CN107631963B - Atmospheric particulate matter mass compensation method and terminal - Google Patents
Atmospheric particulate matter mass compensation method and terminal Download PDFInfo
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- CN107631963B CN107631963B CN201710845944.2A CN201710845944A CN107631963B CN 107631963 B CN107631963 B CN 107631963B CN 201710845944 A CN201710845944 A CN 201710845944A CN 107631963 B CN107631963 B CN 107631963B
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Abstract
The embodiment of the application discloses a method and a terminal for compensating the quality of atmospheric particulates, which are used for compensating the quality of the atmospheric particulates with tiny particle sizes, which cannot be monitored due to the sensitivity limit of monitoring equipment. The method in the embodiment of the application comprises the following steps: the method comprises the steps that a terminal obtains a first set of atmospheric particulate particle sizes in a preset time interval, the mass of atmospheric particulates is obtained through calculation of the atmospheric particulate particle sizes according to a first preset algorithm, and a second set of the mass of the atmospheric particulates is obtained; the terminal calculates the mass of the atmospheric particulates in the second set to obtain the target mass of the atmospheric particulates positively correlated with the mass of the atmospheric particulates; the terminal calculates the atmospheric particulate matter compensation mass with the particle size smaller than that of the atmospheric particulate matter in the first set according to a second preset algorithm by the target mass of the atmospheric particulate matter; and the terminal calculates the target mass and the compensation mass of the atmospheric particulates to obtain the total mass of the atmospheric particulates within the preset time interval.
Description
Technical Field
The application relates to the field of environmental monitoring, in particular to a method and a terminal for compensating the quality of atmospheric particulate matter.
Background
Particulate matter in the atmosphere (also referred to as aerosol, or simply, atmospheric particulate matter) is ubiquitous in nature and in everyday life, such as dust, bacteria, haze, smoke, and the like. The sources of the atmospheric particulates can be divided into natural sources and artificial sources, wherein the natural sources comprise ground dust, volcanic ash released by volcanic eruption, sand storm and the like, and the artificial sources comprise smoke generated by burning various fuels, material particles emitted by industrial production, automobile exhaust and the like. Most of the atmospheric particles suspended in the atmosphere are formed in various industrial and agricultural production processes. The aerodynamic equivalent diameters (also referred to as particle sizes) of the different atmospheric particulates are also different, with particles having a particle size of less than 100 μm being referred to as Total Suspended Particulates (TSP), particles having a particle size of less than 10 μm being referred to as respirable particulates, denoted as PM10, and particles having a particle size of less than 2.5 μm being referred to as respirable particulates, denoted as PM 2.5. The smaller the particle size of the atmospheric particulates, the greater the impact on the health. With the progress of society and the improvement of living standard, people pay more and more attention to the environmental problem. Atmospheric particulates are important factors affecting the environment, and have important influences on atmospheric visibility, human health, global climate and the like, so that measurement of atmospheric particulates becomes important contents for environmental protection, disease prevention and the like.
At present, various types of monitoring devices based on different measurement principles or methods are used for monitoring atmospheric particulates, there are monitoring devices based on measurement methods such as a filter membrane weighing method, a piezoelectric crystal method, a micro-oscillation balance method or an β ray absorption method, which can directly measure the amount of atmospheric particulates, and there are monitoring devices based on a measurement method of a light scattering method, which first measure the distribution of the particle size of atmospheric particulates and then convert the particle size of atmospheric particulates into the amount of atmospheric particulates by calculation.
However, in the monitoring device based on the measurement method of the light scattering method, the core working components are sensors for measuring the particle size of the atmospheric particulates, the sensitivity of different types of sensors is different, and the particle size of the smallest atmospheric particulates that can be monitored is also different, for example: the minimum particle size that can be monitored by the current mainstream low-power PM2.5 sensor is generally between 0.3 μm and 0.4 μm, and the extremely small atmospheric particulates smaller than 0.3 μm are difficult to be monitored by the low-power PM2.5 sensor, so that the mass of the extremely small atmospheric particulates is ignored, and the mass of the atmospheric particulates is lost, so that the statistical analysis based on the mass of the atmospheric particulates is further inaccurate.
Disclosure of Invention
The embodiment of the application provides an atmospheric particulate matter mass compensation method and a terminal, which are used for compensating the mass of atmospheric particulate matters with tiny particle sizes, which cannot be monitored due to the sensitivity limit of monitoring equipment.
The specific technical scheme comprises the following steps:
the embodiment of the application provides a method for compensating the quality of atmospheric particulate matters, which comprises the following steps:
the method comprises the steps that a terminal obtains a first set of atmospheric particulate particle sizes, wherein the atmospheric particulate particle sizes are acquired by monitoring equipment within a preset time interval;
the terminal calculates the mass of the atmospheric particulates according to a first preset algorithm and the particle size of the atmospheric particulates in the first set, and obtains a second set of the mass of the atmospheric particulates;
the terminal calculates the mass of the atmospheric particulates in the second set to obtain a target mass of the atmospheric particulates, wherein the mass of the atmospheric particulates is positively correlated with the target mass of the atmospheric particulates;
the terminal calculates the atmospheric particulate matter compensation mass according to a second preset algorithm according to the target mass of the atmospheric particulate matter, wherein the atmospheric particulate matter compensation mass is the mass of the atmospheric particulate matter with the particle size smaller than that of the atmospheric particulate matter in the first set;
the terminal calculates the target mass of the atmospheric particulates and the compensation mass of the atmospheric particulates to obtain the total mass of the atmospheric particulates within the preset time interval.
