CN108731199B - Method and device for scheduling air volume of variable air volume system - Google Patents

Abstract

The application provides a method and a device for scheduling air volume of an air volume variable system, wherein the method comprises the following steps: acquiring collected data of each air supply area of the variable air volume system; determining the required air volume of each air supply area according to the acquired data; and determining the distributed air volume of each air supply area according to the required air volume of each air supply area and the fan capacity of the variable air volume system. According to the technical scheme, the accuracy of calculating the required air volume can be improved, and the distributed air volume of each air supply area can be intelligently scheduled.

Description

Method and device for scheduling air volume of variable air volume system

Technical Field

The application relates to the technical field of electronic equipment, in particular to a method and a device for scheduling air volume of an air volume variable system.

Background

A Variable Air Volume (VAV) system is a system that adjusts the temperature and humidity of the room by changing the amount of Air supplied. According to the change of indoor load or indoor required parameter, the constant air supply temperature is kept, and the air supply quantity of the system is automatically adjusted, so that the indoor parameter can reach the required full air system. The Variable Air Volume system consists of an Air handling unit, a fresh Air/exhaust Air/Air supply/return Air pipeline, a Variable Air Volume (VAV) BOX, a room temperature controller and the like, wherein the Variable Air Volume BOX is the most important part of the system.

At present, an air valve control logic is adopted in a variable air volume air conditioning box, namely, a controller of the variable air volume air conditioning box determines the required air volume through calculation according to the deviation of an indoor actual temperature value \ carbon dioxide concentration value and a set value, and adjusts an electric air door compared with the actual air volume so as to achieve the purpose of controlling the air volume and the total indoor temperature. And the air-conditioning fan adjusts the fan frequency according to the required air volume satisfaction and the terminal static pressure condition fed back by each variable air volume air-conditioning box.

Because the required air volume of each room is calculated based on the deviation between the actual temperature value \ carbon dioxide concentration value and the set value in the room, the calculation basis of the required air volume is single, various factors are not comprehensively considered, and the urgent degree of the air volume required by each room cannot be embodied; on the other hand, the air distribution quantity is unreasonable due to the lack of linkage among the air conditioning boxes with variable air volume.

Disclosure of Invention

The embodiment of the application provides an air quantity scheduling method and device for an air quantity variable system, which can improve the accuracy of calculating the required air quantity and intelligently schedule the distributed air quantity of each air supply area.

In a first aspect, a method for scheduling an air volume of an air volume system is provided, and the method includes:

acquiring the collected data of each air supply area of the variable air volume system;

determining the required air volume of each air supply area according to the acquired data;

and determining the distributed air volume of each air supply area according to the required air volume of each air supply area and the fan capacity of the variable air volume system.

According to the technical scheme of the embodiment of the application, the accuracy of the required air volume is improved by acquiring the collected data of each air supply area as the input basis for calculating the required air volume; in addition, the distributed air volume of each air supply area is determined according to the required air volume and the fan capacity of the variable air volume system, the distributed air volume of each air supply area is reasonably distributed, and the air volume of each air supply area is intelligently scheduled.

With reference to the first aspect, in certain implementations of the first aspect, the collected data includes a number of people, a temperature, a carbon dioxide concentration, and a volume.

According to the technical scheme, the air supply area is subjected to omnibearing data acquisition, the problem that the calculation is too single according to the source is solved, and the calculation accuracy of the required air volume is improved.

With reference to the first aspect, in certain implementations of the first aspect, the determining the distributed air volume of each air supply area according to the required air volume of each air supply area and the fan capacity of the variable air volume system includes:

when Q is greater than or equal to L, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_n(ii) a Or

Q is greater than or equal to L_pAnd when the air volume is less than L, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_pn+L_sn*(Q-L_p)/L_s(ii) a Or

When Q is less than L_pAnd then, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_pn*Q/L_p；

wherein Q represents the fan capacity, L represents the sum of the required air volume of each air supply area, G_nShows the distributed air volume, L, of the n-th blowing region_nIndicating the required air volume, L, of the n-th blowing region_pIndicating the sum of the air volume required to be met by priority of each air supply area, L_sIndicating that the suboptimal air volume of each air supply area satisfies the sum of required air volume, L_pnIndicating that the nth blowing zone meets the required air quantity preferentially, L_snAnd the sub-optimal required air volume of the nth air supply area is met.

According to the technical scheme of the embodiment of the application, the required air volume of each air supply area is divided into the air volume which is preferentially met and the air volume which is secondarily and preferentially met according to the urgent degree of the requirement, the required air volume of each room is comprehensively analyzed, the urgent degree, the fan capacity and the like, and the distributed air volume of each air supply area is reasonably distributed.

With reference to the first aspect, in certain implementations of the first aspect, determining the required air volume of each air supply area according to the collected data includes:

and determining the air volume of each air supply area which meets the requirement preferentially according to at least one of the number of people, the temperature and the carbon dioxide concentration of each air supply area.

According to the technical scheme, the required air volume of each air supply area is divided into the air volume which meets the requirement preferentially and the air volume which meets the requirement secondarily according to the urgent degree of the requirement, the air volume which meets the requirement preferentially and the air volume which meets the requirement secondarily according to the real-time collected data of the air supply areas are determined, and the accuracy of calculation of the required air volume is improved.

With reference to the first aspect, in certain implementations of the first aspect, determining the required air volume of each air supply area according to the collected data includes:

and determining the suboptimum air quantity of each air supply area to meet the required air quantity according to the number of people in each air supply area.

With reference to the first aspect, in certain implementations of the first aspect, determining the air volume preferentially meeting the demand of each air supply area according to at least one of the number of people in each air supply area, the temperature, and the carbon dioxide concentration includes:

c of the first blowing area among the respective blowing areas_rGreater than C_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

or

T in the first blowing region_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

or

In the first blowing region C_rGreater than C_LAnd T_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

computing

And

value of (A), L_p1Taking the larger value; or

In the first blowing region C_rLess than C_LAnd T_rLess than T_LWhen the air quantity of the first air supply area which meets the requirement preferentially is determined to be L_p10; or

When the number of people in the first air supply area is zero, determining the priority of the first air supply areaThe air quantity firstly meeting the demand is L_p10; wherein,

t_bthe standard-reaching waiting time of the first air supply area is shown, M represents the number of collected people in the first air supply area, x represents the set people number correlation coefficient, and L_p1Indicating the priority satisfying required air volume of the first blowing area, C_rRepresenting the carbon dioxide concentration content, C, of the first blowing air region_LIndicating the carbon dioxide concentration, T, of the first blowing region_rIndicating the temperature, T, of the first supply air zone_LThe temperature of the first air supply area is set, V represents the volume of the first air supply area, and t represents the standard waiting time.

According to the technical scheme, the air distribution quantity of each air supply area is reasonably distributed by comprehensively analyzing the required air quantity of each room, the urgency degree, the fan capacity and the like, and linkage among the air supply areas is realized.

With reference to the first aspect, in some implementations of the first aspect, the determining that the sub-optimal air volume requirement of each blowing area is met according to the number of people in each blowing area includes:

determining the second best air supply area in each air supply area to meet the required air volume according to the following formula:

L_s1＝a*M；

wherein L is_s1And the second best of the first air supply area meets the required air quantity, M represents the number of the collected people in the first air supply area, and a represents the set per-person required air quantity.

