A control method, system, device, and medium for a damper

Abstract

The present specification relates to the technical field of air purification, and particularly relates to a control method, system, device and medium of a wind valve. The method comprises the following steps: acquiring a first load power, a second load power, a power supply voltage value and a load current value of a range hood; determining a real-time load power of the range hood according to the power supply voltage value and the load current value; comparing the real-time load power with the first load power and the second load power respectively, and controlling the opening and closing state of the wind valve according to the comparison result. Creatively, the real-time load power is used as the standard for determining the opening and closing of the wind valve, which improves the accuracy of the determination of the load range hood working condition. At the same time, the double threshold value is designed as the basis for controlling the opening and closing state of the wind valve, which prevents the normal fluctuation of the real-time load power from affecting the control of the opening and closing state of the wind valve, and effectively avoids the misopening / mis-closing phenomenon of the wind valve.

Description

Technical Field

[0001] Several embodiments in this specification relate to the field of air valve control technology, specifically to a method for controlling an air valve. Background Technology

[0002] Range hoods typically include a fan system to draw in cooking fumes and smoke and exhaust them outdoors. A damper is a device within the fan system used to control airflow. Modern residential buildings, regardless of floor level, generally use a shared exhaust duct system, collecting cooking fumes from kitchens on each floor and venting them to the roof. Therefore, each kitchen typically has a damper installed at the entrance of this shared exhaust duct to control fume emissions. Early models often used mechanical passive dampers, relying on the exhaust fan to open the valve for automatic smoke extraction. However, these ordinary passive dampers often had lightweight valve plates with gaps that prevented a tight seal, leading to poor fumes sealing and allowing odors to easily flow back into the kitchen from the shared exhaust duct.

[0003] In recent years, the industry has developed some new electric dampers, but their quality and performance are not yet perfect. Their main implementation method is almost always simply collecting the range hood's current value and opening and closing the damper by sensing the current of the load range hood. The valve opens when the load range hood's current value is greater than a threshold and closes when it is less than that threshold. However, in practical applications, it has been found that this damper control method, which only sets a single-point threshold based on the load range hood's current, has the technical problem of difficulty in accurately identifying the range hood's operating conditions and is prone to accidental opening / closing of the damper due to fluctuations in the load current value. Accidental opening or closing of the damper can cause significant inconvenience to the user's home environment. For example, when the user is using the range hood in the kitchen, an accidental closure of the damper will prevent the fumes from being exhausted, causing them to stagnate in the kitchen; conversely, when the user is not using the range hood, an accidental opening of the damper can cause fumes from other floors to flow back into the user's kitchen and even other rooms. Summary of the Invention

[0004] The technical problem to be solved by the embodiments in this specification is that the current control of the air valve of the range hood has the technical problem that it is difficult to accurately identify the working condition of the range hood and the air valve is prone to being opened / closed due to the fluctuation of the load current value. The specification proposes a control method, system, equipment and medium for the air valve, which aims to solve the above technical problems.

[0005] The embodiments in this specification adopt the following technical solution: a method for controlling a damper, applied to a damper in the fan system of a smoke hood, comprising the following steps:

[0006] Obtain the first load power and the second load power of the range hood;

[0007] Obtain the power supply voltage and load current values;

[0008] The real-time load power of the range hood is determined based on the power supply voltage and load current values.

[0009] The real-time load power is compared with the first load power and the second load power respectively, and the opening and closing state of the air valve is controlled according to the comparison result.

[0010] Wherein, the first load power represents the minimum load power value of the range hood, the second load power represents the maximum load power value of the range hood, the load current value represents the current value of the load range hood, and the opening and closing state of the air valve includes opening the valve, closing the valve, or maintaining the original state of the air valve.

