Abstract: The present invention relates to a method for estimating the value of the angle of the direction of motion or of the walk of a person who carries a device capable of measuring the basic quantities related to his/her own inertia such as a common smartphone. The device is capable of measuring for example acceleration and angular rotation and to determine its orientation relative to Magnetic North. The estimation method in question is particularly suitable for estimating the direction angle of the individual's motion regardless of how the individual carries the device able to measure the main inertial quantities and consequently this method solves the problem of the determination of the relative attitude between the reference system of the carried device and the user reference system that moves within a generic absolute reference system.

Abstract: A method and apparatus for reconstructing the behavior of an individual which provides: a detection operation, comprising recording monitoring signals using a detection apparatus carried by the subject; a mapping operation, comprising recording monitoring signals in an environment in which the behavior of the subject is to be reconstructed and the monitoring signals are to be associated with a map of the environment; an operation of reconstructing the behavior, comprising taking on as positions, over time, points on the map in which the monitoring signals recorded in the detection operation correspond to the monitoring signals recorded in the mapping operation.

Abstract: The present invention relates to a calibration method of magnetic sensors, for removing from the measurements the so-called “bias” and obtaining the actual measurement of the magnetic field. This method, in addition to measurements of such magnetic sensors, uses measurements of angular rotation sensors available in various types of commercial devices including smartphones. The present invention also relates to a corresponding system for determining the instantaneous real time orientation and/or position of a mobile device with respect to a magnetic field.

Abstract: Method for estimating the position of a portable device which includes: a first estimation step (11), in which is estimated the position and the extension of a first spatial region (100) where the portable device is located and; a second estimation step (12), in which is estimated the position of the portable device by the selection of the position where the portable device is located among the positions included in the first spatial region (100).

Abstract: The present invention relates to a calibration method of magnetic sensors, for removing from the measurements the so-called “bias” and obtaining the actual measurement of the magnetic field. This method, in addition to measurements of such magnetic sensors, uses measurements of angular rotation sensors available in various types of commercial devices including smartphones. The present invention also relates to a corresponding system for determining the instantaneous real time orientation and/or position of a mobile device with respect to a magnetic field.

Abstract: A method for the localization of an individual, which comprises: —detecting a displacement associated with a movement of said individual; —recording environmental signals recordable during said step and forming a detected time series; —applying said displacement to the particles of a particle filter; —assigning a similarity index to each particle of the particle filter; —resampling the particle filter; —assuming, as the estimated position of the individual, the position of the particle having the greatest value of the similarity index or the center of a group of particles having a predefined common characteristic.

Abstract: A method for the localization of an individual, which comprises: —detecting a displacement associated with a movement of said individual; —recording environmental signals recordable during said step and forming a detected time series; —applying said displacement to the particles of a particle filter; —assigning a similarity index to each particle of the particle filter; —resampling the particle filter; —assuming, as the estimated position of the individual, the position of the particle having the greatest value of the similarity index or the centre of a group of particles having a predefined common characteristic.