Control method, control device, and computer-readable storage medium for a ducted fan

Abstract

The application discloses a ducted air conditioner control method, a control device and a computer readable storage medium, and relates to the technical field of ducted air conditioner control, and comprises the following steps: acquiring energy requirements of each partition space, and determining an energy requirement from the energy requirements of each partition space as a target energy requirement of a ducted air conditioner; determining a target compressor frequency of the ducted air conditioner according to the target energy requirement; acquiring air outlet parameters of each partition space, and calculating a target air outlet requirement of the ducted air conditioner according to the air outlet parameters of each partition space; determining a target rotating speed of a fan of the ducted air conditioner according to the target air outlet requirement; and controlling the ducted air conditioner to operate at the target compressor frequency and the target rotating speed. The application can guarantee the refrigeration / heating effect of the ducted air conditioner in each partition space managed by the ducted air conditioner, so as to improve the use experience of the ducted air conditioner for users.

Description

Technical Field

[0001] This application relates to the field of duct air conditioner control technology, and in particular to a control method, control device and computer-readable storage medium for a duct air conditioner. Background Technology

[0002] Currently, the control of ducted air conditioners is usually achieved by the user manually operating switch commands to control the opening and closing of the air valves in the relevant zones, or by using sensors to sense whether the temperature of the relevant zones has reached the set temperature, thereby controlling all the corresponding air valves to open or close, so as to achieve cooling or heating in each zone.

[0003] However, when using these control methods to control the operation of ducted air conditioners, it is easy to cause a mismatch between the actual cooling / heating capacity and actual air volume of each zone managed by the ducted air conditioner and the cooling / heating demand and air volume demand, thereby affecting the cooling / heating effect and consequently affecting the user's experience with the ducted air conditioner. Summary of the Invention

[0004] The main purpose of this application is to provide a control method, control device and computer-readable storage medium for ducted air conditioners, which aims to ensure the cooling / heating effect of the ducted air conditioner in each zone it manages, so as to improve the user experience of the ducted air conditioner.

[0005] To achieve the above objectives, this application provides a control method for a ducted air handling unit, comprising:

[0006] The energy demand of each partition space is obtained, and an energy demand is determined from the energy demand of each partition space as the target energy demand of the duct machine.

[0007] The target compressor frequency of the duct unit is determined based on the target energy demand.

[0008] Obtain the air outlet parameters of each zone space, and calculate the target air outlet demand of the duct air conditioner based on the air outlet parameters of each zone space;

[0009] Based on the target air output demand, determine the target speed of the fan in the duct air handling unit;

[0010] The ducted air conditioner is controlled to operate at the target compressor frequency and target speed.

[0011] In one embodiment, the air outlet parameters include the maximum air outlet volume and target opening degree of the air valve;

[0012] The step of calculating the target air output demand of the ducted air unit based on the air output parameters of each zone includes:

[0013] Calculate the product of the maximum airflow of each zone's air valve and its target opening to obtain the current airflow demand of each zone.

[0014] Calculate the sum of the current air supply demand values ​​to obtain the initial air supply demand of the duct unit;

[0015] The target air output demand of the ducted air conditioner is obtained by multiplying the initial air output demand by the wind speed coefficient corresponding to the set wind speed of the ducted air conditioner.

[0016] In one embodiment, the method further includes:

[0017] Based on the energy demand of each zone and the operating power of the duct unit, the target opening degree of the air valve in each zone is determined.

[0018] In one embodiment, the step of determining the target opening degree of the air valve in each zone based on the energy demand of each zone and the operating power of the duct unit includes:

[0019] Based on the energy demand of each zone, determine the target power allocation ratio of the air valves in each zone;

[0020] The target operating power of each zone's air valve is obtained by multiplying the target power allocation ratio of the air valve in each zone with the operating power of the air duct machine.

[0021] The target opening degree of each zone's air valve is determined based on its target operating power.

[0022] In one embodiment, the step of obtaining the energy demand of each partition space includes:

[0023] Obtain the target temperature for each partition space;

[0024] The energy requirements for each zone are determined based on the target temperature of each zone.

[0025] In one embodiment, the step of determining an energy demand from the energy demands of each partition space as the target energy demand of the duct unit includes:

[0026] Based on the temperature difference between the current temperature and the target temperature of each partition space, the energy demand of each candidate partition space is determined from the energy demand of each partition space.

[0027] An energy demand is determined from the energy demands of each candidate partition space and used as the target energy demand of the duct machine.

[0028] In one embodiment, the step of determining the energy demand of each candidate partition space from the energy demand of each partition space based on the temperature difference between the current temperature and the target temperature of each partition space includes:

[0029] If any of the temperature differences is outside the preset temperature difference range, then the energy demand of each partition space whose temperature difference is outside the preset temperature difference range shall be taken as the energy demand of each candidate partition space.

[0030] If all the temperature differences are within the preset temperature difference range, then the energy demand of each partition space will be used as the energy demand of each candidate partition space.

[0031] In one embodiment, the step of determining the target compressor frequency of the duct unit based on the target energy demand includes:

[0032] Based on the target energy demand, determine the compressor frequency compensation value of the duct air conditioner;

[0033] The target compressor frequency of the ducted air conditioner is obtained by calculating the sum of the current compressor frequency and the compressor frequency compensation value.

