Control method and device of intelligent range hood and intelligent range hood

Abstract

This application discloses a control method, device, and intelligent range hood. The method includes: responding to a corresponding airflow adjustment command of the intelligent range hood, parsing and processing the airflow adjustment command to obtain the target operating level of the motor; acquiring real-time battery attribute information; determining the battery power level based on the real-time battery attribute information and preset battery attribute information; if the power level determination result indicates that the battery power meets the power requirements for the intelligent range hood to operate, generating a control command corresponding to the target operating level; sending the control command to the motor drive module; and causing the motor drive module to drive the motor to operate at the target operating level. This application enables the intelligent range hood to be powered solely by a battery, isolating it from mains power, thereby reducing the overall noise of the intelligent range hood.

Description

Technical Field

[0001] This application relates to the field of intelligent electrical appliance technology, and in particular to a control method, device, and intelligent range hood. Background Technology

[0002] With the improvement of living standards and the popularization of smart technology, home appliances are evolving towards intelligence and efficiency. Traditional household range hoods are mainly divided into AC range hoods and DC range hoods according to the type of motor and power supply. The former uses an AC motor and is directly powered by AC220V@50Hz mains power; the latter converts AC power into DC power to drive a DC motor through rectification and filtering. However, both types of products have obvious limitations: firstly, the power supply of industrial frequency AC is prone to cause structural resonance caused by the fundamental and higher harmonics of the motor during operation, resulting in greater noise; secondly, in particular, DC inverter range hoods generally have a power factor of less than 0.6, resulting in low energy utilization efficiency and placing a burden on the power grid.

[0003] With the rapid penetration of internet, artificial intelligence, and big data technologies, users have placed higher demands on home appliances for quiet operation, energy efficiency, and intelligent interaction. Therefore, driving the transformation of range hoods from traditional power supply and control models to intelligent and high-efficiency designs has become an inevitable trend in the industry. Summary of the Invention

[0004] This application provides a control method, device, and intelligent range hood, which can power the intelligent range hood solely through a battery, isolating it from mains power, thereby reducing the noise of the entire intelligent range hood.

[0005] On one hand, this application provides a control method for an intelligent range hood, wherein the intelligent range hood is equipped with a control module, a battery, a motor drive module, and a motor; the battery supplies power to the control module and the motor drive module; the motor drive module is used to drive the motor; the output terminal of the control module is connected to the input terminal of the motor drive module; the method includes: In response to the air volume adjustment command corresponding to the smart range hood, the air volume adjustment command is parsed and processed to obtain the target working level corresponding to the motor; Obtain the real-time battery attribute information of the battery; The battery power level is determined based on the real-time battery attribute information and the preset battery attribute information; the preset battery attribute information is the attribute information required by the battery to maintain the operation of the smart range hood. If the power determination result indicates that the battery power meets the power requirements for the operation of the smart range hood, a control command corresponding to the target operating level is generated; Send the control command to the motor drive module to cause the motor drive module to drive the motor to work at the target working gear.

[0006] In one exemplary embodiment, the real-time battery attribute information includes the current voltage value and current charge value of the battery; the preset battery attribute information includes a preset voltage value range and a preset charge threshold of the battery. The step of determining the battery power level based on the real-time battery attribute information and preset battery attribute information includes: The voltage judgment result of the battery is determined based on the current voltage value and the preset voltage value range; the preset voltage value range is the range of battery voltage values ​​when the battery power meets the power required for the operation of the smart range hood. If the voltage judgment result indicates that the current voltage value is within the preset voltage value range, the power judgment result is determined based on the current power value and the preset power threshold; the preset power threshold is the lower limit of the power required by the battery to operate the smart range hood.

[0007] In one exemplary embodiment, the intelligent range hood further includes a battery charger; the battery charger is electrically connected to the battery; after sending the control command to the motor drive module, the method further includes: When the smart range hood is in standby mode, the first voltage value of the battery is obtained; If the first voltage value is less than the lower limit of the preset voltage range, the battery charger is controlled to start charging the battery. During the battery charging process, the first charge level of the battery is obtained; If the first power value is within a preset power value range, the battery charger is turned off.

[0008] In one exemplary embodiment, the method for determining the preset power value range includes: During the operation of the motor, taking the moment when the motor starts working as the starting moment, a first set of voltage values ​​of the motor and a second set of voltage values ​​of the battery are obtained, and the current working mode of the smart range hood is determined based on the first set of voltage values ​​and the second set of voltage values. Receive the shutdown command corresponding to the smart range hood, control the motor to stop working, and take the moment when the motor stops working as the termination moment; Based on the start time, the end time, and the current operating mode, determine the second amount of electricity consumed by the battery during the operation of the motor; Based on the second power value and the preset power compensation value corresponding to the battery, a preset power value range corresponding to the battery is determined.

[0009] In one exemplary embodiment, determining the second amount of electricity consumed by the battery during the operation of the motor, based on the start time, the end time, and the current operating mode, includes: Calculate the difference between the termination time and the start time to obtain the time difference; If the current working mode is the first preset working mode, obtain the first preset energy compensation coefficient and preset power value corresponding to the battery; The second energy value is determined based on the first preset energy compensation coefficient, the preset power value, and the time difference value.

[0010] In one exemplary embodiment, after calculating the difference between the termination time and the start time to obtain the time difference, the method further includes: If the current working mode is the second preset working mode, obtain the second voltage value of the battery at the start time, the third voltage value of the battery at the end time, the current value of the motor during operation, and the second preset energy compensation coefficient corresponding to the battery; Calculate the difference between the second voltage value and the third voltage value to obtain the voltage difference; The second energy value is determined based on the second preset energy compensation coefficient, the voltage difference, the current value, and the time difference.

[0011] In one exemplary embodiment, a temperature sensor is disposed on the surface of the battery, and the method further includes: During the battery charging process, the current temperature value detected by the temperature sensor is acquired; If the current temperature value is greater than or equal to a preset temperature threshold, the battery charger is controlled to shut down; the preset temperature threshold is the upper limit of the battery temperature.

[0012] In one exemplary embodiment, after determining the current operating mode of the smart range hood based on the first voltage value set and the second voltage value set, the method further includes: If any voltage value in the first voltage value set is greater than or equal to a first preset voltage threshold, or if any voltage value in the first voltage value set is less than or equal to a second preset voltage threshold, fault information corresponding to the motor is generated; the second preset voltage threshold is less than the first preset voltage threshold. The fault information is sent to the terminal corresponding to the smart range hood so that the terminal displays the fault information.

[0013] On the other hand, a control method for an intelligent range hood is provided. The intelligent range hood includes a control module, a battery, a motor drive module, a motor, and a battery charger. The battery supplies power to the control module and the motor drive module. The motor drive module drives the motor. The output terminal of the control module is connected to the input terminal of the motor drive module. The battery charger is electrically connected to the battery. The method includes: In response to the air volume adjustment command corresponding to the smart range hood, the air volume adjustment command is parsed and processed to obtain the target working level corresponding to the motor; Obtain the real-time battery attribute information of the battery; the real-time battery attribute information includes the current voltage value and the current charge value of the battery; The voltage judgment result of the battery is determined based on the current voltage value and the preset voltage value range of the battery; the preset voltage value range is the range of battery voltage values ​​when the battery power meets the power required for the operation of the smart range hood. If the voltage judgment result indicates that the current voltage value is within the preset voltage value range, the battery power judgment result is determined based on the current power value and the battery's preset power threshold; the preset power threshold is the lower limit of power required for the battery to operate the smart range hood. If the power determination result indicates that the battery power meets the power requirements for the operation of the smart range hood, a control command corresponding to the target operating level is generated; Send the control command to the motor drive module to cause the motor drive module to drive the motor to work at the target operating gear. When the smart range hood is in standby mode, the first voltage value of the battery is obtained; If the first voltage value is less than the lower limit of the preset voltage range, the battery charger is controlled to start charging the battery. During the battery charging process, the first charge value of the battery and the current temperature value detected by the temperature sensor on the surface of the battery are acquired. If the current temperature value is greater than or equal to a preset temperature threshold, the battery charger is controlled to shut down; the preset temperature threshold is the upper limit of the battery temperature.

