An indoor microbial pollution analysis method and system based on an improved exposure risk method

Abstract

The application discloses an indoor microorganism pollution analysis method and system based on an improved exposure risk method, and the method comprises the following steps: comparing at least one first pollutant information with corresponding at least one second pollutant information based on position areas to obtain distinguished pollutant information, and determining a pollution path in the indoor environment according to the distinguished pollutant information; calculating a first exposure amount of at least one person in the pollution path and a second exposure amount of at least one person in other paths according to a first time period and a second time period respectively; calculating a first difference value between the first exposure amount and a first reference exposure amount and a second difference value between the second exposure amount and a second reference exposure amount; and warning the indoor microorganism pollution degree according to the first exposure amount, the second exposure amount and the first difference value and the second difference value. The pollution degree of each position area in the indoor environment can be effectively dynamically analyzed, so that the indoor state can be more accurately warned after the fresh air system is started.

Description

Technical Field

[0001] This invention belongs to the field of indoor pollution analysis technology, and particularly relates to an indoor microbial pollution analysis method and system based on an improved exposure risk method. Background Technology

[0002] The health hazards of air pollutants are closely related to exposure concentration and duration. Current exposure risk assessments evaluate the concentration, frequency, duration, and pathways of pollutants in the ambient air to which humans are exposed. This accurately estimates the exposure amount and characteristics of a particular pollutant, including exposure time, mode, and frequency, and can be used to analyze risk characterization. The assessment method is widely used in risk assessment and epidemiological transmission studies, not only to evaluate the current status of pollutants but also to predict their development trends. Applying the assessment method to indoor microbial pollution assessment enables people to take proactive preventative measures to ensure health. The assessment method mainly includes four steps: pollutant identification, exposure pathway determination, exposure amount calculation, and risk assessment.

[0003] However, traditional exposure risk assessments lack consideration for changes in microbial contamination concentrations caused by indoor air circulation and personnel movement within the room, resulting in inaccurate indoor microbial contamination analysis and an inability to provide effective early warnings of indoor environmental conditions. Summary of the Invention

[0004] This invention provides an indoor microbial pollution analysis method and system based on an improved exposure risk method, which solves the technical problem that inaccurate indoor microbial pollution analysis makes it difficult to provide early warning of indoor environmental conditions.

[0005] In a first aspect, the present invention provides a method for analyzing indoor microbial contamination based on an improved exposure risk method, comprising: Acquire at least one first pollutant information for each location area indoors at a first moment, wherein the first moment is any moment within a period of time after the indoor fresh air system is turned on; Acquire at least one second pollutant information for each location area indoors at a second time point, wherein the second time point is any time point within a period of time after the indoor fresh air system is not turned on or after the indoor fresh air system is turned off; Based on the location region, the information of at least one first pollutant is compared with the information of at least one corresponding second pollutant to obtain distinguishable pollutant information, and the indoor pollution path is determined based on the distinguishable pollutant information; When there is at least one person in the contaminated path, obtain a first time period in which the at least one person stays in the contaminated path and a second time period in which the at least one person stays in other paths, wherein the other paths are indoor paths that do not contain the contaminated path; Calculate the first exposure amount of the at least one person in the contamination path and the second exposure amount of the at least one person in the other path based on the first time period and the second time period, respectively. Calculate the first difference between the first exposure and the first baseline exposure and the second difference between the second exposure and the second baseline exposure, wherein the first baseline exposure is calculated based on the concentration of the different pollutant at the start time of the first time period and the first time period, and the second baseline exposure is calculated based on the concentration of the different pollutant at the start time of the second time period and the second time period; The degree of indoor microbial contamination is given an early warning based on the first exposure level, the second exposure level, the first difference, and the second difference.

