Range hood, operation control method, commissioning method, device, system, and apparatus

Abstract

The application discloses a range hood, an operation control method, a debugging method, a device, a system and equipment, monitors an actual rotating speed of a fan of the range hood; if the actual rotating speed of the fan is in an abnormal sound rotating speed band, based on pre-configured mapping relationship data, a target compensation angle corresponding to the actual rotating speed is determined, and the mapping relationship data includes a rotor position compensation angle adapted to each abnormal sound rotating speed area in the abnormal sound rotating speed band; and based on the target compensation angle, an angle compensation is performed on a rotor position of the fan. The application improves the abnormal sound and vibration of the range hood during operation to a certain extent.

Description

Technical Field

[0001] This invention belongs to the field of range hood technology, and particularly relates to a range hood, operation control method, debugging method, device, system and equipment. Background Technology

[0002] Vibration noise generated by components such as the motor and impeller blades of the range hood; electromagnetic noise generated by the vibration of the motor stator and rotor; and abnormal noise generated by the resonance of various components or the formation of vortices in the air duct during the operation of the range hood at certain speed ranges.

[0003] Most noise reduction measures for range hoods involve modifying the overall structure or adding materials to eliminate noise and odor. These methods include reinforcing the structure with rivets, improving splicing and welding processes, and adding vibration-damping pads. These methods undoubtedly increase the amount of materials and processes involved, making the range hood's duct system more complex and affecting its performance parameters. Alternatively, to avoid vibration and noise during operation, the operating speed range needs to be avoided, which may result in a loss of operating speed. Summary of the Invention

[0004] The present invention provides a range hood, an operation control method, a debugging method, a device, a system and equipment, which at least to a certain extent improve the vibration and noise during the operation of the range hood.

[0005] In a first aspect, embodiments of the present invention provide a method for controlling the operation of a range hood, comprising:

[0006] Monitor the actual speed of the range hood fan;

[0007] If the actual speed of the fan is detected to be within the abnormal speed band, the target compensation angle corresponding to the actual speed is determined based on the pre-configured mapping relationship data. The mapping relationship data includes the rotor position compensation angle adapted to each abnormal speed zone in the abnormal speed band.

[0008] The rotor position of the wind turbine is compensated based on the target compensation angle.

[0009] In conjunction with the first aspect, in some implementations, the abnormal noise speed band includes multiple abnormal noise speed zones; determining the target compensation angle corresponding to the actual speed based on pre-configured mapping relationship data includes:

[0010] From each abnormal speed zone of the abnormal speed band, determine the reference abnormal speed zone adjacent to the actual speed;

[0011] From the mapping relationship data, the rotor position compensation angle corresponding to the reference abnormal noise speed zone is obtained by looking up the table;

[0012] The target compensation angle is determined by interpolation calculation based on the actual rotational speed, the reference abnormal noise speed range, and the rotor position compensation angle corresponding to the reference abnormal noise speed range.

[0013] In conjunction with the first aspect, in some implementations, the mapping relationship data is determined in advance by debugging the range hood and configured in the range hood.

[0014] In conjunction with the first aspect, in some implementations, the angular compensation of the rotor position of the wind turbine based on the target compensation angle includes:

[0015] Detect the actual angle of the rotor position of the fan;

[0016] The rotor position control angle is obtained by summing the actual rotor position angle and the target compensation angle.

[0017] The rotor position of the fan is controlled based on the rotor position control angle.

[0018] Secondly, embodiments of the present invention provide a method for adjusting a range hood, including:

[0019] Determine the abnormal noise speed zone of the target range hood, wherein the abnormal noise speed zone includes at least one abnormal noise speed area;

[0020] Each abnormal noise speed zone in the abnormal noise speed band is taken as the target abnormal noise speed zone, and the rotor position compensation angle under the target abnormal noise speed zone is adjusted for the fan of the target range hood to obtain the rotor position compensation angle adapted to the target abnormal noise speed zone.

[0021] Based on the rotor position compensation angle adapted to each abnormal speed zone within the abnormal speed band, mapping relationship data is generated, wherein the mapping relationship data includes the rotor position compensation angle adapted to each abnormal speed zone within the abnormal speed band.

[0022] In conjunction with the second aspect, in some implementation methods, the adjustment of the rotor position compensation angle for the fan of the target range hood under the target abnormal noise speed range includes:

[0023] Set the target range hood to the target abnormal noise speed range;

[0024] Different rotor position compensation angles are provided to the fan of the target range hood in stages to obtain the vibration abnormality sound corresponding to each rotor position compensation angle in the target abnormal sound speed range.

[0025] By comparing the vibration noise levels corresponding to different rotor position compensation angles under the target abnormal noise speed range, the rotor position compensation angle that is compatible with the target abnormal noise speed range is determined.

[0026] In conjunction with the second aspect, in some implementation methods, determining the abnormal noise speed range of the target range hood includes:

[0027] A whole-machine frequency sweep process is performed on M range hoods of the same model as the target range hood to determine the abnormal noise speed band of the target range hood, where M is an integer greater than 1.

