Control method, control device, system and storage medium of central fume machine system

Abstract

This invention discloses a control method, control device, central smoke hood system, and computer-readable storage medium for a central smoke hood system. The control method includes: acquiring the total required airflow of all terminal smoke hoods in an active state; determining a corrected airflow for each terminal smoke hood, provided the total required airflow is not greater than the minimum airflow limit of the common smoke duct, wherein the corrected airflow is not less than the required airflow of each terminal smoke hood; and sending the corrected airflow to the terminal smoke hoods so that the terminal smoke hoods operate according to the corrected airflow. This control method, by acquiring the total required airflow of all terminal smoke hoods in an active state and determining the corrected airflow for each terminal smoke hood, provided the total required airflow is not greater than the minimum exhaust limit of the common smoke duct, ensures that the corrected airflow is not less than the required airflow, thereby enabling the operation of each terminal smoke hood to fully utilize the exhaust capacity of the common smoke duct and improving the utilization rate of the common smoke duct's exhaust capacity.

Description

Technical Field

[0001] This invention relates to the field of smoke exhaust equipment technology, and in particular to a control method, control device, central smoke exhaust system, and computer-readable storage medium for a central smoke exhaust system. Background Technology

[0002] Currently, some buildings have shared exhaust ducts. When the range hoods installed on each floor are running, the fumes are discharged into the shared exhaust duct through the exhaust pipes on each floor, and the fumes are eventually discharged outside the building through the shared exhaust duct. When there are few users using the range hoods at the same time, the exhaust capacity of the shared exhaust duct is underutilized. Summary of the Invention

[0003] The present invention provides a control method, control device, central smoke machine system, and computer-readable storage medium for a central smoke machine system.

[0004] A control method for a central smoke machine system according to an embodiment of the present invention includes:

[0005] Obtain the total required air volume for all active range hoods;

[0006] If the total required air volume is not greater than the minimum air volume limit of the common flue, the corrected air volume of each terminal flue is determined, and the corrected air volume is not less than the required air volume of each terminal flue.

[0007] The corrected airflow is sent to the terminal range hood so that the terminal range hood operates according to the corrected airflow.

[0008] The above control method obtains the total required air volume of all terminal smoke hoods in the on state. Under the condition that the total required air volume is not greater than the minimum exhaust limit of the common smoke duct, the corrected air volume of each terminal smoke hood is determined. The corrected air volume is not less than the required air volume, so that the operation of each terminal smoke hood can make full use of the exhaust capacity of the common smoke duct and improve the utilization rate of the exhaust capacity of the common smoke duct.

[0009] In some implementations, the corrected airflow satisfies the following condition:

[0010] Q i =F×Q i , where Q i ' represents the corrected air volume, Q i Let F represent the required air volume, f represent the correction function, and F = f(Q) i ).

[0011] In some implementations, determining the corrected airflow for each terminal exhaust fan, provided the total required airflow is not greater than the minimum airflow limit of the common flue, includes:

[0012] The corrected air volume is determined based on the ratio of the minimum air volume limit of the public flue to the total required air volume and the required air volume.

[0013] In some implementations, the sum of the corrected air volumes satisfies the following condition:

[0014] ∑(F×Q i )=Q min , where ∑(F×Q i Q represents the sum of the corrected air volumes. min This indicates the minimum airflow limit for the public flue.

[0015] In some implementations, the sum of the corrected air volumes satisfies the following condition:

[0016] ∑(F×Q i )<1.2Q min , where ∑(F×Q i Q represents the sum of the corrected air volumes. min This indicates the minimum airflow limit for the public flue.

[0017] In some embodiments, the control method includes:

[0018] The noise level of the terminal range hood is determined based on the corrected air volume and the back pressure of the terminal range hood.

[0019] If the noise of the terminal exhaust fan is not less than the preset noise, the corrected air volume is adjusted so that the noise of the terminal exhaust fan is less than the preset noise, and the adjusted corrected air volume is sent to the terminal exhaust fan.

[0020] In some embodiments, the control method includes:

[0021] After adjusting the corrected airflow of the terminal exhaust fan whose noise level is not less than the preset noise level, the corrected airflow of the other terminal exhaust fans is adjusted, and the adjusted corrected airflow is sent to the other terminal exhaust fans to increase their airflow.