[0011] Most existing technologies use load current to determine the damper's on / off state. However, when the range hood is in low-power mode, changes in power supply voltage cause significant fluctuations in the load current. Higher power supply voltage results in lower load current. Since different range hoods have different current circuits, the load current in low-power mode may be close to the standby (off) current, increasing the risk of false shut-off. Conversely, when the range hood is in standby (off) mode, changes in power supply voltage cause significant fluctuations in the standby current. Higher power supply voltage results in higher standby current. Again, different range hoods have different current circuits, causing the standby (off) current to be close to the load current at the low fan speed setting, further increasing the risk of false openness.

[0012] To this end, this application creatively adopts the calculated real-time load power as the standard for determining the opening and closing of the air valve. When the range hood is in a low-power state, the higher the power supply voltage, the lower the load current, so the calculated load power remains constant. When the range hood is in standby (off) mode, the power supply voltage changes, and the standby current of the load is higher. Moreover, the standby current of different range hood products varies greatly. However, converting it to load power can significantly reduce the differences between different range hood products in standby (off) mode, thereby significantly improving the accuracy of determining the operating condition of the range hood. At the same time, a dual threshold is designed as the basis for controlling the opening and closing state of the air valve, preventing the normal fluctuation of real-time load power from affecting the control of the opening and closing state of the air valve, effectively avoiding the phenomenon of accidental opening / closing of the air valve, and further improving the inventiveness of this application.

[0013] Preferably, the method for determining the real-time load power of the range hood based on the power supply voltage value and the load current value includes:

[0014] Obtain the phase difference between the power supply voltage value and the load current value;

[0015] The real-time load power of the range hood is calculated based on the power supply voltage value, the load current value, and the phase difference between the two.

[0016] Since most range hood circuits on the market are AC circuits, determining the final real-time load power based on the phase difference between the power supply voltage and load current values ​​can increase the accuracy of the calculated real-time load power in judging the operating condition of the range hood.

[0017] Preferably, the formula for calculating the real-time load power of the range hood is:

[0018] P = V 源 ×I 载 ×cosθ

[0019] Where P represents the real-time load power of the range hood, and V 源 Indicates the power supply voltage value, I 载 θ represents the load current value, and θ represents the phase difference between the power supply voltage value and the load current value.

[0020] Preferably, the method of comparing the real-time load power with the first load power and the second load power respectively, and controlling the opening and closing state of the damper based on the comparison result includes:

[0021] The real-time load power is compared with the first load power and the second load power respectively. If the real-time load power is greater than the first load power, the air valve is controlled to open. If the real-time load power is less than the second load power, the air valve is controlled to close. If the real-time load power is between the first load power and the second load power, the current opening and closing state of the air valve remains unchanged.

[0022] Preferably, the method of comparing the real-time load power with the first load power and the second load power respectively, and controlling the opening and closing state of the damper based on the comparison result, further includes:

[0023] A preset recognition time is used to delay the control of the opening and closing state of the air valve;

[0024] The calculation results of real-time load power are collected multiple times within the recognition time, and the real-time load power is compared with the first load power and the second load power respectively.

[0025] The opening and closing status of the air valve is controlled based on the comparison results of each time within the recognition time.

[0026] Preferably, the method for controlling the opening and closing state of the damper based on the comparison results of each time within the recognition time includes:

[0027] Timing begins once the calculation result of the real-time load power is first collected and compared with the first load power and the second load power, respectively.

[0028] Within the identification time, count the number of times tk the real-time load power is greater than the first load power. If the real-time load power collected within the identification time is not greater than the first load power at any time, then tk is cleared and the number of times tk the real-time load power is greater than the first load power continues to be counted until the identification time ends. Then, determine whether tk has reached the preset number of times. If tk has reached the preset number of times, then control the air valve to open. If tk has not reached the preset number of times, then maintain the current opening and closing state of the air valve.

[0029] Within the identification time, count the number of times tg the real-time load power is less than the second load power. If the real-time load power collected within the identification time is not less than the second load power at any time, then tg is reset to zero and the number of times tg the real-time load power is less than the second load power continues to be counted until the identification time ends. Then, determine whether tg has reached the preset number of times. If tg has reached the preset number of times, then control the air valve to close. If tg has not reached the preset number of times, then maintain the current open / closed state of the air valve.

