Air purification control system and method

Abstract

The invention is applicable to the technical field of air circulation purification, and provides an air purification control system and method, comprising: based on a building layout, obtaining a building digital model, the building digital model comprising a plurality of independent subspaces, each subspace representing a relatively independent room unit in a building; based on the purification strategy, constructing an air pressure hierarchy matrix of the building under the corresponding strategy; obtaining the number of personnel in the subspace, and obtaining a target air pressure value of each subspace based on the number of personnel and the air pressure hierarchy matrix; and acquiring an actual air pressure value of the subspace, and enabling the actual air pressure value of the subspace to be matched with the target air pressure value by controlling air pressure control equipment in the subspace. According to the method, the air flow of the whole building is subjected to total circulation, the preset air pressure of the subspace can be conveniently defined and controlled, the overall purification effect of the building is improved, the manufacturing cost level and the energy consumption value of the whole purification system are reduced, and application and popularization are facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of air circulation purification, and in particular relates to an air purification control system and method. Background Art

[0002] Air purification control systems are devices or systems used to improve indoor air quality. They are usually used to filter pollutants in the air, such as dust, pollen, mold, bacteria and volatile organic compounds (VOCs) to purify the air. Such systems are usually installed in various buildings such as residences, offices, hospitals, etc., and use mechanical filtration, electronic filtration, activated carbon adsorption, ultraviolet disinfection and other means to purify the air to provide a cleaner, healthier and more comfortable indoor air environment.

[0003] Although existing air purification control systems can purify air by creating air circulation, most current systems can only purify air indoors through internal circulation. To achieve internal air circulation, a more complex airflow input and output system needs to be set up for each individual room, which makes the entire system expensive and the energy consumption level is often high.

[0004] Therefore be necessary to improve existing air purification circulation system. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide an air purification method, which aims to solve the problem that most current air purification control systems can only purify the air indoors through internal circulation. To achieve internal air circulation, it is necessary to set up a more complex airflow input and input system for each room, which makes the entire system expensive and the energy consumption level is often high.

[0006] The embodiment of the present application is implemented by providing an air purification method, the method comprising: Based on the building layout, a building digital model is obtained, wherein the building digital model includes a plurality of independent subspaces, each of which represents a relatively independent room unit inside the building; Based on the purification strategy, the air pressure level matrix of the building under the corresponding strategy is constructed: P=[{p}_{1}+{p}_{2}+...+{p}_{m}] ; in, is greater than 0 and not greater than integer, is greater than 0 and not greater than integer, is the air pressure level matrix of the building, is the air pressure level table for each subspace in the building, The preset air pressure values ​​corresponding to different numbers of people in the subspace; Obtaining the number of people in the subspace, and obtaining a target air pressure value for each subspace based on the number of people and the air pressure level matrix; The actual air pressure value of the subspace is obtained, and the air pressure control device in the subspace is controlled to make the actual air pressure value of the subspace fit the target air pressure value.

[0007] Preferably, based on the purification strategy, the method for constructing the air pressure hierarchy matrix of the building under the corresponding strategy is: The purification strategy includes a time segmentation strategy, which divides a day into a number of planned time periods, and constructs a different air pressure level matrix in each planned time period.

[0008] Preferably, the air pressure level table of the subspace is The method to obtain is: Acquire the attribute type of the room unit in the building, wherein the attribute type at least includes a connected space, a normally low-pressure space, a normally high-pressure space, and a linkage space, and each attribute type of the room unit has a preset hierarchical table for air pressure; Get the attribute type of each subspace; Based on the correspondence between the attribute type of the subspace and the attribute type of the room unit, the air pressure level table of each subspace is obtained.

[0009] Preferably, the numerical relationship between the air pressures of the interconnected space, the normally low-pressure space, the normally high-pressure space and the linked space is: The air pressure value of the connected space is equal to the reference air pressure; The air pressure value of the normally low-pressure space is lower than the reference air pressure; The air pressure value of the normally high pressure space is higher than the reference air pressure; The air pressure value of the linkage space is equal to the average of the air pressure values ​​of all subspaces connected thereto.