[0022] In some embodiments, the control method includes:

[0023] Obtain the installation location information of the central smoke machine system;

[0024] If the installation location of the central smoke hood system is a preset installation location, and if the corrected air volume is not less than the preset air volume threshold, the corrected air volume is adjusted so that the corrected air volume is less than the preset air volume threshold, and the adjusted corrected air volume is sent to the terminal smoke hood; wherein, the preset air volume threshold is related to the preset installation location.

[0025] In some embodiments, the control method includes:

[0026] After adjusting the corrected airflow to a value not less than the preset airflow threshold, the corrected airflow of other terminal range hoods is adjusted, and the adjusted corrected airflow is sent to the other terminal range hoods to increase their airflow.

[0027] A control device for a central tobacco machine system according to an embodiment of the present invention includes a processor and a memory. The memory stores a computer program, which, when executed by the processor, implements the steps of the control method of any of the above embodiments.

[0028] A central smoke machine system according to an embodiment of the present invention includes the control device described in the above embodiment.

[0029] The present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the control method of any of the above embodiments.

[0030] The aforementioned control device, central smoke hood system, and computer-readable storage medium acquire the total required air volume of all terminal smoke hoods in the on state. Under the condition that the total required air volume is not greater than the minimum exhaust limit of the common smoke duct, the corrected air volume of each terminal smoke hood is determined. The corrected air volume is not less than the required air volume, so that the operation of each terminal smoke hood can make full use of the exhaust capacity of the common smoke duct and improve the utilization rate of the exhaust capacity of the common smoke duct.

[0031] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0033] Figure 1 This is a flowchart illustrating the control method according to an embodiment of the present invention;

[0034] Figure 2 This is an installation diagram of the central smoke machine system according to an embodiment of the present invention;

[0035] Figures 3 to 4 This is a flowchart illustrating the control method according to an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the modules of the central smoke machine system according to an embodiment of the present invention. Detailed Implementation

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] This disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0042] Please refer to Figure 1 and Figure 2 A control method for a central smoke machine system 100 according to an embodiment of the present invention includes:

[0043] Step 101: Obtain the total required air volume for all terminal range hoods that are currently in operation;

[0044] Step 103: Under the condition that the total required air volume is not greater than the minimum air volume limit of the common flue, determine the corrected air volume of each terminal flue, and the corrected air volume is not less than the required air volume of each terminal flue.

[0045] Step 105: Send the corrected airflow to the terminal range hood so that the terminal range hood operates according to the corrected airflow.

[0046] The above control method obtains the total required air volume of all terminal smoke hoods that are in the open state. Under the condition that the total required air volume is not greater than the minimum exhaust limit of the common smoke duct, the corrected air volume of each terminal smoke hood is determined. The corrected air volume is not less than the required air volume, so that the operation of each terminal smoke hood can make full use of the exhaust capacity of the common smoke duct and improve the utilization rate of the exhaust capacity of the common smoke duct.

[0047] Specifically, please refer to Figure 2 The central smoke hood system 100 of this invention can be applied to buildings with a common smoke duct 14. The building may include multiple floors, and each floor may be equipped with one or more terminal smoke hoods 12. This invention is described using the example of one terminal smoke hood 12 installed on each floor; however, the invention is not limited thereto.

[0048] The terminal range hood 12 is installed in the user's kitchen or where cooking fumes are generated. The terminal range hood 12 can be a range hood or an integrated kitchen appliance; no specific limitation is made here. Each terminal range hood 12 can be connected to the common flue 14 via the terminal flue 16.

[0049] In one embodiment, the terminal range hood 12 may have a smoke-following module, which is a module that can automatically adjust the speed of the terminal range hood 12 according to the amount of smoke detected by the smoke sensor. Each speed corresponds to a certain airflow. It can be understood that the terminal range hood 12 can have an unlimited number of speeds, that is, the speed of the terminal range hood 12 is steplessly adjustable, or the terminal range hood 12 can have a finite number of speeds.

[0050] In one implementation, the terminal smoke hood 12 may also be without a smoke sensor module, and the speed setting of the terminal smoke hood 12 can be determined by the user.

