Development of Electronic Nose and Program for Monitoring Air Pollutions and Alarm in Industrial Area

This article presents the development of electronicnose and program for monitoring air pollutions and alarm inindustrial area. The design of electronic nose depends onphysical connectivity of the sensors, relating to the datamanagement, computing management and informationmanagement. Therefore, the sampling, filtering and sensorsmodule, signal transducers and acquisition, data preprocessing,feature extraction and feature classification are applied in thedesign of an electronic nose. There are 4 sensors areinvestigated to use as electronic nose in this experiment whichconsist of TGS2620, TGS2620, TGS2442 and TGS832. Thesesensors are operated with LabVIEW program. The experimentresults show that these sensors can classify and sensitive to thedifferent gas such as Methanol n-Propanol, Hexane andDichloromethane. The PCA is also used to classify group of gassensor. The system also performs the warning and alarm systemwhen the gas is leak.