as to dynamically adjust the gear position of the variable frequency motor 230 to ensure the accurate matching of the exhaust air volume and the firepower and avoid ineffective power consumption; and a heartbeat signal is sent to the intelligent cooker every 60 seconds. If the feedback signal of the intelligent cooker is not received continuously for 3 times, it is determined that the linkage fails and the E5 fault code is triggered to stop the operation of the stove and range hood linkage unit to prevent the equipment from getting out of control;

[0088] The multi-level gas leakage response unit of the above-mentioned responds to gas leakage according to the following multi-level process:

[0089] When the methane concentration is greater than 200 ppm, the audible and visual alarm of the range hood is triggered, the LED light flashes, and the buzzer sounds.

[0090] When the methane concentration is greater than 500 ppm for 5 seconds, the solenoid valve is closed, and the variable-frequency motor 230 is started at the maximum gear for exhaust.

[0091] When the methane concentration is greater than 1000 ppm, an alarm message is pushed to the user terminal, and positioning information is sent to the fire protection platform.

[0092] The AI decision-making unit of the AI dynamic control module generates personalized recipes (such as low-fat / low-salt recipes) based on user health data through transfer learning algorithms to promote healthy eating. It also calls the kitchen environment model of the environment perception unit of the AI dynamic control module to real-time identify the oil temperature in the pot and the doneness of the ingredients, and combines with the built-in speaker of the touch display screen 320 to generate real-time cooking guidance voice (such as "The oil temperature is too high, it is recommended to turn to medium heat") to assist users in cooking.

[0093] The voice recognition unit, gesture sensing unit, and user identity recognition unit of the multimodal interaction module are all based on the touch display screen 320. The voice recognition unit calls the cloud AI large model algorithm interface of the AI dynamic control module to filter environmental noise using a convolutional neural network, dynamically adjust the recognition threshold (Δ = environmental noise decibel value × 0.2), improve the instruction recognition rate in complex environments, and support offline keyword wake-up and cloud semantic parsing; the response abnormal cooking sound trigger mechanism of the voice recognition unit is: when detecting abnormal oil explosion sound, trigger the variable-frequency motor 230 to shift up a gear and issue a voice warning.

[0094] The gesture sensing unit supports two-way operations through the infrared pair tube group and capacitance sensor in the touch display screen 320: the gesture from left to right gradually shifts up the gear of the variable-frequency motor 230 and the gesture from right to left closes it; the gesture validity determination condition of the gesture sensing unit is: the gesture speed is 0.3 - 1 m / s and at least 3 groups of infrared pair tubes are triggered and the capacitance change rate > 15%, to avoid misoperation.

[0095] The user identity recognition unit calls the cloud AI large model algorithm interface to combine with the voice recognition unit to extract the voiceprint features of the user and / or collect the facial data of the user based on the camera of the touch display screen 320 to distinguish users, and associates with the user personalized setting database to call the user's cleaning cycle preference, the default gear of the variable-frequency motor 230, and the lighting brightness.

[0096] The described intelligent cleaning and maintenance module monitors the oil pollution index in real time through current harmonic analysis, and calculates the oil adhesion amount Q = ΔI based on the current fluctuation value ΔI of the variable-frequency motor 230 and the cumulative operation time T. 2 ×T. When Q > 300 mg, the self-cleaning function of the range hood is activated. During the self-cleaning of the range hood, the heating film heats up in segments (80°C / 100°C / 120°C), and the duration of each segment is t = Q / 100×60 seconds. After cleaning, the variable-frequency motor 230 runs forward for 2 seconds and reverses for 1 second three times to remove water stains.

[0097] The user habit analysis unit of the described autonomous learning and collaboration module analyzes the user's cooking habits by calling the cloud AI large model algorithm interface with a built-in long short-term memory network (LSTM), predicts the usage requirements, and establishes a life model for the variable-frequency motor 230. When the limit is exceeded, maintenance suggestions (such as "the impeller wear exceeds the limit, it is recommended to replace") are pushed to reduce the risk of failure.

[0098] The device collaboration unit of the described autonomous learning and collaboration module calls the described electric control and communication module to link the fresh air system and the intelligent lighting gateway based on the Zigbee / WiFi dual-mode protocol, and synchronously adjusts the lighting brightness and ventilation frequency under different gears of the range hood; through the Zigbee / WiFi dual-mode protocol, it links the fresh air system and the intelligent lighting, and automatically adjusts the ventilation frequency and lighting brightness according to the exhaust gear (such as enhancing the ventilation synchronously when the range hood is in strong exhaust), creating a scene-based kitchen environment.

