An extractor hood and a control method and device for a smoke baffle of the extractor hood, and an electronic device

Abstract

The oil smoke machine, the oil smoke machine smoke baffle control method and device and the electronic equipment are disclosed. The oil smoke machine smoke baffle is provided with a gyroscope sensor. The gyroscope sensor is parallel to the oil smoke machine smoke baffle and moves with the oil smoke machine smoke baffle. The gyroscope sensor and the oil smoke machine smoke baffle are relatively stationary during movement. The control method comprises the following steps: obtaining a current rotation angle output by the gyroscope sensor; determining a relative angle of the current rotation angle relative to a first preset angle. The first preset angle indicates a rotation angle corresponding to the gyroscope sensor when the oil smoke machine smoke baffle is in a closed position. Based on the relative angle, the current position of the oil smoke machine smoke baffle is determined. The current position indicates the rotation angle of the oil smoke machine smoke baffle relative to the closed position. The application solves the problem of inaccurate oil smoke machine smoke baffle position determination, error accumulation to a certain extent leading to blocked rotation or position error, and can accurately determine the position of the oil smoke machine smoke baffle.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a range hood, a method, device, and electronic device for controlling the range hood's smoke baffle. Background Technology

[0002] Side-draft range hoods typically have an automatically opening and closing smoke baffle. When the range hood is working, the smoke baffle is usually opened to its maximum angle. When the range hood is not working, the smoke baffle will be completely closed. Currently, there are several methods to determine the position of the range hood smoke baffle:

[0003] 1. The range hood's smoke baffle is determined by the stall current. However, the stall method can only determine the position of the smoke baffle when it is fully open or fully closed. If the smoke baffle stops in the middle, its position cannot be determined, and each stall will damage the moving mechanism.

[0004] 2. Judging by mechanical limit switches or simple switch signals has problems such as low accuracy and easy misjudgment;

[0005] 3. When using a Hall sensor to determine the position, there may be issues. If the brake is not applied in time when the moving push rod stops, the waveform may be incomplete or elongated before stopping. This can cause the Hall sensor reading to be lower than the actual data, resulting in an error. When the start and stop operations are repeated, the error accumulates and increases, making the determined position inaccurate. Summary of the Invention

[0006] This application provides a range hood and a method, device, and electronic equipment for controlling the range hood's smoke baffle, to at least solve the problem of inaccurate position judgment of the range hood's smoke baffle, where accumulated errors lead to stalling or incorrect positioning. The technical solution of this application is as follows:

[0007] According to a first aspect of the embodiments of this application, a method for controlling a smoke baffle of a range hood is provided. The smoke baffle is mounted on a fixed axis of the range hood and rotates around the fixed axis. A gyroscope sensor is mounted on the smoke baffle, the gyroscope sensor is parallel to the smoke baffle and moves with the smoke baffle, and the gyroscope sensor and the smoke baffle remain relatively stationary during the movement. The method includes:

[0008] Obtain the current rotation angle output by the gyroscope sensor;

[0009] The relative angle of the current rotation angle with respect to a first preset angle is determined, wherein the first preset angle indicates the rotation angle corresponding to the gyroscope sensor when the range hood baffle is in the closed position;

[0010] Based on the relative angle, the current position of the range hood baffle is determined, and the current position indicates the rotation angle of the range hood baffle relative to the closed position.

[0011] In some exemplary embodiments, determining the current position of the range hood baffle based on the relative angle includes:

[0012] If the difference between the relative angle and the first preset angle is less than a preset angle threshold, the range hood baffle is determined to be in a closed position.

[0013] When the relative angle reaches the second preset angle, it is determined that the range hood baffle is in the fully open position. The second preset angle indicates the rotation angle corresponding to the gyroscope sensor when the range hood baffle is in the fully open position.

[0014] In some exemplary embodiments, the method further includes:

[0015] When the relative angle is between the first preset angle and the second preset angle, the change in the relative angle is obtained;

[0016] The motion state of the range hood baffle is determined based on the change in the relative angle.

[0017] In some exemplary embodiments, determining the motion state of the range hood baffle based on the change in the relative angle includes:

[0018] When the change in the relative angle is less than a preset change threshold, the movement state of the range hood baffle is determined to be that it has not encountered any obstacles.