[0028] In conjunction with the second aspect, in some implementations, the step of performing a whole-machine frequency sweep processing on M range hoods of the same model as the target range hood to determine the abnormal noise speed band of the target range hood includes:

[0029] A frequency sweep control command is issued to the M range hoods, and based on the frequency sweep control command, the fan of each of the M range hoods is continuously frequency-controlled to control the fan speed of each of the M range hoods to continuously change.

[0030] Monitor the vibration and abnormal noise of each of the M range hoods during the continuous change of their fan speed, and obtain the vibration and abnormal noise monitoring results for the M range hoods.

[0031] Based on the vibration and abnormal noise monitoring results, the speed range of the abnormal noise was determined.

[0032] In conjunction with the second aspect, in some implementations, setting the target range hood to the target abnormal noise speed range includes:

[0033] A constant speed control command is sent to the target range hood, and the target range hood is set to the target abnormal noise speed range based on the constant speed control command;

[0034] The step of providing different rotor position compensation angles to the fan of the target range hood in stages to obtain the vibration abnormality sound corresponding to each rotor position compensation angle in the target abnormal noise speed range includes:

[0035] Each rotor position compensation angle is sequentially sent to the target range hood so that the target range hood can perform closed-loop adjustment of the fan operation based on the currently received rotor position compensation angle each time it receives a rotor position compensation angle, until the actual speed of the fan is in the target abnormal noise speed range.

[0036] The vibration and abnormal noise levels generated by the target range hood are collected when the actual rotational speed of the fan is within the target abnormal noise speed range.

[0037] In conjunction with the second aspect, in some implementations, after generating the mapping relationship data, the method further includes:

[0038] Configure the abnormal noise speed range and the mapping relationship data in the target range hood.

[0039] Thirdly, embodiments of the present invention provide a range hood operation control device, comprising:

[0040] A speed monitoring unit is used to monitor the actual speed of the fan in the range hood;

[0041] The compensation angle determination unit is used to determine the target compensation angle corresponding to the actual speed if the actual speed of the fan is detected to be within the abnormal speed band, based on pre-configured mapping relationship data. The mapping relationship data includes the rotor position compensation angle adapted to each abnormal speed zone in the abnormal speed band.

[0042] The compensation control unit is used to perform angle compensation on the rotor position of the fan based on the target compensation angle.

[0043] Fourthly, embodiments of the present invention provide a range hood adjustment device, comprising:

[0044] An abnormal noise speed determination unit is used to determine the abnormal noise speed band of the target range hood, wherein the abnormal noise speed band includes at least one abnormal noise speed zone;

[0045] The compensation angle adjustment unit is used to take each abnormal noise speed zone in the abnormal noise speed band as a target abnormal noise speed zone, and perform rotor position compensation angle adjustment under the target abnormal noise speed zone for the fan of the target range hood, so as to obtain the rotor position compensation angle adapted to the target abnormal noise speed zone.

[0046] The data generation unit is used to generate mapping relationship data based on the rotor position compensation angle adapted to each abnormal speed zone within the abnormal speed band, wherein the mapping relationship data includes the rotor position compensation angle adapted to each abnormal speed zone within the abnormal speed band.

[0047] Fifthly, embodiments of the present invention provide a range hood adjustment system, comprising:

[0048] Target: Range hood;

[0049] The control equipment is debugged and a communication link is established with the target range hood. The abnormal noise speed band of the target range hood is determined, and the abnormal noise speed band includes at least one abnormal noise speed zone. Each abnormal noise speed zone in the abnormal noise speed band is taken as the target abnormal noise speed zone. For the fan of the target range hood, the rotor position compensation angle under the target abnormal noise speed zone is adjusted to obtain the rotor position compensation angle adapted to the target abnormal noise speed zone. Based on the rotor position compensation angle adapted to each abnormal noise speed zone in the abnormal noise speed band, mapping relationship data is generated, wherein the mapping relationship data includes the rotor position compensation angle adapted to each abnormal noise speed zone in the abnormal noise speed band.

[0050] In conjunction with the fifth aspect, in some embodiments, the target range hood includes a range hood controller connected to the fan;

[0051] The debugging and control equipment specifically establishes a communication link with the smoke machine controller, and sends a constant speed control command to the smoke machine controller based on the communication link. After sending the constant speed control command, it sequentially sends different rotor position compensation angles.

[0052] The range hood controller is used to receive and respond to the constant speed control command, set the range hood to the target abnormal noise speed range, and the range hood controller is also used to receive the rotor position compensation angle issued by the debugging control equipment each time; and to perform closed-loop adjustment of the operation of the fan according to the currently received rotor position compensation angle, until the actual speed of the fan is in the target abnormal noise speed range;

[0053] The debugging and control equipment is also used to collect the vibration abnormality sound of the target range hood when the actual speed of the fan is in the target abnormality speed range, and use it as the vibration abnormality sound corresponding to the current position compensation angle.

[0054] In a sixth aspect, embodiments of the present invention provide a range hood, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the range hood operation control method described in any embodiment of the first aspect.

[0055] In a seventh aspect, embodiments of the present invention provide a debugging control device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the range hood debugging method described in any embodiment of the second aspect.

