International Journal of Circuits, Systems and Signal Processing

E-ISSN: 1998-4464
Volume 15, 2021

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of NAUN Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.

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Volume 15, 2021

Title of the Paper: Design and Implementation of an Air Quality Testing System Based on STC12C5A


Authors: Fenglong Wu, Fangmei Liu, Yuan Feng, Zengyu Cai

Pages: 1025-1032 

DOI: 10.46300/9106.2021.15.110     XML


Abstract: Indoor air quality and human health have proven to be related, but for home environment air quality detection system equipment accuracy is not high problem. This paper designs an air quality detection system that effectively handles the information of indoor air pollution. The microcontroller unit (MCU) STC12C5A was taken as the core to realize the detection and display of particulate matter (PM) 2.5 concentration, temperature, and humidity. Compared with the measurements by standard instruments, our system was proved effective through tests: the relative error of PM2.5 concentration was smaller than 3μg/m3; the temperature error was within 1℃; the humidity error was below 5% relative humidity (RH). This research provides an effective way to detect indoor air quality. The results of this paper are suitable for home environment and have a good application prospect.