A wind speed equalization control method, device and unit

Abstract

The application discloses a wind speed equalization control method, device and unit. The method comprises the following steps: determining a current wind speed control mode of the unit; wherein the wind speed control mode comprises a constant speed mode and a variable speed mode; if the wind speed control mode is the variable speed mode, adjusting the wind speed of each air outlet according to the indoor temperature and the current wind speed of each air outlet to reduce the wind speed deviation of each air outlet; if the wind speed control mode is the constant speed mode, adjusting the wind speed of each air outlet according to the set wind speed to reduce the wind speed deviation of each air outlet. Through the application, the air supply wind speed under different heat exchange demands can be adjusted, each air outlet can uniformly supply air, local air pipe damage can be avoided, and noise can be reduced.

Description

Technical Field

[0001] This invention relates to the field of generator set technology, and more specifically, to a wind speed equalization control method, device, and generator set. Background Technology

[0002] With the large-scale construction of public buildings, the design and energy-saving measures for tall spaces within these buildings have received increasing attention. For tall buildings, it is often necessary to install multiple fans, ducts, and vents to regulate indoor temperature and humidity. When multiple fan units are operating, uneven airflow can occur from multiple vents within the same unit, leading to potential damage to localized ductwork and increased noise.

[0003] There is currently no effective solution to the problem of uneven airflow caused by multiple air outlets in existing technologies. Summary of the Invention

[0004] This invention provides a wind speed equalization control method, device, and unit to solve the problem of uneven air delivery from multiple air outlets in the prior art.

[0005] To address the aforementioned technical problems, this invention provides a wind speed equalization control method, device, and unit, wherein the method is applied to a unit having at least two air outlets, including:

[0006] Determine the current wind speed control mode of the unit; wherein the wind speed control mode includes constant speed mode and variable speed mode;

[0007] If the wind speed control mode is variable speed mode, the wind speed of each air outlet is adjusted according to the indoor temperature and the current wind speed of each air outlet to reduce the wind speed deviation of each air outlet.

[0008] If the wind speed control mode is constant speed mode, the wind speed of each air outlet is adjusted according to the set wind speed to reduce the wind speed deviation of each air outlet.

[0009] Furthermore, the airflow speed of each air outlet is adjusted according to the indoor temperature and the current airflow speed at each outlet, including:

[0010] Determine whether the indoor temperature has reached the set temperature;

[0011] If so, determine the minimum wind speed among the current wind speeds of each air outlet, and adjust the wind speed of each air outlet to the target wind speed range based on the minimum wind speed.

[0012] If not, the airflow speed of each air outlet is adjusted according to the temperature deviation between the indoor temperature and the set temperature and the current airflow speed of each air outlet.

[0013] Further, adjusting the airflow speed of each air outlet based on the temperature deviation between the indoor temperature and the set temperature and the current airflow speed of each air outlet includes:

[0014] Determine whether the temperature deviation is greater than a first preset threshold;

[0015] If so, determine the maximum wind speed among the current wind speeds of each air outlet, and adjust the wind speed of each air outlet to the target wind speed range based on the maximum wind speed.

[0016] If not, adjust the air speed of each air outlet according to the current air speed distribution of each air outlet.

[0017] Furthermore, the airflow speed at each air outlet is adjusted according to the current airflow speed distribution at each outlet, including:

[0018] The wind speed interval with the largest current wind speed distribution at each air outlet and a smaller range than the preset value is identified as the target wind speed interval.

[0019] Adjust the wind speed at the target air outlet until it falls within the target wind speed range; wherein, the target air outlet is the air outlet whose current wind speed is not within the target wind speed range.

[0020] Further, adjusting the wind speed at the target air outlet until it falls within the target wind speed range includes:

[0021] Determine the relationship between the wind speed at the target air outlet and the upper limit and lower limit of the target wind speed range;

[0022] If the wind speed at the target air outlet is less than the lower limit of the target wind speed range, then the wind speed at the target air outlet will be increased to the lower limit of the target wind speed range.

[0023] If the wind speed at the target air outlet is greater than the upper limit of the target wind speed range, then the wind speed at the target air outlet will be reduced to the upper limit of the target wind speed range.

