×

Walking stick navigator for position determination

  • US 7,043,364 B2
  • Filed: 01/25/2005
  • Issued: 05/09/2006
  • Est. Priority Date: 12/03/2001
  • Status: Active Grant
First Claim
Patent Images

1. A walking stick navigator (WSN) on a staff having a lower end, and a top end, the WSN being carried by a surveyor and comprising:

  • an Aided Inertial Navigation System (AINS) coupled to the staff, the AINS having an IMU providing inertial outputs,a switch coupled to the lower end to provide a contact signal indicating when the lower end of the staff assembly is stationary, the contact signal defining the duration of a stationary interval,a GPS receiver and antenna attached to the staff, the GPS receiver being coupled to provide a first aiding signal to the AINS,a digital computer running a position measurement program solving a position aiding algorithm responsive to the IMU outputs and the contact signal, the position measurement program providing a second aiding signal to the AINS.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×