Room air volume adjusting method, device and system and storage medium

Abstract

The invention relates to the technical field of air conditioners, and discloses a room air volume adjusting method, device and system and a storage medium which are used for dynamically adjusting the target air volume of each room and improving the comfort of a user. The room air volume adjusting method comprises the steps that real-time operation parameter information of each room is obtained; determining the overshoot of each indoor environment parameter corresponding to each room according to the system mode of each room and each indoor environment parameter; determining a target air valve regulation period of each room according to the system mode of each room, the overshoot of each indoor environment parameter and at least two preset period regulation overshoot intervals; based on the target air valve adjusting period of each room, the system mode, each indoor environment parameter overshoot and at least one preset coefficient adjusting overshoot interval, the air volume adjusting coefficient of each room is determined; and the target air volume of each room is updated according to the air volume adjusting coefficient, the air valve opening degree and the preset air channel sectional area of each room.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly relates to a method, device, system and storage medium for adjusting the air volume of a room. Background Art

[0002] The central air-conditioning system has functions of temperature and humidity adjustment and air renewal. It usually includes a fan, refrigeration and / or heating equipment, an air duct and variable air volume terminals such as air valves to achieve quantitative control of the air volume, temperature and humidity in the room. The air volume is a key parameter to ensure the indoor air quality and appropriate temperature and humidity.

[0003] The traditional method for adjusting the air volume of a room is to set multiple gears for the air valve installed in the room. The user adjusts the opening degree of the air valve by selecting a gear to control the air volume of the room. The opening degree of the air valve cannot be automatically adjusted, resulting in low intelligence and flexibility of the central air-conditioning system and poor user experience. Summary of the Invention

[0004] The present invention provides a method, device, system and storage medium for adjusting the air volume of a room, which is used to automatically determine the air valve adjustment period of each room, automatically and dynamically adjust the opening degree of the air valve of each room in a cycle, improve the intelligence and flexibility of the central air-conditioning system, and improve user comfort.

[0005] In the first aspect of the present invention, a method for adjusting the air volume of a room is provided, which is applied to a central air-conditioning system. The central air-conditioning system is respectively connected to the air valves and indoor environment sensors in each room, and adjusts the air volume of the corresponding room by controlling the opening degree of the air valve of each air valve. The method for adjusting the air volume of the room includes: obtaining the real-time operation parameter information of each room, where the real-time operation parameter information includes the air valve opening degree, system mode and at least one indoor environment parameter; determining the overshoot of each indoor environment parameter corresponding to each room according to the system mode of each room and each indoor environment parameter; determining the target air valve adjustment period of each room according to the system mode of each room, the overshoot of each indoor environment parameter and at least two preset cycle control overshoot intervals; determining the air volume adjustment coefficient of each room based on the target air valve adjustment period of each room, the system mode, the overshoot of each indoor environment parameter and at least one preset coefficient control overshoot interval; updating the target air volume of each room according to the air volume adjustment coefficient of each room, the air valve opening degree and the preset air duct cross-sectional area.

[0006] The second aspect of the present invention provides a room air volume regulating device, which is applied to a central air-conditioning system. The central air-conditioning system is respectively connected to the air valves and indoor environment sensors in each room, and the air volume of the corresponding room is adjusted by controlling the air valve opening of each air valve. The room air volume regulating device includes: an acquisition module, configured to acquire real-time operation parameter information of each room, where the real-time operation parameter information includes air valve opening, system mode, and at least one indoor environment parameter; a calculation module, configured to determine the overshoot of each indoor environment parameter corresponding to each room according to the system mode of each room and each indoor environment parameter; a period determination module, configured to determine the target air valve adjustment period of each room according to the system mode of each room, the overshoot of each indoor environment parameter, and at least two preset period regulation overshoot intervals; a coefficient determination module, configured to determine the air volume adjustment coefficient of each room based on the target air valve adjustment period of each room, the system mode, the overshoot of each indoor environment parameter, and at least one preset coefficient regulation overshoot interval; and an update module, configured to update the target air volume of each room according to the air volume adjustment coefficient of each room, the air valve opening, and the preset air duct cross-sectional area.

[0007] The third aspect of the present invention provides a central air-conditioning system, including: a memory and at least one processor, where instructions are stored in the memory; the at least one processor calls the instructions in the memory so that the central air-conditioning system executes the above-mentioned room air volume adjustment method.

[0008] The fourth aspect of the present invention provides a computer-readable storage medium, in which instructions are stored. When the instructions are run on a computer, the computer is made to execute the above-mentioned room air volume adjustment method.

[0009] In the embodiments of the present invention, the target air valve adjustment period of each room is determined according to the system mode of each room and the overshoot of each indoor environment parameter. Compared with adjusting all rooms simultaneously, the flexibility of the central air-conditioning system is improved to adapt to the air volume adjustment frequency requirements of each room, and the phenomenon of room air volume oscillation caused by frequent adjustment is avoided, resulting in a reduction in user comfort. In addition, the air volume of each room is accurately regulated through the air volume adjustment coefficient of each room, the intelligent level of the central air-conditioning system is improved, unnecessary energy consumption of the central air-conditioning system is reduced, and the user experience is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of an embodiment of the room air volume adjustment method in the embodiments of the present invention;

[0011] Figure 2 It is a schematic diagram of another embodiment of the room air volume adjustment method in the embodiments of the present invention;

[0012] Figure 3 Another schematic diagram of the room air volume adjustment method in the embodiment of the present invention;

[0013] Figure 4 A schematic diagram of an embodiment of the room air volume adjustment device in the embodiment of the present invention;

[0014] Figure 5 Another schematic diagram of an embodiment of the room air volume adjustment device in the embodiment of the present invention;

[0015] Figure 6 A schematic diagram of an embodiment of the central air conditioning system in the embodiment of the present invention. Detailed implementation manners

[0016] The present invention provides a room air volume adjustment method, device, system and storage medium, which are used to solve the problems of low intelligence level and poor flexibility in traditional room air volume adjustment, which affect the user experience.

[0017] The terms "first", "second", "third", "fourth", etc. (if any) in the specification, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order different from that shown or described herein. In addition, the terms "include" or "have" and any variation thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0018] For the convenience of understanding, the specific processes of the embodiments of the present invention are described below. Please refer to Figure 1 An embodiment of the room air volume adjustment method in the embodiment of the present invention includes:

[0019] 101. Obtain the real-time operation parameter information of each room, where the real-time operation parameter information includes the damper opening, system mode and at least one indoor environment parameter.

[0020] It can be understood that the execution subject of the present invention can be a central air conditioning system, or a terminal or a server. Specifically, it is not limited here. The embodiment of the present invention takes the central air conditioning system as the execution subject as an example for description.

[0021] The central air conditioning system in this embodiment is respectively connected to the dampers and indoor environment sensors in each room, and adjusts the air volume of the corresponding room by controlling the damper opening of each damper. Among them, the indoor environment sensor may include a carbon dioxide sensor and a temperature sensor.

[0022] In this embodiment, the damper opening is used to indicate the valve opening of the damper. The central air-conditioning system can obtain the current damper opening information of each room through the valve opening sensors on each damper; the system mode refers to the system operation mode selected by the user, including but not limited to heating mode, cooling mode, ventilation mode, dehumidification mode, etc.; the indoor environmental parameters refer to the current indoor environment of the room, and the indoor environmental parameters can include carbon dioxide concentration, indoor temperature, room air volume, etc.