With reference to the first aspect, in some implementations of the first aspect, the determining that the sub-optimal air volume requirement of each blowing area is met according to the number of people in each blowing area includes:

when the number of people in a first air supply area in each air supply area is zero, determining that the suboptimal air volume satisfying demand of the first air supply area is L_s1＝0。

In a second aspect, a device for scheduling air volume of a variable air volume system is provided, which is characterized by comprising:

the data module is used for acquiring the collected data of each air supply area of the variable air volume system;

the determining module is used for determining the required air volume of each air supply area according to the acquired data;

and the control module is used for determining the distributed air volume of each air supply area according to the required air volume of each air supply area and the fan capacity of the variable air volume system.

According to the technical scheme of the embodiment of the application, the accuracy of the required air volume is improved by acquiring the collected data of each air supply area as the input basis for calculating the required air volume; in addition, the distributed air volume of each air supply area is determined according to the required air volume and the fan capacity of the variable air volume system, the distributed air volume of each air supply area is reasonably distributed, and the air volume of each air supply area is intelligently scheduled.

With reference to the second aspect, in certain implementations of the second aspect, the collected data includes a number of people, a temperature, a carbon dioxide concentration, and a volume.

According to the technical scheme, the air supply area is subjected to omnibearing data acquisition, the problem that the calculation is too single according to the source is solved, and the calculation accuracy of the required air volume is improved.

With reference to the second aspect, in some implementations of the second aspect, the determining the distributed air volume of each air supply area according to the required air volume of each air supply area and the fan capacity of the variable air volume system includes:

when Q is greater than or equal to L, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_n(ii) a Or

Q is greater than or equal to L_pAnd when the air volume is 0 and less than L, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_pn+L_sn*(Q-L_p)/L_s(ii) a Or

When Q is less than L_pWhen the air volume is equal to 0, the distributed air volume of each air supply area is determined according to the following formula:

G_n＝L_pn*Q/L_p；

wherein Q represents the fan capacity, L represents the sum of the required air volume of each air supply area, G_nShows the distributed air volume, L, of the n-th blowing region_nIndicating the required air volume, L, of the n-th blowing region_pIndicating the sum of the air volume required to be met by priority of each air supply area, L_sIndicating that the suboptimal air volume of each air supply area satisfies the sum of required air volume, L_pnIndicating that the nth blowing zone meets the required air quantity preferentially, L_snAnd the sub-optimal required air volume of the nth air supply area is met.

According to the technical scheme of the embodiment of the application, the required air volume of each air supply area is divided into the air volume which is preferentially met and the air volume which is secondarily and preferentially met according to the urgent degree of the requirement, the required air volume of each room is comprehensively analyzed, the urgent degree, the fan capacity and the like, and the distributed air volume of each air supply area is reasonably distributed.

With reference to the second aspect, in some implementations of the second aspect, determining the required air volume of each air supply area according to the collected data includes:

and determining the air volume of each air supply area which meets the requirement preferentially according to at least one of the number of people, the temperature and the carbon dioxide concentration of each air supply area.

According to the technical scheme, the required air volume of each air supply area is divided into the air volume which meets the requirement preferentially and the air volume which meets the requirement secondarily according to the urgent degree of the requirement, the air volume which meets the requirement preferentially and the air volume which meets the requirement secondarily according to the real-time collected data of the air supply areas are determined, and the accuracy of calculation of the required air volume is improved.

With reference to the second aspect, in some implementations of the second aspect, determining the required air volume of each air supply area according to the collected data includes:

and determining the suboptimum air quantity of each air supply area to meet the required air quantity according to the number of people in each air supply area.

With reference to the second aspect, in certain implementations of the second aspect, the determining the air volume of each air supply area that preferentially meets the demand based on at least one of the number of people in each air supply area, the temperature, and the carbon dioxide concentration includes:

c of the first blowing area among the respective blowing areas_rGreater than C_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

or

T in the first blowing region_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

or

In the first blowing region C_rGreater than C_LAnd T_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

computing

And

value of (A), L_p1Taking the larger value; or

In the first blowing region C_rLess than C_LAnd T_rLess than T_LWhen the air quantity of the first air supply area which meets the requirement preferentially is determined to be L_p10; or

When the number of people in the first air supply area is zero, the priority meeting requirement air volume of the first air supply area is determined to be L_p1＝0；

Wherein,

t_bthe standard-reaching waiting time of the first air supply area is shown, M represents the number of collected people in the first air supply area, x represents the set people number correlation coefficient, and L_p1Indicating the priority satisfying required air volume of the first blowing area, C_rRepresenting the carbon dioxide concentration content, C, of the first blowing air region_LIndicating the carbon dioxide concentration, T, of the first blowing region_rIndicating the temperature, T, of the first supply air zone_LThe temperature of the first air supply area is set, V represents the volume of the first air supply area, and t represents the standard waiting time.

According to the technical scheme, the air distribution quantity of each air supply area is reasonably distributed by comprehensively analyzing the required air quantity of each room, the urgency degree, the fan capacity and the like, and linkage among the air supply areas is realized.

With reference to the second aspect, in some implementations of the second aspect, determining the sub-optimal air volume requirement of each air supply area according to the number of people in each air supply area includes:

determining the second best air supply area in each air supply area to meet the required air volume according to the following formula:

L_s1＝a*M；

wherein L is_s1And the second best of the first air supply area meets the required air quantity, M represents the number of the collected people in the first air supply area, and a represents the set per-person required air quantity.

With reference to the second aspect, in some implementations of the second aspect, determining the sub-optimal air volume requirement of each air supply area according to the number of people in each air supply area includes:

when the number of people in a first air supply area in each air supply area is zero, determining that the suboptimal air volume satisfying demand of the first air supply area is L_s1＝0。

Drawings

Fig. 1 shows a schematic diagram of a variable air volume air conditioning system in which a variable air volume system in the prior art is applied to an air conditioner.

Fig. 2 shows a schematic diagram of a system architecture of an application according to an embodiment of the application.

Fig. 3 shows a schematic diagram of a method for scheduling air volume of a variable air volume system according to an embodiment of the application.

Fig. 4 shows a flowchart of a method for scheduling air volume of a variable air volume system according to an embodiment of the present application.

Fig. 5 shows a schematic diagram of an apparatus for scheduling air volume of a variable air volume system according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a variable air volume air conditioning system 100 in which a variable air volume system is applied to an air conditioner in the prior art. Fig. 1 mainly shows a combined air-conditioning box 110 in a variable air volume air-conditioning system 100, and a plurality of variable air volume air-conditioning boxes (including 101, 102, 103, 104, 105, and 106). It should be understood that fig. 1 shows a schematic diagram of a part of the structure of the variable air volume air conditioning system, and the variable air volume system can be applied to other systems besides the air conditioner, and the application is not limited to this.

For the sake of understanding, related terms and their principles referred to in the embodiments of the present application will be described below.

The realization principle of the variable air volume air conditioning system is as follows: the variable air volume air conditioning system consists of an air handling unit, a fresh air/exhaust air/supply air/return air pipeline, a variable air volume air conditioning box, a room temperature controller and the like, wherein the variable air volume air conditioning box is the most important part of the system. The indoor return air and the outdoor fresh air are mixed and processed by the centralized air conditioning unit and then are delivered to each air conditioning area by the air pipe. The air quantity of the air conditioner box controller is adjusted to the indoor air quantity by changing the opening degree of the air valve of the air conditioner box at the tail end according to the indoor load.