[0030] If only the load power threshold of the switching valve is designed without multiple confirmations of the real-time power value, the instantaneous value of the real-time load power can easily fluctuate greatly and exceed the power range determined by the switching valve. Therefore, this application effectively prevents the accidental opening / closing of the air valve caused by the large fluctuation of the instantaneous value of the real-time load power exceeding the second load power by setting the recognition time and comparing and confirming the real-time load power multiple times within the recognition time, and further avoids the accidental opening / closing of the air valve.

[0031] Preferably, the method for obtaining the first load power and the second load power of the range hood includes:

[0032] Obtain the power requirement range of the range hood and the fan system speed information of the range hood;

[0033] A threshold encoder is designed according to the power requirement range of the range hood. The threshold encoder is used to preset the upper / lower power limit values ​​of each fan system gear of the range hood.

[0034] Match the fan system speed information with the preset upper / lower power limits in the threshold encoder;

[0035] Based on the matching results, determine the first load power and second load power of each fan system speed of the range hood.

[0036] A control system for an air valve includes:

[0037] The acquisition module is used to acquire the first load power and the second load power of the range hood, as well as the power supply voltage value and the load current value.

[0038] The load power determination module is used to determine the real-time load power of the range hood based on the power supply voltage value and the load current value.

[0039] The data analysis module is used to compare the real-time load power with the first load power and the second load power, respectively;

[0040] The result output module is used to control the opening and closing status of the air valve based on the comparison results.

[0041] A computer device, comprising:

[0042] processor;

[0043] Memory for storing the executable instructions of the processor;

[0044] The processor is configured to execute a control method for a damper as described above by executing the executable instructions.

[0045] A computer-readable storage medium,

[0046] The computer-readable storage medium stores a computer program that, when executed by a processor, implements a control method for a damper as described above.

[0047] The beneficial technical effects of several embodiments in this specification include: The method, system, equipment, and medium for controlling a damper creatively use calculated real-time load power as the standard for determining damper operation. When the range hood is in a low-power state, the higher the power supply voltage, the lower the load current, thus the calculated load power remains constant. When the range hood is in standby (off) mode, the power supply voltage changes, and the standby current of the load increases. Furthermore, the standby current varies significantly between different range hood products. However, converting this to load power can greatly reduce the differences between different range hood products in standby (off) mode, thereby significantly improving the accuracy of determining the operating condition of the range hood. Simultaneously, a dual threshold is designed. This system serves as the basis for controlling the opening and closing of the damper, preventing normal fluctuations in real-time load power from affecting the damper's opening and closing status, and effectively avoiding accidental opening / closing of the damper. By setting the recognition time and performing multiple comparisons and confirmations of the real-time load power within the recognition time, it effectively prevents accidental opening / closing of the damper caused by large instantaneous fluctuations in the real-time load power exceeding the second load power, further avoiding accidental opening / closing of the damper. By designing a threshold encoder, it is possible to adjust the matching of the upper / lower power limits of different fan system gears of the range hood, reducing the subsequent accidental opening / closing of the damper due to mismatched upper / lower power limits of different types of range hood fan system gears.

[0048] Other features and advantages of the embodiments described herein will be disclosed in detail in the following detailed description and accompanying drawings. Attached Figure Description

[0049] The embodiments of this specification will be further described below with reference to the accompanying drawings:

[0050] Figure 1 This is a flowchart of the control method for the air valve in Embodiment 1 of this specification.

[0051] Figure 2 This is a flowchart of the control method for the air valve in Embodiment 2 of this specification.

[0052] Figure 3 This is a flowchart of a method for controlling the opening and closing state of a damper based on the comparison results of each time within the recognition time, as described in Embodiment 2 of this specification.

[0053] Figure 4 This is a flowchart illustrating the method for obtaining the first load power and the second load power of a range hood in Embodiment 3 of this specification.

[0054] Figure 5 This is a schematic diagram of the control system structure of the air valve in Embodiment 4 of this specification.