[0024] Furthermore, the airflow speed at each air outlet is adjusted according to the set wind speed, including:

[0025] Determine whether the current wind speed at each air outlet deviates from the set wind speed by a second preset threshold.

[0026] If so, adjust the airflow speed at that vent;

[0027] If not, maintain the current airflow speed at that vent.

[0028] Furthermore, adjusting the airflow speed at the air outlet includes:

[0029] If the current wind speed at the air outlet is less than the difference between the set wind speed and the second preset threshold, then the wind speed at the air outlet is increased to the difference between the set wind speed and the second preset threshold.

[0030] If the current wind speed at the air outlet is greater than the sum of the set wind speed and the second preset threshold, then the wind speed at the air outlet is reduced to the sum of the set wind speed and the second preset threshold.

[0031] The present invention also provides a wind speed equalization control device, the device comprising:

[0032] The determination module is used to determine the current wind speed control mode of the unit; wherein the wind speed control mode includes constant speed mode and variable speed mode;

[0033] The first adjustment module is used to adjust the wind speed of each air outlet according to the indoor temperature and the current wind speed of each air outlet when the wind speed control mode is variable speed mode, so as to reduce the wind speed deviation of each air outlet.

[0034] The second adjustment module is used to adjust the wind speed of each air outlet according to the set wind speed when the wind speed control mode is constant speed mode, so as to reduce the wind speed deviation of each air outlet.

[0035] The present invention also provides a unit including the above-mentioned wind speed equalization control device.

[0036] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-described wind speed equalization control method.

[0037] By applying the technical solution of this invention, a fixed-speed mode and a variable-speed mode are distinguished. When there is a cooling demand, the air speed of each air outlet is adjusted according to the indoor temperature and the current air speed of each air outlet, taking into account both the cooling demand and the air speed adjustment demand. When there is no cooling demand, the air speed of each air outlet is quickly adjusted to the desired range according to the set temperature. Through the above solution, the air supply speed can be adjusted under different heat exchange demands, so that each air outlet can output air evenly, avoid damage to local air ducts, and reduce noise. Attached Figure Description

[0038] Figure 1 This is a structural diagram of the unit according to an embodiment of the present invention;

[0039] Figure 2 A flowchart of a wind speed equalization control method according to an embodiment of the present invention;

[0040] Figure 3 A flowchart of another wind speed equalization control method according to an embodiment of the present invention;

[0041] Figure 4This is a structural block diagram of a wind speed equalization control device according to an embodiment of the present invention. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail 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.

[0043] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0044] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0045] It should be understood that although the terms "first," "second," etc., may be used to describe preset thresholds in the embodiments of the present invention, these preset thresholds should not be limited to these terms. These terms are only used to distinguish different preset thresholds. For example, without departing from the scope of the embodiments of the present invention, the first preset threshold may also be referred to as the second preset threshold, and similarly, the second preset threshold may also be referred to as the first preset threshold.

[0046] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0047] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0048] The optional embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0049] Example 1

[0050] In tall buildings, it is often necessary to install multiple fans, multiple air ducts, and multiple air outlets to regulate indoor temperature and humidity. When multiple fan units are working, uneven air delivery may occur at multiple air outlets of the same unit, which can easily cause damage to local air ducts and increase noise. Figure 1 A structural diagram of the unit according to an embodiment of the present invention, such as Figure 1 As shown, each air outlet is connected to an air duct, and a fan 1 is installed in the air duct. The speed of each fan is controlled by a speed-regulating motor. Each air outlet is equipped with a wind speed sensor 2 to detect the wind speed at the air outlet.

[0051] In practical applications, the fan speed control modes of the unit include constant speed mode and variable speed mode. The constant speed mode means that the air is discharged at a set speed, while the variable speed mode automatically adjusts the fan speed according to the unit's operating parameters, such as indoor temperature and humidity. Generally, the fan speed control mode is variable speed mode in cooling or heating mode, and constant speed mode in ventilation mode.

[0052] This embodiment provides a wind speed equalization control method, applicable to units with at least two air outlets. Figure 2 A flowchart of a wind speed equalization control method according to an embodiment of the present invention is shown below. Figure 2 As shown, the method includes:

[0053] S101, determine the current wind speed control mode of the unit.