[0034] In one embodiment, the step of determining the compressor frequency compensation value of the duct air conditioner based on the target energy demand includes:

[0035] Obtain the target opening degree of the air valve in the partition space corresponding to the target energy demand, and use it as the reference opening degree;

[0036] Based on the preset mapping relationship between opening degree and compressor frequency compensation value, the compressor frequency compensation value corresponding to the reference opening degree is obtained and used as the compressor frequency compensation value of the duct machine.

[0037] In one embodiment, the step of determining the target rotational speed of the fan of the ducted air conditioner based on the target air output demand includes:

[0038] Based on the preset mapping relationship between air demand and rotation speed, the rotation speed corresponding to the target air demand is obtained and used as the target rotation speed of the fan of the duct machine.

[0039] In addition, to achieve the above objectives, this application also provides a control device, the control device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method for the duct machine as described above.

[0040] In addition, to achieve the above objectives, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the control method for the duct machine as described above.

[0041] In addition, to achieve the above objectives, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the control method for the duct machine as described above.

[0042] This application provides a control method for a ducted air conditioner. First, the energy demand of each zone is obtained, and an energy demand is determined from these zone demands as the target energy demand of the ducted air conditioner. Then, based on the target energy demand, the target compressor frequency of the ducted air conditioner is determined; that is, the compressor frequency that the ducted air conditioner's compressor should reach to match the actual energy output with the target energy demand is determined. Next, the air outlet parameters of each zone are obtained, and the target air outlet demand of the ducted air conditioner is calculated based on these parameters. Then, based on the target air outlet demand, the target fan speed of the ducted air conditioner is determined; that is, the fan speed that the ducted air conditioner should reach to match the actual air outlet volume with the target air outlet demand is determined. Finally, by controlling the ducted air conditioner to operate at the target compressor frequency and target speed, the ducted air conditioner can output energy matching the target energy demand and output air volume matching the target air outlet demand.

[0043] Therefore, when controlling the ducted air conditioner, this application utilizes the energy demand (i.e., cooling / heating demand) and airflow demand of the ducted air conditioner in each zone it manages to flexibly adjust the compressor frequency and fan speed. This ensures that the actual cooling / heating output and airflow of the ducted air conditioner match the cooling / heating output and airflow demand, thereby guaranteeing the cooling / heating effect of the ducted air conditioner in each zone it manages and improving the user experience. Attached Figure Description

[0044] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1A flowchart illustrating the control method for a ducted air conditioner provided in the first embodiment of this application;

[0047] Figure 2 A schematic diagram illustrating the target opening degree setting principle of the partition space air valve in the cooling mode provided in the embodiments of this application;

[0048] Figure 3 A schematic diagram illustrating the target opening degree setting principle of the partition space air valve in the heating mode provided in this application embodiment;

[0049] Figure 4 A schematic diagram illustrating the overall implementation flow of the control method for the ducted air conditioner provided in this application embodiment;

[0050] Figure 5 A schematic diagram of the module structure of the control device for the duct air conditioner provided in the embodiments of this application;

[0051] Figure 6 This is a schematic diagram of the hardware operating environment involved in the embodiments of this application.

[0052] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0054] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0055] Ductless air conditioner is short for concealed air conditioner.

[0056] Currently, the control of ducted air conditioners is usually achieved by the user manually operating switch commands to control the opening and closing of the air valves in the relevant zones, or by using sensors to sense whether the temperature of the relevant zones has reached the set temperature, thereby controlling all the corresponding air valves to open or close, so as to achieve cooling or heating in each zone.

[0057] However, when using these control methods to control the operation of ducted air conditioners, it is easy to cause a mismatch between the actual cooling / heating capacity and actual air volume of each zone managed by the ducted air conditioner and the cooling / heating demand and air volume demand, thereby affecting the cooling / heating effect and consequently affecting the user's experience with the ducted air conditioner.

[0058] For example, when the actual cooling capacity exceeds the cooling demand, the excess cooling capacity will cause unnecessary energy consumption for the ducted air conditioner. Furthermore, if the actual cooling capacity is too high, the air outlet temperature at the vents of each zone will be too low, leading to user discomfort. Conversely, when the actual cooling capacity is less than the cooling demand, the cooling effect will be poor, resulting in slow or no temperature reaching.

[0059] For example, when the actual airflow exceeds the required airflow, the excessive airflow of the ducted air conditioner can cause excessive pressure on the duct, which may damage the duct. Furthermore, excessive airflow can cause discomfort to the user. When the actual airflow is less than the required airflow, insufficient cooling input will result in poor cooling performance, causing slow or no temperature reaching.

[0060] Based on this, this application provides a control method for a ducted air conditioner. First, the energy demand of each zone is obtained, and an energy demand is determined from these zone demands as the target energy demand of the ducted air conditioner. Then, based on the target energy demand, the target compressor frequency of the ducted air conditioner is determined, i.e., the compressor frequency that the compressor should reach to match the actual energy output with the target energy demand. Next, the air outlet parameters of each zone are obtained, and the target air outlet demand of the ducted air conditioner is calculated based on these parameters. Then, based on the target air outlet demand, the target fan speed of the ducted air conditioner is determined, i.e., the fan speed that the fan should reach to match the actual air outlet volume with the target air outlet demand. Finally, by controlling the ducted air conditioner to operate at the target compressor frequency and target speed, the ducted air conditioner can output energy matching the target energy demand and output air volume matching the target air outlet demand.

