Atmospheric particulate mass compensation method and terminal

Abstract

The embodiment of the invention discloses an atmospheric particulate mass compensation method and terminal for compensating the mass of tiny particle size atmospheric particulates that cannot be monitored due to the sensitivity limit of monitoring equipment. The method provided by the embodiment of the invention comprises that: the terminal acquires a first set of atmospheric particulate particlesize in a preset time interval, calculates atmospheric particulate mass by means of the atmospheric particulate particle size according to a first preset algorithm, and acquires a second set of atmospheric particulate mass; the terminal carries out operation on the atmospheric particulate mass in the second set to obtain atmospheric particulate target mass positively correlated with the atmospheric particulate mass; the terminal calculates the atmospheric particulate compensation mass of particle size less than the atmospheric particulate particle size in the first set by means of the atmospheric particulate target mass according to a preset algorithm; and the terminal carries out operation on the atmospheric particulate target mass and the atmospheric particulate compensation mass so as to obtain an atmospheric particulate total mass within the preset time interval.

Description

technical field [0001] The present application relates to the field of environmental monitoring, in particular to a method and terminal for compensating the quality of atmospheric particulate matter. Background technique [0002] Particulate matter in the atmosphere (also referred to as aerosol, or atmospheric particulate matter for short) is ubiquitous in nature and in daily life, such as dust, bacteria, smog, smoke, etc. The sources of atmospheric particulate matter can be divided into natural sources and man-made sources. Natural sources include ground dust, volcanic ash released by volcanic eruptions, sandstorms, etc., and man-made sources include smoke and dust generated by various fuel combustion, material particles emitted by industrial production, and vehicle exhaust. Most of the atmospheric particles suspended in the atmosphere are formed in various industrial and agricultural production processes. The aerodynamic equivalent diameter (also known as particle size) o...

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Problems solved by technology

[0004] However, the core working component of the monitoring equipment based on the light scattering method is the sensor for measuring the particle size of atmospheric particles. Different types of sensors have different sensitivities, and the particle size of the smallest atmospheric particles that can be monitored is also different. For example : At present, the minimum particle size that can be monitored by the mainstream low-power PM2.5 sensor is generally between 0.3 μm and 0.4 μm, and the extremely small atmospheric particles smaller than 0.3 μm are difficult to be monitored by the low-power PM2.5 sensor As a result, the mass of this part of the extremely small atmospheric particulate matter is ignored, resulting in the loss of the mass of atmospheric particulate matter, so that the statistical analysis based on the mass of atmospheric particulate matter is further inaccurate

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