Optionally, the calculating, by the terminal, the mass of the atmospheric particulates from the particle sizes of the atmospheric particulates in the first set according to a first preset algorithm includes:
the terminal is based on a calculation formula
Calculating to obtain the target particle size of the atmospheric particulates, and acquiring a third set of the target particle sizes of the atmospheric particulates, wherein D is the particle size of the atmospheric particulates, and D isdryThe target particle size of the atmospheric particulates is the particle size of the atmospheric particulates after drying, RH is the atmospheric environment relative humidity of a monitoring point obtained by the terminal, the monitoring point is the position of the monitoring equipment, and kappa is a hygroscopic constant corresponding to the components of the atmospheric particulates;
the terminal is based on a calculation formula
Calculating to obtain the mass of the atmospheric particulates, wherein Mdryρ is the atmospheric particulate matter density, which is the atmospheric particulate matter mass.
Optionally, the calculating, by the terminal, the atmospheric particulate matter compensation mass according to the target mass of the atmospheric particulate matter by using a second preset algorithm includes:
the terminal is according to the calculation formula Mcom＝k×MtotalCalculating to obtain the compensation mass of the atmospheric particulates, wherein McomCompensating mass, M, for the atmospheric particulatestotalK is a constant corresponding to the target particle size of the atmospheric particulates.
Optionally, the ρ comprises 1.6g/cm-3。
An embodiment of the present application further provides a terminal, which includes:
the device comprises a first acquisition unit, a second acquisition unit and a control unit, wherein the first acquisition unit is used for acquiring a first set of atmospheric particulate particle sizes, and the atmospheric particulate particle sizes are acquired by monitoring equipment within a preset time interval;
the first arithmetic unit is used for calculating the mass of the atmospheric particulates according to a first preset algorithm and the particle size of the atmospheric particulates in the first set;
a second acquiring unit for acquiring the second set of atmospheric particulate matter quantities;
the second operation unit is used for operating the mass of the atmospheric particulates in the second set to obtain the target mass of the atmospheric particulates, and the mass of the atmospheric particulates is in positive correlation with the target mass of the atmospheric particulates;
a third operation unit, configured to calculate, according to a second preset algorithm, an atmospheric particulate compensation mass from the target mass of the atmospheric particulate, where the atmospheric particulate compensation mass is a mass of an atmospheric particulate having a particle size smaller than that of the atmospheric particulate in the first set;
and the fourth operation unit is used for operating the target mass of the atmospheric particulates and the compensation mass of the atmospheric particulates to obtain the total mass of the atmospheric particulates in the preset time interval.
Optionally, the first arithmetic unit includes:
a first operation subunit for calculating formula
Calculating to obtain the target particle size of the atmospheric particulates, and obtaining a third set of the target particle size of the atmospheric particulatesAnd (D) is the particle size of the atmospheric particulates, DdryThe target particle size of the atmospheric particulates is the particle size of the atmospheric particulates after drying, RH is the atmospheric environment relative humidity of a monitoring point obtained by the terminal, the monitoring point is the position of the monitoring equipment, and kappa is a hygroscopic constant corresponding to the components of the atmospheric particulates;
a second operation subunit for calculating formula
Calculating to obtain the mass of the atmospheric particulates, wherein Mdryρ is the atmospheric particulate matter density, which is the atmospheric particulate matter mass.
Optionally, the third arithmetic unit includes:
a third operation subunit for calculating the formula Mcom＝k×MtotalCalculating to obtain the compensation mass of the atmospheric particulates, wherein McomCompensating mass, M, for the atmospheric particulatestotalK is a constant corresponding to the target particle size of the atmospheric particulates.
In addition, an embodiment of the present application further provides a terminal, where the terminal includes:
the system comprises a processor, a memory, a bus and an input/output interface, wherein the processor, the memory and the input/output interface are connected through the bus; the memory is stored with a program code, and the program code is used for storing an operation instruction; the processor is configured to execute the steps that the terminal needs to execute in any of the methods in the embodiments of the present application when calling the program code in the memory.
The present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the steps of any of the methods of the present application.
The embodiments of the present application also provide a computer-readable storage medium, it should be noted that a part of the technical solutions of the present application, which essentially or contributes to the prior art, or all or part of the technical solutions, may be embodied in the form of a software product, which is stored in a storage medium and is used for storing computer software instructions for the above-mentioned related devices, and when the instructions are run on a computer, the instructions cause the computer to execute the steps of any method in the embodiments of the present application.
The storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like, and is not limited herein.
According to the technical scheme, the embodiment of the application has the following advantages:
the method comprises the steps that a terminal obtains a first set of atmospheric particulate particle sizes acquired by monitoring equipment in a preset time interval, the atmospheric particulate mass is calculated according to a first preset algorithm according to the atmospheric particulate particle sizes in the first set, the atmospheric particulate mass obtained in a second set in the preset time interval is calculated by the terminal to obtain an atmospheric particulate target mass, the atmospheric particulate compensation mass is calculated according to a second preset algorithm according to the atmospheric particulate target mass to obtain an atmospheric particulate compensation mass, and finally the atmospheric particulate target mass and the atmospheric particulate compensation mass are calculated again to obtain the total atmospheric particulate mass in the preset time interval. According to the embodiment of the application, firstly, according to a first preset algorithm, the quality of the atmospheric particulates is obtained according to the particle size of the atmospheric particulates monitored by the monitoring equipment, then according to a second preset algorithm, the quality that the monitoring equipment cannot monitor the particle size of the extremely tiny atmospheric particulates except the particle size of the atmospheric particulates in the first set due to the sensitivity limit is obtained, and the quality of the atmospheric particulates, which cannot be monitored by the monitoring equipment and have the particle size smaller than the particle size of the atmospheric particulates in the first set, is calculated to the total mass of the atmospheric particulates as the atmospheric particulate compensation mass.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a method for compensating for the amount of atmospheric particulate matter in an embodiment of the present application;
FIG. 2 is a schematic diagram of another embodiment of a method for compensating for atmospheric particulate matter mass in an embodiment of the present application;
FIG. 3 is a schematic diagram of an embodiment of a terminal in an embodiment of the application;
fig. 4 is a schematic diagram of another embodiment of the terminal in the embodiment of the present application;
fig. 5 is a schematic diagram of another embodiment of the terminal in the embodiment of the present application.