[0014] If the first power value is within a preset power value range, the battery charger is turned off.

[0015] The method for determining the preset power value range includes: During the operation of the motor, taking the moment when the motor starts working as the starting moment, a first set of voltage values ​​of the motor and a second set of voltage values ​​of the battery are obtained, and the current working mode of the smart range hood is determined based on the first set of voltage values ​​and the second set of voltage values. If any voltage value in the first voltage value set is greater than a first preset voltage threshold, or if any voltage value in the first voltage value set is less than a second preset voltage threshold, fault information corresponding to the motor is generated; the second preset voltage threshold is less than the first preset voltage threshold. The fault information is sent to the terminal corresponding to the smart range hood so that the terminal displays the fault information. If any voltage value in the first voltage value set is less than the first preset voltage threshold, or any voltage value in the first voltage value set is greater than the second preset voltage threshold, the corresponding shutdown command of the smart range hood is received, the motor is controlled to stop working, and the time when the motor stops working is taken as the termination time. Calculate the difference between the termination time and the start time to obtain the time difference; If the current working mode is the first preset working mode, obtain the first preset energy compensation coefficient and preset power value corresponding to the battery; Based on the first preset energy compensation coefficient, the preset power value, and the time difference value, the second power consumption value of the battery during the operation of the motor is determined.

[0016] If the current working mode is the second preset working mode, obtain the second voltage value of the battery at the start time, the third voltage value of the battery at the end time, the current value of the motor during operation, and the second preset energy compensation coefficient corresponding to the battery; Calculate the difference between the second voltage value and the third voltage value to obtain the voltage difference; Based on the second preset energy compensation coefficient, the voltage difference, the current value, and the time difference, the second amount of electricity consumed by the battery during the operation of the motor is determined.

[0017] Based on the second power value and the preset power compensation value corresponding to the battery, a preset power value range corresponding to the battery is determined.

[0018] On the other hand, a control device for an intelligent range hood is provided. The intelligent range hood includes a control module, a battery, a motor drive module, and a motor. The battery supplies power to both the control module and the motor drive module. The motor drive module drives the motor. The output terminal of the control module is connected to the input terminal of the motor drive module. The device includes: The parsing module is used to respond to the air volume adjustment command corresponding to the smart range hood, parse the air volume adjustment command, and obtain the target working level corresponding to the motor. The acquisition module is used to acquire real-time battery attribute information of the battery; The power level determination module is used to determine the power level of the battery based on the real-time battery attribute information and preset battery attribute information; the preset battery attribute information is the attribute information required by the battery to maintain the operation of the smart range hood. The control command generation module is used to generate a control command corresponding to the target working level if the power determination result indicates that the battery power meets the power requirements for the operation of the smart range hood. The working module is used to send the control command to the motor drive module so that the motor drive module drives the motor to work at the target working gear.

[0019] On the other hand, a smart range hood is provided, which is used to perform the control method of the smart range hood described above.

[0020] On the other hand, an electronic device is provided, the device including a processor and a memory, the memory storing at least one instruction or at least one program, the at least one instruction or the at least one program being loaded by the processor and executed as described above for the control method of the intelligent range hood.

[0021] On the other hand, a computer-readable storage medium is provided, wherein at least one instruction or at least one program is stored therein, the at least one instruction or at least one program being loaded and executed by a processor to implement the control method of the intelligent range hood as described above.

[0022] On the other hand, a computer program product or computer program is provided, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the control method for the intelligent range hood as described above.

[0023] This application provides a control method, device, and intelligent range hood, which has the following technical effects: Responding to the airflow adjustment command corresponding to the intelligent range hood, this application parses and processes the airflow adjustment command to obtain the target operating level corresponding to the motor; obtains the real-time battery attribute information of the battery; determines the battery power level based on the real-time battery attribute information and preset battery attribute information; the preset battery attribute information is the attribute information required by the battery to maintain the operation of the intelligent range hood; if the power level determination result indicates that the battery power meets the power requirements for the operation of the intelligent range hood, a control command corresponding to the target operating level is generated; the control command is sent to the motor drive module; so that the motor drive module drives the motor to operate at the target operating level. The system includes a control module, battery, motor drive module, and motor. When the user needs to use the smart range hood, it first determines whether the battery power is sufficient to maintain the operation of the range hood. If the battery power is sufficient, it generates control commands to drive the motor to operate at the target power level. This allows the smart range hood to be powered solely by the battery, isolating it from the mains power. This reduces the noise of the entire range hood. Furthermore, in this state, the phase difference between the mains voltage and the charging current is 0°, and the power factor is 1, improving the efficiency of energy conversion from mains power to battery power. Attached Figure Description

[0024] To more clearly illustrate the technical solutions and advantages in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the circuit functional modules of an intelligent range hood provided in the embodiments of this specification; Figure 2 This is a structural schematic diagram of the installation position of an energy storage battery provided in the embodiments of this specification; Figure 3 This is a flowchart illustrating a method of using an intelligent range hood provided in the embodiments of this specification; Figure 4 This is a schematic flowchart of a charging method for an intelligent range hood provided in the embodiments of this specification; Figure 5 This is a schematic flowchart of a temperature detection method for an intelligent range hood provided in the embodiments of this specification; Figure 6 This is a flowchart illustrating a control method for an intelligent range hood provided in the embodiments of this specification; Figure 7 This is a schematic diagram of the control device for the intelligent range hood provided in the embodiments of this specification; Figure 8 This is a schematic diagram of the server structure for a control method of an intelligent range hood provided in the embodiments of this specification. Detailed Implementation

[0026] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0028] The following describes a smart range hood based on this application. Figure 1 This is a schematic diagram of the circuit functional modules of a smart range hood provided in the embodiments of this specification, as labeled below: 101: AC power switch; The AC (alternating current) power switch directly controls whether AC 220V@50Hz AC mains power can enter the equipment; When the AC power switch is on, mains power input is allowed; when the AC power switch is off, mains power input is prohibited. 102: Battery charger; When connected to AC mains power, it converts AC220V@50Hz mains power into DC power suitable for energy storage batteries, and charges the energy storage batteries according to the constant current-constant voltage charging strategy, while outputting the voltage signal of the charging current.

[0029] 103: Energy Storage Battery; The energy storage battery is the power source for the smart range hood. In the embodiments described in this specification, based on the power output of the smart range hood, four 24V batteries are used, connected in series, providing a power supply of 24 x 4 = 96Vdc. The battery stores 2 kWh of energy. Structurally, it is installed at the air outlet of the fan frame of the smart range hood, close to the inner wall, and enclosed by a decorative range hood cover. Figure 2 As shown, Figure 2 This is a structural diagram of the installation position of an energy storage battery provided in an embodiment of this specification. The energy storage battery is composed of battery 1, battery 2, battery 3 and battery 4. The batteries of battery 1, battery 2, battery 3 and battery 4 are all 24V and connected in series. A range hood decorative cover 5 is provided on the outer surface of the energy storage battery, so that the whole assembly is set on the range hood switch 7. A range hood smoke collection cover 6 is also provided between the range hood switch 7 and the energy storage battery. 104: NTC temperature sensor; Each battery cell is equipped with an NTC temperature sensor to monitor the battery temperature; 105: Motor drive module; Enables the direct driving of DC motors by the electrical energy of the energy storage battery. The motor drive module adopts a 3-phase frequency conversion drive and simultaneously samples and detects the operating current of each phase of the DC motor in real time to ensure the balance of the winding current of each phase of the DC motor and avoid the occurrence of overcurrent or open circuit faults in a certain phase.