[0023] The central air-conditioning system obtains the current carbon dioxide concentration of each room through a carbon dioxide sensor, and obtains the current indoor temperature of each room through a temperature sensor; the current room air volume of each room is calculated based on the damper opening of each room and the preset air duct cross-sectional area.

[0024] 102. Determine the overshoot of each indoor environmental parameter corresponding to each room according to the system mode of each room and each indoor environmental parameter.

[0025] The central air-conditioning system determines the threshold of each indoor environmental parameter according to the current system mode of each room; perform a difference operation on each indoor environmental parameter of each room and the corresponding indoor environmental parameter threshold to obtain at least one overshoot of each indoor environmental parameter corresponding to each room.

[0026] Among them, the threshold of each indoor environmental parameter is the set value of each indoor environmental parameter in this system mode. The indoor environmental parameter threshold can include the target cooling temperature in the cooling mode, the target heating temperature in the heating mode, the carbon dioxide concentration threshold in the ventilation mode, etc.

[0027] In this embodiment, the overshoot of the indoor environmental parameter refers to the difference between each indoor environmental parameter and the corresponding indoor environmental parameter threshold. The overshoot of the indoor environmental parameter can include the overshoot of the carbon dioxide concentration, the overshoot of the temperature, and the overshoot of the air volume, etc.

[0028] Among them, the overshoot of carbon dioxide is used to indicate the difference between the real-time value of carbon dioxide in each room and the carbon dioxide concentration threshold, that is, the amount exceeding the set value of the carbon dioxide concentration; the overshoot of temperature is used to indicate the difference between the real-time indoor temperature of each room and the target temperature, which can be a positive value, a negative value, or zero.

[0029] In this embodiment, by determining the overshoot of the indoor environmental parameters for each room based on the system mode and indoor environmental parameters of each room, precise control can be achieved for each room. Even under the same system mode, the same set parameters, and the same damper opening, due to factors such as the door opening and closing state, window opening and closing state, and the location of the room for each room, the carbon dioxide concentration and indoor temperature of each room will be different. By adjusting the damper opening based on the overshoot of the indoor environmental parameters for each room, the user needs of different rooms can be met, improving user comfort.

[0030] 103. Determine the target damper adjustment period for each room according to the system mode of each room, each type of overshoot of indoor environmental parameters, and at least two preset cycle control overshoot intervals.

[0031] The central air-conditioning system determines the corresponding at least two cycle control overshoot intervals according to the system mode of each room, and determines the target damper adjustment period for each room according to each type of overshoot of indoor environmental parameters corresponding to each room and the at least two cycle control overshoot intervals corresponding to each room.

[0032] The cycle control overshoot interval in this embodiment refers to the indoor environmental parameter overshoot interval set for cycle control. According to the different types of indoor environmental parameter overshoots, the overshoot interval can be divided into gas concentration overshoot interval, temperature overshoot interval, air volume overshoot interval, etc.

[0033] The range of at least two cycle control overshoot intervals corresponding to each system mode. Each cycle control overshoot interval is composed of one or more of the gas concentration overshoot interval, temperature overshoot interval, and air volume overshoot interval. The composition of each cycle control overshoot interval under different system modes can be the same or different, and the interval range of each type of overshoot interval can be the same or different.

[0034] It can be understood that the more the number of cycle control overshoot intervals, the more precise the control. In this embodiment, the number of cycle control overshoot intervals can be two or more, and there is no specific limitation.

[0035] The target damper adjustment period in this embodiment refers to the period during which the damper automatically adjusts its opening. By determining an appropriate target damper adjustment period for each room, a balance can be achieved between user comfort and low energy consumption, avoiding adjusting all rooms simultaneously. For rooms with a large overshoot, a shorter adjustment period is set to enable the central air-conditioning system to respond quickly to that room, while for rooms with an overshoot of zero or less than the preset value, a suitable longer adjustment period is set to reduce computing resources, avoid unnecessary energy consumption caused by frequent adjustments, improve user comfort, and enhance the flexibility of the central air-conditioning system.

[0036] It can be understood that the shorter the set period of the target air valve adjustment cycle, the greater the adjustment calculation frequency of the overshoot and the valve opening, and the more precise the control. However, if the cycle is too short, it will increase unnecessary energy consumption. Within an appropriate range, the specific value of the target air valve adjustment cycle is not limited in this embodiment.

[0037] 104. Determine the air volume adjustment coefficient for each room based on the target air valve adjustment cycle of each room, the system mode, the overshoot of each indoor environmental parameter, and at least one preset coefficient to control the overshoot interval.

[0038] In a feasible implementation manner, when the timing of the target air valve adjustment cycle of any one room ends, determine the room as the target room. Determine at least one target indoor environmental parameter overshoot and the corresponding at least two target coefficient control overshoot intervals according to the system mode of the target room. When the overshoot of each target indoor environmental parameter of the target room is within any one target coefficient control overshoot interval, determine the air volume adjustment coefficient corresponding to the target coefficient control overshoot interval as the air volume adjustment coefficient of the target room; traverse the target air valve adjustment cycles of each room to update the air volume adjustment coefficient of each room.

[0039] The air volume adjustment coefficient of this embodiment is used to indicate the proportion of adjusting the air volume of the current room, and the coefficient control overshoot interval refers to the overshoot interval set for determining the air volume adjustment coefficient. According to the types of overshoot, the overshoot interval can be divided into the gas concentration overshoot interval, the temperature overshoot interval, and the air volume overshoot interval.

[0040] It can be understood that there are at least two coefficient control overshoot intervals corresponding to each system mode. Each coefficient control overshoot interval is composed of one or more of the gas concentration overshoot interval, the temperature overshoot interval, and the air volume overshoot interval. The composition of each coefficient control overshoot interval under different system modes can be the same or different. The interval ranges of each overshoot interval can be the same or different. The target coefficient control overshoot interval refers to the coefficient control overshoot interval under a certain system mode.

[0041] It should be further noted that the above indoor environmental parameter overshoot can be the indoor environmental parameter overshoot corresponding to the initial operating parameters of the target room, which can reduce the calculation amount based on the initial indoor environmental parameter overshoot; the indoor environmental parameter overshoot can also be the current indoor environmental parameter overshoot of the target room, which can improve the response speed to indoor environmental changes based on the real-time indoor environmental parameter overshoot and is applicable to scenarios where the indoor environment changes due to the change of the opening and closing states of the door and window during the timing of the target air valve adjustment cycle.

[0042] 105. Update the target air volume of each room according to the air volume adjustment coefficient, damper opening, and preset air duct cross-sectional area of each room.

[0043] Calculate the current air volume of each room based on the damper opening and air duct cross-sectional area of each room; perform a multiplication operation on the current air volume of each room and the air volume adjustment coefficient of each room to obtain the updated target air volume of each room.

[0044] In the embodiments of the present invention, the target damper adjustment period of each room is determined according to the system mode and indoor environment parameter overshoot of each room, realizing dynamic adjustment. Compared with adjusting all rooms simultaneously, the flexibility of the central air-conditioning system is improved to adapt to the air volume adjustment frequency requirements of each room, avoiding the phenomenon of air volume oscillation in the room caused by frequent adjustment, resulting in reduced user comfort. And precise control of the air volume of each room is carried out through the air volume adjustment coefficient of each room, improving the intelligence level of the central air-conditioning system, reducing unnecessary energy consumption of the central air-conditioning system, and enhancing the user experience.