Detailed Description
The embodiment of the application provides an atmospheric particulate matter mass compensation method and a terminal, which are used for compensating the mass of atmospheric particulate matters with tiny particle sizes, which cannot be monitored due to the sensitivity limit of monitoring equipment.
For ease of understanding, the following description of a specific flow in the examples of the present application, with reference to fig. 1, one example of the method for compensating for the amount of atmospheric particulate matter in the examples of the present application includes:
101. the method comprises the steps that a terminal obtains a first set of particle sizes of atmospheric particulates;
the monitoring equipment arranged at the monitoring point collects the particle size of the atmospheric particulates within a preset time interval, and the preset time interval can be selected automatically as required within the maximum monitoring duration of the continuous working of the monitoring equipment, for example, if the monitoring equipment can continuously work for 3 months at most, any time interval from the working time of the monitoring equipment to 3 months after the working is started can be selected as required to serve as the preset time interval, 1 day can be selected as the preset time interval, 1 month can also be selected as the preset time interval, and specific parts are not limited herein. After the preset time interval is selected as required, the terminal acquires a first set of atmospheric particulate particle sizes within the preset time interval from the monitoring device.
It should be noted that the particle size of the atmospheric particulates in the first set acquired by the monitoring device is the particle size of the atmospheric particulates that can be monitored by the monitoring device. Since the distribution function of the atmospheric particulate particle size in the air is generally a continuous function, and the core component of the monitoring device for monitoring the atmospheric particulate particle size is a particulate sensor, different types of particulate sensors have different sensitivities, that is, the minimum monitored atmospheric particulate particle size of the monitoring device using different types of particulate sensors is also different, for example, the minimum monitored particulate particle size of the monitoring device currently in the market for monitoring PM2.5 is between 0.3 μm and 0.4 μm, and then, for the monitoring device for monitoring PM2.5, the range of the atmospheric particulate particle size in the first set acquired by the terminal is between 0.3 μm and 2.5 μm. The situation is similar for monitoring devices of the type PM1, PM10, etc., and will not be described here.
It should be further noted that, in the embodiment of the present application, the monitoring process of the monitoring device on the particle size of the atmospheric particulate matter may be: the monitoring device collects the particle size of the atmospheric particulates in the monitoring environment in real time, the collected particle size of the atmospheric particulates is distributed to different preset particle size intervals and counted, when the preset time interval is reached, the monitoring device conducts arithmetic average operation on the particle size of the atmospheric particulates belonging to the different particle size intervals to obtain an average particle size of the atmospheric particulates in the particle size interval, and the average particle size of the atmospheric particulates is the particle size of the atmospheric particulates belonging to the particle size interval. Taking a monitoring device for monitoring PM2.5 as an example, assuming that the number of particle size intervals preset by the monitoring device is 5, the 5 particle size intervals are respectively 0.3 μm to 0.8 μm, 0.8 μm to 1.2 μm, 1.2 μm to 1.6 μm, 1.6 μm to 2.0 μm, and 2.0 μm to 2.5 μm, and are respectively marked as particle size interval 1, particle size interval 2, particle size interval 3, particle size interval 4, and particle size interval 5. If the monitoring device is set to require a day of acquisition 9: 00 to 10: 00, then at the monitoring device at 9: 00, when the monitoring device starts to work, the monitoring device starts to acquire the size of the particle size of the atmospheric particles in real time until the monitoring device is in a state that 10: and when the particle size is 00, stopping working, and assuming that the monitoring equipment acquires 100 atmospheric particulate particle sizes in the particle size interval 1, performing arithmetic average operation on the 100 acquired atmospheric particulate particle sizes by the monitoring equipment to obtain the atmospheric particulate particle size in the particle size interval 1, wherein the atmospheric particulate particle size in the particle size interval 1 can be marked as the atmospheric particulate particle size 1, and similarly, the atmospheric particulate particle sizes in the particle size interval 2 to the particle size area 5 can be respectively calculated to obtain the atmospheric particulate particle sizes 2 to 5. Then, the atmospheric particulates particles sizes 1 through 5 constitute a first set of atmospheric particulates particle sizes. In addition to the above-described monitoring process, the monitoring process of the monitoring device may be: the monitoring device obtains an atmospheric particulate particle size distribution function of atmospheric particulate particle sizes in relation to a time interval in a preset time interval, then the preset time interval is divided into a plurality of continuous small time intervals, the atmospheric particulate particle size distribution function corresponding to the small time intervals is operated in each small time interval, and the atmospheric particulate particle sizes corresponding to the small time intervals are obtained. In summary, the monitoring device may have a plurality of monitoring modes for the particle size of the atmospheric particulates, and the monitoring mode is not limited herein.
102. The terminal calculates the mass of the atmospheric particulates according to a first preset algorithm and the particle size of the atmospheric particulates;
after the terminal acquires the first set of the atmospheric particulate particle sizes collected by the monitoring equipment, the atmospheric particulate particle sizes are calculated according to a first preset algorithm, and the mass of the atmospheric particulate is obtained. In this embodiment, the terminal may directly calculate the amount of the atmospheric particulates according to the atmospheric particulates particle size by using a first preset algorithm, or may first obtain one or more intermediate parameters according to the first preset algorithm, and then obtain the amount of the atmospheric particulates by using the intermediate parameter calculation, where a manner of obtaining the amount of the atmospheric particulates by the terminal is specifically determined by using the first preset algorithm, and is not specifically limited herein.