[0056] The present invention provides one or more technical solutions by monitoring the actual rotational speed of the range hood fan; if the actual rotational speed of the fan is detected to be within the abnormal noise speed band, a target compensation angle corresponding to the actual rotational speed is determined based on pre-configured mapping relationship data; the rotor position of the fan is compensated for based on the target compensation angle, wherein the mapping relationship data includes the rotor position compensation angle adapted to each abnormal noise speed band; thereby, by using the target compensation angle corresponding to the actual rotational speed to compensate for the rotor position, a suitable current harmonic is injected at a fixed speed to change the original vibration characteristics of the range hood, thereby improving the vibration and noise of the entire range hood. The range hood no longer needs to avoid the abnormal noise speed band during operation, thus avoiding the loss of rotational speed of the range hood and realizing continuous variation of the fan speed of the range hood. Attached Figure Description

[0057] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0058] Figure 1 This is an architecture diagram of the range hood debugging system in an embodiment of the present invention;

[0059] Figure 2 This is a flowchart of the range hood debugging method in an embodiment of the present invention;

[0060] Figure 3 This is a schematic diagram of the debugging logic of the range hood in an embodiment of the present invention;

[0061] Figure 4 This is a flowchart of the range hood operation control method in an embodiment of the present invention;

[0062] Figure 5 This is a functional block diagram of the range hood adjustment device in an embodiment of the present invention;

[0063] Figure 6 This is a functional block diagram of the range hood operation control device in an embodiment of the present invention. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0065] refer to Figure 1 As shown, this embodiment of the invention provides a range hood debugging system, including: a debugging control device and a target range hood, wherein a communication link is established between the debugging control device and the target range hood, and the debugging control device is used to debug the target range hood.

[0066] The target range hood can be a variable frequency range hood, including a range hood controller and a range hood body. The range hood body includes a housing, a fan and an inverter. The range hood controller is connected to the inverter, and the inverter is connected to the fan.

[0067] This invention also provides a method for debugging a range hood, which can be based on the interaction between a debugging control device and the target range hood to achieve debugging of the target range hood. (See reference) Figure 1 and Figure 2 The range hood debugging method provided in this embodiment of the invention includes the following steps S201-S203:

[0068] S201. Determine the abnormal noise speed range of the target range hood. The abnormal noise speed range includes at least one abnormal noise speed zone.

[0069] In step S201, a whole-machine frequency sweep is performed on M range hoods of the same model as the target range hood using a debugging control device to determine the abnormal noise speed band of the target range hood, where M is an integer greater than 1. Specifically, the whole-machine frequency sweep can be performed on the M range hoods sequentially or simultaneously.

[0070] In this embodiment of the invention, the whole-machine frequency sweep processing of the range hood involves the debugging and control equipment controlling the range hood fan to continuously change its frequency from high to low (or from low to high) within a frequency band, thereby causing the fan speed to change continuously. The continuous change in the fan speed of the range hood will pass through the speed zone that generates vibration and abnormal noise. By monitoring the vibration and abnormal noise of the range hood during the continuous change of its fan speed, the abnormal noise speed zone of the range hood is obtained. Based on the various abnormal noise speed zones passed through by the M range hoods during the whole-machine frequency sweep processing, the abnormal noise speed band of the target range hood is obtained.

[0071] Specifically, the debugging and control equipment sends a frequency sweep control command to the M range hoods. Based on the frequency sweep control command, the fan of each of the M range hoods is controlled by frequency conversion so that the frequency of the fan changes continuously, thereby making the fan speed of the range hood change continuously.

[0072] The continuous change in the fan speed of the range hood can be a continuous change from low to high or from high to low. More specifically, vibration detection equipment can be used to monitor the abnormal vibration noise of the range hood fan during the continuous change of speed, and the speed points or speed ranges that produce abnormal vibration noise can be recorded to obtain each abnormal noise speed range. Therefore, in this embodiment of the invention, an abnormal noise speed range can be a speed point or a speed range.

[0073] By performing a full-machine frequency sweep on M range hoods of the same model as the target range hood, the determined abnormal noise speed band can be used for debugging each range hood of the same model. Therefore, in practical implementation, the same abnormal noise speed band is used for debugging a series of range hoods of the same model, and it is not necessary to perform a full-machine frequency sweep on M range hoods for each range hood being debugged.

[0074] More precisely, to address the inherent differences between each range hood, when debugging any target range hood, a frequency sweep can be performed on M range hoods, including the target range hood, to determine the abnormal noise speed range that is unique to that target range hood. Therefore, for each range hood being debugged, a frequency sweep of all M range hoods needs to be performed to obtain a more accurate abnormal noise speed range.

[0075] Unlike the above implementation method, it is also possible to perform a full-machine frequency sweep for each range hood during debugging, so as to obtain the abnormal noise speed band only for that range hood, thereby obtaining a more accurate abnormal noise speed band.

[0076] S202. Take each abnormal noise speed zone in the abnormal noise speed zone as the target abnormal noise speed zone, and adjust the rotor position compensation angle for the target abnormal noise speed zone to obtain the rotor position compensation angle that is suitable for the target abnormal noise speed zone.

[0077] Specifically, the abnormal noise speed zone includes N abnormal noise speed areas, and N rotor position compensation angles corresponding to the N abnormal noise speed areas can be obtained through step S202.