[0051] The central smoke control system 100 includes multiple terminal smoke control units 12 installed on each floor. The central smoke control system 100 may include a central controller 18 (or main controller). The central controller 18 can communicate with all terminal smoke control units 12 via wired or wireless communication. The air volume requirement of each terminal smoke control unit 12 in the on state can be reported to the central controller 18. The central controller 18 calculates the total air volume requirement based on the reported air volume requirements of all on-state terminal smoke control units. The total air volume requirement can be the sum of all reported air volume requirements.

[0052] The minimum airflow limit of the common flue 14 can be preset. For example, after the common flue 14 is constructed, the minimum airflow limit can be determined through simulation or testing based on the size and joint layout of the common flue 14. The minimum airflow limit of the common flue 14 can be pre-stored in the central controller 18, or in the terminal flue 12, or the minimum airflow limit of the common flue 14 can be pre-stored in the cloud. The central controller 18 or the terminal flue 12 can obtain the minimum airflow limit of the common flue 14 from the cloud via the network, and the minimum airflow limit of the common flue 14 obtained by the terminal flue 12 can be transmitted to the central controller 18.

[0053] When the total demand air volume is not greater than the minimum air volume limit of the public flue 14, that is, when the utilization rate of the public flue 14 is low and the total demand air volume has not exceeded the minimum air volume limit of the public flue 14, the air volume of the terminal smoke hood 12 that is in the open state can be appropriately increased to improve the utilization rate of the public flue 14 and also improve the smoke extraction effect of the terminal smoke hood 12.

[0054] After receiving the corrected airflow, the terminal smoke hood 12 adjusts its operating state to adapt to the corrected airflow. In one embodiment, the terminal smoke hood 12 may include an exhaust fan, and the corrected airflow can be achieved by adjusting the speed of the exhaust fan. The speed of the exhaust fan can be adjusted by adjusting electrical parameters such as current, voltage, and power.

[0055] It is understandable that, provided that the total required air volume is not less than the minimum air volume limit of the common flue 14, the required air volume of the terminal flue 12 does not need to be corrected, and the terminal flue 12 can operate according to the required air volume.

[0056] In some implementations, the corrected airflow meets the following conditions:

[0057] Q i =F×Q i , where Q i 'Indicates corrected airflow, Q' i F represents the required air volume, f represents the correction function, and F = f(Q) i ).

[0058] In this way, the corrected air volume can be determined specifically.

[0059] Specifically, F = f(Q) i This indicates that the correction function is a function of the required air volume, Q. i =F×Q i =f(Q) i )×Q i In one implementation, Q i Q can be negatively correlated with F, i.e., Q i The larger the value of Q, the smaller the value of F, and the less the airflow is increased. In one implementation, Q... i Q can be positively correlated with F, i.e., Q i The larger the value, the larger the F value, and the greater the increase in air volume.

[0060] In some implementations, step 103 includes:

[0061] The corrected air volume is determined based on the ratio of the minimum air volume limit of the public flue 14 to the total required air volume and the required air volume.

[0062] In this way, the corrected air volume can be determined relatively simply and efficiently.

[0063] Specifically, in one embodiment, when the total required air volume is not greater than the minimum air volume limit of the common flue 14, the ratio of the minimum air volume limit of the common flue 14 to the total required air volume is... ∑Q i Q represents the total required air volume. min This indicates the minimum airflow limit for public flue 14, and the corrected airflow.

[0064] In some implementations, the sum of the corrected air volumes satisfies the following condition:

[0065] ∑(F×Q i )=Q min , where ∑(F×Q iQ represents the total corrected air volume. min This indicates the minimum airflow limit for the public flue 14.

[0066] In this way, it can be ensured that the terminal range hood 12, which operates with a corrected air volume, will not excessively occupy the exhaust capacity of the public flue 14.

[0067] Specifically, when the total required air volume does not exceed the minimum air volume limit of the common flue 14, the terminal flue hoods 12 in the on state operate with a corrected air volume, which is not less than the required air volume. This ensures that the sum of the corrected air volumes of all terminal flue hoods 12 in the on state is not less than the total required air volume. This is achieved by setting ∑(F×Q) i )=Q min The conditions ensure that the terminal smoke hood 12 operating with the corrected air volume will not excessively occupy the exhaust capacity of the common flue 14, thus avoiding loss of air volume for the newly started terminal smoke hood 12.

[0068] In some implementations, the sum of the corrected air volumes satisfies the following condition:

[0069] ∑(F×Q i )<1.2Q min , where ∑(F×Q i Q represents the total corrected air volume. min This indicates the minimum airflow limit for the public flue 14. This further improves the smoke extraction effect of the terminal smoke hood 12, which operates with corrected airflow.