[0054] S102, if the current wind speed control mode of the unit is variable speed mode, the wind speed of each air outlet is adjusted according to the indoor temperature and the current wind speed of each air outlet to reduce the wind speed deviation of each air outlet.

[0055] If the unit is currently operating in cooling or heating mode, the current fan speed control mode is variable speed mode. There is a heat exchange requirement indoors. In order to balance the heat exchange requirement and the fan speed balance, it is necessary to adjust the fan speed of each air outlet according to the indoor temperature and the current fan speed of each air outlet to reduce the fan speed deviation of each air outlet.

[0056] S103 If the current wind speed control mode of the unit is constant speed mode, the wind speed of each air outlet is adjusted according to the set wind speed to reduce the wind speed deviation of each air outlet.

[0057] If the unit is currently operating in ventilation mode, the current wind speed control mode is constant speed mode. There is no heat exchange requirement indoors. The current wind speed of each air outlet can be adjusted according to the set wind speed in constant speed mode to reduce the wind speed deviation of each air outlet. Since the set temperature is a fixed value, the wind speed of each air outlet can be quickly adjusted to the desired range.

[0058] The wind speed equalization control method in this embodiment distinguishes between constant speed mode and variable speed mode. When there is a cooling demand, the wind speed of each air outlet is adjusted according to the indoor temperature and the current wind speed of each air outlet, taking into account both cooling demand and wind speed adjustment demand. When there is no cooling demand, the wind speed of each air outlet is quickly adjusted to the desired range according to the set temperature. Through the above scheme, the air supply wind speed can be adjusted under different heat exchange demands, so that each air outlet can output air evenly, avoid local duct damage, and reduce noise.

[0059] In cooling or heating mode, there is a need for heat exchange indoors. If the indoor temperature has not yet reached the set temperature, a certain fan speed needs to be maintained to ensure that the indoor temperature reaches the set temperature as quickly as possible to meet the user's comfort needs. If the indoor temperature has reached the set temperature, in order to save energy, the fan speed of each air outlet can be adjusted to the lowest setting. Therefore, adjusting the fan speed of each air outlet according to the indoor temperature and the current fan speed of each air outlet can specifically include: determining whether the indoor temperature has reached the set temperature; if so, determining the minimum fan speed among the current fan speeds of each air outlet, and using the minimum fan speed as the reference fan speed, adjusting the fan speed of each air outlet to within the target fan speed range, that is, ensuring that the deviation between the fan speed of each air outlet and the reference fan speed does not exceed the preset value; if not, adjusting the fan speed of each air outlet according to the temperature deviation between the indoor temperature and the set temperature and the current fan speed of each air outlet.

[0060] When the temperature deviation between the indoor temperature and the set temperature is large, it indicates that the heat exchange demand is still relatively high. In this case, it is still necessary to ensure that each air outlet delivers air at a relatively high wind speed to meet the high heat exchange demand. When the temperature deviation between the indoor temperature and the set temperature is small, it indicates that the heat exchange demand is reduced. In this case, the wind speed can be appropriately reduced, but it is necessary to ensure that the wind speed deviation of each air outlet is not too large. Therefore, the wind speed of each air outlet is adjusted according to the temperature deviation between the indoor temperature and the set temperature and the current wind speed of each air outlet. Specifically, this can include: determining whether the temperature deviation is greater than a first preset threshold; if so, it indicates that the heat exchange demand is high, then determining the maximum wind speed among the current wind speeds of each air outlet, and using the maximum wind speed as the reference wind speed, adjusting the wind speed of each air outlet to within the target wind speed range, that is, ensuring that the deviation of the wind speed of each air outlet from the reference wind speed does not exceed the preset value; if not, it indicates that the heat exchange demand is reduced, and in order to adjust the wind speed of as few air outlets as possible, it is necessary to continue to adjust the wind speed of each air outlet according to the current wind speed distribution of each air outlet.