103. The terminal obtains a second set of atmospheric particulate matter quantities;
and the terminal calculates the mass of the atmospheric particulates according to a first preset algorithm and the mass of the atmospheric particulates forms a second set.
104. Calculating the mass of the atmospheric particulates in the second set by the terminal to obtain the target mass of the atmospheric particulates;
after the terminal acquires the second set of the mass of the atmospheric particulates, the mass of the atmospheric particulates in the second set is calculated to obtain the target mass of the atmospheric particulates, and the mass of the atmospheric particulates is positively correlated with the target mass of the atmospheric particulates. The terminal may sum the amount of the atmospheric particulate matter in the second set to obtain a target amount of the atmospheric particulate matter, for example, if there are 5 amounts of the atmospheric particulate matter in the second set, which are 0.5 μ g, 0.8 μ g, 0.9 μ g, 1.3 μ g, and 1.5 μ g, respectively, the 5 amounts of the atmospheric particulate matter are summed to obtain 5 μ g, where the target amount of the atmospheric particulate matter is 5 μ g; the target mass of the atmospheric particulates can also be obtained by performing summation operation on the mass of the atmospheric particulates in the second set and then multiplying the sum by a fixed constant, and the specific operation mode is not limited here.
105. The terminal calculates the atmospheric particulate matter target mass according to a second preset algorithm to obtain the atmospheric particulate matter compensation mass;
after the terminal obtains the target mass of the atmospheric particulates, calculating the atmospheric particulates target mass according to a second preset algorithm to obtain the atmospheric particulates compensation mass, wherein the atmospheric particulates compensation mass is the mass of the atmospheric particulates with the particle size smaller than that of the atmospheric particulates in the first set. Still taking the monitoring device for monitoring PM2.5 in step 101 as an example, the smallest atmospheric particulate matter that can be monitored by the monitoring device has a particle size between 0.3 μm and 0.4 μm, the atmospheric particulate matter having a particle size smaller than 0.3 μm cannot be monitored by the monitoring device, and the distribution function of the atmospheric particulate matter particle size in the air is generally a continuous function, so that the atmospheric particulate matter having a particle size smaller than 0.3 μm generally exists, and therefore, for the monitoring device for monitoring PM2.5, the atmospheric particulate matter compensation mass is the mass of the atmospheric particulate matter having a particle size smaller than 0.3 μm. The situation is similar for monitoring devices of the type PM1, PM10, etc., and will not be described here.
It should be further noted that, in this embodiment, the terminal may directly calculate the atmospheric particulate compensation mass according to the second preset algorithm from the target mass of the atmospheric particulate, or may first obtain one or more intermediate parameters according to the second preset algorithm, and then obtain the atmospheric particulate compensation mass through calculation of the intermediate parameters, and a manner of obtaining the atmospheric particulate compensation mass by the terminal is specifically determined according to the second preset algorithm, and is not specifically limited herein.
106. And the terminal calculates the target mass and the compensation mass of the atmospheric particulates to obtain the total mass of the atmospheric particulates.
After the terminal obtains the atmospheric particulate matter compensation mass, the terminal calculates the atmospheric particulate matter target mass and the atmospheric particulate matter compensation mass to obtain the total mass of the atmospheric particulate matter. The terminal can perform summation operation on the target mass of the atmospheric particulates and the compensation mass of the atmospheric particulates to obtain the total mass of the atmospheric particulates, for example, if the target mass of the atmospheric particulates is 5 μ g and the compensation mass of the atmospheric particulates is 13 μ g, the total mass of the atmospheric particulates is 18 μ g; in addition, the terminal can also sum the atmospheric particulate target mass and the atmospheric particulate compensation mass and then multiply a fixed constant to obtain the total mass of the atmospheric particulate, and the specific operation mode is not limited here.
In the embodiment of the application, a terminal acquires a first set of atmospheric particulate particle sizes acquired by a monitoring device in a preset time interval, and calculates the atmospheric particulate mass according to a first preset algorithm from the atmospheric particulate particle sizes in the first set, the terminal calculates the atmospheric particulate mass acquired in a second set in the preset time interval to obtain an atmospheric particulate target mass, calculates the atmospheric particulate compensation mass according to a second preset algorithm from the atmospheric particulate target mass to obtain an atmospheric particulate compensation mass, and finally calculates the atmospheric particulate target mass and the atmospheric particulate compensation mass to obtain the atmospheric particulate total mass in the preset time interval. According to the embodiment of the application, firstly, according to a first preset algorithm, the quality of the atmospheric particulates is obtained according to the particle size of the atmospheric particulates monitored by the monitoring equipment, then according to a second preset algorithm, the quality that the monitoring equipment cannot monitor the particle size of the extremely tiny atmospheric particulates except the particle size of the atmospheric particulates in the first set due to the sensitivity limit is obtained, and the quality of the atmospheric particulates, which cannot be monitored by the monitoring equipment and have the particle size smaller than the particle size of the atmospheric particulates in the first set, is calculated to the total mass of the atmospheric particulates as the atmospheric particulate compensation mass.
To further understand how the terminal calculates the compensated mass of the atmospheric particulates according to the first preset algorithm and the second preset algorithm, the following describes in detail a specific process in the embodiment of the present application, with reference to fig. 2 in particular, another embodiment of the method for compensating the mass of the atmospheric particulates in the embodiment of the present application includes:
201. the method comprises the steps that a terminal obtains a first set of particle sizes of atmospheric particulates;
in this embodiment, step 201 is similar to step 101 in the embodiment shown in fig. 1, and detailed description thereof is omitted here.