[0019] When the change in the relative angle is greater than or equal to the preset change threshold, the movement state of the range hood baffle is determined to be encountering an obstacle.

[0020] In some exemplary embodiments, when the range hood baffle plate encounters an obstacle during its movement, the method further includes:

[0021] Control the range hood's smoke baffle to stop moving, or control the range hood's smoke baffle to move in the opposite direction to its current direction of movement.

[0022] In some exemplary embodiments, the current position of the range hood baffle indicates the current opening angle of the range hood baffle, and the method further includes:

[0023] The maximum speed of the range hood's fan motor is calculated based on the current opening angle; the expression for the maximum speed is ωmax = h(θ), where ωmax is the maximum speed and θ is the current opening angle; the maximum speed ωmax is the maximum speed at which the fan motor allows the range hood's smoke baffle to open when the current opening angle θ is θ and the fan motor is turned on with maximum torque;

[0024] Determine whether the current rotation speed is less than or equal to the maximum rotation speed. If so, determine whether the current opening angle has reached the preset smoke baffle angle. If so, control the smoke baffle of the range hood to stop moving.

[0025] In some exemplary embodiments, the method further includes:

[0026] Obtain the current rotational speed of the fan motor;

[0027] If it is determined that the current rotation speed is greater than the maximum rotation speed, the current rotation speed is reduced until the reduced current speed is less than or equal to the maximum rotation speed. Then, it is determined whether the current opening angle has reached the preset smoke baffle angle. If so, the smoke baffle of the range hood is controlled to stop moving.

[0028] According to a second aspect of the embodiments of this application, a range hood smoke baffle control device is provided. The range hood smoke baffle is mounted on a fixed shaft of the range hood and rotates around the fixed shaft. A gyroscope sensor is mounted on the range hood smoke baffle, the gyroscope sensor is parallel to the range hood smoke baffle and moves with the smoke baffle, and the gyroscope sensor and the range hood smoke baffle remain relatively stationary during the movement; the device includes:

[0029] The current rotation angle acquisition unit is configured to acquire the current rotation angle output by the gyroscope sensor;

[0030] The relative angle determination unit is configured to determine the relative angle of the current rotation angle with respect to a first preset angle, wherein the first preset angle indicates the rotation angle corresponding to the gyroscope sensor when the range hood baffle is in the closed position.

[0031] The current position determination unit is configured to determine the current position of the range hood baffle plate based on the relative angle, wherein the current position indicates the rotation angle of the range hood baffle plate relative to the closed position.

[0032] In some exemplary embodiments, the current location determination unit includes:

[0033] The closed position determination unit is configured to determine that the range hood baffle is in a closed position when the difference between the relative angle and the first preset angle is less than a preset angle threshold.

[0034] The fully open position determination unit is configured to determine that the range hood baffle is in the fully open position when the relative angle reaches a second preset angle. The second preset angle indicates the rotation angle of the gyroscope sensor when the range hood baffle is in the fully open position.

[0035] In some exemplary embodiments, the apparatus further includes:

[0036] The relative angle change acquisition unit is configured to acquire the change in relative angle when the relative angle is between a first preset angle and a second preset angle.

[0037] The motion state determination unit is configured to determine the motion state of the range hood baffle plate based on the change in relative angle.

[0038] In some exemplary embodiments, the motion state determination unit includes:

[0039] The obstacle-free determination unit is configured to determine that the movement state of the range hood baffle is "obstacle-free" when the change in relative angle is less than a preset change threshold.

[0040] The obstacle detection unit is configured to determine that the range hood baffle plate is encountering an obstacle when the change in relative angle is greater than or equal to a preset change threshold.

[0041] In some exemplary embodiments, the apparatus further includes:

[0042] The motion state control unit is configured to, when the range hood baffle encounters an obstacle, control the range hood baffle to stop moving, or control the range hood baffle to move in the opposite direction to the current direction of movement.