[0010] Preferably, the air purification method further comprises: Based on the particle sensor in the subspace, the pollutant content in the subspace is collected to obtain the particle content; When the particle content exceeds a threshold, the attribute type of the subspace is obtained; If the attribute type of the subspace is a normally high pressure space, then the target air pressure value of the subspace is increased; If the attribute type of the subspace is a normally low-pressure space, the target air pressure value of the subspace is lowered.

[0011] Preferably, the method for obtaining the number of people in the subspace is: Based on the infrared sensor, the number of heat source signals in the subspace is judged to obtain the number of heat sources; Based on the number of heat sources, the number of people in the subspace is obtained.

[0012] Preferably, the method for obtaining the actual air pressure value of the subspace and controlling the air pressure control device in the subspace is: Based on the air pressure sensor in the subspace, obtaining the actual air pressure value of the subspace; Based on the actual air pressure value, the air intake and / or air outlet of the air purification device in the subspace is controlled.

[0013] Another object of an embodiment of the present application is to provide an air purification control system, which, when running, executes the steps of the air purification method as described above.

[0014] An air purification method provided in an embodiment of the present application has the outstanding advantage that, compared with the traditional air purification control system which can only perform internal circulation purification inside the room, the present method digitally models the building as a whole, and then obtains its digital model. On this basis, by performing separate air pressure control on each subspace inside the building, the total circulation of airflow inside the entire building can be achieved. Without the aid of other air circulation convection equipment, the airflow can flow from the high-pressure space to the low-pressure space on its own, and the preset air pressure of the subspace can be conveniently defined and controlled, thereby improving the overall purification effect of the building and reducing the cost level and energy consumption value of the entire purification system, and is therefore more conducive to promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 An application environment diagram of an air purification method provided in an embodiment of the present application; Figure 2 A flow chart of an air purification method provided in an embodiment of the present application; Figure 3 FIG. 4 is a block diagram of the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, a first script may be referred to as a second script, and similarly, a second script may be referred to as a first script without departing from the scope of this application.

[0018] Figure 1 An application environment diagram of an air purification method provided in an embodiment of the present application, such as Figure 1 As shown, in the application environment, a terminal 110 and a computer device 120 are included.

[0019] The computer device 120 may be an independent physical server or terminal, or a server cluster composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud servers, cloud databases, cloud storage, and CDN, etc. It may also be a tablet computer, a laptop computer, a desktop computer, etc.

[0020] The terminal 110 may be an air purifier, a fresh air blower, a sterilizing air circulation device, etc., which has the function of inputting or outputting airflow into a space, but is not limited thereto. The terminal 110 and the computer device 120 may be connected via a network, and the terminal 110 may output airflow from the main air duct to the room or input airflow from the room to the return air duct of the main ventilation duct under the control of the computer device 120, and this application does not limit this.

[0021] like Figure 2 As shown, in one embodiment, an air purification method is proposed. This embodiment mainly applies the method to the above Figure 1 An air purification method may include the following steps: Step S10: acquiring a digital building model based on the building layout, wherein the digital building model includes a plurality of independent subspaces, each of which represents a relatively independent room unit inside the building.

[0022] In the embodiment of the present application, the digital model of the building is constructed based on the physical structure of the building. The subspace inside the building refers to each relatively independent space in the building. A closed building is often composed of interconnected spaces such as corridors, stairwells, halls, and terminal independent rooms such as rooms. Each of these passages, rooms, etc. can be used as a subspace. The above subspaces are interconnected to form a tree-like "branch-leaf" interconnected structure. Due to the different air pressures in each subspace, the airflow can form an overall flow path therein.

[0023] Step S20: Based on the purification strategy, construct an air pressure level matrix of the building under the corresponding strategy.

[0024] P=[{p}_{1}+{p}_{2}+...+{p}_{m}] ; in, is greater than 0 and not greater than integer, is greater than 0 and not greater than integer, is the air pressure level matrix of the building, is the air pressure level table for each subspace in the building, The preset air pressure values ​​corresponding to different numbers of people in the subspace; is the maximum number of people that can be carried in the subspace.

