Patent ID: 7707906

Claim:
An ergonomic inertial positioning system, comprising: a motion sensor detecting movement of an object; an angle sensor detecting angle variation of the heading of the object; and a processor determining motion status of the object based on detected data provided by the motion sensor and the angle sensor, and calculating displacement ΔS i of the object utilizing the detected angle variation thereof based on the motion status without integral calculation, wherein the determined motion status comprises a stationary status, a turning status, or a moving status, and the processor calculates the displacement ΔS i of the object at a i-th step utilizing the following formula: Δ S i =( d (ΔΦ i )×cos Φ z i ,d (ΔΦ i )×sin Φ z i ), wherein i comprises a positive integer, d(ΔΦ i ) is the pace of the object at the i-th step, ΔΦ i is the angle variation of the object at the i-th step, Φz i is an angle representing the heading of the object at the i-th step.