When the air volume of the variable air volume air conditioning box of the end device changes, the air volume of the variable frequency fan also changes along with the change:

for example, when the air volume of one variable air volume air conditioning box in the system is insufficient, namely the static pressure of the inlet at the tail end of the variable air volume is insufficient, the variable air volume air conditioning system increases the rotating speed of the variable frequency fan.

For example, the air volume of each variable air volume air conditioning box in the system is satisfied, namely the static pressure at the tail end of the variable air volume is moderate, and the variable air volume air conditioning system keeps the rotating speed of the variable frequency fan.

For example, when the static pressure at the variable air volume tail end inlet of each variable air volume air conditioning box in the system is too high, the variable air volume air conditioning system reduces the rotating speed of the variable frequency fan.

The advantages of the variable air volume air conditioning system include, but are not limited to, the following:

the first point is as follows: the air quantity of the variable air-conditioning system is changed to adapt to the change of the load, and the air-conditioning system operates under partial load for most of time, so the reduction of the air quantity brings the reduction of the energy consumption of the fan.

And a second point: the fan efficiency is high, and different from the conventional constant air volume or fan coil system, the peak value of the air conditioning load of each system is at different time of day in different orientation rooms, so the capacity of the variable air volume air conditioner is not determined by the superposition of all the peak values of the cold load, but is determined by the maximum value of each orientation cold load at a certain time. Thus, the cooling capacity and the air volume of the variable air volume air conditioner are reduced by 10-20% compared with the constant air volume fan coil system.

And a third point: the air conditioning system has the obvious advantages that the freezing water pipe and the condensate pipe do not enter the ceiling space of a building, so that the problem of water condensation and the mildew of the fan coil are avoided.

A fourth point: the system has better flexibility, is easy to modify and expand, and is particularly suitable for buildings with variable patterns, such as rental office buildings and the like. When the indoor parameters are changed or isolated again, only the branch pipe and the end device need to be replaced, the air port position is moved, and even only the indoor temperature controller is reset.

In the related art, a variable air volume air conditioning system shown in fig. 1 will be described. The variable air volume air conditioning box (for example, 101-106) in the variable air volume air conditioning system is controlled according to an air valve control logic, namely, a controller in the air volume air conditioning box determines the required air volume through calculation according to the deviation of an indoor actual temperature value \ carbon dioxide concentration value and a set value, and adjusts the electric air door compared with the actual air volume so as to achieve the purpose of controlling the air volume and the total indoor temperature.

The fan of the combined air-conditioning box 110 adjusts the frequency of the fan according to the required air volume satisfaction fed back by each variable air volume air-conditioning box and the static pressure condition at the tail end.

However, there are some drawbacks to controlling variable air volume air conditioning systems according to prior art damper control logic. For example, on the one hand, the required air volume of each room is calculated according to the deviation of the actual temperature value \ carbon dioxide concentration value in the room from the set value. The calculation basis is too single, the factors such as the existence condition of the personnel in the room, the size of the room, the air quality and the like are not considered, and the urgent degree of the requirement of the room on the air volume is not considered.

On the other hand, each variable air volume air conditioning box is independently controlled, the demand of each room is only considered in calculating the demanded air volume, the urgent degree of the demand of other rooms on the air volume is not considered, and linkage between the air volume air conditioning boxes of each room is lacked.

Therefore, when the total required air volume of all rooms exceeds the maximum air supply capacity of the fan, the required air volume of the room close to the fan is preferentially met, and the required air volume of the room far away from the fan is not met, so that the temperature of the room far away from the fan and the concentration of carbon dioxide cannot be effectively adjusted.

For example, assume that the fan frequency of the combined air conditioning box 110 shown in fig. 1 is 50Hz, and the maximum air supply amount is 1200L/s; the number of persons in room A101 was 6, the temperature was 26 ℃, the carbon dioxide concentration was 780ppm, and the VAV opening degree: 100%, required air volume: 350L/s, and the current actual air volume is as follows: 350L/s; the number of people in room B102 was 3, the temperature was 25.5 ℃, the carbon dioxide concentration was 600ppm, the VAV opening: 80%, required air volume: 200L/s, and the current actual air volume is as follows: 200L/s; the number of people in room C103 was 25, the temperature was 27.5 ℃, the carbon dioxide concentration was 1350ppm, the VAV opening degree: 100%, required air volume: 600L/s, and the current actual air volume is as follows: 100L/s; the number of people in room D104 was 4, the temperature was 25 ℃, the carbon dioxide concentration was 650ppm, the VAV opening: 75%, required air volume: 250L/s, and the current actual air volume is as follows: 250L/s; the number of people in the E room 105 was 0, the temperature was 26 ℃, the carbon dioxide concentration was 400ppm, the VAV opening: 18%, required air volume: 80L/s, and the current actual air volume is as follows: 80L/s; the number of people in the F room 106 was 15, the temperature was 27 ℃, the carbon dioxide concentration was 1000ppm, the VAV opening: 100%, required air volume: 450L/s, and the current actual air volume is as follows: 450L/s.

It can be seen that, the rooms a 101 and B104 are closest to the combined air-conditioning box 110, and therefore the required air volume of the rooms is preferentially satisfied, while the current number of people in the two rooms C103 and F106 is larger than that in the other rooms, and the demand for the air volume is larger and more urgent, but since the two rooms are farther from the combined air-conditioning box 110 than that in the other rooms, the longer the combined air-conditioning box 110 is, the smaller the pressure of the air volume is and the larger the loss of the air volume in the duct is, the less likely the required air volume is to be satisfied, and the air volume distribution in each room is uneven.

The problem that in the prior art, the air volume distribution is uneven due to the fact that the basis source for calculating the required air volume is too single and linkage between the air volume-variable air conditioning boxes of the rooms is not available is solved.

The embodiment of this application carries out omnidirectional collection and the demand amount of wind size, the urgency degree, fan capacity etc. of analysis each room through the field data to each room, and the transport amount of wind in each room of rational distribution, intelligent scheduling amount of wind promote the environment comfort level in every room.

Fig. 2 is a schematic diagram of a system architecture applied according to an embodiment of the present application. As shown in fig. 2, an upper platform 210 is included that calculates the required air volume for each air supply area, e.g., for each room, based on the required air volume algorithm, the fan capacity, and the real-time collection data obtained from the data collection layer 220.

The data acquisition layer 220 is used for acquiring the acquired data of each air supply area, for example, the acquired data of each room in real time.

The gateway 230 reports the collected data, which may include, but is not limited to, the following parameters: the system comprises the volume of each room, real-time temperature, set temperature, standard temperature, air supply temperature, carbon dioxide concentration content, carbon dioxide concentration set content, carbon dioxide concentration standard content, air supply carbon dioxide concentration content, the number of the rooms, the air quantity required by each person per minute, standard-reaching waiting time, number-of-persons correlation coefficient, standard-reaching waiting time, the maximum air quantity of a fan after considering pipeline attenuation and the distributed air quantity of the variable air volume air conditioning box 240 of each room.

According to the reported collected data, the upper platform 210 calculates the required air volume of each air supply area, distributes the air volume to the variable air volume air conditioning boxes 240 of each air supply area, and sends the maximum air volume parameter of the fan to the air conditioning cabinet 250.

A schematic diagram of a system architecture incorporating the application shown in fig. 2. In the embodiment of the application, the total capacity of the fan and the variable air volume air conditioning boxes 240 in each air supply area are combined to intelligently allocate the air volume of each air supply area and the opening degree of the valve of the variable air volume air conditioning box 240, so as to achieve the method for intelligently adjusting the air volume, and the intelligent air volume scheduling implementation process comprises the following steps:

the first step is as follows: data collection, the gateway 230 obtains collected data of each air supply area, such as temperature, carbon dioxide concentration, number of people, room volume, air quality, etc. of each room, and pushes the data to the upper platform 210.

