COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIESALTERNATIVES
发明人:
JALLON, PIERRE
申请号：
EP10715837.0
公开号：
EP2421437A1
申请日:
2010.04.26
申请国别(地区):
EP
年份:
2012
代理人:
摘要：
The invention relates to a system for determining the activity of a mobile element (EM), including at least one motion sensor (CM) with at least one measurement axis, provided with an attachment means (MF) for rigidly connecting said motion sensor (CM) to said mobile element (EM), including: a filter (FILT) for selecting, for every measurement axis of the motion sensor, high frequencies above a first threshold (S1) a means (DET) for determining a one-dimensional high-frequency component (y(n)) equal to the square of the Euclidean norm of said high frequencies of the measurement axes taken into account by said motion sensor (CM) a means (CALC) for calculating, for every state, probability density functions (Py, i) of said high-frequency component (HF), said probability density function corresponding to each state according to a chi-square distribution of a degree of freedom equal to the number of measurement axes taken into account by the motion sensor (CM) and an analysis means suitable for defining states of the mobile element, said analysis means combining: the probability density function of said high-frequency component for each state, the probability of changing between two consecutive states.Système de détermination de lactivité dun élément mobile (EM), comprenant au moins un capteur de mouvement (CM) à au moins un axe de mesure, muni de moyens de fixation (MF) pour lier solidairement ledit capteur de mouvement (CM) audit élément mobile (EM), comprenant : - un filtre (FILT) pour sélectionner, pour chaque axe de mesure du capteur de mouvement, des hautes fréquences supérieures à un premier seuil (S1) - des moyens de détermination (DET) dune composante hautes fréquences (y(n)) unidimensionnelle égale au carré de la norme euclidienne desdites hautes fréquences des axes de mesure pris en compte du capteur de mouvement (CM) - des moyens de calcul (CALC), pour chaque état, de densités de probabilités (Py,i) de ladite composante hautes fréquences (HF), ladite densité
