摘要:
The present invention relates to a method of identifying the geometric parameters of devices each comprising at least one accelerometer, each platform being disposed on a segment of an articulated body. Said method comprises steps of evaluating values of parameters characterizing the orientation and the position of each sensor in the reference frame of each segment and of the length of each segment, in a reference frame of said segment, by using predetermined configurations and movements of the structure. The method of the invention makes it possible to provide a device for capturing the movements of said body with measurements which allows greater reliability of said measurements.
摘要:
The system for measuring a magnetic field comprises a main three-axis sensor (1) for measuring the magnetic field that is able to move together with a carrier (2) capable of generating at least one additional magnetic field that disrupts the measurements of the said main three-axis sensor (1), the said three-axis sensor (1) being designed to provide orthonormal measurements for a reference magnetic field in the absence of magnetic disturbances due to the said carrier (2). The system comprises means (5, 6, 7, 9, 4a, 4b) of adjusting the said main three-axis sensor (1) comprising a removable additional sensor for measuring a magnetic field, that is able to move together with the said carrier (2) and positioned on the outside of the said carrier (2) away from the additional magnetic field or fields.
摘要:
The present invention relates to a system for capturing the movements of a body consisting of substantially rigid segments articulated together and a method for using said system. The system comprises attitude platforms fixed to the segments of the body, said platforms each comprising at least one accelerometer and one magnetometer, and a reduced number of gyrometers. It also comprises a module for detecting pseudo-static states and a module for calculating pseudo-static angles. When all the segments are detected in a pseudo-static state, the state vector is provided by the module for calculating the pseudo-static angles. When a segment is detected in a dynamic state, the state vector is provided at the output of a Kalman filter.