202. The terminal is according to the calculation formula
Calculating to obtain the target particle size of the atmospheric particulates;
the terminal is according to the calculation formula
Calculating to obtain the target particle size of the atmospheric particulates, and acquiring a third set of the target particle size of the atmospheric particulates, wherein D is the particle size of the atmospheric particulates in the first set, and DdryThe target particle size of the atmospheric particulates in the third set is the particle size of the atmospheric particulates after drying, RH is the atmospheric environment relative humidity of a monitoring point obtained by the terminal, the monitoring point is the position of the monitoring device, and κ is a hygroscopic constant corresponding to the components of the atmospheric particulates.
RH can be monitored the relative humidity of atmospheric environment and obtain through monitoring the relative humidity of atmospheric environment by the monitoring facilities of the sensor of integrated monitoring atmospheric environment relative humidity within the time interval of predetermineeing, also can monitor the relative humidity of atmospheric environment and obtain through the monitoring instrument that sets up monitoring atmospheric environment humidity simultaneously at the monitoring point that this monitoring facilities is located, specifically here does not limit. After the monitoring equipment acquires the relative humidity of the atmospheric environment, the monitoring equipment can acquire the atmospheric ring through the communication module of the monitoring equipmentThe environment relative humidity is sent to the terminal, the obtained environment relative humidity can be uploaded to the cloud platform corresponding to the monitoring device, the terminal downloads the environment relative humidity from the cloud platform, and the mode of obtaining the environment relative humidity by the terminal is not limited here. κ is a hygroscopic constant corresponding to the composition of the atmospheric particulates, e.g., for the common atmospheric particulates components ammonium sulfate and ammonium nitrate, κ is about 0.6; for organic particulates, κ is between about 0 and 0.2, and is typically reduced to 0.1 in calculations. For example, assuming that a monitoring device integrating a sensor for monitoring the relative humidity of the atmospheric environment is arranged at a certain monitoring point, the monitoring device is a monitoring device for monitoring PM2.5, and on a certain day 0: 00 to 24: 00, monitoring that the atmospheric environment humidity in the time interval is 40% in a preset time interval, sending the atmospheric environment humidity to a terminal through a communication module of the monitoring device, assuming that under ideal conditions, each atmospheric particulate matter consists of organic particulate matters, and k is 0.1, in the preset time interval, the monitoring device acquires 10 atmospheric particulate matters according to the monitoring process in the step 101, and the particle diameters are respectively marked as D1、D2、D3、D4、D5、D6、D7、D8、D9、D10And sending the 10 atmospheric particulates to the terminal through the communication module of the terminal, substituting RH (40%) and k (0.1) into the terminal according to the formula, and respectively calculating to obtain 10 target atmospheric particulates corresponding to the atmospheric particulates, and respectively recording as Ddry1、Ddry2、Ddry3、Ddry4、Ddry5、Ddry6、Ddry7、Ddry8、Ddry9、Ddry10。
It should be noted that, a single atmospheric particulate matter is not only composed of one component, but generally composed of multiple components, and various components in the atmospheric particulate matter are generally mixed internally, that is, a single atmospheric particulate matter generally contains organic components and various inorganic components in similar proportions, in a preset time interval, the atmospheric particulate matter in the preset time interval may be obtained by a monitoring device integrated with a module capable of obtaining the atmospheric particulate matter, or the atmospheric particulate matter in the preset time interval may be obtained by setting an apparatus for obtaining the atmospheric particulate matter at a monitoring point where the monitoring device is located, which is not limited herein. After the atmospheric particulate matter is obtained, the obtained atmospheric particulate matter is subjected to component analysis through a particulate matter mass spectrometer or other instruments capable of analyzing components of the atmospheric particulate matter, so that the component composition of the atmospheric particulate matter is obtained. After the components of the atmospheric particulates are obtained, the terminal can calculate the calculation formula according to each k value corresponding to each component of the atmospheric particulates to obtain the corresponding target particle size of the atmospheric particulates (the specific scheme is proposed in another application, and is not described in detail here).
In addition, it should be noted that, the atmospheric particulate matter component at the monitoring point generally has little change on similar days in the past year, and if the atmospheric particulate matter is not obtained as described above, the calculation may be performed according to the atmospheric particulate matter component obtained at the monitoring point on a similar day in the past year; it is understood that in practical applications, if the atmospheric particulates are not obtained as described above, the atmospheric particulates may also be obtained after a preset time interval, for example, assuming that a monitoring device arranged at a certain monitoring point monitors the atmospheric particulates at 0/10/07/2017: 00 to 24: 00, but the atmospheric particulates at the monitoring point are not acquired in the same time interval, the atmospheric particulates related data acquired in 2016, 7 and 10 and subjected to component analysis can be selected for calculation, or 0 can be acquired in 2017, 07, 11 or 12: 00 to 24: 00 the atmospheric particulates at the monitoring point, and then performing component analysis on the obtained atmospheric particulates, wherein the specific details are not limited herein.
203. The terminal is according to the calculation formula
Calculating to obtain the mass of the atmospheric particulates;
the terminal is according to the calculation formula
Calculating to obtain the mass of the atmospheric particulates, wherein MdryAnd p is the mass of the atmospheric particulate matter, and is the density of the atmospheric particulate matter.