[0061] Therefore, when controlling the ducted air conditioner, this application utilizes the energy demand (i.e., cooling / heating demand) and airflow demand of the ducted air conditioner in each zone it manages to flexibly adjust the compressor frequency and fan speed. This ensures that the actual cooling / heating output and airflow of the ducted air conditioner match the cooling / heating output and airflow demand, thereby guaranteeing the cooling / heating effect of the ducted air conditioner in each zone it manages and improving the user experience.

[0062] The execution subject of the control method for the duct air conditioner in this application can be a control device with data processing, network communication and program operation functions, such as an air conditioner or other device that regulates the air by controlling itself; it can also be a server, central controller, wired controller or other device that regulates the air by controlling other devices. This embodiment does not specifically limit this.

[0063] The following description uses a control device as the execution subject to illustrate the various embodiments.

[0064] Based on this, this application proposes a control method for a ducted air handling unit according to the first embodiment. Please refer to [link / reference]. Figure 1 The control method for the ducted air handling unit may include steps S10 to S50:

[0065] Step S10: Obtain the energy demand of each zone space, and determine an energy demand from the energy demand of each zone space as the target energy demand of the duct unit.

[0066] It should be noted that the energy demand refers to the cooling / heating demand. When the ducted air conditioner is in cooling mode, the energy demand is the cooling demand; when the ducted air conditioner is in heating mode, the energy demand is the heating demand. The target energy demand is used to determine the required compressor frequency for the ducted air conditioner. When obtaining the energy demand for each zone, the target temperature (i.e., the desired temperature) of each zone can be used to determine the energy demand; alternatively, building energy simulation software can be used to simulate the thermal processes of each zone to determine the energy demand; other methods can also be used to determine the energy demand for each zone. This embodiment does not specifically limit these methods.

[0067] Additionally, it should be noted that when determining an energy demand from the energy demands of each zone as the target energy demand for the ducted air conditioner, any energy demand can be arbitrarily selected; alternatively, a specific energy demand (such as the maximum energy demand, or the energy demand of the zone with the lowest target temperature in cooling mode, or the energy demand of the zone with the highest target temperature in heating mode) can be selected as the target energy demand for the ducted air conditioner. This embodiment does not impose specific limitations on this.

[0068] Step S20: Determine the target compressor frequency of the duct unit based on the target energy demand;

[0069] It should be noted that the target compressor frequency refers to the compressor frequency that the ducted air conditioner's compressor should reach in order to match the actual energy output with the target energy demand. When determining the target compressor frequency of the ducted air conditioner based on the target energy demand, it is necessary to first determine the compressor frequency compensation value of the ducted air conditioner based on the target energy demand; then, the sum of the current compressor frequency and the compressor frequency compensation value is calculated to obtain the target compressor frequency of the ducted air conditioner; where the current compressor frequency refers to the compressor frequency at which the ducted air conditioner is currently operating.

[0070] Furthermore, in one feasible implementation, the step of determining the compressor frequency compensation value of the ducted air conditioner based on the target energy demand may include steps S21 to S22:

[0071] Step S21: Obtain the target opening degree of the air valve in the partition space corresponding to the target energy demand, and use it as the reference opening degree;

[0072] It should be noted that the target opening degree refers to the required opening degree of the air valves in the ducted air conditioning unit to match the actual cooling / heating capacity of the ducted air conditioning unit with the cooling / heating demand. The baseline opening degree is used to determine the compressor frequency compensation value of the ducted air conditioning unit at the current moment.

[0073] Step S22: Based on the preset mapping relationship between opening degree and compressor frequency compensation value, obtain the compressor frequency compensation value corresponding to the reference opening degree, and use it as the compressor frequency compensation value of the duct machine.

[0074] It should be noted that the frequency compensation value is negatively correlated with the opening degree of the damper; that is, the smaller the opening degree, the larger the frequency compensation value, and vice versa. A relationship table can be used to record the mapping relationship between the opening degree and the compressor frequency compensation value. Therefore, step S22 can include: using the reference opening degree as an index, searching in the preset relationship table to obtain the compressor frequency compensation value corresponding to the reference opening degree, which is then used as the compressor frequency compensation value for the ducted air conditioner. Alternatively, a relationship curve can be used to record the mapping relationship between the opening degree and the compressor frequency compensation value. Therefore, step S22 can include: inputting the reference opening degree into the curve function of the preset relationship curve to obtain the compressor frequency compensation value corresponding to the reference opening degree, which is then used as the compressor frequency compensation value for the ducted air conditioner. Other methods can also be used to record the mapping relationship between the opening degree and the compressor frequency compensation value. This embodiment does not specifically limit this method.

[0075] It is understandable that by compensating for the compressor frequency of the ducted air conditioner, the set temperature referenced by the ducted air conditioner can be compensated, thereby making up for the cooling / heating efficiency of the ducted air conditioner when the air volume is low, thus ensuring the cooling / heating effect of the ducted air conditioner in each zone it manages.

[0076] Step S30: Obtain the air outlet parameters of each zone space, and calculate the target air outlet demand of the duct unit based on the air outlet parameters of each zone space.

