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Air quality monitoring method based on multisensor fusion

A sensor and measurement sensor technology, applied in the field of air analysis, can solve the problems of poor measurement consistency, low measurement accuracy, and high noise.

Inactive Publication Date: 2016-08-03
BEIJING INSIGHTS VALUE TECHNOLOGY CO LTD
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Problems solved by technology

However, the portable analysis device using the scattering method has the disadvantages of poor measurement consistency, high noise, and low measurement accuracy, so it is difficult to directly use it to measure air

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  • Air quality monitoring method based on multisensor fusion

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Embodiment Construction

[0018] When the scattering method is used to measure pollutants in the air, the emitted laser is in the range of hundreds of nanometers to more than one thousand nanometers, and the particle size of the pollutants to be measured is below 2500 nanometers for PM2.5, and for For PM10, the particle size is below 10,000 nanometers, the wavelength of the visible laser is equivalent to the particle size of the pollutant to be measured, and the laser shows both volatility and particle properties at the same wavelength, while the scattering effect used by the light scattering method is only The particle nature of light can be used for measurement, so a single measurement cannot completely and accurately present the number of particles in the space to be measured.

[0019] The invention fuses multiple groups of measurement data of multiple sensors, and optimizes the problem of pseudo-random error introduced by the fluctuation of light. The data fusion method can choose the existing fusi...

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Abstract

The invention relates to an air quality monitoring method. Mainly aiming at the defects that a portable air quality monitor adopting a laser scattering method for measurement is poor in measurement consistency, large in noise, low in measurement accuracy and the like, multiple sensors are adopted for simultaneous measurement, data fusion is conducted on measurement results of the multiple sensors with a multi-layer neural network, and therefore atmospheric pollution particulate matter is monitored at high reliability and high accuracy.

Description

technical field [0001] The invention relates to the field of air analysis, in particular to the measurement and analysis of atmospheric particulate pollutants, especially the portable pollutant measurement and analysis that can be used outdoors. Background technique [0002] With the acceleration of economic and social development and urbanization, China's air pollution situation is becoming increasingly serious, especially in the Beijing-Tianjin-Hebei region, the Yangtze River Delta and other urban agglomerations where severe smog occurs frequently, which has a serious negative impact on public health . [0003] For the control of smog, the first thing to solve is to accurately find out the source of pollution, analyze and calculate the pollution transmission path, and establish a regional joint prevention and control supervision platform, so that the governance can be targeted, efficient and precise, and the management is convenient, fast, well-founded and effective. It i...

Claims

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Application Information

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IPC IPC(8): G01N33/00
CPCG01N33/0034Y02A50/20
Inventor 廖炳瑜
Owner BEIJING INSIGHTS VALUE TECHNOLOGY CO LTD
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