[0045] Please refer to Figure 2 , another embodiment of the room air volume adjustment method in the embodiments of the present invention includes:

[0046] 201. Obtain the real-time operation parameter information of each room, and the real-time operation parameter information includes damper opening, system mode, and at least one indoor environment parameter.

[0047] Step 201 can be executed with reference to step 101 and will not be elaborated here.

[0048] 202. Determine the overshoot of each indoor environment parameter corresponding to each room according to the system mode of each room and each indoor environment parameter.

[0049] Specifically, determine the gas concentration threshold of each room according to the system mode of each room, and perform a difference operation on the carbon dioxide of each room and the gas concentration threshold of each room to obtain the gas concentration overshoot of each room;

[0050] Specifically, determine the target temperature of each room according to the system mode of each room, and perform a difference operation on the indoor temperature of each room and the target temperature of each room to obtain the temperature overshoot of each room.

[0051] In a feasible implementation, the system mode further includes an energy-saving sub-mode and a non-energy-saving sub-mode. When the system mode of any room includes the energy-saving sub-mode, the carbon dioxide concentration in the room is subtracted from the preset first gas concentration threshold to obtain the carbon dioxide overshoot in the room. When the system mode of any room includes the non-energy-saving sub-mode, the carbon dioxide concentration in the room is subtracted from the preset second gas concentration threshold to obtain the carbon dioxide overshoot in the room. The system modes of each room and the carbon dioxide concentrations of each room are traversed in sequence to obtain the carbon dioxide overshoot of each room, where the first gas concentration threshold is greater than the second gas concentration threshold.

[0052] In a feasible implementation, when the system mode of any room is the heating mode, the indoor temperature of the room is subtracted from the target heating temperature of each room to obtain the temperature overshoot of each room. When the system mode of any room is the cooling mode, the indoor temperature of the room is subtracted from the target cooling temperature of each room to obtain the temperature overshoot of each room. When the system mode of any room is the ventilation mode or the dehumidification mode, the temperature overshoot of the room is determined according to the indoor temperature of the room, the preset target heating temperature, and the preset target cooling temperature. The system modes of each room and the indoor temperatures of each room are traversed in sequence to obtain the temperature overshoot of each room, where the temperature overshoot may be a positive value or a negative value.

[0053] Optionally, the preset target heating temperature is less than the preset target cooling temperature. When the system mode of any room is the ventilation mode or the dehumidification mode, determining the temperature overshoot of the room according to the indoor temperature of the room, the preset target heating temperature, and the preset target cooling temperature includes: when the system mode of any room is the ventilation mode or the dehumidification mode, the room is determined as the target room, and the relative magnitudes of the indoor temperature of the target room, the target heating temperature, and the target cooling temperature are judged. If the indoor temperature of the target room is greater than or equal to the target cooling temperature, the difference between the indoor temperature of the target room and the target cooling temperature is determined as the temperature overshoot of the target room. If the indoor temperature of the target room is less than or equal to the target heating temperature, the difference between the indoor temperature of the target room and the target heating temperature is determined as the temperature overshoot of the target room. If the indoor temperature of the room is greater than the target heating temperature and the indoor temperature of the target room is less than the target cooling temperature, the temperature overshoot of the target room is determined to be zero.

[0054] 203. Determine the target air valve adjustment period of each room according to the system mode of each room, each indoor environment parameter overshoot, and at least two preset cycle control overshoot intervals.

[0055] When the system mode of any room is the cooling mode or the heating mode, determine the target air valve adjustment period of the room according to the carbon dioxide overshoot amount of the room, the temperature overshoot amount of the room, and at least one preset cycle regulation overshoot amount interval; when the system mode of any room is the ventilation mode or the dehumidification mode, determine the target air valve adjustment period of the room according to the carbon dioxide overshoot amount of the room and at least one preset cycle regulation gas concentration overshoot amount interval; traverse the system mode of each room, the carbon dioxide overshoot amount of each room, and the temperature overshoot amount of each room to obtain the target air valve adjustment period of each room.

[0056] In a feasible implementation manner, when the system mode of any room is the cooling mode or the heating mode, determining the target air valve adjustment period of the room according to the carbon dioxide overshoot amount of the room, the temperature overshoot amount of the room, and at least two preset cycle regulation overshoot amount intervals includes: when the system mode of any room is the cooling mode or the heating mode, determining the first air valve adjustment period of the room according to the carbon dioxide overshoot amount of the room and at least two preset cycle regulation gas concentration overshoot amount intervals; determining the second air valve adjustment period of the room according to the temperature overshoot amount of the room and at least two preset cycle regulation temperature overshoot amount intervals; determining the most unfavorable adjustment period according to the first air valve adjustment period and the second air valve adjustment period, and determining the most unfavorable adjustment period as the target air valve adjustment period of the room, where the most unfavorable adjustment period indicates the shortest period.

[0057] For ease of understanding, an example is provided. Assume that the carbon dioxide concentration overshoot threshold is C_max, the temperature overshoot threshold is Tem_max, Tem_i represents the temperature overshoot amount of the i-th room, Ci represents the carbon dioxide concentration overshoot amount of the i-th room, and CYCLE_i represents the target air valve adjustment period of the i-th room.

[0058] (1) Calculate the first air valve adjustment period CYCLE_i_CO2 according to the temperature overshoot amount

[0059] If |Ci| ≤ C_max, then CYCLEi_CO2 = T1, where T1 is the set first adjustment period;

[0060] If |Ci| > C_max, then CYCLEi_CO2 = T2, where T2 is the set second adjustment period;

[0061] (2) Calculate the second air valve adjustment period CYCLE_i_Tem according to the temperature overshoot amount

[0062] If Tem_i ≤ Tem_max, then CYCLE_i_Tem = T3, where T3 is the set third adjustment period;

[0063] If Tem_i > Tem_max, then CYCLE_i_Tem = T4, where T4 is the set fourth adjustment period;

[0064] (3) The target air valve adjustment period CYCLE_i of the i-th room = min(CYCLE_i_CO2, CYCLE_i_Tem).

[0065] 204. When the timing of the target air valve adjustment period of any room ends, determine the air volume adjustment coefficient of the room according to the system mode of the room, the overshoot of each indoor environmental parameter, and at least two preset coefficients for regulating the overshoot range.

[0066] When the timing of the target air valve adjustment period of any room ends and the system mode of the room is the cooling mode or the heating mode, determine the air volume adjustment coefficient of the room according to the carbon dioxide overshoot, the temperature overshoot, and at least two preset coefficients for regulating the temperature overshoot range; when the timing of the target air valve adjustment period of any room ends and the system mode of the room is the ventilation mode or the dehumidification mode, determine the air volume adjustment coefficient of the room according to the carbon dioxide overshoot of the room and at least two preset coefficients for regulating the gas concentration overshoot range.