[0077] It should be noted that the air outlet parameters may include, but are not limited to, the maximum air outlet volume and target opening degree of the air valve. The maximum air outlet volume of the air valve can be calculated using the cross-sectional area of ​​the air valve and the air velocity. The target air outlet demand is used to determine the required operating speed of the fan in the ducted air conditioner.

[0078] In one feasible implementation, the air outlet parameters include the maximum air outlet volume and target opening degree of the air valve, and step S30 may include steps S31 to S33:

[0079] Step S31: Calculate the product of the maximum air volume of each zone's air valve and its target opening degree to obtain the current air volume demand of each zone.

[0080] Step S32: Calculate the sum of the current air supply demand to obtain the initial air supply demand of the duct unit;

[0081] Step S33: Calculate the product of the initial air supply demand and the wind speed coefficient corresponding to the set wind speed of the ducted air conditioner to obtain the target air supply demand of the ducted air conditioner.

[0082] It should be noted that the windshield coefficient is positively correlated with the windshield rating; that is, the higher the windshield rating, the larger the windshield coefficient, and vice versa. For example, suppose there are four windshields: Fl, Fm, Fh, and Ft, where Fl is rated "low," Fm is rated "medium," Fh is rated "high," and Ft is rated "strong." Then, the windshield coefficient for Fl can be set to 40%, for Fm to 60%, for Fh to 80%, and for Ft to 100%.

[0083] Additionally, it should be noted that the implementation process of steps S31 to S33 can be expressed as the following formula 1:

[0084] Asc=F*∑a Formula 1

[0085] Where Asc is the target air supply demand, F is the wind speed coefficient corresponding to the set wind speed of the ducted air conditioner, and a is the current air supply demand of the zoned space.

[0086] Step S40: Determine the target speed of the fan of the ducted air handling unit based on the target air output demand;

[0087] It should be noted that the target speed refers to the speed at which the fan of the ducted air conditioner should reach so that the actual output air volume matches the target air volume demand.

[0088] In one feasible implementation, step S40 may include: obtaining the rotational speed corresponding to the target air demand based on a preset mapping relationship between air demand and rotational speed, and using it as the target rotational speed of the fan of the ducted air conditioner.

[0089] It should be noted that the fan speed is positively correlated with the air demand; that is, the greater the air demand, the higher the fan speed, and vice versa. A relationship table can be used to record the mapping between air demand and speed. Therefore, using the target air demand as an index, the corresponding speed can be found in a preset relationship table and used as the target speed for the ducted air conditioner's fan. Alternatively, a relationship curve can be used to record the mapping between air demand and speed. Therefore, the target air demand can be input into a preset relationship curve function to obtain the corresponding speed, which can also be used as the target speed for the ducted air conditioner's fan. Other methods can also be used to record the mapping between air demand and speed. This embodiment does not specifically limit these methods.

[0090] Step S50: Control the duct air conditioner to run at the target compressor frequency and target speed.

[0091] This embodiment provides a control method for a ducted air conditioner. First, the energy demand of each zone is acquired, and an energy demand is determined from these zone demands as the target energy demand of the ducted air conditioner. Then, based on the target energy demand, the target compressor frequency of the ducted air conditioner is determined; that is, the compressor frequency that the ducted air conditioner's compressor should reach to match the actual energy output with the target energy demand is determined. Next, the air outlet parameters of each zone are acquired, and the target air outlet demand of the ducted air conditioner is calculated based on these parameters. Then, based on the target air outlet demand, the target fan speed of the ducted air conditioner is determined; that is, the fan speed that the ducted air conditioner should reach to match the actual air outlet volume with the target air outlet demand is determined. Finally, by controlling the ducted air conditioner to operate at the target compressor frequency and target speed, the ducted air conditioner can output energy and air volume matching the target energy demand.

[0092] Therefore, when controlling the ducted air conditioner, this implementation utilizes the energy demand (i.e., cooling / heating demand) and airflow demand of the ducted air conditioner in each zone it manages to flexibly adjust the compressor frequency and fan speed. This ensures that the actual cooling / heating output and airflow of the ducted air conditioner match the cooling / heating output and airflow demand, thereby guaranteeing the cooling / heating effect of the ducted air conditioner in each zone it manages and improving the user experience.

[0093] Based on the first embodiment described above, a second embodiment of the control method for the duct air conditioner of this application is proposed. In the second embodiment, step S10 may include steps S11 to S12:

[0094] Step S11: Based on the temperature difference between the current temperature and the target temperature of each partition space, determine the energy demand of each candidate partition space from the energy demand of each partition space.

[0095] It should be noted that the current temperature refers to the temperature of the partition space at the current moment, while the target temperature refers to the temperature that the partition space is expected to reach.

[0096] In one feasible implementation, step S11 may include steps S111 to S112:

[0097] Step S111: If there is a temperature difference outside the preset temperature difference range among the temperature differences, then the energy demand of each partition space whose temperature difference is outside the preset temperature difference range shall be used as the energy demand of each candidate partition space.

