Air quality monitoring system and monitoring method thereof

Abstract

The invention discloses an air quality monitoring system and a monitoring method thereof. The air quality monitoring system comprises a power-supply module, a gas collecting and processing module, a data processing module and a storage module, wherein the power-supply module can output a plurality of voltage power supply after performing direct-current conversion, voltage reduction and voltage stabilization on input voltage; the gas collecting and processing module can perform concentration collection on different types of gases and VOCs through a built-in gas sensor and output corresponding concentration signals and can amplify, follow and filter the concentration signals and output corresponding voltage signals; the data processing module can convert the voltage signals into digital signals, can perform temperature and humidity compensation on the digital signals according to collected environmental temperature and humidity to obtain corresponding gas concentration values and can output the concentration values through RS485 communication; the storage module is used for storing product information, factory parameters and calibration parameters. Varieties of gas sensors are integrated together; compared with an existing single gas detection module, more convenience and more easiness are brought to multi-gas detection.

Description

technical field [0001] The invention relates to the technical field of gas monitoring, in particular to an air quality monitoring system and a monitoring method thereof. Background technique [0002] With the rapid development of modern industry, human damage to the environment has become increasingly prominent. In recent years, our country has also promulgated a number of laws and regulations for the monitoring and governance of environmental quality. Nowadays, air quality has become one of the social topics that people pay most attention to daily. How to monitor air quality conveniently, quickly and effectively has become one of the indispensable means to ensure good air quality. [0003] At present, common air quality monitoring devices often use a single gas acquisition module (gas sensor), output signal IIC (Inter-Integrated Circuit) signal, 4-20mA (minimum current is 4mA, maximum current is 20mA signal), RS485 and other gases Collect the signal; calculate the gas con...

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies of the prior art above, the purpose of the present invention is to provide an air quality monitoring system and its monitoring method to solve the problem that the current air quality monitoring device is inconvenient to detect multiple gases at the same time

Images