The second step is that: and (4) calculating air quantity, wherein the upper-layer platform 210 calculates the required air quantity of each air supply area according to an air quantity algorithm, fan capacity, collected data and the like.

The third step: and distributing the air volume, namely issuing the required air volume of each air supply area to the tail end variable air volume air conditioning cabinet 240 by the upper-layer platform 210, realizing linkage between the variable air volume air conditioning cabinets 240 and simultaneously issuing the total required air volume to the air conditioning cabinet 250.

The fourth step: the air volume is realized, the air-conditioning fan 450 adjusts the fan frequency according to the total required air volume, and each variable air volume air-conditioning box 240 adjusts the opening of each air valve according to the received required air volume.

The above is a core method flow of the embodiments of the present application, and the embodiments of the present application will be described in detail with reference to specific examples. It should be noted that this is only for helping the skilled person to better understand the embodiments of the present application, and does not limit the scope of the embodiments of the present application.

Fig. 3 is a schematic diagram of an air volume scheduling method of a variable air volume system according to an embodiment of the present application. The method for scheduling air volume shown in fig. 3 may be applied to the system architecture shown in fig. 2, and may also be applied to the variable air volume air conditioning system shown in fig. 1, which is not limited in this application.

And S310, acquiring the collected data of each air supply area of the variable air volume system.

In an embodiment of the present application, the variable air volume system may be a variable air volume air conditioning system applied to an air conditioning system, and the air supply area may be each room in which the variable air volume air conditioning box is located. The collected data may be the data collected by the collected data layer 220 of fig. 2.

For example, the collected data may include population, temperature, carbon dioxide concentration, and volume; or the collected data can comprise the volume, real-time temperature, set temperature, standard temperature, carbon dioxide concentration content, carbon dioxide concentration set content, carbon dioxide concentration standard content, air supply carbon dioxide concentration content and the number of the rooms.

And S320, determining the required air volume of each air supply area according to the acquired data.

Optionally, in the embodiment of the present application, the air volume of each air supply area is determined to meet the demand air volume preferentially according to at least one of the number of people, the temperature and the carbon dioxide concentration of each air supply area.

Optionally, in the embodiment of the present application, it is determined that the sub-optimal air volume of each air supply area satisfies the required air volume according to the number of people in each air supply area.

For example, the sub-optimal air volume requirement of the first blowing area is determined according to the following formula:

L_s1＝a*M；

wherein L is_s1And the second priority of the first air supply area is represented to meet the required air volume, M represents the number of the collected people in the first air supply area, and a represents the set per-person required air volume.

Optionally, in the embodiment of the present application, the required air volume of each air supply region may be divided into a required air volume that is preferentially satisfied and a required air volume that is sub-optimally satisfied according to the urgency of the demand, and the required air volume of each air supply region is a sum of the required air volume that is preferentially satisfied and the required air volume that is sub-optimally satisfied of each air supply region.

For example, each supply area includes a first supply area, which may be understood as one of a plurality of rooms, e.g., room a, and the required air volume L for room a_ARequired air volume L preferentially met by room A_pAThe air quantity L meeting the demand of the room A in the second best_sAThe sum of (1), i.e. the required air volume L of the room A_A＝L_pA+L_sA。

It should be understood that, in the embodiment of the present application, the air volume is preferentially satisfied for each blowing area, and the sub-optimal air volume is satisfied for each blowing area on the premise that the air volume is preferentially satisfied for each blowing area.

TABLE 1

Table 1 shows, in an embodiment of the present application, a single supply area, for example, a first supply area, which may be a room, among the respective supply areas, in which the required air volume of the first supply area includes a demand air volume that is satisfied preferentially and a demand air volume that is less satisfied preferentially. And determining the first air supply area to preferentially meet the required air volume according to at least one of the number of people, the temperature and the carbon dioxide concentration in the first air supply area.

Optionally, in an embodiment of the present application, when both the carbon dioxide concentration and the temperature of the first air supply area do not exceed the standard, it is stated that the current actual air volume of the first air supply area meets the required air volume of the first air supply area, so that it can be shown that both the carbon dioxide concentration and the temperature exceed the standard according to the collected data.

At this time, the degree of demand for the air volume by the first air supply area is relatively low, so that the demand air volume is preferentially met and is 0, and the sub-optimal demand air volume is determined according to the number of people in the current first air supply area.

For example, the first air supply area limited satisfying the required air volume is determined according to the product of the set average air volume per minute and the number of people in the current first air supply area.

Optionally, in an embodiment of the present application, when the carbon dioxide concentration of the first blowing area exceeds the standard, it is stated that the current actual air volume of the first blowing area does not satisfy the required air volume of the first blowing area, and therefore, a fresh air volume needs to be input to make the carbon dioxide concentration of the first blowing area reach the set carbon dioxide concentration of the first blowing area.

For example, in the first blowing region C_rGreater than C_LIn time, the first air supply area can be determined to preferentially meet the required air volume according to the following formula:

wherein,

t_ba standard-reaching waiting time of the first air supply area is represented, M represents the number of collected people in the first air supply area, x represents a set people number correlation coefficient, and L_p1Indicating that the priority of the first blowing area satisfies the required air volume, C_rRepresenting the carbon dioxide concentration content, C, of the first blowing air region_LThe carbon dioxide concentration content of the set first air supply area is represented, V represents the volume of the first air supply area, and t represents the standard-reaching waiting time.

It should be noted that t represents that the standard-reaching waiting time is determined according to the number of people M, and when the number of people in the first air supply area is large, the required air volume of the first air supply area needs to be satisfied in a short time. Further, the input fresh air volume may be air containing carbon dioxide at a constant concentration, and therefore, it is necessary to set the carbon dioxide concentration-supply carbon dioxide concentration.

Optionally, in an embodiment of the present application, when the temperature of the first blowing area exceeds the standard, it is stated that the current actual air volume of the first blowing area does not satisfy the required air volume of the first blowing area, and therefore, the fresh air volume needs to be input to make the temperature of the first blowing area reach the set temperature of the first blowing area.

For example, T in the first blowing region_rGreater than T_LIn time, the first air supply area can be determined to preferentially meet the required air volume according to the following formula:

wherein,

t_ba standard-reaching waiting time of the first air supply area is represented, M represents the number of collected people in the first air supply area, x represents a set people number correlation coefficient, and L_p1Indicating that the priority of the first blowing area satisfies a required air volume, T_rIndicating the temperature, T, of the first air supply zone_LThe temperature of the set first air supply area is represented, V represents the volume of the first air supply area, and t represents the standard waiting time.

Alternatively, in an embodiment of the present application, when the carbon dioxide concentration and the temperature of the first air supply area both exceed the standard, it is stated that the current actual air volume of the first air supply area meets the required air volume of the first air supply area, and therefore, the fresh air volume needs to be input to enable the carbon dioxide concentration and the temperature of the first air supply area to reach the set values.

