Diabetes diagnostic system for detecting respiratory gases based on electronic nose

A diabetes diagnostic system for detecting respiratory gases based on an electronic nose.The diabetes diagnostic system comprises a respiratory gas collecting module, a gas information acquiring module, a feature extracting and screening module and a mode recognizing module, wherein the respiratory gas collecting module collects respiratory gases into a gas bag through a respiratory gas exchanging device; the gas information acquiring module is used for reacting sensitive gases in the respiratory gases sent by the gas bag through a micro-cantilever resonant type gas sensitive sensor, converting concentration information of the sensitive gases into corresponding resonant frequency signals and sampling the resonant frequency signals; the feature extracting and screening module conducts feature extracting and feature screening on the sampled signals, the signals subjected to feature extracting and screening are transmitted to the mode recognizing module; the mode recognizing model conducts training and recognizing on acquired data through a mode recognizing method.The system can achieve quick non-invasive diagnosis on diabetes, and has the advantages that the noninvasion is achieved, price is low, reliability is high, real-time online measuring and portable design can be achieved, the analysis time is short, and operation is easy.