[0067] In a feasible implementation manner, when the timing of the target air valve adjustment period of any room ends and the system mode of the room is the cooling mode or the heating mode, determine the air volume adjustment coefficient of the room according to the carbon dioxide overshoot of the room, the temperature overshoot of the room, and at least two coefficients for regulating the temperature overshoot range, including: when the timing of the target air valve adjustment period of any room ends, determine whether the carbon dioxide overshoot of the room is less than the preset carbon dioxide concentration threshold; if so, determine the air volume adjustment coefficient of the room according to the system mode of the room, the temperature overshoot of the room, and at least two low concentration coefficients for regulating the temperature overshoot range; if not, determine the air volume adjustment coefficient of the room according to the system mode of the room, the temperature overshoot of the room, and at least two high concentration coefficients for regulating the temperature overshoot range.

[0068] Specifically, when the timing of the target air valve adjustment period of any room ends and the system mode of the room is the cooling mode, determine the room as the target cooling room; if the carbon dioxide overshoot of the target cooling room is within the preset low gas concentration overshoot range, determine the first cooling air volume adjustment coefficient of the target cooling room according to the preset multiple coefficients for regulating the temperature overshoot range; if the carbon dioxide overshoot of the target cooling room is within the preset high gas concentration overshoot range, determine the second cooling air volume adjustment coefficient of the target cooling room according to the preset multiple coefficients for regulating the temperature overshoot range, and the second cooling air volume adjustment coefficient is greater than or equal to 100%.

[0069] For ease of understanding, an example in the cooling mode is provided. The carbon dioxide concentration threshold is set at 200 ppm. That is, the low gas concentration overshoot range is (0, 200 ppm], and the high gas concentration overshoot range is (200 ppm, ∞). Here, ppm is the unit of gas concentration, representing parts per million concentration, and the cooling air volume adjustment coefficient is α.

[0070] (1) The carbon dioxide overshoot Ci in the i-th room ≤ 200 ppm:

[0071] 1) When the temperature overshoot Tem_i in the i-th room > 1°C, α = 130%;

[0072] 2) When the temperature overshoot Tem_i in the i-th room ∈ (0.5°C, 1°C], α = 110%;

[0073] 3) When the temperature overshoot Tem_i in the i-th room ∈ [-0.5°C, 0.5], α = 100%;

[0074] 4) When the temperature overshoot Tem_i in the i-th room ∈ [-1°C, -0.5°C), α = 90%;

[0075] 5) When the temperature overshoot Tem_i in the i-th room < -1°C, α = 70%;

[0076] (2) The carbon dioxide overshoot Ci in the i-th room > 200 ppm:

[0077] 1) When Tem_i ≤ 0.5°C, α = 100%;

[0078] 2) When Tem_i ∈ (0.5°C, 1°C], α = 110%;

[0079] 3) When Tem_i > 1°C, α = 130%.

[0080] In this embodiment, in the cooling mode, when the carbon dioxide concentration in the room is relatively high, even if the room temperature has a negative overshoot, to ensure that there is sufficient fresh air volume in the room, by restricting the second cooling air volume adjustment coefficient to be greater than or equal to 100%, the target air volume is controlled so as not to decrease, ensuring the comfort of users in the room.

[0081] Specifically, when the timing of the target air valve adjustment cycle in any room ends and the system mode of the room is the heating mode, the room is determined as the target heating room; if the carbon dioxide overshoot in the target heating room is within the preset low gas concentration overshoot range, the first heating air volume adjustment coefficient of the target heating room is determined according to the preset multiple coefficient adjustment temperature overshoot range; if the carbon dioxide overshoot in the target heating room is within the preset high gas concentration overshoot range, the second heating air volume adjustment coefficient of the room is determined according to the preset multiple coefficient adjustment temperature overshoot range, and the second heating air volume adjustment coefficient is greater than or equal to 100%. For ease of understanding, an example in the heating mode is provided, and the carbon dioxide concentration threshold is also set to 200 ppm, and the heating air volume adjustment coefficient is β:

[0082] (1) The carbon dioxide overshoot Ci of the i-th room ≤ 200 ppm:

[0083] 1) When the temperature overshoot Tem_i of the i-th room < -1°C, β = 130%;

[0084] 2) When the temperature overshoot Tem_i of the i-th room ∈ [-1°C, -0.5°C), β = 110%;

[0085] 3) When the temperature overshoot Tem_i of the i-th room ∈ [-0.5°C, 0.5], β = 100%;

[0086] 4) When the temperature overshoot Tem_i of the i-th room ∈ (0.5°C, 1°C], β = 90%;

[0087] 5) When the temperature overshoot Tem_i of the i-th room > 1°C, β = 70%;

[0088] (2) The carbon dioxide overshoot Ci of the i-th room > 200 ppm:

[0089] 1) When Tem_i ≥ -0.5°C, β = 100%;

[0090] 2) When Tem_i ∈ [-1°C, -0.5°C), β = 110%;

[0091] 3) When Tem_i > < -1°C, β = 130%.

[0092] In this embodiment, in the heating mode, if the carbon dioxide concentration in the room is high, even if the room temperature is positively overshot, to ensure that there is sufficient fresh air volume in the room, by restricting the second heating air volume adjustment coefficient to be greater than or equal to 100%, the target air volume is controlled not to decrease, ensuring the comfort of users in the room.

[0093] For ease of understanding, an example in the ventilation mode or dehumidification mode is provided, where the ventilation / dehumidification air volume adjustment coefficient is γ:

[0094] 1) When the carbon dioxide overshoot amount Ci in the i-th room ∈ [-200 ppm, 100 ppm], γ = 100%;

[0095] 2) When the carbon dioxide overshoot amount Ci in the i-th room < -200 ppm, γ = 90%;

[0096] 3) When the carbon dioxide overshoot amount Ci in the i-th room ∈ (100 ppm, 200 ppm], γ = 110%;

[0097] 4) When the carbon dioxide overshoot amount Ci in the i-th room > 200 ppm, γ = 130%.

[0098] In the ventilation mode or dehumidification mode of this embodiment, by setting multiple coefficients to adjust the gas concentration overshoot range, a certain negative overshoot of carbon dioxide in the room is allowed to maintain a low carbon dioxide concentration environment in the room, improving the comfort of users. When the negative overshoot of carbon dioxide exceeds the allowable value, the target air volume is reduced to reduce energy consumption.

[0099] 205. Traverse the target air valve adjustment cycle of each room to obtain the air volume adjustment coefficient of each room.

[0100] The central air-conditioning system obtains the air volume adjustment coefficient of each room according to the traversal of the target air valve adjustment cycle of each room.

[0101] 206. Update the target air volume of each room according to the air volume adjustment coefficient, air valve opening degree and preset air duct cross-sectional area of each room.

[0102] Step 206 can be performed with reference to Step 105 and will not be elaborated here.

[0103] In the embodiment of the present invention, the target air valve adjustment cycle of each room is determined according to the system mode and indoor environment parameter overshoot of each room. When the timing of the target air valve adjustment cycle of any room ends, the air volume of that room is adjusted. Compared with adjusting all rooms simultaneously, the flexibility of the central air-conditioning system is improved through dynamic cycle adjustment to adapt to the air volume adjustment frequency requirements of each room, avoiding the phenomenon of air volume oscillation in the room caused by frequent adjustment, resulting in reduced user comfort. And by setting multiple coefficients to control the overshoot range and the indoor environment parameter overshoot of each room, the air volume of each room is accurately controlled, improving the intelligence level of the central air-conditioning system, reducing unnecessary energy consumption of the central air-conditioning system, and enhancing the user experience.