[0099] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An integrated top and side intelligent gas-linked range hood, characterized in that, include: The top-side smoke collecting mechanism comprises a dome-shaped smoke collecting hood, a smoke inlet is provided on the smoke collecting hood, the smoke inlet is communicated with a smoke collecting cavity in the smoke collecting hood, the smoke collecting hood is connected with smoke isolation plates on the left and right sides of the smoke inlet hole group through hinge rod groups, the hinge rod group on one side is driven by a stepper motor, a piezoelectric ceramic sensor for real-time sensing of the impact force of oil smoke is provided on the surface of the smoke isolation plate, and the piezoelectric ceramic sensor feedback control system controls the stepper motor to adjust the opening and closing angle of the smoke isolation plate; The vertical smoke exhaust mechanism includes an air intake and exhaust duct, the bottom of which is connected to the smoke collecting chamber, the air intake and exhaust duct is equipped with a motor compartment and a pressure sensor for real-time monitoring of the resistance in the duct, the motor compartment is equipped with a double-turbine split variable frequency motor, the variable frequency motor includes a low-speed zone impeller and a high-speed zone impeller, and the pressure sensor feedback control system is used to adjust the gear position of the variable frequency motor; The self-cleaning component includes a heating wire group and a steam sprayer, wherein the heating wire group includes a first heating wire and a second heating wire, wherein the first heating wire is arranged around the outer wall of the motor compartment, the steam sprayer includes a steam generator, the steam generator is arranged on the inner wall of the suction and exhaust air duct, and the second heating wire is arranged in the steam generator and serves as a heat source of the steam generator; The electric control component includes a main control power board and a touch screen. The main control power board and the touch screen are linked to each other. The touch screen is embedded on the front side of the smoke hood. The main control power board is located outside the suction and exhaust duct. The main control power board includes a main control circuit and a communication electronic module. The main control power board is linked to the MEMS gas sensor and the solenoid valve located at the natural gas pipe valve through the communication electronic module. The electric control component is the hardware support for the control system.

2. The integrated top and side intelligent gas-linked range hood according to claim 1, characterized in that The steam sprayer also includes a cleaning liquid injection pipe, a steam connecting pipe, a cleaning control switch and a plurality of steam nozzles. The steam generator is connected to the cleaning liquid injection pipe. The injection port at the other end of the cleaning liquid injection pipe is arranged outside the suction and exhaust air duct. One end of the steam connecting pipe is connected to the steam generator. The cleaning control switch is arranged at the connection between the steam connecting pipe and the steam generator. The other end of the steam connecting pipe is connected to a plurality of steam nozzles. The plurality of steam nozzles are arranged around the inner wall of the suction and exhaust air duct. The steam nozzle is provided with three groups of nozzles. The first nozzle corresponds to the impeller, the second nozzle corresponds to the inner wall of the suction and exhaust air duct, and the third nozzle corresponds to another steam nozzle.

3. The integrated top and side intelligent gas linkage range hood according to claim 1, wherein An oil cup is arranged at the bottom of the smoke collecting hood, and the oil groove of the oil cup is connected with the smoke collecting cavity of the smoke collecting hood. A liquid level sensor, an oil cup temperature sensor and a constant temperature melt oil film are arranged in the oil groove of the oil cup. When the liquid level reaches the threshold, the liquid level sensor feedback control system starts the constant temperature melt oil film, and the control system also feedbacks and regulates through the oil cup temperature sensor; The top of the smoke collecting cavity of the smoke collecting hood is provided with a smoke collecting temperature sensor, and the base plate of the smoke collecting hood is a three-layer sandwich structure, the outer layer is a heat insulating material, the middle layer is a heating film, and the inner layer is a heat conducting material. The smoke collecting temperature sensor feedback control system regulates the heating film; Inside the smoke collecting hood, a pair of inclined guide plates made of shape memory alloy are used to construct the left and right side walls of the smoke collecting cavity. The lower ends of the pair of inclined guide plates are respectively connected to the left and right sides of the smoking hole group on the inner wall of the smoke collecting hood, and the upper ends of the pair of inclined guide plates are respectively connected to the communication port between the smoke collecting hood and the smoke exhaust and intake duct. Under normal conditions, the inclined surface of the inclined guide plate is 25°, and when the temperature in the smoke collecting cavity exceeds 100 °C, the inclined surface of the inclined guide plate is 45°; The main control power board is connected to the household power supply through a power cord. The main control power board is connected to the stepping motor, the variable frequency motor, the heating wire group, and the touch display screen. The main control power board is also connected to a pair of LED lights, and the pair of LED lights are respectively arranged outside the smoke collecting hood and between the smoking hole group and the hinge rod group.