[0061] If the wind speed at most air outlets is within a narrow range, with only a few outlets outside this range, then adjusting the wind speed at only a small number of outlets is sufficient to achieve wind speed balance. Based on this, adjusting the wind speed at each outlet according to its current distribution can specifically include: identifying the wind speed range with the largest distribution and a smaller span than a preset value, as the target wind speed range; adjusting the wind speed at the target outlets until it falls within the target wind speed range; where the target outlets are those whose current wind speed is outside the target wind speed range. Conversely, if the current wind speed at each outlet is concentrated within a small range, indicating that most outlets are within a narrow range with only a few outside, then adjusting the wind speed at the outlets outside the target wind speed range is sufficient to achieve wind speed balance with minimal adjustments to the number of outlets. Since adjusting the airflow speed at the air outlet requires adjusting the speed of the corresponding fan inside that air outlet, the more air outlets whose airflow speed needs to be adjusted, the greater the computational load and the more operations the unit needs to perform. This places a heavier load on the unit's control chip. Therefore, the above solution helps to reduce the load on the unit's chip.

[0062] For example, assuming the wind speeds of each fan are 0.2 m / s, 0.30 m / s, 0.31 m / s, 0.31 m / s, 0.32 m / s, 0.33 m / s, 0.34 m / s, 0.45 m / s, and 0.48 m / s respectively, and the set interval span is less than 0.05 m / s, then the wind speed interval with the most abundant wind speed distribution is the interval of 0.30 m / s to 0.34 m / s. Therefore, the wind speed within the interval of 0.30 m / s to 0.34 m / s (including the limit value) does not need to be adjusted. Only the three wind speed values ​​of 0.2 m / s, 0.45 m / s, and 0.48 m / s need to be adjusted to meet the balance requirement.

[0063] In actual adjustment, it is not required that the wind speed of all air outlets be exactly the same, as long as the error is within a certain range. Therefore, in order to reduce the amount of adjustment, the wind speed of the target air outlet is adjusted until it falls within the target wind speed range. This includes: judging the relationship between the wind speed of the target air outlet and the upper and lower limits of the target wind speed range; if the wind speed of the target air outlet is less than the lower limit of the target wind speed range, the wind speed of the target air outlet is increased to the lower limit of the target wind speed range; if the wind speed of the target air outlet is greater than the upper limit of the target wind speed range, the wind speed of the target air outlet is decreased to the upper limit of the target wind speed range. This setting can ensure that the wind speed adjustment of each target air outlet is minimized, that is, the speed adjustment of the fan motor is minimized, and the fan is kept as stable as possible.

[0064] In the air supply mode, there is no heat exchange requirement indoors, and the wind speed control mode is constant speed mode. In this mode, in order to reduce the deviation of the wind speed of each air outlet, the wind speed of each air outlet is adjusted according to the set wind speed. Specifically, this may include: determining whether the wind speed deviation between the current wind speed of each air outlet and the set wind speed is greater than a second preset threshold; if so, adjusting the wind speed of that air outlet; if not, maintaining the current wind speed of that air outlet.

[0065] Similar to the above embodiments, in order to ensure that the wind speed adjustment of each target air outlet is minimized, that is, to ensure that the speed adjustment of the fan motor is minimized, and thus to ensure the stable operation of the fan, the wind speed of the air outlet is adjusted as follows: if the current wind speed of the air outlet is less than the difference between the set wind speed and the second preset threshold, then the wind speed of the air outlet is increased to the difference between the set wind speed and the second preset threshold; if the current wind speed of the air outlet is greater than the sum of the set wind speed and the second preset threshold, then the wind speed of the air outlet is decreased to the sum of the set wind speed and the second preset threshold.

[0066] Example 2

[0067] The following describes another embodiment of the present invention in detail, taking a unit with three air outlets as an example. Figure 3Here is a flowchart of another wind speed equalization control method according to an embodiment of the present invention, such as Figure 3 As shown, the wind speed equalization control method includes:

[0068] S1. Determine the unit's wind speed control mode. If it is a variable wind speed mode, proceed to step S2; if it is a constant wind speed mode, proceed to step S21. The wind speed control mode includes both constant wind speed mode and variable wind speed mode.

[0069] S2, determine whether the indoor temperature has reached the set temperature. If yes, proceed to step S3; otherwise, proceed to step S12.

[0070] S3. Determine whether V1≤V2 is true. If yes, proceed to step S4; otherwise, proceed to step S9. Wherein, V1 is the wind speed at the first air outlet, and V2 is the wind speed at the second air outlet.