[0055] Figure 6 This is a schematic diagram of the structure of a computer device according to Embodiment 5 of this specification.

[0056] The module consists of: 1. Acquisition module, 2. Load power determination module, 3. Data analysis module, 4. Result output module, 5. Processor, and 6. Memory. Detailed Implementation

[0057] The technical solutions of the embodiments of this specification will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the embodiments of this specification and are not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the embodiments of this specification.

[0058] In the following description, terms such as “inner,” “outer,” “upper,” “lower,” “left,” and “right” are used only to indicate orientation or positional relationship for the convenience of describing the embodiments and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this specification.

[0059] Before describing the technical solution of this embodiment in detail, the background of the application of this embodiment will be introduced first.

[0060] Most simple electric dampers installed in homes currently use a current sensing technology to open and close the valve based on the current reading of the range hood. However, this technology has a drawback: the operating current of the same range hood operating at the same fan speed can vary due to different power supply voltages. Therefore, it's difficult to accurately identify the range hood's operating condition, and when the current value is near the threshold, it can easily cause accidental opening / closing of the valve. In recent years, range hood products have undergone rapid upgrades, and two main design schemes affect the damper's ability to determine the current of the load range hood:

[0061] 1) Most range hoods currently use switching power supplies, and the instantaneous current of a switching power supply is relatively large when it is turned on, which will result in a higher standby current value.

[0062] 2) Furthermore, with the increasing popularity of inverter range hoods, the power output of the low-airflow setting varies among different brands. Many range hoods have relatively low power output at their low-airflow setting, resulting in a lower current reading. This leads to a smaller difference between the standby current and the low-airflow operating current recorded by the damper. Therefore, when the range hood is in standby mode, the current recorded fluctuates under different power supply voltages, sometimes approaching or even exceeding the damper's set opening current value. This can cause the damper to open erroneously, allowing fumes from other floors to backflow into the user's kitchen or even other rooms. Conversely, when the range hood is operating at low airflow, the low operating current causes the damper to record fluctuating current values ​​under different power supply voltages. Sometimes, the current value may be lower than the damper's set closing current value, causing the damper to close erroneously, preventing proper ventilation and leaving fumes trapped in the kitchen.

[0063] Example 1:

[0064] Therefore, Embodiment 1 of this application provides a method for controlling a damper, applied to a damper in the fan system of a smoke hood. Please refer to the appendix. Figure 1 This includes the following steps:

[0065] Step 102: Obtain the first load power and the second load power of the range hood.

[0066] In this embodiment, the first load power and the second load power of the range hood can be determined according to the specifications and technical parameters of the range hood. Specifically, it is the power requirement range set at the factory for the range hood. The first load power is the minimum load power value of the range hood, and the second load power is the maximum load power value of the range hood. This embodiment does not consider the case where the range hood has different fan system speeds.

[0067] Step 104: Obtain the power supply voltage and load current values.

[0068] The load current value represents the current value of the load range hood.

[0069] Step 106: Determine the real-time load power of the range hood based on the power supply voltage and load current values.

[0070] Step 108: Compare the real-time load power with the first load power and the second load power respectively, and control the opening and closing state of the air valve according to the comparison result.

[0071] The opening and closing states of the air valve include opening the valve, closing the valve, or maintaining the original state of the air valve.

[0072] On the other hand, in this embodiment, the method for determining the real-time load power of the range hood based on the power supply voltage value and the load current value includes:

[0073] Obtain the phase difference between the power supply voltage value and the load current value;

[0074] The real-time load power of the range hood is calculated based on the power supply voltage, load current, and the phase difference between them.

[0075] Since most range hood circuits on the market are AC circuits, the real-time load power can be determined more accurately by considering the phase difference between the power supply voltage and load current values. This increases the accuracy of the real-time load power in determining the operating condition of the range hood.

[0076] On the other hand, in this embodiment, the formula for calculating the real-time load power of the range hood is:

[0077] P = V 源 ×I 载 ×cosθ

[0078] Where P represents the real-time load power of the range hood, and V 源 Indicates the power supply voltage value, I 载 θ represents the load current value, and θ represents the phase difference between the power supply voltage value and the load current value.

