THE AIR QUALITY EVALUATION BASED ON GAS SENSOR ARRAY

Nowadays, air quality is more and more getting attention in our daily-life, not only outdoors, but also indoors like workplace, smart home system. Air quality is to a great extent closely related to people's health and comfort, so its evaluation is meaningful and significant to avoid danger or even harmful influence to life safety. The quality of air people inhale should be under the full monitoring scope, however, such generalized air quality evaluation is not defined. If it could be defined, that would bring people some helpful tips and cautions. In this paper, several evaluation methods of air quality are proposed, with sensing signals of all sensor dimensions acquired, air quality at different levels can be evaluated by calculated results. Pollutant type can be identified based on different sensors response, provided that more and more pollutant types are trained.