[0071] S4. Determine if V1≤V3 is true. If yes, proceed to step S5; otherwise, proceed to step S11. Where V3 is the wind speed at the third air outlet.

[0072] S5, set V1 to the reference wind speed V0.

[0073] S6. Determine whether |Vi-V0|≤X is true. If yes, proceed to step S7; otherwise, proceed to step S8. Where i = 1, 2, 3.

[0074] S7, keep Vi unchanged.

[0075] S8, adjust Vi until |Vi-V0|≤X is true.

[0076] S9. Determine whether V2≤V3 is true. If yes, proceed to step S10; otherwise, proceed to step S11.

[0077] S10, set V2 to the reference wind speed V0, and then proceed to step S6.

[0078] S11, set V3 to the reference wind speed V0, and then proceed to step S6.

[0079] S12, determine whether V1≥V2 is true. If yes, proceed to step S13; otherwise, proceed to step S18.

[0080] S13, determine whether V1≥V3 is true. If yes, proceed to step S14; otherwise, proceed to step S20.

[0081] S14, set V1 to the reference wind speed V0.

[0082] S15. Determine whether |Vi-V0|≤X is true. If yes, proceed to step S16; otherwise, proceed to step S17.

[0083] S16, keep Vi unchanged.

[0084] S17, adjust Vi until |Vi-V0|≤X is true.

[0085] S18. Determine whether V2≥V3 is true. If yes, proceed to step S19; otherwise, proceed to step S20.

[0086] S19, set V2 to the reference wind speed V0, and then execute step S14.

[0087] S20, set V3 to the reference wind speed V0, and then proceed to step S14.

[0088] S21, determine |Vi-V 设 Check if |≤X is true. If yes, proceed to step S22; otherwise, proceed to step S23. Where V 设 This is the set speed in constant speed mode.

[0089] S22, keep Vi unchanged.

[0090] S23, adjust Vi until |Vi-V|≤X holds true.

[0091] When the unit is in variable speed mode and the indoor temperature reaches the set temperature, wind speed sensor 1 detects the wind speed V1 at the first air outlet in real time, wind speed sensor 2 detects the wind speed V2 at the second air outlet in real time, and wind speed sensor 3 detects the wind speed V3 at the third air outlet in real time. If a large deviation in wind speed at each air outlet is detected for 10 consecutive seconds (time T can be set according to actual needs) (outside the tolerance range), a judgment device compares and determines the minimum wind speed value Vmin (assumed to be V1), and records the motor frequency Hmin and motor speed Rmin. At this time, Vmin is the reference wind speed V0. The wind speeds at the second and third air outlets are detected, and the motor frequency is adjusted according to the reference wind speed V0 and the feedback wind speed using a PID algorithm, thereby changing its synchronous speed. The wind speed at the air outlets is monitored in real time. If |Vi-V0|≤X (where i=2,3) is detected for 10 consecutive seconds (duration can be set according to actual needs), the speed-regulating motor does not operate. At this point, one cycle ends. After the first cycle ends (120 seconds, duration can be set according to actual needs), if a large deviation in the air velocity at each air outlet is detected for 10 consecutive seconds (duration can be set according to actual needs) (outside the tolerance range), the judgment device re-compares the air velocity values ​​of each air outlet to obtain a new minimum air velocity value V'min (assuming it is V2, then V2 = V0). The process is then repeated as in the first cycle to complete the second cycle. This cycle repeats until a mode switch or power-off command is issued, at which point the cycle exits.

[0092] When the unit is in constant speed mode, each wind speed sensor detects the wind speed at the air outlet in real time, and the judgment device compares and judges the wind speed. When the wind speed at each air outlet is continuously detected for 10 seconds (the duration can be set according to actual needs), |Vi-V 设 When |>X(i=1,2,3), the drive operates according to the set wind speed V 设 The system uses a PID algorithm to control and adjust the motor frequency based on feedback wind speed, thereby changing its synchronous speed. It also monitors the wind speed at the vent in real time. If the wind speed is detected continuously for 10 seconds (duration can be set according to actual needs), |Vi-V 设 If |≤X, the speed-regulating motor will not operate. At this time, V 设 A preset wind speed V' is provided for the user, where X is the wind speed tolerance value. Subsequent actions are the same as in variable speed mode. The above control scheme can be connected to a BMS for remote setting and control.

