DISPOSITIF ET PROCEDE D'IDENTIFICATION D'UN MOUVEMENT CYCLIQUE, PROGRAMME D'ORDINATEUR CORRESPONDANT

摘要

This device (10) for identifying a type of cyclical motion of a physical system from among a set of types of possible cyclical motions comprises: at least one motion sensor (18) for providing a sequence of observation data of the physical system; means (20) for storing at least one statistical hidden Markov model (HMM-1, ..., HMM-N); and a calculator (22) programmed (28A) to analyse the sequence of observation data and select a type of cyclical motion based on the stored statistical model. The storage means (20) comprise at least one statistical hidden Markov model for each possible type of cyclical motion and the calculator (22) is programmed (28A) to analyse a compatibility of the observation data sequence with each possible type of cyclical motion based on the statistical model associated with that type of cyclical motion. Furthermore, the calculator (22) is programmed (28B) to provide a sequence of hidden states of the statistical model associated with the selected type of cyclical motion based on the sequence of observation data and the statistical model associated with the selected type of cyclical motion.