[0078] The process of adjusting the rotor position compensation angle for each abnormal noise speed zone within the abnormal noise speed band is the same. The following describes the process of adjusting the rotor position compensation angle, taking any abnormal noise speed zone as the target abnormal noise speed zone as an example, including the following steps 1-3:

[0079] Step 1: Set the target range hood to the target noise-prone speed range.

[0080] In step 1, the debugging control equipment sends a constant speed control command to the target range hood. The range hood responds to the constant speed control command and sets the fan speed of the range hood to the target abnormal noise speed range.

[0081] Step 2: Provide different rotor position compensation angles to the target range hood fan in stages to obtain the vibration and noise levels corresponding to different rotor position compensation angles in the target noise speed range.

[0082] In step 2, for any rotor position compensation angle provided by the debugging control equipment, the method for obtaining the corresponding vibration abnormality sound is the same. Specifically, the debugging control equipment sequentially sends each rotor position compensation angle to the target range hood, so that when the target range hood receives a rotor position compensation angle each time, it performs closed-loop adjustment of the fan operation based on the currently received rotor position compensation angle until the actual speed of the fan is in the target abnormality sound speed range. The vibration abnormality sound generated by the target range hood when the actual speed of the fan is in the target abnormality sound speed range is collected as the vibration abnormality sound corresponding to the rotor position compensation angle currently received by the target range hood.

[0083] Specifically, refer to Figure 3 As shown, for any given rotor position compensation angle θ', the actual rotor position angle θ'' of the target range hood's fan during operation is monitored. This is achieved using a non-sensory position observer mounted on the range hood. The monitored actual rotor position angle θ'' is compensated based on the rotor position compensation angle θ' issued by the control equipment to obtain the rotor position control angle θ. Differential calculations are performed on the rotor position control angle θ to estimate the current actual fan speed ω. The estimated current actual speed ω is compared with the abnormal noise speed range ω*. Based on the comparison result, a speed adjustment signal for controlling the fan speed is output. Closed-loop adjustment of the fan speed is performed based on the speed adjustment signal and the rotor position control angle, continuously bringing the actual fan speed closer to the currently set target abnormal noise speed range ω*, until the actual speed ω of the range hood is within the set target abnormal noise speed range ω*. More specifically, the inverter outputs a control signal based on the speed adjustment signal and the rotor position control angle θ, and the inverter outputs a drive signal to drive the fan based on the control signal, so as to drive the fan to run.

[0084] After obtaining the vibration abnormality volume corresponding to each of the multiple rotor position compensation angles under the target abnormality speed range by performing step 2, step 3 is then performed: compare the vibration abnormality volume corresponding to different rotor position compensation angles under the target abnormality speed range, and determine the rotor position compensation angle that is compatible with the target abnormality speed range.

[0085] It should be noted that the voltage and current output by the inverter contain harmonic components, which interfere with the inherent harmonics of the electromagnetic components of the fan's motor, generating various electromagnetic excitation forces. When the frequency of a single electromagnetic force wave is close to or the same as the inherent vibration frequency of the structural components in the range hood, resonance occurs, resulting in vibration and abnormal noise. The rotor position control angle generated by the rotor position compensation angle sent to the range hood by the debugging control equipment is provided to the inverter. This allows the inverter to inject reverse current harmonics into the fan. The reverse current harmonics injected into the fan can cancel out the harmonic components in the operating current waveform input to the fan, thereby improving the overall vibration and noise of the range hood. Different rotor position compensation angles have different degrees of harmonic cancellation on the operating current waveform of the fan, and therefore different degrees of improvement in overall vibration and noise. Therefore, by comparing the vibration noise levels monitored under different rotor position compensation angles in the target noise speed range, the rotor position compensation angle corresponding to the minimum vibration noise level is selected as the target rotor position compensation angle. Thus, the obtained target rotor position compensation angle can be used to minimize the vibration noise generated by the range hood when the range hood speed is in the noise speed range, without having to avoid the noise speed range.

[0086] S203: Generate mapping relationship data based on the rotor position compensation angle corresponding to each abnormal speed zone in the abnormal speed band. The mapping relationship data includes the rotor position compensation angle adapted to each abnormal speed zone in the abnormal speed band.

[0087] It should be noted that the above-described range hood adjustment method can be used for pre-shipment adjustments of the range hood. The abnormal noise speed range and mapping data obtained during the adjustment are configured in the target range hood to improve vibration and noise during its operation. During operation, the range hood controller performs closed-loop control of the fan speed using frequency converter control. Furthermore, if the speed falls within the abnormal noise speed range during this closed-loop control process, an appropriate rotor position compensation angle needs to be injected to improve noise reduction. See below for reference. Figure 4 An embodiment of a range hood operation control method is given, describing the process of improving vibration and noise during the use of the target range hood by utilizing configured mapping relationship data:

[0088] S401. Monitor the actual speed of the range hood fan.

[0089] In this embodiment of the invention, the range hood can be a variable frequency range hood, and the range hood controller is specifically a variable frequency controller, which is used to control the speed of the range hood and the compensation angle control of the rotor position.

[0090] Step S401 involves monitoring the actual rotational speed of the range hood fan using a method similar to or the same as described in the range hood debugging method above. Specifically, the fan includes a motor body. The rotor position of the motor body is observed using a sensorless position observer to obtain the actual rotor position angle. A differential calculation is performed on the actual rotor position angle output by the sensorless position observer to estimate the actual rotational speed of the fan.

