Multifunctional intelligent air quality detection system and detection method with adjustable resolution

Abstract

The invention relates to a multifunctional intelligent air quality detection system with adjustable resolution ratio and a detection method. The system is equipped with one or more air quality detection device distributed in a monitoring area in the form of one main node or one main node and one or more secondary node; each air quality detection device is equipped with a photosensitive sensing unit, a light source unit and an outer shell; the light source unit and the photosensitive sensing unit are respectively connected with the two sides of the end part of the outer shell in the manner of adjustable light beam length through the threads; the outer shell has a cylindrical structure; an air inlet is formed on the outer shell. A large-diameter lens is adopted by the invention, so that air intake volume in the light beam scope can be increased; the detection sensitivity of the device can be increased; the length of the light beam can be changed by changing the length of a ruler, so that the resolution ratio of the device can be changed; data can be conveniently uploaded; the traditional single point test is replaced; the detection result is more true and valid; the scope of the monitoring area is widened.

Description

technical field [0001] The invention relates to an air quality intelligent detection technology, in particular to a resolution-adjustable multifunctional intelligent air quality detection system and detection method. Background technique [0002] Atmospheric pollution is the entry of certain substances into the atmosphere due to human activities or natural processes, presents in sufficient concentrations for sufficient time, and thereby endangers the comfort, health and welfare of humans or the environment. Modern industrial production has made air pollution more and more serious. Once pollutants enter the atmosphere, they will be diluted and diffused. The stronger the wind, the stronger the atmospheric turbulence and the more unstable the atmosphere, the faster the dilution and diffusion of pollutants; otherwise, the slower the dilution and diffusion of pollutants. In the latter case, especially when there is a temperature inversion layer, pollutants can often accumulate t...

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Problems solved by technology

[0003] At present, there are many limitations in air quality monitoring. The concentration of soot particles and carbon dioxide in the air is generally measured at a single point, that is, the concentration of PM10 or PM2.5 is measured within a square meter. All parameters cannot be monitored, let alone measured. The position of the pollution source, the drift direction of the polluted air, etc., the function is single, the detection results are not representative, the monitoring sensitivity is low, and the resolution is poor

[0004] At the same time, the original device occupies a large area, is heavy, and cannot be moved. It must use a stable mains power supply to provide working power, which consumes a lot of energy and is expensive.

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