[0104] Please refer to Figure 3, Another embodiment of the room air volume adjustment method in the embodiments of the present invention includes:

[0105] 301. Obtain the real-time operation parameter information of each room. The real-time operation parameter information includes the damper opening degree, system mode, and at least one indoor environment parameter.

[0106] Step 301 can be executed with reference to step 101 and will not be elaborated here.

[0107] 302. Determine the overshoot of each indoor environment parameter corresponding to each room according to the system mode of each room and each indoor environment parameter.

[0108] The central air-conditioning system can also calculate the current room air volume according to the damper opening degree of each room and the preset air duct cross-sectional area, and perform a difference operation on the room air volume of each room and the target air volume of each room to obtain the air volume overshoot of each room.

[0109] It can be understood that the central air-conditioning system prepares hot air / cold air / fresh air through a fan and a refrigeration / heating device, and transmits it to the room through the air duct to achieve the functions of temperature adjustment and air renewal. The room air volume of each room is closely related to the indoor carbon dioxide concentration and indoor temperature. Usually, when the room air volume increases, the carbon dioxide concentration decreases, and the change trend of the indoor temperature is related to the output air volume and the temperature of the air. If the output is cold air, as the cold air volume increases, the indoor temperature drops to the target refrigeration temperature. If the output is hot air, as the hot air volume increases, the indoor temperature rises to the target heating temperature. Therefore, dynamic adjustment of the room air volume can be achieved through one or more combinations of the carbon dioxide concentration overshoot, temperature overshoot, and air volume overshoot. Among them, adjusting based on the carbon dioxide concentration overshoot and temperature overshoot can directly and significantly improve the comfort of users in the room, while the effect of adjusting the air volume overshoot is indirect. In this embodiment, the air volume overshoot can be used as an alternative overshoot to determine the target damper adjustment cycle and air volume adjustment coefficient when the temperature sensor and / or carbon dioxide concentration sensor do not return data frames, so as to reduce the calculation amount and calculation complexity required when considering three factors simultaneously.

[0110] 303. Determine the target damper adjustment cycle of each room according to the system mode of each room, the overshoot of each indoor environment parameter, and at least two preset cycle control overshoot intervals.

[0111] In a feasible implementation manner, the central air-conditioning system can also determine the adjustment cycle corresponding to the overshoot of each indoor environment parameter through the overshoot of each indoor environment parameter in each room and the corresponding at least two cycle control overshoot intervals, and determine the shortest cycle among the adjustment cycles corresponding to the overshoot of each indoor environment parameter as the target damper adjustment cycle.

[0112] Optionally, after determining the adjustment period corresponding to the overshoot of each indoor environmental parameter, determine the parameter weight corresponding to the overshoot of each indoor environmental parameter according to the system mode, and determine the target air valve adjustment period by performing a weighted sum of the parameter weight corresponding to the overshoot of each indoor environmental parameter and the adjustment period corresponding to the overshoot of each indoor environmental parameter.

[0113] Taking the ventilation mode as an example, the importance ranking of the overshoots in this system mode is: carbon dioxide concentration overshoot > air volume overshoot > temperature overshoot, and the temperature sensor and carbon dioxide concentration sensor in Room A are both working properly, while the carbon dioxide concentration sensor in Room B has no data frame returned.

[0114] If it is set to determine the target air valve adjustment period preferentially through the gas concentration overshoot interval in this mode, then according to the carbon dioxide concentration overshoot in Room A and at least two cycle control gas concentration overshoot intervals, determine the target air valve adjustment period CYCLE corresponding to Room A A = T A , and determine the target air valve adjustment period CYCLE corresponding to Room B according to the air volume overshoot in Room B and at least two cycle control air volume overshoot intervals B = T B .

[0115] If it is set to determine the target air valve adjustment period through the weight distribution method in this mode, where the parameter weight of the carbon dioxide concentration overshoot is δ, the parameter weight of the air volume overshoot is η, and the parameter weight of the temperature overshoot is θ, and δ + η + θ = 1, determine the period corresponding to each overshoot type according to the corresponding overshoot type interval. The period corresponding to the carbon dioxide concentration overshoot in Room A is T A_co2 , the period corresponding to the air volume overshoot is T A_W , and the period corresponding to the temperature overshoot is T A_Tem , then the target air valve adjustment period for Room A is CYCLE A = δ × T A_co2 + η × T A_W + θ × T A_Tem .

[0116] The carbon dioxide concentration sensor in Room B has no data frame returned. Set δ = 0, η = 0.7, θ = 0.3. The period corresponding to the air volume overshoot is T B_W , and the period corresponding to the temperature overshoot is T B_T , then the target air valve adjustment period for Room B is CYCLE B = η × T B_W + θ × T B_Tem .

[0117] 304. When the timing of the target air valve adjustment cycle for any one room ends, determine the overshoot of each current indoor environmental parameter in the target room.

[0118] When the timing of the target air valve adjustment cycle for any one room ends, the central air conditioning system determines the room as the target room, obtains the current operating parameter information of the target room, and generates the overshoot of each current indoor environmental parameter in the target room based on the current operating parameter information of the target room.

[0119] 305. According to the system mode of the target room, the overshoot of each current indoor environmental parameter, and at least two preset coefficients for regulating the overshoot range, determine the air volume adjustment coefficient of the target room.

[0120] 306. Traverse the target air valve adjustment cycles of each room to obtain the air volume adjustment coefficient of each room.

[0121] Steps 305 - 307 can be executed with reference to 204 - 206 and will not be elaborated here.

[0122] 307. Update the target air volume of each room according to the air volume adjustment coefficient, air valve opening, and preset air duct cross-sectional area of each room.

[0123] In a feasible implementation manner, after determining the updated target air volume of each room, it further includes: calculating the target air valve opening of each room according to the target air volume and air duct cross-sectional area of each room, and at the end of the timing of any one target air valve adjustment cycle, controlling the corresponding air valve according to the target air valve opening of the room to make the air volume of the room reach the updated target air volume, and controlling the overshoot of the indoor environmental parameters within an appropriate range.

[0124] Further, after determining the updated target air volume of each room, it further includes: updating the target air valve adjustment cycle of each room according to the overshoot of each current indoor environmental parameter of each room, and at the end of the timing of any one target air valve adjustment cycle, starting the timer according to the updated target air valve adjustment cycle of the room to achieve the dynamic cycle control of the central air conditioning system.

[0125] In the embodiments of the present invention, the target air valve adjustment period for each room is determined according to the system mode of each room and the overshoot of indoor environmental parameters. Compared with adjusting all rooms simultaneously, the flexibility of the central air-conditioning system is improved through dynamic period adjustment to adapt to the air volume adjustment frequency requirements of each room, avoiding the phenomenon of air volume oscillation in the room caused by frequent adjustment, which may lead to a decrease in user comfort. In practical applications, within the target air valve adjustment period of any room, due to changes in the opening and closing states of the door and window of the room, the indoor environment of the target room will change. In this embodiment, when the timing of the target air valve adjustment period of any room ends, the air volume adjustment coefficient is confirmed based on the current overshoot of indoor environmental parameters of the room, and the overshoot interval and the overshoot of indoor environmental parameters of each room are regulated by setting multiple coefficients to accurately regulate the air volume of each room, improving the accuracy of the air volume adjustment coefficient, helping the central air-conditioning system to adapt to dynamically changing indoor environmental conditions, reducing unnecessary energy consumption of the central air-conditioning system, and enhancing the user experience.