[0093] Example 3

[0094] This embodiment provides a wind speed equalization control device. Figure 4 This is a structural block diagram of a wind speed equalization control device according to an embodiment of the present invention, such as... Figure 4 As shown, the wind speed equalization control device includes:

[0095] The determination module 10 is used to determine the current wind speed control mode of the unit; wherein, the wind speed control mode includes constant speed mode and variable speed mode.

[0096] The first adjustment module 20 is used to adjust the wind speed of each air outlet according to the indoor temperature and the current wind speed of each air outlet when the wind speed control mode is variable speed mode, so as to reduce the wind speed deviation of each air outlet.

[0097] If the unit is currently operating in cooling or heating mode, the current fan speed control mode is variable speed mode. There is a heat exchange requirement indoors. In order to balance the heat exchange requirement and the fan speed balance, it is necessary to adjust the fan speed of each air outlet according to the indoor temperature and the current fan speed of each air outlet to reduce the fan speed deviation of each air outlet.

[0098] The second adjustment module 30 is used to adjust the wind speed of each air outlet according to the set wind speed when the wind speed control mode is constant speed mode, so as to reduce the wind speed deviation of each air outlet.

[0099] If the unit is currently operating in ventilation mode, the current wind speed control mode is constant speed mode. There is no heat exchange requirement indoors. The current wind speed of each air outlet can be adjusted according to the set wind speed in constant speed mode to reduce the wind speed deviation of each air outlet. Since the set temperature is a fixed value, the wind speed of each air outlet can be quickly adjusted to the desired range.

[0100] The wind speed equalization control device in this embodiment distinguishes between constant speed mode and variable speed mode. When there is a cooling demand, it adjusts the wind speed of each air outlet according to the indoor temperature and the current wind speed of each air outlet, taking into account both cooling demand and wind speed adjustment demand. When there is no cooling demand, it quickly adjusts the wind speed of each air outlet to the desired range according to the set temperature. Through the above scheme, the air supply wind speed can be adjusted under different heat exchange demands, so that each air outlet can output air evenly, avoid damage to local air ducts, and reduce noise.

[0101] In cooling or heating mode, there is a need for heat exchange indoors. If the indoor temperature has not yet reached the set temperature, a certain airflow speed needs to be maintained to ensure that the indoor temperature reaches the set temperature as quickly as possible to meet the user's comfort needs. If the indoor temperature has reached the set temperature, in order to save energy, the airflow speed of each air outlet can be adjusted to the lowest level. Therefore, the first adjustment module 20 is specifically used to: determine whether the indoor temperature has reached the set temperature; if so, determine the minimum airflow speed among the current airflow speeds of each air outlet, and adjust the airflow speed of each air outlet to the target airflow speed range based on the minimum airflow speed, that is, to ensure that the deviation between the airflow speed of each air outlet and the reference airflow speed does not exceed the preset value; if not, adjust the airflow speed of each air outlet according to the temperature deviation between the indoor temperature and the set temperature and the current airflow speed of each air outlet.

[0102] When the temperature deviation between the indoor temperature and the set temperature is large, it indicates that the heat exchange demand is still relatively high. At this time, it is still necessary to ensure that each air outlet delivers air at a relatively high wind speed to meet the high heat exchange demand. When the temperature deviation between the indoor temperature and the set temperature is small, it indicates that the heat exchange demand is reduced. At this time, the wind speed can be appropriately reduced, but it is necessary to ensure that the wind speed deviation of each air outlet is not too large. Therefore, the first adjustment module 20 is further specifically used to: determine whether the temperature deviation is greater than a first preset threshold; if so, it indicates that the heat exchange demand is high, and then determine the maximum wind speed among the current wind speeds of each air outlet, and use the maximum wind speed as the reference wind speed to adjust the wind speed of each air outlet to within the target wind speed range, that is, to ensure that the deviation of the wind speed of each air outlet from the reference wind speed does not exceed the preset value; if not, it indicates that the heat exchange demand is reduced, and in order to adjust the wind speed of as few air outlets as possible, it is necessary to continue to adjust the wind speed of each air outlet according to the current wind speed distribution of each air outlet.