[0030] 106: DC motor; adopts a 3-phase DC motor with a rated voltage of 96V, matched with an energy storage battery, and has an output power of less than 500W (meets the power requirements of all current household range hoods).

[0031] 107: DC-DC power module; converts the power input from the battery into DC power for the controller system, so that no matter how the battery voltage changes (e.g., the voltage of a 96V battery will drop when it discharges), the DC-DC power module can provide a stable and clean DC operating voltage (e.g., 5V or 3.3V) for all low-voltage control circuits such as MCU, sensors, and display boards.

[0032] 108: MCU Control Center; Based on user instructions and system status, it controls the AC power switch, battery charger enable control, receives and processes charging current signals, monitors energy storage battery voltage signals, including monitoring the terminal voltage of each battery cell and the total voltage of series batteries; controls the output signals of the motor drive module, and receives the sampled voltage signals of the motor drive module's motor winding current. In actual use, when the smart range hood is in charging standby mode, after the range hood is turned off, the AC power switch is turned on, and the mains power is only connected to the battery charger to charge the energy storage battery. When the smart range hood is in cooking operation, the AC power switch is turned off, the motor is driven by the energy storage battery through the motor drive module, and the control module is powered by the energy storage battery through a DC-DC converter, thus isolating the smart range hood system from the mains power. The operating noise comes only from the high-speed rotation of the motor rotor and the sound of the wind. Specifically, for example... Figure 3 As shown, Figure 3 This is a flowchart illustrating a method of using a smart range hood provided in an embodiment of this specification, including: S301: User selects power output.

[0033] In the embodiments described in this specification, the user sets the desired airflow level via a panel or remote control, informing the MCU control center of the current load requirements.

[0034] S302: Turn off the AC power switch.

[0035] In the embodiments described in this specification, the MCU issues a command to turn off the AC power switch, thereby disconnecting the AC mains power input, cutting off grid interference, ensuring that the motor operates in a pure DC energy storage power supply environment, and achieving active noise reduction and electrical isolation.

[0036] S303: Turn off the battery charger.

[0037] In the embodiments described in this specification, the MCU shuts down the battery charger to stop it from working, thereby avoiding additional load or interference to the battery when the battery charger is working, and ensuring a stable and clean power supply for the motor.

[0038] S304: MCU control center detects energy storage battery voltage.

[0039] In the embodiments described in this specification, the MCU reads the actual voltage of the energy storage battery to obtain the initial state of the system and assess whether the battery is sufficient to support the safe operation of the range hood and whether it is sufficient to drive the motor.

[0040] S305: Determine if the battery meets the preset voltage parameters; if not, proceed to S313.

[0041] In the embodiments of this specification, the measured voltage is compared with the safe operating voltage. If the voltage is sufficient, the system is allowed to continue working to ensure the power output of the motor; if the voltage is too low, the system is shut down to prevent the battery from being over-discharged, thus protecting the battery life and safety.

[0042] S306: MCU outputs motor PWM drive signal.

[0043] In the embodiments described in this specification, the MCU sends a pulse width modulation (PWM) signal to the motor drive module to precisely control the motor speed and output power, thereby meeting the airflow set by the user.

[0044] S307: Motor drive module drives DC motor.

[0045] In the embodiments described in this specification, the motor drive module inverts DC power into three-phase frequency converter power, drives the motor to rotate, converts electrical energy into mechanical energy, and drives the fan to draw air.

[0046] S308: Outputs the sampling current signal of the 3-phase motor windings.

[0047] In the embodiments described in this specification, the current data of each phase of the motor is collected in real time and fed back to the MCU.

[0048] S309: Determine whether the motor winding current is open-circuited or overcurrent; if not, proceed to S311.

[0049] In the embodiments of this specification, the sampled current data is analyzed, and in the event of a hardware failure (such as phase loss or jamming), the machine is immediately shut down to prevent the motor from burning out or causing a fire.

[0050] S310: Turn off the range hood and output fault information.

[0051] In the embodiments described in this specification, if the motor malfunctions, the range hood will shut down and output fault information so that the user can be notified in time and repair the range hood.

[0052] S311: Determine whether the range hood is outputting constant current or constant power; if not, proceed to S306.

[0053] In the embodiments of this specification, it is determined whether the range hood is in constant current output mode or constant power output mode.

[0054] S312: Waiting for the user to finish shutting down.

[0055] In the embodiments described in this specification, the system maintains its current state and continues to run until the user finishes cooking and shuts down.

[0056] S313: Turn off the range hood and wait for it to charge.

[0057] In the embodiments described in this specification, when the energy storage battery is low on power, the range hood is turned off and the user waits to recharge.

[0058] In this embodiment, based on the user's power settings, the MCU first shuts off the AC power switch and battery charger, ensuring the range hood operates in a pure battery DC environment. This physically eliminates electromagnetic interference and low-frequency resonance noise caused by 50Hz AC power. During the preparation phase, a voltage pre-check is performed. Before starting the motor, the MCU must confirm that the battery voltage is within a preset safe range, effectively preventing damage caused by over-discharge and extending the battery's lifespan. Simultaneously, real-time current monitoring is performed. During motor operation, the system continuously collects the current signal from the three-phase windings to detect the motor's real-time status. When an abnormal load is detected (such as overcurrent or open circuit), the output is quickly adjusted or protection is triggered. By cutting off the AC power and using pure DC drive during operation, the power frequency electromagnetic noise and overall structural resonance caused by the AC grid in traditional range hoods are eliminated. Under the same testing conditions for range hoods, noise reduction reaches 5-10 dB.

[0059] Additionally, when the range hood is off and the battery needs charging, such as Figure 4 As shown, Figure 4 A flowchart illustrating a charging method for a smart range hood provided in this embodiment of the specification includes: S401: The range hood is off.

[0060] In the embodiments described in this specification, the system is in standby mode and no operation is performed. The system is only allowed to enter the background automatic charging mode when the power is off, so as to avoid accidental power disconnection or misoperation by the user.

[0061] S402: MCU detects the voltage of the energy storage battery.

[0062] In the embodiments described in this specification, the main control chip (MCU) in the smart range hood reads the current real-time voltage of the battery pack through the ADC channel to obtain the current state of charge (SoC) of the battery, which serves as the basis for subsequent decisions on whether to charge.

[0063] S403: Determine the battery voltage value to indicate whether the battery is fully charged; if so, proceed to S402.

[0064] In the embodiments described in this specification, the measured voltage is compared with the preset full-charge cutoff voltage; if the battery is fully charged, there is no need to waste mains power for ineffective charging, and it directly enters the protection state; if the battery is not fully charged, the charging program is started to ensure the battery life for the next use.

[0065] S404: Turn on the AC power switch.

[0066] In the embodiments described in this specification, the MCU turns on the AC power switch to connect to the 220V AC mains input.

[0067] S405: Turn on the battery charger.

[0068] In the embodiments described in this specification, the MCU turns on the battery charger, connects to the mains power, and charges the energy storage battery.

[0069] S406: Records battery charging current, voltage curve, and charging time.

[0070] In the embodiments described in this specification, the system stores dynamic data (battery charging current, voltage curve, and charging time) in real time during the charging process to determine whether the battery is fully charged. As the battery capacity increases, the battery voltage rises, and the charging current gradually decreases. By recording these trends, the internal state of the battery can be accurately assessed. S407: Determine if the battery is fully charged based on current, voltage, and charging time; if not, proceed to S406.

[0071] In the embodiments described in this specification, the MCU runs an algorithm to make a judgment based on multi-dimensional data; confirms that the battery has reached saturation to prevent overcharging from damaging the battery life; if it is not fully charged, the system needs to return to S406 to continue monitoring and charging in a loop until the conditions are met.