[0126] The method for adjusting the air volume of a room in the embodiments of the present invention has been described above. Next, the device for adjusting the air volume of a room in the embodiments of the present invention will be described. Please refer to Figure 4 , an embodiment of the device for adjusting the air volume of a room in the embodiments of the present invention includes:

[0127] The central air-conditioning system is respectively connected to the air valves and indoor environment sensors in each room, and the air volume of the corresponding room is adjusted by controlling the air valve opening of each air valve. The device for adjusting the air volume of a room includes:

[0128] An acquisition module 401, configured to acquire the real-time operation parameter information of each room, where the real-time operation parameter information includes the air valve opening, system mode, and at least one indoor environmental parameter;

[0129] A calculation module 402, configured to determine the overshoot of each indoor environmental parameter corresponding to each room according to the system mode of each room and each indoor environmental parameter;

[0130] A period determination module 403, configured to determine the target air valve adjustment period of each room according to the system mode of each room, the overshoot of each indoor environmental parameter, and at least two preset period control overshoot intervals;

[0131] A coefficient determination module 404, configured to determine the air volume adjustment coefficient of each room based on the target air valve adjustment period of each room, the system mode, the overshoot of each indoor environmental parameter, and at least one preset coefficient control overshoot interval;

[0132] An update module 405, configured to update the target air volume of each room according to the air volume adjustment coefficient, air valve opening, and preset air duct cross-sectional area of each room.

[0133] In the embodiment of the present invention, the target air valve adjustment period of each room is determined according to the system mode of each room and the overshoot of indoor environmental parameters, realizing dynamic adjustment. Compared with adjusting all rooms simultaneously, the flexibility of the central air-conditioning system is improved to adapt to the air volume adjustment frequency requirements of each room, avoiding the phenomenon of air volume oscillation in the room caused by frequent adjustment, resulting in reduced user comfort. And the air volume of each room is accurately regulated through the air volume adjustment coefficient of each room, improving the intelligent level of the central air-conditioning system, reducing unnecessary energy consumption of the central air-conditioning system, and enhancing the user experience.

[0134] Please refer to Figure 5 , another embodiment of the room air volume adjustment device in the embodiment of the present invention includes:

[0135] An acquisition module 401, configured to acquire the real-time operation parameter information of each room, where the real-time operation parameter information includes the air valve opening, system mode, and at least one indoor environmental parameter;

[0136] A calculation module 402, configured to determine the overshoot of each indoor environmental parameter corresponding to each room according to the system mode of each room and each indoor environmental parameter;

[0137] A period determination module 403, configured to determine the target air valve adjustment period of each room according to the system mode of each room, the overshoot of each indoor environmental parameter, and at least two preset period control overshoot intervals;

[0138] A coefficient determination module 404, configured to determine the air volume adjustment coefficient of each room based on the target air valve adjustment period of each room, the system mode, the overshoot of each indoor environmental parameter, and at least one preset coefficient control overshoot interval;

[0139] An update module 405, configured to update the target air volume of each room according to the air volume adjustment coefficient of each room, the air valve opening, and the preset air duct cross-sectional area.

[0140] Optionally, the period determination module 403 includes:

[0141] A first determination unit 4031, configured to determine the target air valve adjustment period of the room according to the carbon dioxide overshoot of the room, the temperature overshoot of the room, and at least one preset period control overshoot interval when the system mode of any one room is the cooling mode or the heating mode;

[0142] A second determination unit 4032, when the system mode of any one room is the ventilation mode or the dehumidification mode, determines the target air valve adjustment period of the room according to the carbon dioxide overshoot of the room and at least one preset period control gas concentration overshoot interval;

[0143] The first traversal unit 4033 is configured to traverse the system mode of each room, the carbon dioxide overshoot of each room, and the temperature overshoot of each room, so as to obtain the target air valve adjustment period of each room.

[0144] Optionally, the first determination unit 4031 is specifically configured to:

[0145] When the system mode of any one room is the cooling mode or the heating mode, determine the first air valve adjustment period of the room according to the carbon dioxide overshoot of the room and at least two preset period control gas concentration overshoot intervals;

[0146] Determine the second air valve adjustment period of the room according to the temperature overshoot of the room and at least two preset period control temperature overshoot intervals;

[0147] Determine the most unfavorable adjustment period according to the first air valve adjustment period and the second air valve adjustment period, and determine the most unfavorable adjustment period as the target air valve adjustment period of the room.

[0148] Optionally, the coefficient determination module 404 includes:

[0149] The third determination unit 4041 is configured to, when the timing of the target air valve adjustment period of any one room ends, determine the air volume adjustment coefficient of the room according to the system mode of the room, each indoor environment parameter overshoot, and at least two preset coefficient control overshoot intervals;

[0150] The second traversal unit 4042 is configured to traverse the target air valve adjustment period of each room to obtain the air volume adjustment coefficient of each room.

[0151] Optionally, the third determination unit 4041 is specifically configured to:

[0152] When the timing of the target air valve adjustment period of any one room ends and the system mode of the room is the cooling mode or the heating mode, determine the air volume adjustment coefficient of the room according to the carbon dioxide overshoot, the temperature overshoot, and at least two preset coefficient control temperature overshoot intervals;

[0153] When the timing of the target air valve adjustment period of any one room ends and the system mode of the room is the ventilation mode or the dehumidification mode, determine the air volume adjustment coefficient of the room according to the carbon dioxide overshoot of the room and at least two preset coefficient control gas concentration overshoot intervals.

[0154] Optionally, the coefficient determination module 404 is further configured to: when the timing of the target air valve adjustment period of any one room ends, determine the overshoot of each current indoor environment parameter of the target room;

[0155] Determine the air volume adjustment coefficient of the target room according to the system mode of the target room, the overshoot of each current indoor environment parameter, and at least two preset coefficients for regulating the overshoot range.

[0156] Traverse the target air valve adjustment period of each room to obtain the air volume adjustment coefficient of each room.

[0157] Optionally, the update module 405 is specifically configured to:

[0158] Calculate the current air volume of each room according to the air valve opening degree and the air duct cross-sectional area of each room.

[0159] Perform a multiplication operation on the current air volume of each room and the air volume adjustment coefficient of each room to obtain the updated target air volume of each room.

[0160] In the embodiment of the present invention, the target air valve adjustment period of each room is determined according to the system mode and the overshoot of the indoor environment parameters of each room. When the timing of the target air valve adjustment period of any room ends, the air volume of that room is adjusted. Compared with adjusting all rooms simultaneously, the flexibility of the central air-conditioning system is improved through dynamic period adjustment to adapt to the air volume adjustment frequency requirements of each room, avoiding the phenomenon of air volume oscillation in the room caused by frequent adjustment, resulting in reduced user comfort. And by setting multiple coefficients to regulate the overshoot range and the overshoot of the indoor environment parameters of each room, the air volume of each room is accurately regulated, improving the intelligence level of the central air-conditioning system, reducing unnecessary energy consumption of the central air-conditioning system, and enhancing the user experience.