For example, in the first blowing region C_rGreater than C_LAnd T_rGreater than T_LCan be according toThe following formula determines that the first air supply area preferentially meets the required air volume:

computing

And

value of (A), L_p1Taking the larger value;

wherein,

t_ba standard-reaching waiting time of the first air supply area is represented, M represents the number of collected people in the first air supply area, x represents a set people number correlation coefficient, and L_p1Indicating that the priority of the first blowing area satisfies the required air volume, C_rRepresenting the carbon dioxide concentration content, C, of the first blowing air region_LIndicating the carbon dioxide concentration, T, of the first blowing region_rIndicating the temperature, T, of the first air supply zone_LThe temperature of the set first air supply area is represented, V represents the volume of the first air supply area, and t represents the standard waiting time.

Alternatively, in one embodiment of the present application, when the number of people in the first blowing area is 0, both the air volume first to be satisfied and the air volume second to be satisfied of the first blowing area are 0.

It should be noted that the capacity of the fan is fixed, and when the number of people in the first air supply area is 0, the required air volume of other air supply areas can be preferentially met, so that the reasonable distribution of the air volume according to the current actual situation is realized.

The above description describes the algorithm of the required air volume of the first blowing zone included in each blowing zone, and it should be noted that, in addition to the above calculation method, the distribution air volume of each blowing zone needs to be specifically distributed according to the fan capacity.

In the embodiment of the application, data such as temperature, carbon dioxide concentration, number of people, room volume and the like are collected in all directions on the site of each air supply area and are used as basis input for calculating the required air volume; in addition, the required air volume of each air supply area is divided into the air volume which is preferentially met and the air volume which is suboptimal and meets the requirement according to the urgent degree of the requirement, so that the problems that the existing condition of the personnel in the room, the size of the room, the air quality and other factors are not considered, the urgent degree of the requirement of the room on the air volume is not considered in the prior art are solved, and the accuracy of the required air volume is improved.

And S330, determining the distributed air volume of each air supply area according to the required air volume of each air supply area and the fan capacity of the variable air volume system.

Optionally, in the embodiment of the present application, the distributed air volume of each air supply area is determined according to the required air volume of each air supply area and the fan capacity of the variable air volume system, including but not limited to the following ways:

the first method is as follows: the fan capacity Q is greater than or equal to the sum L of the required air volume of each air supply area, that is, the current fan capacity Q can satisfy the required air volume of each air supply area. At this time, the distributed air volume of each blowing region may be determined according to the following formula:

G_n＝L_n；

wherein G is_nShows the distributed air volume, L, of the n-th blowing region_nThe required air volume of the n-th blowing area is shown.

According to the formula, when the fan capacity Q is larger than or equal to the sum of the required air volume of each air supply area, the required air volume of each air supply area can be met. That is, when the fan capacity Q is greater than or equal to the sum of the required air volumes of the respective air supply regions, both the demand air volume that is satisfied preferentially and the demand air volume that is satisfied secondarily and preferentially of the respective air supply regions can be satisfied.

The second method comprises the following steps: the fan capacity Q is less than the sum L of the required air volume of each air supply area and is more than or equal to the sum L of the required air volume preferentially met by each air supply area_pIn time, the current fan capacity Q can meet the requirement of the air quantity L of each air supply area which is preferentially met_pBut fan capacity Q divided by L_pThe residual air volume can not meet the suboptimal first-meeting required air volume sum L of each air supply area_n. At this time, the distributed air volume of each blowing region may be determined according to the following formula:

G_n＝L_pn+L_sn*(Q-L_p)/L_s；

wherein G is_nShows the distributed air volume, L, of the n-th blowing region_pnIndicating the air volume required to be met by priority of the nth blowing zone, for example, the air volume required to be met by priority of the first blowing zone is L_p1，L_snIndicating that the demanded air volume is less than or equal to the n-th supply area, e.g., L is the less than or equal to the first supply area_s1。

According to the formula, when the fan capacity Q is smaller than the sum L of the required air volume of each air supply area and is larger than or equal to the sum L of the required air volume preferentially met by each air supply area_pWhen the air volume L is satisfied, the air volume L of each air supply area is satisfied_pnThe sum L of the air quantity is preferably satisfied except for the air supply areas in the fan capacity Q_pOutside air volume, i.e. sub-optimal satisfying of air volume L for each blowing zone_snAnd (4) distributing according to the proportion.

The third method comprises the following steps: the fan capacity Q is less than the sum L of the air quantity preferentially meeting the requirements of each air supply area_pIn time, the current fan capacity Q cannot meet the requirement of the air supply area on the priority of the air supply area. At this time, the distributed air volume of each blowing region may be determined according to the following formula:

G_n＝L_pn*Q/L_p；

wherein G is_nShows the distributed air volume, L, of the n-th blowing region_pnIndicating that the nth blowing zone meets the required air quantity preferentially, L_pAnd the sum of the required air volume which is preferentially met in each air supply area is shown.

According to the formula, when the fan capacity Q is smaller than the sum L of the air quantity required by each air supply area which is preferentially met_pIn time, the components of each blowing zone are allocated to be proportionedAnd (4) line allocation.

In the embodiment of this application, through demand amount of wind size, urgent degree, fan capacity etc. in each room of platform integrated analysis, it lacks the linkage to have solved among the prior art between the regional variable air volume air conditioning cabinet of each air supply, leads to the unreasonable problem of amount of wind distribution to the transport amount of wind in each room of rational distribution, intelligent scheduling amount of wind promotes the environmental comfort in every room.

Fig. 4 shows a flowchart of a method for scheduling air volume of a variable air volume system according to an embodiment of the present application. The method for scheduling air volume shown in fig. 4 may be applied to the system architecture shown in fig. 2, and may also be applied to the variable air volume air conditioning system shown in fig. 1, which is not limited in this application.

In the embodiment of the present application, a room is exemplified as an air supply area, and it should be understood that the air supply area may be other than a room.

And S411, starting air volume calculation and air volume scheduling.

For example, the required air volume of each blowing area may be calculated by the upper stage 210 shown in fig. 2 and the calculation algorithm for the required air volume of each blowing area in fig. 3.

S412, the ID number of the first room is read.

For example, the ID number of the room may be a room name of the room, or identification information of the room such as a location of the room.

S413, acquiring the collected data of the first room according to the ID number of the first room.

For example, the collected data may be parameter settings of the variable air volume air conditioning system, real-time temperature in the room, real-time carbon dioxide concentration, and current number of people in the room. The parameter settings of the variable air volume air conditioning system can include, but are not limited to, room volume, set temperature, set carbon dioxide concentration content, set average air volume per minute, set standard waiting time and people number related coefficient. This is not a limitation of the present application.

And S414, judging whether the number M of people in the current room is 0 or not according to the acquired data.

If the number M of people in the current room is 0, executing step S415; if the number of people M in the current room is not 0, the step S431 is executed.

And S415, according to the acquired data obtained in the S414, determining the number of people in the current room as 0, and determining the required air volume of the room: l is_p1＝0，L_s10, wherein L_p1Indicating the first room's priority to meet the demanded air volume, L_s1Indicating that the first room is sub-optimal to meet the demanded air volume.

And S416, judging whether the current room is the last room.

If the current room is the last room controlled by the combined air-conditioning box, executing the step S417; if the current room is not the last room controlled by the combined air-conditioning box, step S418 is performed. Here, S418 is reading the ID number of the next room.

And S417, determining the total required air volume of each room.

Wherein, the total demand air volume of all rooms: l ═ L_p+L_s，

L_p＝(L_p1+L_p2+L_p3+….+L_pn)，L_s＝(L_s1+L_s2+L_s3+….+L_sn)；

L_pIndicating the sum of the air volume required to be met by each room in priority, L_sIndicating that the sum of the demanded air quantities, L, of the rooms is suboptimal_pnIndicating that the nth room meets the required air quantity preferentially, L_snIndicating that the demanded air volume is met by the nth room.

