Abstract: Described is a process for reconstructing the movement of an individual who walks inside a space and who carries a device equipped with inertial sensors and a virtual representation (M) of the space. The process comprises: —an acquisition step of a first reference position (Pr1) and by choice: a first reference direction (vr1) associated with the first reference position (Pr1) or a second reference position (Pr2); —a detection step which comprises detecting, by means of the inertial sensors, a direction of movement for each step made by the individual; —a reconstruction step which comprises forming a trajectory (100) of the path of the individual, as a sequence of vectors (V1, V2, Vm); —an estimation step.

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: 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.