Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment
Reexamination Certificate
2005-02-08
2005-02-08
Zanelli, Michael J. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Navigation
Employing position determining equipment
C701S213000, C701S216000, C342S357490
Reexamination Certificate
active
06853909
ABSTRACT:
A walking stick navigator (WSN) apparatus and method comprises an aided INS (AINS) on a staff assembly with the “look and feel” of a GPS survey instrument. When GPS is available, the AINS is aided by GPS data, and the survey or manipulates the staff assembly like a standard GPS survey instrument. When GPS is not available due to signal obstruction, the surveyor manipulates the staff assembly as a walking stick. A switch means coupled to the lower end of the staff assembly provides a stationary interval signal when the surveyor plants and holds the WSN on the ground while walking. A digital computer is coupled to be responsive to AINS output signals and to the stationary interval signals and to run a program that solves a position aiding algorithm and a velocity aiding algorithm that provide at least one aiding input to the AINS for each successive stationary interval.
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Applanix Corporation, INC
Kirk James F.
Zanelli Michael J.
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