[0043] In some exemplary embodiments, the apparatus further includes:

[0044] The maximum speed calculation unit for the fan motor is configured to execute the current position indication of the range hood's smoke baffle, indicating the current opening angle of the smoke baffle, and calculate the maximum speed of the range hood's fan motor based on the current opening angle; the expression for the maximum speed is ωmax=h(θ), where ωmax is the maximum speed and θ is the current opening angle; the maximum speed at which the fan motor allows the range hood's smoke baffle to open is when the maximum speed ωmax is the current opening angle θ and the fan motor is turned on at maximum torque;

[0045] The first stop motion determination unit is configured to determine whether the current rotation speed is less than or equal to the maximum rotation speed. If so, it determines whether the current opening angle has reached the preset smoke baffle angle. If so, it controls the smoke baffle of the range hood to stop moving.

[0046] In some exemplary embodiments, the apparatus further includes:

[0047] The current speed acquisition unit for the wind turbine motor is configured to acquire the current speed of the wind turbine motor.

[0048] The second stop motion determination unit is configured to perform the following actions: if it is determined that the current rotation speed is greater than the maximum rotation speed, then reduce the current rotation speed until the reduced current speed is less than or equal to the maximum rotation speed, then determine whether the current opening angle has reached the preset smoke baffle angle, and if so, control the smoke baffle of the range hood to stop moving.

[0049] According to a third aspect of the embodiments of this application, a range hood is provided, the range hood including the range hood baffle control device of the second aspect described above.

[0050] According to a fourth aspect of the embodiments of this application, an electronic device is provided, comprising:

[0051] processor;

[0052] Memory used to store the processor's executable instructions;

[0053] The processor is configured to execute the instructions to implement the range hood baffle control method of the first aspect described above.

[0054] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application.

[0055] The technical solutions provided by the embodiments of this application have at least the following beneficial effects:

[0056] In this embodiment, a smoke baffle is mounted on a fixed shaft of the range hood and rotates around the fixed shaft. A gyroscope sensor is mounted on the smoke baffle, parallel to it and moving with it. The gyroscope sensor and the smoke baffle remain relatively stationary during the movement. This embodiment acquires the current rotation angle output by the gyroscope sensor; determines the relative angle of the current rotation angle with respect to a first preset angle, which indicates the rotation angle of the gyroscope sensor when the smoke baffle is in a closed position; and determines the current position of the smoke baffle based on the relative angle, where the current position indicates the rotation angle of the smoke baffle relative to the closed position. This application solves the problem of inaccurate position determination of the smoke baffle, where accumulated errors lead to stalling or incorrect positioning, and can accurately determine the position of the smoke baffle. Attached Figure Description

[0057] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0058] Figure 1 The flowchart of the range hood baffle control method provided in the embodiments of this application Figure 1 ;

[0059] Figure 2 The flowchart of the range hood baffle control method provided in the embodiments of this application Figure 2 ;

[0060] Figure 3 The flowchart of the range hood baffle control method provided in the embodiments of this application Figure 3 ;

[0061] Figure 4 The flowchart of the range hood baffle control method provided in the embodiments of this application Figure 4 ;

[0062] Figure 5 The flowchart of the range hood baffle control method provided in the embodiments of this application Figure 5 ;

[0063] Figure 6 The flowchart of the range hood baffle control method provided in the embodiments of this application Figure 6 ;

[0064] Figure 7 A block diagram of a range hood baffle control device provided in an embodiment of this application;

[0065] Figure 8 This is a block diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0066] 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 specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0067] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention 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 the invention 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.

[0068] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0069] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0070] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0071] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed description. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0072] In a method for controlling a range hood baffle according to an embodiment of this application, the range hood baffle is installed on the fixed shaft of the range hood and rotates around the fixed shaft. A gyroscope sensor is installed on the range hood baffle. The gyroscope sensor is parallel to the range hood baffle and moves with the range hood baffle. The gyroscope sensor and the range hood baffle are relatively stationary during the movement. Figure 1 This diagram illustrates a flow chart of a range hood baffle control method according to an embodiment of this application. Figure 1 The above methods include:

[0073] In step S101, the current rotation angle output by the gyroscope sensor is obtained.