[0072] S408: Turn off the battery charger.

[0073] In the embodiments described in this specification, the MCU turns off the battery charger and immediately stops the charging process after confirming that the battery is fully charged, thus protecting the battery from overcharging damage.

[0074] S409: Turn off the AC power switch.

[0075] In the embodiments described in this specification, the MCU turns off the AC power switch to cut off the mains power input. After being fully charged, it turns off the external power supply to prevent standby power consumption and further isolates mains noise, keeping the machine in a clean shutdown state.

[0076] S410: Charging complete.

[0077] In the embodiments described in this specification, the entire charging process terminates, and the system returns to standby mode.

[0078] In this embodiment, voltage detection is used to determine whether the battery needs charging. Once charging is confirmed, the AC power switch and battery charger are turned on to introduce mains power. Combined with data recording and a multi-parameter comprehensive judgment mechanism, it is determined whether the battery has truly reached saturation. Simultaneously, after the charging cycle ends, the system actively disconnects the AC power switch and battery charger, achieving electrical isolation. Through the protection mechanisms of stopping charging when fully charged and preventing overcharging, the system effectively prevents the common risks of overcharging, bulging, overheating, and even fire associated with lithium or lead-acid batteries, maximizing the battery's chemical cycle life. Automatically disconnecting mains power after full charge eliminates unnecessary power loss in standby mode, conforming to the green energy-saving design concept. Furthermore, disconnecting mains power when the device is off completely eliminates the risk of electric shock during standby and potential electromagnetic interference introduced by mains power.

[0079] Additionally, during charging or power supply, the temperature of the energy storage battery surface is monitored to protect the battery. Specifically, for example... Figure 5 As shown, Figure 5 A flowchart illustrating a temperature detection method for an intelligent range hood provided in this specification includes: S501: Tests the temperature of the battery surface.

[0080] In the embodiments described in this specification, the system uses a built-in temperature sensor (such as an NTC thermistor) to collect real-time actual temperature data of the battery pack casing or interior to assess battery health and safety.

[0081] S502: Determine if the temperature meets the requirements; if not, proceed to S504.

[0082] In the embodiments described in this specification, the MCU compares the collected real-time temperature with the preset safe operating range, and determines the response strategy that the system should take based on different temperature ranges.

[0083] S503: Allows the range hood to operate or the battery to charge.

[0084] In the embodiments described in this specification, if the temperature is within a safe range and the system is powered normally, the user is allowed to start the range hood or the system will automatically begin charging.

[0085] S504: Operation and charging are prohibited.

[0086] In the embodiments described in this specification, if the temperature is too high (risk of thermal runaway) or too low (risk of lithium plating), the system forcibly disconnects the load and prohibits charging.

[0087] Before each load operation (smart range hood startup) or charging task, this embodiment first performs a precise test on the surface temperature of the energy storage battery. Then, the main control unit (MCU) compares the collected temperature data with a preset safe operating range. If the temperature is within the suitable range, the system determines that the battery is in a healthy electrochemical active state, and then unlocks and executes the corresponding operation or charging command. Conversely, if the temperature exceeds this range, the system will automatically activate a protection barrier, refusing to perform any high-power operation or energy injection behavior, and will usually be accompanied by a status indicator light to remind the user until the temperature returns to the safe threshold. In low-temperature environments, prohibiting charging effectively avoids the deposition of metallic lithium on the negative electrode surface (lithium deposition), preventing internal micro-short circuits and permanent capacity decay. In high-temperature environments, prohibiting operation and charging effectively suppresses the triggering of thermal runaway, avoiding serious safety accidents such as battery bulging, fire, or even explosion, greatly improving the product's safety. The battery always operates within the optimal temperature window, reducing internal material aging caused by temperature stress, effectively slowing down the rate of battery capacity decay, and significantly improving the battery's cycle life and overall reliability.

[0088] The following describes a control method for an intelligent range hood according to this application. Figure 6 This is a flowchart illustrating a control method for an intelligent range hood provided in an embodiment of this specification. This specification provides the operational steps of the method described in the embodiment or flowchart, but based on conventional or non-inventive labor, more or fewer operational steps may be included. The order of steps listed in the embodiment is merely one possible execution order among many and does not represent the only possible execution order. In actual system or server products, the method can be executed sequentially or in parallel (e.g., in a parallel processor or multi-threaded processing environment) as shown in the embodiment or accompanying drawings. Specifically, as... Figure 6 As shown, the intelligent range hood includes a control module, a battery, a motor drive module, and a motor; the battery supplies power to the control module and the motor drive module; the motor drive module drives the motor; the output terminal of the control module is connected to the input terminal of the motor drive module. This method can be applied to the control module of an intelligent range hood, and the method includes: S601: In response to the air volume adjustment command corresponding to the smart range hood, the air volume adjustment command is parsed and processed to obtain the target working level corresponding to the motor.

[0089] In the embodiments described in this specification, the intelligent range hood is equipped with a control module (MCU control center), a battery, a motor drive module, a motor, an AC power switch, a DC-DC conversion module, and a battery charger. The battery is electrically connected to the motor drive module and also to the control module; the battery supplies power to both the motor drive module and the control module; the AC power switch, battery charger, and battery are connected in sequence. When the battery needs charging, the control module controls the AC power switch and battery charger to turn on, supplying power to the battery; when the smart range hood needs to be used, the AC power switch and battery charger are turned off, and the smart range hood relies solely on battery power, isolating it from the mains power and eliminating the 50Hz power frequency noise, harmonic interference, and potential mechanical resonance caused by the mains power.

[0090] When a user needs to use the range hood, in response to the airflow adjustment command issued by the user, the workflow is initiated to parse and process the airflow adjustment command to obtain the target working level of the motor.

[0091] S603: Obtain the real-time battery attribute information of the battery.

[0092] In the embodiments of this specification, after receiving the airflow adjustment command issued by the user, in order to ensure the safe use of the smart range hood, it is necessary to determine whether the battery power is sufficient and obtain the real-time battery attribute information, specifically including the current voltage value and the current power value of the battery.

[0093] S605: Determine the battery power level based on the real-time battery attribute information and the preset battery attribute information; the preset battery attribute information is the attribute information required by the battery to maintain the operation of the smart range hood.

[0094] In the embodiments of this specification, the preset battery attribute information is the attribute information required for the battery to maintain the operation of the smart range hood; based on the real-time battery attribute information and the preset battery attribute information, the current open voltage of the battery is first detected, and the remaining power of the battery is judged based on the judgment result to obtain the battery power judgment result, thereby determining whether the battery power meets the requirements for the operation of the smart range hood.

[0095] S607: If the power determination result indicates that the battery power meets the power requirements for the operation of the smart range hood, generate the control command corresponding to the target operating level.

[0096] In the embodiments of this specification, if the power determination result indicates that the battery power is sufficient for the operation of the smart range hood, the AC power switch is disconnected from the battery charger, and a control command corresponding to the target operating level is generated to ensure that the smart range hood is powered only by the battery. This achieves physical isolation between the smart range hood and the mains power, eliminating power frequency noise and electromagnetic interference.

[0097] S609: Send the control command to the motor drive module to cause the motor drive module to drive the motor to work at the target working gear.

[0098] In the embodiments described in this specification, a control command is sent to the motor drive module. Specifically, the control command is a PWM drive signal. The motor drive module converts the PWM signal into six PWM drive signals that control the energizing sequence of the three-phase brushless DC motor windings. These six signals are amplified into high voltage and high current that can directly drive the motor windings. The motor receives the signal from the motor drive module and generates a rotating magnetic field to rotate, thus operating at the target working gear.