[0006] Secondly, the present invention provides an indoor microbial contamination analysis system based on an improved exposure risk method, comprising: The first acquisition module is configured to acquire at least one first pollutant information in various indoor locations at a first moment, wherein the first moment is any moment within a period of time after the indoor fresh air system is turned on. The second acquisition module is configured to acquire at least one second pollutant information for each location area indoors at a second time, wherein the second time is any time within a period of time after the indoor fresh air system is not turned on or after the indoor fresh air system is turned off; The comparison module is configured to compare the information of at least one first pollutant with the information of at least one corresponding second pollutant based on the location region to obtain distinguished pollutant information, and determine the indoor pollution path based on the distinguished pollutant information; The third acquisition module is configured to acquire, when there is at least one person in the contaminated path, a first time period in which the at least one person stays in the contaminated path and a second time period in which the at least one person stays in other paths, wherein the other paths are indoor paths that do not contain the contaminated path; The first calculation module is configured to calculate, based on the first time period and the second time period, the first exposure amount of the at least one person in the pollution path and the second exposure amount of the at least one person in the other path, respectively. The second calculation module is configured to calculate a first difference between the first exposure amount and the first baseline exposure amount and a second difference between the second exposure amount and the second baseline exposure amount, wherein the first baseline exposure amount is calculated based on the concentration of the different pollutant at the start time of the first time period and the first time period, and the second baseline exposure amount is calculated based on the concentration of the different pollutant at the start time of the second time period and the second time period. The early warning module is configured to provide an early warning of the degree of indoor microbial contamination based on the first exposure amount, the second exposure amount, the first difference, and the second difference.

[0007] Thirdly, an electronic device is provided, comprising: at least one processor, and a memory communicatively connected to the at least one processor, wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the steps of the indoor microbial contamination analysis method based on the improved exposure risk method according to any embodiment of the present invention.

[0008] Fourthly, the present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein when the program instructions are executed by a processor, the processor performs the steps of the indoor microbial contamination analysis method based on the improved exposure risk method according to any embodiment of the present invention.

[0009] This application discloses an indoor microbial contamination analysis method and system based on an improved exposure risk method. It compares information on at least one first pollutant with information on at least one corresponding second pollutant based on location and region to obtain distinguishing pollutant information, and determines the indoor contamination path based on this information. It calculates the first exposure amount of at least one person in the contamination path and the second exposure amount of at least one person in other paths based on a first time period and a second time period, respectively. It calculates the first difference between the first exposure amount and a first baseline exposure amount, and the second difference between the second exposure amount and a second baseline exposure amount. Based on the first exposure amount, the second exposure amount, and the first and second differences, it provides an early warning of the indoor microbial contamination level. This effectively enables dynamic analysis of the contamination level in various indoor locations, facilitating more accurate early warning of the indoor status after the fresh air system is activated. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 A flowchart illustrating an indoor microbial contamination analysis method based on an improved exposure risk approach, as provided in an embodiment of the present invention; Figure 2 A structural block diagram of an indoor microbial contamination analysis system based on an improved exposure risk method is provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0012] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate several embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0014] To illustrate the technical solution described in this application, specific embodiments are provided below.

[0015] Please see Figure 1 The diagram shows a flowchart of an indoor microbial contamination analysis method based on an improved exposure risk method according to an embodiment of this application, which is described in detail below: like Figure 1 As shown, step S101: Obtain at least one first pollutant information for each location area indoors at a first moment, wherein the first moment is any moment within a period of time after the indoor fresh air system is turned on.

[0016] For example, environmental monitoring parameters for various indoor locations at a first moment are obtained, including but not limited to the living room, bedroom, kitchen, and bathroom.

[0017] Step S102: Obtain at least one second pollutant information for each location area indoors at a second time, wherein the second time is any time within a period of time after the indoor fresh air system is not turned on or after the indoor fresh air system is turned off.

[0018] For example, environmental monitoring parameters for various indoor locations at a second time point are obtained, including but not limited to the living room, bedroom, kitchen, and bathroom.

[0019] Step S103: Based on the location area, compare the information of at least one first pollutant with the corresponding information of at least one second pollutant to obtain distinguishable pollutant information, and determine the indoor pollution path based on the distinguishable pollutant information.

[0020] In this step, at least one first pollutant information includes the concentration of at least one first pollutant, and at least one second pollutant information includes the concentration of at least one second pollutant.

[0021] The concentration of at least one first pollutant in the same location area is subtracted from the concentration of at least one second pollutant; based on the difference result, a first pollutant with a concentration difference greater than a preset threshold is identified as a distinguishing pollutant, and the information of the first pollutant is used as distinguishing pollutant information, which includes the type of the first pollutant and the concentration of the first pollutant.