[0074] Specifically, a gyroscope sensor is a device used to detect and measure the rotation angle and angular velocity of an object, and its working principle is mainly based on the law of conservation of angular momentum. This application mounts a gyroscope sensor on a range hood baffle, parallel to the baffle. The baffle rotates around a fixed axis, and the gyroscope sensor rotates with it. During the movement, the gyroscope sensor and the baffle remain relatively stationary. The gyroscope sensor and the baffle move synchronously, and the current rotation angle is obtained by outputting the current rotation angle of the baffle.

[0075] In step S102, the relative angle of the current rotation angle with respect to the first preset angle is determined. The first preset angle indicates the rotation angle corresponding to the gyroscope sensor when the range hood baffle is in the closed position.

[0076] Specifically, when the range hood baffle is in the closed position, it usually means that when the range hood is not working, the baffle is parallel to or tightly fitted to the main body of the range hood. The first preset angle indicates that when the range hood baffle is in the closed position, the rotation angle corresponding to the gyroscope sensor can be 0 degrees.

[0077] In step S103, the current position of the range hood baffle is determined based on the relative angle. The current position indicates the rotation angle of the range hood baffle relative to the closed position.

[0078] Specifically, by determining the relative angle of the gyroscope sensor with respect to the reference axis or the main body of the range hood, the angle between the range hood's smoke baffle and the reference axis or the main body of the range hood when it is in the open state is determined, thereby accurately determining the current position of the range hood's smoke baffle.

[0079] In the above embodiments, when the range hood baffle rotates, the gyroscope sensor measures the rotation angle of the range hood baffle relative to the reference axis or the main body of the range hood in real time based on the reference axis or the movement of the main body of the range hood. This accurately determines the current position of the range hood baffle, solving the problem of inaccurate baffle position judgment and the accumulation of errors leading to stalling or incorrect positioning. The position of the range hood baffle can be accurately determined.

[0080] Figure 2 A flowchart illustrating the range hood baffle control method according to an embodiment of this application is shown. Figure 2 ,like Figure 2 As shown, the above method of determining the current position of the range hood's smoke baffle based on relative angle includes:

[0081] In step S201, if the difference between the relative angle and the first preset angle is less than the preset angle threshold, it is determined that the range hood baffle is in the closed position.

[0082] Specifically, when the relative angle is equal to the first preset angle, the range hood baffle is parallel to or closely fitted to the main body of the range hood, and the range hood baffle is closed.

[0083] In step S202, when the relative angle reaches the second preset angle, it is determined that the range hood baffle is in the fully open position. The second preset angle indicates the rotation angle of the gyroscope sensor when the range hood baffle is in the fully open position.

[0084] Specifically, when the range hood's smoke baffle is fully open, it extends outwards or upwards at a certain angle, forming a larger smoke collection area to more effectively capture and collect the fumes generated during cooking. The opening angle of the fully open smoke baffle depends on the range hood's design; common range hoods typically have an angle between 60 and 90 degrees, but this angle is not fixed and may vary between different brands and models. During cooking, especially when stir-frying or other cooking activities that produce a lot of fumes, the smoke baffle is in the fully open position.

[0085] In the above embodiments, it is possible to accurately determine whether the range hood baffle is in a closed position or a fully open position, thereby improving the accuracy of the range hood baffle angle recognition.

[0086] Figure 3 A flowchart illustrating the range hood baffle control method according to an embodiment of this application is shown. Figure 3 ,like Figure 3 As shown, the above method also includes:

[0087] In step S301, when the relative angle is between the first preset angle and the second preset angle, the change in the relative angle is obtained.

[0088] In step S302, the motion state of the range hood baffle is determined based on the change in relative angle.

[0089] Specifically, when the relative angle is between the first preset angle and the second preset angle, that is, when the range hood baffle is in the middle position, the change in relative angle refers to the change in angular velocity of the range hood baffle during rotation. The gyroscope sensor mentioned above can obtain the change in angular velocity of the range hood baffle during rotation. Based on the change in angular velocity, the motion state of the range hood baffle is determined. This motion state includes uniform motion and non-uniform motion. In the case of uniform motion, the range hood baffle opens and closes normally. In the case of non-uniform motion, the range hood baffle collides with obstacles or pinches a hand when opening and closing.