[0079] On the other hand, in this embodiment, the method of comparing the real-time load power with the first load power and the second load power respectively, and controlling the opening and closing state of the damper based on the comparison result includes:

[0080] The real-time load power is compared with the first load power and the second load power respectively. If the real-time load power is greater than the first load power, the air valve is controlled to open. If the real-time load power is less than the second load power, the air valve is controlled to close. If the real-time load power is between the first load power and the second load power, the current opening and closing state of the air valve remains unchanged.

[0081] Most existing technologies use load current to determine the damper's on / off state. However, when the range hood is in low-power mode, changes in power supply voltage cause significant fluctuations in the load current. Higher power supply voltage results in lower load current. Since different range hoods have different current circuits, the load current in low-power mode may be close to the standby (off) current, increasing the risk of false shut-off. Conversely, when the range hood is in standby (off) mode, changes in power supply voltage cause significant fluctuations in the standby current. Higher power supply voltage results in higher standby current. Again, different range hoods have different current circuits, causing the standby (off) current to be close to the load current at the low fan speed setting, further increasing the risk of false openness.

[0082] Therefore, this embodiment creatively uses the calculated real-time load power as the standard for determining the opening and closing of the air valve. When the range hood is in a low-power state, the higher the power supply voltage, the lower the load current, so the calculated load power remains constant. However, when the range hood is in standby (off) mode, the power supply voltage changes, and the standby current of the load is higher. Moreover, the standby current of different range hood products varies greatly. However, converting it to load power can significantly reduce the differences between different range hood products in standby (off) mode, thereby significantly improving the accuracy of determining the operating condition of the range hood. At the same time, a dual threshold is designed as the basis for controlling the opening and closing state of the air valve, preventing the normal fluctuation of real-time load power from affecting the control of the opening and closing state of the air valve, effectively avoiding the phenomenon of accidental opening / closing of the air valve, and further improving the creativity of this embodiment.

[0083] Example 2:

[0084] This application also provides a method for controlling a damper, applied to a damper in the fan system of a smoke hood. Please refer to the appendix. Figure 2 This includes the following steps:

[0085] Step 201: Obtain the first load power and the second load power of the range hood.

[0086] In this embodiment, the first load power and the second load power of the range hood can be determined according to the specifications and technical parameters of the range hood. Specifically, it is the power requirement range set at the factory for the range hood. The first load power is the minimum load power value of the range hood, and the second load power is the maximum load power value of the range hood. This embodiment does not consider the case where the range hood has different fan system speeds.

[0087] Step 203: Obtain the power supply voltage and load current values.

[0088] The load current value represents the current value of the load range hood.

[0089] Step 205: Determine the real-time load power of the range hood based on the power supply voltage and load current values.

[0090] Step 207: Preset recognition time. The recognition time is used to delay the control of the opening and closing state of the air valve.

[0091] Step 209: Collect the calculation results of real-time load power multiple times within the recognition time and compare the real-time load power with the first load power and the second load power respectively;

[0092] For example, in the prior art, the time for determining the opening and closing of the air valve using the load current is about 10 milliseconds. In this embodiment, the recognition time is preset to 1-3 seconds, the collection period of the calculation result of the real-time load power is set to be once every 100 milliseconds, and the collected real-time load power is compared with the first load power and the second load power respectively.

[0093] Step 211: Control the opening and closing state of the air valve based on the comparison results of each time within the recognition time.

[0094] The opening and closing states of the air valve include opening the valve, closing the valve, or maintaining the original state of the air valve.

[0095] On the other hand, in this embodiment, please refer to the appendix. Figure 3 Methods for controlling the opening and closing state of the damper based on the comparison results within the recognition time include:

[0096] Timing begins once the calculation result of the real-time load power is first acquired and compared with the first load power and the second load power, respectively.