[0091] In the specific implementation process, the actual speed of the fan monitored in step S401 is compared with the pre-configured abnormal noise speed band to determine whether the actual speed is within the abnormal noise speed band. If the actual speed of the fan is not within the abnormal noise speed band, it indicates that the range hood is not currently generating vibration or abnormal noise, and therefore there is no need to inject rotor position compensation angle to compensate the rotor position of the fan.

[0092] This invention compares the actual rotational speed of the fan with a pre-configured abnormal noise speed range to determine whether the range hood is currently producing vibration or abnormal noise. This eliminates the need to install vibration and sound sensors in the range hood to monitor for vibration and abnormal noise, thus avoiding the introduction of vibration and sound sensors, increasing costs, and improving the reliability of the range hood.

[0093] If the actual speed of the fan is within the abnormal noise range, then steps S402~S403 are executed to improve the vibration and noise of the range hood:

[0094] S402. If the actual speed of the fan is detected to be within the abnormal speed band, the target compensation angle corresponding to the actual speed is determined based on the pre-configured mapping relationship data. The mapping relationship data includes the rotor position compensation angle adapted to each abnormal speed zone in the abnormal speed band.

[0095] In some implementations, the mapping data can exist in the form of a data table, where each data record corresponds to a specific abnormal speed range and a rotor position compensation angle. Therefore, determining the target compensation angle corresponding to the actual speed based on pre-configured mapping data can be implemented in several ways:

[0096] 1. Obtain the target compensation angle simply by looking up a table: The target compensation angle is obtained by traversing the mapping relationship data in the form of a data table and finding the rotor position compensation angle corresponding to the actual speed. If the rotor position compensation angle corresponding to the actual speed cannot be found, the rotor position compensation angle corresponding to the speed with the smallest difference from the actual speed is used as the target compensation angle.

[0097] 2. To improve the accuracy of the target compensation angle, the target compensation angle can be obtained by looking up a table and interpolation calculation: From each abnormal noise speed zone in the abnormal noise speed band, determine the reference abnormal noise speed zone adjacent to the actual speed; From the mapping relationship data, look up the table to obtain the rotor position compensation angle corresponding to the reference abnormal noise speed zone; Based on the actual speed, the reference abnormal noise speed zone, and the rotor position compensation angle corresponding to the reference abnormal noise speed zone, perform interpolation calculation to determine the target compensation angle.

[0098] Specifically, there are two adjacent reference abnormal noise speed zones: an upper reference abnormal noise speed zone (greater than the actual speed) and a lower reference abnormal noise speed zone (less than the actual speed). Therefore, the rotor position compensation angle corresponding to the upper reference abnormal noise speed zone and the rotor position compensation angle corresponding to the lower reference abnormal noise speed zone can be obtained by looking up a table. The target compensation angle can then be determined by linear interpolation, which interpolates the actual speed, the upper and lower reference abnormal noise speed zones, and the corresponding rotor position compensation angles.

[0099] S403. Perform angle compensation on the rotor position of the fan based on the target compensation angle.

[0100] In step S403, the actual angle of the fan rotor position is detected; the rotor position control angle is obtained by summing the actual rotor position angle and the target compensation angle; the rotor position of the fan is controlled based on the rotor position control angle, thereby realizing the angle compensation of the rotor position.

[0101] The present invention achieves the injection of appropriate current harmonics at a fixed speed to change the original vibration characteristics of the range hood, thereby improving the vibration and noise of the entire range hood. The range hood no longer needs to avoid the noise speed range during operation, thus avoiding the loss of speed of the range hood and realizing the continuous change of the fan speed of the range hood.

[0102] Based on the same inventive concept, embodiments of the present invention provide a range hood operation control device, see reference. Figure 5 As shown, it includes:

[0103] The speed monitoring unit 501 is used to monitor the actual speed of the range hood fan;

[0104] The compensation angle determination unit 502 is used to determine the target compensation angle corresponding to the actual speed if the actual speed of the fan is detected to be within the abnormal speed band, based on the pre-configured mapping relationship data. The mapping relationship data includes the rotor position compensation angle adapted to each abnormal speed zone in the abnormal speed band.

[0105] The compensation control unit 503 is used to perform angle compensation on the rotor position of the fan based on the target compensation angle.

[0106] In some implementations, the abnormal noise speed band includes multiple abnormal noise speed zones; the compensation angle determination unit 502 includes:

[0107] From each abnormal speed zone in the abnormal speed zone, determine the reference abnormal speed zone adjacent to the actual speed;

[0108] From the mapping relationship data, look up the table to obtain the rotor position compensation angle corresponding to the reference abnormal noise speed zone;

[0109] The target compensation angle is determined by interpolation calculation based on the actual rotational speed, the reference abnormal noise speed range, and the rotor position compensation angle corresponding to the reference abnormal noise speed range.

[0110] In some implementations, the mapping relationship data is determined in advance by debugging the range hood and configured in the range hood.