[0098] It should be noted that the preset temperature difference range can be a default range, such as (-1℃, 1℃), or it can be flexibly set by the user according to the actual situation. This embodiment does not impose specific limitations on this. If the temperature difference of the partition space is within the preset temperature difference range, it means that the current temperature of the partition space is relatively small compared to the target temperature, and the current temperature of the partition space is basically close to the target temperature. If the temperature difference of the partition space is outside the preset temperature difference range, it means that the current temperature of the partition space is relatively large compared to the target temperature, and the current temperature of the partition space still deviates significantly from the target temperature.

[0099] When the ducted air conditioner is in cooling mode, there are temperature differences outside the preset temperature difference range, which means that there are temperature differences greater than or equal to the upper limit of the preset temperature difference range. When the ducted air conditioner is in heating mode, there are temperature differences outside the preset temperature difference range, which means that there are temperature differences less than or equal to the lower limit of the preset temperature difference range.

[0100] Step S112: If all temperature differences are within the preset temperature difference range, then the energy demand of each partition space is taken as the energy demand of each candidate partition space.

[0101] In this embodiment, if any temperature difference falls outside the preset temperature difference range, it indicates that there are partitions where the current temperature deviates significantly from the target temperature. To ensure that the duct unit can quickly cool / heat these partitions, the energy requirements of these partitions can be selected as candidate partitions. If all temperature differences are within the preset temperature difference range, it means that the current temperature of each partition is close to its target temperature. In this case, the energy requirements of each partition can be used as candidate partitions.

[0102] This embodiment does not specifically limit the implementation of step S11. For example, in other feasible implementations, the energy demand of a preset number of partition spaces can be extracted in descending order based on the temperature difference between the current temperature and the target temperature of each partition space, and used as the energy demand of each candidate partition space. The preset number can be a default value, such as 5, or it can be flexibly set by the user according to the actual situation. This embodiment does not specifically limit this.

[0103] Step S12: Determine an energy demand from the energy demands of each candidate partition space as the target energy demand of the duct unit.

[0104] It should be noted that when determining an energy demand from the energy demands of each candidate partition space as the target energy demand of the ducted air conditioner, any candidate partition space's energy demand can be arbitrarily selected as the target energy demand; alternatively, a specific energy demand (such as the maximum energy demand, or the energy demand of the candidate partition space with the lowest target temperature in cooling mode, or the energy demand of the candidate partition space with the highest target temperature in heating mode) can be selected as the target energy demand of the ducted air conditioner. This embodiment does not impose specific limitations on this.

[0105] In this embodiment, when determining the target energy requirement of the ducted air conditioner, the energy requirement of each zone is first screened based on the temperature difference between the current temperature and the target temperature. Zones with larger temperature deviations from the target temperature are selected as candidate energy requirements. Then, an energy requirement is determined from these candidate requirements as the target energy requirement for the ducted air conditioner. Therefore, the target compressor frequency of the ducted air conditioner, determined using this target energy requirement, not only ensures the cooling / heating performance of the ducted air conditioner in the zones it manages but also improves its cooling / heating efficiency in zones with larger temperature deviations from the target temperature.

[0106] Based on the first and / or second embodiments described above, a third embodiment of the control method for the ducted air handling unit of this application is proposed. In the third embodiment, the process for determining the target opening degree of the air valves in each zone space may include step S01:

[0107] Step S01: Determine the target opening degree of the air valves in each zone based on the energy demand of each zone and the operating power of the duct unit.

[0108] The energy demand of a zone can indirectly represent the temperature difference ΔT between the current temperature and the target temperature of that zone. Generally, when the ducted air conditioner is in cooling mode, the greater the energy demand of a zone, the greater the temperature difference ΔT, and the greater the target opening degree of the damper in that zone should be. For example, please refer to... Figure 2 Taking a ducted air conditioner in cooling mode, with temperature differences ΔT of 4.0℃ in zone A, 1.5℃ in zone B, 1.0℃ in zone C, 0.5℃ in zone D, and 0℃ in zone E as an example, the target opening degree K of the damper in zone A can be set to 100%, K of the damper in zone B to 80%, K of the damper in zone C to 60%, K of the damper in zone D to 40%, and K of the damper in zone E to 20%.

[0109] When the ducted air conditioner is in heating mode, the greater the energy demand of each zone, the smaller the temperature difference ΔT in that zone, and the larger the target opening of the damper in that zone should be. For example, please refer to... Figure 3Taking a ducted air conditioner in heating mode, with temperature differences ΔT of -4.5℃ in zone A, -3℃ in zone B, -1.5℃ in zone C, and 0℃ in zone D as an example, the target opening degree K of the damper in zone A can be set to 80%, the target opening degree K of the damper in zone B to 60%, the target opening degree K of the damper in zone C to 40%, and the target opening degree K of the damper in zone D to 20%.

[0110] It is understandable that the operating power of the ducted air conditioner represents its current operating capacity. Therefore, this embodiment, by utilizing the energy demand of each zone and the operating power of the ducted air conditioner, can determine the required opening degree of the air valves in each zone to match the actual cooling / heating capacity of the zone with the cooling / heating demand, given the current operating capacity of the ducted air conditioner.

[0111] In one feasible implementation, step S01 may include steps S011 to S013:

[0112] Step S011: Determine the target power allocation ratio of the air valves in each zone based on the energy demand of each zone.

[0113] It should be noted that the target power allocation ratio refers to the proportion of operating power that the ducted air handling unit needs to allocate to the dampers in each zone. The greater the energy demand in each zone, the greater the target power allocation ratio for the dampers in that zone.