[0022] For example, the first concentration of microbial aerosols in the living room is obtained at the first moment, and the second concentration of microbial aerosols is obtained at the second moment when the fresh air system (air conditioner) is turned on in the living room. The difference between the second concentration and the first concentration is calculated, and microbial aerosols with a concentration difference greater than a preset threshold are used as distinguishing pollutants.

[0023] It should be noted that the specific steps for determining indoor pollution pathways based on pollutant information are as follows: The concentration of different pollutants in various indoor locations is obtained, and the locations of different pollutants with concentrations greater than a preset concentration threshold are selected and defined as the central location area. Determine whether the concentration change of a different pollutant in a location adjacent to the central location area is greater than a preset change threshold; if so, the location area is not the central location area. If the change exceeds the preset threshold, the line connecting a certain location area and the central location area will be defined as the indoor pollution path. If the change is not greater than the preset change threshold, the line connecting at least two adjacent central location areas will be defined as the indoor pollution path, or only one central location area will be defined as the indoor pollution path.

[0024] For example, in an interior structure with three bedrooms, two living rooms, two bathrooms, and one kitchen, if the first living room is the central location, and assuming that the concentration change of the distinguishing pollutants in the adjacent living room is greater than a preset change threshold, it means that the first living room is connected to the living room. As the air flows, the concentration change of the distinguishing pollutants in the living room is greater than the preset change threshold. Thus, the line connecting the first living room and the living room is defined as the indoor pollution path.

[0025] Furthermore, when both the first and second living rooms are centrally located areas, assuming that the concentration changes of different pollutants in the adjacent living room do not exceed a preset threshold, it indicates that the first and second living rooms are not connected to the living room. Therefore, the first and second living rooms are defined as two separate pollution pathways within the room.

[0026] Step S104: When there is at least one person in the contaminated path, obtain the first time period during which the at least one person stays in the contaminated path and the second time period during which the at least one person stays in other paths, wherein the other paths are indoor paths that do not contain the contaminated path.

[0027] In this step, when there is at least one person in the contaminated path, the first time period during which at least one person stayed in the contaminated path and the second time period during which at least one person stayed in other paths are obtained.

[0028] It should be noted that the first time period and / or the second time period can be a continuous period of time or a period of time formed by adding different time periods together; no limitation is made here.

[0029] Specifically, when there are no people in the contamination path, there will be no impact on air circulation caused by people moving from the contamination path to other paths. Therefore, it is possible to adopt, but not limited to, directly obtain the first exposure amount and the second exposure amount, and issue early warnings for the contamination path and other paths based on the first exposure amount and the second exposure amount respectively.

[0030] Step S105: Calculate the first exposure amount of the at least one person in the contamination path and the second exposure amount of the at least one person in the other path based on the first time period and the second time period, respectively.

[0031] In this step, the first average concentration of the distinguishing pollutants in the first time period and the second average concentration of the distinguishing pollutants in the second time period are obtained; the first exposure of at least one person in the pollution path is calculated based on the duration of the first time period and the first average concentration, and the second exposure of at least one person in the pollution path is calculated based on the duration of the second time period and the second average concentration, wherein the expression for calculating the first exposure is: , In the formula, The first exposure level, The first average concentration of the distinguishing pollutants in the first time period. For the person's breathing rate, For the frequency of exposure of personnel, The exposure duration, i.e., the duration of the first time period, For the weight of the person, For the average exposure duration, .

[0032] It should be noted that the expression for calculating the second exposure is similar to that for the first exposure, and will not be elaborated further here.

[0033] Specifically, the methods for obtaining the first average concentration of the distinguishing pollutants in the first time period and the second average concentration of the distinguishing pollutants in the second time period can be, but are not limited to: obtaining the concentration of the distinguishing pollutants at the beginning and end of the first time period, and averaging the concentrations at the beginning and end of the first time period to obtain the first average concentration. The method for obtaining the second average concentration is similar to that for obtaining the first average concentration, and will not be elaborated further here.

[0034] Step S106: Calculate the first difference between the first exposure amount and the first baseline exposure amount and the second difference between the second exposure amount and the second baseline exposure amount, wherein the first baseline exposure amount is calculated based on the concentration of the different pollutant at the start time of the first time period and the first time period, and the second baseline exposure amount is calculated based on the concentration of the different pollutant at the start time of the second time period and the second time period.