And S419, judging whether the fan capacity Q is larger than or equal to the total required air volume L.

If Q is greater than or equal to L, executing S420; if Q is less than L, S421 is executed.

And S420, when the fan capacity Q is larger than or equal to L, determining the distributed air volume and the total fan output amount of each room.

The distributed air volume of each blowing area can be determined according to the following formula:

G_n＝L_n；

wherein Q represents the fan capacity, L represents the sum of the required air volume of each air supply area, G_nShows the distributed air volume, L, of the n-th blowing region_nThe required air volume of the n-th blowing area is shown.

According to the formula, when the fan capacity Q is larger than or equal to the sum of the required air volume of each air supply area, the required air volume of each room can be met. That is, when the fan capacity Q is greater than or equal to the sum of the demanded air volumes of the respective rooms, both the demanded air volume that is satisfied preferentially and the demanded air volume that is satisfied secondarily in advance of the respective rooms can be satisfied. At this time, the total output of the fan is the total required air volume L.

The air volume required to satisfy the priority and the air volume to satisfy the sub-priority of each room can be calculated according to the algorithm in the foregoing table 1.

If the condition in S419 is satisfied, after S420 is executed, S422 is executed.

And S422, distributing the required air volume to each room.

And S423, adjusting the air supply frequency according to the required air quantity by the fan.

And S424, sending the required air volume of each room to the variable air volume air conditioning box of each room.

And S425, adjusting the opening of the air conditioning box with the variable air volume of each room according to the required air volume.

And S426, ending the air volume scheduling process of the air volume varying system.

If the condition in S419 is not satisfied, S421 is executed.

S421, judging whether the fan capacity Q is smaller than the total demand air quantity L and is larger than or equal to the total priority demand air quantity L_p。

If the condition is satisfied, executing S427; if not, then S428 is performed.

S427, whether the fan capacity Q is smaller than the total demand air volume L and is larger than or equal to the total priority to meet the demand air volume L_pAnd determining the distributed air quantity and the total output quantity of the fan of each room.

The distributed air volume of each blowing area can be determined according to the following formula:

G_n＝L_pn+L_sn*(Q-L_p)/L_s；

wherein Q represents the fan capacity, L represents the sum of the required air volume of each room, G_nShows the distributed air volume, L, of the nth room_nIndicating the required air volume of the nth room, L_pIndicating the sum of the air volume required to be met by each room in priority, L_sIndicating that the sum of the demanded air quantities, L, of the rooms is suboptimal_pnIndicating that the nth room meets the required air quantity preferentially, L_snIndicating that the demanded air volume is met by the nth room.

According to the formula, when the fan capacity Q is smaller than the sum L of the required air volume of each room and is larger than or equal to the sum L of the required air volume preferentially met by each room_pThen, the air volume L is satisfied preferentially by each room_pnThe sum L of the air volume is preferably satisfied except for each room in the fan capacity Q_pOutside air volume, i.e. sub-optimal satisfying of air volume L for each room_snAnd (4) distributing according to the proportion. At this time, the total output of the fan is the fan capacity Q.

After executing S427, the flow of the above-described S422 to S426 is executed.

S428, judging whether the fan capacity Q is smaller than the total priority to meet the required air volume L_p. If the condition is satisfied, S429 is performed.

S429, whether the fan capacity Q is larger than the total priority to meet the required air volume L_pAnd determining the distributed air quantity and the total output quantity of the fan of each room.

The distributed air volume of each blowing area can be determined according to the following formula:

G_n＝L_pn*Q/L_p；

wherein Q represents the fan capacity, L represents the sum of the required air volume of each room, G_nShows the distributed air volume, L, of the nth room_nIndicating the required air volume of the nth room, L_pIndicating the sum of the air volume required to be met by each room in priority, L_sIndicating that the sum of the demanded air quantities, L, of the rooms is suboptimal_pnRepresenting the nth roomPreferably meet the required air quantity, L_snIndicating that the demanded air volume is met by the nth room.

According to the formula, when the fan capacity Q is smaller than the sum L of the air quantity preferentially meeting the requirements of each air supply area_pIn this case, the components of the respective air supply regions are allocated in proportion. At this time, the total output of the fan is the fan capacity Q.

After execution of S429, the flow of S422 to S426 described above is executed.

The above-described flow is a flow in which it is determined in S414 that the number of persons in the room M is 0, and if the number of persons in the room M is not 0 at present, the following steps are executed.

And S430, determining the standard-reaching waiting time.

The achievement wait time may be determined according to the following equation:

wherein, t_bThe standard-reaching waiting time of the first air supply area is represented, M represents the number of collected rooms, and x represents the set people number correlation coefficient.

It should be understood that the standard-reaching waiting time can be obtained by inputting the fresh air quantity into the room, so that each parameter in the room reaches a preset value. Namely, the larger the number M of people in the current room is, the shorter the time is required for enabling each parameter of the room to reach the standard.

And S431, judging whether the concentration and the temperature of the carbon dioxide in the first room are not overproof.

If the above condition is satisfied, executing S432; if the above condition is not satisfied, S433 is executed.

And S432, determining the current required air volume of the first room.

In the first room C_rGreater than C_LAnd then, determining the first room to meet the required air volume preferentially according to the following formula:

L_p1＝0,L_s1＝a*M；

wherein L is_p1Representing the priority satisfaction demand of the first roomAir volume, L_s1And the second priority of the first air supply area is represented to meet the required air volume, M represents the number of the collected people in the first air supply area, and a represents the set per-person required air volume.

After executing S432, the steps of S416 to S426 described above are executed.

If the condition of S431 is not satisfied, S433 is executed.

And S433, judging whether the carbon dioxide and the temperature of the first room exceed the standards or not.

If the above condition is satisfied, S434 is executed; if the above condition is not satisfied, S435 is performed.

And S434, determining the current required air volume of the first room.

In the first room C_rGreater than C_LAnd then, determining the first room air quantity which meets the demand preferentially and the second-best air quantity which meets the demand preferentially according to the following formula:

where t represents the on-demand waiting time for the first room, which may be determined according to S430, M represents the number of people collected for the first room, x represents the set people correlation coefficient, L_p1Indicating that the first room is the first room that satisfies the demanded air volume, C_rRepresenting the collected carbon dioxide concentration content, C, of said first room_LRepresenting a set carbon dioxide concentration content of the first room, V representing a volume of the first room; l is_s1And the air quantity required by the second air supply area is expressed, M represents the collected number of people in the first room, and a represents the set per-person required air quantity.

After the execution of S434, the steps of S416 to S426 described above are executed.

If the condition of S431 is not satisfied, S435 is executed.

S435, judging whether the carbon dioxide and the temperature of the first room exceed the standard.

If the above condition is satisfied, executing S436; if the above condition is not satisfied, S437 is executed.

And S436, determining the current air quantity required by the first room.

T in the first room_rGreater than T_LAnd then, determining the first room air quantity which meets the demand preferentially and the second-best air quantity which meets the demand preferentially according to the following formula:

where t represents the on-demand waiting time for the first room, which may be determined according to S430, M represents the number of people collected for the first room, x represents the set people correlation coefficient, L_p1Indicating that the first room is the first room that meets the demanded air volume, T_rRepresenting the collected temperature, T, of the first room_LRepresents a set temperature of the first room, V represents a volume of the first room; l is_s1And the second priority required air volume of the first room is represented, M represents the collected number of people in the first room, and a represents the set per-person required air volume.