[0070] Specifically, when the total required air volume does not exceed the minimum air volume limit of the common flue 14, the terminal flue hoods 12 in the on state operate with a corrected air volume, which is not less than the required air volume. This ensures that the sum of the corrected air volumes of all terminal flue hoods 12 in the on state is not less than the total required air volume. This is achieved by setting ∑(F×Q) i )<1.2Q min Under certain conditions, although the terminal range hood 12 operating with corrected airflow will cause some additional occupation of the exhaust capacity of the public flue 14, the overall occupation ratio is not high, and the smoke extraction effect of the terminal range hood 12 in the open state can be further improved.

[0071] In some implementations, please refer to Figure 3 The control methods include:

[0072] Step 107: Determine the noise of the terminal range hood 12 based on the corrected air volume and the back pressure of the terminal range hood 12;

[0073] Step 109: If the noise of the terminal range hood 12 is not less than the preset noise, adjust the corrected air volume so that the noise of the terminal range hood 12 is less than the preset noise, and send the adjusted corrected air volume to the terminal range hood 12.

[0074] This can prevent excessive noise from bothering users.

[0075] Specifically, by adjusting the corrected air volume to make the noise of the terminal range hood lower than the preset noise, it is possible to avoid excessive noise caused by excessive corrected air volume, which would bother users.

[0076] The back pressure of the terminal range hood 12 refers to the pressure value at the check valve connected to the terminal range hood 12, which can be detected by a pressure sensor. The relationship between airflow, back pressure, and noise can be pre-calibrated and stored. The operating noise of the terminal range hood 12 is determined based on the obtained corrected airflow and back pressure.

[0077] In one implementation, the upper limit of the correction function f can be set so that the noise (sound pressure level) corresponding to the upper limit is less than a preset noise level. In one example, the preset noise level can be 69 dB(A), and the upper limit of the correction function f can be set so that the noise (sound pressure level) corresponding to the upper limit is less than 69 dB(A). It is understood that the present invention is not limited thereto.

[0078] In one implementation, the relationship between airflow and noise can be pre-calibrated and stored, for example, through simulation or testing.

[0079] In some implementations, the control method includes:

[0080] After adjusting the corrected airflow of the terminal smoke hood 12 to a level where the noise level is not less than the preset noise level, the corrected airflow of the other terminal smoke hoods 12 is adjusted, and the adjusted corrected airflow is sent to the other terminal smoke hoods 12 to increase their airflow. In this way, the smoke extraction effect of the other terminal smoke hoods 12 can be further improved.

[0081] Specifically, the terminal smoke hood 12 with noise levels not less than a preset noise level is designated as this terminal smoke hood 12. When this terminal smoke hood 12 operates with a corrected airflow, its noise level is not less than the preset noise level. Therefore, the corrected airflow of this terminal smoke hood 12 is adjusted to control its operation. Since noise levels are generally positively correlated with airflow, the noise level will decrease when this terminal smoke hood 12 operates with the adjusted corrected airflow. Therefore, the adjusted corrected airflow of this terminal smoke hood 12 is less than the original corrected airflow. This results in a smaller total corrected airflow after the airflow adjustment of this terminal smoke hood 12. Therefore, the reduced airflow due to the corrected airflow of this terminal smoke hood 12 can be allocated to other terminal smoke hoods 12 to increase their airflow, thereby further improving their smoke extraction effect.

[0082] As an example, all terminal exhaust fans 12 in the active state require an air volume of 400 cubic meters per hour, and the total required air volume does not exceed the minimum air volume limit of the common exhaust duct 14. After correction, the corrected air volume is 600 cubic meters per hour. However, the noise level of this terminal exhaust fan 12 operating at the corrected air volume of 600 cubic meters per hour is not less than the preset noise level. Therefore, the corrected air volume of this terminal exhaust fan 12 is adjusted to 500 cubic meters per hour, and the extra 100 cubic meters per hour is allocated to other terminal exhaust fans 12. The allocation principle can be random allocation, allocation according to a certain proportion or weight, or allocation based on the floor level, with lower-floor terminal exhaust fans 12 receiving more and higher-floor terminal exhaust fans 12 receiving less. No specific limitation is made here.