[0097] Within the recognition time, count the number of times tk the real-time load power is greater than the first load power. If the real-time load power collected within the recognition time is not greater than the first load power even once, then tk is cleared and the number of times tk the real-time load power is greater than the first load power continues to be counted until the recognition time ends. Then, determine whether tk has reached the preset number of times. If tk has reached the preset number of times, then control the air valve to open. If tk has not reached the preset number of times, then maintain the current opening and closing state of the air valve.

[0098] Within the recognition time, count the number of times the real-time load power is less than the second load power (tg). If the real-time load power collected within the recognition time is not less than the second load power at any time, then tg is reset to zero and the count of the number of times the real-time load power is less than the second load power (tg) continues until the recognition time ends and the count stops. Determine whether tg has reached the preset number of times. If tg has reached the preset number of times, control the air valve to close the valve. If tg has not reached the preset number of times, maintain the current open / closed state of the air valve.

[0099] Among them, the appendix Figure 3 In this context, P represents the real-time load power, and n represents the preset number of times.

[0100] If only the load power threshold of the switching valve is designed without multiple confirmations of the real-time power value, the instantaneous value of the real-time load power can easily fluctuate greatly and exceed the power range determined by the switching valve. Therefore, based on Example 1, this embodiment sets the recognition time and performs multiple comparisons and confirmations of the real-time load power within the recognition time. This effectively prevents the valve from being opened or closed accidentally due to large fluctuations in the instantaneous value of the real-time load power exceeding the second load power, and further avoids the phenomenon of valve opening or closing accidentally.

[0101] Example 3:

[0102] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that, please refer to the appendix. Figure 4 The methods for obtaining the first load power and the second load power of the range hood include:

[0103] Step 402: Obtain the power requirement range of the range hood and the fan system speed information of the range hood.

[0104] In this embodiment, the power requirement range and fan system speed settings of the range hood can be determined based on the range hood's specifications and technical parameters. Specifically, this is determined by the power requirement range set at the factory, i.e., the minimum and maximum power values, and the number of fan speed settings available for the range hood. This embodiment considers the case where the range hood has different fan system speed settings.

[0105] Step 404: Design a threshold encoder based on the power requirement range of the range hood. The threshold encoder is used to preset the upper / lower power limits of each fan system gear of the range hood.

[0106] Threshold encoders typically have multiple DIP switches, each with multiple setting options. Each setting option corresponds to different power upper / lower limits. Therefore, the design of threshold encoders can match different types of range hood power levels, and the higher the power level, the higher the corresponding power upper / lower limit.

[0107] Step 406: Match the fan system speed information with the preset upper / lower power limits in the threshold encoder.

[0108] For example, assuming the current range hood's fan system has 8 speed settings, taking a threshold encoder with three DIP switches as an example, the three DIP switches are equivalent to three binary digits 000-111, which can correspond to the eight speed settings. Based on manual experience, the upper / lower power limits for each speed setting in the threshold encoder are preset. For example, the upper power limit for speed setting 1 is 20, and the lower power limit is 10; the upper power limit for speed setting 2 is 25, and the lower power limit is 15; the upper power limit for speed setting 3 is 30, and the lower power limit is 20; the upper power limit for speed setting 45, and the lower power limit is 25; ...; the upper power limit for speed setting 8 is 500, and the lower power limit is 100. Then, each fan system speed setting of the current range hood matches the preset upper / lower power limits of the eight speed settings in the threshold encoder from low to high.

[0109] Step 408: Based on the matching results, determine the first load power and the second load power of each fan system speed of the range hood.

[0110] Among them, the first load power of each fan system speed of the range hood is the highest load power value of each fan system speed of the range hood, and the second load power of each fan system speed of the range hood is the lowest load power value of each fan system speed of the range hood.

[0111] On the other hand, in this embodiment, the threshold encoder is mainly used to match the fan system speed of different types of smoke hoods with the MCU processor in the air valve controller, and to assign power value codes for different speeds. However, it is not limited to the acquisition method of setting the code input. For example, in addition to DIP switches, it can also be designed as a key input method, or a data acquisition fixture can be designed to directly import the data into the EEPROM of the data storage MCU processor for adjustment. Similarly, it is not limited by the number of speed codes.