[0025] In this embodiment, is the number of subspaces, It can be set in a matrix form. The first column, the second column, the third column, etc. represent the number of people in the subspace as 0, 1, 2, etc., respectively. Different preset air pressure values ​​are set based on the number of people in the subspace. For example, the higher the number of people, the higher the air pressure value, the faster the airflow rate, and thus improve the purification efficiency.

[0026] Step S30, obtaining the number of people in the subspace, and obtaining the target air pressure value of each subspace based on the number of people and the air pressure level matrix.

[0027] In this embodiment, the target air pressure value can be obtained by looking up a table based on the corresponding matrix of the actual number of people in each subspace.

[0028] Step S40, obtaining the actual air pressure value of the subspace, and controlling the air pressure control device in the subspace so that the actual air pressure value of the subspace is matched with the target air pressure value.

[0029] In the embodiment of the present application, for large places, air purification depends on the air circulation system, and the main function of the air circulation system is to make the indoor air flow and circulate continuously. This helps to bring fresh air into the room while exhausting or filtering out polluted air. Modern air circulation systems are equipped with high-efficiency filters such as HEPA (high-efficiency particulate air filter) and MERV (minimum efficiency reporting value) grade filters. These filters can capture pollutants such as particles, dust, pollen, bacteria and viruses in the air. Through these filtering devices, the purification system can purify the air.

[0030] There are many types of buildings. For example, commercial buildings: such as shopping malls, office buildings, airports, etc., the air circulation system must not only ensure air quality, but also meet the temperature and humidity requirements of different areas. Medical places: such as hospitals, the air purification control system needs to pay special attention to the direction of airflow to avoid cross infection. Industrial places: such as factory workshops, there may be harmful gases or dust, and the air circulation system needs special design to ensure the safety of workers. Different air purification strategies need to be responded to due to different building types. Existing technologies often require separate air purification equipment for separate rooms to purify the air inside the room. Therefore, its cost is often high and the configuration strategy is fixed.

[0031] An air purification method is provided in the embodiment of the present application. Through this method, the building is taken as a whole and digitally modeled to obtain its digital model. On this basis, the total circulation of airflow inside the entire building can be achieved by individually controlling the air pressure of each subspace inside the building. Without the aid of other air circulation convection equipment, the airflow can flow from the high-pressure space to the low-pressure space on its own, and the preset air pressure of the subspace can be conveniently defined and controlled, thereby improving the overall purification effect of the building and reducing the cost level and energy consumption value of the entire purification system, which is more conducive to promotion and use.

[0032] In a preferred embodiment, based on the purification strategy, the method for constructing the air pressure hierarchy matrix of the building under the corresponding strategy is: The purification strategy includes a time segmentation strategy, which divides a day into a number of planned time periods, and constructs a different air pressure level matrix in each planned time period.

[0033] In the embodiment of the present application, there are multiple purification strategies that can be preset, such as a preset time segment strategy. Under this strategy, a day is divided into several time periods, and different air pressure level matrices are executed in different time periods.

[0034] In one embodiment, a day is divided into three time periods, namely, rest period: 0-8 o'clock, working period: 8-18 o'clock, and energy-saving period: 18-24 o'clock. In the time period from 18 o'clock to 24 o'clock, a preset air pressure level matrix that reduces the difference in preset air pressure values ​​in each room is selected to save energy. In the time period from 0 to 8 o'clock, the air pressure control of some subspaces can be turned off to the default state. For example, an air pressure level matrix with a pressure difference of 0 in different subspaces is selected to further save energy. In the working period from 8 to 18 o'clock, a matrix that increases the pressure difference between different rooms is selected to increase the air flow speed, thereby increasing the air purification rate.

[0035] In a preferred embodiment, the pressure level of the subspace is The method to obtain is: Obtain the attribute type of the room unit in the building, wherein the attribute type includes at least a connected space, a normally low-pressure space, a normally high-pressure space, and a linkage space, and each attribute type of the room unit has a preset hierarchy table for air pressure; obtain the attribute type of each subspace; and obtain the air pressure hierarchy table of each subspace based on the correspondence between the attribute type of the subspace and the attribute type of the room unit.