[0111] In some implementations, the compensation control unit 503 includes:

[0112] Angle detection subunit is used to detect the actual angle of the fan rotor position;

[0113] Angle summation subunit is used to sum the actual rotor position angle and the target compensation angle to obtain the rotor position control angle;

[0114] Angle control subunit is used to control the rotor position of the fan by controlling the angle based on the rotor position.

[0115] Based on the same inventive concept, embodiments of the present invention provide a range hood adjustment device, see reference. Figure 6 As shown, it includes:

[0116] The abnormal noise speed determination unit 601 is used to determine the abnormal noise speed band of the target range hood, and the abnormal noise speed band includes at least one abnormal noise speed zone.

[0117] The compensation angle adjustment unit 602 is used to take each abnormal noise speed zone in the abnormal noise speed zone as the target abnormal noise speed zone, and perform rotor position compensation angle adjustment under the target abnormal noise speed zone for the fan of the target range hood, so as to obtain the rotor position compensation angle adapted to the target abnormal noise speed zone.

[0118] The data generation unit 603 is used to generate mapping relationship data based on the rotor position compensation angle adapted to each abnormal speed zone within the abnormal speed zone. The mapping relationship data includes the rotor position compensation angle adapted to each abnormal speed zone within the abnormal speed zone.

[0119] In some implementations, the compensation angle adjustment unit 602 includes:

[0120] The setting subunit is used to set the target range hood to the target abnormal noise speed range;

[0121] A sub-unit is provided to provide different rotor position compensation angles to the fan of the target range hood in stages, so as to obtain the vibration abnormality sound corresponding to each rotor position compensation angle in the target abnormal sound speed zone of the range hood;

[0122] The comparison sub-unit is used to compare the vibration and noise levels corresponding to different rotor position compensation angles under the target abnormal noise speed range, and to determine the rotor position compensation angle that is compatible with the target abnormal noise speed range.

[0123] In some implementations, the abnormal noise speed determination unit 601 includes:

[0124] The frequency sweep subunit is used to perform a full-machine frequency sweep on M range hoods of the same model as the target range hood in order to determine the abnormal noise speed band of the target range hood, where M is an integer greater than 1.

[0125] In some implementations, the frequency sweep subunit is specifically used for:

[0126] A frequency sweep control command is sent to M range hoods. Based on the frequency sweep control command, the fan of each range hood in the M range hoods is continuously frequency-controlled to control the fan speed of each range hood to continuously change.

[0127] Monitor the vibration and abnormal noise of each of the M range hoods during the continuous change of their fan speed, and obtain the vibration and abnormal noise monitoring results for the M range hoods.

[0128] Based on the vibration and abnormal noise monitoring results, the speed range of abnormal noise was determined.

[0129] In some implementations, a subunit is defined, specifically for:

[0130] Send a constant speed control command to the target range hood, and set the target range hood to the target abnormal noise speed range based on the constant speed control command;

[0131] Different rotor position compensation angles are provided to the target range hood fan in stages to obtain the vibration and noise levels corresponding to each rotor position compensation angle within the target abnormal noise speed range, including:

[0132] The target range hood is sequentially issued each rotor position compensation angle so that when the target range hood receives the rotor position compensation angle each time, it can perform closed-loop adjustment of the fan operation based on the currently received rotor position compensation angle until the actual speed of the fan is in the target abnormal noise speed range.

[0133] The vibration and abnormal noise generated by the target range hood are collected when the actual speed of the fan is within the target abnormal noise speed range.

[0134] In some implementations, a configuration unit is also included, which configures the abnormal noise speed band and the mapping relationship data to the target range hood after the mapping relationship data is generated.

[0135] Based on the same inventive concept, an embodiment of the present invention provides a range hood adjustment system, comprising:

[0136] Target: Range hood;

[0137] The control equipment is debugged and a communication link is established with the target range hood. The abnormal noise speed band of the target range hood is determined, which includes at least one abnormal noise speed zone. Each abnormal noise speed zone within the abnormal noise speed band is designated as the target abnormal noise speed zone. For the fan of the target range hood, the rotor position compensation angle under the target abnormal noise speed zone is adjusted to obtain the rotor position compensation angle adapted to the target abnormal noise speed zone. Based on the rotor position compensation angle adapted to each abnormal noise speed zone within the abnormal noise speed band, mapping relationship data is generated, wherein the mapping relationship data includes the rotor position compensation angle adapted to each abnormal noise speed zone within the abnormal noise speed band.

[0138] In some implementations, the target range hood includes a range hood controller connected to a fan;

[0139] The debugging and control equipment is specifically designed to establish a communication link with the smoke machine controller, and to send constant speed control commands to the smoke machine controller based on the communication link. After sending the constant speed control commands, different rotor position compensation angles are sent sequentially.

[0140] The range hood controller is used to receive and respond to constant speed control commands, set the range hood to the target abnormal noise speed range, and also to receive the rotor position compensation angle issued by the debugging control equipment each time; and to perform closed-loop adjustment of the fan operation according to the currently received rotor position compensation angle until the actual speed of the fan is in the target abnormal noise speed range.

[0141] The debugging and control equipment is also used to collect the vibration abnormality sound of the target range hood when the actual speed of the fan is in the target abnormality sound speed range, and use it as the vibration abnormality sound corresponding to the current position compensation angle.