[0103] If the wind speed at most air outlets is within a narrow range, with only a few outlets outside this range, then adjusting the wind speed at only a small number of outlets is sufficient to achieve wind speed balance. Based on this, the first adjustment module 20, when adjusting the wind speed of each outlet according to its current wind speed distribution, specifically performs the following operations: It identifies the wind speed range with the largest current wind speed distribution that is less than a preset value, as the target wind speed range; it then adjusts the wind speed of the target outlets until it falls within the target wind speed range. The target outlets are those whose current wind speed is not within the target wind speed range. If the current wind speed at each outlet is concentrated in a small range, it indicates that the current wind speed at most outlets is within a narrow range, with only a few outside this range. Therefore, adjusting the wind speed of the outlets whose current wind speed is not within the target wind speed range is sufficient to achieve wind speed balance with minimal adjustment of the wind speed at the fewest outlets. Since adjusting the airflow speed at the air outlet requires adjusting the speed of the corresponding fan inside that air outlet, the more air outlets whose airflow speed needs to be adjusted, the greater the computational load and the more operations the unit needs to perform. This places a heavier load on the unit's control chip. Therefore, the above solution helps to reduce the load on the unit's chip.

[0104] In actual adjustment, it is not required that the wind speed of all air outlets be exactly the same, as long as the error is within a certain range. Therefore, in order to reduce the amount of adjustment, when the first adjustment module 20 adjusts the wind speed of the target air outlet until it falls within the target wind speed range, the specific operation performed is as follows: determine the relationship between the wind speed of the target air outlet and the upper and lower limits of the target wind speed range; if the wind speed of the target air outlet is less than the lower limit of the target wind speed range, then increase the wind speed of the target air outlet to the lower limit of the target wind speed range; if the wind speed of the target air outlet is greater than the upper limit of the target wind speed range, then decrease the wind speed of the target air outlet to the upper limit of the target wind speed range. This setting can ensure that the wind speed adjustment of each target air outlet is minimized, that is, minimize the speed adjustment of the fan motor, and ensure the stable operation of the fan as much as possible.

[0105] In the air supply mode, there is no heat exchange requirement indoors, and the wind speed control mode is constant speed mode. In this mode, in order to reduce the deviation of the wind speed of each air outlet, the second adjustment module 30 is specifically used to: determine whether the wind speed deviation between the current wind speed and the set wind speed of each air outlet is greater than the second preset threshold; if so, adjust the wind speed of the air outlet; if not, maintain the current wind speed of the air outlet.

[0106] Similar to the above embodiments, in order to ensure that the wind speed adjustment of each target air outlet is minimized, that is, to ensure that the speed adjustment of the fan motor is minimized, and thus to ensure the stable operation of the fan, the second adjustment module 30 is further specifically used to: when the current wind speed of the air outlet is less than the difference between the set wind speed and the second preset threshold, increase the wind speed of the air outlet to the difference between the set wind speed and the second preset threshold; when the current wind speed of the air outlet is greater than the sum of the set wind speed and the second preset threshold, decrease the wind speed of the air outlet to the sum of the set wind speed and the second preset threshold.

[0107] Example 4

[0108] This embodiment provides a unit including the wind speed equalization control device described above, which is used to adjust the supply air speed under different heat exchange requirements, so that each air outlet can output air evenly, avoid local duct damage, and reduce noise.

[0109] Example 5

[0110] This embodiment provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the wind speed equalization control method of the above embodiment.