It should be noted that, the components of the atmospheric particulates in different regions and climates are different, the density of the atmospheric particulates is slightly different, and the atmospheric particulate density is generally 1.6g/cm by performing statistical analysis on the components and the quality of the atmospheric particulates obtained in most regions and climates-3However, it should be noted that if an accurate atmospheric particulate matter density in a certain area or under a certain climate condition needs to be obtained, the value of the atmospheric particulate matter density needs to be obtained by obtaining the atmospheric particulate matter density in the certain area or under the certain climate condition and measuring the atmospheric particulate matter density by using a corresponding measuring instrument, which is not limited herein. Here again taking the example shown in step 202 as an example, the terminal has already calculated the formula according to
Calculating to obtain 10 target particle diameters of atmospheric particulates, which are respectively Ddry1、Ddry2、Ddry3、Ddry4、Ddry5、Ddry6、Ddry7、Ddry8、Ddry9、Ddry10According to a calculation formula
And the density rho of the atmospheric particulates is taken as 1.6g/cm-3The terminal obtains 10 mass of atmospheric particulates corresponding to the target particle size of the 10 atmospheric particulates, and the mass is respectively marked as Mdry1、Mdry2、Mdry3、Mdry4、Mdry5、Mdry6、Mdry7、Mdry8、Mdry9、Mdry10。
204. The terminal obtains a second set of atmospheric particulate matter quantities;
after the terminal obtains the mass of the atmospheric particulates, the mass of the atmospheric particulates constitutes a second set. For example,taking the example shown in step 203 as an example, Mdry1、Mdry2、Mdry3、Mdry4、Mdry5、Mdry6、Mdry7、Mdry8、Mdry9、Mdry10A second set of atmospheric particulate matter masses is formed.
205. Calculating the mass of the atmospheric particulates in the second set by the terminal to obtain the target mass of the atmospheric particulates;
after the terminal acquires the second set of the mass of the atmospheric particulates, the mass of the atmospheric particulates in the second set is calculated to obtain the target mass of the atmospheric particulates, and the mass of the atmospheric particulates is positively correlated with the target mass of the atmospheric particulates. The terminal may sum the amount of the atmospheric particulate matter in the second set to obtain the target amount of the atmospheric particulate matter, for example, taking the example shown in step 204, the amount of 10 atmospheric particulate matters in the second set, each being Mdry1＝0.4μg、Mdry2＝0.6μg、Mdry3＝0.9μg、Mdry4＝0.5μg、Mdry5＝1.2μg、Mdry6＝1.4μg、Mdry7＝1.8μg、Mdry8＝1.9μg、Mdry9＝2.1μg、Mdry10Summing the mass of the 10 atmospheric particulates to obtain the target mass of the atmospheric particulates, wherein the target mass of the atmospheric particulates is 12.6 μ g; the target mass of the atmospheric particulates can also be obtained by performing summation operation on the mass of the atmospheric particulates in the second set and then multiplying the sum by a fixed constant, and the specific operation mode is not limited here.
206. The terminal is according to the calculation formula Mcom＝k×MtotalCalculating to obtain the compensation mass of the atmospheric particulates;
the terminal is according to the calculation formula Mcom＝k×MtotalCalculating to obtain the compensation mass of the atmospheric particulates, wherein McomCompensating mass, M, for atmospheric particulatestotalFor the target mass of the atmospheric particulates, k is the target particle size of the atmospheric particulates (i.e., D in this application)dry) The corresponding constants follow the recommendations of an internationally standardized instrument (for example Envi-CPC100 from PALAS, Germany)For example, when the target atmospheric particulate matter particle size is less than 1 μm (i.e., for PM 1), the constant k takes on a value of 1.5 for a target mass of atmospheric particulate matter particles having an atmospheric particulate matter particle size of less than 1 μm; when the target particle size of the atmospheric particulates is smaller than 2.5 μm (namely for PM 2.5), the constant k is 1.2 for the target mass of the atmospheric particulates with the particle size of the atmospheric particulates smaller than 2.5 μm; the k value is similar for the target particle size of other types of atmospheric particulates such as PM10, and the details are not repeated here. Taking the example shown in step 205 as an example, the monitoring device is a monitoring device for monitoring PM2.5, and k is 1.2, and the target mass M of the atmospheric particulates has been calculated in step 205total12.6 mug, then according to the formula Mcom＝k×MtotalThe compensation mass M of the atmospheric particulates can be calculatedcom＝15.1μg。
It should be noted that the atmospheric particulate compensation mass is the mass of the atmospheric particulate having a particle size smaller than that of the atmospheric particulate in the first set. Taking the monitoring device for monitoring PM2.5 as an example, the smallest atmospheric particulate matter that can be monitored by the monitoring device has a particle size of 0.3 μm to 0.4 μm, the atmospheric particulate matter having a particle size smaller than 0.3 μm cannot be monitored by the monitoring device, and the distribution function of the atmospheric particulate matter particle size in the air is generally a continuous function, so that the atmospheric particulate matter having a particle size smaller than 0.3 μm is also ubiquitous, and therefore, for the monitoring device for monitoring PM2.5, the atmospheric particulate matter compensation mass is the mass of the atmospheric particulate matter having a particle size smaller than 0.3 μm. The situation is similar for monitoring devices of the type PM1, PM10, etc., and will not be described here.
207. And the terminal calculates the target mass and the compensation mass of the atmospheric particulates to obtain the total mass of the atmospheric particulates.
After the terminal obtains the atmospheric particulate matter compensation mass, the terminal calculates the atmospheric particulate matter target mass and the atmospheric particulate matter compensation mass to obtain the total mass of the atmospheric particulate matter. The terminal can perform a summation operation on the target mass of the atmospheric particulates and the compensated mass of the atmospheric particulates to obtain a total mass of the atmospheric particulates, which is exemplified by the example shown in step 206The terminal acquires the target mass M of the atmospheric particulatestotal12.6 mug, atmospheric particulate compensation mass Mcom15.1 mug, the total mass of the atmospheric particulates is 27.7 mug; in addition, the total mass of the atmospheric particulates can also be obtained by performing summation operation on the target mass of the atmospheric particulates and the compensation mass of the atmospheric particulates and then multiplying the sum by a fixed constant, and the specific operation mode is not limited here.
