Human body posture tracking system based on micro inertial sensor and using method of human body posture tracking system based on a micro inertial sensor

The invention discloses a human body posture tracking system based on a micro inertial sensor. The human body posture tracking system comprises a data acquisition system, a wireless data transmissionsystem and a computer data processing system, wherein the data acquisition system comprises one or more data acquisition modules, each data acquisition module comprises one or more micro-inertia sensing units, a power management unit, a wireless transmitting device and a main control processing module, each micro-inertia sensing unit comprises a voltage reduction and current stabilization module and a nine-axis inertia sensor, each voltage reduction and current stabilization module is used for filtering clutters and stabilizing voltage for the corresponding nine-axis inertial sensor, and eachnine-axis inertial sensor comprises a three-axis accelerometer and a three-axis gyroscope which are respectively used for acquiring an acceleration value and a gyroscope angular velocity value. The invention provides a miniatu