[0090] In the above embodiments, the movement state of the range hood baffle is determined by the change in relative angle, and the range hood baffle is detected in a timely manner whether it encounters obstacles or gets caught in a hand, thereby improving the safety of the range hood baffle control and thus enhancing the product performance of the range hood.

[0091] Figure 4 A flowchart illustrating the range hood baffle control method according to an embodiment of this application is shown. Figure 4 ,like Figure 4 As shown, the determination of the motion state of the range hood baffle plate based on the change in relative angle includes:

[0092] In step S401, when the change in relative angle is less than a preset change threshold, the motion state of the range hood baffle is determined to be that it has not encountered any obstacles.

[0093] In step S402, when the change in relative angle is greater than or equal to a preset change threshold, the motion state of the range hood baffle is determined to be encountering an obstacle.

[0094] Specifically, during the movement of the range hood's smoke baffle, it moves at a constant speed under normal circumstances. When the range hood's smoke baffle collides with an obstacle or gets caught in a hand, its angular velocity will fluctuate. When the fluctuation range of the angular velocity exceeds the preset change threshold, it is considered that the current movement of the range hood's smoke baffle is restricted, and it is judged that it has collided with an obstacle or caught a hand.

[0095] The above embodiments can improve the accuracy and stability of obstacle or hand-clamping detection, thereby improving the safety of range hood baffle control and enhancing the product performance of the range hood.

[0096] Figure 5A flowchart illustrating the range hood baffle control method according to an embodiment of this application is shown. Figure 5 ,like Figure 5 As shown, when the range hood baffle plate encounters an obstacle during its movement, the above method further includes:

[0097] In step S501, the range hood baffle is controlled to stop moving, or the range hood baffle is controlled to move in the opposite direction to the current direction of movement.

[0098] Specifically, when the range hood's smoke baffle encounters an obstacle, a warning is issued and the movement of the smoke baffle is stopped, or the smoke baffle is moved in the opposite direction to its current movement.

[0099] In the above embodiments, when the range hood baffle is detected to collide with an obstacle or pinch a hand, the range hood baffle is promptly controlled to stop moving, or the range hood baffle is controlled to move in the opposite direction to the current direction of movement. This can effectively prevent personal injury or overturning of kitchen utensils during the opening and closing of the range hood baffle, prevent hand pinching, and improve the safety of the range hood baffle.

[0100] Figure 6 A flowchart illustrating the range hood baffle control method according to an embodiment of this application is shown. Figure 6 ,like Figure 6 As shown, the current position of the range hood baffle indicates the current opening angle of the range hood baffle. The method also includes:

[0101] In step S601, the maximum speed of the range hood's fan motor is calculated based on the current opening angle; the expression for the maximum speed is ωmax=h(θ), where ωmax is the maximum speed and θ is the current opening angle; the maximum speed ωmax is the maximum speed at which the fan motor allows the range hood's smoke baffle to open when the current opening angle θ is θ and the fan motor is turned on with maximum torque.

[0102] In step S602, it is determined whether the current rotation speed is less than or equal to the maximum rotation speed. If so, it is determined whether the current opening angle has reached the preset smoke baffle angle. If so, the smoke baffle of the range hood is controlled to stop moving.

[0103] Specifically, the maximum speed (i.e., the maximum constraint speed) of the range hood fan motor is obtained based on the current opening angle of the range hood baffle. This maximum speed constrains the negative pressure generated by the range hood fan motor during operation, ensuring that the baffle drive motor can open the baffle normally. The method for obtaining the maximum speed ωmax of the fan motor at the current opening angle θ of the range hood baffle requires pre-setting the range hood baffle opening angle to θ1. With the fan maintaining steady operation, the range hood baffle fan motor opens at maximum torque, allowing the maximum speed ωmax1 for the fan motor to open the baffle. Continuous testing within the angle range [0, θmax] yields a single mapping relationship of [ωmax_min, ωmax_max]. Preferably, the speed range is [ωmax_min, ωmax_max], with measured values ​​of [200, 2500] rpm. Based on the maximum speed, if it is confirmed that the current speed is less than or equal to the maximum speed, and then it is determined that the current opening angle has reached the preset smoke baffle angle, the smoke baffle of the range hood will be controlled to stop moving.