[0161] Above Figure 4 And Figure 5 The room air volume adjustment device in the embodiment of the present invention is described in detail from the perspective of modular functional entities. Next, the central air-conditioning system in the embodiment of the present invention is described in detail from the perspective of hardware processing.

[0162] See Figure 6 As shown, the central air-conditioning system includes a processor 600 and a memory 601. The memory 601 stores machine-executable instructions that can be executed by the processor 600, and the processor 600 executes the machine-executable instructions to implement the above-mentioned room air volume adjustment method.

[0163] Furthermore, Figure 6 The central air-conditioning system shown also includes a bus 602 and a communication interface 603. The processor 600, the communication interface 603, and the memory 601 are connected through the bus 602.

[0164] Among them, the memory 601 may include a high-speed random access memory (RAM), and may also include non-volatile memory, such as at least one disk memory. The communication connection between this system network element and at least one other network element is realized through at least one communication interface 603 (which can be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. can be used. The bus 602 can be an ISA bus, a PCI bus, an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of representation, Figure 6 only a bidirectional arrow is used in Figure 6 , but it does not mean that there is only one bus or one type of bus.

[0165] The processor 600 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit in the hardware of the processor 600 or instructions in the form of software. The above-mentioned processor 600 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present disclosure. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present disclosure can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of the hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, register, etc. This storage medium is located in the memory 601, and the processor 600 reads the information in the memory 601 and combines its hardware to complete the method steps of the foregoing embodiments.

[0166] The present invention also provides a computer-readable storage medium, which can be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium. Instructions are stored in the computer-readable storage medium. When the instructions run on a computer, the computer is caused to execute the steps of the room air volume regulation method, and the steps specifically include: obtaining real-time operation parameter information of each room, where the real-time operation parameter information includes damper opening, system mode, and at least one indoor environment parameter; determining the overshoot of each indoor environment parameter corresponding to each room according to the system mode of each room and each indoor environment parameter; determining the target damper adjustment period of each room according to the system mode of each room, the overshoot of each indoor environment parameter, and at least two preset cycle regulation overshoot intervals; determining the air volume regulation coefficient of each room based on the target damper adjustment period of each room, the system mode, the overshoot of each indoor environment parameter, and at least one preset coefficient regulation overshoot interval; updating the target air volume of each room according to the air volume regulation coefficient of each room, the damper opening, and the preset air duct cross-sectional area. In this embodiment, the target damper adjustment period is determined through the overshoot of the indoor environment parameter of each room, realizing the dynamic adjustment of the room air volume. By setting at least two coefficient regulation overshoot intervals to determine the corresponding air volume regulation coefficient, the accurate regulation of the target air volume of each room is realized, improving the performance of the central air-conditioning system and the user experience.

[0167] The above-mentioned overshoot of the indoor environment parameter includes carbon dioxide overshoot and temperature overshoot. The determining of the target damper adjustment period of each room according to the system mode of each room, the overshoot of each indoor environment parameter, and at least two preset cycle regulation overshoot intervals includes: when the system mode of any one room is the cooling mode or the heating mode, determining the target damper adjustment period of the room according to the carbon dioxide overshoot of the room, the temperature overshoot of the room, and at least one preset cycle regulation overshoot interval; when the system mode of any one room is the ventilation mode or the dehumidification mode, determining the target damper adjustment period of the room according to the carbon dioxide overshoot of the room and at least one preset cycle regulation gas concentration overshoot interval; traversing the system mode of each room, the carbon dioxide overshoot of each room, and the temperature overshoot of each room to obtain the target damper adjustment period of each room. In this embodiment, the adjustment period under different system modes is determined through the carbon dioxide overshoot and the temperature overshoot, improving the flexibility of period determination.

[0168] When the system mode of any room is the cooling mode or the heating mode, determining the target air valve adjustment period of the room according to the carbon dioxide overshoot amount of the room, the temperature overshoot amount of the room, and at least one preset cycle control overshoot amount range includes: when the system mode of any room is the cooling mode or the heating mode, determining the first air valve adjustment period of the room according to the carbon dioxide overshoot amount of the room and at least two preset cycle control gas concentration overshoot amount ranges; determining the second air valve adjustment period of the room according to the temperature overshoot amount of the room and at least two preset cycle control temperature overshoot amount ranges; determining the most unfavorable adjustment period according to the first air valve adjustment period and the second air valve adjustment period, and determining the most unfavorable adjustment period as the target air valve adjustment period of the room. In this embodiment, the periods corresponding to the overshoot amounts of each indoor environmental parameter are respectively confirmed in the heating and cooling modes, and rapid adjustment is realized by determining the most unfavorable adjustment period, thereby improving the response speed of the central air-conditioning system to the indoor extreme environment.

[0169] Determining the air volume adjustment coefficient of each room according to the target air valve adjustment period of each room, the system mode, the overshoot amount of each indoor environmental parameter, and at least one preset coefficient control overshoot amount range includes: when the timing of the target air valve adjustment period of any room ends, determining the air volume adjustment coefficient of the room according to the system mode of the room, the overshoot amount of each indoor environmental parameter, and at least two preset coefficient control overshoot amount ranges; traversing the target air valve adjustment periods of each room to obtain the air volume adjustment coefficients of each room. In this embodiment, by distinguishing different control requirements, the flexibility and adaptability of the system are improved, and the requirements of different rooms are better met.

[0170] The overshoot amount of the indoor environmental parameter includes the carbon dioxide overshoot amount and the temperature overshoot amount. When the timing of the target air valve adjustment period of any room ends, determining the air volume adjustment coefficient of the room according to the system mode of the room, the overshoot amount of each indoor environmental parameter, and at least two preset coefficient control overshoot amount ranges includes: when the timing of the target air valve adjustment period of any room ends and the system mode of the room is the cooling mode or the heating mode, determining the air volume adjustment coefficient of the room according to the carbon dioxide overshoot amount, the temperature overshoot amount, and at least two preset coefficient control temperature overshoot amount ranges; when the timing of the target air valve adjustment period of any room ends and the system mode of the room is the ventilation mode or the dehumidification mode, determining the air volume adjustment coefficient of the room according to the carbon dioxide overshoot amount of the room and at least two preset coefficient control gas concentration overshoot amount ranges. In this embodiment, the adjustment requirements in different modes are comprehensively considered, and the accurate control of the room air volume in different system modes is realized.

[0171] The method for determining the air volume adjustment coefficient for each room based on the target air valve adjustment period for each room, the system mode, the overshoot of each indoor environmental parameter, and at least one preset coefficient to control the overshoot range includes: when the timing of the target air valve adjustment period for any one room ends, determining the overshoot of each current indoor environmental parameter for the target room; determining the air volume adjustment coefficient for the target room based on the system mode of the target room, the overshoot of each current indoor environmental parameter, and at least two preset coefficients to control the overshoot range; and traversing the target air valve adjustment periods for each room to obtain the air volume adjustment coefficients for each room. In this embodiment, when the timing of the target air valve adjustment period ends, the air volume adjustment coefficient is confirmed based on the current overshoot of the indoor environmental parameters, enabling the central air-conditioning system to more flexibly adapt to dynamically changing environmental conditions.