[0099] In the embodiments of this specification, the real-time battery attribute information includes the current voltage value and current charge value of the battery; the preset battery attribute information includes a preset voltage value range and a preset charge threshold of the battery. The step of determining the battery power level based on the real-time battery attribute information and preset battery attribute information includes: The voltage judgment result of the battery is determined based on the current voltage value and the preset voltage value range; the preset voltage value range is the range of battery voltage values ​​when the battery power meets the power required for the operation of the smart range hood. In the embodiments of this specification, the preset voltage range is the range of battery voltage values ​​when the battery power meets the power required for the smart range hood to operate. Specifically, the voltage values ​​within the preset voltage range are the voltage values ​​at which the battery power may meet the power required for the smart range hood to operate. The battery voltage is determined based on the current voltage value and the preset voltage range.

[0100] If the voltage judgment result indicates that the current voltage value is within the preset voltage value range, the power judgment result is determined based on the current power value and the preset power threshold; the preset power threshold is the lower limit of the power required by the battery to operate the smart range hood.

[0101] In the embodiments of this specification, for example, the battery is a 24V battery, with a preset minimum safe voltage of 21V, a charging threshold voltage of 23V, and a preset voltage range [21V, 23V]. If the voltage judgment result indicates that the current voltage value is within the preset voltage value range, it means that the battery's no-load voltage is at a plateau, and it is impossible to give a clear conclusion on whether the battery has sufficient power. Therefore, a second judgment is made on the battery power. Based on the current power value and the preset power threshold, the battery power judgment result is determined. The preset power threshold is the lower limit of power required for the smart range hood to work, which can be set according to the actual situation. When the current voltage value is within the preset voltage range, the current battery level needs to be calculated based on the amount of electricity consumed during the last use and the battery's total capacity. Specifically, the formula for calculating the current battery level is as follows:

[0102] This is the current battery charge level; the total battery capacity is the battery's nominal capacity, for example, 2 kWh. This represents the total amount of electricity consumed during the last operation, assuming the battery was fully charged at the start of the last operation. This is the SoC energy correction factor, used to compensate for losses such as self-discharge, and can generally be considered to be 0.95-1.

[0103] Additionally, if the current voltage is lower than the minimum safe voltage, it indicates that the battery is deeply discharged and low on power. In this case, the control module will refuse to start and will display a message indicating that the battery is low and needs to be charged. If the current voltage is greater than the charging threshold voltage, it indicates that the battery has sufficient charge, and control commands corresponding to the target operating level can be generated directly. First, the current battery voltage is used to screen and eliminate states that are extremely low or fully charged, ensuring safety and efficiency. When the voltage is in a difficult-to-determine plateau (preset voltage range), the current battery charge is calculated based on historical energy consumption, avoiding false alarms and sudden power outages. Users can receive accurate battery level indicators at any time, while protecting battery life.

[0104] In this embodiment of the specification, the intelligent range hood further includes a battery charger; the battery charger is electrically connected to the battery; after sending the control command to the motor drive module, the method further includes: When the smart range hood is in standby mode, the first voltage value of the battery is obtained; In the embodiments of this specification, when the smart range hood is in standby mode, that is, when the smart range hood is not in working state, the first voltage value of the battery is periodically detected to determine whether the battery has sufficient power and whether it needs to be charged.

[0105] If the first voltage value is less than the lower limit of the preset voltage range, the battery charger is controlled to start charging the battery. In the embodiments of this specification, the lower limit of the preset voltage range is the upper limit indicating that the battery power is insufficient. If the first voltage value is less than the lower limit of the preset voltage range, the charging process is triggered, the AC power switch is closed, AC220@50Hz mains power is connected, the battery charger is enabled, and the battery charging begins.

[0106] During the battery charging process, the first charge level of the battery is obtained; In the embodiments of this specification, during the battery charging process, the cumulative charging energy of the battery, i.e., the first energy value, is obtained. Specifically, the battery charger charges the battery using a two-stage charging strategy of constant current charging + constant voltage charging, and the charging current, battery terminal voltage, and charging time of the battery are obtained in real time. The formula for calculating the first energy value is as follows:

[0107] This is the initial charge level of the battery. The charging current compensation coefficient for the constant current charging stage can generally be between 1.05 and 1.1. The voltage increase during battery charging; This refers to the charging current value of the battery during the constant current phase, typically 0.1C. The charging time during the constant current charging phase of the battery; This refers to the hysteresis voltage difference of the battery during the constant voltage charging phase; for example, it can be 0~1V. The average charging current during the constant voltage charging phase of the battery can be 0.02C; The cumulative charging time during the constant voltage charging phase of the battery; Wherein, ΔV1 = V1 - Vd, V1 is the voltage value of the battery when it is in the charging state; Vd is the voltage value of the battery SOC state test before the smart range hood was in the state of operation before it was in the state of operation ended. During actual charging, the battery can be judged to be in constant current charging or constant voltage charging state based on the real-time voltage and current values. If the battery is in constant current charging state, the battery charger will keep the battery output current constant at a certain value. If the battery is in constant voltage charging state, the battery voltage will be close to the preset constant voltage value, and the battery charger will clamp the output voltage near the constant voltage value.

[0108] If the first power value is within a preset power value range, the battery charger is turned off.

[0109] In the embodiments of this specification, the preset power value range is the power value range calculated based on the previous discharge energy. If the first power value is within the preset power value range, it indicates that the battery's accumulated charging energy value has reached or slightly exceeded the battery's discharge energy value when the smart range hood was last used. In this case, the battery charger is controlled to turn off, the AC power switch is turned off, and the AC220@50Hz mains power is cut off. Alternatively, the battery can be determined to be fully charged when the battery voltage reaches the full charge voltage and the current drops to the trickle threshold. In this case, the battery charger is controlled to turn off, the AC power switch is turned off, and the AC220@50Hz mains power is cut off. Additionally, from an energy-saving perspective, the control module of the smart range hood is equipped with a 24-hour timer. This allows for off-peak power usage based on user habits. During peak hours, the range hood is powered by a battery, while during off-peak hours, stored energy from the mains is used for operation. For example, using a 2 kWh battery with a 500W smart range hood, theoretically, without considering losses, the battery can power the range hood for 4 hours, fully meeting the requirements of a household range hood. Therefore, the battery can be charged during off-peak hours. When the battery needs charging, the control module first turns on the AC power switch to connect to the mains, then enables the battery charger to begin charging. During this process, the control module calculates the initial charge level by sampling the battery voltage. Once fully charged, the battery charger is turned off and the AC power switch is disconnected, restoring the system to complete isolation from the mains power, thus ensuring charging safety and maintaining a state free from mains power interference.

[0110] In the embodiments of this specification, the method for determining the preset power value range includes: During the operation of the motor, taking the moment when the motor starts working as the starting moment, a first set of voltage values ​​of the motor and a second set of voltage values ​​of the battery are obtained, and the current working mode of the smart range hood is determined based on the first set of voltage values ​​and the second set of voltage values. In the embodiments described in this specification, the intelligent range hood has two output modes: constant power output mode and constant current output mode. A voltage signal is applied to the motor windings. The voltage can exist even when the motor is not working. Only when the motor is working normally will the voltage cause current to flow through the motor coil windings. By detecting the current in the motor windings, the state of the motor can be known. The current signal is usually obtained by sampling through a resistor and converting the current signal into a voltage signal. Therefore, during the operation of the motor, taking the moment when the motor starts working as the starting moment, the first voltage value set of the motor and the second voltage value set of the battery are obtained. Combining the first voltage value set of the motor and the sampling resistor, the current value set of the motor can be determined. Based on the current value set of the motor and the second voltage value set of the battery, the current working mode of the smart range hood can be determined. For example, when the smart range hood is in constant power output mode, the battery voltage will drop due to discharge. In order to maintain constant power, the control module will automatically increase the current. That is, the battery voltage drops slowly, and the motor current rises synchronously and continuously. The product of the two remains unchanged, so the smart range hood is in constant power mode at this time. When the smart range hood is in constant current output mode, the control module will maintain the motor current value at a set value regardless of changes in battery voltage. That is, if the motor current value remains stable during motor operation and does not increase as the battery voltage decreases, then the smart range hood is in constant current output mode.

