Calibration method and system based on miniature air quality monitoring instrument

Abstract

The invention relates to the field of air quality monitoring, and particularly relates to a calibration method and system based on a miniature air quality monitoring instrument. The method comprises the following steps: carrying out delivery calibration, in a set range of the monitoring instrument, when a measured concentration C and an electric signal value x are in linear correlation, acquiringa slope k and an intercept b; inspecting and testing delivery consistency: placing the n monitoring instruments near a standard station, in a space range with the same concentration, obtaining a datapair of the measured concentration C and the electric signal value x, and performing unary linear regression analysis on the data pair to obtain a delivery linear equation; acquiring a parameter value: acquiring a correction coefficient between the monitoring instruments; and carrying out field intelligent calibration: placing the reference monitoring instrument near the standard station of a to-be-detected area, generating calibration parameters, calculating data of each monitoring instrument according to a linear equation of the corrected parameters to obtain a result, and re-establishing alinear relationship between the electric signal and the detected concentration. The method is simple, programming is convenient, self-learning is supported, and a calculation speed is high.

Description

technical field [0001] The invention relates to the field of air quality monitoring, in particular to a calibration method and system based on miniature air quality monitoring instruments. Background technique [0002] The problem of air environment is not just a single problem, but is closely related to all aspects of society. Through the use of micro-monitoring instruments, on the one hand, it can save manpower and material resources to realize real-time monitoring of the air environment; on the other hand, it can further improve the air environment and human living environment, and further strengthen the construction of the ecological environment. [0003] This kind of micro-monitoring instrument realizes speaking with data and speaking with facts. However, the core of the technology lies in the combination of sensor technology, artificial intelligence technology, etc. Accurate and real-time monitoring of six air pollutants. The micro-monitoring instruments are deploye...

AI Technical Summary

Problems solved by technology

[0004] In order to reduce the data deviation problem caused by the physical characteristics of ordinary sensors, the present invention provides a calibration method based on micro-air quality monitoring instruments, which can improve the accuracy of micro-monitoring instruments to a certain extent. The data deviation problem caused by its own physical characteristics makes a certain reference value

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