[0112] The subsequent calculation of the real-time load power for the current fan system speed of the range hood and comparison of the real-time load power with the first load power and the second load power respectively, and the operation of controlling the opening and closing state of the air valve according to the comparison result are similar to the operation of Embodiment 1 or Embodiment 2, and will not be described again in this embodiment.

[0113] This embodiment takes into account the possibility that existing range hoods may have different fan system speeds. By designing a threshold encoder, the upper / lower power limits of different fan system speeds of the range hood can be matched and adjusted, reducing the phenomenon of accidental valve opening and closing caused by mismatched upper / lower power limits of different types of range hood fan system speeds.

[0114] Example 4:

[0115] A control system for an air valve; please refer to the appendix. Figure 5 ,include:

[0116] Module 1 is used to acquire the first load power and the second load power of the range hood, as well as the power supply voltage value and the load current value.

[0117] Load power determination module 2 is used to determine the real-time load power of the range hood based on the power supply voltage value and the load current value;

[0118] Data analysis module 3 is used to compare the real-time load power with the first load power and the second load power, respectively;

[0119] Result output module 4 is used to control the opening and closing state of the air valve based on the comparison result.

[0120] The opening and closing states of the air valve include opening the valve, closing the valve, or maintaining the original state of the air valve.

[0121] The components in the acquisition module 1 used to acquire power supply voltage values ​​include, but are not limited to, power supply voltage acquisition circuits. Various acquisition methods can be employed, such as voltage transformer acquisition, isolation transformer acquisition, linear optocoupler acquisition, or resistance voltage divider acquisition. This embodiment does not limit the method of power supply voltage acquisition. The components in the acquisition module 1 used to acquire load current values ​​include, but are not limited to, load current acquisition devices. In this embodiment, the components for acquiring load current values ​​are mainly for the MCU processor in the controller to obtain the current information of the load range hood, but are not limited to the specific acquisition method, such as current transformer acquisition, current sensing semiconductor device acquisition, Hall effect sensor acquisition, or resistance acquisition. The load power determination module 2 and the data analysis module 3 include, but are not limited to, an MCU processor and a main controller. The result output module 4 includes, but is not limited to, a damper drive circuit. The result output module 4 is electrically connected to the damper. Information transmission between the acquisition module 1, load power determination module 2, data analysis module 3, and result output module 4 can be achieved through digital signals, analog signals, or other communication methods.

[0122] Example 5:

[0123] A computer device, see appendix Figure 6 ,include:

[0124] Processor 5;

[0125] Memory 6 is used to store the executable instructions of processor 5;

[0126] The processor 5 is configured to execute a control method for a damper as described above by executing executable instructions.

[0127] It should be noted that the computer device described above, based on the method embodiments, may also include other implementation methods. Specific implementation methods can be found in the descriptions of the relevant method embodiments, and will not be elaborated upon here.

[0128] The control system or computer device for a damper provided in this specification can also be applied to various data analysis and processing systems. The computer device can be a standalone server, or it can include a server cluster, system (including distributed system), software (application), actual operating device, logic gate circuit device, quantum computer, etc., combined with necessary implementation hardware, using the methods or systems of the embodiments in this specification.

[0129] Processor 5 can be a Central Processing Unit (CPU), or it can be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0130] The memory 6 stores program code, which can be executed by the processor 5 to perform any of the deep learning-based operation strategy triggering methods described above. In some embodiments, the memory 6 can be an internal storage unit of a computer device, such as a hard drive or memory. In other embodiments, the memory 6 can be an external storage device of the computer device, such as a plug-in hard drive, smart media card (SMC), secure digital card (SD), flash card, etc. Furthermore, the memory 6 can include both internal and external storage units of the computer device.

[0131] Example 6:

[0132] A computer-readable storage medium,

[0133] The computer-readable storage medium stores a computer program, which, when executed by the processor 5, implements a control method for a damper as described above.