[0111] The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0112] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wind speed equalization control method, applied to a unit with at least two air outlets, characterized in that, The method includes: Determine the current wind speed control mode of the unit; wherein the wind speed control mode includes constant speed mode and variable speed mode; If the wind speed control mode is variable speed mode, the wind speed of each air outlet is adjusted according to the indoor temperature and the current wind speed of each air outlet to reduce the wind speed deviation of each air outlet; this includes: determining whether the indoor temperature has reached the set temperature; if so, determining the minimum wind speed among the current wind speeds of each air outlet, and adjusting the wind speed of each air outlet to within the target wind speed range based on the minimum wind speed; if not, adjusting the wind speed of each air outlet according to the temperature deviation between the indoor temperature and the set temperature and the current wind speed of each air outlet; adjusting the wind speed of each air outlet according to the temperature deviation between the indoor temperature and the set temperature and the current wind speed of each air outlet includes: determining the temperature... If the deviation is greater than a first preset threshold, then determine the maximum wind speed among the current wind speeds of each air outlet, and adjust the wind speed of each air outlet to within the target wind speed range based on the maximum wind speed; if not, adjust the wind speed of each air outlet according to the distribution of the current wind speeds of each air outlet; adjusting the wind speed of each air outlet according to the distribution of the current wind speeds of each air outlet includes: determining the wind speed range with the largest wind speed distribution among the current wind speeds of each air outlet, with a range smaller than a preset value, as the target wind speed range; adjusting the wind speed of the target air outlet until it falls within the target wind speed range; wherein, the target air outlet is the air outlet whose current wind speed is not within the target wind speed range. If the wind speed control mode is constant speed mode, the wind speed of each air outlet is adjusted according to the set wind speed to reduce the wind speed deviation of each air outlet.

2. The method according to claim 1, characterized in that, Adjusting the airflow speed at the target air outlet until it falls within the target airflow speed range includes: Determine the relationship between the wind speed at the target air outlet and the upper limit and lower limit of the target wind speed range; If the wind speed at the target air outlet is less than the lower limit of the target wind speed range, then the wind speed at the target air outlet will be increased to the lower limit of the target wind speed range. If the wind speed at the target air outlet is greater than the upper limit of the target wind speed range, then the wind speed at the target air outlet will be reduced to the upper limit of the target wind speed range.

3. The method according to claim 1, characterized in that, Adjust the airflow speed of each air outlet according to the set airflow speed, including: Determine whether the current wind speed at each air outlet deviates from the set wind speed by a second preset threshold. If so, adjust the airflow speed at that vent; If not, maintain the current airflow speed at that vent.

4. The method according to claim 3, characterized in that, Adjusting the airflow speed at the air outlet includes: If the current wind speed at the air outlet is less than the difference between the set wind speed and the second preset threshold, then the wind speed at the air outlet is increased to the difference between the set wind speed and the second preset threshold. If the current wind speed at the air outlet is greater than the sum of the set wind speed and the second preset threshold, then the wind speed at the air outlet is reduced to the sum of the set wind speed and the second preset threshold.

5. A wind speed equalization control device, characterized in that, The device includes: The determination module is used to determine the current wind speed control mode of the unit; wherein, the wind speed control mode includes constant speed mode and variable speed mode; The first adjustment module is used to adjust the air speed of each air outlet according to the indoor temperature and the current air speed of each air outlet when the wind speed control mode is variable speed mode, so as to reduce the air speed deviation of each air outlet; including: determining whether the indoor temperature has reached the set temperature; if so, determining the minimum air speed among the current air speeds of each air outlet, and adjusting the air speed of each air outlet to the target air speed range based on the minimum air speed; if not, adjusting the air speed of each air outlet according to the temperature deviation between the indoor temperature and the set temperature and the current air speed of each air outlet; adjusting the air speed of each air outlet according to the temperature deviation between the indoor temperature and the set temperature and the current air speed of each air outlet includes: judging If the temperature deviation is greater than a first preset threshold, then determine the maximum wind speed among the current wind speeds of each air outlet, and adjust the wind speed of each air outlet to within the target wind speed range based on the maximum wind speed; if not, adjust the wind speed of each air outlet according to the distribution of the current wind speeds of each air outlet. Adjusting the wind speed of each air outlet according to the distribution of the current wind speeds of each air outlet includes: determining the wind speed range with the largest wind speed distribution among the current wind speeds of each air outlet (with a range span smaller than a preset value) as the target wind speed range; adjusting the wind speed of the target air outlet until it falls within the target wind speed range; wherein, the target air outlet is the air outlet whose current wind speed is not within the target wind speed range. The second adjustment module is used to adjust the wind speed of each air outlet according to the set wind speed when the wind speed control mode is constant speed mode, so as to reduce the wind speed deviation of each air outlet.

6. A generator unit, characterized in that, Includes the wind speed equalization control device as described in claim 5.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 1 to 4.

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