[0035] In this step, the expression for calculating the first baseline exposure is: , In the formula, The first baseline exposure level, The concentrations of the pollutants at the beginning of the first time period are distinguished. For the person's breathing rate, For the frequency of exposure of personnel, The exposure duration, i.e., the duration of the first time period, For the weight of the person, For the average exposure duration, .

[0036] Specifically, a person's breathing rate can be obtained by referring to the table below.

[0037] .

[0038] It should be noted that the expression for calculating the second baseline exposure is similar to that for the first baseline exposure, and will not be elaborated further here.

[0039] The first and second baseline exposure values ​​are based on scenarios that do not consider the impact of natural indoor air circulation or air circulation caused by people moving around on the exposure value. By calculating the first difference between the first exposure value and the first baseline exposure value, and the second difference between the second exposure value and the second baseline exposure value, the pollution level of various locations in the room can be dynamically analyzed, which facilitates more accurate early warning of the indoor status after the fresh air system is started.

[0040] Step S107: Provide an early warning of the degree of indoor microbial contamination based on the first exposure amount, the second exposure amount, the first difference, and the second difference.

[0041] In this step, a first warning signal for a contaminated path is generated based on the first exposure level; the first difference is subtracted from the second difference to obtain a third difference, and it is determined whether the magnitude of the third difference is greater than a preset value; if the magnitude of the third difference is not greater than the preset value, a second warning signal for another path is generated based on the second exposure level; if the magnitude of the third difference is greater than the preset value, a third warning signal for another path is generated based on the second exposure level, wherein the priority of the third warning signal is lower than that of the second warning signal and the first warning signal in sequence.

[0042] For example, an alarm message indicating excessively high concentration of microbial aerosols in the currently defined contaminated path is sent to the user terminal. If the third difference is not greater than a preset value, it indicates that the microbial aerosols in the contaminated path are expanding to other paths, which may lead to a continuous increase in the concentration of microbial aerosols in other paths. In this case, a prompt message indicating an increase in the concentration of microbial aerosols in other paths is sent to the user terminal. If the third difference is greater than a preset value, it indicates that the microbial aerosols in the contaminated path are expanding outdoors, which may lead to the concentration of microbial aerosols in other paths not increasing or decreasing. In this case, monitoring information on the concentration of microbial aerosols in other paths is sent to the user terminal.

[0043] In summary, the method of this application compares at least one first pollutant information with at least one corresponding second pollutant information based on location area to obtain distinguishable pollutant information, and determines the indoor pollution path based on the distinguishable pollutant information; calculates the first exposure amount of at least one person in the pollution path and the second exposure amount of at least one person in other paths based on a first time period and a second time period respectively; calculates the first difference between the first exposure amount and the first baseline exposure amount and the second difference between the second exposure amount and the second baseline exposure amount; and provides early warning of the indoor microbial pollution level based on the first exposure amount, the second exposure amount, the first difference, and the second difference. This method can effectively perform dynamic analysis of the pollution level in various locations and areas of the room, thereby facilitating more accurate early warning of the indoor status after the fresh air system is started.

[0044] Please see Figure 2 The diagram shown is a structural diagram of an indoor microbial contamination analysis system based on an improved exposure risk method according to an embodiment of this application, which is described in detail below: like Figure 2 As shown, the indoor microbial pollution analysis system 200 includes a first acquisition module 210, a second acquisition module 220, a comparison module 230, a third acquisition module 240, a first calculation module 250, a second calculation module 260, and an early warning module 270.