After execution of S436, the above-described steps of S416 to S426 are executed.

If the condition of S435 is not satisfied, S437 is performed.

S437, judging whether the carbon dioxide and the temperature of the first room both exceed the standard.

If the above condition is satisfied, S438 is performed.

And S438, determining the current required air volume of the first room.

In the first blowing region C_rGreater than C_LAnd T_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

computing

And

value of (A), L_p1Taking the larger value;

L_s1＝a*M；

where t represents the on-demand waiting time for the first room, which may be determined according to S430, M represents the number of people collected for the first room, x represents the set people correlation coefficient, L_p1Indicating that the first room is the first room that satisfies the demanded air volume, C_rRepresenting the collected carbon dioxide concentration content, C, of said first room_LRepresenting the carbon dioxide concentration content, T, of said first room of the arrangement_rRepresenting the collected temperature, T, of the first room_LRepresents a set temperature of the first room, V represents a volume of the first room; l is_s1And the second priority required air volume of the first room is represented, M represents the collected number of people in the first room, and a represents the set per-person required air volume.

After the execution of S438, the above-described steps of S416 to S426 are executed.

According to the method for scheduling the air volume of the variable air volume system in the embodiment of the application, the calculation accuracy of the required air volume is improved by acquiring the collected data of each room in an all-around manner, such as the temperature, the carbon dioxide concentration, the number of people, the room volume and the like, as the basis input of the required air volume calculation; on the other hand, the required air volume, the urgency degree, the fan capacity and the like of each room are comprehensively analyzed through the platform, the conveying air volume of each room is reasonably distributed, the air volume is intelligently scheduled, and the environment comfort level of each room is improved.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Having described the method for variable air volume system air volume scheduling according to the embodiment of the present application in detail, the following will describe the apparatus for variable air volume system air volume scheduling according to the embodiment of the present application. It should be understood that the device for scheduling air volume of a variable air volume system according to the embodiment of the present application may perform the foregoing various methods according to the embodiment of the present application, that is, the following specific working processes of various products, and reference may be made to the corresponding processes in the foregoing method embodiments.

Fig. 5 shows a schematic block diagram of an apparatus 500 for variable air volume system air volume scheduling according to an embodiment of the present application. The apparatus 500 for scheduling variable air volume system air volume in fig. 5 may be adapted to implement the method for scheduling variable air volume system air volume described above, and the apparatus 500 may include:

a data module 510, configured to obtain collected data of each air supply area of the variable air volume system;

a determining module 520, configured to determine required air volumes of the air supply areas according to the collected data;

and the control module 530 is configured to determine the distributed air volume of each air supply area according to the required air volume of each air supply area and the fan capacity of the variable air volume system.

According to the technical scheme of the embodiment of the application, the calculation accuracy of the required air volume is improved by acquiring the acquired data of each air supply area and inputting the acquired data as the basis of the air volume calculation; in addition, the distributed air volume of each air supply area is determined according to the required air volume and the fan capacity of the variable air volume system, the distributed air volume of each air supply area is reasonably distributed, and the air volume of each air supply area is intelligently scheduled.

Optionally, the collected data includes population, temperature, carbon dioxide concentration, and volume.

According to the technical scheme, the air supply area is subjected to omnibearing data acquisition, the problem that the calculation is too single according to the source is solved, and the calculation accuracy of the required air volume is improved.

Optionally, the determining the distributed air volume of each air supply region according to the required air volume of each air supply region and the fan capacity of the variable air volume system includes:

when Q is greater than or equal to L, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_n(ii) a Or

Q is greater than or equal to L_pAnd less than L, determining each air supply area according to the following formulaThe distributed air volume of (2):

G_n＝L_pn+L_sn*(Q-L_p)/L_s(ii) a Or

When Q is less than L_pAnd then, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_pn*Q/L_p；

wherein Q represents the fan capacity, L represents the sum of the required air volume of each air supply area, G_nShows the distributed air volume, L, of the n-th blowing region_nIndicating the required air volume, L, of the n-th blowing region_pIndicating the sum of the air volume required to be met by priority of each air supply area, L_sIndicating that the suboptimal air volume of each air supply area satisfies the sum of required air volume, L_pnIndicating that the nth blowing zone meets the required air quantity preferentially, L_snAnd the sub-optimal required air volume of the nth air supply area is met.

According to the technical scheme of the embodiment of the application, the required air volume of each air supply area is divided into the air volume which is preferentially met and the air volume which is secondarily and preferentially met according to the urgent degree of the requirement, the required air volume of each room is comprehensively analyzed, the urgent degree, the fan capacity and the like, and the distributed air volume of each air supply area is reasonably distributed.

Optionally, the determining the required air volume of each air supply area according to the collected data includes:

and determining the air volume of each air supply area which meets the requirement preferentially according to at least one of the number of people, the temperature and the carbon dioxide concentration of each air supply area.

According to the technical scheme, the required air volume of each air supply area is divided into the air volume which meets the requirement preferentially and the air volume which meets the requirement secondarily according to the urgent degree of the requirement, the air volume which meets the requirement preferentially and the air volume which meets the requirement secondarily according to the real-time collected data of the air supply areas are determined, and the accuracy of calculation of the required air volume is improved.

Optionally, the determining the required air volume of each air supply area according to the collected data includes:

and determining the suboptimum air quantity of each air supply area to meet the required air quantity according to the number of people in each air supply area.

Optionally, the determining that the air volume of each air supply area meets the requirement preferentially according to at least one of the number of people in each air supply area, the temperature and the carbon dioxide concentration includes:

c of the first blowing area among the respective blowing areas_rGreater than C_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

or

T in the first blowing region_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

or

In the first blowing region C_rGreater than C_LAnd T_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

computing

And

value of (A), L_p1Taking the larger value; or

In the first blowing region C_rLess than C_LAnd T_rLess than T_LDetermining that the air quantity preferentially meeting the requirement of the first air supply area is L_p10; or

When the number of people in the first air supply area is zero, the priority meeting requirement air volume of the first air supply area is determined to be L_p1＝0；

Wherein,

t_ba standard-reaching waiting time of the first air supply area is represented, M represents the number of collected people in the first air supply area, x represents a set people number correlation coefficient, and L_p1Indicating that the priority of the first blowing area satisfies the required air volume, C_rRepresenting the carbon dioxide concentration content, C, of the first blowing air region_LIndicating the carbon dioxide concentration, T, of the first blowing region_rIndicating the temperature, T, of the first air supply zone_LThe temperature of the set first air supply area is represented, V represents the volume of the first air supply area, and t represents the standard waiting time.

According to the technical scheme, the air distribution quantity of each air supply area is reasonably distributed by comprehensively analyzing the required air quantity of each room, the urgency degree, the fan capacity and the like, and linkage among the air supply areas is realized.

Optionally, the determining that the suboptimal air volume required by each air supply area meets the requirement according to the number of people in each air supply area includes:

determining the second best air supply area in each air supply area to meet the required air volume according to the following formula:

L_s1＝a*M；

wherein L is_s1And the second priority of the first air supply area is represented to meet the required air volume, M represents the number of the collected people in the first air supply area, and a represents the set per-person required air volume.