[0104] In the above embodiments, the negative pressure generated when the range hood's fan motor is running can be constrained, ensuring that the baffle drive motor can open the baffle normally, thus overcoming the misjudgment of the baffle adjustment angle caused by long-term operation of the range hood.

[0105] In some exemplary embodiments, the above method further includes:

[0106] Get the current speed of the fan motor;

[0107] If it is determined that the current speed is greater than the maximum speed, the current speed is reduced until the reduced current speed is less than or equal to the maximum speed. Then, it is determined whether the current opening angle has reached the preset smoke baffle angle. If so, the smoke baffle of the range hood is controlled to stop moving.

[0108] Specifically, the current rotational speed of the wind turbine motor can be obtained using a Hall effect sensor. Hall effect sensors detect changes in magnetic fields and are typically used to detect the position and speed of the wind turbine motor rotor. The sensor is installed near the wind turbine motor; when a magnet on the rotor passes the sensor, it generates voltage pulses. By calculating the number of pulses per unit time, the rotational speed of the wind turbine motor can be obtained. The current rotational speed is compared to the maximum rotational speed. If the current speed is greater than the maximum speed, a command is issued to reduce the motor's input power, thereby reducing the rotational speed. This can be achieved by reducing the motor's supply voltage or changing the pulse width modulation (PWM) signal of the motor drive signal.

[0109] In the above embodiments, by obtaining the current speed of the fan motor and determining whether the current speed is greater than the maximum speed, the negative pressure generated during the operation of the range hood fan motor is avoided, which would cause the range hood smoke baffle drive motor to fail to open the range hood smoke baffle due to insufficient torque. In other words, it can avoid the situation where, when the range hood smoke baffle starts to open, the maximum driving torque provided by the range hood smoke baffle drive motor is insufficient due to the negative pressure generated by the operation of the range hood fan motor, resulting in the range hood smoke baffle failing to open, thus causing operational failure.

[0110] Figure 7 This is a structural block diagram illustrating a range hood baffle control device according to an exemplary embodiment. (Refer to...) Figure 7 The range hood's smoke baffle is mounted on the fixed shaft of the range hood and rotates around the fixed shaft. A gyroscope sensor is mounted on the smoke baffle, parallel to the smoke baffle and moving with it. The gyroscope sensor and the smoke baffle remain relatively stationary during the movement. The aforementioned control device 700 includes:

[0111] The current rotation angle acquisition unit 710 is configured to acquire the current rotation angle output by the gyroscope sensor;

[0112] The relative angle determination unit 720 is configured to determine the relative angle of the current rotation angle with respect to a first preset angle, wherein the first preset angle indicates the rotation angle corresponding to the gyroscope sensor when the range hood baffle is in the closed position.

[0113] The current position determination unit 730 is configured to determine the current position of the range hood baffle based on a relative angle, wherein the current position indicates the rotation angle of the range hood baffle relative to the closed position.

[0114] In some exemplary embodiments, the current position determination unit 730 described above includes:

[0115] The closed position determination unit is configured to determine that the range hood baffle is in a closed position when the difference between the relative angle and the first preset angle is less than a preset angle threshold.

[0116] The fully open position determination unit is configured to determine that the range hood baffle is in the fully open position when the relative angle reaches a second preset angle. The second preset angle indicates the rotation angle of the gyroscope sensor when the range hood baffle is in the fully open position.

[0117] In some exemplary embodiments, the above-described apparatus further includes:

[0118] The relative angle change acquisition unit is configured to acquire the change in relative angle when the relative angle is between a first preset angle and a second preset angle.

[0119] The motion state determination unit is configured to determine the motion state of the range hood baffle plate based on the change in relative angle.

[0120] In some exemplary embodiments, the motion state determination unit includes:

[0121] The obstacle-free determination unit is configured to determine that the movement state of the range hood baffle is "obstacle-free" when the change in relative angle is less than a preset change threshold.