[0045] The system includes a first acquisition module 210 configured to acquire at least one first pollutant information for each location area indoors at a first moment, wherein the first moment is any moment within a period of time after the indoor fresh air system is turned on; a second acquisition module 220 configured to acquire at least one second pollutant information for each location area indoors at a second moment, wherein the second moment is any moment within a period of time after the indoor fresh air system is not turned on or after the indoor fresh air system is turned off; a comparison module 230 configured to compare the at least one first pollutant information with the corresponding at least one second pollutant information based on the location area to obtain distinguishing pollutant information, and determine the indoor pollution path based on the distinguishing pollutant information; and a third acquisition module 240 configured to, when there is at least one person in the pollution path, acquire the first time period during which the at least one person stayed in the pollution path and the time period during which the at least one person stayed in other paths. The second time period is defined as follows: the other paths are indoor paths that do not contain the contaminated path; the first calculation module 250 is configured to calculate the first exposure amount of the at least one person in the contaminated path and the second exposure amount of the at least one person in the other paths based on the first time period and the second time period, respectively; the second calculation module 260 is configured to calculate the first difference between the first exposure amount and the first baseline exposure amount and the second difference between the second exposure amount and the second baseline exposure amount, wherein the first baseline exposure amount is calculated based on the concentration of the distinguishing pollutant at the beginning of the first time period and the first time period, and the second baseline exposure amount is calculated based on the concentration of the distinguishing pollutant at the beginning of the second time period and the second time period; the early warning module 270 is configured to issue an early warning for the degree of indoor microbial contamination based on the first exposure amount, the second exposure amount, the first difference, and the second difference.

[0046] It should be understood that Figure 2 The modules and references described in the document Figure 1 The steps described in the text correspond to those in the method described above. Therefore, the operations, features, and corresponding technical effects described above also apply to the method described in the text. Figure 2 The various modules in the document will not be described in detail here.

[0047] In other embodiments, the present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein when the program instructions are executed by a processor, the processor performs the indoor microbial contamination analysis method based on the improved exposure risk method in any of the above method embodiments. In one embodiment, the computer-readable storage medium of the present invention stores computer-executable instructions, which are configured as follows: Acquire at least one first pollutant information for each location area indoors at a first moment, wherein the first moment is any moment within a period of time after the indoor fresh air system is turned on; Acquire at least one second pollutant information for each location area indoors at a second time point, wherein the second time point is any time point within a period of time after the indoor fresh air system is not turned on or after the indoor fresh air system is turned off; Based on the location region, the information of at least one first pollutant is compared with the information of at least one corresponding second pollutant to obtain distinguishable pollutant information, and the indoor pollution path is determined based on the distinguishable pollutant information; When there is at least one person in the contaminated path, obtain a first time period in which the at least one person stays in the contaminated path and a second time period in which the at least one person stays in other paths, wherein the other paths are indoor paths that do not contain the contaminated path; Calculate the first exposure amount of the at least one person in the contamination path and the second exposure amount of the at least one person in the other path based on the first time period and the second time period, respectively. Calculate the first difference between the first exposure and the first baseline exposure and the second difference between the second exposure and the second baseline exposure, wherein the first baseline exposure is calculated based on the concentration of the different pollutant at the start time of the first time period and the first time period, and the second baseline exposure is calculated based on the concentration of the different pollutant at the start time of the second time period and the second time period; The degree of indoor microbial contamination is given an early warning based on the first exposure level, the second exposure level, the first difference, and the second difference.

[0048] Computer-readable storage media may include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required for at least one function, and the stored data area may store data created based on the use of the indoor microbial contamination analysis system based on the improved exposure risk method. Furthermore, the computer-readable storage medium may include high-speed random access memory and may also include memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, the computer-readable storage medium may optionally include memory remotely configured relative to a processor, which can be connected to the indoor microbial contamination analysis system based on the improved exposure risk method via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0049] Figure 3 This is a schematic diagram of the structure of the electronic device provided in the embodiment of the present invention, such as... Figure 3 As shown, the device includes a processor 310 and a memory 320. The electronic device may also include an input device 330 and an output device 340. The processor 310, memory 320, input device 330, and output device 340 can be connected via a bus or other means. Figure 3 Taking a bus connection as an example, the memory 320 is the computer-readable storage medium described above. The processor 310 executes various server functions and data processing by running non-volatile software programs, instructions, and modules stored in the memory 320, thereby implementing the indoor microbial contamination analysis method based on the improved exposure risk method described in the above embodiment. The input device 330 can receive input digital or character information and generate key signal inputs related to user settings and function control of the indoor microbial contamination analysis system based on the improved exposure risk method. The output device 340 may include a display screen or other display device.

[0050] The aforementioned electronic device can execute the method provided in the embodiments of the present invention, and has the corresponding functional modules and beneficial effects for executing the method. Technical details not described in detail in this embodiment can be found in the method provided in the embodiments of the present invention.

