Development of personal Electronic Nose for Smartphones for the Measurement of Odours in the Environment
A new miniaturized electronic nose (60x60 mm) connected to a smartphone through Bluetooth connection that was presented in this conference has an electronic design similar to other prototypes, but with a smaller size and consumption. The control of the system is based on a microcontroller PIC18F46K80. It includes four miniaturized MOX sensors and an integrated sensor of ambient temperature and humidity with suitable conditioning circuits.
Communications with the smartphone are made using a Low Power Bluetooth Transmitter. An Android application has also been developed to connect to the device and to monitor the measurements. Data processing is performed remotely on a server by sending a request to it and subsequently receiving the output value of a classifier based on neural networks or fuzzy logic calculated on the server.
Jesús Lozano1*, Patricia Arroyo1, José Ignacio Suárez1, José Luis Herrero1, José Pedro Santos2, Manuel Aleixandre2
1 Escuela de Ingenierías industriales. Universidad de Extremadura, Av. Elvas s/n, 06006 Badajoz, Spain.
2 GRIDSEN Instituto de Tecnologías Físicas y de la Información (ITEFI-CSIC), Serrano 144, 28006 Madrid, Spain.
*
Two points of view. Two ways of seeing calibration of Instrument Odour Monitors (in short here, o-sensors). The 29th and 30th of August, the Working Group (WG) 41 committed to the new standard on o-sensors, met in Berlin, Germany to discuss a bit more about the text. This time, there were some very hot discussions on the interesting issue of o-sensor calibration. The tense atmosphere was broken from time to time by the pause for coffees, but all in all, everybody was enjoying the fascinating discussions being hold in the meeting room of the 