[0111] Receive the shutdown command corresponding to the smart range hood, control the motor to stop working, and take the moment when the motor stops working as the termination moment; In the embodiments described in this specification, the motor continues to run until it receives a shutdown command corresponding to the smart range hood, which controls the motor to stop working, and the moment when the motor stops working is taken as the termination time.

[0112] Based on the start time, the end time, and the current operating mode, determine the second amount of electricity consumed by the battery during the operation of the motor; In the embodiments of this specification, the running time of the motor is determined based on the start time and the end time, and the second power consumption value of the battery during the operation of the motor is determined by combining the running time of the motor and the different current working modes of the smart range hood.

[0113] Based on the second power value and the preset power compensation value corresponding to the battery, a preset power value range corresponding to the battery is determined.

[0114] In the embodiments of this specification, the preset power compensation value corresponding to the battery is a correction value set considering the battery's charging efficiency, measurement error, etc., to avoid overcharging the battery; Based on the second battery charge value and the corresponding preset charge compensation value for the motor, a preset charge value range for the battery is determined: [second battery charge value - preset charge compensation value, second battery charge value + preset charge compensation value]. By obtaining the battery's cumulative second battery charge value and setting the preset charge compensation value, the risks of overcharging (leading to thermal runaway and battery life degradation) or undercharging (affecting battery life) that might occur if only the voltage value is used for judgment are effectively avoided. This ensures battery charging safety while optimizing battery health.

[0115] In this embodiment of the specification, determining the second amount of electricity consumed by the battery during the operation of the motor based on the start time, the end time, and the current operating mode includes: Calculate the difference between the termination time and the start time to obtain the time difference; In the embodiments of this specification, the difference between the termination time and the start time is calculated to obtain the time difference, which is the working time of the motor.

[0116] If the current working mode is the first preset working mode, obtain the first preset energy compensation coefficient and preset power value corresponding to the battery; In the embodiments of this specification, if the current working mode is the first preset working mode, i.e. constant power output mode, the first preset energy compensation coefficient and the preset power value corresponding to the battery are obtained. The first preset energy compensation coefficient is the energy loss correction coefficient of the motor, which is used to compensate for the efficiency loss (such as power conversion, motor drive, air duct friction, etc.) on the path from the battery to the motor. It can generally be selected between 1.05 and 1.1. The preset power value is the target output power value corresponding to the target working level.

[0117] The second energy value is determined based on the first preset energy compensation coefficient, the preset power value, and the time difference value.

[0118] In the embodiments of this specification, the product of the first preset energy compensation coefficient, the preset power value, and the time difference value is calculated to obtain the second power value. Note that this case takes the first preset working mode as an example for the entire working process of the motor. By associating the preset power value set by the user with the running time of the motor and combining it with the first preset energy compensation coefficient, the overall energy efficiency loss from the battery to the motor is effectively compensated. This allows the control module to quickly estimate the power consumption of this operation before operation and make a prediction based on the remaining battery power. This ensures that the smart range hood will not stop working due to insufficient power in the pure battery-powered silent mode, thus ensuring the continuity of user experience and noise reduction effect.

[0119] In this embodiment of the specification, after calculating the difference between the termination time and the start time to obtain the time difference, the method further includes: If the current working mode is the second preset working mode, obtain the second voltage value of the battery at the start time, the third voltage value of the battery at the end time, the current value of the motor during operation, and the second preset energy compensation coefficient corresponding to the battery; In the embodiments of this specification, the second preset working mode is a constant current output mode; if the current working mode is the second preset working mode, the second voltage value of the battery at the start time, the third voltage value of the battery at the end time, the current value during the operation of the motor, and the second preset energy compensation coefficient corresponding to the battery are obtained; wherein, the second preset energy compensation coefficient is the energy loss correction coefficient of the battery, which is used to compensate for circuit loss, and can generally be selected between 1.05 and 1.1.

[0120] Calculate the difference between the second voltage value and the third voltage value to obtain the voltage difference; In the embodiments of this specification, the difference between the second voltage value V3 and the third voltage value Vd is calculated to obtain the voltage difference ΔV3 = V3 - Vd.

[0121] The second energy value is determined based on the second preset energy compensation coefficient, the voltage difference, the current value, and the time difference.

[0122] In the embodiments of this specification, the second energy value is obtained by calculating the product of the second preset energy compensation coefficient, the voltage difference, the current value, and the time difference.

[0123] By measuring the actual voltage change during battery discharge, the influence of battery internal resistance and health on output capability is reflected. Using a constant discharge current as a benchmark, combined with the measured voltage difference and running time, the actual energy released by the battery is accurately measured. Then, by compensating for system losses through a second preset energy compensation coefficient, the reliability of power estimation is improved, and the misjudgment of power caused by changes in battery characteristics is effectively prevented, thereby enhancing the robustness and safety of the battery management system in the smart range hood.

[0124] In this embodiment of the specification, a temperature sensor is disposed on the surface of the battery, and the method further includes: During the battery charging process, the current temperature value detected by the temperature sensor is acquired; In the embodiments of this specification, a temperature sensor is provided on the surface of the battery, and the current temperature value detected by the temperature sensor is acquired during the battery charging process.

[0125] If the current temperature value is greater than or equal to a preset temperature threshold, the battery charger is controlled to shut down; the preset temperature threshold is the upper limit of the battery temperature.

[0126] In the embodiments described in this specification, the preset temperature threshold is the upper limit of the battery temperature. If the current temperature value is greater than or equal to the preset temperature threshold, it indicates that the battery temperature is too high, and the battery charger is controlled to shut down to stop charging the battery. Additionally, during motor operation, the temperature value detected by the temperature sensor is also acquired in real time to avoid risks caused by excessive battery temperature. By monitoring the battery surface temperature in real time, the control module can instantly detect abnormal temperature rises caused by overcharging, over-discharging, or internal short circuits. Once the temperature exceeds the safety threshold, the range hood is immediately shut off to cut off the discharge circuit, and the battery charger is stopped to cut off the input energy, thereby forcing the battery into a non-working state. This effectively interrupts the thermal runaway chain reaction and effectively prevents serious safety accidents such as permanent performance degradation, bulging, or even fire and explosion caused by battery overheating, greatly improving the reliability of battery use.