In the embodiment of the application, the terminal acquires a first set of atmospheric particulate particle sizes acquired by the monitoring equipment within a preset time interval and calculates the first set according to a calculation formula
Calculating to obtain the target particle size of the atmospheric particulates, and then, the terminal obtains the target particle size of the atmospheric particulates according to a calculation formula
Calculating to obtain the mass of the atmospheric particulates, calculating the mass of the atmospheric particulates in the second set obtained in the preset time interval to obtain the target mass of the atmospheric particulates, and finally, calculating by the terminal according to a calculation formula Mcom＝k×MtotalAnd calculating to obtain the atmospheric particulate matter compensation mass, and calculating the target mass of the atmospheric particulate matter and the atmospheric particulate matter compensation mass to obtain the total mass of the atmospheric particulate matter in the preset time interval. According to the embodiment of the application, firstly, according to the calculation formula, the quality that the monitoring equipment cannot monitor the particle size of the extremely tiny atmospheric particulates except the particle size of the atmospheric particulates in the first set due to the sensitivity limit is obtained, and the mass of the atmospheric particulates, which cannot be monitored by the monitoring equipment and has the particle size smaller than the particle size of the atmospheric particulates in the first set, is calculated as the atmospheric particulate compensation mass to the total mass of the atmospheric particulates.
Fig. 1 and fig. 2 illustrate a method for compensating for an amount of atmospheric particulate matter in an embodiment of the present application, and a related apparatus in an embodiment of the present application is described below, the related apparatus includes a terminal, and specifically refer to fig. 3, where an embodiment of the terminal in the embodiment of the present application includes:
the first acquisition unit 301 is configured to acquire a first set of atmospheric particulate particle sizes, where the atmospheric particulate particle sizes are acquired by a monitoring device within a preset time interval;
a first operation unit 302, configured to calculate an amount of atmospheric particulates from the particle sizes of the atmospheric particulates in the first set according to a first preset algorithm;
a second acquiring unit 303 for acquiring the second set of atmospheric particulate matter quantities;
a second operation unit 304, configured to operate the mass of the atmospheric particulates in the second set to obtain a target mass of the atmospheric particulates, where the mass of the atmospheric particulates is positively correlated with the target mass of the atmospheric particulates;
a third operation unit 305, configured to calculate, according to a second preset algorithm, an atmospheric particulate compensation mass from the target mass of the atmospheric particulate, where the atmospheric particulate compensation mass is a mass of an atmospheric particulate having a particle size smaller than that of the atmospheric particulate in the first set;
a fourth operation unit 306, configured to operate the target mass of the atmospheric particulates and the compensation mass of the atmospheric particulates to obtain a total mass of the atmospheric particulates within the preset time interval.
In this embodiment of the application, a first obtaining unit 301 obtains a first set of atmospheric particulate matter particle sizes collected by a monitoring device in a preset time interval, a first operation unit 302 calculates, according to a first preset algorithm, an atmospheric particulate matter mass from the atmospheric particulate matter particle sizes in the first set, and obtains a second set through a second obtaining unit 303, a second operation unit 304 calculates, according to the second preset algorithm, the atmospheric particulate matter mass obtained in the second set in the preset time interval to obtain an atmospheric particulate matter target mass, then a third operation unit 305 calculates, according to the second preset algorithm, the atmospheric particulate matter target mass from the atmospheric particulate matter target mass to obtain an atmospheric particulate matter compensation mass, and finally a fourth operation unit 306 calculates the atmospheric particulate matter target mass and the atmospheric particulate matter compensation mass again to obtain an atmospheric particulate matter total mass in the preset time interval. According to the embodiment of the application, firstly, according to a first preset algorithm, the quality of the atmospheric particulates is obtained according to the particle size of the atmospheric particulates monitored by the monitoring equipment, then according to a second preset algorithm, the quality that the monitoring equipment cannot monitor the particle size of the extremely tiny atmospheric particulates except the particle size of the atmospheric particulates in the first set due to the sensitivity limit is obtained, and the quality of the atmospheric particulates, which cannot be monitored by the monitoring equipment and have the particle size smaller than the particle size of the atmospheric particulates in the first set, is calculated to the total mass of the atmospheric particulates as the atmospheric particulate compensation mass.
To further understand how the terminal calculates the atmospheric particulate compensation quality according to the first preset algorithm and the second preset algorithm, the first operation unit in the terminal includes a first operation subunit and a second operation subunit, and the third operation unit in the terminal includes a third operation subunit, with reference to fig. 4 in particular, an embodiment of the terminal in the embodiment of the present application includes:
a first acquisition unit 401, a first arithmetic unit 402, a second acquisition unit 403, a second arithmetic unit 404, a third arithmetic unit 405, and a fourth arithmetic unit 406;
the first obtaining unit 401, the first operation unit 402, the second obtaining unit 403, the second operation unit 404, the third operation unit 405, and the fourth operation unit 406 in this embodiment are similar to the first obtaining unit 301, the first operation unit 302, the second obtaining unit 303, the second operation unit 304, the third operation unit 305, and the fourth operation unit 306 in the embodiment corresponding to fig. 3, and are not described herein again;
in the embodiment of the present application, the first arithmetic unit 402 includes:
a first operation subunit 4021 for calculating a formula
Calculating to obtain the target particle size of the atmospheric particulates, and acquiring a third set of the target particle sizes of the atmospheric particulates, wherein D is the particle size of the atmospheric particulates, and D isdryThe target particle size of the atmospheric particulates is the particle size of the atmospheric particulates after drying, and RH is the size of the monitoring point obtained by the terminalThe relative humidity of the air environment, wherein the monitoring point is the position of the monitoring equipment, and kappa is a moisture absorption constant corresponding to the components of the atmospheric particulates;
a second operation subunit 4022 for calculating a formula
Calculating to obtain the mass of the atmospheric particulates, wherein Mdryρ is the atmospheric particulate matter density, which is the atmospheric particulate matter mass.