4. The integrated top and side intelligent gas-linked range hood according to claim 3, wherein, The outer heat insulation material of the smoke collecting hood is a high-temperature resistant ceramic fiber composite material, the middle heating film is indium tin oxide or aluminum-doped zinc oxide thin film, the inner heat conduction material is a graphene composite heat conduction sheet, the outer surface of the outer layer is coated with a corrosion-resistant and easy-to-clean coating, and the inner surface of the inner layer is coated with an oleophobic and hydrophobic double-hydrophobic coating; The smoke separation board is provided with a nano-aerogel thermal insulation layer inside and a heating graphene film is covered on the surface; The electronic control component also includes a buzzer, a 3D vision sensor, and an infrared thermal imager. The buzzer, 3D vision sensor, infrared thermal imager, piezoelectric ceramic sensor, pressure sensor, steam washer, liquid level sensor, oil cup temperature sensor, constant temperature oil melting film, smoke collecting temperature sensor, heating film, and heating graphene film are all connected to the main control power board; The inner wall of the smoke exhaust and intake duct is coated with an oleophobic and hydrophobic double-hydrophobic coating; The motor compartment is provided with a composite layer of Helmholtz resonance cavity and gradient sound-absorbing cotton, and a Y-shaped smoke dividing block is connected to the bottom of the motor compartment; The main control power board is a wide-temperature and wide-humidity power board; An AG glass is installed on the front side of the smoke collecting hood.

5. A control system for a top-side integrated intelligent gas-linked range hood, based on a top-side integrated intelligent gas-linked range hood according to claims 1-4, characterized in that, Including: The electronic control and communication module, based on the main control power board and the communication electronic module thereon, supports device interconnection and cloud data interaction; The safety response and stove linkage module includes a multi-level gas leakage response unit and a smoke stove linkage unit. The multi-level gas leakage response unit calls the electronic control and communication module to jointly control the MEMS gas sensor and the solenoid valve to achieve hierarchical safety response, solenoid valve and remote alarm; the smoke stove linkage unit calls the electronic control and communication module and based on the wireless communication protocol to achieve synchronous control of the intelligent stove and the variable frequency motor, and real-time monitoring of the linkage state; The AI dynamic control module accesses the cloud AI large model algorithm interface, and integrates an environment perception unit and an AI decision-making unit. The environment perception unit uses the time-of-flight (ToF) imaging technology through a multi-modal sensor to fuse the cloud AI large model algorithm to construct a kitchen environment model and collect environmental data in real time; the AI decision-making unit calls the cloud AI large model algorithm interface built-in transfer learning algorithm and time series prediction model, and based on the user's historical data to predict the user's behavior and analyze the environmental data of the kitchen environment model, so as to dynamically optimize the variable frequency motor gear and the angle of the smoke separation board; The multimodal interaction module integrates a voice recognition unit, a gesture sensing unit, and a user identity recognition unit, where: the voice recognition unit dynamically adjusts the recognition threshold through a noise suppression algorithm and has a trigger mechanism for responding to abnormal cooking sounds; the gesture sensing unit supports two-way operations, and the user identity recognition unit is associated with a personalized setting database based on biometric characteristics; The intelligent cleaning and maintenance module calculates the amount of oil adhesion based on the operating parameters of the variable-frequency motor and triggers the self-cleaning of the range hood, and also monitors the oil pollution index in real time; The autonomous learning and collaboration module includes a user habit analysis unit and a device collaboration unit. The user habit analysis unit analyzes user habits and predicts equipment maintenance needs, and the device collaboration unit links intelligent devices to achieve scenario-based collaborative control.