[0114] In one feasible implementation, step S011 may include: arranging each partition space according to the energy demand from largest to smallest, and after arranging, matching each preset power allocation ratio to each partition space one by one from largest to smallest, as the target power allocation ratio of each partition space's air valve.

[0115] This embodiment does not specifically limit the implementation of step S011. For example, in other embodiments, the target power allocation ratio of each zone's air valve can be determined by utilizing a preset mapping relationship between energy demand and power allocation ratio.

[0116] Step S012: Calculate the product of the target power allocation ratio of each zone's air valve and the operating power of the duct unit to obtain the target operating power of each zone's air valve.

[0117] It should be noted that the target operating power refers to the specific operating power that the ducted air handling unit needs to allocate to the air valves in the partition space.

[0118] Step S013: Determine the target opening degree of each zone's space valve based on the target operating power of each zone's space valve.

[0119] It should be noted that the opening degree of the damper is positively correlated with its operating power; that is, the higher the operating power of the damper, the larger its opening degree, and vice versa. When determining the target opening degree of each zone's damper based on its target operating power, for any given zone's damper, the opening degree corresponding to its target operating power can be obtained based on a preset mapping relationship between operating power and opening degree, and used as the target opening degree of the zone's damper. Alternatively, the target opening degree of each zone's damper can be directly calculated using its target operating power. This embodiment does not specifically limit the implementation method of step S013.

[0120] This can be achieved by using a relational table to record the mapping between operating power and opening degree. Thus, the opening degree corresponding to the target operating power of the partition space damper can be found in the preset relational table using the target operating power as an index, and this value is taken as the target opening degree of the partition space damper. Alternatively, a relational curve can be used to record the mapping between operating power and opening degree. Thus, the target operating power of the partition space damper can be input into the curve function of the preset relational curve to obtain the opening degree corresponding to the target operating power of the partition space damper, which is taken as the target opening degree of the partition space damper. Other methods can also be used to record the mapping between operating power and opening degree. This embodiment does not specifically limit these methods.

[0121] In this embodiment, by utilizing the energy demand of each zone and the operating power of the ducted air conditioner, the air valves of each zone can be determined. Given the current operating capacity of the ducted air conditioner, the operating power allocated to each zone to ensure that its actual cooling / heating capacity matches its cooling / heating demand is determined; this is the target operating power for each zone. Therefore, by utilizing the determined target operating power for each zone, the target opening degree of the air valves in each zone can be accurately determined.

[0122] For example, to help understand the overall implementation flow of the control method for the ducted air conditioner obtained by combining the above embodiments, please refer to... Figure 4 , specifically:

[0123] First, obtain the energy demand of each zone space, and based on the temperature difference between the current temperature and the target temperature of each zone space, determine the energy demand of each candidate zone space from the energy demand of each zone space; then, take the maximum energy demand of each candidate zone space as the target energy demand of the target duct unit; then, determine the target compressor frequency of the duct unit based on the target energy demand.

[0124] After determining the target compressor frequency of the ducted air conditioner, the target opening degree of the air valves in each zone can be determined based on the energy demand of each zone and the operating power of the ducted air conditioner. Then, based on the air damper coefficient corresponding to the set air damper of the ducted air conditioner, the maximum air volume of each zone's air valve, and their respective target opening degree, the target air output demand of the ducted air conditioner can be calculated. Next, based on the target air output demand, the target fan speed of the ducted air conditioner can be determined. After that, the ducted air conditioner can be controlled to operate at the target compressor frequency and target speed.

[0125] It should be noted that this example is only for the purpose of assisting in understanding this application and does not constitute a limitation on the control method of the duct machine of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0126] This application also provides a control device for a ducted air conditioner. Please refer to... Figure 5 The control device for the ducted air conditioner may include:

[0127] The energy demand determination module 10 is used to obtain the energy demand of each zone space and determine an energy demand from the energy demand of each zone space as the target energy demand of the duct machine.

[0128] The compressor frequency determination module 20 is used to determine the target compressor frequency of the duct air conditioner based on the target energy demand.

[0129] The air demand determination module 30 is used to obtain the air output parameters of each zone space and calculate the target air output demand of the duct air conditioner based on the air output parameters of each zone space.

[0130] The fan speed determination module 40 is used to determine the target fan speed of the duct air conditioner based on the target air output demand.

[0131] The control module 50 is used to control the duct air conditioner to operate at the target compressor frequency and target speed.

[0132] In one embodiment, the air outlet parameters include the maximum air outlet volume and target opening degree of the air valve; the air outlet demand determination module 30 is further configured to:

[0133] Calculate the product of the maximum airflow of each zone's air valve and its target opening to obtain the current airflow demand of each zone.

[0134] Calculate the sum of the current air supply demand to obtain the initial air supply demand of the ducted air conditioner;

[0135] The target air output demand of the ducted air conditioner is obtained by multiplying the initial air output demand by the air damper coefficient corresponding to the set air damper of the ducted air conditioner.

[0136] In one embodiment, the control device for the duct air conditioner further includes:

[0137] Based on the energy demand of each zone and the operating power of the duct unit, determine the target opening degree of the air valves in each zone.