[0127] In this embodiment of the specification, after determining the current operating mode of the smart range hood based on the first voltage value set and the second voltage value set, the method further includes: If any voltage value in the first voltage value set is greater than a first preset voltage threshold, or if any voltage value in the first voltage value set is less than a second preset voltage threshold, fault information corresponding to the motor is generated; the second preset voltage threshold is less than the first preset voltage threshold. In the embodiments of this specification, during motor operation, faults such as overcurrent and open circuit may occur. Therefore, the current value of the motor is monitored in real time to avoid faults. The first preset voltage threshold is the product of the preset overcurrent protection threshold corresponding to the motor and the motor winding. The second preset voltage threshold is the product of the preset no-load current corresponding to the motor and the motor winding. Specifically, since the motor windings are fixed, the judgment can be made based on the motor voltage value. That is, if any voltage value in the first voltage value set is greater than the first preset voltage threshold, it indicates that the motor current may be too high due to faults such as stall, short circuit or abnormal load, resulting in overcurrent and risk of burning out the motor, and corresponding fault information of the motor is generated. If any voltage value in the first voltage value set is less than the second preset voltage threshold, it indicates that the motor current value drops sharply to near zero, which is determined to be an open circuit. The smart range hood will then malfunction, generating corresponding motor fault information. Specifically, the fault information may include, but is not limited to, fault codes, fault descriptions, fault parameters, timestamps, and handling suggestions. The fault code can be a unique combination of numbers or alphanumeric characters for quick fault lookup. The fault description can be concise, readable text (e.g., "motor A-phase overcurrent", "motor C-phase open circuit"). Fault parameters may include, but are not limited to, overcurrent value / faulty phase / motor speed and battery voltage. The timestamp is the specific time the fault occurred. The handling suggestions are basic steps to guide repair. For example, if the fault type is winding overcurrent, the generated fault information is: Fault Code E101, Fault Description: Motor A-phase current too high, Fault Parameters: Fault Current: 15.6A, Rated Current: 5.0A, Motor Speed: 320 RPM, Bus Voltage: 48.2V, Timestamp: xxxx year xx month xx day 14:30:25, Handling Suggestion: Immediately shut down all power outputs and enter the lockout protection state. Restart or reset is required. If the fault type is open circuit, the following fault information is generated: Fault Code E102, Fault Description: Motor C-phase current loss, Fault Parameters: U-phase current: 4.8A, V-phase current: 4.9A, W-phase current: 0.1A, Motor speed: 0. RPM, Timestamp: xxxx year xx month xx day 14:30:25, Handling Suggestion: Stop operation and trigger an alarm. Direct restart is usually allowed.

[0128] The fault information is sent to the terminal corresponding to the smart range hood so that the terminal displays the fault information.

[0129] In the embodiments described in this specification, fault information is sent to the terminal corresponding to the smart range hood so that the terminal can display the fault information for timely repair by the user. Once an overcurrent or open circuit is detected, the system immediately cuts off the drive signal, realizing the rapid shutdown of the smart range hood, effectively preventing faults such as motor overheating and burnout, and eliminating fire hazards caused by electrical abnormalities; at the same time, generating fault information simplifies the after-sales diagnostic process, and can guide users or repair personnel to quickly locate problems (such as whether the fan blades are blocked or the wiring is loose), significantly improving the reliability and maintainability of the smart range hood.

[0130] This manual also provides the control device for the intelligent range hood, such as... Figure 7 As shown, the device includes: The parsing module 701 is used to respond to the air volume adjustment command corresponding to the smart range hood, parse the air volume adjustment command, and obtain the target working level corresponding to the motor. The acquisition module 702 is used to acquire the real-time battery attribute information of the battery; The power level determination module 703 is used to determine the power level of the battery based on the real-time battery attribute information and preset battery attribute information; the preset battery attribute information is the attribute information required by the battery to maintain the operation of the smart range hood. The control command generation module 704 is used to generate a control command corresponding to the target working level if the power judgment result indicates that the power of the battery meets the power required for the operation of the smart range hood. The working module 705 is used to send the control command to the motor drive module so that the motor drive module drives the motor to work at the target working gear.

[0131] In some embodiments, the power consumption determination module further includes: The voltage judgment result determination submodule is used to determine the voltage judgment result of the battery based on the current voltage value and the preset voltage value range; the preset voltage value range is the range of battery voltage values ​​when the battery power meets the power required for the smart range hood to work. The power consumption judgment result determination submodule is used to determine the power consumption judgment result based on the current power consumption value and the preset power consumption threshold if the voltage judgment result indicates that the current voltage value is within the preset voltage value range; the preset power consumption threshold is the lower limit value of the power consumption required by the battery to meet the operation of the smart range hood.

[0132] In some embodiments, the apparatus further includes: The first voltage value acquisition module is used to acquire the first voltage value of the battery when the smart range hood is in standby mode. A charging module is used to control the battery charger to start charging the battery if the first voltage value is less than the lower limit of the preset voltage value range. The first power value acquisition module is used to acquire the first power value of the battery during the charging process of the battery; The charging stop module is used to control the battery charger to shut down if the first power value is within a preset power value range.

[0133] In some embodiments, the apparatus further includes: The current working mode determination module is used to obtain a first voltage value set of the motor and a second voltage value set of the battery, taking the moment when the motor starts working as the starting moment, and determine the current working mode of the smart range hood based on the first voltage value set and the second voltage value set. The shutdown module is used to receive the shutdown command corresponding to the smart range hood, control the motor to stop working, and take the moment when the motor stops working as the termination moment. The second power value determination module is used to determine the second power value consumed by the battery during the operation of the motor based on the start time, the end time and the current working mode. The preset power value range determination module is used to determine the preset power value range corresponding to the battery based on the second power value and the preset power compensation value corresponding to the battery.

[0134] In some embodiments, the second power value determination module further includes: The time difference determination submodule is used to calculate the difference between the termination time and the start time to obtain the time difference. The acquisition submodule is used to acquire the first preset energy compensation coefficient and preset power value corresponding to the battery if the current working mode is the first preset working mode. The second power value determination submodule is used to determine the second power value based on the first preset energy compensation coefficient, the preset power value, and the time difference value.

[0135] In some embodiments, the apparatus further includes: The battery information acquisition module is used to acquire, if the current working mode is the second preset working mode, the second voltage value of the battery at the start time, the third voltage value of the battery at the end time, the current value of the motor during operation, and the second preset energy compensation coefficient corresponding to the battery. A voltage difference determination module is used to calculate the difference between the second voltage value and the third voltage value to obtain the voltage difference. The second power value determination module is used to determine the second power value based on the second preset energy compensation coefficient, the voltage difference, the current value, and the time difference.

[0136] In some embodiments, the apparatus further includes: The current temperature value acquisition module is used to acquire the current temperature value detected by the temperature sensor during the battery charging process; The charging stop module is used to control the battery charger to shut down if the current temperature value is greater than or equal to a preset temperature threshold; the preset temperature threshold is the upper limit of the battery temperature.

[0137] In some embodiments, the apparatus further includes: The fault information generation module is used to generate fault information corresponding to the motor if any voltage value in the first voltage value set is greater than or equal to a first preset voltage threshold, or if any voltage value in the first voltage value set is less than or equal to a second preset voltage threshold; the second preset voltage threshold is less than the first preset voltage threshold. The fault information sending module is used to send the fault information to the terminal corresponding to the smart range hood, so that the terminal can display the fault information.

[0138] The apparatus and method embodiments described herein are based on the same inventive concept.

[0139] This specification provides an electronic device including a processor and a memory. The memory stores at least one instruction or at least one program, which is loaded and executed by the processor to implement the control method for the intelligent range hood provided in the above method embodiments.

[0140] The embodiments of this application also provide a computer storage medium, which can be disposed in a terminal to store at least one instruction or at least one program related to implementing the control method of an intelligent range hood in the method embodiments. The at least one instruction or at least one program is loaded and executed by the processor to implement the control method of the intelligent range hood provided in the above method embodiments.

[0141] Embodiments of this application also provide a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the control method for the intelligent range hood provided in the above-described method embodiments.

[0142] The memory described in the embodiments of this specification can be used to store software programs and modules. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for the functions, etc.; the data storage area may store data created according to the use of the device, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory may also include a memory controller to provide the processor with access to the memory.

[0143] The control method embodiments for the intelligent range hood provided in this specification can be executed on a mobile terminal, computer terminal, server, or similar computing device. Taking running on a server as an example, Figure 8 This is a hardware structure block diagram of a server for a control method of an intelligent range hood provided in the embodiments of this specification. (See diagram for example.) Figure 8 As shown, the server 800 can vary significantly due to different configurations or performance. It may include one or more Central Processing Units (CPUs) 810 (CPUs 810 may include, but are not limited to, microprocessors (MCUs) or programmable logic devices (FPGAs), a memory 830 for storing data, and one or more storage media 820 (e.g., one or more mass storage devices) for storing application programs 823 or data 822. The memory 830 and storage media 820 may be temporary or persistent storage. The program stored in the storage media 820 may include one or more modules, each module may include a series of instruction operations on the server. Furthermore, the CPU 810 may be configured to communicate with the storage media 820 and execute the series of instruction operations stored in the storage media 820 on the server 800. Server 800 may also include one or more power supplies 860, one or more wired or wireless network interfaces 850, one or more input / output interfaces 840, and / or one or more operating systems 821, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, etc.

