A low cost electronic nose for multimedia applications.

摘要

Multimedia systems are widely used in consumer electronics environments today, where humans can work and communicate through multi-sensory interfaces. Unfortunately smell detection is not yet part of today's multimedia systems. On the other hand, the interest in electronic noses has grown enormously in the last decade and the smell devices have already reached the commercial market targeting several sectors of the world global economy. However, these devices are still too expensive for acquisition by general consumers.; In this thesis, we present a complete design, implementation and evaluation of a low cost electronic nose suitable for integration into multimedia systems and capable to discriminate a large sub-set of commonly occurring smells. The proposed electronic nose system consists of several hardware and software modules. The hardware modules comprise the mechanisms developed to sniff and detect commonly occurring smells. One software module is dedicated to control and interface with the hardware mechanisms and three software modules are dedicated to smell signal processing, smell pattern recognition and performance evaluation over different smell environments.