Smart Audio Sensor for Telemedicine

In order to improve patients'life conditions and to reduce the costs of long hospitalization, medicine is more and more inter-ested in telemonitoring techniques. We develop a smart audio sensor for a telemonitoring system. This sensor is equipped with microphones in order to detect a sound event (an abnor-mal noise or a call for help). The sound extracted information is send through a CAN bus. The originality of our approach consists in replacing the video camera monitoring, which the patients are uncomfortable with, by microphones surveying the sounds. We present the hardware implementation, the software treatments and a first evaluation of the algorithms used.