[0122] The obstacle detection unit is configured to determine that the range hood baffle plate is encountering an obstacle when the change in relative angle is greater than or equal to a preset change threshold.

[0123] In some exemplary embodiments, the above-described apparatus further includes:

[0124] The motion state control unit is configured to, when the range hood baffle encounters an obstacle, control the range hood baffle to stop moving, or control the range hood baffle to move in the opposite direction to the current direction of movement.

[0125] In some exemplary embodiments, the above-described apparatus further includes:

[0126] The maximum speed calculation unit for the fan motor is configured to execute the current position indication of the range hood's smoke baffle, indicating the current opening angle of the smoke baffle, and calculate the maximum speed of the range hood's fan motor based on the current opening angle; the expression for the maximum speed is ωmax=h(θ), where ωmax is the maximum speed and θ is the current opening angle; the maximum speed at which the fan motor allows the range hood's smoke baffle to open is when the maximum speed ωmax is the current opening angle θ and the fan motor is turned on at maximum torque;

[0127] The first stop motion determination unit is configured to determine whether the current rotation speed is less than or equal to the maximum rotation speed. If so, it determines whether the current opening angle has reached the preset smoke baffle angle. If so, it controls the smoke baffle of the range hood to stop moving.

[0128] In some exemplary embodiments, the above-described apparatus further includes:

[0129] The current speed acquisition unit for the wind turbine motor is configured to acquire the current speed of the wind turbine motor.

[0130] The second stop motion determination unit is configured to perform the following actions: if it is determined that the current rotation speed is greater than the maximum rotation speed, then reduce the current rotation speed until the reduced current speed is less than or equal to the maximum rotation speed, then determine whether the current opening angle has reached the preset smoke baffle angle, and if so, control the smoke baffle of the range hood to stop moving.

[0131] In some embodiments, the functions or modules of the apparatus provided in this application can be used to perform the methods described in the above method embodiments. The specific implementation can be referred to the description of the above method embodiments, and for the sake of brevity, it will not be repeated here.

[0132] In some exemplary embodiments, this application also provides a range hood, which includes the range hood baffle control device provided in any of the above embodiments.

[0133] In some exemplary embodiments, this application also provides an electronic device, including a processor; a memory for storing processor-executable instructions; wherein, when the processor is configured to execute the instructions stored in the memory, it implements the range hood baffle control method provided in any of the above embodiments.

[0134] The electronic device can be a terminal, a server, or a similar computing device. Taking a server as an example... Figure 8 This is a block diagram illustrating an electronic device for controlling a smart cooktop according to an exemplary embodiment, such as... 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.

[0135] 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 for wireless communication with the Internet.

[0136] 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.

[0137] In some exemplary embodiments, this application also provides a computer-readable storage medium including instructions, such as a memory 830 including instructions, which can be executed by a processor 810 of a device 800 to complete the above-described range hood baffle control method. Optionally, the computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, or optical data storage device, etc.

[0138] In some exemplary embodiments, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the range hood baffle control method provided in any of the above embodiments.

[0139] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0140] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A control method of a smoke deflector of a range hood, characterized by, The oil fume machine smoke baffle is installed on the fixed shaft of the oil fume machine and rotates around the fixed shaft, a gyroscope sensor is installed on the oil fume machine smoke baffle, the gyroscope sensor is parallel to the oil fume machine smoke baffle and moves with the oil fume machine smoke baffle, and the gyroscope sensor is relatively static with the oil fume machine smoke baffle during movement; the method comprises: obtaining a current rotation angle output by the gyroscope sensor; determining a relative angle of the current rotation angle relative to a first preset angle, the first preset angle indicating a rotation angle corresponding to the gyroscope sensor when the oil fume machine smoke baffle is in a closed position; based on the relative angle, determining a current position of the oil fume machine smoke baffle, the current position indicating a rotation angle of the oil fume machine smoke baffle relative to the closed position; the method further comprises: in the case that the difference between the relative angle and the first preset angle is less than a preset angle threshold, it is determined that the oil fume machine smoke baffle is in a closed position; in the case that the relative angle reaches a second preset angle, it is determined that the oil fume machine smoke baffle is in a fully open position, the second preset angle indicating a rotation angle corresponding to the gyroscope sensor when the oil fume machine smoke baffle is in a fully open position; in the case that the relative angle is between the first preset angle and the second preset angle, a change amount of the relative angle is obtained; the change amount of the relative angle indicates an angular velocity change amount of the oil fume machine smoke baffle during rotation; in the case that the change amount of the relative angle is less than a preset change threshold, it is determined that the movement state of the oil fume machine smoke baffle is that no obstacle is encountered; in the case that the change amount of the relative angle is greater than or equal to the preset change threshold, it is determined that the movement state of the oil fume machine smoke baffle is that an obstacle is encountered.