[0138] In one embodiment, the control device for the duct air conditioner further includes:

[0139] Based on the energy demand of each zone, determine the target power allocation ratio of the air valves in each zone;

[0140] The target operating power of each zone's air valve is obtained by multiplying the target power allocation ratio of the air valve in each zone with the operating power of the duct unit.

[0141] The target opening degree of each zone's air valve is determined based on its target operating power.

[0142] In one embodiment, the energy demand determination module 10 is further configured to:

[0143] Obtain the target temperature for each partition space;

[0144] The energy requirements for each zone are determined based on the target temperature of each zone.

[0145] In one embodiment, the energy demand determination module 10 is further configured to:

[0146] Based on the temperature difference between the current temperature and the target temperature of each partition space, the energy demand of each candidate partition space is determined from the energy demand of each partition space.

[0147] One energy demand is determined from the energy demands of each candidate partition space and used as the target energy demand for the duct unit.

[0148] In one embodiment, the energy demand determination module 10 is further configured to:

[0149] If there is a temperature difference outside the preset temperature difference range among the temperature differences, then the energy demand of each partition space whose temperature difference is outside the preset temperature difference range shall be used as the energy demand of each candidate partition space.

[0150] If all temperature differences are within the preset temperature difference range, then the energy demand of each partition space will be used as the energy demand of each candidate partition space.

[0151] In one embodiment, the compressor frequency determination module 20 is further configured to:

[0152] Determine the compressor frequency compensation value of the duct air conditioner based on the target energy demand;

[0153] The target compressor frequency of the ducted air conditioner is obtained by calculating the sum of the current compressor frequency and the compressor frequency compensation value.

[0154] In one embodiment, the compressor frequency determination module 20 is further configured to:

[0155] Obtain the target opening degree of the damper in the partition space corresponding to the target energy demand, and use it as the reference opening degree;

[0156] Based on the preset mapping relationship between opening degree and compressor frequency compensation value, the compressor frequency compensation value corresponding to the reference opening degree is obtained and used as the compressor frequency compensation value of the duct machine.

[0157] In one embodiment, the fan speed determination module 40 is further configured to:

[0158] Based on the preset mapping relationship between air demand and speed, the speed corresponding to the target air demand is obtained and used as the target speed of the fan in the ducted air conditioner.

[0159] The control device for a ducted air conditioner provided in this application adopts the control method for ducted air conditioners in the above embodiments, which can ensure the cooling / heating effect of the ducted air conditioner in each zone it manages, thereby improving the user experience of the ducted air conditioner. Compared with the prior art, the beneficial effects of the control device for a ducted air conditioner provided in this application are the same as the beneficial effects of the control method for a ducted air conditioner provided in the above embodiments, and other technical features in the control device for the ducted air conditioner are the same as the features disclosed in the methods of the above embodiments, and will not be repeated here.

[0160] This application also provides a control device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the control method of the duct machine in the above embodiments.

[0161] The following is for reference. Figure 6 It shows a schematic diagram of the structure of a control device suitable for implementing the embodiments of this application. Figure 6 The control device shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0162] like Figure 6As shown, the control device may include a processing unit 101 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in read-only memory (ROM) 102 or a program loaded from storage device 103 into random access memory (RAM) 104. RAM 104 also stores various programs and data required for the operation of the control device. The processing unit 101, ROM 102, and RAM 104 are interconnected via bus 105. Input / output (I / O) interface 106 is also connected to the bus. Typically, the following systems can be connected to I / O interface 106: input devices 107 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 108 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 103 including, for example, magnetic tape, hard disks, etc.; and communication devices 109. Communication device 109 allows the control device to communicate wirelessly or wiredly with other devices to exchange data. Although the diagram shows control equipment with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented alternatively.

[0163] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 103, or installed from ROM 102. When the computer program is executed by processing device 101, it performs the functions defined in the methods of the embodiments of this application.

[0164] The control device provided in this application embodiment, employing the control method for ducted air conditioners described in the above embodiments, can ensure the cooling / heating effect of the ducted air conditioner in each zone it manages, thereby improving the user experience. Compared with the prior art, the beneficial effects of the control device provided in this application embodiment are the same as those of the control method for ducted air conditioners provided in the above embodiments, and other technical features in this control device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0165] It should be understood that various parts of the embodiments of this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0166] The above description is merely a specific implementation of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the above claims.

[0167] This application also provides a computer-readable storage medium storing a computer program that can run on a processor. The computer program is used to execute the control method of the duct machine in the above embodiments.

[0168] The computer-readable storage medium provided in this application embodiment may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0169] The aforementioned computer-readable storage medium may be included in the control device; or it may exist independently and not assembled into the control device.

[0170] The aforementioned computer-readable storage medium carries one or more programs. When the aforementioned one or more programs are executed by the control device, the control device causes the control device to: acquire the energy demand of each partition space, and determine an energy demand from the energy demand of each partition space as the target energy demand of the ducted air conditioner; determine the target compressor frequency of the ducted air conditioner based on the target energy demand; acquire the air outlet parameters of each partition space, and calculate the target air outlet demand of the ducted air conditioner based on the air outlet parameters of each partition space; determine the target fan speed of the ducted air conditioner based on the target air outlet demand; and control the ducted air conditioner to operate at the target compressor frequency and the target speed.