[0083] In some implementations, please refer to Figure 4 The control methods include:

[0084] Step 111: Obtain the installation location information of the central smoke hood system 100;

[0085] Step 113: If the installation location of the central smoke hood system 100 is a preset installation location, and if the corrected air volume is not less than the preset air volume threshold, adjust the corrected air volume so that the corrected air volume is less than the preset air volume threshold, and send the adjusted corrected air volume to the terminal smoke hood 12; wherein, the preset air volume threshold is related to the preset installation location.

[0086] This can prevent excessive airflow from causing indoor air conditioning or heating to be expelled.

[0087] Specifically, the preset installation location can be an extremely hot or extremely cold area. The temperature at the preset installation location fluctuates significantly with the seasons. For example, in higher latitude regions, winters are colder, and indoor heating is usually used to raise the indoor temperature. In lower latitude regions, summers are hotter, and indoor air conditioning is usually used to lower the indoor temperature. If the adjusted airflow is too large, it will draw away the heated or cooled air from the room, affecting the indoor temperature. The preset airflow threshold is related to the preset installation location and is set specifically according to the actual installation location. Different installation locations may have different preset airflow thresholds.

[0088] In one implementation, an upper limit value can be set for the aforementioned correction function f, ensuring that the actual air volume used corresponds to this upper limit value is less than a preset air volume threshold. In one example, the preset air volume threshold could be 900 cubic meters per hour. It is understood that the present invention is not limited thereto.

[0089] In some implementations, the control method includes:

[0090] After adjusting the corrected air volume to a value not less than the preset air volume threshold, the corrected air volume of other terminal range hoods 12 is adjusted, and the adjusted corrected air volume is sent to other terminal range hoods 12 to increase the air volume of other terminal range hoods 12.

[0091] In this way, the smoke extraction effect of other terminal smoke machines 12 can be further improved.

[0092] Specifically, the terminal smoke hood 12 with a corrected airflow not less than a preset airflow threshold is designated as this terminal smoke hood 12. When this terminal smoke hood 12 operates with the corrected airflow, the corrected airflow is not less than the preset airflow threshold. Therefore, the corrected airflow of this terminal smoke hood 12 is adjusted to control its operation. Since the adjusted airflow of this terminal smoke hood 12 is reduced, the total corrected airflow becomes smaller after the airflow adjustment of this terminal smoke hood 12. Therefore, the reduced airflow due to the corrected airflow of this terminal smoke hood 12 can be allocated to other terminal smoke hoods 12 to increase their airflow, thereby further improving their smoke extraction effect.

[0093] As an example, the required airflow of the local exhaust fan 12 when it is in the active state is 850 cubic meters per hour, and the total required airflow does not exceed the minimum airflow limit of the common exhaust duct 14. After correction, the corrected airflow of the local exhaust fan 12 is 950 cubic meters per hour, which is greater than the preset airflow threshold of 900 cubic meters per hour. Therefore, the corrected airflow of the local exhaust fan 12 is adjusted to 900 cubic meters per hour or less, and the extra 50 cubic meters per hour is allocated to other exhaust fans 12. The allocation principle can be random allocation, allocation according to a certain proportion or weight, or allocation according to the floor level, with lower-floor exhaust fans 12 receiving more and higher-floor exhaust fans 12 receiving less. No specific limitation is made here.

[0094] It should be noted that the above examples are merely illustrative for the purpose of understanding the present invention and should not be construed as limiting the present invention.

[0095] In summary, the control method of the present invention can make fuller use of the smoke exhaust capacity of the public flue 14 and optimize the smoke extraction effect in the user's kitchen.

[0096] Please refer to Figure 5 According to an embodiment of the present invention, a control device 200 for a central smoke machine system 100 includes a processor 20 and a memory 22. The memory 22 stores a computer program, which, when executed by the processor 20, implements the steps of the control method described in any of the above embodiments.

[0097] Please refer to Figure 5 A central smoke machine system 100 according to an embodiment of the present invention includes the control device 200 described in the above embodiment.

[0098] The present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor 20, implements the steps of the control method of any of the above embodiments.

[0099] It should be noted that the explanation of the control method and beneficial effects of the above embodiments also applies to the control device 200, the central smoke machine system 100, and the computer-readable storage medium of the embodiments of the present invention. To avoid redundancy, they will not be elaborated in detail here.