6. The control system of an integrated top and side intelligent gas linkage range hood according to claim 5, characterized in that, The wireless communication protocol between the described smoke and stove linkage unit and the intelligent stove adopts LoRa or 2.4GHz wireless protocol. When the intelligent stove is ignited, the variable-frequency motor is started synchronously, and the gear position D of the variable-frequency motor is adjusted in real time according to the flame intensity F feedback by the intelligent stove, where D = log 10 (F)+1; and a heartbeat signal is sent to the intelligent stove every 60 seconds. If the feedback signal of the intelligent stove is not received continuously for 3 times, it is determined that the linkage fails and the E5 fault code is triggered to stop the operation of the smoke and stove linkage unit; The gas leakage multi-level response unit responds to gas leakage according to the following multi-level process: When the methane concentration is greater than 200 ppm, trigger the audible and visual alarm of the range hood, the LED light flashes, and the buzzer sounds; When the methane concentration is greater than 500 ppm and lasts for 5 seconds, close the solenoid valve and start the variable-frequency motor for exhaust at the maximum gear; When the methane concentration is greater than 1000 ppm, push an alarm message to the user terminal and send the location information to the fire protection platform.

7. The control system of a top-side integrated intelligent gas-linked range hood according to claim 5, characterized in that The AI decision-making unit of the AI dynamic control module generates personalized recipes based on user health data through a transfer learning algorithm, and also calls the kitchen environment model of the environment perception unit of the AI dynamic control module to real-time identify the oil temperature in the pot and the doneness of the ingredients, and generates real-time cooking guidance voice in combination with the built-in speaker of the touch display screen.

8. The control system of a top-side integrated intelligent gas-linked range hood according to claim 5, characterized in that, The voice recognition unit, gesture sensing unit, and user identity recognition unit of the multimodal interaction module are all based on the touch display screen. The voice recognition unit calls the cloud AI large model algorithm interface of the AI dynamic control module to filter environmental noise using a convolutional neural network, dynamically adjusts the recognition threshold (Δ = environmental noise decibel value × 0.2), and supports offline keyword wake-up and cloud semantic parsing; the trigger mechanism for the voice recognition unit to respond to abnormal cooking sounds is: when an abnormal oil explosion sound is detected, trigger the variable-frequency motor to shift up a gear and issue a voice warning; The two-way operation supported by the gesture sensing unit through the infrared pair tube group and capacitance sensor in the touch display screen is: the gesture from left to right gradually shifts up the gear of the variable-frequency motor, and the gesture from right to left closes it; the determination condition for the validity of the gesture of the gesture sensing unit is: the gesture speed is 0.3 - 1 m / s and at least 3 groups of infrared pair tubes are triggered and the capacitance change rate > 15%; The user identity recognition unit calls the cloud AI large model algorithm interface to extract the user's voiceprint features in combination with the voice recognition unit and / or collect the user's facial data based on the camera of the touch display screen to distinguish users, and is associated with the user's personalized setting database to call the user's cleaning cycle preference, the default gear of the variable-frequency motor, and the lighting brightness.

9. The control system of an integrated top and side intelligent gas-linked range hood according to claim 5, characterized in that, The described intelligent cleaning and maintenance module monitors the oil pollution index in real time through current harmonic analysis, and calculates the oil adhesion amount Q = ΔI 2 ×T based on the current fluctuation value ΔI of the variable-frequency motor and the cumulative operation time T. When Q > 300 mg, the self-cleaning function of the range hood is started. During the self-cleaning of the range hood, the heating film is heated in segments (80°C / 100°C / 120°C), and the duration of each segment is t = Q / 100 × 60 seconds. After cleaning, the variable-frequency motor runs 3 times at a forward rotation of 2 seconds / reverse rotation of 1 second to remove water stains.

10. The control system of a top-side integrated intelligent gas-linked range hood according to claim 5, characterized in that, The user habit analysis unit of the autonomous learning and collaboration module analyzes the user's cooking habits by calling the built-in long short-term memory network (LSTM) of the cloud AI big model algorithm interface, predicts usage needs and establishes a variable frequency motor life model, and pushes maintenance suggestions when the time limit is exceeded; The equipment coordination unit of the autonomous learning and coordination module calls the electronic control and communication module to link the fresh air system and the intelligent lighting gateway based on the Zigbee / WiFi dual-mode protocol, and synchronously adjusts the lighting brightness and ventilation frequency when the range hood is operating in different gears.

Images