[0142] Based on the same inventive concept, this invention provides a range hood, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the range hood operation control method of this invention.

[0143] Based on the same inventive concept, this embodiment of the invention provides a debugging and control device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the range hood debugging method of this embodiment of the invention.

[0144] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this invention and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units can be integrated into a single processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.

[0145] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0146] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0147] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0148] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A method of operating control of a range hood, characterized by, The method comprises: monitoring an actual rotating speed of a fan of an extractor hood; comparing the actual rotating speed of the fan with a pre-configured abnormal sound rotating speed band to determine whether the actual rotating speed of the fan is in the abnormal sound rotating speed band, if the actual rotating speed of the fan is monitored to be in the abnormal sound rotating speed band, determining a target compensation angle corresponding to the actual rotating speed based on pre-configured mapping relationship data, the mapping relationship data comprising rotor position compensation angles respectively adapted to each abnormal sound rotating speed zone in the abnormal sound rotating speed band, the abnormal sound rotating speed band comprising at least one abnormal sound rotating speed zone, each abnormal sound rotating speed zone in the abnormal sound rotating speed band being taken as a target abnormal sound rotating speed zone, and the rotor position compensation angle adapted to each abnormal sound rotating speed zone being determined by comparing vibration abnormal sound volumes corresponding to different rotor position compensation angles in the target abnormal sound rotating speed zone to determine a rotor position compensation angle corresponding to a minimum vibration abnormal sound volume; performing angle compensation on a rotor position of the fan based on the target compensation angle, comprising: detecting an actual angle of the rotor position of the fan; performing addition calculation on the actual angle of the rotor position and the target compensation angle to obtain a rotor position control angle; and controlling the rotor position of the fan based on the rotor position control angle.

2. The method of claim 1, wherein, The abnormal sound rotating speed band comprises a plurality of abnormal sound rotating speed zones; and the determining of the target compensation angle corresponding to the actual rotating speed based on the pre-configured mapping relationship data comprises: determining a reference abnormal sound rotating speed zone adjacent to the actual rotating speed from each abnormal sound rotating speed zone of the abnormal sound rotating speed band; obtaining a rotor position compensation angle corresponding to the reference abnormal sound rotating speed zone from the mapping relationship data; performing interpolation calculation based on the actual rotating speed, the reference abnormal sound rotating speed zone and the rotor position compensation angle corresponding to the reference abnormal sound rotating speed zone to determine the target compensation angle.

3. The method of claim 1, wherein, The mapping relationship data is determined by pre-debugging of the extractor hood and configured in the extractor hood.

4. A method of commissioning a range hood, characterized in that, The method comprises: determining an abnormal sound rotating speed band of a target extractor hood, the abnormal sound rotating speed band comprising at least one abnormal sound rotating speed zone; taking each abnormal sound rotating speed zone in the abnormal sound rotating speed band as a target abnormal sound rotating speed zone, and performing rotor position compensation angle debugging under the target abnormal sound rotating speed zone for a fan of the target extractor hood to obtain a rotor position compensation angle adapted to the target abnormal sound rotating speed zone; generating mapping relationship data according to the rotor position compensation angles respectively adapted to each abnormal sound rotating speed zone in the abnormal sound rotating speed band, wherein the mapping relationship data comprises the rotor position compensation angles respectively adapted to each abnormal sound rotating speed zone in the abnormal sound rotating speed band, and the rotor position compensation angle adapted to each abnormal sound rotating speed zone is determined by comparing vibration abnormal sound volumes corresponding to different rotor position compensation angles in the target abnormal sound rotating speed zone to determine a rotor position compensation angle corresponding to a minimum vibration abnormal sound volume.

5. The method of claim 4, wherein, The performing of the rotor position compensation angle debugging under the target abnormal sound rotating speed zone for the fan of the target extractor hood comprises: setting the target extractor hood to the target abnormal sound rotating speed zone; providing different rotor position compensation angles to the fan of the target range hood in batches to obtain a vibration abnormal sound volume corresponding to each rotor position compensation angle of the range hood in the target abnormal sound speed range; determining a rotor position compensation angle adapted to the target abnormal sound speed range by comparing the vibration abnormal sound volumes corresponding to different rotor position compensation angles in the target abnormal sound speed range.

6. The method of claim 5, wherein, The method further includes: performing whole-machine sweep frequency processing on M range hoods of the same model as the target range hood to determine the abnormal sound speed range of the target range hood, where M is an integer greater than 1.

7. The method of claim 6, wherein, The method further includes: issuing a sweep frequency control command to the M range hoods, and performing continuous frequency conversion control on the fan of each range hood based on the sweep frequency control command to control the fan of each range hood to continuously change in speed; monitoring the vibration abnormal sound volume of each range hood during the continuous change in speed of the fan of the range hood to obtain a vibration abnormal sound monitoring result for the M range hoods; determining the abnormal sound speed range based on the vibration abnormal sound monitoring result.

8. The method of claim 7, wherein, The method further includes: issuing a speed setting control command to the target range hood to set the target range hood to the target abnormal sound speed range based on the speed setting control command. The method further includes: issuing each rotor position compensation angle to the target range hood in sequence, so that the target range hood performs closed-loop adjustment on the operation of the fan based on the rotor position compensation angle received in the current batch until the actual speed of the fan is in the target abnormal sound speed range; collecting the vibration abnormal sound volume generated by the target range hood when the actual speed of the fan is in the target abnormal sound speed range.