The third arithmetic unit 405 in the embodiment of the present application includes:
a third operation subunit 4051 for calculating the formula Mcom＝k×MtotalCalculating to obtain the compensation mass of the atmospheric particulates, wherein McomCompensating mass, M, for the atmospheric particulatestotalK is a constant corresponding to the target particle size of the atmospheric particulates.
The specific functions and structures of the terminal in the embodiments corresponding to fig. 3 and fig. 4 are used to implement the steps of processing performed by the terminal in the embodiments shown in fig. 1 to fig. 2, and are not described herein again.
As shown in fig. 5, a schematic diagram of an embodiment of a terminal in the embodiment of the present application includes:
the terminals may vary widely due to configuration or performance, and may include one or more Central Processing Units (CPUs) 522 (e.g., one or more processors) and memory 532, one or more storage media 530 (e.g., one or more mass storage devices) storing applications 542 or data 544. Memory 532 and storage media 530 may be, among other things, transient storage or persistent storage. The program stored in the storage medium 530 may include one or more modules (not shown), and each module may include a series of instruction operations in the terminal. Still further, the central processor 522 may be configured to communicate with the storage medium 530, and execute a series of instruction operations in the storage medium 530 on the terminal.
The terminal may also include one or more power supplies 526, one or more wired or wireless network interfaces 550, one or more input-output interfaces 558, and/or one or more operating systems 541, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.
The steps in the atmospheric particulate matter amount compensation method described in fig. 1 to 2 above are implemented by a terminal based on the structure shown in fig. 5.
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 manners. 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 integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit 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 may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes 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 described in the embodiments of fig. 1 to 2 of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (5)
1. A method of compensating for the mass of atmospheric particulates, comprising:
the method comprises the steps that a terminal obtains a first set of atmospheric particulate particle sizes, wherein the atmospheric particulate particle sizes are acquired by monitoring equipment within a preset time interval;
the terminal calculates the atmospheric particulate matter mass according to a first preset algorithm from the atmospheric particulate matter particle sizes in the first set, and the specific implementation mode is that the terminal calculates according to a calculation formula
the terminal calculates the mass of the atmospheric particulates in the second set to obtain a target mass of the atmospheric particulates, wherein the mass of the atmospheric particulates is positively correlated with the target mass of the atmospheric particulates;
the terminal calculates the atmospheric particulate matter target mass according to a second preset algorithm to obtain the atmospheric particulate matter compensation mass, and the specific implementation mode is that the terminal calculates the atmospheric particulate matter compensation mass according to a calculation formula Mcom＝k×MtotalCalculating to obtain the compensation mass of the atmospheric particulates, wherein McomCompensating the mass, M, for the atmospheric particulatestotalK is a constant corresponding to the target atmospheric particulate matter particle size, and the atmospheric particulate matter compensation mass is a mass of atmospheric particulate matter having a particle size smaller than the particle size of the atmospheric particulate matter in the first set;
and the terminal calculates the target mass of the atmospheric particulates and the compensation mass of the atmospheric particulates to obtain the total mass of the atmospheric particulates in the preset time interval.
2. The method of claim 1,
rho is 1.6g/cm-3。
3. A terminal, comprising:
the device comprises a first acquisition unit, a second acquisition unit and a control unit, wherein the first acquisition unit is used for acquiring a first set of atmospheric particulate particle sizes, and the atmospheric particulate particle sizes are acquired by monitoring equipment within a preset time interval;
a first arithmetic unit, configured to calculate an amount of the atmospheric particulates from the atmospheric particulates in the first set according to a first preset algorithm, where the first arithmetic unit specifically includes a first arithmetic subunit and a second arithmetic subunit, and the first arithmetic subunit is configured to calculate the amount of the atmospheric particulates according to a calculation formula
Calculating to obtain the target particle size of the atmospheric particulates, and acquiring a third set of the target particle sizes of the atmospheric particulates, wherein D is the particle size of the atmospheric particulates, and D isdryThe target particle size of the atmospheric particulates is the particle size of the atmospheric particulates after being dried, RH is the atmospheric environment relative humidity of a monitoring point obtained by the terminal, the monitoring point is the position of the monitoring equipment, kappa is a hygroscopicity constant corresponding to the components of the atmospheric particulates, and a second operation subunit is used for calculating the target particle size of the atmospheric particulates according to a calculation formula
Calculating to obtain the mass of the atmospheric particulates, wherein MdryThe mass of the atmospheric particulate matter is defined, and rho is the density of the atmospheric particulate matter;
a second acquiring unit for acquiring the second set of atmospheric particulate matter quantities;
a second operation unit, configured to operate the mass of the atmospheric particulates in the second set to obtain a target mass of the atmospheric particulates, where the mass of the atmospheric particulates is in positive correlation with the target mass of the atmospheric particulates;
a third operation unit for calculating the target mass of the atmospheric particulates according to a second preset algorithm to obtain the compensation mass of the atmospheric particulates according to a calculation formula Mcom＝k×MtotalCalculating to obtain the compensation mass of the atmospheric particulates, wherein McomCompensating the mass, M, for the atmospheric particulatestotalK is a constant corresponding to the target atmospheric particulate matter particle size, and the atmospheric particulate matter compensation mass is a mass of atmospheric particulate matter having a particle size smaller than the particle size of the atmospheric particulate matter in the first set;
and the fourth operation unit is used for operating the target mass of the atmospheric particulates and the compensation mass of the atmospheric particulates to obtain the total mass of the atmospheric particulates in the preset time interval.
4. A terminal, comprising:
the system comprises a processor, a memory, a bus and an input/output interface;
the memory has program code stored therein;
the processor, when calling program code in the memory, performs the method of any of claims 1-2.
5. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any of claims 1-2.
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