[0134] It should be noted that the computer-readable storage medium described above in this disclosure can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this disclosure, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0135] In some implementations, clients and servers can communicate using any currently known or future-developed network protocol, such as HTTP (Hypertext Transfer Protocol), and can interconnect with digital data communication (e.g., communication networks) of any form or medium. Examples of communication networks include local area networks (“LANs”), wide area networks (“WANs”), the Internet (e.g., the Internet of Things), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future-developed networks.

[0136] The aforementioned computer-readable storage medium may be included in the aforementioned computer device; or it may exist independently and not assembled into the computer device.

[0137] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the modules themselves.

[0138] The above is merely a preferred embodiment disclosed in this application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in this application is not limited to the technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-mentioned technical features or their equivalent features without departing from the above-disclosed concept. For example, technical solutions formed by substituting the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0139] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in sequential order. In certain environments, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

Claims

1. A method for controlling a damper, applied to a damper in the fan system of a smoke hood, characterized in that, Includes the following steps: Obtain the first load power and the second load power of the range hood, where the first load power represents the minimum load power value of the range hood and the second load power represents the maximum load power value of the range hood; Obtain the power supply voltage and load current values; The real-time load power of the range hood is determined based on the power supply voltage and load current values. The real-time load power is compared with the first load power and the second load power respectively, and the opening and closing state of the air valve is controlled according to the comparison result. The method of comparing the real-time load power with the first load power and the second load power respectively, and controlling the opening and closing state of the damper based on the comparison result includes: A preset recognition time is used to delay the control of the opening and closing state of the air valve; The calculation results of real-time load power are collected multiple times within the recognition time, and the real-time load power is compared with the first load power and the second load power respectively. Timing begins once the calculation result of the real-time load power is first collected and compared with the first load power and the second load power, respectively. Within the identification time, count the number of times tk the real-time load power is greater than the first load power. If the real-time load power collected within the identification time is not greater than the first load power at any time, then tk is cleared and the number of times tk the real-time load power is greater than the first load power continues to be counted until the identification time ends. Then, determine whether tk has reached the preset number of times. If tk has reached the preset number of times, then control the air valve to open. If tk has not reached the preset number of times, then maintain the current opening and closing state of the air valve. Within the identification time, count the number of times tg the real-time load power is less than the second load power. If the real-time load power collected within the identification time is not less than the second load power at any time, then tg is reset to zero and the number of times tg the real-time load power is less than the second load power continues to be counted until the identification time ends. Then, determine whether tg has reached the preset number of times. If tg has reached the preset number of times, then control the air valve to close. If tg has not reached the preset number of times, then maintain the current open / closed state of the air valve.

2. The method for controlling a damper as described in claim 1, characterized in that, The method for determining the real-time load power of the range hood based on the power supply voltage value and the load current value includes: Obtain the phase difference between the power supply voltage value and the load current value; The real-time load power of the range hood is calculated based on the power supply voltage value, the load current value, and the phase difference between the two.

3. The method for controlling a damper as described in claim 2, characterized in that, The formula for calculating the real-time load power of the range hood is: ， Where P represents the real-time load power of the range hood. Indicates the power supply voltage value. Indicates the load current value. This indicates the phase difference between the power supply voltage value and the load current value.

4. The method for controlling a damper as described in claim 1, characterized in that, Methods for obtaining the first load power and the second load power of the range hood include: Obtain the power requirement range of the range hood and the fan system speed information of the range hood; A threshold encoder is designed according to the power requirement range of the range hood. The threshold encoder is used to preset the upper / lower power limit values ​​of each fan system gear of the range hood. Match the fan system speed information with the preset upper / lower power limits in the threshold encoder; Based on the matching results, determine the first load power and second load power of each fan system speed of the range hood.

5. A computer device, characterized in that, include: processor; Memory for storing the executable instructions of the processor; The processor is configured to execute a control method for a damper as described in any one of claims 1 to 4 by executing the executable instructions.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements a control method for a damper as described in any one of claims 1 to 4.

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