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Air Quality Monitoring System Using NDIR-CO$_2$ Sensor for Underground Space based on Wireless Sensor Network  

Kwon, Jong-Won (Dept. of Electrical and Computer Engineering, University of Seoul)
Kim, Jo-Chun (Dept. of Environmental Engineering, Konkuk University)
Kim, Gyu-Sik (Dept. of Electrical and Computer Engineering, University of Seoul)
Kim, Hie-Sik (Dept. of Electrical and Computer Engineering, University of Seoul)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.46, no.4, 2009 , pp. 28-38 More about this Journal
Abstract
In this study, a remote air quality monitoring system for underground spaces was developed by using NDIR-based CO$_2$ sensor. And the remote monitoring system based on wireless sensor networks was installed practically on the subway station platform. More than 6.5 million citizens commutate everyday by the Seoul subway transportation that is the most typical public transportation. They concern about air quality with increasing interest on public health or many workers in subway stations or underground shopping centers. Recently, the Korean Ministry of Environment has operated the air quality monitoring system in some subway stations for testing phase. However, it showed many defects which are large-scale, high-cost and maintenance of precision sensors imported from abroad. Therefore this research includes the reliability test and a theoretical study about the inexpensive commercialized CO$_2$ sensor for reliable measurement of air quality which changes rapidly by the surrounding environments. And then we develop the wireless sensor nodes and the gateway applied for remote air quality monitoring. In addition, web server program was realized to manage air quality in the subway platform. This result will be valuable for a basic research for air quality management in underground spaces for future study.
Keywords
NDIR(Non-Dispersive Infrared); CO$_2$; IAQ(Indoor Air Quality); Monitoring application;
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Times Cited By KSCI : 1  (Citation Analysis)
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