[0036] In an embodiment of the present application, in order to further improve the safety of the overall airflow in the space and the characteristics of the building. For example, in an industrial environment, it is necessary to set the space where dust is generated as a normally low-pressure space. For example, the air purification equipment is used to extract air from the room, and the dust in the normally low-pressure space will not spread. The linkage space, such as the warehouse space, only needs to have basic ventilation, and there is no need to perform additional air pressure control on it to reduce energy consumption. For example, the clean room in the hospital can be made into a high-pressure space because of its high cleanliness, no harmful substances are produced, and no external airflow can flow into it. Through free configuration, flexible definition and modification of subspace air pressure can be achieved.

[0037] In a preferred embodiment, the relationship between the air pressure values ​​of the interconnected space, the normally low-pressure space, the normally high-pressure space and the linked space is: The air pressure value of the connected space is equal to the reference air pressure; The air pressure value of the normally low-pressure space is lower than the reference air pressure; The air pressure value of the normally high pressure space is higher than the reference air pressure; The air pressure value of the linkage space is equal to the average of the air pressure values ​​of all subspaces connected thereto.

[0038] In the embodiment of the present application, the reference air pressure can be set to the air pressure in the hall, corridor, etc. The air pressure of the linkage space does not need to be set additionally. For example, the value in the matrix can be set to / null to be empty, so that it can be linked to the air pressure value of the surrounding subspace.

[0039] In a preferred embodiment, the air purification method further comprises: Based on the particle sensor in the subspace, the pollutant content in the subspace is collected to obtain the particle content; When the particle content exceeds a threshold, the attribute type of the subspace is obtained; If the attribute type of the subspace is a normally high pressure space, then the target air pressure value of the subspace is increased; If the attribute type of the subspace is a normally low-pressure space, the target air pressure value of the subspace is lowered.

[0040] In this embodiment, the environmental impact of particulate matter in the room on the entire subspace is further considered. When the pollutants suddenly change, the purification level of the room is adjusted in real time based on the pollutant sensor to respond to the change in time. The air pressure of the low-pressure room continues to decrease, and the air pressure value of the high-pressure room is increased to speed up the exhaust speed.

[0041] In a preferred embodiment, the method for obtaining the number of people in the subspace is: Based on the infrared sensor, the number of heat source signals in the subspace is judged to obtain the number of heat sources; Based on the number of heat sources, the number of people in the subspace is obtained.

[0042] In the embodiment of the present application, the number of people in the subspace can be obtained based on infrared sensors, etc., and the corresponding preset air pressure level can be automatically executed.

[0043] In a preferred embodiment, the method for obtaining the actual air pressure value of the subspace and controlling the air pressure control device in the subspace is: Based on the air pressure sensor in the subspace, obtaining the actual air pressure value of the subspace; Based on the actual air pressure value, the air intake and / or air outlet of the air purification device in the subspace is controlled.

[0044] In the embodiment of the present application, this solution can be used to directly control the rotation speed of equipment such as a compressor, thereby changing the ambient air pressure value.

[0045] In one embodiment, an air purification control system is provided. When the system is running, the system performs the steps of the air purification method as described above.

[0046] In the embodiment of the present application, the system may be a computer software or program system, which runs in hardware containing a processing device, and when the system is running, the corresponding method is executed. For the description of the air purification method, please refer to the above, which will not be repeated here.

[0047] In the embodiment of the present application, based on this system, compared with the traditional air purification control system that can only perform internal circulation purification inside the room, this method takes the building as a whole, digitally models it, and then obtains its digital model. On this basis, by performing separate air pressure control on each subspace inside the building, the total circulation of airflow inside the entire building can be achieved. Without the aid of other air circulation convection equipment, the airflow can flow from the high-pressure space to the low-pressure space on its own, and the preset air pressure of the subspace can be conveniently defined and controlled, which improves the overall purification effect of the building and reduces the cost level and energy consumption value of the entire purification system, and is therefore more conducive to promotion and use.

