Igrejas, GetúlioAmaral, Joana S.Rodrigues, Pedro João2014-09-152014-09-152012Igrejas, Getúlio; Amaral, J.S.; Rodrigues, P.J. (2012). Fall detection system for elderly people : a neural network approach. In Final Program and Book of Abstracts BIOSTEC 2012. Vilamoura, Portugalhttp://hdl.handle.net/10198/10426In this work a new approach for a fall detection system is proposed. The device integrates a 3-axis accelerometer and a 3-axis gyroscope to measure linear acceleration and angular velocities, respectively. Information from both sensors is used to characterize movements through selected features extracted from raw data. A classification system based on a Feedforward Backpropagation Neural Network is then trained, based on the extracted features. The performed tests present low false positives and low false negatives rates with good specificity and sensitivity values.engconference object