Wireless Low Cost CO&sub&2&/sub& Monitoring System Design and Evaluation Using Non Dispersive Infrared Sensor

摘要

This paper presents a new wireless system for the measurement of CO_( 2 ) gas concentration for indoor and outdoor purposes based on low cost Non Dispersive Infrared sensors. The system has been implemented on a printed circuit board in order to obtain different aspects of the air pollution. Some experiments were achieved to evaluate the total system combined with an android application on a smartphone. Different tests were realized in a closed room nearly filled with students and also directly while driving on the road. Good results were obtained allowing a future use for air pollution mapping using numerous amounts of sensors inside vehicles.