The development of air quality monitoring system
This paper presents about the development of automated monitoring device for environmental air pollutant detection. The main part of the device consists of a detector, microcontroller and timer circuit. The gas sensor TGS2600 were used to detect air contaminant level, in which the detection through...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Published: |
UniKLBMI
2011
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/6069/ http://eprints.uthm.edu.my/6069/1/The_Development_of_Air_Quality.pdf |
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| Summary: | This paper presents about the development of automated monitoring device for environmental air
pollutant detection. The main part of the device consists of a detector, microcontroller and timer circuit. The
gas sensor TGS2600 were used to detect air contaminant level, in which the detection through the sensor
measures in unit of part per million (ppm). A PIC Microcontroller 16F876A was utilized to convert the
analogue signal from the sensor into digital signal which finally displays the result through the liquid crystal
display (LCD). The timer circuit has been designed to help the main detector unit to operate automatically at
a specific programmed interval of 30 minutes. This gives an advantage to the system where the developed
device does not require manual operating from the user. In addition, a light emitting diode (LED) will be
utilized to indicate the user whenever the level of air quality exceeds 100ppm. Alternatively a buzzer system
was also fitted to furthermore alerting the user. In all, this air pollution device has been constructed in small
size to be used as a portable unit to be employed as in-situ air quality measuring devices. It could be used in
various places such as the teaching and learning laboratory, clean room facility, and also open area where
monitoring of air quality are at great concern. |
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