Pedometer navigator system

Details Pedometer navigator system Pedometer navigator system

G - Physics

01

C

G01C 22/00 (2006.01) G01C 21/16 (2006.01) G01C 21/20 (2006.01)

Patent

CA 2354878

A pedometer navigator system has an Euler Angle Measuring Subsystem (EAMS) coupled to a body frame provides Euler angles of a fixed coordinate system with respect to a navigational coordinate system. A left and right sensors are mounted on a surveyor's feet. An SBPMS (short baseline position measuring subsystem) provides a left vector Image and a right vector Image characterizing the position of the sensors with respect to the SBPMS coordinate system origin. A computer means responds to the Euler angles, and the left and right vector and determines an interval during which the left or right foot is stationary and provides a transition vector referenced to the earth fixed navigational coordinate system. A navigation algorithm adds each transition vector to the previous present position of the navigation reference system to obtain a next present position of the position measuring subsystem.

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