[0171] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0172] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0173] The modules involved in the embodiments of this application can be implemented in software or hardware. The name of the module does not, in some cases, constitute a limitation on the unit itself.

[0174] The computer-readable storage medium provided in this application embodiment stores computer-readable program instructions for executing the control method of the ducted air conditioner described above. This ensures the cooling / heating effect of the ducted air conditioner in each zone it manages, thereby improving the user experience. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application embodiment are the same as the beneficial effects of the control method of the ducted air conditioner provided in the above embodiments, and will not be repeated here.

[0175] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the control method for the duct machine as described above.

[0176] The computer program product provided in this application embodiment can ensure the cooling / heating effect of the ducted air conditioner in each zone it manages, thereby improving the user experience. Compared with the prior art, the beneficial effects of the computer program product provided in this application embodiment are the same as the beneficial effects of the ducted air conditioner control method provided in the above embodiments, and will not be repeated here.

[0177] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent scope of this application.

Claims

1. A control method for a ducted air conditioner, characterized in that, include: The energy demand of each partition space is obtained, and an energy demand is determined from the energy demand of each partition space as the target energy demand of the duct machine. The target compressor frequency of the duct unit is determined based on the target energy demand. Obtain the air outlet parameters of each zone space, and calculate the target air outlet demand of the duct air conditioner based on the air outlet parameters of each zone space; Based on the target air output demand, determine the target speed of the fan in the duct air handling unit; The ducted air conditioner is controlled to operate at the target compressor frequency and target speed.

2. The control method for the ducted air conditioner as described in claim 1, characterized in that, The air outlet parameters include the maximum air outlet volume and target opening degree of the air valve; The step of calculating the target air output demand of the ducted air unit based on the air output parameters of each zone includes: Calculate the product of the maximum airflow of each zone's air valve and its target opening to obtain the current airflow demand of each zone. Calculate the sum of the current air supply demand values ​​to obtain the initial air supply demand of the duct unit; The target air output demand of the ducted air conditioner is obtained by multiplying the initial air output demand by the wind speed coefficient corresponding to the set wind speed of the ducted air conditioner.

3. The control method for the ducted air conditioner as described in claim 2, characterized in that, The method further includes: Based on the energy demand of each zone and the operating power of the duct unit, the target opening degree of the air valve in each zone is determined.

4. The control method for the duct air conditioner as described in claim 3, characterized in that, The step of determining the target opening degree of the air valves in each zone based on the energy demand of each zone and the operating power of the duct unit includes: Based on the energy demand of each zone, determine the target power allocation ratio of the air valves in each zone; The target operating power of each zone's air valve is obtained by multiplying the target power allocation ratio of the air valve in each zone with the operating power of the air duct machine. The target opening degree of each zone's air valve is determined based on its target operating power.

5. The control method for the duct machine as described in any one of claims 1 to 4, characterized in that, The step of obtaining the energy requirements of each partition space includes: Obtain the target temperature for each partition space; The energy requirements for each zone are determined based on the target temperature of each zone.

6. The control method for the duct machine as described in any one of claims 1 to 4, characterized in that, The step of determining an energy demand from the energy demands of each zone space as the target energy demand of the duct unit includes: Based on the temperature difference between the current temperature and the target temperature of each partition space, the energy demand of each candidate partition space is determined from the energy demand of each partition space. An energy demand is determined from the energy demands of each candidate partition space and used as the target energy demand of the duct machine.

7. The control method for a ducted air conditioner as described in claim 6, characterized in that, The step of determining the energy demand of each candidate partition space from the energy demand of each partition space based on the temperature difference between the current temperature and the target temperature of each partition space includes: If any of the temperature differences is outside the preset temperature difference range, then the energy demand of each partition space whose temperature difference is outside the preset temperature difference range shall be taken as the energy demand of each candidate partition space. If all the temperature differences are within the preset temperature difference range, then the energy demand of each partition space will be used as the energy demand of each candidate partition space.

8. The control method for a ducted air conditioner as described in any one of claims 1 to 4, characterized in that, The step of determining the target compressor frequency of the duct unit based on the target energy demand includes: Based on the target energy demand, determine the compressor frequency compensation value of the duct air conditioner; The target compressor frequency of the ducted air conditioner is obtained by calculating the sum of the current compressor frequency and the compressor frequency compensation value.

9. The control method for a ducted air conditioner as described in claim 8, characterized in that, The step of determining the compressor frequency compensation value of the duct unit based on the target energy demand includes: Obtain the target opening degree of the air valve in the partition space corresponding to the target energy demand, and use it as the reference opening degree; Based on the preset mapping relationship between opening degree and compressor frequency compensation value, the compressor frequency compensation value corresponding to the reference opening degree is obtained and used as the compressor frequency compensation value of the duct machine.

10. The control method for a ducted air conditioner as described in any one of claims 1 to 4, characterized in that, The step of determining the target fan speed of the ducted air handling unit based on the target air output demand includes: Based on the preset mapping relationship between air demand and rotation speed, the rotation speed corresponding to the target air demand is obtained and used as the target rotation speed of the fan of the duct machine.

11. A control device, characterized in that, The control device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method for the duct machine as described in any one of claims 1 to 10.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the control method for the duct machine as described in any one of claims 1 to 10.

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