2. The control method of claim 1, wherein, in the case that the movement state of the oil fume machine smoke baffle is that an obstacle is encountered, the method further comprises: controlling the oil fume machine smoke baffle to stop moving, or controlling the oil fume machine smoke baffle to move in a direction opposite to the current movement direction.

3. The control method of claim 1, wherein, the current position of the oil fume machine smoke baffle indicates a current opening angle of the oil fume machine smoke baffle, and the method further comprises: calculating a maximum rotation speed of a fan motor of the oil fume machine according to the current opening angle; the expression of the maximum rotation speed is ωmax=h(θ); wherein ωmax is the maximum rotation speed, θ is the current opening angle, the maximum rotation speed ωmax is the maximum rotation speed of the fan motor when the current opening angle θ and the fan motor are opened at a maximum torque, and the fan motor allows the oil fume machine smoke baffle to open at the maximum rotation speed; determining whether the current rotation speed is less than or equal to the maximum rotation speed, if yes, determining whether the current opening angle reaches a preset smoke baffle angle, if yes, controlling the oil fume machine smoke baffle to stop moving.

4. The control method of claim 3, wherein, the method further comprises: obtaining a current rotation speed of the fan motor; If it is judged that the current rotating speed is greater than the maximum rotating speed, the current rotating speed is reduced until the reduced current rotating speed is less than or equal to the maximum rotating speed, and then it is judged whether the current opening angle reaches the preset smoke baffle angle, if yes, the smoke baffle of the range hood is controlled to stop moving.

5. A control device for a smoke deflector of a range hood, characterized in that, The smoke baffle of the range hood is installed on a fixed shaft of the range hood and rotates around the fixed shaft, a gyroscope sensor is installed on the smoke baffle of the range hood, the gyroscope sensor is parallel to the smoke baffle of the range hood and moves with the smoke baffle of the range hood, and the gyroscope sensor is relatively static with the smoke baffle of the range hood during movement; the device comprises: a current rotating angle acquisition unit configured to acquire a current rotating angle output by the gyroscope sensor; a relative angle determination unit configured to determine a relative angle of the current rotating angle relative to a first preset angle, the first preset angle indicating a rotating angle corresponding to the gyroscope sensor when the smoke baffle of the range hood is in a closed position; a current position determination unit configured to determine a current position of the smoke baffle of the range hood based on the relative angle, the current position indicating a rotating angle of the smoke baffle of the range hood relative to the closed position; in a case where a difference between the relative angle and the first preset angle is less than a preset angle threshold, it is determined that the smoke baffle of the range hood is in the closed position; in a case where the relative angle reaches a second preset angle, it is determined that the smoke baffle of the range hood is in a fully opened position, the second preset angle indicating a rotating angle corresponding to the gyroscope sensor when the smoke baffle of the range hood is in the fully opened position; in a case where the relative angle is between the first preset angle and the second preset angle, a change amount of the relative angle is acquired; the change amount of the relative angle indicates a change amount of an angular velocity of the smoke baffle of the range hood during rotation; in a case where the change amount of the relative angle is less than a preset change threshold, it is determined that a movement state of the smoke baffle of the range hood is that no obstacle is encountered; in a case where the change amount of the relative angle is greater than or equal to the preset change threshold, it is determined that the movement state of the smoke baffle of the range hood is that an obstacle is encountered.

6. A range hood characterized by The range hood comprises the smoke baffle control device of claim 5.

7. An electronic device, comprising: comprises: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to execute the instructions to implement the method of claim 1-4.

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