[0048] Figure 3 The internal structure diagram of a computer device in one embodiment is shown. The computer device may specifically be Figure 1 The computer device 120 in FIG. 3 . As shown in FIG. 3 , the computer device includes a processor, a memory, a network interface, an input device, and a display screen connected via a system bus. Among them, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may also store a computer program, which, when executed by the processor, enables the processor to implement the air purification method. The internal memory may also store a computer program, which, when executed by the processor, enables the processor to execute the air purification method. The display screen of the computer device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device may be a touch layer covered on the display screen, or a button, trackball, or touchpad provided on the housing of the computer device, or an external keyboard, touchpad, or mouse, etc.

[0049] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0050] It should be understood that, although each step in the flow chart of each embodiment of the present application is shown in sequence according to the indication of the arrow, these steps are not necessarily performed in sequence according to the order indicated by the arrow. Unless there is clear explanation in this article, the execution of these steps does not have strict order restriction, and these steps can be performed in other orders. Moreover, at least a portion of the steps in each embodiment may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these sub-steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0051] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An air purification method, characterized in that: The method comprises: Based on the building layout, a building digital model is obtained, wherein the building digital model includes a plurality of independent subspaces, each of which represents a relatively independent room unit inside the building; Based on the purification strategy, the air pressure level matrix of the building under the corresponding strategy is constructed: ； in, is greater than 0 and not greater than integer, is greater than 0 and not greater than integer, is the air pressure level matrix of the building, is the air pressure level table for each subspace in the building, The preset air pressure values ​​corresponding to different numbers of people in the subspace; Obtaining the number of people in the subspace, and obtaining a target air pressure value for each subspace based on the number of people and the air pressure level matrix; The actual air pressure value of the subspace is obtained, and the air pressure control device in the subspace is controlled to make the actual air pressure value of the subspace fit the target air pressure value.

2. An air purification method according to claim 1, characterized in that: Based on the purification strategy, the method of constructing the air pressure hierarchy matrix of the building under the corresponding strategy is: The purification strategy includes a time segmentation strategy, which divides a day into a number of planned time periods, and constructs a different air pressure level matrix in each planned time period.

3. An air purification method according to claim 1, characterized in that: Subspace pressure level table The method to obtain is: Acquire the attribute type of the room unit in the building, wherein the attribute type at least includes a connected space, a normally low-pressure space, a normally high-pressure space, and a linkage space, and each attribute type of the room unit has a preset hierarchical table for air pressure; Get the attribute type of each subspace; Based on the correspondence between the attribute type of the subspace and the attribute type of the room unit, the air pressure level table of each subspace is obtained.

4. An air purification method according to claim 3, characterized in that: The relationship between the air pressure values ​​of the interconnected space, the normally low-pressure space, the normally high-pressure space and the linked space is: The air pressure value of the connected space is equal to the reference air pressure; The air pressure value of the normally low-pressure space is lower than the reference air pressure; The air pressure value of the normally high pressure space is higher than the reference air pressure; The air pressure value of the linkage space is equal to the average of the air pressure values ​​of all subspaces connected thereto.

5. An air purification method according to claim 3, characterized in that: The air purification method also includes: Based on the particle sensor in the subspace, the pollutant content in the subspace is collected to obtain the particle content; When the particle content exceeds a threshold, the attribute type of the subspace is obtained; If the attribute type of the subspace is a normally high pressure space, then the target air pressure value of the subspace is increased; If the attribute type of the subspace is a normally low-pressure space, the target air pressure value of the subspace is lowered.

6. An air purification method according to claim 1, characterized in that: The method to obtain the number of people in the subspace is: Based on the infrared sensor, the number of heat source signals in the subspace is judged to obtain the number of heat sources; Based on the number of heat sources, the number of people in the subspace is obtained.

7. An air purification method according to claim 1, characterized in that: The method for obtaining the actual air pressure value of the subspace and controlling the air pressure control device in the subspace is: Based on the air pressure sensor in the subspace, obtaining the actual air pressure value of the subspace; Based on the actual air pressure value, the air intake and / or air outlet of the air purification device in the subspace is controlled.

8. An air purification control system, characterized in that: When the system is in operation, the steps of the air purification method according to any one of claims 1 to 7 are performed.

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