[0100] In one implementation, the control method implemented by the computer program when executed by the processor 20 includes the following steps:

[0101] Step 101: Obtain the total required air volume for all terminal range hoods that are currently in operation;

[0102] Step 103: Under the condition that the total required air volume is not greater than the minimum air volume limit of the common flue, determine the corrected air volume of each terminal flue, and the corrected air volume is not less than the required air volume of each terminal flue.

[0103] Step 105: Send the corrected airflow to the terminal range hood so that the terminal range hood operates according to the corrected airflow.

[0104] The aforementioned control device 200, central smoke hood system 100, and computer-readable storage medium acquire the total required air volume of all terminal smoke hoods in the on state. Under the condition that the total required air volume is not greater than the minimum exhaust limit of the common smoke duct, the corrected air volume of each terminal smoke hood is determined. The corrected air volume is not less than the required air volume, so that the operation of each terminal smoke hood can make full use of the exhaust capacity of the common smoke duct and improve the utilization rate of the exhaust capacity of the common smoke duct.

[0105] It is understood that a computer program includes computer program code. Computer program code can be in the form of source code, object code, executable files, or certain intermediate forms. Computer-readable storage media can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, external hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), and software distribution media, etc. The processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0106] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0107] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A control method for a central smoke machine system, characterized in that, include: Obtain the total required air volume for all active range hoods; If the total required air volume is not greater than the minimum air volume limit of the common flue, the corrected air volume of each terminal flue is determined, and the corrected air volume is not less than the required air volume of each terminal flue. The corrected airflow is sent to the terminal range hood so that the terminal range hood operates according to the corrected airflow. The corrected air volume satisfies the following conditions: ,in, This indicates the corrected air volume. This indicates the required air volume. This represents the correction function. ; Determining the corrected airflow for each terminal exhaust fan, provided that the total required airflow does not exceed the minimum airflow limit of the common exhaust duct, includes: The corrected air volume is determined based on the ratio of the minimum air volume limit of the public flue to the total required air volume and the required air volume; The ratio of the minimum air volume limit to the total required air volume is: , This indicates the total required air volume. This indicates the minimum airflow limit for a public smoke duct, with the corrected airflow value as follows: .

2. The control method according to claim 1, characterized in that, The sum of the corrected air volumes satisfies the following condition: ,in, This represents the sum of the corrected air volumes. This indicates the minimum airflow limit for the public flue.

3. The control method according to claim 1, characterized in that, The sum of the corrected air volumes satisfies the following condition: ,in, This represents the sum of the corrected air volumes. This indicates the minimum airflow limit for the public flue.

4. The control method according to claim 1, characterized in that, The control method includes: The noise level of the terminal range hood is determined based on the corrected air volume and the back pressure of the terminal range hood. If the noise of the terminal exhaust fan is not less than the preset noise, the corrected air volume is adjusted so that the noise of the terminal exhaust fan is less than the preset noise, and the adjusted corrected air volume is sent to the terminal exhaust fan.

5. The control method according to claim 4, characterized in that, The control method includes: After adjusting the corrected airflow of the terminal exhaust fan whose noise level is not less than the preset noise level, the corrected airflow of the other terminal exhaust fans is adjusted, and the adjusted corrected airflow is sent to the other terminal exhaust fans to increase their airflow.

6. The control method according to claim 1, characterized in that, The control method includes: Obtain the installation location information of the central smoke machine system; If the installation location of the central smoke hood system is a preset installation location, and the corrected air volume is not less than a preset air volume threshold, the corrected air volume is adjusted so that the corrected air volume is less than the preset air volume threshold, and the adjusted corrected air volume is sent to the terminal smoke hood; wherein, the preset air volume threshold is related to the preset installation location.

7. The control method according to claim 6, characterized in that, The control method includes: After adjusting the corrected airflow to a value not less than the preset airflow threshold, the corrected airflow of other terminal range hoods is adjusted, and the adjusted corrected airflow is sent to the other terminal range hoods to increase their airflow.

8. A control device for a central smoke machine system, characterized in that, include: processor; and A memory storing a computer program that, when executed by the processor, implements the steps of the control method according to any one of claims 1-7.

9. A central smoke-making system, characterized in that, Includes the control device as described in claim 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the control method according to any one of claims 1-8.

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