[0051] In one implementation, the aforementioned electronic device is used in an indoor microbial contamination analysis system based on a modified exposure risk method, for a client application, and includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to: Acquire at least one first pollutant information for each location area indoors at a first moment, wherein the first moment is any moment within a period of time after the indoor fresh air system is turned on; Acquire at least one second pollutant information for each location area indoors at a second time point, wherein the second time point is any time point within a period of time after the indoor fresh air system is not turned on or after the indoor fresh air system is turned off; Based on the location region, the information of at least one first pollutant is compared with the information of at least one corresponding second pollutant to obtain distinguishable pollutant information, and the indoor pollution path is determined based on the distinguishable pollutant information; When there is at least one person in the contaminated path, obtain a first time period in which the at least one person stays in the contaminated path and a second time period in which the at least one person stays in other paths, wherein the other paths are indoor paths that do not contain the contaminated path; Calculate the first exposure amount of the at least one person in the contamination path and the second exposure amount of the at least one person in the other path based on the first time period and the second time period, respectively. Calculate the first difference between the first exposure and the first baseline exposure and the second difference between the second exposure and the second baseline exposure, wherein the first baseline exposure is calculated based on the concentration of the different pollutant at the start time of the first time period and the first time period, and the second baseline exposure is calculated based on the concentration of the different pollutant at the start time of the second time period and the second time period; The degree of indoor microbial contamination is given an early warning based on the first exposure level, the second exposure level, the first difference, and the second difference.

[0052] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of the embodiments. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for analyzing indoor microbial contamination based on an improved exposure risk method, characterized in that, include: Acquire at least one first pollutant information for each location area indoors at a first moment, wherein the first moment is any moment within a period of time after the indoor fresh air system is turned on; Acquire at least one second pollutant information for each location area indoors at a second time point, wherein the second time point is any time point within a period of time after the indoor fresh air system is not turned on or after the indoor fresh air system is turned off; Based on the location region, the information of at least one first pollutant is compared with the corresponding information of at least one second pollutant to obtain distinguishable pollutant information, and the indoor pollution path is determined based on the distinguishable pollutant information, wherein determining the indoor pollution path based on the distinguishable pollutant information includes: The concentration of different pollutants in various indoor locations is obtained, and the locations of different pollutants with concentrations greater than a preset concentration threshold are selected and defined as the central location area. Determine whether the concentration change of a distinguishing pollutant in a location adjacent to the central location region is greater than a preset change threshold; if so, the location region is not the central location region. If the change exceeds a preset threshold, the line connecting the certain location area and the central location area is defined as the indoor pollution path. If the change is not greater than the preset change threshold, the line connecting at least two adjacent central location areas will be defined as the indoor pollution path, or only one central location area will be defined as the indoor pollution path. When there is at least one person in the contaminated path, obtain a first time period in which the at least one person stays in the contaminated path and a second time period in which the at least one person stays in other paths, wherein the other paths are indoor paths that do not contain the contaminated path; Calculate the first exposure amount of the at least one person in the contamination path and the second exposure amount of the at least one person in the other path based on the first time period and the second time period, respectively. Calculate the first difference between the first exposure and the first baseline exposure and the second difference between the second exposure and the second baseline exposure, wherein the first baseline exposure is calculated based on the concentration of the different pollutant at the start time of the first time period and the first time period, and the second baseline exposure is calculated based on the concentration of the different pollutant at the start time of the second time period and the second time period; The degree of indoor microbial contamination is given an early warning based on the first exposure level, the second exposure level, the first difference, and the second difference.

2. The indoor microbial contamination analysis method based on the improved exposure risk method according to claim 1, characterized in that, The at least one first pollutant information includes the concentration of at least one first pollutant, and the at least one second pollutant information includes the concentration of at least one second pollutant; The step of comparing the at least one first pollutant information with the corresponding at least one second pollutant information based on the location region to obtain distinguishable pollutant information includes: The concentration of at least one first pollutant in the same location area is subtracted from the concentration of at least one second pollutant. Based on the difference results, a first pollutant with a concentration difference greater than a preset threshold is identified as a distinguishing pollutant, and the information of the first pollutant is used as distinguishing pollutant information, including the type and concentration of the first pollutant.