9. The method of any one of claims 4-8, wherein, After the mapping relationship data is generated, the method further includes: configuring the abnormal sound speed range and the mapping relationship data to the target range hood.

10. A control device for operating a range hood, characterized in that The method further includes: a speed monitoring unit configured to monitor the actual speed of the fan of the range hood. The compensation angle determination unit is configured to compare the actual rotating speed of the fan with a preconfigured abnormal sound rotating speed band, to determine whether the actual rotating speed of the fan is in the abnormal sound rotating speed band, and if it is determined that the actual rotating speed of the fan is in the abnormal sound rotating speed band, to determine a target compensation angle corresponding to the actual rotating speed based on preconfigured mapping relationship data, wherein the mapping relationship data includes a rotor position compensation angle respectively adapted for each abnormal sound rotating speed zone in the abnormal sound rotating speed band, the abnormal sound rotating speed band includes at least one abnormal sound rotating speed zone, each abnormal sound rotating speed zone in the abnormal sound rotating speed band is taken as a target abnormal sound rotating speed zone, and the rotor position compensation angle respectively adapted for each abnormal sound rotating speed zone is determined by comparing vibration abnormal sound volumes corresponding to different rotor position compensation angles in the target abnormal sound rotating speed zone, and is the rotor position compensation angle corresponding to the minimum vibration abnormal sound volume. The compensation control unit is configured to perform angle compensation on the rotor position of the fan based on the target compensation angle, including: detecting an actual angle of the rotor position of the fan; performing addition calculation on the actual angle of the rotor position and the target compensation angle to obtain a rotor position control angle; and controlling the rotor position of the fan based on the rotor position control angle.

11. A range hood commissioning device, characterized by, The method comprises: The abnormal sound rotating speed determination unit is configured to determine an abnormal sound rotating speed band of a target extractor hood, and the abnormal sound rotating speed band includes at least one abnormal sound rotating speed zone. The compensation angle debugging unit is configured to take each abnormal sound rotating speed zone in the abnormal sound rotating speed band as a target abnormal sound rotating speed zone, and perform rotor position compensation angle debugging for a fan of the target extractor hood in the target abnormal sound rotating speed zone to obtain a rotor position compensation angle respectively adapted for the target abnormal sound rotating speed zone. The data generation unit is configured to generate mapping relationship data according to the rotor position compensation angle respectively adapted for each abnormal sound rotating speed zone in the abnormal sound rotating speed band, and the mapping relationship data includes the rotor position compensation angle respectively adapted for each abnormal sound rotating speed zone in the abnormal sound rotating speed band, and the rotor position compensation angle respectively adapted for each abnormal sound rotating speed zone is determined by comparing vibration abnormal sound volumes corresponding to different rotor position compensation angles in the target abnormal sound rotating speed zone, and is the rotor position compensation angle corresponding to the minimum vibration abnormal sound volume.

12. A range hood commissioning system, characterized by, The method comprises: A target extractor hood; The debugging control device establishes a communication link with the target range hood, determines an abnormal sound speed band of the target range hood, the abnormal sound speed band including at least one abnormal sound speed zone; takes each abnormal sound speed zone in the abnormal sound speed band as a target abnormal sound speed zone, and performs rotor position compensation angle debugging under the target abnormal sound speed zone for a fan of the target range hood to obtain a rotor position compensation angle adapted to the target abnormal sound speed zone; and generates mapping relationship data according to the rotor position compensation angle adapted to each abnormal sound speed zone in the abnormal sound speed band, wherein the mapping relationship data includes the rotor position compensation angle adapted to each abnormal sound speed zone in the abnormal sound speed band, and the rotor position compensation angle adapted to each abnormal sound speed zone is a rotor position compensation angle corresponding to a minimum vibration abnormal sound volume determined by comparing vibration abnormal sound volumes corresponding to different rotor position compensation angles under the target abnormal sound speed zone.

13. The system of claim 12, wherein, The target range hood includes a range hood controller connected to the fan. The debugging control device specifically establishes a communication link with the range hood controller, and issues a constant speed control command to the range hood controller based on the communication link, and then issues different rotor position compensation angles in sequence after issuing the constant speed control command. The range hood controller is configured to set the range hood to a target abnormal sound speed zone in response to the constant speed control command, and to receive the rotor position compensation angle issued by the debugging control device each time, and to perform closed-loop adjustment on the operation of the fan according to the rotor position compensation angle received at the current time until the actual speed of the fan is in the target abnormal sound speed zone. The debugging control device is further configured to collect the vibration abnormal sound volume of the target range hood when the actual speed of the fan is in the target abnormal sound speed zone as the vibration abnormal sound volume corresponding to the position compensation angle issued at the current time.

14. An extractor hood, characterized in that The range hood operation control method includes: A memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the range hood operation control method according to any one of claims 1-3 when executing the computer program.

15. A commissioning control device, comprising: The range hood debugging method includes: A memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the range hood debugging method according to any one of claims 4-9 when executing the computer program.

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