[0144] The input / output interface 840 can be used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of server 800. In one example, the input / output interface 840 includes a network interface controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the input / output interface 840 may be a radio frequency (RF) module used for wireless communication with the Internet.

[0145] Those skilled in the art will understand that Figure 8 The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned electronic device. For example, server 800 may also include... Figure 8 The more or fewer components shown, or having the same Figure 8 The different configurations shown.

[0146] As can be seen from the above-described control method, device, and embodiments of the intelligent range hood provided in this application, in response to the airflow adjustment command corresponding to the intelligent range hood, this application parses and processes the airflow adjustment command to obtain the target operating level corresponding to the motor; obtains the real-time battery attribute information of the battery; determines the battery power level judgment result based on the real-time battery attribute information and preset battery attribute information; the preset battery attribute information is the attribute information required by the battery to maintain the operation of the intelligent range hood; if the power level judgment result indicates that the battery power meets the power required for the operation of the intelligent range hood, a control command corresponding to the target operating level is generated; the control command is sent to the motor drive module; so that the motor drive module drives the motor to operate at the target operating level. This intelligent range hood, equipped with a control module, battery, motor drive module, and motor, first checks if the battery has sufficient power to operate when needed. If so, it generates control commands to drive the motor to operate at the target setting. This allows the range hood to be powered solely by the battery, isolating it from mains power and reducing overall noise. The range hood uses an independent energy storage battery. During operation, the AC220V@50Hz power supply is isolated, preventing phase differences between the mains voltage and operating current. When the range hood is turned off, the AC220V@50Hz mains power is used to charge the energy storage battery via a battery charger. In this state, the phase difference between the mains voltage and charging current is 0°, resulting in a power factor of 1 and improved energy conversion efficiency from mains power to battery.

[0147] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments of this specification have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0148] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the embodiments of apparatus, devices, and storage media are basically similar to the method embodiments, so the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0149] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer storage medium, such as a read-only memory, a disk, or an optical disk.

[0150] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A control method of an intelligent range hood, characterized in that, The intelligent range hood is equipped with a control module, a battery, a motor drive module, and a motor; the battery supplies power to the control module and the motor drive module. The motor drive module is used to drive the motor; The output terminal of the control module is connected to the input terminal of the motor drive module; the method includes: In response to the air volume adjustment command corresponding to the smart range hood, the air volume adjustment command is parsed and processed to obtain the target working level corresponding to the motor; Obtain the real-time battery attribute information of the battery; The battery power level is determined based on the real-time battery attribute information and the preset battery attribute information; the preset battery attribute information is the attribute information required by the battery to maintain the operation of the smart range hood. If the power determination result indicates that the battery power meets the power requirements for the operation of the smart range hood, a control command corresponding to the target operating level is generated; Send the control command to the motor drive module to cause the motor drive module to drive the motor to work at the target working gear.

2. The method of claim 1, wherein, The real-time battery attribute information includes the current voltage value and current charge value of the battery; the preset battery attribute information includes the preset voltage value range and preset charge threshold of the battery. The step of determining the battery power level based on the real-time battery attribute information and preset battery attribute information includes: The voltage judgment result of the battery is determined based on the current voltage value and the preset voltage value range; the preset voltage value range is the range of battery voltage values ​​when the battery power meets the power required for the operation of the smart range hood. If the voltage judgment result indicates that the current voltage value is within the preset voltage value range, the power judgment result is determined based on the current power value and the preset power threshold; the preset power threshold is the lower limit of the power required by the battery to operate the smart range hood.

3. The method of claim 2, wherein, The intelligent range hood also includes a battery charger; the battery charger is electrically connected to the battery; after sending the control command to the motor drive module, the method further includes: When the smart range hood is in standby mode, the first voltage value of the battery is obtained; If the first voltage value is less than the lower limit of the preset voltage range, the battery charger is controlled to start charging the battery. During the battery charging process, the first charge level of the battery is obtained; If the first power value is within a preset power value range, the battery charger is turned off.

4. The method of claim 3, wherein, The method for determining the preset power value range includes: During the operation of the motor, taking the moment when the motor starts working as the starting moment, a first set of voltage values ​​of the motor and a second set of voltage values ​​of the battery are obtained, and the current working mode of the smart range hood is determined based on the first set of voltage values ​​and the second set of voltage values. Receive the shutdown command corresponding to the smart range hood, control the motor to stop working, and take the moment when the motor stops working as the termination moment; Based on the start time, the end time, and the current operating mode, determine the second amount of electricity consumed by the battery during the operation of the motor; Based on the second power value and the preset power compensation value corresponding to the battery, a preset power value range corresponding to the battery is determined.

5. The method of claim 4, wherein, Determining the second charge value consumed by the battery during the operation of the motor based on the start time, the end time, and the current operating mode includes: Calculate the difference between the termination time and the start time to obtain the time difference; If the current working mode is the first preset working mode, obtain the first preset energy compensation coefficient and preset power value corresponding to the battery; The second energy value is determined based on the first preset energy compensation coefficient, the preset power value, and the time difference value.

6. The method of claim 5, wherein, After calculating the difference between the termination time and the start time to obtain the time difference, the method further includes: If the current working mode is the second preset working mode, obtain the second voltage value of the battery at the start time, the third voltage value of the battery at the end time, the current value of the motor during operation, and the second preset energy compensation coefficient corresponding to the battery; Calculate the difference between the second voltage value and the third voltage value to obtain the voltage difference; The second energy value is determined based on the second preset energy compensation coefficient, the voltage difference, the current value, and the time difference.

7. The method of claim 1, wherein, A temperature sensor is disposed on the surface of the battery, and the method further includes: During the battery charging process, the current temperature value detected by the temperature sensor is acquired; If the current temperature value is greater than or equal to a preset temperature threshold, the battery charger is controlled to shut down; the preset temperature threshold is the upper limit of the battery temperature.

8. The method of claim 4, wherein, After determining the current operating mode of the smart range hood based on the first voltage value set and the second voltage value set, the method further includes: If any voltage value in the first voltage value set is greater than or equal to a first preset voltage threshold, or if any voltage value in the first voltage value set is less than or equal to a second preset voltage threshold, fault information corresponding to the motor is generated; the second preset voltage threshold is less than the first preset voltage threshold. The fault information is sent to the terminal corresponding to the smart range hood so that the terminal displays the fault information.

9. A control device of an intelligent range hood, characterized in that, The intelligent range hood is equipped with a control module, a battery, a motor drive module, and a motor; the battery supplies power to both the control module and the motor drive module. The motor drive module is used to drive the motor; The output terminal of the control module is connected to the input terminal of the motor drive module; the device includes: The parsing module is used to respond to the air volume adjustment command corresponding to the smart range hood, parse the air volume adjustment command, and obtain the target working level corresponding to the motor. The acquisition module is used to acquire real-time battery attribute information of the battery; The power level determination module is used to determine the power level of the battery based on the real-time battery attribute information and preset battery attribute information; the preset battery attribute information is the attribute information required by the battery to maintain the operation of the smart range hood. The control command generation module is used to generate a control command corresponding to the target working level if the power determination result indicates that the battery power meets the power requirements for the operation of the smart range hood. The working module is used to send the control command to the motor drive module so that the motor drive module drives the motor to work at the target working gear.

10. A smart range hood, characterized in that, The intelligent range hood is used to execute the control method of the intelligent range hood as described in claims 1-8 above.

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