3. The indoor microbial contamination analysis method based on the improved exposure risk method according to claim 1, characterized in that, The step of calculating the first exposure amount of the at least one person in the contamination path and the second exposure amount of the at least one person in the other path based on the first time period and the second time period respectively includes: Obtain the first average concentration of the distinguishing pollutants in the first time period and the second average concentration of the distinguishing pollutants in the second time period; The first exposure amount of the at least one person in the pollution path is calculated based on the duration of the first time period and the first average concentration, and the second exposure amount of the at least one person in the pollution path is calculated based on the duration of the second time period and the second average concentration, wherein the expression for calculating the first exposure amount is: ， In the formula, The first exposure level, The first average concentration of the distinguishing pollutants in the first time period. For the person's breathing rate, For the frequency of exposure of personnel, The exposure duration, i.e., the duration of the first time period, For the weight of the person, For the average exposure duration, .

4. The indoor microbial contamination analysis method based on the improved exposure risk method according to claim 1, characterized in that, The expression for calculating the first baseline exposure is: ， In the formula, The first baseline exposure level, The concentrations of the pollutants at the beginning of the first time period are distinguished. For the person's breathing rate, For the frequency of exposure of personnel, The exposure duration, i.e., the duration of the first time period, For the weight of the person, For the average exposure duration, .

5. The indoor microbial contamination analysis method based on the improved exposure risk method according to claim 1, characterized in that, The method of providing early warning of indoor microbial contamination levels based on the first exposure level, the second exposure level, the first difference, and the second difference includes: A first warning signal for the pollution path is generated based on the first exposure level; The first difference is subtracted from the second difference to obtain a third difference, and it is determined whether the magnitude of the third difference is greater than a preset value. If the magnitude of the third difference is not greater than a preset value, then a second warning signal for other paths is generated based on the second exposure amount; If the magnitude of the third difference is greater than a preset value, then a third warning signal for other paths is generated based on the second exposure amount, wherein the priority of the third warning signal is lower than that of the second warning signal and the first warning signal.

6. An indoor microbial contamination analysis system based on an improved exposure risk method, characterized in that, include: The first acquisition module is configured to acquire at least one first pollutant information in various indoor locations at a first moment, wherein the first moment is any moment within a period of time after the indoor fresh air system is turned on. The second acquisition module is configured to acquire at least one second pollutant information for each location area indoors at a second time, wherein the second time is any time within a period of time after the indoor fresh air system is not turned on or after the indoor fresh air system is turned off; The comparison module is configured to compare the information of at least one first pollutant with the corresponding information of at least one second pollutant based on a location region to obtain distinguishable pollutant information, and to determine the indoor pollution path based on the distinguishable pollutant information, wherein determining the indoor pollution path based on the distinguishable pollutant information includes: The concentration of different pollutants in various indoor locations is obtained, and the locations of different pollutants with concentrations greater than a preset concentration threshold are selected and defined as the central location area. Determine whether the concentration change of a distinguishing pollutant in a location adjacent to the central location region is greater than a preset change threshold; if so, the location region is not the central location region. If the change exceeds a preset threshold, the line connecting the certain location area and the central location area is defined as the indoor pollution path. If the change is not greater than the preset change threshold, the line connecting at least two adjacent central location areas will be defined as the indoor pollution path, or only one central location area will be defined as the indoor pollution path. The third acquisition module is configured to acquire, when there is at least one person in the contaminated path, a first time period in which the at least one person stays in the contaminated path and a second time period in which the at least one person stays in other paths, wherein the other paths are indoor paths that do not contain the contaminated path; The first calculation module is configured to calculate, based on the first time period and the second time period, the first exposure amount of the at least one person in the pollution path and the second exposure amount of the at least one person in the other path, respectively. The second calculation module is configured to calculate a first difference between the first exposure amount and the first baseline exposure amount and a second difference between the second exposure amount and the second baseline exposure amount, wherein the first baseline exposure amount is calculated based on the concentration of the different pollutant at the start time of the first time period and the first time period, and the second baseline exposure amount is calculated based on the concentration of the different pollutant at the start time of the second time period and the second time period. The early warning module is configured to provide an early warning of the degree of indoor microbial contamination based on the first exposure amount, the second exposure amount, the first difference, and the second difference.

7. An electronic device, characterized in that, include: At least one processor, and a memory communicatively connected to the at least one processor, wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method described in any one of claims 1 to 5.

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