[0172] The method for updating the target air volume for each room according to the air volume adjustment coefficient for each room, the air valve opening degree, and the preset air duct cross-sectional area includes: calculating the current air volume for each room based on the air valve opening degree and the air duct cross-sectional area for each room; and performing a multiplication operation on the current air volume for each room and the air volume adjustment coefficient for each room to obtain the updated target air volume for each room. In this embodiment, the target air volume is updated through the air volume adjustment coefficient for each room, eliminating the need for manual adjustment and enhancing the user experience.

[0173] Those skilled in the art can clearly understand that for the sake of convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0174] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs.

[0175] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for adjusting the air volume in a room, characterized in that, Applied to a central air conditioning system, the central air conditioning system is respectively connected to the air valves and indoor environment sensors in each room, and the air volume of the corresponding room is adjusted by controlling the opening degree of each air valve. The method for adjusting the air volume of the room includes: Obtain the real-time operation parameter information of each room, where the real-time operation parameter information includes the air valve opening degree, system mode, and at least one indoor environment parameter; Determine the overshoot amount of each indoor environment parameter corresponding to each room according to the system mode of each room and each indoor environment parameter; Determine the target air valve adjustment period of each room according to the system mode of each room, the overshoot amount of each indoor environment parameter, and at least two preset cycle control overshoot amount intervals; Determine the air volume adjustment coefficient of each room based on the target air valve adjustment period of each room, the system mode, the overshoot amount of each indoor environment parameter, and at least one preset coefficient control overshoot amount interval; Update the target air volume of each room according to the air volume adjustment coefficient of each room, the air valve opening degree, and the preset air duct cross-sectional area.

2. The room air volume adjustment method according to claim 1, wherein The overshoot amount of the indoor environment parameter includes the overshoot amount of carbon dioxide and the overshoot amount of temperature. The step of determining the target air valve adjustment period of each room according to the system mode of each room, the overshoot amount of each indoor environment parameter, and at least two preset cycle control overshoot amount intervals includes: When the system mode of any room is the cooling mode or the heating mode, determine the target air valve adjustment period of the room according to the overshoot amount of carbon dioxide in the room, the overshoot amount of temperature in the room, and at least one preset cycle control overshoot amount interval; When the system mode of any room is the ventilation mode or the dehumidification mode, determine the target air valve adjustment period of the room according to the overshoot amount of carbon dioxide in the room and at least one preset cycle control gas concentration overshoot amount interval; Traverse the system mode of each room, the overshoot amount of carbon dioxide in each room, and the overshoot amount of temperature in each room to obtain the target air valve adjustment period of each room.

3. The room air volume adjustment method according to claim 2, characterized in that The step of, when the system mode of any room is the cooling mode or the heating mode, determining the target air valve adjustment period of the room according to the overshoot amount of carbon dioxide in the room, the overshoot amount of temperature in the room, and at least one preset cycle control overshoot amount interval includes: When the system mode of any room is the cooling mode or the heating mode, determine the first air valve adjustment period of the room according to the overshoot amount of carbon dioxide in the room and at least two preset cycle control gas concentration overshoot amount intervals; Determine the second air valve adjustment period of the room according to the overshoot amount of temperature in the room and at least two preset cycle control temperature overshoot amount intervals; Determine the most unfavorable adjustment period according to the first air valve adjustment period and the second air valve adjustment period, and determine the most unfavorable adjustment period as the target air valve adjustment period of the room.

4. The room air volume adjustment method according to claim 1, characterized in that, The step of determining the air volume adjustment coefficient of each room based on the target air valve adjustment period of each room, the system mode, the overshoot amount of each indoor environment parameter, and at least one preset coefficient control overshoot amount interval includes: When the timing of the target air valve adjustment period for any one room ends, determine the air volume adjustment coefficient of the room according to the system mode of the room, the overshoot of each indoor environmental parameter, and at least two preset coefficients for regulating the overshoot interval. Traverse the target air valve adjustment periods of each room to obtain the air volume adjustment coefficient of each room.

5. The room air volume adjustment method according to claim 4, wherein The overshoot of the indoor environmental parameter includes the overshoot of carbon dioxide and the overshoot of temperature. When the timing of the target air valve adjustment period for any one room ends, determining the air volume adjustment coefficient of the room according to the system mode of the room, the overshoot of each indoor environmental parameter, and at least two preset coefficients for regulating the overshoot interval includes: When the timing of the target air valve adjustment period for any one room ends and the system mode of the room is the cooling mode or the heating mode, determine the air volume adjustment coefficient of the room according to the overshoot of carbon dioxide, the overshoot of temperature, and at least two preset coefficients for regulating the temperature overshoot interval. When the timing of the target air valve adjustment period for any one room ends and the system mode of the room is the ventilation mode or the dehumidification mode, determine the air volume adjustment coefficient of the room according to the overshoot of carbon dioxide in the room and at least two preset coefficients for regulating the gas concentration overshoot interval.

6. The room air volume adjustment method according to claim 1, wherein The determining the air volume adjustment coefficient of each room based on the target air valve adjustment period of each room, the system mode, the overshoot of each indoor environmental parameter, and at least one preset coefficient for regulating the overshoot interval includes: When the timing of the target air valve adjustment period for any one room ends, determine the overshoot of each current indoor environmental parameter of the target room. Determine the air volume adjustment coefficient of the target room according to the system mode of the target room, the current overshoot of each indoor environmental parameter, and at least two preset coefficients for regulating the overshoot interval. Traverse the target air valve adjustment periods of each room to obtain the air volume adjustment coefficient of each room.

7. The room air volume adjustment method according to claim 1, characterized in that The updating the target air volume of each room according to the air volume adjustment coefficient of each room, the air valve opening, and the preset air duct cross-sectional area includes: Calculate the current air volume of each room according to the air valve opening and the air duct cross-sectional area of each room. Perform a multiplication operation on the current air volume of each room and the air volume adjustment coefficient of each room to obtain the updated target air volume of each room.

8. An air volume adjustment device for a room, characterized in that, Applied to a central air-conditioning system, the central air-conditioning system is respectively connected to the air valves and indoor environment sensors in each room, and adjusts the air volume of the corresponding room by controlling the air valve opening of each air valve. The room air volume adjustment device includes: An acquisition module, configured to acquire the real-time operation parameter information of each room, where the real-time operation parameter information includes the air valve opening, the system mode, and at least one indoor environmental parameter. A calculation module, configured to determine the overshoot of each corresponding indoor environmental parameter of each room according to the system mode of each room and each indoor environmental parameter. A period determination module, configured to determine the target air valve adjustment period of each room according to the system mode of each room, the overshoot of each indoor environmental parameter, and at least two preset periods for regulating the overshoot interval. A coefficient determination module, configured to determine an air volume adjustment coefficient for each room based on the target air valve adjustment period of each room, the system mode, the overshoot amount of each indoor environmental parameter, and at least one preset coefficient for regulating the overshoot amount interval; An update module, configured to update the target air volume of each room according to the air volume adjustment coefficient of each room, the air valve opening degree, and a preset air duct cross-sectional area.

9. A central air conditioning system, characterized in that, The central air-conditioning system includes: a memory and at least one processor, and instructions are stored in the memory; The at least one processor calls the instructions in the memory so that the central air-conditioning system executes the room air volume adjustment method according to any one of claims 1-7.

10. A computer-readable storage medium having instructions stored thereon, characterized in that, When the instructions are read and run, they execute the room air volume adjustment method according to any one of claims 1-7.

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