Optionally, the determining the sub-optimal air volume meeting the demand of each air supply area according to the number of people in each air supply area comprises:

when the number of people in a first air supply area in each air supply area is zero, determining that the suboptimal air volume satisfying demand of the first air supply area is L_s1＝0。

In the embodiment of the application, the accuracy of the required air volume is improved by acquiring the collected data of each air supply area as the input basis for calculating the required air volume; in addition, the distributed air volume of each air supply area is determined according to the required air volume and the fan capacity of the variable air volume system, the distributed air volume of each air supply area is reasonably distributed, and the air volume of each air supply area is intelligently scheduled.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (14)

1. A method for scheduling air volume of an air volume varying system is characterized by comprising the following steps:

acquiring collected data of each air supply area of the variable air volume system;

determining the required air volume of each air supply area according to the acquired data;

determining the distributed air volume of each air supply area according to the required air volume of each air supply area and the fan capacity of the variable air volume system;

when Q is greater than or equal to L, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_n(ii) a Or

Q is greater than or equal to L_pAnd when the air volume is less than L, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_pn+L_sn*(Q-L_p)/L_s(ii) a Or

When Q is less than L_pAnd then, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_pn*Q/L_p；

wherein Q represents the fan capacity, L represents the sum of the required air volume of each air supply area, G_nShows the distributed air volume, L, of the n-th blowing region_nIndicating the required air volume, L, of the n-th blowing region_pIndicating the sum of the air volume required to be met by priority of each air supply area, L_sIndicating that the suboptimal air volume of each air supply area satisfies the sum of required air volume, L_pnIndicating that the nth blowing zone meets the required air quantity preferentially, L_snAnd the sub-optimal required air volume of the nth air supply area is met.

2. The method of claim 1, wherein the collected data includes a number of people, a temperature, a carbon dioxide concentration, and a volume.

3. The method of claim 1 or 2, wherein determining the required air volume for each blowing area from the collected data comprises:

and determining the air volume of each air supply area which meets the requirement preferentially according to at least one of the number of people, the temperature and the carbon dioxide concentration of each air supply area.

4. The method of claim 1 or 2, wherein determining the required air volume for each blowing area from the collected data comprises:

and determining the suboptimum air quantity of each air supply area to meet the required air quantity according to the number of people in each air supply area.

5. The method of claim 3, wherein determining the air flow demand of each air supply area that is preferentially met based on at least one of the number of people in each air supply area, the temperature, and the carbon dioxide concentration comprises:

c of the first blowing area among the respective blowing areas_rGreater than C_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

or

T in the first blowing region_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

or

In the first blowing region C_rGreater than C_LAnd T_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

computing

And

value of (A), L_p1Taking the larger value; or

In the first blowing region C_rLess than C_LAnd T_rLess than T_LThen, it is determined that the priority satisfaction demand of the first air supply region is L_p10; or

When the number of people in the first air supply area is zero, the priority meeting requirement air volume of the first air supply area is determined to be L_p1＝0；

Wherein,

t_ba standard-reaching waiting time of the first air supply area is represented, M represents the number of collected people in the first air supply area, x represents a set people number correlation coefficient, and L_p1Indicating that the priority of the first blowing area satisfies the required air volume, C_rRepresenting the carbon dioxide concentration content, C, of the first blowing air region_LIndicating the carbon dioxide concentration, T, of the first blowing region_rIndicating the temperature, T, of the first air supply zone_LThe temperature of the set first air supply area is represented, V represents the volume of the first air supply area, and t represents the standard waiting time.

6. The method of claim 4, wherein determining the sub-optimal air flow requirement for each of the supply areas based on the number of people in each of the supply areas comprises:

determining the second best air supply area in each air supply area to meet the required air volume according to the following formula:

L_s1＝a*M；

wherein L is_s1And the second priority of the first air supply area is represented to meet the required air volume, M represents the number of the collected people in the first air supply area, and a represents the set per-person required air volume.

7. The method of claim 4, wherein determining the sub-optimal air flow requirement for each of the supply areas based on the number of people in each of the supply areas comprises:

when the number of people in a first air supply area of each air supply area is zero, determining that the suboptimal air volume satisfying demand of the first air supply area is L_s1＝0。

8. The utility model provides a device of variable air volume system air volume dispatch which characterized in that includes:

the data module is used for acquiring the collected data of each air supply area of the variable air volume system;

the determining module is used for determining the required air volume of each air supply area according to the acquired data;

the control module is used for determining the distributed air volume of each air supply area according to the required air volume of each air supply area and the fan capacity of the variable air volume system; wherein,

the control module is specifically configured to:

when Q is greater than or equal to L, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_n(ii) a Or

Q is greater than or equal to L_pAnd when the air volume is less than L, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_pn+L_sn*(Q-L_p)/L_s(ii) a Or

When Q is less than L_pAnd then, determining the distributed air volume of each air supply area according to the following formula:

G_n＝L_pn*Q/L_p；

wherein Q represents the fan capacity, L represents the sum of the required air volume of each air supply area, G_nShows the distributed air volume, L, of the n-th blowing region_nIndicating the required air volume, L, of the n-th blowing region_pIndicating the sum of the air volume required to be met by priority of each air supply area, L_sIndicating that the suboptimal air volume of each air supply area satisfies the sum of required air volume, L_pnIndicating that the nth blowing zone meets the required air quantity preferentially, L_snAnd the sub-optimal required air volume of the nth air supply area is met.

9. The apparatus of claim 8, wherein the collected data includes a number of people, a temperature, a carbon dioxide concentration, and a volume.

10. The apparatus according to claim 8 or 9, wherein the determining module is specifically configured to:

and determining the air volume of each air supply area which meets the requirement preferentially according to at least one of the number of people, the temperature and the carbon dioxide concentration of each air supply area.

11. The apparatus according to claim 8 or 9, wherein the determining module is specifically configured to:

and determining the suboptimum air quantity of each air supply area to meet the required air quantity according to the number of people in each air supply area.

12. The apparatus of claim 10, wherein the determining module is specifically configured to:

c of the first blowing area in each blowing area_rGreater than C_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

or

T in the first blowing region_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

or

In the first blowing region C_rGreater than C_LAnd T_rGreater than T_LAnd then, determining that the first air supply area preferentially meets the required air volume according to the following formula:

computing

And

value of (A), L_p1Taking the larger value; or

In the first blowing region C_rLess than C_LAnd T_rLess than T_LWhile determining the first blowing areaThe priority meeting demand air quantity of the domain is L_p10; or

When the number of people in the first air supply area is zero, the priority meeting requirement air volume of the first air supply area is determined to be L_p1＝0；

Wherein,

t_ba standard-reaching waiting time of the first air supply area is represented, M represents the number of collected people in the first air supply area, x represents a set people number correlation coefficient, and L_p1Indicating that the priority of the first blowing area satisfies the required air volume, C_rRepresenting the carbon dioxide concentration content, C, of the first blowing air region_LIndicating the carbon dioxide concentration, T, of the first blowing region_rIndicating the temperature, T, of the first air supply zone_LThe temperature of the set first air supply area is represented, V represents the volume of the first air supply area, and t represents the standard waiting time.

13. The apparatus of claim 11, wherein the determining module is specifically configured to:

determining the second best air supply area in each air supply area to meet the required air volume according to the following formula:

L_s1＝a*M；

wherein L is_s1And the second priority of the first air supply area is represented to meet the required air volume, M represents the number of the collected people in the first air supply area, and a represents the set per-person required air volume.

14. The apparatus of claim 11, wherein the determining module is specifically configured to:

when the number of people in a first air supply area of each air supply area is zero, determining that the suboptimal air volume satisfying demand of the first air supply area is L_s1＝0。

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