Wireless Smell System for Hazardous Gases Detection

Abstract

This study describes the design and implementation of an electronic nose, which was applied to classify and identify hazardous gases generated in underground coal mines. For this purpose, an electrochemical sensor array was used to detect a set of toxic gases. This work illustrates the electronic components of a wireless multisensory system for the toxic gases detection on indoor environments (i.e., underground mines), which was performed with reduced size, low cost and low electrical consumption, in order to detect different compounds using the basic principle of operation of each component to be applied to the target gas. Furthermore, the sample collection, data communication and data processing in real time obtained an excellent performance for gas sensing and even to measure the concentration level of the chemical volatile compounds transmitted from different points of the detection zone. The results demonstrated that using a wireless electronic nose for toxic gases detection was possible to reach a success rate of discrimination of 97%, using principal components analysis (PCA) and Linear Discriminant Analysis (LDA).

Detection of harmful gases present in the environment

“…It collects data and measures various sullied gases such as CO, CO 2 , and LPG. The most problematic issues were related to zone programmes, as the most often utilised sensors are sensitive to barometrical circumstances [9], [10]. After the surface overflow and endorsement of the association between propelled nasal reactions and notice power, the electronic septum cause is too dependable.…”